diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.c | 2805 |
1 files changed, 1226 insertions, 1579 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 9121646d7c4d..ed9955dce156 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -34,6 +34,11 @@ #include "i915_trace.h" #include "intel_drv.h" +/* Rough estimate of the typical request size, performing a flush, + * set-context and then emitting the batch. + */ +#define LEGACY_REQUEST_SIZE 200 + int __intel_ring_space(int head, int tail, int size) { int space = head - tail; @@ -42,52 +47,27 @@ int __intel_ring_space(int head, int tail, int size) return space - I915_RING_FREE_SPACE; } -void intel_ring_update_space(struct intel_ringbuffer *ringbuf) +void intel_ring_update_space(struct intel_ring *ring) { - if (ringbuf->last_retired_head != -1) { - ringbuf->head = ringbuf->last_retired_head; - ringbuf->last_retired_head = -1; + if (ring->last_retired_head != -1) { + ring->head = ring->last_retired_head; + ring->last_retired_head = -1; } - ringbuf->space = __intel_ring_space(ringbuf->head & HEAD_ADDR, - ringbuf->tail, ringbuf->size); -} - -int intel_ring_space(struct intel_ringbuffer *ringbuf) -{ - intel_ring_update_space(ringbuf); - return ringbuf->space; -} - -bool intel_ring_stopped(struct intel_engine_cs *ring) -{ - struct drm_i915_private *dev_priv = ring->dev->dev_private; - return dev_priv->gpu_error.stop_rings & intel_ring_flag(ring); -} - -static void __intel_ring_advance(struct intel_engine_cs *ring) -{ - struct intel_ringbuffer *ringbuf = ring->buffer; - ringbuf->tail &= ringbuf->size - 1; - if (intel_ring_stopped(ring)) - return; - ring->write_tail(ring, ringbuf->tail); + ring->space = __intel_ring_space(ring->head & HEAD_ADDR, + ring->tail, ring->size); } static int -gen2_render_ring_flush(struct drm_i915_gem_request *req, - u32 invalidate_domains, - u32 flush_domains) +gen2_render_ring_flush(struct drm_i915_gem_request *req, u32 mode) { - struct intel_engine_cs *ring = req->ring; + struct intel_ring *ring = req->ring; u32 cmd; int ret; cmd = MI_FLUSH; - if (((invalidate_domains|flush_domains) & I915_GEM_DOMAIN_RENDER) == 0) - cmd |= MI_NO_WRITE_FLUSH; - if (invalidate_domains & I915_GEM_DOMAIN_SAMPLER) + if (mode & EMIT_INVALIDATE) cmd |= MI_READ_FLUSH; ret = intel_ring_begin(req, 2); @@ -102,12 +82,9 @@ gen2_render_ring_flush(struct drm_i915_gem_request *req, } static int -gen4_render_ring_flush(struct drm_i915_gem_request *req, - u32 invalidate_domains, - u32 flush_domains) +gen4_render_ring_flush(struct drm_i915_gem_request *req, u32 mode) { - struct intel_engine_cs *ring = req->ring; - struct drm_device *dev = ring->dev; + struct intel_ring *ring = req->ring; u32 cmd; int ret; @@ -139,15 +116,12 @@ gen4_render_ring_flush(struct drm_i915_gem_request *req, * are flushed at any MI_FLUSH. */ - cmd = MI_FLUSH | MI_NO_WRITE_FLUSH; - if ((invalidate_domains|flush_domains) & I915_GEM_DOMAIN_RENDER) - cmd &= ~MI_NO_WRITE_FLUSH; - if (invalidate_domains & I915_GEM_DOMAIN_INSTRUCTION) + cmd = MI_FLUSH; + if (mode & EMIT_INVALIDATE) { cmd |= MI_EXE_FLUSH; - - if (invalidate_domains & I915_GEM_DOMAIN_COMMAND && - (IS_G4X(dev) || IS_GEN5(dev))) - cmd |= MI_INVALIDATE_ISP; + if (IS_G4X(req->i915) || IS_GEN5(req->i915)) + cmd |= MI_INVALIDATE_ISP; + } ret = intel_ring_begin(req, 2); if (ret) @@ -200,8 +174,9 @@ gen4_render_ring_flush(struct drm_i915_gem_request *req, static int intel_emit_post_sync_nonzero_flush(struct drm_i915_gem_request *req) { - struct intel_engine_cs *ring = req->ring; - u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES; + struct intel_ring *ring = req->ring; + u32 scratch_addr = + i915_ggtt_offset(req->engine->scratch) + 2 * CACHELINE_BYTES; int ret; ret = intel_ring_begin(req, 6); @@ -211,7 +186,7 @@ intel_emit_post_sync_nonzero_flush(struct drm_i915_gem_request *req) intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(5)); intel_ring_emit(ring, PIPE_CONTROL_CS_STALL | PIPE_CONTROL_STALL_AT_SCOREBOARD); - intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); /* address */ + intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); intel_ring_emit(ring, 0); /* low dword */ intel_ring_emit(ring, 0); /* high dword */ intel_ring_emit(ring, MI_NOOP); @@ -223,7 +198,7 @@ intel_emit_post_sync_nonzero_flush(struct drm_i915_gem_request *req) intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(5)); intel_ring_emit(ring, PIPE_CONTROL_QW_WRITE); - intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); /* address */ + intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); intel_ring_emit(ring, 0); intel_ring_emit(ring, 0); intel_ring_emit(ring, MI_NOOP); @@ -233,12 +208,12 @@ intel_emit_post_sync_nonzero_flush(struct drm_i915_gem_request *req) } static int -gen6_render_ring_flush(struct drm_i915_gem_request *req, - u32 invalidate_domains, u32 flush_domains) +gen6_render_ring_flush(struct drm_i915_gem_request *req, u32 mode) { - struct intel_engine_cs *ring = req->ring; + struct intel_ring *ring = req->ring; + u32 scratch_addr = + i915_ggtt_offset(req->engine->scratch) + 2 * CACHELINE_BYTES; u32 flags = 0; - u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES; int ret; /* Force SNB workarounds for PIPE_CONTROL flushes */ @@ -250,7 +225,7 @@ gen6_render_ring_flush(struct drm_i915_gem_request *req, * number of bits based on the write domains has little performance * impact. */ - if (flush_domains) { + if (mode & EMIT_FLUSH) { flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; /* @@ -259,7 +234,7 @@ gen6_render_ring_flush(struct drm_i915_gem_request *req, */ flags |= PIPE_CONTROL_CS_STALL; } - if (invalidate_domains) { + if (mode & EMIT_INVALIDATE) { flags |= PIPE_CONTROL_TLB_INVALIDATE; flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE; flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; @@ -288,7 +263,7 @@ gen6_render_ring_flush(struct drm_i915_gem_request *req, static int gen7_render_ring_cs_stall_wa(struct drm_i915_gem_request *req) { - struct intel_engine_cs *ring = req->ring; + struct intel_ring *ring = req->ring; int ret; ret = intel_ring_begin(req, 4); @@ -296,8 +271,9 @@ gen7_render_ring_cs_stall_wa(struct drm_i915_gem_request *req) return ret; intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(4)); - intel_ring_emit(ring, PIPE_CONTROL_CS_STALL | - PIPE_CONTROL_STALL_AT_SCOREBOARD); + intel_ring_emit(ring, + PIPE_CONTROL_CS_STALL | + PIPE_CONTROL_STALL_AT_SCOREBOARD); intel_ring_emit(ring, 0); intel_ring_emit(ring, 0); intel_ring_advance(ring); @@ -306,12 +282,12 @@ gen7_render_ring_cs_stall_wa(struct drm_i915_gem_request *req) } static int -gen7_render_ring_flush(struct drm_i915_gem_request *req, - u32 invalidate_domains, u32 flush_domains) +gen7_render_ring_flush(struct drm_i915_gem_request *req, u32 mode) { - struct intel_engine_cs *ring = req->ring; + struct intel_ring *ring = req->ring; + u32 scratch_addr = + i915_ggtt_offset(req->engine->scratch) + 2 * CACHELINE_BYTES; u32 flags = 0; - u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES; int ret; /* @@ -328,13 +304,13 @@ gen7_render_ring_flush(struct drm_i915_gem_request *req, * number of bits based on the write domains has little performance * impact. */ - if (flush_domains) { + if (mode & EMIT_FLUSH) { flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; flags |= PIPE_CONTROL_DC_FLUSH_ENABLE; flags |= PIPE_CONTROL_FLUSH_ENABLE; } - if (invalidate_domains) { + if (mode & EMIT_INVALIDATE) { flags |= PIPE_CONTROL_TLB_INVALIDATE; flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE; flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; @@ -373,7 +349,7 @@ static int gen8_emit_pipe_control(struct drm_i915_gem_request *req, u32 flags, u32 scratch_addr) { - struct intel_engine_cs *ring = req->ring; + struct intel_ring *ring = req->ring; int ret; ret = intel_ring_begin(req, 6); @@ -392,22 +368,22 @@ gen8_emit_pipe_control(struct drm_i915_gem_request *req, } static int -gen8_render_ring_flush(struct drm_i915_gem_request *req, - u32 invalidate_domains, u32 flush_domains) +gen8_render_ring_flush(struct drm_i915_gem_request *req, u32 mode) { + u32 scratch_addr = + i915_ggtt_offset(req->engine->scratch) + 2 * CACHELINE_BYTES; u32 flags = 0; - u32 scratch_addr = req->ring->scratch.gtt_offset + 2 * CACHELINE_BYTES; int ret; flags |= PIPE_CONTROL_CS_STALL; - if (flush_domains) { + if (mode & EMIT_FLUSH) { flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; flags |= PIPE_CONTROL_DC_FLUSH_ENABLE; flags |= PIPE_CONTROL_FLUSH_ENABLE; } - if (invalidate_domains) { + if (mode & EMIT_INVALIDATE) { flags |= PIPE_CONTROL_TLB_INVALIDATE; flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE; flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; @@ -429,51 +405,43 @@ gen8_render_ring_flush(struct drm_i915_gem_request *req, return gen8_emit_pipe_control(req, flags, scratch_addr); } -static void ring_write_tail(struct intel_engine_cs *ring, - u32 value) -{ - struct drm_i915_private *dev_priv = ring->dev->dev_private; - I915_WRITE_TAIL(ring, value); -} - -u64 intel_ring_get_active_head(struct intel_engine_cs *ring) +u64 intel_engine_get_active_head(struct intel_engine_cs *engine) { - struct drm_i915_private *dev_priv = ring->dev->dev_private; + struct drm_i915_private *dev_priv = engine->i915; u64 acthd; - if (INTEL_INFO(ring->dev)->gen >= 8) - acthd = I915_READ64_2x32(RING_ACTHD(ring->mmio_base), - RING_ACTHD_UDW(ring->mmio_base)); - else if (INTEL_INFO(ring->dev)->gen >= 4) - acthd = I915_READ(RING_ACTHD(ring->mmio_base)); + if (INTEL_GEN(dev_priv) >= 8) + acthd = I915_READ64_2x32(RING_ACTHD(engine->mmio_base), + RING_ACTHD_UDW(engine->mmio_base)); + else if (INTEL_GEN(dev_priv) >= 4) + acthd = I915_READ(RING_ACTHD(engine->mmio_base)); else acthd = I915_READ(ACTHD); return acthd; } -static void ring_setup_phys_status_page(struct intel_engine_cs *ring) +static void ring_setup_phys_status_page(struct intel_engine_cs *engine) { - struct drm_i915_private *dev_priv = ring->dev->dev_private; + struct drm_i915_private *dev_priv = engine->i915; u32 addr; addr = dev_priv->status_page_dmah->busaddr; - if (INTEL_INFO(ring->dev)->gen >= 4) + if (INTEL_GEN(dev_priv) >= 4) addr |= (dev_priv->status_page_dmah->busaddr >> 28) & 0xf0; I915_WRITE(HWS_PGA, addr); } -static void intel_ring_setup_status_page(struct intel_engine_cs *ring) +static void intel_ring_setup_status_page(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = ring->dev->dev_private; + struct drm_i915_private *dev_priv = engine->i915; i915_reg_t mmio; /* The ring status page addresses are no longer next to the rest of * the ring registers as of gen7. */ - if (IS_GEN7(dev)) { - switch (ring->id) { + if (IS_GEN7(dev_priv)) { + switch (engine->id) { case RCS: mmio = RENDER_HWS_PGA_GEN7; break; @@ -492,14 +460,14 @@ static void intel_ring_setup_status_page(struct intel_engine_cs *ring) mmio = VEBOX_HWS_PGA_GEN7; break; } - } else if (IS_GEN6(ring->dev)) { - mmio = RING_HWS_PGA_GEN6(ring->mmio_base); + } else if (IS_GEN6(dev_priv)) { + mmio = RING_HWS_PGA_GEN6(engine->mmio_base); } else { /* XXX: gen8 returns to sanity */ - mmio = RING_HWS_PGA(ring->mmio_base); + mmio = RING_HWS_PGA(engine->mmio_base); } - I915_WRITE(mmio, (u32)ring->status_page.gfx_addr); + I915_WRITE(mmio, engine->status_page.ggtt_offset); POSTING_READ(mmio); /* @@ -509,129 +477,136 @@ static void intel_ring_setup_status_page(struct intel_engine_cs *ring) * arises: do we still need this and if so how should we go about * invalidating the TLB? */ - if (INTEL_INFO(dev)->gen >= 6 && INTEL_INFO(dev)->gen < 8) { - i915_reg_t reg = RING_INSTPM(ring->mmio_base); + if (IS_GEN(dev_priv, 6, 7)) { + i915_reg_t reg = RING_INSTPM(engine->mmio_base); /* ring should be idle before issuing a sync flush*/ - WARN_ON((I915_READ_MODE(ring) & MODE_IDLE) == 0); + WARN_ON((I915_READ_MODE(engine) & MODE_IDLE) == 0); I915_WRITE(reg, _MASKED_BIT_ENABLE(INSTPM_TLB_INVALIDATE | INSTPM_SYNC_FLUSH)); - if (wait_for((I915_READ(reg) & INSTPM_SYNC_FLUSH) == 0, - 1000)) + if (intel_wait_for_register(dev_priv, + reg, INSTPM_SYNC_FLUSH, 0, + 1000)) DRM_ERROR("%s: wait for SyncFlush to complete for TLB invalidation timed out\n", - ring->name); + engine->name); } } -static bool stop_ring(struct intel_engine_cs *ring) +static bool stop_ring(struct intel_engine_cs *engine) { - struct drm_i915_private *dev_priv = to_i915(ring->dev); + struct drm_i915_private *dev_priv = engine->i915; - if (!IS_GEN2(ring->dev)) { - I915_WRITE_MODE(ring, _MASKED_BIT_ENABLE(STOP_RING)); - if (wait_for((I915_READ_MODE(ring) & MODE_IDLE) != 0, 1000)) { - DRM_ERROR("%s : timed out trying to stop ring\n", ring->name); + if (INTEL_GEN(dev_priv) > 2) { + I915_WRITE_MODE(engine, _MASKED_BIT_ENABLE(STOP_RING)); + if (intel_wait_for_register(dev_priv, + RING_MI_MODE(engine->mmio_base), + MODE_IDLE, + MODE_IDLE, + 1000)) { + DRM_ERROR("%s : timed out trying to stop ring\n", + engine->name); /* Sometimes we observe that the idle flag is not * set even though the ring is empty. So double * check before giving up. */ - if (I915_READ_HEAD(ring) != I915_READ_TAIL(ring)) + if (I915_READ_HEAD(engine) != I915_READ_TAIL(engine)) return false; } } - I915_WRITE_CTL(ring, 0); - I915_WRITE_HEAD(ring, 0); - ring->write_tail(ring, 0); + I915_WRITE_CTL(engine, 0); + I915_WRITE_HEAD(engine, 0); + I915_WRITE_TAIL(engine, 0); - if (!IS_GEN2(ring->dev)) { - (void)I915_READ_CTL(ring); - I915_WRITE_MODE(ring, _MASKED_BIT_DISABLE(STOP_RING)); + if (INTEL_GEN(dev_priv) > 2) { + (void)I915_READ_CTL(engine); + I915_WRITE_MODE(engine, _MASKED_BIT_DISABLE(STOP_RING)); } - return (I915_READ_HEAD(ring) & HEAD_ADDR) == 0; + return (I915_READ_HEAD(engine) & HEAD_ADDR) == 0; } -static int init_ring_common(struct intel_engine_cs *ring) +static int init_ring_common(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_ringbuffer *ringbuf = ring->buffer; - struct drm_i915_gem_object *obj = ringbuf->obj; + struct drm_i915_private *dev_priv = engine->i915; + struct intel_ring *ring = engine->buffer; int ret = 0; intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); - if (!stop_ring(ring)) { + if (!stop_ring(engine)) { /* G45 ring initialization often fails to reset head to zero */ DRM_DEBUG_KMS("%s head not reset to zero " "ctl %08x head %08x tail %08x start %08x\n", - ring->name, - I915_READ_CTL(ring), - I915_READ_HEAD(ring), - I915_READ_TAIL(ring), - I915_READ_START(ring)); + engine->name, + I915_READ_CTL(engine), + I915_READ_HEAD(engine), + I915_READ_TAIL(engine), + I915_READ_START(engine)); - if (!stop_ring(ring)) { + if (!stop_ring(engine)) { DRM_ERROR("failed to set %s head to zero " "ctl %08x head %08x tail %08x start %08x\n", - ring->name, - I915_READ_CTL(ring), - I915_READ_HEAD(ring), - I915_READ_TAIL(ring), - I915_READ_START(ring)); + engine->name, + I915_READ_CTL(engine), + I915_READ_HEAD(engine), + I915_READ_TAIL(engine), + I915_READ_START(engine)); ret = -EIO; goto out; } } - if (I915_NEED_GFX_HWS(dev)) - intel_ring_setup_status_page(ring); + if (HWS_NEEDS_PHYSICAL(dev_priv)) + ring_setup_phys_status_page(engine); else - ring_setup_phys_status_page(ring); + intel_ring_setup_status_page(engine); + + intel_engine_reset_breadcrumbs(engine); /* Enforce ordering by reading HEAD register back */ - I915_READ_HEAD(ring); + I915_READ_HEAD(engine); /* Initialize the ring. This must happen _after_ we've cleared the ring * registers with the above sequence (the readback of the HEAD registers * also enforces ordering), otherwise the hw might lose the new ring * register values. */ - I915_WRITE_START(ring, i915_gem_obj_ggtt_offset(obj)); + I915_WRITE_START(engine, i915_ggtt_offset(ring->vma)); /* WaClearRingBufHeadRegAtInit:ctg,elk */ - if (I915_READ_HEAD(ring)) + if (I915_READ_HEAD(engine)) DRM_DEBUG("%s initialization failed [head=%08x], fudging\n", - ring->name, I915_READ_HEAD(ring)); - I915_WRITE_HEAD(ring, 0); - (void)I915_READ_HEAD(ring); + engine->name, I915_READ_HEAD(engine)); + + intel_ring_update_space(ring); + I915_WRITE_HEAD(engine, ring->head); + I915_WRITE_TAIL(engine, ring->tail); + (void)I915_READ_TAIL(engine); - I915_WRITE_CTL(ring, - ((ringbuf->size - PAGE_SIZE) & RING_NR_PAGES) + I915_WRITE_CTL(engine, + ((ring->size - PAGE_SIZE) & RING_NR_PAGES) | RING_VALID); /* If the head is still not zero, the ring is dead */ - if (wait_for((I915_READ_CTL(ring) & RING_VALID) != 0 && - I915_READ_START(ring) == i915_gem_obj_ggtt_offset(obj) && - (I915_READ_HEAD(ring) & HEAD_ADDR) == 0, 50)) { + if (intel_wait_for_register_fw(dev_priv, RING_CTL(engine->mmio_base), + RING_VALID, RING_VALID, + 50)) { DRM_ERROR("%s initialization failed " - "ctl %08x (valid? %d) head %08x tail %08x start %08x [expected %08lx]\n", - ring->name, - I915_READ_CTL(ring), I915_READ_CTL(ring) & RING_VALID, - I915_READ_HEAD(ring), I915_READ_TAIL(ring), - I915_READ_START(ring), (unsigned long)i915_gem_obj_ggtt_offset(obj)); + "ctl %08x (valid? %d) head %08x [%08x] tail %08x [%08x] start %08x [expected %08x]\n", + engine->name, + I915_READ_CTL(engine), + I915_READ_CTL(engine) & RING_VALID, + I915_READ_HEAD(engine), ring->head, + I915_READ_TAIL(engine), ring->tail, + I915_READ_START(engine), + i915_ggtt_offset(ring->vma)); ret = -EIO; goto out; } - ringbuf->last_retired_head = -1; - ringbuf->head = I915_READ_HEAD(ring); - ringbuf->tail = I915_READ_TAIL(ring) & TAIL_ADDR; - intel_ring_update_space(ringbuf); - - memset(&ring->hangcheck, 0, sizeof(ring->hangcheck)); + intel_engine_init_hangcheck(engine); out: intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); @@ -639,77 +614,25 @@ out: return ret; } -void -intel_fini_pipe_control(struct intel_engine_cs *ring) +static void reset_ring_common(struct intel_engine_cs *engine, + struct drm_i915_gem_request *request) { - struct drm_device *dev = ring->dev; - - if (ring->scratch.obj == NULL) - return; - - if (INTEL_INFO(dev)->gen >= 5) { - kunmap(sg_page(ring->scratch.obj->pages->sgl)); - i915_gem_object_ggtt_unpin(ring->scratch.obj); - } - - drm_gem_object_unreference(&ring->scratch.obj->base); - ring->scratch.obj = NULL; -} + struct intel_ring *ring = request->ring; -int -intel_init_pipe_control(struct intel_engine_cs *ring) -{ - int ret; - - WARN_ON(ring->scratch.obj); - - ring->scratch.obj = i915_gem_alloc_object(ring->dev, 4096); - if (ring->scratch.obj == NULL) { - DRM_ERROR("Failed to allocate seqno page\n"); - ret = -ENOMEM; - goto err; - } - - ret = i915_gem_object_set_cache_level(ring->scratch.obj, I915_CACHE_LLC); - if (ret) - goto err_unref; - - ret = i915_gem_obj_ggtt_pin(ring->scratch.obj, 4096, 0); - if (ret) - goto err_unref; - - ring->scratch.gtt_offset = i915_gem_obj_ggtt_offset(ring->scratch.obj); - ring->scratch.cpu_page = kmap(sg_page(ring->scratch.obj->pages->sgl)); - if (ring->scratch.cpu_page == NULL) { - ret = -ENOMEM; - goto err_unpin; - } - - DRM_DEBUG_DRIVER("%s pipe control offset: 0x%08x\n", - ring->name, ring->scratch.gtt_offset); - return 0; - -err_unpin: - i915_gem_object_ggtt_unpin(ring->scratch.obj); -err_unref: - drm_gem_object_unreference(&ring->scratch.obj->base); -err: - return ret; + ring->head = request->postfix; + ring->last_retired_head = -1; } static int intel_ring_workarounds_emit(struct drm_i915_gem_request *req) { + struct intel_ring *ring = req->ring; + struct i915_workarounds *w = &req->i915->workarounds; int ret, i; - struct intel_engine_cs *ring = req->ring; - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - struct i915_workarounds *w = &dev_priv->workarounds; if (w->count == 0) return 0; - ring->gpu_caches_dirty = true; - ret = intel_ring_flush_all_caches(req); + ret = req->engine->emit_flush(req, EMIT_BARRIER); if (ret) return ret; @@ -726,8 +649,7 @@ static int intel_ring_workarounds_emit(struct drm_i915_gem_request *req) intel_ring_advance(ring); - ring->gpu_caches_dirty = true; - ret = intel_ring_flush_all_caches(req); + ret = req->engine->emit_flush(req, EMIT_BARRIER); if (ret) return ret; @@ -789,26 +711,26 @@ static int wa_add(struct drm_i915_private *dev_priv, #define WA_WRITE(addr, val) WA_REG(addr, 0xffffffff, val) -static int wa_ring_whitelist_reg(struct intel_engine_cs *ring, i915_reg_t reg) +static int wa_ring_whitelist_reg(struct intel_engine_cs *engine, + i915_reg_t reg) { - struct drm_i915_private *dev_priv = ring->dev->dev_private; + struct drm_i915_private *dev_priv = engine->i915; struct i915_workarounds *wa = &dev_priv->workarounds; - const uint32_t index = wa->hw_whitelist_count[ring->id]; + const uint32_t index = wa->hw_whitelist_count[engine->id]; if (WARN_ON(index >= RING_MAX_NONPRIV_SLOTS)) return -EINVAL; - WA_WRITE(RING_FORCE_TO_NONPRIV(ring->mmio_base, index), + WA_WRITE(RING_FORCE_TO_NONPRIV(engine->mmio_base, index), i915_mmio_reg_offset(reg)); - wa->hw_whitelist_count[ring->id]++; + wa->hw_whitelist_count[engine->id]++; return 0; } -static int gen8_init_workarounds(struct intel_engine_cs *ring) +static int gen8_init_workarounds(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_private *dev_priv = engine->i915; WA_SET_BIT_MASKED(INSTPM, INSTPM_FORCE_ORDERING); @@ -857,13 +779,12 @@ static int gen8_init_workarounds(struct intel_engine_cs *ring) return 0; } -static int bdw_init_workarounds(struct intel_engine_cs *ring) +static int bdw_init_workarounds(struct intel_engine_cs *engine) { + struct drm_i915_private *dev_priv = engine->i915; int ret; - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - ret = gen8_init_workarounds(ring); + ret = gen8_init_workarounds(engine); if (ret) return ret; @@ -881,18 +802,17 @@ static int bdw_init_workarounds(struct intel_engine_cs *ring) /* WaForceContextSaveRestoreNonCoherent:bdw */ HDC_FORCE_CONTEXT_SAVE_RESTORE_NON_COHERENT | /* WaDisableFenceDestinationToSLM:bdw (pre-prod) */ - (IS_BDW_GT3(dev) ? HDC_FENCE_DEST_SLM_DISABLE : 0)); + (IS_BDW_GT3(dev_priv) ? HDC_FENCE_DEST_SLM_DISABLE : 0)); return 0; } -static int chv_init_workarounds(struct intel_engine_cs *ring) +static int chv_init_workarounds(struct intel_engine_cs *engine) { + struct drm_i915_private *dev_priv = engine->i915; int ret; - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - ret = gen8_init_workarounds(ring); + ret = gen8_init_workarounds(engine); if (ret) return ret; @@ -905,38 +825,41 @@ static int chv_init_workarounds(struct intel_engine_cs *ring) return 0; } -static int gen9_init_workarounds(struct intel_engine_cs *ring) +static int gen9_init_workarounds(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - uint32_t tmp; + struct drm_i915_private *dev_priv = engine->i915; int ret; - /* WaEnableLbsSlaRetryTimerDecrement:skl */ + /* WaConextSwitchWithConcurrentTLBInvalidate:skl,bxt,kbl */ + I915_WRITE(GEN9_CSFE_CHICKEN1_RCS, _MASKED_BIT_ENABLE(GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE)); + + /* WaEnableLbsSlaRetryTimerDecrement:skl,bxt,kbl */ I915_WRITE(BDW_SCRATCH1, I915_READ(BDW_SCRATCH1) | GEN9_LBS_SLA_RETRY_TIMER_DECREMENT_ENABLE); - /* WaDisableKillLogic:bxt,skl */ + /* WaDisableKillLogic:bxt,skl,kbl */ I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | ECOCHK_DIS_TLB); - /* WaDisablePartialInstShootdown:skl,bxt */ + /* WaClearFlowControlGpgpuContextSave:skl,bxt,kbl */ + /* WaDisablePartialInstShootdown:skl,bxt,kbl */ WA_SET_BIT_MASKED(GEN8_ROW_CHICKEN, + FLOW_CONTROL_ENABLE | PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE); - /* Syncing dependencies between camera and graphics:skl,bxt */ + /* Syncing dependencies between camera and graphics:skl,bxt,kbl */ WA_SET_BIT_MASKED(HALF_SLICE_CHICKEN3, GEN9_DISABLE_OCL_OOB_SUPPRESS_LOGIC); /* WaDisableDgMirrorFixInHalfSliceChicken5:skl,bxt */ - if (IS_SKL_REVID(dev, 0, SKL_REVID_B0) || - IS_BXT_REVID(dev, 0, BXT_REVID_A1)) + if (IS_SKL_REVID(dev_priv, 0, SKL_REVID_B0) || + IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1)) WA_CLR_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN5, GEN9_DG_MIRROR_FIX_ENABLE); /* WaSetDisablePixMaskCammingAndRhwoInCommonSliceChicken:skl,bxt */ - if (IS_SKL_REVID(dev, 0, SKL_REVID_B0) || - IS_BXT_REVID(dev, 0, BXT_REVID_A1)) { + if (IS_SKL_REVID(dev_priv, 0, SKL_REVID_B0) || + IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1)) { WA_SET_BIT_MASKED(GEN7_COMMON_SLICE_CHICKEN1, GEN9_RHWO_OPTIMIZATION_DISABLE); /* @@ -946,62 +869,88 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring) */ } - /* WaEnableYV12BugFixInHalfSliceChicken7:skl,bxt */ - if (IS_SKL_REVID(dev, SKL_REVID_C0, REVID_FOREVER) || IS_BROXTON(dev)) - WA_SET_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN7, - GEN9_ENABLE_YV12_BUGFIX); + /* WaEnableYV12BugFixInHalfSliceChicken7:skl,bxt,kbl */ + /* WaEnableSamplerGPGPUPreemptionSupport:skl,bxt,kbl */ + WA_SET_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN7, + GEN9_ENABLE_YV12_BUGFIX | + GEN9_ENABLE_GPGPU_PREEMPTION); - /* Wa4x4STCOptimizationDisable:skl,bxt */ - /* WaDisablePartialResolveInVc:skl,bxt */ + /* Wa4x4STCOptimizationDisable:skl,bxt,kbl */ + /* WaDisablePartialResolveInVc:skl,bxt,kbl */ WA_SET_BIT_MASKED(CACHE_MODE_1, (GEN8_4x4_STC_OPTIMIZATION_DISABLE | GEN9_PARTIAL_RESOLVE_IN_VC_DISABLE)); - /* WaCcsTlbPrefetchDisable:skl,bxt */ + /* WaCcsTlbPrefetchDisable:skl,bxt,kbl */ WA_CLR_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN5, GEN9_CCS_TLB_PREFETCH_ENABLE); /* WaDisableMaskBasedCammingInRCC:skl,bxt */ - if (IS_SKL_REVID(dev, SKL_REVID_C0, SKL_REVID_C0) || - IS_BXT_REVID(dev, 0, BXT_REVID_A1)) + if (IS_SKL_REVID(dev_priv, SKL_REVID_C0, SKL_REVID_C0) || + IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1)) WA_SET_BIT_MASKED(SLICE_ECO_CHICKEN0, PIXEL_MASK_CAMMING_DISABLE); - /* WaForceContextSaveRestoreNonCoherent:skl,bxt */ - tmp = HDC_FORCE_CONTEXT_SAVE_RESTORE_NON_COHERENT; - if (IS_SKL_REVID(dev, SKL_REVID_F0, REVID_FOREVER) || - IS_BXT_REVID(dev, BXT_REVID_B0, REVID_FOREVER)) - tmp |= HDC_FORCE_CSR_NON_COHERENT_OVR_DISABLE; - WA_SET_BIT_MASKED(HDC_CHICKEN0, tmp); + /* WaForceContextSaveRestoreNonCoherent:skl,bxt,kbl */ + WA_SET_BIT_MASKED(HDC_CHICKEN0, + HDC_FORCE_CONTEXT_SAVE_RESTORE_NON_COHERENT | + HDC_FORCE_CSR_NON_COHERENT_OVR_DISABLE); + + /* WaForceEnableNonCoherent and WaDisableHDCInvalidation are + * both tied to WaForceContextSaveRestoreNonCoherent + * in some hsds for skl. We keep the tie for all gen9. The + * documentation is a bit hazy and so we want to get common behaviour, + * even though there is no clear evidence we would need both on kbl/bxt. + * This area has been source of system hangs so we play it safe + * and mimic the skl regardless of what bspec says. + * + * Use Force Non-Coherent whenever executing a 3D context. This + * is a workaround for a possible hang in the unlikely event + * a TLB invalidation occurs during a PSD flush. + */ - /* WaDisableSamplerPowerBypassForSOPingPong:skl,bxt */ - if (IS_SKYLAKE(dev) || IS_BXT_REVID(dev, 0, BXT_REVID_B0)) + /* WaForceEnableNonCoherent:skl,bxt,kbl */ + WA_SET_BIT_MASKED(HDC_CHICKEN0, + HDC_FORCE_NON_COHERENT); + + /* WaDisableHDCInvalidation:skl,bxt,kbl */ + I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | + BDW_DISABLE_HDC_INVALIDATION); + + /* WaDisableSamplerPowerBypassForSOPingPong:skl,bxt,kbl */ + if (IS_SKYLAKE(dev_priv) || + IS_KABYLAKE(dev_priv) || + IS_BXT_REVID(dev_priv, 0, BXT_REVID_B0)) WA_SET_BIT_MASKED(HALF_SLICE_CHICKEN3, GEN8_SAMPLER_POWER_BYPASS_DIS); - /* WaDisableSTUnitPowerOptimization:skl,bxt */ + /* WaDisableSTUnitPowerOptimization:skl,bxt,kbl */ WA_SET_BIT_MASKED(HALF_SLICE_CHICKEN2, GEN8_ST_PO_DISABLE); - /* WaOCLCoherentLineFlush:skl,bxt */ + /* WaOCLCoherentLineFlush:skl,bxt,kbl */ I915_WRITE(GEN8_L3SQCREG4, (I915_READ(GEN8_L3SQCREG4) | GEN8_LQSC_FLUSH_COHERENT_LINES)); - /* WaEnablePreemptionGranularityControlByUMD:skl,bxt */ - ret= wa_ring_whitelist_reg(ring, GEN8_CS_CHICKEN1); + /* WaVFEStateAfterPipeControlwithMediaStateClear:skl,bxt */ + ret = wa_ring_whitelist_reg(engine, GEN9_CTX_PREEMPT_REG); + if (ret) + return ret; + + /* WaEnablePreemptionGranularityControlByUMD:skl,bxt,kbl */ + ret= wa_ring_whitelist_reg(engine, GEN8_CS_CHICKEN1); if (ret) return ret; - /* WaAllowUMDToModifyHDCChicken1:skl,bxt */ - ret = wa_ring_whitelist_reg(ring, GEN8_HDC_CHICKEN1); + /* WaAllowUMDToModifyHDCChicken1:skl,bxt,kbl */ + ret = wa_ring_whitelist_reg(engine, GEN8_HDC_CHICKEN1); if (ret) return ret; return 0; } -static int skl_tune_iz_hashing(struct intel_engine_cs *ring) +static int skl_tune_iz_hashing(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_private *dev_priv = engine->i915; u8 vals[3] = { 0, 0, 0 }; unsigned int i; @@ -1012,7 +961,7 @@ static int skl_tune_iz_hashing(struct intel_engine_cs *ring) * Only consider slices where one, and only one, subslice has 7 * EUs */ - if (!is_power_of_2(dev_priv->info.subslice_7eu[i])) + if (!is_power_of_2(INTEL_INFO(dev_priv)->sseu.subslice_7eu[i])) continue; /* @@ -1021,7 +970,7 @@ static int skl_tune_iz_hashing(struct intel_engine_cs *ring) * * -> 0 <= ss <= 3; */ - ss = ffs(dev_priv->info.subslice_7eu[i]) - 1; + ss = ffs(INTEL_INFO(dev_priv)->sseu.subslice_7eu[i]) - 1; vals[i] = 3 - ss; } @@ -1040,13 +989,12 @@ static int skl_tune_iz_hashing(struct intel_engine_cs *ring) return 0; } -static int skl_init_workarounds(struct intel_engine_cs *ring) +static int skl_init_workarounds(struct intel_engine_cs *engine) { + struct drm_i915_private *dev_priv = engine->i915; int ret; - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - ret = gen9_init_workarounds(ring); + ret = gen9_init_workarounds(engine); if (ret) return ret; @@ -1055,12 +1003,12 @@ static int skl_init_workarounds(struct intel_engine_cs *ring) * until D0 which is the default case so this is equivalent to * !WaDisablePerCtxtPreemptionGranularityControl:skl */ - if (IS_SKL_REVID(dev, SKL_REVID_E0, REVID_FOREVER)) { + if (IS_SKL_REVID(dev_priv, SKL_REVID_E0, REVID_FOREVER)) { I915_WRITE(GEN7_FF_SLICE_CS_CHICKEN1, _MASKED_BIT_ENABLE(GEN9_FFSC_PERCTX_PREEMPT_CTRL)); } - if (IS_SKL_REVID(dev, 0, SKL_REVID_D0)) { + if (IS_SKL_REVID(dev_priv, 