diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2019-08-10 10:29:45 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-10 11:19:00 +0100 |
| commit | 554e330ceb9f00204bb692974c490ad50fc104cc (patch) | |
| tree | f0ad45a514fd85f188f3ffa26d938e5b3334717e /drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c | |
| parent | 963ad1285b7c7c5e4c75c2aa108ace866010e9bc (diff) | |
drm/i915/blt: bump the size restriction
As pointed out by Chris, with our current approach we are actually
limited to S16_MAX * PAGE_SIZE for our size when using the blt to clear
pages. Keeping things simple try to fix this by reducing the copy to a
sequence of S16_MAX * PAGE_SIZE blocks.
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
[ickle: hide the details of the engine pool inside emit_vma]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190810092945.2762-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c index 19843acc84d3..c6e1eebe53f5 100644 --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c @@ -9,6 +9,7 @@ #include "selftests/igt_flush_test.h" #include "selftests/mock_drm.h" +#include "huge_gem_object.h" #include "mock_context.h" static int igt_fill_blt(void *arg) @@ -23,16 +24,26 @@ static int igt_fill_blt(void *arg) prandom_seed_state(&prng, i915_selftest.random_seed); + /* + * XXX: needs some threads to scale all these tests, also maybe throw + * in submission from higher priority context to see if we are + * preempted for very large objects... + */ + do { - u32 sz = prandom_u32_state(&prng) % SZ_32M; + const u32 max_block_size = S16_MAX * PAGE_SIZE; + u32 sz = min_t(u64, ce->vm->total >> 4, prandom_u32_state(&prng)); + u32 phys_sz = sz % (max_block_size + 1); u32 val = prandom_u32_state(&prng); u32 i; sz = round_up(sz, PAGE_SIZE); + phys_sz = round_up(phys_sz, PAGE_SIZE); - pr_debug("%s with sz=%x, val=%x\n", __func__, sz, val); + pr_debug("%s with phys_sz= %x, sz=%x, val=%x\n", __func__, + phys_sz, sz, val); - obj = i915_gem_object_create_internal(i915, sz); + obj = huge_gem_object(i915, phys_sz, sz); if (IS_ERR(obj)) { err = PTR_ERR(obj); goto err_flush; @@ -48,7 +59,8 @@ static int igt_fill_blt(void *arg) * Make sure the potentially async clflush does its job, if * required. */ - memset32(vaddr, val ^ 0xdeadbeaf, obj->base.size / sizeof(u32)); + memset32(vaddr, val ^ 0xdeadbeaf, + huge_gem_object_phys_size(obj) / sizeof(u32)); if (!(obj->cache_coherent & I915_BO_CACHE_COHERENT_FOR_WRITE)) obj->cache_dirty = true; @@ -65,7 +77,7 @@ static int igt_fill_blt(void *arg) if (err) goto err_unpin; - for (i = 0; i < obj->base.size / sizeof(u32); ++i) { + for (i = 0; i < huge_gem_object_phys_size(obj) / sizeof(u32); ++i) { if (vaddr[i] != val) { pr_err("vaddr[%u]=%x, expected=%x\n", i, vaddr[i], val); |