0, SKL_REVID_E0)) { /* WaDisableChickenBitTSGBarrierAckForFFSliceCS:skl */ I915_WRITE(FF_SLICE_CS_CHICKEN2, _MASKED_BIT_ENABLE(GEN9_TSG_BARRIER_ACK_DISABLE)); @@ -1069,75 +1017,66 @@ static int skl_init_workarounds(struct intel_engine_cs *ring) /* GEN8_L3SQCREG4 has a dependency with WA batch so any new changes * involving this register should also be added to WA batch as required. */ - if (IS_SKL_REVID(dev, 0, SKL_REVID_E0)) + if (IS_SKL_REVID(dev_priv, 0, SKL_REVID_E0)) /* WaDisableLSQCROPERFforOCL:skl */ I915_WRITE(GEN8_L3SQCREG4, I915_READ(GEN8_L3SQCREG4) | GEN8_LQSC_RO_PERF_DIS); /* WaEnableGapsTsvCreditFix:skl */ - if (IS_SKL_REVID(dev, SKL_REVID_C0, REVID_FOREVER)) { + if (IS_SKL_REVID(dev_priv, SKL_REVID_C0, REVID_FOREVER)) { I915_WRITE(GEN8_GARBCNTL, (I915_READ(GEN8_GARBCNTL) | GEN9_GAPS_TSV_CREDIT_DISABLE)); } /* WaDisablePowerCompilerClockGating:skl */ - if (IS_SKL_REVID(dev, SKL_REVID_B0, SKL_REVID_B0)) + if (IS_SKL_REVID(dev_priv, SKL_REVID_B0, SKL_REVID_B0)) WA_SET_BIT_MASKED(HIZ_CHICKEN, BDW_HIZ_POWER_COMPILER_CLOCK_GATING_DISABLE); - /* This is tied to WaForceContextSaveRestoreNonCoherent */ - if (IS_SKL_REVID(dev, 0, REVID_FOREVER)) { - /* - *Use Force Non-Coherent whenever executing a 3D context. This - * is a workaround for a possible hang in the unlikely event - * a TLB invalidation occurs during a PSD flush. - */ - /* WaForceEnableNonCoherent:skl */ - WA_SET_BIT_MASKED(HDC_CHICKEN0, - HDC_FORCE_NON_COHERENT); - - /* WaDisableHDCInvalidation:skl */ - I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | - BDW_DISABLE_HDC_INVALIDATION); - } - /* WaBarrierPerformanceFixDisable:skl */ - if (IS_SKL_REVID(dev, SKL_REVID_C0, SKL_REVID_D0)) + if (IS_SKL_REVID(dev_priv, SKL_REVID_C0, SKL_REVID_D0)) WA_SET_BIT_MASKED(HDC_CHICKEN0, HDC_FENCE_DEST_SLM_DISABLE | HDC_BARRIER_PERFORMANCE_DISABLE); /* WaDisableSbeCacheDispatchPortSharing:skl */ - if (IS_SKL_REVID(dev, 0, SKL_REVID_F0)) + if (IS_SKL_REVID(dev_priv, 0, SKL_REVID_F0)) WA_SET_BIT_MASKED( GEN7_HALF_SLICE_CHICKEN1, GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE); + /* WaDisableGafsUnitClkGating:skl */ + WA_SET_BIT(GEN7_UCGCTL4, GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE); + + /* WaInPlaceDecompressionHang:skl */ + if (IS_SKL_REVID(dev_priv, SKL_REVID_H0, REVID_FOREVER)) + WA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA, + GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS); + /* WaDisableLSQCROPERFforOCL:skl */ - ret = wa_ring_whitelist_reg(ring, GEN8_L3SQCREG4); + ret = wa_ring_whitelist_reg(engine, GEN8_L3SQCREG4); if (ret) return ret; - return skl_tune_iz_hashing(ring); + return skl_tune_iz_hashing(engine); } -static int bxt_init_workarounds(struct intel_engine_cs *ring) +static int bxt_init_workarounds(struct intel_engine_cs *engine) { + struct drm_i915_private *dev_priv = engine->i915; int ret; - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - ret = gen9_init_workarounds(ring); + ret = gen9_init_workarounds(engine); if (ret) return ret; /* WaStoreMultiplePTEenable:bxt */ /* This is a requirement according to Hardware specification */ - if (IS_BXT_REVID(dev, 0, BXT_REVID_A1)) + if (IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1)) I915_WRITE(TILECTL, I915_READ(TILECTL) | TILECTL_TLBPF); /* WaSetClckGatingDisableMedia:bxt */ - if (IS_BXT_REVID(dev, 0, BXT_REVID_A1)) { + if (IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1)) { I915_WRITE(GEN7_MISCCPCTL, (I915_READ(GEN7_MISCCPCTL) & ~GEN8_DOP_CLOCK_GATE_MEDIA_ENABLE)); } @@ -1146,8 +1085,14 @@ static int bxt_init_workarounds(struct intel_engine_cs *ring) WA_SET_BIT_MASKED(GEN8_ROW_CHICKEN, STALL_DOP_GATING_DISABLE); + /* WaDisablePooledEuLoadBalancingFix:bxt */ + if (IS_BXT_REVID(dev_priv, BXT_REVID_B0, REVID_FOREVER)) { + WA_SET_BIT_MASKED(FF_SLICE_CS_CHICKEN2, + GEN9_POOLED_EU_LOAD_BALANCING_FIX_DISABLE); + } + /* WaDisableSbeCacheDispatchPortSharing:bxt */ - if (IS_BXT_REVID(dev, 0, BXT_REVID_B0)) { + if (IS_BXT_REVID(dev_priv, 0, BXT_REVID_B0)) { WA_SET_BIT_MASKED( GEN7_HALF_SLICE_CHICKEN1, GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE); @@ -1157,54 +1102,126 @@ static int bxt_init_workarounds(struct intel_engine_cs *ring) /* WaDisableObjectLevelPreemptionForInstancedDraw:bxt */ /* WaDisableObjectLevelPreemtionForInstanceId:bxt */ /* WaDisableLSQCROPERFforOCL:bxt */ - if (IS_BXT_REVID(dev, 0, BXT_REVID_A1)) { - ret = wa_ring_whitelist_reg(ring, GEN9_CS_DEBUG_MODE1); + if (IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1)) { + ret = wa_ring_whitelist_reg(engine, GEN9_CS_DEBUG_MODE1); if (ret) return ret; - ret = wa_ring_whitelist_reg(ring, GEN8_L3SQCREG4); + ret = wa_ring_whitelist_reg(engine, GEN8_L3SQCREG4); if (ret) return ret; } + /* WaProgramL3SqcReg1DefaultForPerf:bxt */ + if (IS_BXT_REVID(dev_priv, BXT_REVID_B0, REVID_FOREVER)) + I915_WRITE(GEN8_L3SQCREG1, L3_GENERAL_PRIO_CREDITS(62) | + L3_HIGH_PRIO_CREDITS(2)); + + /* WaToEnableHwFixForPushConstHWBug:bxt */ + if (IS_BXT_REVID(dev_priv, BXT_REVID_C0, REVID_FOREVER)) + WA_SET_BIT_MASKED(COMMON_SLICE_CHICKEN2, + GEN8_SBE_DISABLE_REPLAY_BUF_OPTIMIZATION); + + /* WaInPlaceDecompressionHang:bxt */ + if (IS_BXT_REVID(dev_priv, BXT_REVID_C0, REVID_FOREVER)) + WA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA, + GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS); + + return 0; +} + +static int kbl_init_workarounds(struct intel_engine_cs *engine) +{ + struct drm_i915_private *dev_priv = engine->i915; + int ret; + + ret = gen9_init_workarounds(engine); + if (ret) + return ret; + + /* WaEnableGapsTsvCreditFix:kbl */ + I915_WRITE(GEN8_GARBCNTL, (I915_READ(GEN8_GARBCNTL) | + GEN9_GAPS_TSV_CREDIT_DISABLE)); + + /* WaDisableDynamicCreditSharing:kbl */ + if (IS_KBL_REVID(dev_priv, 0, KBL_REVID_B0)) + WA_SET_BIT(GAMT_CHKN_BIT_REG, + GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING); + + /* WaDisableFenceDestinationToSLM:kbl (pre-prod) */ + if (IS_KBL_REVID(dev_priv, KBL_REVID_A0, KBL_REVID_A0)) + WA_SET_BIT_MASKED(HDC_CHICKEN0, + HDC_FENCE_DEST_SLM_DISABLE); + + /* GEN8_L3SQCREG4 has a dependency with WA batch so any new changes + * involving this register should also be added to WA batch as required. + */ + if (IS_KBL_REVID(dev_priv, 0, KBL_REVID_E0)) + /* WaDisableLSQCROPERFforOCL:kbl */ + I915_WRITE(GEN8_L3SQCREG4, I915_READ(GEN8_L3SQCREG4) | + GEN8_LQSC_RO_PERF_DIS); + + /* WaToEnableHwFixForPushConstHWBug:kbl */ + if (IS_KBL_REVID(dev_priv, KBL_REVID_C0, REVID_FOREVER)) + WA_SET_BIT_MASKED(COMMON_SLICE_CHICKEN2, + GEN8_SBE_DISABLE_REPLAY_BUF_OPTIMIZATION); + + /* WaDisableGafsUnitClkGating:kbl */ + WA_SET_BIT(GEN7_UCGCTL4, GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE); + + /* WaDisableSbeCacheDispatchPortSharing:kbl */ + WA_SET_BIT_MASKED( + GEN7_HALF_SLICE_CHICKEN1, + GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE); + + /* WaInPlaceDecompressionHang:kbl */ + WA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA, + GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS); + + /* WaDisableLSQCROPERFforOCL:kbl */ + ret = wa_ring_whitelist_reg(engine, GEN8_L3SQCREG4); + if (ret) + return ret; + return 0; } -int init_workarounds_ring(struct intel_engine_cs *ring) +int init_workarounds_ring(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_private *dev_priv = engine->i915; - WARN_ON(ring->id != RCS); + WARN_ON(engine->id != RCS); dev_priv->workarounds.count = 0; dev_priv->workarounds.hw_whitelist_count[RCS] = 0; - if (IS_BROADWELL(dev)) - return bdw_init_workarounds(ring); + if (IS_BROADWELL(dev_priv)) + return bdw_init_workarounds(engine); + + if (IS_CHERRYVIEW(dev_priv)) + return chv_init_workarounds(engine); - if (IS_CHERRYVIEW(dev)) - return chv_init_workarounds(ring); + if (IS_SKYLAKE(dev_priv)) + return skl_init_workarounds(engine); - if (IS_SKYLAKE(dev)) - return skl_init_workarounds(ring); + if (IS_BROXTON(dev_priv)) + return bxt_init_workarounds(engine); - if (IS_BROXTON(dev)) - return bxt_init_workarounds(ring); + if (IS_KABYLAKE(dev_priv)) + return kbl_init_workarounds(engine); return 0; } -static int init_render_ring(struct intel_engine_cs *ring) +static int init_render_ring(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - int ret = init_ring_common(ring); + struct drm_i915_private *dev_priv = engine->i915; + int ret = init_ring_common(engine); if (ret) return ret; /* WaTimedSingleVertexDispatch:cl,bw,ctg,elk,ilk,snb */ - if (INTEL_INFO(dev)->gen >= 4 && INTEL_INFO(dev)->gen < 7) + if (IS_GEN(dev_priv, 4, 6)) I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(VS_TIMER_DISPATCH)); /* We need to disable the AsyncFlip performance optimisations in order @@ -1213,22 +1230,22 @@ static int init_render_ring(struct intel_engine_cs *ring) * * WaDisableAsyncFlipPerfMode:snb,ivb,hsw,vlv */ - if (INTEL_INFO(dev)->gen >= 6 && INTEL_INFO(dev)->gen < 8) + if (IS_GEN(dev_priv, 6, 7)) I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(ASYNC_FLIP_PERF_DISABLE)); /* Required for the hardware to program scanline values for waiting */ /* WaEnableFlushTlbInvalidationMode:snb */ - if (INTEL_INFO(dev)->gen == 6) + if (IS_GEN6(dev_priv)) I915_WRITE(GFX_MODE, _MASKED_BIT_ENABLE(GFX_TLB_INVALIDATE_EXPLICIT)); /* WaBCSVCSTlbInvalidationMode:ivb,vlv,hsw */ - if (IS_GEN7(dev)) + if (IS_GEN7(dev_priv)) I915_WRITE(GFX_MODE_GEN7, _MASKED_BIT_ENABLE(GFX_TLB_INVALIDATE_EXPLICIT) | _MASKED_BIT_ENABLE(GFX_REPLAY_MODE)); - if (IS_GEN6(dev)) { + if (IS_GEN6(dev_priv)) { /* From the Sandybridge PRM, volume 1 part 3, page 24: * "If this bit is set, STCunit will have LRA as replacement * policy. [...] This bit must be reset. LRA replacement @@ -1238,182 +1255,207 @@ static int init_render_ring(struct intel_engine_cs *ring) _MASKED_BIT_DISABLE(CM0_STC_EVICT_DISABLE_LRA_SNB)); } - if (INTEL_INFO(dev)->gen >= 6 && INTEL_INFO(dev)->gen < 8) + if (IS_GEN(dev_priv, 6, 7)) I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_FORCE_ORDERING)); - if (HAS_L3_DPF(dev)) - I915_WRITE_IMR(ring, ~GT_PARITY_ERROR(dev)); + if (INTEL_INFO(dev_priv)->gen >= 6) + I915_WRITE_IMR(engine, ~engine->irq_keep_mask); - return init_workarounds_ring(ring); + return init_workarounds_ring(engine); } -static void render_ring_cleanup(struct intel_engine_cs *ring) +static void render_ring_cleanup(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_private *dev_priv = engine->i915; - if (dev_priv->semaphore_obj) { - i915_gem_object_ggtt_unpin(dev_priv->semaphore_obj); - drm_gem_object_unreference(&dev_priv->semaphore_obj->base); - dev_priv->semaphore_obj = NULL; - } - - intel_fini_pipe_control(ring); + i915_vma_unpin_and_release(&dev_priv->semaphore); } -static int gen8_rcs_signal(struct drm_i915_gem_request *signaller_req, - unsigned int num_dwords) +static int gen8_rcs_signal(struct drm_i915_gem_request *req) { -#define MBOX_UPDATE_DWORDS 8 - struct intel_engine_cs *signaller = signaller_req->ring; - struct drm_device *dev = signaller->dev; - struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_ring *ring = req->ring; + struct drm_i915_private *dev_priv = req->i915; struct intel_engine_cs *waiter; - int i, ret, num_rings; - - num_rings = hweight32(INTEL_INFO(dev)->ring_mask); - num_dwords += (num_rings-1) * MBOX_UPDATE_DWORDS; -#undef MBOX_UPDATE_DWORDS + enum intel_engine_id id; + int ret, num_rings; - ret = intel_ring_begin(signaller_req, num_dwords); + num_rings = INTEL_INFO(dev_priv)->num_rings; + ret = intel_ring_begin(req, (num_rings-1) * 8); if (ret) return ret; - for_each_ring(waiter, dev_priv, i) { - u32 seqno; - u64 gtt_offset = signaller->semaphore.signal_ggtt[i]; + for_each_engine_id(waiter, dev_priv, id) { + u64 gtt_offset = req->engine->semaphore.signal_ggtt[id]; if (gtt_offset == MI_SEMAPHORE_SYNC_INVALID) continue; - seqno = i915_gem_request_get_seqno(signaller_req); - intel_ring_emit(signaller, GFX_OP_PIPE_CONTROL(6)); - intel_ring_emit(signaller, PIPE_CONTROL_GLOBAL_GTT_IVB | - PIPE_CONTROL_QW_WRITE | - PIPE_CONTROL_FLUSH_ENABLE); - intel_ring_emit(signaller, lower_32_bits(gtt_offset)); - intel_ring_emit(signaller, upper_32_bits(gtt_offset)); - intel_ring_emit(signaller, seqno); - intel_ring_emit(signaller, 0); - intel_ring_emit(signaller, MI_SEMAPHORE_SIGNAL | - MI_SEMAPHORE_TARGET(waiter->id)); - intel_ring_emit(signaller, 0); + intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(6)); + intel_ring_emit(ring, + PIPE_CONTROL_GLOBAL_GTT_IVB | + PIPE_CONTROL_QW_WRITE | + PIPE_CONTROL_CS_STALL); + intel_ring_emit(ring, lower_32_bits(gtt_offset)); + intel_ring_emit(ring, upper_32_bits(gtt_offset)); + intel_ring_emit(ring, req->fence.seqno); + intel_ring_emit(ring, 0); + intel_ring_emit(ring, + MI_SEMAPHORE_SIGNAL | + MI_SEMAPHORE_TARGET(waiter->hw_id)); + intel_ring_emit(ring, 0); } + intel_ring_advance(ring); return 0; } -static int gen8_xcs_signal(struct drm_i915_gem_request *signaller_req, - unsigned int num_dwords) +static int gen8_xcs_signal(struct drm_i915_gem_request *req) { -#define MBOX_UPDATE_DWORDS 6 - struct intel_engine_cs *signaller = signaller_req->ring; - struct drm_device *dev = signaller->dev; - struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_ring *ring = req->ring; + struct drm_i915_private *dev_priv = req->i915; struct intel_engine_cs *waiter; - int i, ret, num_rings; - - num_rings = hweight32(INTEL_INFO(dev)->ring_mask); - num_dwords += (num_rings-1) * MBOX_UPDATE_DWORDS; -#undef MBOX_UPDATE_DWORDS + enum intel_engine_id id; + int ret, num_rings; - ret = intel_ring_begin(signaller_req, num_dwords); + num_rings = INTEL_INFO(dev_priv)->num_rings; + ret = intel_ring_begin(req, (num_rings-1) * 6); if (ret) return ret; - for_each_ring(waiter, dev_priv, i) { - u32 seqno; - u64 gtt_offset = signaller->semaphore.signal_ggtt[i]; + for_each_engine_id(waiter, dev_priv, id) { + u64 gtt_offset = req->engine->semaphore.signal_ggtt[id]; if (gtt_offset == MI_SEMAPHORE_SYNC_INVALID) continue; - seqno = i915_gem_request_get_seqno(signaller_req); - intel_ring_emit(signaller, (MI_FLUSH_DW + 1) | - MI_FLUSH_DW_OP_STOREDW); - intel_ring_emit(signaller, lower_32_bits(gtt_offset) | - MI_FLUSH_DW_USE_GTT); - intel_ring_emit(signaller, upper_32_bits(gtt_offset)); - intel_ring_emit(signaller, seqno); - intel_ring_emit(signaller, MI_SEMAPHORE_SIGNAL | - MI_SEMAPHORE_TARGET(waiter->id)); - intel_ring_emit(signaller, 0); + intel_ring_emit(ring, + (MI_FLUSH_DW + 1) | MI_FLUSH_DW_OP_STOREDW); + intel_ring_emit(ring, + lower_32_bits(gtt_offset) | + MI_FLUSH_DW_USE_GTT); + intel_ring_emit(ring, upper_32_bits(gtt_offset)); + intel_ring_emit(ring, req->fence.seqno); + intel_ring_emit(ring, + MI_SEMAPHORE_SIGNAL | + MI_SEMAPHORE_TARGET(waiter->hw_id)); + intel_ring_emit(ring, 0); } + intel_ring_advance(ring); return 0; } -static int gen6_signal(struct drm_i915_gem_request *signaller_req, - unsigned int num_dwords) +static int gen6_signal(struct drm_i915_gem_request *req) { - struct intel_engine_cs *signaller = signaller_req->ring; - struct drm_device *dev = signaller->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_engine_cs *useless; - int i, ret, num_rings; + struct intel_ring *ring = req->ring; + struct drm_i915_private *dev_priv = req->i915; + struct intel_engine_cs *engine; + int ret, num_rings; -#define MBOX_UPDATE_DWORDS 3 - num_rings = hweight32(INTEL_INFO(dev)->ring_mask); - num_dwords += round_up((num_rings-1) * MBOX_UPDATE_DWORDS, 2); -#undef MBOX_UPDATE_DWORDS - - ret = intel_ring_begin(signaller_req, num_dwords); + num_rings = INTEL_INFO(dev_priv)->num_rings; + ret = intel_ring_begin(req, round_up((num_rings-1) * 3, 2)); if (ret) return ret; - for_each_ring(useless, dev_priv, i) { - i915_reg_t mbox_reg = signaller->semaphore.mbox.signal[i]; + for_each_engine(engine, dev_priv) { + i915_reg_t mbox_reg; - if (i915_mmio_reg_valid(mbox_reg)) { - u32 seqno = i915_gem_request_get_seqno(signaller_req); + if (!(BIT(engine->hw_id) & GEN6_SEMAPHORES_MASK)) + continue; - intel_ring_emit(signaller, MI_LOAD_REGISTER_IMM(1)); - intel_ring_emit_reg(signaller, mbox_reg); - intel_ring_emit(signaller, seqno); + mbox_reg = req->engine->semaphore.mbox.signal[engine->hw_id]; + if (i915_mmio_reg_valid(mbox_reg)) { + intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1)); + intel_ring_emit_reg(ring, mbox_reg); + intel_ring_emit(ring, req->fence.seqno); } } /* If num_dwords was rounded, make sure the tail pointer is correct */ if (num_rings % 2 == 0) - intel_ring_emit(signaller, MI_NOOP); + intel_ring_emit(ring, MI_NOOP); + intel_ring_advance(ring); + + return 0; +} + +static void i9xx_submit_request(struct drm_i915_gem_request *request) +{ + struct drm_i915_private *dev_priv = request->i915; + + I915_WRITE_TAIL(request->engine, + intel_ring_offset(request->ring, request->tail)); +} + +static int i9xx_emit_request(struct drm_i915_gem_request *req) +{ + struct intel_ring *ring = req->ring; + int ret; + + ret = intel_ring_begin(req, 4); + if (ret) + return ret; + + intel_ring_emit(ring, MI_STORE_DWORD_INDEX); + intel_ring_emit(ring, I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT); + intel_ring_emit(ring, req->fence.seqno); + intel_ring_emit(ring, MI_USER_INTERRUPT); + intel_ring_advance(ring); + + req->tail = ring->tail; return 0; } /** - * gen6_add_request - Update the semaphore mailbox registers + * gen6_sema_emit_request - Update the semaphore mailbox registers * * @request - request to write to the ring * * Update the mailbox registers in the *other* rings with the current seqno. * This acts like a signal in the canonical semaphore. */ -static int -gen6_add_request(struct drm_i915_gem_request *req) +static int gen6_sema_emit_request(struct drm_i915_gem_request *req) { - struct intel_engine_cs *ring = req->ring; int ret; - if (ring->semaphore.signal) - ret = ring->semaphore.signal(req, 4); - else - ret = intel_ring_begin(req, 4); + ret = req->engine->semaphore.signal(req); + if (ret) + return ret; + + return i9xx_emit_request(req); +} +static int gen8_render_emit_request(struct drm_i915_gem_request *req) +{ + struct intel_engine_cs *engine = req->engine; + struct intel_ring *ring = req->ring; + int ret; + + if (engine->semaphore.signal) { + ret = engine->semaphore.signal(req); + if (ret) + return ret; + } + + ret = intel_ring_begin(req, 8); if (ret) return ret; - intel_ring_emit(ring, MI_STORE_DWORD_INDEX); - intel_ring_emit(ring, I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT); + intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(6)); + intel_ring_emit(ring, (PIPE_CONTROL_GLOBAL_GTT_IVB | + PIPE_CONTROL_CS_STALL | + PIPE_CONTROL_QW_WRITE)); + intel_ring_emit(ring, intel_hws_seqno_address(engine)); + intel_ring_emit(ring, 0); intel_ring_emit(ring, i915_gem_request_get_seqno(req)); + /* We're thrashing one dword of HWS. */ + intel_ring_emit(ring, 0); intel_ring_emit(ring, MI_USER_INTERRUPT); - __intel_ring_advance(ring); + intel_ring_emit(ring, MI_NOOP); + intel_ring_advance(ring); - return 0; -} + req->tail = ring->tail; -static inline bool i915_gem_has_seqno_wrapped(struct drm_device *dev, - u32 seqno) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - return dev_priv->last_seqno < seqno; + return 0; } /** @@ -1425,279 +1467,166 @@ static inline bool i915_gem_has_seqno_wrapped(struct drm_device *dev, */ static int -gen8_ring_sync(struct drm_i915_gem_request *waiter_req, - struct intel_engine_cs *signaller, - u32 seqno) +gen8_ring_sync_to(struct drm_i915_gem_request *req, + struct drm_i915_gem_request *signal) { - struct intel_engine_cs *waiter = waiter_req->ring; - struct drm_i915_private *dev_priv = waiter->dev->dev_private; + struct intel_ring *ring = req->ring; + struct drm_i915_private *dev_priv = req->i915; + u64 offset = GEN8_WAIT_OFFSET(req->engine, signal->engine->id); + struct i915_hw_ppgtt *ppgtt; int ret; - ret = intel_ring_begin(waiter_req, 4); + ret = intel_ring_begin(req, 4); if (ret) return ret; - intel_ring_emit(waiter, MI_SEMAPHORE_WAIT | - MI_SEMAPHORE_GLOBAL_GTT | - MI_SEMAPHORE_POLL | - MI_SEMAPHORE_SAD_GTE_SDD); - intel_ring_emit(waiter, seqno); - intel_ring_emit(waiter, - lower_32_bits(GEN8_WAIT_OFFSET(waiter, signaller->id))); - intel_ring_emit(waiter, - upper_32_bits(GEN8_WAIT_OFFSET(waiter, signaller->id))); - intel_ring_advance(waiter); + intel_ring_emit(ring, + MI_SEMAPHORE_WAIT | + MI_SEMAPHORE_GLOBAL_GTT | + MI_SEMAPHORE_SAD_GTE_SDD); + intel_ring_emit(ring, signal->fence.seqno); + intel_ring_emit(ring, lower_32_bits(offset)); + intel_ring_emit(ring, upper_32_bits(offset)); + intel_ring_advance(ring); + + /* When the !RCS engines idle waiting upon a semaphore, they lose their + * pagetables and we must reload them before executing the batch. + * We do this on the i915_switch_context() following the wait and + * before the dispatch. + */ + ppgtt = req->ctx->ppgtt; + if (ppgtt && req->engine->id != RCS) + ppgtt->pd_dirty_rings |= intel_engine_flag(req->engine); return 0; } static int -gen6_ring_sync(struct drm_i915_gem_request *waiter_req, - struct intel_engine_cs *signaller, - u32 seqno) +gen6_ring_sync_to(struct drm_i915_gem_request *req, + struct drm_i915_gem_request *signal) { - struct intel_engine_cs *waiter = waiter_req->ring; + struct intel_ring *ring = req->ring; u32 dw1 = MI_SEMAPHORE_MBOX | MI_SEMAPHORE_COMPARE | MI_SEMAPHORE_REGISTER; - u32 wait_mbox = signaller->semaphore.mbox.wait[waiter->id]; + u32 wait_mbox = signal->engine->semaphore.mbox.wait[req->engine->hw_id]; int ret; - /* Throughout all of the GEM code, seqno passed implies our current - * seqno is >= the last seqno executed. However for hardware the - * comparison is strictly greater than. - */ - seqno -= 1; - WARN_ON(wait_mbox == MI_SEMAPHORE_SYNC_INVALID); - ret = intel_ring_begin(waiter_req, 4); + ret = intel_ring_begin(req, 4); if (ret) return ret; - /* If seqno wrap happened, omit the wait with no-ops */ - if (likely(!i915_gem_has_seqno_wrapped(waiter->dev, seqno))) { - intel_ring_emit(waiter, dw1 | wait_mbox); - intel_ring_emit(waiter, seqno); - intel_ring_emit(waiter, 0); - intel_ring_emit(waiter, MI_NOOP); - } else { - intel_ring_emit(waiter, MI_NOOP); - intel_ring_emit(waiter, MI_NOOP); - intel_ring_emit(waiter, MI_NOOP); - intel_ring_emit(waiter, MI_NOOP); - } - intel_ring_advance(waiter); + intel_ring_emit(ring, dw1 | wait_mbox); + /* Throughout all of the GEM code, seqno passed implies our current + * seqno is >= the last seqno executed. However for hardware the + * comparison is strictly greater than. + */ + intel_ring_emit(ring, signal->fence.seqno - 1); + intel_ring_emit(ring, 0); + intel_ring_emit(ring, MI_NOOP); + intel_ring_advance(ring); return 0; } -#define PIPE_CONTROL_FLUSH(ring__, addr__) \ -do { \ - intel_ring_emit(ring__, GFX_OP_PIPE_CONTROL(4) | PIPE_CONTROL_QW_WRITE | \ - PIPE_CONTROL_DEPTH_STALL); \ - intel_ring_emit(ring__, (addr__) | PIPE_CONTROL_GLOBAL_GTT); \ - intel_ring_emit(ring__, 0); \ - intel_ring_emit(ring__, 0); \ -} while (0) - -static int -pc_render_add_request(struct drm_i915_gem_request *req) +static void +gen5_seqno_barrier(struct intel_engine_cs *engine) { - struct intel_engine_cs *ring = req->ring; - u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES; - int ret; - - /* For Ironlake, MI_USER_INTERRUPT was deprecated and apparently - * incoherent with writes to memory, i.e. completely fubar, - * so we need to use PIPE_NOTIFY instead. + /* MI_STORE are internally buffered by the GPU and not flushed + * either by MI_FLUSH or SyncFlush or any other combination of + * MI commands. + * + * "Only the submission of the store operation is guaranteed. + * The write result will be complete (coherent) some time later + * (this is practically a finite period but there is no guaranteed + * latency)." * - * However, we also need to workaround the qword write - * incoherence by flushing the 6 PIPE_NOTIFY buffers out to - * memory before requesting an interrupt. + * Empirically, we observe that we need a delay of at least 75us to + * be sure that the seqno write is visible by the CPU. */ - ret = intel_ring_begin(req, 32); - if (ret) - return ret; - - intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(4) | PIPE_CONTROL_QW_WRITE | - PIPE_CONTROL_WRITE_FLUSH | - PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE); - intel_ring_emit(ring, ring->scratch.gtt_offset | PIPE_CONTROL_GLOBAL_GTT); - intel_ring_emit(ring, i915_gem_request_get_seqno(req)); - intel_ring_emit(ring, 0); - PIPE_CONTROL_FLUSH(ring, scratch_addr); - scratch_addr += 2 * CACHELINE_BYTES; /* write to separate cachelines */ - PIPE_CONTROL_FLUSH(ring, scratch_addr); - scratch_addr += 2 * CACHELINE_BYTES; - PIPE_CONTROL_FLUSH(ring, scratch_addr); - scratch_addr += 2 * CACHELINE_BYTES; - PIPE_CONTROL_FLUSH(ring, scratch_addr); - scratch_addr += 2 * CACHELINE_BYTES; - PIPE_CONTROL_FLUSH(ring, scratch_addr); - scratch_addr += 2 * CACHELINE_BYTES; - PIPE_CONTROL_FLUSH(ring, scratch_addr); - - intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(4) | PIPE_CONTROL_QW_WRITE | - PIPE_CONTROL_WRITE_FLUSH | - PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE | - PIPE_CONTROL_NOTIFY); - intel_ring_emit(ring, ring->scratch.gtt_offset | PIPE_CONTROL_GLOBAL_GTT); - intel_ring_emit(ring, i915_gem_request_get_seqno(req)); - intel_ring_emit(ring, 0); - __intel_ring_advance(ring); - - return 0; + usleep_range(125, 250); } -static u32 -gen6_ring_get_seqno(struct intel_engine_cs *ring, bool lazy_coherency) +static void +gen6_seqno_barrier(struct intel_engine_cs *engine) { + struct drm_i915_private *dev_priv = engine->i915; + /* Workaround to force correct ordering between irq and seqno writes on * ivb (and maybe also on snb) by reading from a CS register (like - * ACTHD) before reading the status page. */ - if (!lazy_coherency) { - struct drm_i915_private *dev_priv = ring->dev->dev_private; - POSTING_READ(RING_ACTHD(ring->mmio_base)); - } - - return intel_read_status_page(ring, I915_GEM_HWS_INDEX); -} - -static u32 -ring_get_seqno(struct intel_engine_cs *ring, bool lazy_coherency) -{ - return intel_read_status_page(ring, I915_GEM_HWS_INDEX); + * ACTHD) before reading the status page. + * + * Note that this effectively stalls the read by the time it takes to + * do a memory transaction, which more or less ensures that the write + * from the GPU has sufficient time to invalidate the CPU cacheline. + * Alternatively we could delay the interrupt from the CS ring to give + * the write time to land, but that would incur a delay after every + * batch i.e. much more frequent than a delay when waiting for the + * interrupt (with the same net latency). + * + * Also note that to prevent whole machine hangs on gen7, we have to + * take the spinlock to guard against concurrent cacheline access. + */ + spin_lock_irq(&dev_priv->uncore.lock); + POSTING_READ_FW(RING_ACTHD(engine->mmio_base)); + spin_unlock_irq(&dev_priv->uncore.lock); } static void -ring_set_seqno(struct intel_engine_cs *ring, u32 seqno) +gen5_irq_enable(struct intel_engine_cs *engine) { - intel_write_status_page(ring, I915_GEM_HWS_INDEX, seqno); -} - -static u32 -pc_render_get_seqno(struct intel_engine_cs *ring, bool lazy_coherency) -{ - return ring->scratch.cpu_page[0]; + gen5_enable_gt_irq(engine->i915, engine->irq_enable_mask); } static void -pc_render_set_seqno(struct intel_engine_cs *ring, u32 seqno) +gen5_irq_disable(struct intel_engine_cs *engine) { - ring->scratch.cpu_page[0] = seqno; -} - -static bool -gen5_ring_get_irq(struct intel_engine_cs *ring) -{ - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long flags; - - if (WARN_ON(!intel_irqs_enabled(dev_priv))) - return false; - - spin_lock_irqsave(&dev_priv->irq_lock, flags); - if (ring->irq_refcount++ == 0) - gen5_enable_gt_irq(dev_priv, ring->irq_enable_mask); - spin_unlock_irqrestore(&dev_priv->irq_lock, flags); - - return true; + gen5_disable_gt_irq(engine->i915, engine->irq_enable_mask); } static void -gen5_ring_put_irq(struct intel_engine_cs *ring) -{ - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long flags; - - spin_lock_irqsave(&dev_priv->irq_lock, flags); - if (--ring->irq_refcount == 0) - gen5_disable_gt_irq(dev_priv, ring->irq_enable_mask); - spin_unlock_irqrestore(&dev_priv->irq_lock, flags); -} - -static bool -i9xx_ring_get_irq(struct intel_engine_cs *ring) +i9xx_irq_enable(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long flags; - - if (!intel_irqs_enabled(dev_priv)) - return false; + struct drm_i915_private *dev_priv = engine->i915; - spin_lock_irqsave(&dev_priv->irq_lock, flags); - if (ring->irq_refcount++ == 0) { - dev_priv->irq_mask &= ~ring->irq_enable_mask; - I915_WRITE(IMR, dev_priv->irq_mask); - POSTING_READ(IMR); - } - spin_unlock_irqrestore(&dev_priv->irq_lock, flags); - - return true; + dev_priv->irq_mask &= ~engine->irq_enable_mask; + I915_WRITE(IMR, dev_priv->irq_mask); + POSTING_READ_FW(RING_IMR(engine->mmio_base)); } static void -i9xx_ring_put_irq(struct intel_engine_cs *ring) +i9xx_irq_disable(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long flags; + struct drm_i915_private *dev_priv = engine->i915; - spin_lock_irqsave(&dev_priv->irq_lock, flags); - if (--ring->irq_refcount == 0) { - dev_priv->irq_mask |= ring->irq_enable_mask; - I915_WRITE(IMR, dev_priv->irq_mask); - POSTING_READ(IMR); - } - spin_unlock_irqrestore(&dev_priv->irq_lock, flags); + dev_priv->irq_mask |= engine->irq_enable_mask; + I915_WRITE(IMR, dev_priv->irq_mask); } -static bool -i8xx_ring_get_irq(struct intel_engine_cs *ring) +static void +i8xx_irq_enable(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long flags; - - if (!intel_irqs_enabled(dev_priv)) - return false; - - spin_lock_irqsave(&dev_priv->irq_lock, flags); - if (ring->irq_refcount++ == 0) { - dev_priv->irq_mask &= ~ring->irq_enable_mask; - I915_WRITE16(IMR, dev_priv->irq_mask); - POSTING_READ16(IMR); - } - spin_unlock_irqrestore(&dev_priv->irq_lock, flags); + struct drm_i915_private *dev_priv = engine->i915; - return true; + dev_priv->irq_mask &= ~engine->irq_enable_mask; + I915_WRITE16(IMR, dev_priv->irq_mask); + POSTING_READ16(RING_IMR(engine->mmio_base)); } static void -i8xx_ring_put_irq(struct intel_engine_cs *ring) +i8xx_irq_disable(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long flags; + struct drm_i915_private *dev_priv = engine->i915; - spin_lock_irqsave(&dev_priv->irq_lock, flags); - if (--ring->irq_refcount == 0) { - dev_priv->irq_mask |= ring->irq_enable_mask; - I915_WRITE16(IMR, dev_priv->irq_mask); - POSTING_READ16(IMR); - } - spin_unlock_irqrestore(&dev_priv->irq_lock, flags); + dev_priv->irq_mask |= engine->irq_enable_mask; + I915_WRITE16(IMR, dev_priv->irq_mask); } static int -bsd_ring_flush(struct drm_i915_gem_request *req, - u32 invalidate_domains, - u32 flush_domains) +bsd_ring_flush(struct drm_i915_gem_request *req, u32 mode) { - struct intel_engine_cs *ring = req->ring; + struct intel_ring *ring = req->ring; int ret; ret = intel_ring_begin(req, 2); @@ -1710,155 +1639,69 @@ bsd_ring_flush(struct drm_i915_gem_request *req, return 0; } -static int -i9xx_add_request(struct drm_i915_gem_request *req) +static void +gen6_irq_enable(struct intel_engine_cs *engine) { - struct intel_engine_cs *ring = req->ring; - int ret; - - ret = intel_ring_begin(req, 4); - if (ret) - return ret; + struct drm_i915_private *dev_priv = engine->i915; - intel_ring_emit(ring, MI_STORE_DWORD_INDEX); - intel_ring_emit(ring, I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT); - intel_ring_emit(ring, i915_gem_request_get_seqno(req)); - intel_ring_emit(ring, MI_USER_INTERRUPT); - __intel_ring_advance(ring); - - return 0; + I915_WRITE_IMR(engine, + ~(engine->irq_enable_mask | + engine->irq_keep_mask)); + gen5_enable_gt_irq(dev_priv, engine->irq_enable_mask); } -static bool -gen6_ring_get_irq(struct intel_engine_cs *ring) +static void +gen6_irq_disable(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long flags; + struct drm_i915_private *dev_priv = engine->i915; - if (WARN_ON(!intel_irqs_enabled(dev_priv))) - return false; - - spin_lock_irqsave(&dev_priv->irq_lock, flags); - if (ring->irq_refcount++ == 0) { - if (HAS_L3_DPF(dev) && ring->id == RCS) - I915_WRITE_IMR(ring, - ~(ring->irq_enable_mask | - GT_PARITY_ERROR(dev))); - else - I915_WRITE_IMR(ring, ~ring->irq_enable_mask); - gen5_enable_gt_irq(dev_priv, ring->irq_enable_mask); - } - spin_unlock_irqrestore(&dev_priv->irq_lock, flags); - - return true; + I915_WRITE_IMR(engine, ~engine->irq_keep_mask); + gen5_disable_gt_irq(dev_priv, engine->irq_enable_mask); } static void -gen6_ring_put_irq(struct intel_engine_cs *ring) +hsw_vebox_irq_enable(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long flags; + struct drm_i915_private *dev_priv = engine->i915; - spin_lock_irqsave(&dev_priv->irq_lock, flags); - if (--ring->irq_refcount == 0) { - if (HAS_L3_DPF(dev) && ring->id == RCS) - I915_WRITE_IMR(ring, ~GT_PARITY_ERROR(dev)); - else - I915_WRITE_IMR(ring, ~0); - gen5_disable_gt_irq(dev_priv, ring->irq_enable_mask); - } - spin_unlock_irqrestore(&dev_priv->irq_lock, flags); + I915_WRITE_IMR(engine, ~engine->irq_enable_mask); + gen6_enable_pm_irq(dev_priv, engine->irq_enable_mask); } -static bool -hsw_vebox_get_irq(struct intel_engine_cs *ring) +static void +hsw_vebox_irq_disable(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long flags; - - if (WARN_ON(!intel_irqs_enabled(dev_priv))) - return false; - - spin_lock_irqsave(&dev_priv->irq_lock, flags); - if (ring->irq_refcount++ == 0) { - I915_WRITE_IMR(ring, ~ring->irq_enable_mask); - gen6_enable_pm_irq(dev_priv, ring->irq_enable_mask); - } - spin_unlock_irqrestore(&dev_priv->irq_lock, flags); + struct drm_i915_private *dev_priv = engine->i915; - return true; + I915_WRITE_IMR(engine, ~0); + gen6_disable_pm_irq(dev_priv, engine->irq_enable_mask); } static void -hsw_vebox_put_irq(struct intel_engine_cs *ring) +gen8_irq_enable(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long flags; + struct drm_i915_private *dev_priv = engine->i915; - spin_lock_irqsave(&dev_priv->irq_lock, flags); - if (--ring->irq_refcount == 0) { - I915_WRITE_IMR(ring, ~0); - gen6_disable_pm_irq(dev_priv, ring->irq_enable_mask); - } - spin_unlock_irqrestore(&dev_priv->irq_lock, flags); + I915_WRITE_IMR(engine, + ~(engine->irq_enable_mask | + engine->irq_keep_mask)); + POSTING_READ_FW(RING_IMR(engine->mmio_base)); } -static bool -gen8_ring_get_irq(struct intel_engine_cs *ring) +static void +gen8_irq_disable(struct intel_engine_cs *engine) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long flags; - - if (WARN_ON(!intel_irqs_enabled(dev_priv))) - return false; + struct drm_i915_private *dev_priv = engine->i915; - spin_lock_irqsave(&dev_priv->irq_lock, flags); - if (ring->irq_refcount++ == 0) { - if (HAS_L3_DPF(dev) && ring->id == RCS) { - I915_WRITE_IMR(ring, - ~(ring->irq_enable_mask | - GT_RENDER_L3_PARITY_ERROR_INTERRUPT)); - } else { - I915_WRITE_IMR(ring, ~ring->irq_enable_mask); - } - POSTING_READ(RING_IMR(ring->mmio_base)); - } - spin_unlock_irqrestore(&dev_priv->irq_lock, flags); - - return true; -} - -static void -gen8_ring_put_irq(struct intel_engine_cs *ring) -{ - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long flags; - - spin_lock_irqsave(&dev_priv->irq_lock, flags); - if (--ring->irq_refcount == 0) { - if (HAS_L3_DPF(dev) && ring->id == RCS) { - I915_WRITE_IMR(ring, - ~GT_RENDER_L3_PARITY_ERROR_INTERRUPT); - } else { - I915_WRITE_IMR(ring, ~0); - } - POSTING_READ(RING_IMR(ring->mmio_base)); - } - spin_unlock_irqrestore(&dev_priv->irq_lock, flags); + I915_WRITE_IMR(engine, ~engine->irq_keep_mask); } static int -i965_dispatch_execbuffer(struct drm_i915_gem_request *req, - u64 offset, u32 length, - unsigned dispatch_flags) +i965_emit_bb_start(struct drm_i915_gem_request *req, + u64 offset, u32 length, + unsigned int dispatch_flags) { - struct intel_engine_cs *ring = req->ring; + struct intel_ring *ring = req->ring; int ret; ret = intel_ring_begin(req, 2); @@ -1881,12 +1724,12 @@ i965_dispatch_execbuffer(struct drm_i915_gem_request *req, #define I830_TLB_ENTRIES (2) #define I830_WA_SIZE max(I830_TLB_ENTRIES*4096, I830_BATCH_LIMIT) static int -i830_dispatch_execbuffer(struct drm_i915_gem_request *req, - u64 offset, u32 len, - unsigned dispatch_flags) +i830_emit_bb_start(struct drm_i915_gem_request *req, + u64 offset, u32 len, + unsigned int dispatch_flags) { - struct intel_engine_cs *ring = req->ring; - u32 cs_offset = ring->scratch.gtt_offset; + struct intel_ring *ring = req->ring; + u32 cs_offset = i915_ggtt_offset(req->engine->scratch); int ret; ret = intel_ring_begin(req, 6); @@ -1915,7 +1758,8 @@ i830_dispatch_execbuffer(struct drm_i915_gem_request *req, * stumbles over its tlb invalidation bug) ... */ intel_ring_emit(ring, SRC_COPY_BLT_CMD | BLT_WRITE_RGBA); - intel_ring_emit(ring, BLT_DEPTH_32 | BLT_ROP_SRC_COPY | 4096); + intel_ring_emit(ring, + BLT_DEPTH_32 | BLT_ROP_SRC_COPY | 4096); intel_ring_emit(ring, DIV_ROUND_UP(len, 4096) << 16 | 4096); intel_ring_emit(ring, cs_offset); intel_ring_emit(ring, 4096); @@ -1942,11 +1786,11 @@ i830_dispatch_execbuffer(struct drm_i915_gem_request *req, } static int -i915_dispatch_execbuffer(struct drm_i915_gem_request *req, - u64 offset, u32 len, - unsigned dispatch_flags) +i915_emit_bb_start(struct drm_i915_gem_request *req, + u64 offset, u32 len, + unsigned int dispatch_flags) { - struct intel_engine_cs *ring = req->ring; + struct intel_ring *ring = req->ring; int ret; ret = intel_ring_begin(req, 2); @@ -1961,226 +1805,198 @@ i915_dispatch_execbuffer(struct drm_i915_gem_request *req, return 0; } -static void cleanup_phys_status_page(struct intel_engine_cs *ring) +static void cleanup_phys_status_page(struct intel_engine_cs *engine) { - struct drm_i915_private *dev_priv = to_i915(ring->dev); + struct drm_i915_private *dev_priv = engine->i915; if (!dev_priv->status_page_dmah) return; - drm_pci_free(ring->dev, dev_priv->status_page_dmah); - ring->status_page.page_addr = NULL; + drm_pci_free(&dev_priv->drm, dev_priv->status_page_dmah); + engine->status_page.page_addr = NULL; } -static void cleanup_status_page(struct intel_engine_cs *ring) +static void cleanup_status_page(struct intel_engine_cs *engine) { - struct drm_i915_gem_object *obj; + struct i915_vma *vma; - obj = ring->status_page.obj; - if (obj == NULL) + vma = fetch_and_zero(&engine->status_page.vma); + if (!vma) return; - kunmap(sg_page(obj->pages->sgl)); - i915_gem_object_ggtt_unpin(obj); - drm_gem_object_unreference(&obj->base); - ring->status_page.obj = NULL; + i915_vma_unpin(vma); + i915_gem_object_unpin_map(vma->obj); + i915_vma_put(vma); } -static int init_status_page(struct intel_engine_cs *ring) +static int init_status_page(struct intel_engine_cs *engine) { - struct drm_i915_gem_object *obj = ring->status_page.obj; - - if (obj == NULL) { - unsigned flags; - int ret; - - obj = i915_gem_alloc_object(ring->dev, 4096); - if (obj == NULL) { - DRM_ERROR("Failed to allocate status page\n"); - return -ENOMEM; - } - - ret = i915_gem_object_set_cache_level(obj, I915_CACHE_LLC); - if (ret) - goto err_unref; - - flags = 0; - if (!HAS_LLC(ring->dev)) - /* On g33, we cannot place HWS above 256MiB, so - * restrict its pinning to the low mappable arena. - * Though this restriction is not documented for - * gen4, gen5, or byt, they also behave similarly - * and hang if the HWS is placed at the top of the - * GTT. To generalise, it appears that all !llc - * platforms have issues with us placing the HWS - * above the mappable region (even though we never - * actualy map it). - */ - flags |= PIN_MAPPABLE; - ret = i915_gem_obj_ggtt_pin(obj, 4096, flags); - if (ret) { -err_unref: - drm_gem_object_unreference(&obj->base); - return ret; - } + struct drm_i915_gem_object *obj; + struct i915_vma *vma; + unsigned int flags; + int ret; - ring->status_page.obj = obj; + obj = i915_gem_object_create(&engine->i915->drm, 4096); + if (IS_ERR(obj)) { + DRM_ERROR("Failed to allocate status page\n"); + return PTR_ERR(obj); } - ring->status_page.gfx_addr = i915_gem_obj_ggtt_offset(obj); - ring->status_page.page_addr = kmap(sg_page(obj->pages->sgl)); - memset(ring->status_page.page_addr, 0, PAGE_SIZE); - - DRM_DEBUG_DRIVER("%s hws offset: 0x%08x\n", - ring->name, ring->status_page.gfx_addr); - - return 0; -} - -static int init_phys_status_page(struct intel_engine_cs *ring) -{ - struct drm_i915_private *dev_priv = ring->dev->dev_private; + ret = i915_gem_object_set_cache_level(obj, I915_CACHE_LLC); + if (ret) + goto err; - if (!dev_priv->status_page_dmah) { - dev_priv->status_page_dmah = - drm_pci_alloc(ring->dev, PAGE_SIZE, PAGE_SIZE); - if (!dev_priv->status_page_dmah) - return -ENOMEM; + vma = i915_vma_create(obj, &engine->i915->ggtt.base, NULL); + if (IS_ERR(vma)) { + ret = PTR_ERR(vma); + goto err; } - ring->status_page.page_addr = dev_priv->status_page_dmah->vaddr; - memset(ring->status_page.page_addr, 0, PAGE_SIZE); + flags = PIN_GLOBAL; + if (!HAS_LLC(engine->i915)) + /* On g33, we cannot place HWS above 256MiB, so + * restrict its pinning to the low mappable arena. + * Though this restriction is not documented for + * gen4, gen5, or byt, they also behave similarly + * and hang if the HWS is placed at the top of the + * GTT. To generalise, it appears that all !llc + * platforms have issues with us placing the HWS + * above the mappable region (even though we never + * actualy map it). + */ + flags |= PIN_MAPPABLE; + ret = i915_vma_pin(vma, 0, 4096, flags); + if (ret) + goto err; + engine->status_page.vma = vma; + engine->status_page.ggtt_offset = i915_ggtt_offset(vma); + engine->status_page.page_addr = + i915_gem_object_pin_map(obj, I915_MAP_WB); + + DRM_DEBUG_DRIVER("%s hws offset: 0x%08x\n", + engine->name, i915_ggtt_offset(vma)); return 0; -} -void intel_unpin_ringbuffer_obj(struct intel_ringbuffer *ringbuf) -{ - if (HAS_LLC(ringbuf->obj->base.dev) && !ringbuf->obj->stolen) - vunmap(ringbuf->virtual_start); - else - iounmap(ringbuf->virtual_start); - ringbuf->virtual_start = NULL; - ringbuf->vma = NULL; - i915_gem_object_ggtt_unpin(ringbuf->obj); +err: + i915_gem_object_put(obj); + return ret; } -static u32 *vmap_obj(struct drm_i915_gem_object *obj) +static int init_phys_status_page(struct intel_engine_cs *engine) { - struct sg_page_iter sg_iter; - struct page **pages; - void *addr; - int i; - - pages = drm_malloc_ab(obj->base.size >> PAGE_SHIFT, sizeof(*pages)); - if (pages == NULL) - return NULL; + struct drm_i915_private *dev_priv = engine->i915; - i = 0; - for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, 0) - pages[i++] = sg_page_iter_page(&sg_iter); + dev_priv->status_page_dmah = + drm_pci_alloc(&dev_priv->drm, PAGE_SIZE, PAGE_SIZE); + if (!dev_priv->status_page_dmah) + return -ENOMEM; - addr = vmap(pages, i, 0, PAGE_KERNEL); - drm_free_large(pages); + engine->status_page.page_addr = dev_priv->status_page_dmah->vaddr; + memset(engine->status_page.page_addr, 0, PAGE_SIZE); - return addr; + return 0; } -int intel_pin_and_map_ringbuffer_obj(struct drm_device *dev, - struct intel_ringbuffer *ringbuf) +int intel_ring_pin(struct intel_ring *ring) { - struct drm_i915_private *dev_priv = to_i915(dev); - struct drm_i915_gem_object *obj = ringbuf->obj; /* Ring wraparound at offset 0 sometimes hangs. No idea why. */ - unsigned flags = PIN_OFFSET_BIAS | 4096; + unsigned int flags = PIN_GLOBAL | PIN_OFFSET_BIAS | 4096; + enum i915_map_type map; + struct i915_vma *vma = ring->vma; + void *addr; int ret; - if (HAS_LLC(dev_priv) && !obj->stolen) { - ret = i915_gem_obj_ggtt_pin(obj, PAGE_SIZE, flags); - if (ret) - return ret; + GEM_BUG_ON(ring->vaddr); - ret = i915_gem_object_set_to_cpu_domain(obj, true); - if (ret) { - i915_gem_object_ggtt_unpin(obj); - return ret; - } + map = HAS_LLC(ring->engine->i915) ? I915_MAP_WB : I915_MAP_WC; - ringbuf->virtual_start = vmap_obj(obj); - if (ringbuf->virtual_start == NULL) { - i915_gem_object_ggtt_unpin(obj); - return -ENOMEM; - } - } else { - ret = i915_gem_obj_ggtt_pin(obj, PAGE_SIZE, - flags | PIN_MAPPABLE); - if (ret) - return ret; + if (vma->obj->stolen) + flags |= PIN_MAPPABLE; - ret = i915_gem_object_set_to_gtt_domain(obj, true); - if (ret) { - i915_gem_object_ggtt_unpin(obj); + if (!(vma->flags & I915_VMA_GLOBAL_BIND)) { + if (flags & PIN_MAPPABLE || map == I915_MAP_WC) + ret = i915_gem_object_set_to_gtt_domain(vma->obj, true); + else + ret = i915_gem_object_set_to_cpu_domain(vma->obj, true); + if (unlikely(ret)) return ret; - } - - /* Access through the GTT requires the device to be awake. */ - assert_rpm_wakelock_held(dev_priv); - - ringbuf->virtual_start = ioremap_wc(dev_priv->gtt.mappable_base + - i915_gem_obj_ggtt_offset(obj), ringbuf->size); - if (ringbuf->virtual_start == NULL) { - i915_gem_object_ggtt_unpin(obj); - return -EINVAL; - } } - ringbuf->vma = i915_gem_obj_to_ggtt(obj); + ret = i915_vma_pin(vma, 0, PAGE_SIZE, flags); + if (unlikely(ret)) + return ret; + + if (i915_vma_is_map_and_fenceable(vma)) + addr = (void __force *)i915_vma_pin_iomap(vma); + else + addr = i915_gem_object_pin_map(vma->obj, map); + if (IS_ERR(addr)) + goto err; + ring->vaddr = addr; return 0; + +err: + i915_vma_unpin(vma); + return PTR_ERR(addr); } -static void intel_destroy_ringbuffer_obj(struct intel_ringbuffer *ringbuf) +void intel_ring_unpin(struct intel_ring *ring) { - drm_gem_object_unreference(&ringbuf->obj->base); - ringbuf->obj = NULL; + GEM_BUG_ON(!ring->vma); + GEM_BUG_ON(!ring->vaddr); + + if (i915_vma_is_map_and_fenceable(ring->vma)) + i915_vma_unpin_iomap(ring->vma); + else + i915_gem_object_unpin_map(ring->vma->obj); + ring->vaddr = NULL; + + i915_vma_unpin(ring->vma); } -static int intel_alloc_ringbuffer_obj(struct drm_device *dev, - struct intel_ringbuffer *ringbuf) +static struct i915_vma * +intel_ring_create_vma(struct drm_i915_private *dev_priv, int size) { struct drm_i915_gem_object *obj; + struct i915_vma *vma; - obj = NULL; - if (!HAS_LLC(dev)) - obj = i915_gem_object_create_stolen(dev, ringbuf->size); - if (obj == NULL) - obj = i915_gem_alloc_object(dev, ringbuf->size); - if (obj == NULL) - return -ENOMEM; + obj = i915_gem_object_create_stolen(&dev_priv->drm, size); + if (!obj) + obj = i915_gem_object_create(&dev_priv->drm, size); + if (IS_ERR(obj)) + return ERR_CAST(obj); /* mark ring buffers as read-only from GPU side by default */ obj->gt_ro = 1; - ringbuf->obj = obj; + vma = i915_vma_create(obj, &dev_priv->ggtt.base, NULL); + if (IS_ERR(vma)) + goto err; - return 0; + return vma; + +err: + i915_gem_object_put(obj); + return vma; } -struct intel_ringbuffer * -intel_engine_create_ringbuffer(struct intel_engine_cs *engine, int size) +struct intel_ring * +intel_engine_create_ring(struct intel_engine_cs *engine, int size) { - struct intel_ringbuffer *ring; - int ret; + struct intel_ring *ring; + struct i915_vma *vma; + + GEM_BUG_ON(!is_power_of_2(size)); ring = kzalloc(sizeof(*ring), GFP_KERNEL); - if (ring == NULL) { - DRM_DEBUG_DRIVER("Failed to allocate ringbuffer %s\n", - engine->name); + if (!ring) return ERR_PTR(-ENOMEM); - } - ring->ring = engine; - list_add(&ring->link, &engine->buffers); + ring->engine = engine; + + INIT_LIST_HEAD(&ring->request_list); ring->size = size; /* Workaround an erratum on the i830 which causes a hang if @@ -2188,264 +2004,266 @@ intel_engine_create_ringbuffer(struct intel_engine_cs *engine, int size) * of the buffer. */ ring->effective_size = size; - if (IS_I830(engine->dev) || IS_845G(engine->dev)) + if (IS_I830(engine->i915) || IS_845G(engine->i915)) ring->effective_size -= 2 * CACHELINE_BYTES; ring->last_retired_head = -1; intel_ring_update_space(ring); - ret = intel_alloc_ringbuffer_obj(engine->dev, ring); - if (ret) { - DRM_DEBUG_DRIVER("Failed to allocate ringbuffer %s: %d\n", - engine->name, ret); - list_del(&ring->link); + vma = intel_ring_create_vma(engine->i915, size); + if (IS_ERR(vma)) { kfree(ring); - return ERR_PTR(ret); + return ERR_CAST(vma); } + ring->vma = vma; return ring; } void -intel_ringbuffer_free(struct intel_ringbuffer *ring) +intel_ring_free(struct intel_ring *ring) { - intel_destroy_ringbuffer_obj(ring); - list_del(&ring->link); + i915_vma_put(ring->vma); kfree(ring); } -static int intel_init_ring_buffer(struct drm_device *dev, - struct intel_engine_cs *ring) +static int intel_ring_context_pin(struct i915_gem_context *ctx, + struct intel_engine_cs *engine) { - struct intel_ringbuffer *ringbuf; + struct intel_context *ce = &ctx->engine[engine->id]; int ret; - WARN_ON(ring->buffer); + lockdep_assert_held(&ctx->i915->drm.struct_mutex); - ring->dev = dev; - INIT_LIST_HEAD(&ring->active_list); - INIT_LIST_HEAD(&ring->request_list); - INIT_LIST_HEAD(&ring->execlist_queue); - INIT_LIST_HEAD(&ring->buffers); - i915_gem_batch_pool_init(dev, &ring->batch_pool); - memset(ring->semaphore.sync_seqno, 0, sizeof(ring->semaphore.sync_seqno)); + if (ce->pin_count++) + return 0; - init_waitqueue_head(&ring->irq_queue); + if (ce->state) { + ret = i915_gem_object_set_to_gtt_domain(ce->state->obj, false); + if (ret) + goto error; - ringbuf = intel_engine_create_ringbuffer(ring, 32 * PAGE_SIZE); - if (IS_ERR(ringbuf)) { - ret = PTR_ERR(ringbuf); + ret = i915_vma_pin(ce->state, 0, ctx->ggtt_alignment, + PIN_GLOBAL | PIN_HIGH); + if (ret) + goto error; + } + + /* The kernel context is only used as a placeholder for flushing the + * active context. It is never used for submitting user rendering and + * as such never requires the golden render context, and so we can skip + * emitting it when we switch to the kernel context. This is required + * as during eviction we cannot allocate and pin the renderstate in + * order to initialise the context. + */ + if (ctx == ctx->i915->kernel_context) + ce->initialised = true; + + i915_gem_context_get(ctx); + return 0; + +error: + ce->pin_count = 0; + return ret; +} + +static void intel_ring_context_unpin(struct i915_gem_context *ctx, + struct intel_engine_cs *engine) +{ + struct intel_context *ce = &ctx->engine[engine->id]; + + lockdep_assert_held(&ctx->i915->drm.struct_mutex); + + if (--ce->pin_count) + return; + + if (ce->state) + i915_vma_unpin(ce->state); + + i915_gem_context_put(ctx); +} + +static int intel_init_ring_buffer(struct intel_engine_cs *engine) +{ + struct drm_i915_private *dev_priv = engine->i915; + struct intel_ring *ring; + int ret; + + WARN_ON(engine->buffer); + + intel_engine_setup_common(engine); + + memset(engine->semaphore.sync_seqno, 0, + sizeof(engine->semaphore.sync_seqno)); + + ret = intel_engine_init_common(engine); + if (ret) + goto error; + + /* We may need to do things with the shrinker which + * require us to immediately switch back to the default + * context. This can cause a problem as pinning the + * default context also requires GTT space which may not + * be available. To avoid this we always pin the default + * context. + */ + ret = intel_ring_context_pin(dev_priv->kernel_context, engine); + if (ret) + goto error; + + ring = intel_engine_create_ring(engine, 32 * PAGE_SIZE); + if (IS_ERR(ring)) { + ret = PTR_ERR(ring); goto error; } - ring->buffer = ringbuf; - if (I915_NEED_GFX_HWS(dev)) { - ret = init_status_page(ring); + if (HWS_NEEDS_PHYSICAL(dev_priv)) { + WARN_ON(engine->id != RCS); + ret = init_phys_status_page(engine); if (ret) goto error; } else { - WARN_ON(ring->id != RCS); - ret = init_phys_status_page(ring); + ret = init_status_page(engine); if (ret) goto error; } - ret = intel_pin_and_map_ringbuffer_obj(dev, ringbuf); + ret = intel_ring_pin(ring); if (ret) { - DRM_ERROR("Failed to pin and map ringbuffer %s: %d\n", - ring->name, ret); - intel_destroy_ringbuffer_obj(ringbuf); + intel_ring_free(ring); goto error; } - - ret = i915_cmd_parser_init_ring(ring); - if (ret) - goto error; + engine->buffer = ring; return 0; error: - intel_cleanup_ring_buffer(ring); + intel_engine_cleanup(engine); return ret; } -void intel_cleanup_ring_buffer(struct intel_engine_cs *ring) +void intel_engine_cleanup(struct intel_engine_cs *engine) { struct drm_i915_private *dev_priv; - if (!intel_ring_initialized(ring)) + if (!intel_engine_initialized(engine)) return; - dev_priv = to_i915(ring->dev); + dev_priv = engine->i915; - if (ring->buffer) { - intel_stop_ring_buffer(ring); - WARN_ON(!IS_GEN2(ring->dev) && (I915_READ_MODE(ring) & MODE_IDLE) == 0); + if (engine->buffer) { + WARN_ON(INTEL_GEN(dev_priv) > 2 && + (I915_READ_MODE(engine) & MODE_IDLE) == 0); - intel_unpin_ringbuffer_obj(ring->buffer); - intel_ringbuffer_free(ring->buffer); - ring->buffer = NULL; + intel_ring_unpin(engine->buffer); + intel_ring_free(engine->buffer); + engine->buffer = NULL; } - if (ring->cleanup) - ring->cleanup(ring); + if (engine->cleanup) + engine->cleanup(engine); - if (I915_NEED_GFX_HWS(ring->dev)) { - cleanup_status_page(ring); + if (HWS_NEEDS_PHYSICAL(dev_priv)) { + WARN_ON(engine->id != RCS); + cleanup_phys_status_page(engine); } else { - WARN_ON(ring->id != RCS); - cleanup_phys_status_page(ring); + cleanup_status_page(engine); } - i915_cmd_parser_fini_ring(ring); - i915_gem_batch_pool_fini(&ring->batch_pool); - ring->dev = NULL; + intel_engine_cleanup_common(engine); + + intel_ring_context_unpin(dev_priv->kernel_context, engine); + + engine->i915 = NULL; } -static int ring_wait_for_space(struct intel_engine_cs *ring, int n) +void intel_legacy_submission_resume(struct drm_i915_private *dev_priv) { - struct intel_ringbuffer *ringbuf = ring->buffer; - struct drm_i915_gem_request *request; - unsigned space; - int ret; + struct intel_engine_cs *engine; - if (intel_ring_space(ringbuf) >= n) - return 0; + for_each_engine(engine, dev_priv) { + engine->buffer->head = engine->buffer->tail; + engine->buffer->last_retired_head = -1; + } +} - /* The whole point of reserving space is to not wait! */ - WARN_ON(ringbuf->reserved_in_use); +int intel_ring_alloc_request_extras(struct drm_i915_gem_request *request) +{ + int ret; - list_for_each_entry(request, &ring->request_list, list) { - space = __intel_ring_space(request->postfix, ringbuf->tail, - ringbuf->size); - if (space >= n) - break; - } + /* Flush enough space to reduce the likelihood of waiting after + * we start building the request - in which case we will just + * have to repeat work. + */ + request->reserved_space += LEGACY_REQUEST_SIZE; - if (WARN_ON(&request->list == &ring->request_list)) - return -ENOSPC; + request->ring = request->engine->buffer; - ret = i915_wait_request(request); + ret = intel_ring_begin(request, 0); if (ret) return ret; - ringbuf->space = space; + request->reserved_space -= LEGACY_REQUEST_SIZE; return 0; } -static void __wrap_ring_buffer(struct intel_ringbuffer *ringbuf) -{ - uint32_t __iomem *virt; - int rem = ringbuf->size - ringbuf->tail; - - virt = ringbuf->virtual_start + ringbuf->tail; - rem /= 4; - while (rem--) - iowrite32(MI_NOOP, virt++); - - ringbuf->tail = 0; - intel_ring_update_space(ringbuf); -} - -int intel_ring_idle(struct intel_engine_cs *ring) +static int wait_for_space(struct drm_i915_gem_request *req, int bytes) { - struct drm_i915_gem_request *req; + struct intel_ring *ring = req->ring; + struct drm_i915_gem_request *target; + int ret; - /* Wait upon the last request to be completed */ - if (list_empty(&ring->request_list)) + intel_ring_update_space(ring); + if (ring->space >= bytes) return 0; - req = list_entry(ring->request_list.prev, - struct drm_i915_gem_request, - list); - - /* Make sure we do not trigger any retires */ - return __i915_wait_request(req, - atomic_read(&to_i915(ring->dev)->gpu_error.reset_counter), - to_i915(ring->dev)->mm.interruptible, - NULL, NULL); -} - -int intel_ring_alloc_request_extras(struct drm_i915_gem_request *request) -{ - request->ringbuf = request->ring->buffer; - return 0; -} - -int intel_ring_reserve_space(struct drm_i915_gem_request *request) -{ /* - * The first call merely notes the reserve request and is common for - * all back ends. The subsequent localised _begin() call actually - * ensures that the reservation is available. Without the begin, if - * the request creator immediately submitted the request without - * adding any commands to it then there might not actually be - * sufficient room for the submission commands. + * Space is reserved in the ringbuffer for finalising the request, + * as that cannot be allowed to fail. During request finalisation, + * reserved_space is set to 0 to stop the overallocation and the + * assumption is that then we never need to wait (which has the + * risk of failing with EINTR). + * + * See also i915_gem_request_alloc() and i915_add_request(). */ - intel_ring_reserved_space_reserve(request->ringbuf, MIN_SPACE_FOR_ADD_REQUEST); + GEM_BUG_ON(!req->reserved_space); - return intel_ring_begin(request, 0); -} + list_for_each_entry(target, &ring->request_list, ring_link) { + unsigned space; -void intel_ring_reserved_space_reserve(struct intel_ringbuffer *ringbuf, int size) -{ - WARN_ON(ringbuf->reserved_size); - WARN_ON(ringbuf->reserved_in_use); - - ringbuf->reserved_size = size; -} - -void intel_ring_reserved_space_cancel(struct intel_ringbuffer *ringbuf) -{ - WARN_ON(ringbuf->reserved_in_use); - - ringbuf->reserved_size = 0; - ringbuf->reserved_in_use = false; -} + /* Would completion of this request free enough space? */ + space = __intel_ring_space(target->postfix, ring->tail, + ring->size); + if (space >= bytes) + break; + } -void intel_ring_reserved_space_use(struct intel_ringbuffer *ringbuf) -{ - WARN_ON(ringbuf->reserved_in_use); + if (WARN_ON(&target->ring_link == &ring->request_list)) + return -ENOSPC; - ringbuf->reserved_in_use = true; - ringbuf->reserved_tail = ringbuf->tail; -} + ret = i915_wait_request(target, + I915_WAIT_INTERRUPTIBLE | I915_WAIT_LOCKED, + NULL, NO_WAITBOOST); + if (ret) + return ret; -void intel_ring_reserved_space_end(struct intel_ringbuffer *ringbuf) -{ - WARN_ON(!ringbuf->reserved_in_use); - if (ringbuf->tail > ringbuf->reserved_tail) { - WARN(ringbuf->tail > ringbuf->reserved_tail + ringbuf->reserved_size, - "request reserved size too small: %d vs %d!\n", - ringbuf->tail - ringbuf->reserved_tail, ringbuf->reserved_size); - } else { - /* - * The ring was wrapped while the reserved space was in use. - * That means that some unknown amount of the ring tail was - * no-op filled and skipped. Thus simply adding the ring size - * to the tail and doing the above space check will not work. - * Rather than attempt to track how much tail was skipped, - * it is much simpler to say that also skipping the sanity - * check every once in a while is not a big issue. - */ - } + i915_gem_request_retire_upto(target); - ringbuf->reserved_size = 0; - ringbuf->reserved_in_use = false; + intel_ring_update_space(ring); + GEM_BUG_ON(ring->space < bytes); + return 0; } -static int __intel_ring_prepare(struct intel_engine_cs *ring, int bytes) +int intel_ring_begin(struct drm_i915_gem_request *req, int num_dwords) { - struct intel_ringbuffer *ringbuf = ring->buffer; - int remain_usable = ringbuf->effective_size - ringbuf->tail; - int remain_actual = ringbuf->size - ringbuf->tail; - int ret, total_bytes, wait_bytes = 0; + struct intel_ring *ring = req->ring; + int remain_actual = ring->size - ring->tail; + int remain_usable = ring->effective_size - ring->tail; + int bytes = num_dwords * sizeof(u32); + int total_bytes, wait_bytes; bool need_wrap = false; - if (ringbuf->reserved_in_use) - total_bytes = bytes; - else - total_bytes = bytes + ringbuf->reserved_size; + total_bytes = bytes + req->reserved_space; if (unlikely(bytes > remain_usable)) { /* @@ -2454,62 +2272,46 @@ static int __intel_ring_prepare(struct intel_engine_cs *ring, int bytes) */ wait_bytes = remain_actual + total_bytes; need_wrap = true; + } else if (unlikely(total_bytes > remain_usable)) { + /* + * The base request will fit but the reserved space + * falls off the end. So we don't need an immediate wrap + * and only need to effectively wait for the reserved + * size space from the start of ringbuffer. + */ + wait_bytes = remain_actual + req->reserved_space; } else { - if (unlikely(total_bytes > remain_usable)) { - /* - * The base request will fit but the reserved space - * falls off the end. So don't need an immediate wrap - * and only need to effectively wait for the reserved - * size space from the start of ringbuffer. - */ - wait_bytes = remain_actual + ringbuf->reserved_size; - } else if (total_bytes > ringbuf->space) { - /* No wrapping required, just waiting. */ - wait_bytes = total_bytes; - } + /* No wrapping required, just waiting. */ + wait_bytes = total_bytes; } - if (wait_bytes) { - ret = ring_wait_for_space(ring, wait_bytes); + if (wait_bytes > ring->space) { + int ret = wait_for_space(req, wait_bytes); if (unlikely(ret)) return ret; - - if (need_wrap) - __wrap_ring_buffer(ringbuf); } - return 0; -} - -int intel_ring_begin(struct drm_i915_gem_request *req, - int num_dwords) -{ - struct intel_engine_cs *ring; - struct drm_i915_private *dev_priv; - int ret; - - WARN_ON(req == NULL); - ring = req->ring; - dev_priv = ring->dev->dev_private; - - ret = i915_gem_check_wedge(&dev_priv->gpu_error, - dev_priv->mm.interruptible); - if (ret) - return ret; + if (unlikely(need_wrap)) { + GEM_BUG_ON(remain_actual > ring->space); + GEM_BUG_ON(ring->tail + remain_actual > ring->size); - ret = __intel_ring_prepare(ring, num_dwords * sizeof(uint32_t)); - if (ret) - return ret; + /* Fill the tail with MI_NOOP */ + memset(ring->vaddr + ring->tail, 0, remain_actual); + ring->tail = 0; + ring->space -= remain_actual; + } - ring->buffer->space -= num_dwords * sizeof(uint32_t); + ring->space -= bytes; + GEM_BUG_ON(ring->space < 0); return 0; } /* Align the ring tail to a cacheline boundary */ int intel_ring_cacheline_align(struct drm_i915_gem_request *req) { - struct intel_engine_cs *ring = req->ring; - int num_dwords = (ring->buffer->tail & (CACHELINE_BYTES - 1)) / sizeof(uint32_t); + struct intel_ring *ring = req->ring; + int num_dwords = + (ring->tail & (CACHELINE_BYTES - 1)) / sizeof(uint32_t); int ret; if (num_dwords == 0) @@ -2528,59 +2330,46 @@ int intel_ring_cacheline_align(struct drm_i915_gem_request *req) return 0; } -void intel_ring_init_seqno(struct intel_engine_cs *ring, u32 seqno) +static void gen6_bsd_submit_request(struct drm_i915_gem_request *request) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - - if (INTEL_INFO(dev)->gen == 6 || INTEL_INFO(dev)->gen == 7) { - I915_WRITE(RING_SYNC_0(ring->mmio_base), 0); - I915_WRITE(RING_SYNC_1(ring->mmio_base), 0); - if (HAS_VEBOX(dev)) - I915_WRITE(RING_SYNC_2(ring->mmio_base), 0); - } - - ring->set_seqno(ring, seqno); - ring->hangcheck.seqno = seqno; -} + struct drm_i915_private *dev_priv = request->i915; -static void gen6_bsd_ring_write_tail(struct intel_engine_cs *ring, - u32 value) -{ - struct drm_i915_private *dev_priv = ring->dev->dev_private; + intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); /* Every tail move must follow the sequence below */ /* Disable notification that the ring is IDLE. The GT * will then assume that it is busy and bring it out of rc6. */ - I915_WRITE(GEN6_BSD_SLEEP_PSMI_CONTROL, - _MASKED_BIT_ENABLE(GEN6_BSD_SLEEP_MSG_DISABLE)); + I915_WRITE_FW(GEN6_BSD_SLEEP_PSMI_CONTROL, + _MASKED_BIT_ENABLE(GEN6_BSD_SLEEP_MSG_DISABLE)); /* Clear the context id. Here be magic! */ - I915_WRITE64(GEN6_BSD_RNCID, 0x0); + I915_WRITE64_FW(GEN6_BSD_RNCID, 0x0); /* Wait for the ring not to be idle, i.e. for it to wake up. */ - if (wait_for((I915_READ(GEN6_BSD_SLEEP_PSMI_CONTROL) & - GEN6_BSD_SLEEP_INDICATOR) == 0, - 50)) + if (intel_wait_for_register_fw(dev_priv, + GEN6_BSD_SLEEP_PSMI_CONTROL, + GEN6_BSD_SLEEP_INDICATOR, + 0, + 50)) DRM_ERROR("timed out waiting for the BSD ring to wake up\n"); /* Now that the ring is fully powered up, update the tail */ - I915_WRITE_TAIL(ring, value); - POSTING_READ(RING_TAIL(ring->mmio_base)); + i9xx_submit_request(request); /* Let the ring send IDLE messages to the GT again, * and so let it sleep to conserve power when idle. */ - I915_WRITE(GEN6_BSD_SLEEP_PSMI_CONTROL, - _MASKED_BIT_DISABLE(GEN6_BSD_SLEEP_MSG_DISABLE)); + I915_WRITE_FW(GEN6_BSD_SLEEP_PSMI_CONTROL, + _MASKED_BIT_DISABLE(GEN6_BSD_SLEEP_MSG_DISABLE)); + + intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); } -static int gen6_bsd_ring_flush(struct drm_i915_gem_request *req, - u32 invalidate, u32 flush) +static int gen6_bsd_ring_flush(struct drm_i915_gem_request *req, u32 mode) { - struct intel_engine_cs *ring = req->ring; + struct intel_ring *ring = req->ring; uint32_t cmd; int ret; @@ -2589,7 +2378,7 @@ static int gen6_bsd_ring_flush(struct drm_i915_gem_request *req, return ret; cmd = MI_FLUSH_DW; - if (INTEL_INFO(ring->dev)->gen >= 8) + if (INTEL_GEN(req->i915) >= 8) cmd += 1; /* We always require a command barrier so that subsequent @@ -2605,12 +2394,12 @@ static int gen6_bsd_ring_flush(struct drm_i915_gem_request *req, * operation is complete. This bit is only valid when the * Post-Sync Operation field is a value of 1h or 3h." */ - if (invalidate & I915_GEM_GPU_DOMAINS) + if (mode & EMIT_INVALIDATE) cmd |= MI_INVALIDATE_TLB | MI_INVALIDATE_BSD; intel_ring_emit(ring, cmd); intel_ring_emit(ring, I915_GEM_HWS_SCRATCH_ADDR | MI_FLUSH_DW_USE_GTT); - if (INTEL_INFO(ring->dev)->gen >= 8) { + if (INTEL_GEN(req->i915) >= 8) { intel_ring_emit(ring, 0); /* upper addr */ intel_ring_emit(ring, 0); /* value */ } else { @@ -2622,12 +2411,12 @@ static int gen6_bsd_ring_flush(struct drm_i915_gem_request *req, } static int -gen8_ring_dispatch_execbuffer(struct drm_i915_gem_request *req, - u64 offset, u32 len, - unsigned dispatch_flags) +gen8_emit_bb_start(struct drm_i915_gem_request *req, + u64 offset, u32 len, + unsigned int dispatch_flags) { - struct intel_engine_cs *ring = req->ring; - bool ppgtt = USES_PPGTT(ring->dev) && + struct intel_ring *ring = req->ring; + bool ppgtt = USES_PPGTT(req->i915) && !(dispatch_flags & I915_DISPATCH_SECURE); int ret; @@ -2648,11 +2437,11 @@ gen8_ring_dispatch_execbuffer(struct drm_i915_gem_request *req, } static int -hsw_ring_dispatch_execbuffer(struct drm_i915_gem_request *req, - u64 offset, u32 len, - unsigned dispatch_flags) +hsw_emit_bb_start(struct drm_i915_gem_request *req, + u64 offset, u32 len, + unsigned int dispatch_flags) { - struct intel_engine_cs *ring = req->ring; + struct intel_ring *ring = req->ring; int ret; ret = intel_ring_begin(req, 2); @@ -2673,11 +2462,11 @@ hsw_ring_dispatch_execbuffer(struct drm_i915_gem_request *req, } static int -gen6_ring_dispatch_execbuffer(struct drm_i915_gem_request *req, - u64 offset, u32 len, - unsigned dispatch_flags) +gen6_emit_bb_start(struct drm_i915_gem_request *req, + u64 offset, u32 len, + unsigned int dispatch_flags) { - struct intel_engine_cs *ring = req->ring; + struct intel_ring *ring = req->ring; int ret; ret = intel_ring_begin(req, 2); @@ -2697,11 +2486,9 @@ gen6_ring_dispatch_execbuffer(struct drm_i915_gem_request *req, /* Blitter support (SandyBridge+) */ -static int gen6_ring_flush(struct drm_i915_gem_request *req, - u32 invalidate, u32 flush) +static int gen6_ring_flush(struct drm_i915_gem_request *req, u32 mode) { - struct intel_engine_cs *ring = req->ring; - struct drm_device *dev = ring->dev; + struct intel_ring *ring = req->ring; uint32_t cmd; int ret; @@ -2710,7 +2497,7 @@ static int gen6_ring_flush(struct drm_i915_gem_request *req, return ret; cmd = MI_FLUSH_DW; - if (INTEL_INFO(dev)->gen >= 8) + if (INTEL_GEN(req->i915) >= 8) cmd += 1; /* We always require a command barrier so that subsequent @@ -2726,11 +2513,12 @@ static int gen6_ring_flush(struct drm_i915_gem_request *req, * operation is complete. This bit is only valid when the * Post-Sync Operation field is a value of 1h or 3h." */ - if (invalidate & I915_GEM_DOMAIN_RENDER) + if (mode & EMIT_INVALIDATE) cmd |= MI_INVALIDATE_TLB; intel_ring_emit(ring, cmd); - intel_ring_emit(ring, I915_GEM_HWS_SCRATCH_ADDR | MI_FLUSH_DW_USE_GTT); - if (INTEL_INFO(dev)->gen >= 8) { + intel_ring_emit(ring, + I915_GEM_HWS_SCRATCH_ADDR | MI_FLUSH_DW_USE_GTT); + if (INTEL_GEN(req->i915) >= 8) { intel_ring_emit(ring, 0); /* upper addr */ intel_ring_emit(ring, 0); /* value */ } else { @@ -2742,150 +2530,214 @@ static int gen6_ring_flush(struct drm_i915_gem_request *req, return 0; } -int intel_init_render_ring_buffer(struct drm_device *dev) +static void intel_ring_init_semaphores(struct drm_i915_private *dev_priv, + struct intel_engine_cs *engine) { - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_engine_cs *ring = &dev_priv->ring[RCS]; struct drm_i915_gem_object *obj; - int ret; + int ret, i; + + if (!i915.semaphores) + return; + + if (INTEL_GEN(dev_priv) >= 8 && !dev_priv->semaphore) { + struct i915_vma *vma; + + obj = i915_gem_object_create(&dev_priv->drm, 4096); + if (IS_ERR(obj)) + goto err; + + vma = i915_vma_create(obj, &dev_priv->ggtt.base, NULL); + if (IS_ERR(vma)) + goto err_obj; + + ret = i915_gem_object_set_to_gtt_domain(obj, false); + if (ret) + goto err_obj; + + ret = i915_vma_pin(vma, 0, 0, PIN_GLOBAL | PIN_HIGH); + if (ret) + goto err_obj; + + dev_priv->semaphore = vma; + } + + if (INTEL_GEN(dev_priv) >= 8) { + u32 offset = i915_ggtt_offset(dev_priv->semaphore); + + engine->semaphore.sync_to = gen8_ring_sync_to; + engine->semaphore.signal = gen8_xcs_signal; + + for (i = 0; i < I915_NUM_ENGINES; i++) { + u32 ring_offset; + + if (i != engine->id) + ring_offset = offset + GEN8_SEMAPHORE_OFFSET(engine->id, i); + else + ring_offset = MI_SEMAPHORE_SYNC_INVALID; + + engine->semaphore.signal_ggtt[i] = ring_offset; + } + } else if (INTEL_GEN(dev_priv) >= 6) { + engine->semaphore.sync_to = gen6_ring_sync_to; + engine->semaphore.signal = gen6_signal; - ring->name = "render ring"; - ring->id = RCS; - ring->exec_id = I915_EXEC_RENDER; - ring->mmio_base = RENDER_RING_BASE; - - if (INTEL_INFO(dev)->gen >= 8) { - if (i915_semaphore_is_enabled(dev)) { - obj = i915_gem_alloc_object(dev, 4096); - if (obj == NULL) { - DRM_ERROR("Failed to allocate semaphore bo. Disabling semaphores\n"); - i915.semaphores = 0; + /* + * The current semaphore is only applied on pre-gen8 + * platform. And there is no VCS2 ring on the pre-gen8 + * platform. So the semaphore between RCS and VCS2 is + * initialized as INVALID. Gen8 will initialize the + * sema between VCS2 and RCS later. + */ + for (i = 0; i < GEN6_NUM_SEMAPHORES; i++) { + static const struct { + u32 wait_mbox; + i915_reg_t mbox_reg; + } sem_data[GEN6_NUM_SEMAPHORES][GEN6_NUM_SEMAPHORES] = { + [RCS_HW] = { + [VCS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_RV, .mbox_reg = GEN6_VRSYNC }, + [BCS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_RB, .mbox_reg = GEN6_BRSYNC }, + [VECS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_RVE, .mbox_reg = GEN6_VERSYNC }, + }, + [VCS_HW] = { + [RCS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_VR, .mbox_reg = GEN6_RVSYNC }, + [BCS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_VB, .mbox_reg = GEN6_BVSYNC }, + [VECS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_VVE, .mbox_reg = GEN6_VEVSYNC }, + }, + [BCS_HW] = { + [RCS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_BR, .mbox_reg = GEN6_RBSYNC }, + [VCS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_BV, .mbox_reg = GEN6_VBSYNC }, + [VECS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_BVE, .mbox_reg = GEN6_VEBSYNC }, + }, + [VECS_HW] = { + [RCS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_VER, .mbox_reg = GEN6_RVESYNC }, + [VCS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_VEV, .mbox_reg = GEN6_VVESYNC }, + [BCS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_VEB, .mbox_reg = GEN6_BVESYNC }, + }, + }; + u32 wait_mbox; + i915_reg_t mbox_reg; + + if (i == engine->hw_id) { + wait_mbox = MI_SEMAPHORE_SYNC_INVALID; + mbox_reg = GEN6_NOSYNC; } else { - i915_gem_object_set_cache_level(obj, I915_CACHE_LLC); - ret = i915_gem_obj_ggtt_pin(obj, 0, PIN_NONBLOCK); - if (ret != 0) { - drm_gem_object_unreference(&obj->base); - DRM_ERROR("Failed to pin semaphore bo. Disabling semaphores\n"); - i915.semaphores = 0; - } else - dev_priv->semaphore_obj = obj; + wait_mbox = sem_data[engine->hw_id][i].wait_mbox; + mbox_reg = sem_data[engine->hw_id][i].mbox_reg; } - } - ring->init_context = intel_rcs_ctx_init; - ring->add_request = gen6_add_request; - ring->flush = gen8_render_ring_flush; - ring->irq_get = gen8_ring_get_irq; - ring->irq_put = gen8_ring_put_irq; - ring->irq_enable_mask = GT_RENDER_USER_INTERRUPT; - ring->get_seqno = gen6_ring_get_seqno; - ring->set_seqno = ring_set_seqno; - if (i915_semaphore_is_enabled(dev)) { - WARN_ON(!dev_priv->semaphore_obj); - ring->semaphore.sync_to = gen8_ring_sync; - ring->semaphore.signal = gen8_rcs_signal; - GEN8_RING_SEMAPHORE_INIT; - } - } else if (INTEL_INFO(dev)->gen >= 6) { - ring->init_context = intel_rcs_ctx_init; - ring->add_request = gen6_add_request; - ring->flush = gen7_render_ring_flush; - if (INTEL_INFO(dev)->gen == 6) - ring->flush = gen6_render_ring_flush; - ring->irq_get = gen6_ring_get_irq; - ring->irq_put = gen6_ring_put_irq; - ring->irq_enable_mask = GT_RENDER_USER_INTERRUPT; - ring->get_seqno = gen6_ring_get_seqno; - ring->set_seqno = ring_set_seqno; - if (i915_semaphore_is_enabled(dev)) { - ring->semaphore.sync_to = gen6_ring_sync; - ring->semaphore.signal = gen6_signal; - /* - * The current semaphore is only applied on pre-gen8 - * platform. And there is no VCS2 ring on the pre-gen8 - * platform. So the semaphore between RCS and VCS2 is - * initialized as INVALID. Gen8 will initialize the - * sema between VCS2 and RCS later. - */ - ring->semaphore.mbox.wait[RCS] = MI_SEMAPHORE_SYNC_INVALID; - ring->semaphore.mbox.wait[VCS] = MI_SEMAPHORE_SYNC_RV; - ring->semaphore.mbox.wait[BCS] = MI_SEMAPHORE_SYNC_RB; - ring->semaphore.mbox.wait[VECS] = MI_SEMAPHORE_SYNC_RVE; - ring->semaphore.mbox.wait[VCS2] = MI_SEMAPHORE_SYNC_INVALID; - ring->semaphore.mbox.signal[RCS] = GEN6_NOSYNC; - ring->semaphore.mbox.signal[VCS] = GEN6_VRSYNC; - ring->semaphore.mbox.signal[BCS] = GEN6_BRSYNC; - ring->semaphore.mbox.signal[VECS] = GEN6_VERSYNC; - ring->semaphore.mbox.signal[VCS2] = GEN6_NOSYNC; + engine->semaphore.mbox.wait[i] = wait_mbox; + engine->semaphore.mbox.signal[i] = mbox_reg; } - } else if (IS_GEN5(dev)) { - ring->add_request = pc_render_add_request; - ring->flush = gen4_render_ring_flush; - ring->get_seqno = pc_render_get_seqno; - ring->set_seqno = pc_render_set_seqno; - ring->irq_get = gen5_ring_get_irq; - ring->irq_put = gen5_ring_put_irq; - ring->irq_enable_mask = GT_RENDER_USER_INTERRUPT | - GT_RENDER_PIPECTL_NOTIFY_INTERRUPT; + } + + return; + +err_obj: + i915_gem_object_put(obj); +err: + DRM_DEBUG_DRIVER("Failed to allocate space for semaphores, disabling\n"); + i915.semaphores = 0; +} + +static void intel_ring_init_irq(struct drm_i915_private *dev_priv, + struct intel_engine_cs *engine) +{ + engine->irq_enable_mask = GT_RENDER_USER_INTERRUPT << engine->irq_shift; + + if (INTEL_GEN(dev_priv) >= 8) { + engine->irq_enable = gen8_irq_enable; + engine->irq_disable = gen8_irq_disable; + engine->irq_seqno_barrier = gen6_seqno_barrier; + } else if (INTEL_GEN(dev_priv) >= 6) { + engine->irq_enable = gen6_irq_enable; + engine->irq_disable = gen6_irq_disable; + engine->irq_seqno_barrier = gen6_seqno_barrier; + } else if (INTEL_GEN(dev_priv) >= 5) { + engine->irq_enable = gen5_irq_enable; + engine->irq_disable = gen5_irq_disable; + engine->irq_seqno_barrier = gen5_seqno_barrier; + } else if (INTEL_GEN(dev_priv) >= 3) { + engine->irq_enable = i9xx_irq_enable; + engine->irq_disable = i9xx_irq_disable; } else { - ring->add_request = i9xx_add_request; - if (INTEL_INFO(dev)->gen < 4) - ring->flush = gen2_render_ring_flush; - else - ring->flush = gen4_render_ring_flush; - ring->get_seqno = ring_get_seqno; - ring->set_seqno = ring_set_seqno; - if (IS_GEN2(dev)) { - ring->irq_get = i8xx_ring_get_irq; - ring->irq_put = i8xx_ring_put_irq; - } else { - ring->irq_get = i9xx_ring_get_irq; - ring->irq_put = i9xx_ring_put_irq; - } - ring->irq_enable_mask = I915_USER_INTERRUPT; + engine->irq_enable = i8xx_irq_enable; + engine->irq_disable = i8xx_irq_disable; } - ring->write_tail = ring_write_tail; - - if (IS_HASWELL(dev)) - ring->dispatch_execbuffer = hsw_ring_dispatch_execbuffer; - else if (IS_GEN8(dev)) - ring->dispatch_execbuffer = gen8_ring_dispatch_execbuffer; - else if (INTEL_INFO(dev)->gen >= 6) - ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer; - else if (INTEL_INFO(dev)->gen >= 4) - ring->dispatch_execbuffer = i965_dispatch_execbuffer; - else if (IS_I830(dev) || IS_845G(dev)) - ring->dispatch_execbuffer = i830_dispatch_execbuffer; +} + +static void intel_ring_default_vfuncs(struct drm_i915_private *dev_priv, + struct intel_engine_cs *engine) +{ + intel_ring_init_irq(dev_priv, engine); + intel_ring_init_semaphores(dev_priv, engine); + + engine->init_hw = init_ring_common; + engine->reset_hw = reset_ring_common; + + engine->emit_request = i9xx_emit_request; + if (i915.semaphores) + engine->emit_request = gen6_sema_emit_request; + engine->submit_request = i9xx_submit_request; + + if (INTEL_GEN(dev_priv) >= 8) + engine->emit_bb_start = gen8_emit_bb_start; + else if (INTEL_GEN(dev_priv) >= 6) + engine->emit_bb_start = gen6_emit_bb_start; + else if (INTEL_GEN(dev_priv) >= 4) + engine->emit_bb_start = i965_emit_bb_start; + else if (IS_I830(dev_priv) || IS_845G(dev_priv)) + engine->emit_bb_start = i830_emit_bb_start; else - ring->dispatch_execbuffer = i915_dispatch_execbuffer; - ring->init_hw = init_render_ring; - ring->cleanup = render_ring_cleanup; - - /* Workaround batchbuffer to combat CS tlb bug. */ - if (HAS_BROKEN_CS_TLB(dev)) { - obj = i915_gem_alloc_object(dev, I830_WA_SIZE); - if (obj == NULL) { - DRM_ERROR("Failed to allocate batch bo\n"); - return -ENOMEM; - } + engine->emit_bb_start = i915_emit_bb_start; +} - ret = i915_gem_obj_ggtt_pin(obj, 0, 0); - if (ret != 0) { - drm_gem_object_unreference(&obj->base); - DRM_ERROR("Failed to ping batch bo\n"); - return ret; - } +int intel_init_render_ring_buffer(struct intel_engine_cs *engine) +{ + struct drm_i915_private *dev_priv = engine->i915; + int ret; - ring->scratch.obj = obj; - ring->scratch.gtt_offset = i915_gem_obj_ggtt_offset(obj); + intel_ring_default_vfuncs(dev_priv, engine); + + if (HAS_L3_DPF(dev_priv)) + engine->irq_keep_mask = GT_RENDER_L3_PARITY_ERROR_INTERRUPT; + + if (INTEL_GEN(dev_priv) >= 8) { + engine->init_context = intel_rcs_ctx_init; + engine->emit_request = gen8_render_emit_request; + engine->emit_flush = gen8_render_ring_flush; + if (i915.semaphores) + engine->semaphore.signal = gen8_rcs_signal; + } else if (INTEL_GEN(dev_priv) >= 6) { + engine->init_context = intel_rcs_ctx_init; + engine->emit_flush = gen7_render_ring_flush; + if (IS_GEN6(dev_priv)) + engine->emit_flush = gen6_render_ring_flush; + } else if (IS_GEN5(dev_priv)) { + engine->emit_flush = gen4_render_ring_flush; + } else { + if (INTEL_GEN(dev_priv) < 4) + engine->emit_flush = gen2_render_ring_flush; + else + engine->emit_flush = gen4_render_ring_flush; + engine->irq_enable_mask = I915_USER_INTERRUPT; } - ret = intel_init_ring_buffer(dev, ring); + if (IS_HASWELL(dev_priv)) + engine->emit_bb_start = hsw_emit_bb_start; + + engine->init_hw = init_render_ring; + engine->cleanup = render_ring_cleanup; + + ret = intel_init_ring_buffer(engine); if (ret) return ret; - if (INTEL_INFO(dev)->gen >= 5) { - ret = intel_init_pipe_control(ring); + if (INTEL_GEN(dev_priv) >= 6) { + ret = intel_engine_create_scratch(engine, 4096); + if (ret) + return ret; + } else if (HAS_BROKEN_CS_TLB(dev_priv)) { + ret = intel_engine_create_scratch(engine, I830_WA_SIZE); if (ret) return ret; } @@ -2893,276 +2745,71 @@ int intel_init_render_ring_buffer(struct drm_device *dev) return 0; } -int intel_init_bsd_ring_buffer(struct drm_device *dev) +int intel_init_bsd_ring_buffer(struct intel_engine_cs *engine) { - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_engine_cs *ring = &dev_priv->ring[VCS]; + struct drm_i915_private *dev_priv = engine->i915; - ring->name = "bsd ring"; - ring->id = VCS; - ring->exec_id = I915_EXEC_BSD; + intel_ring_default_vfuncs(dev_priv, engine); - ring->write_tail = ring_write_tail; - if (INTEL_INFO(dev)->gen >= 6) { - ring->mmio_base = GEN6_BSD_RING_BASE; + if (INTEL_GEN(dev_priv) >= 6) { /* gen6 bsd needs a special wa for tail updates */ - if (IS_GEN6(dev)) - ring->write_tail = gen6_bsd_ring_write_tail; - ring->flush = gen6_bsd_ring_flush; - ring->add_request = gen6_add_request; - ring->get_seqno = gen6_ring_get_seqno; - ring->set_seqno = ring_set_seqno; - if (INTEL_INFO(dev)->gen >= 8) { - ring->irq_enable_mask = - GT_RENDER_USER_INTERRUPT << GEN8_VCS1_IRQ_SHIFT; - ring->irq_get = gen8_ring_get_irq; - ring->irq_put = gen8_ring_put_irq; - ring->dispatch_execbuffer = - gen8_ring_dispatch_execbuffer; - if (i915_semaphore_is_enabled(dev)) { - ring->semaphore.sync_to = gen8_ring_sync; - ring->semaphore.signal = gen8_xcs_signal; - GEN8_RING_SEMAPHORE_INIT; - } - } else { - ring->irq_enable_mask = GT_BSD_USER_INTERRUPT; - ring->irq_get = gen6_ring_get_irq; - ring->irq_put = gen6_ring_put_irq; - ring->dispatch_execbuffer = - gen6_ring_dispatch_execbuffer; - if (i915_semaphore_is_enabled(dev)) { - ring->semaphore.sync_to = gen6_ring_sync; - ring->semaphore.signal = gen6_signal; - ring->semaphore.mbox.wait[RCS] = MI_SEMAPHORE_SYNC_VR; - ring->semaphore.mbox.wait[VCS] = MI_SEMAPHORE_SYNC_INVALID; - ring->semaphore.mbox.wait[BCS] = MI_SEMAPHORE_SYNC_VB; - ring->semaphore.mbox.wait[VECS] = MI_SEMAPHORE_SYNC_VVE; - ring->semaphore.mbox.wait[VCS2] = MI_SEMAPHORE_SYNC_INVALID; - ring->semaphore.mbox.signal[RCS] = GEN6_RVSYNC; - ring->semaphore.mbox.signal[VCS] = GEN6_NOSYNC; - ring->semaphore.mbox.signal[BCS] = GEN6_BVSYNC; - ring->semaphore.mbox.signal[VECS] = GEN6_VEVSYNC; - ring->semaphore.mbox.signal[VCS2] = GEN6_NOSYNC; - } - } + if (IS_GEN6(dev_priv)) + engine->submit_request = gen6_bsd_submit_request; + engine->emit_flush = gen6_bsd_ring_flush; + if (INTEL_GEN(dev_priv) < 8) + engine->irq_enable_mask = GT_BSD_USER_INTERRUPT; } else { - ring->mmio_base = BSD_RING_BASE; - ring->flush = bsd_ring_flush; - ring->add_request = i9xx_add_request; - ring->get_seqno = ring_get_seqno; - ring->set_seqno = ring_set_seqno; - if (IS_GEN5(dev)) { - ring->irq_enable_mask = ILK_BSD_USER_INTERRUPT; - ring->irq_get = gen5_ring_get_irq; - ring->irq_put = gen5_ring_put_irq; - } else { - ring->irq_enable_mask = I915_BSD_USER_INTERRUPT; - ring->irq_get = i9xx_ring_get_irq; - ring->irq_put = i9xx_ring_put_irq; - } - ring->dispatch_execbuffer = i965_dispatch_execbuffer; + engine->mmio_base = BSD_RING_BASE; + engine->emit_flush = bsd_ring_flush; + if (IS_GEN5(dev_priv)) + engine->irq_enable_mask = ILK_BSD_USER_INTERRUPT; + else + engine->irq_enable_mask = I915_BSD_USER_INTERRUPT; } - ring->init_hw = init_ring_common; - return intel_init_ring_buffer(dev, ring); + return intel_init_ring_buffer(engine); } /** * Initialize the second BSD ring (eg. Broadwell GT3, Skylake GT3) */ -int intel_init_bsd2_ring_buffer(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_engine_cs *ring = &dev_priv->ring[VCS2]; - - ring->name = "bsd2 ring"; - ring->id = VCS2; - ring->exec_id = I915_EXEC_BSD; - - ring->write_tail = ring_write_tail; - ring->mmio_base = GEN8_BSD2_RING_BASE; - ring->flush = gen6_bsd_ring_flush; - ring->add_request = gen6_add_request; - ring->get_seqno = gen6_ring_get_seqno; - ring->set_seqno = ring_set_seqno; - ring->irq_enable_mask = - GT_RENDER_USER_INTERRUPT << GEN8_VCS2_IRQ_SHIFT; - ring->irq_get = gen8_ring_get_irq; - ring->irq_put = gen8_ring_put_irq; - ring->dispatch_execbuffer = - gen8_ring_dispatch_execbuffer; - if (i915_semaphore_is_enabled(dev)) { - ring->semaphore.sync_to = gen8_ring_sync; - ring->semaphore.signal = gen8_xcs_signal; - GEN8_RING_SEMAPHORE_INIT; - } - ring->init_hw = init_ring_common; - - return intel_init_ring_buffer(dev, ring); -} - -int intel_init_blt_ring_buffer(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_engine_cs *ring = &dev_priv->ring[BCS]; - - ring->name = "blitter ring"; - ring->id = BCS; - ring->exec_id = I915_EXEC_BLT; - - ring->mmio_base = BLT_RING_BASE; - ring->write_tail = ring_write_tail; - ring->flush = gen6_ring_flush; - ring->add_request = gen6_add_request; - ring->get_seqno = gen6_ring_get_seqno; - ring->set_seqno = ring_set_seqno; - if (INTEL_INFO(dev)->gen >= 8) { - ring->irq_enable_mask = - GT_RENDER_USER_INTERRUPT << GEN8_BCS_IRQ_SHIFT; - ring->irq_get = gen8_ring_get_irq; - ring->irq_put = gen8_ring_put_irq; - ring->dispatch_execbuffer = gen8_ring_dispatch_execbuffer; - if (i915_semaphore_is_enabled(dev)) { - ring->semaphore.sync_to = gen8_ring_sync; - ring->semaphore.signal = gen8_xcs_signal; - GEN8_RING_SEMAPHORE_INIT; - } - } else { - ring->irq_enable_mask = GT_BLT_USER_INTERRUPT; - ring->irq_get = gen6_ring_get_irq; - ring->irq_put = gen6_ring_put_irq; - ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer; - if (i915_semaphore_is_enabled(dev)) { - ring->semaphore.signal = gen6_signal; - ring->semaphore.sync_to = gen6_ring_sync; - /* - * The current semaphore is only applied on pre-gen8 - * platform. And there is no VCS2 ring on the pre-gen8 - * platform. So the semaphore between BCS and VCS2 is - * initialized as INVALID. Gen8 will initialize the - * sema between BCS and VCS2 later. - */ - ring->semaphore.mbox.wait[RCS] = MI_SEMAPHORE_SYNC_BR; - ring->semaphore.mbox.wait[VCS] = MI_SEMAPHORE_SYNC_BV; - ring->semaphore.mbox.wait[BCS] = MI_SEMAPHORE_SYNC_INVALID; - ring->semaphore.mbox.wait[VECS] = MI_SEMAPHORE_SYNC_BVE; - ring->semaphore.mbox.wait[VCS2] = MI_SEMAPHORE_SYNC_INVALID; - ring->semaphore.mbox.signal[RCS] = GEN6_RBSYNC; - ring->semaphore.mbox.signal[VCS] = GEN6_VBSYNC; - ring->semaphore.mbox.signal[BCS] = GEN6_NOSYNC; - ring->semaphore.mbox.signal[VECS] = GEN6_VEBSYNC; - ring->semaphore.mbox.signal[VCS2] = GEN6_NOSYNC; - } - } - ring->init_hw = init_ring_common; - - return intel_init_ring_buffer(dev, ring); -} - -int intel_init_vebox_ring_buffer(struct drm_device *dev) +int intel_init_bsd2_ring_buffer(struct intel_engine_cs *engine) { - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_engine_cs *ring = &dev_priv->ring[VECS]; + struct drm_i915_private *dev_priv = engine->i915; - ring->name = "video enhancement ring"; - ring->id = VECS; - ring->exec_id = I915_EXEC_VEBOX; + intel_ring_default_vfuncs(dev_priv, engine); - ring->mmio_base = VEBOX_RING_BASE; - ring->write_tail = ring_write_tail; - ring->flush = gen6_ring_flush; - ring->add_request = gen6_add_request; - ring->get_seqno = gen6_ring_get_seqno; - ring->set_seqno = ring_set_seqno; + engine->emit_flush = gen6_bsd_ring_flush; - if (INTEL_INFO(dev)->gen >= 8) { - ring->irq_enable_mask = - GT_RENDER_USER_INTERRUPT << GEN8_VECS_IRQ_SHIFT; - ring->irq_get = gen8_ring_get_irq; - ring->irq_put = gen8_ring_put_irq; - ring->dispatch_execbuffer = gen8_ring_dispatch_execbuffer; - if (i915_semaphore_is_enabled(dev)) { - ring->semaphore.sync_to = gen8_ring_sync; - ring->semaphore.signal = gen8_xcs_signal; - GEN8_RING_SEMAPHORE_INIT; - } - } else { - ring->irq_enable_mask = PM_VEBOX_USER_INTERRUPT; - ring->irq_get = hsw_vebox_get_irq; - ring->irq_put = hsw_vebox_put_irq; - ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer; - if (i915_semaphore_is_enabled(dev)) { - ring->semaphore.sync_to = gen6_ring_sync; - ring->semaphore.signal = gen6_signal; - ring->semaphore.mbox.wait[RCS] = MI_SEMAPHORE_SYNC_VER; - ring->semaphore.mbox.wait[VCS] = MI_SEMAPHORE_SYNC_VEV; - ring->semaphore.mbox.wait[BCS] = MI_SEMAPHORE_SYNC_VEB; - ring->semaphore.mbox.wait[VECS] = MI_SEMAPHORE_SYNC_INVALID; - ring->semaphore.mbox.wait[VCS2] = MI_SEMAPHORE_SYNC_INVALID; - ring->semaphore.mbox.signal[RCS] = GEN6_RVESYNC; - ring->semaphore.mbox.signal[VCS] = GEN6_VVESYNC; - ring->semaphore.mbox.signal[BCS] = GEN6_BVESYNC; - ring->semaphore.mbox.signal[VECS] = GEN6_NOSYNC; - ring->semaphore.mbox.signal[VCS2] = GEN6_NOSYNC; - } - } - ring->init_hw = init_ring_common; - - return intel_init_ring_buffer(dev, ring); + return intel_init_ring_buffer(engine); } -int -intel_ring_flush_all_caches(struct drm_i915_gem_request *req) +int intel_init_blt_ring_buffer(struct intel_engine_cs *engine) { - struct intel_engine_cs *ring = req->ring; - int ret; - - if (!ring->gpu_caches_dirty) - return 0; + struct drm_i915_private *dev_priv = engine->i915; - ret = ring->flush(req, 0, I915_GEM_GPU_DOMAINS); - if (ret) - return ret; + intel_ring_default_vfuncs(dev_priv, engine); - trace_i915_gem_ring_flush(req, 0, I915_GEM_GPU_DOMAINS); + engine->emit_flush = gen6_ring_flush; + if (INTEL_GEN(dev_priv) < 8) + engine->irq_enable_mask = GT_BLT_USER_INTERRUPT; - ring->gpu_caches_dirty = false; - return 0; + return intel_init_ring_buffer(engine); } -int -intel_ring_invalidate_all_caches(struct drm_i915_gem_request *req) +int intel_init_vebox_ring_buffer(struct intel_engine_cs *engine) { - struct intel_engine_cs *ring = req->ring; - uint32_t flush_domains; - int ret; + struct drm_i915_private *dev_priv = engine->i915; - flush_domains = 0; - if (ring->gpu_caches_dirty) - flush_domains = I915_GEM_GPU_DOMAINS; + intel_ring_default_vfuncs(dev_priv, engine); - ret = ring->flush(req, I915_GEM_GPU_DOMAINS, flush_domains); - if (ret) - return ret; - - trace_i915_gem_ring_flush(req, I915_GEM_GPU_DOMAINS, flush_domains); + engine->emit_flush = gen6_ring_flush; - ring->gpu_caches_dirty = false; - return 0; -} - -void -intel_stop_ring_buffer(struct intel_engine_cs *ring) -{ - int ret; - - if (!intel_ring_initialized(ring)) - return; - - ret = intel_ring_idle(ring); - if (ret && !i915_reset_in_progress(&to_i915(ring->dev)->gpu_error)) - DRM_ERROR("failed to quiesce %s whilst cleaning up: %d\n", - ring->name, ret); + if (INTEL_GEN(dev_priv) < 8) { + engine->irq_enable_mask = PM_VEBOX_USER_INTERRUPT; + engine->irq_enable = hsw_vebox_irq_enable; + engine->irq_disable = hsw_vebox_irq_disable; + } - stop_ring(ring); + return intel_init_ring_buffer(engine); } |