From 2046d46db9166bddc84778f0b3477f6d1e9068ea Mon Sep 17 00:00:00 2001 From: Yong Zhao Date: Thu, 20 Jul 2017 18:49:09 -0400 Subject: drm/amdgpu: Add a parameter to amdgpu_bo_create() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The parameter init_value contains the value to which we initialized VRAM bo when AMDGPU_GEM_CREATE_VRAM_CLEARED flag is set. Signed-off-by: Yong Zhao Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c index 6bdc866570ab..5b3f92891f89 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c @@ -69,7 +69,7 @@ amdgpu_gem_prime_import_sg_table(struct drm_device *dev, ww_mutex_lock(&resv->lock, NULL); ret = amdgpu_bo_create(adev, attach->dmabuf->size, PAGE_SIZE, false, - AMDGPU_GEM_DOMAIN_GTT, 0, sg, resv, &bo); + AMDGPU_GEM_DOMAIN_GTT, 0, sg, resv, 0, &bo); ww_mutex_unlock(&resv->lock); if (ret) return ERR_PTR(ret); -- cgit v1.2.3 From e1eb899b45781b9bb77e6d7772d6e67bb0bc1a18 Mon Sep 17 00:00:00 2001 From: Christian König Date: Fri, 25 Aug 2017 09:14:43 +0200 Subject: drm/amdgpu: add IOCTL interface for per VM BOs v3 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add the IOCTL interface so that applications can allocate per VM BOs. Still WIP since not all corner cases are tested yet, but this reduces average CS overhead for 10K BOs from 21ms down to 48us. v2: add some extra checks, remove the WIP tag v3: rename new flag to AMDGPU_GEM_CREATE_VM_ALWAYS_VALID Signed-off-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 7 ++-- drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 63 ++++++++++++++++++++++--------- drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c | 3 +- include/uapi/drm/amdgpu_drm.h | 2 + 5 files changed, 55 insertions(+), 22 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 103635ab784c..5809f55e0d9d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -455,9 +455,10 @@ struct amdgpu_sa_bo { */ void amdgpu_gem_force_release(struct amdgpu_device *adev); int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size, - int alignment, u32 initial_domain, - u64 flags, bool kernel, - struct drm_gem_object **obj); + int alignment, u32 initial_domain, + u64 flags, bool kernel, + struct reservation_object *resv, + struct drm_gem_object **obj); int amdgpu_mode_dumb_create(struct drm_file *file_priv, struct drm_device *dev, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c index 9afa9c097e1f..b6cb276f0a70 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c @@ -149,7 +149,7 @@ static int amdgpufb_create_pinned_object(struct amdgpu_fbdev *rfbdev, AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS | AMDGPU_GEM_CREATE_VRAM_CLEARED, - true, &gobj); + true, NULL, &gobj); if (ret) { pr_err("failed to allocate framebuffer (%d)\n", aligned_size); return -ENOMEM; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index e32a2b55b54f..f1e61b3df640 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -44,11 +44,12 @@ void amdgpu_gem_object_free(struct drm_gem_object *gobj) } int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size, - int alignment, u32 initial_domain, - u64 flags, bool kernel, - struct drm_gem_object **obj) + int alignment, u32 initial_domain, + u64 flags, bool kernel, + struct reservation_object *resv, + struct drm_gem_object **obj) { - struct amdgpu_bo *robj; + struct amdgpu_bo *bo; int r; *obj = NULL; @@ -59,7 +60,7 @@ int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size, retry: r = amdgpu_bo_create(adev, size, alignment, kernel, initial_domain, - flags, NULL, NULL, 0, &robj); + flags, NULL, resv, 0, &bo); if (r) { if (r != -ERESTARTSYS) { if (initial_domain == AMDGPU_GEM_DOMAIN_VRAM) { @@ -71,7 +72,7 @@ retry: } return r; } - *obj = &robj->gem_base; + *obj = &bo->gem_base; return 0; } @@ -119,6 +120,10 @@ int amdgpu_gem_object_open(struct drm_gem_object *obj, if (mm && mm != current->mm) return -EPERM; + if (abo->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID && + abo->tbo.resv != vm->root.base.bo->tbo.resv) + return -EPERM; + r = amdgpu_bo_reserve(abo, false); if (r) return r; @@ -142,13 +147,14 @@ void amdgpu_gem_object_close(struct drm_gem_object *obj, struct amdgpu_vm *vm = &fpriv->vm; struct amdgpu_bo_list_entry vm_pd; - struct list_head list; + struct list_head list, duplicates; struct ttm_validate_buffer tv; struct ww_acquire_ctx ticket; struct amdgpu_bo_va *bo_va; int r; INIT_LIST_HEAD(&list); + INIT_LIST_HEAD(&duplicates); tv.bo = &bo->tbo; tv.shared = true; @@ -156,7 +162,7 @@ void amdgpu_gem_object_close(struct drm_gem_object *obj, amdgpu_vm_get_pd_bo(vm, &list, &vm_pd); - r = ttm_eu_reserve_buffers(&ticket, &list, false, NULL); + r = ttm_eu_reserve_buffers(&ticket, &list, false, &duplicates); if (r) { dev_err(adev->dev, "leaking bo va because " "we fail to reserve bo (%d)\n", r); @@ -191,9 +197,12 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) { struct amdgpu_device *adev = dev->dev_private; + struct amdgpu_fpriv *fpriv = filp->driver_priv; + struct amdgpu_vm *vm = &fpriv->vm; union drm_amdgpu_gem_create *args = data; uint64_t flags = args->in.domain_flags; uint64_t size = args->in.bo_size; + struct reservation_object *resv = NULL; struct drm_gem_object *gobj; uint32_t handle; int r; @@ -202,7 +211,8 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data, if (flags & ~(AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | AMDGPU_GEM_CREATE_NO_CPU_ACCESS | AMDGPU_GEM_CREATE_CPU_GTT_USWC | - AMDGPU_GEM_CREATE_VRAM_CLEARED)) + AMDGPU_GEM_CREATE_VRAM_CLEARED | + AMDGPU_GEM_CREATE_VM_ALWAYS_VALID)) return -EINVAL; /* reject invalid gem domains */ @@ -229,9 +239,25 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data, } size = roundup(size, PAGE_SIZE); + if (flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) { + r = amdgpu_bo_reserve(vm->root.base.bo, false); + if (r) + return r; + + resv = vm->root.base.bo->tbo.resv; + } + r = amdgpu_gem_object_create(adev, size, args->in.alignment, (u32)(0xffffffff & args->in.domains), - flags, false, &gobj); + flags, false, resv, &gobj); + if (flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) { + if (!r) { + struct amdgpu_bo *abo = gem_to_amdgpu_bo(gobj); + + abo->parent = amdgpu_bo_ref(vm->root.base.bo); + } + amdgpu_bo_unreserve(vm->root.base.bo); + } if (r) return r; @@ -273,9 +299,8 @@ int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data, } /* create a gem object to contain this object in */ - r = amdgpu_gem_object_create(adev, args->size, 0, - AMDGPU_GEM_DOMAIN_CPU, 0, - 0, &gobj); + r = amdgpu_gem_object_create(adev, args->size, 0, AMDGPU_GEM_DOMAIN_CPU, + 0, 0, NULL, &gobj); if (r) return r; @@ -527,7 +552,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, struct amdgpu_bo_list_entry vm_pd; struct ttm_validate_buffer tv; struct ww_acquire_ctx ticket; - struct list_head list; + struct list_head list, duplicates; uint64_t va_flags; int r = 0; @@ -563,6 +588,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, } INIT_LIST_HEAD(&list); + INIT_LIST_HEAD(&duplicates); if ((args->operation != AMDGPU_VA_OP_CLEAR) && !(args->flags & AMDGPU_VM_PAGE_PRT)) { gobj = drm_gem_object_lookup(filp, args->handle); @@ -579,7 +605,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, amdgpu_vm_get_pd_bo(&fpriv->vm, &list, &vm_pd); - r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL); + r = ttm_eu_reserve_buffers(&ticket, &list, true, &duplicates); if (r) goto error_unref; @@ -645,6 +671,7 @@ error_unref: int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) { + struct amdgpu_device *adev = dev->dev_private; struct drm_amdgpu_gem_op *args = data; struct drm_gem_object *gobj; struct amdgpu_bo *robj; @@ -692,6 +719,9 @@ int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data, if (robj->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM) robj->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT; + if (robj->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) + amdgpu_vm_bo_invalidate(adev, robj, true); + amdgpu_bo_unreserve(robj); break; default: @@ -721,8 +751,7 @@ int amdgpu_mode_dumb_create(struct drm_file *file_priv, r = amdgpu_gem_object_create(adev, args->size, 0, AMDGPU_GEM_DOMAIN_VRAM, AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED, - ttm_bo_type_device, - &gobj); + false, NULL, &gobj); if (r) return -ENOMEM; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c index 5b3f92891f89..7e0826469b5e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c @@ -136,7 +136,8 @@ struct dma_buf *amdgpu_gem_prime_export(struct drm_device *dev, { struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj); - if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm)) + if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm) || + bo->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) return ERR_PTR(-EPERM); return drm_gem_prime_export(dev, gobj, flags); diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index 7b8fa11c2285..e055776f2f4c 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -87,6 +87,8 @@ extern "C" { #define AMDGPU_GEM_CREATE_SHADOW (1 << 4) /* Flag that allocating the BO should use linear VRAM */ #define AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS (1 << 5) +/* Flag that BO is always valid in this VM */ +#define AMDGPU_GEM_CREATE_VM_ALWAYS_VALID (1 << 6) struct drm_amdgpu_gem_create_in { /** the requested memory size */ -- cgit v1.2.3 From dfced2e4bcbc8d6bd9bad11cc6b4643ba36ed35a Mon Sep 17 00:00:00 2001 From: Samuel Li Date: Tue, 22 Aug 2017 15:25:33 -0400 Subject: drm/amdgpu: Add gem_prime_mmap support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit v2: drop hdp invalidate/flush. v3: honor pgoff during prime mmap. Add a barrier after cpu access. v4: drop begin/end_cpu_access() for now, revisit later. Signed-off-by: Samuel Li Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c | 34 +++++++++++++++++++++++++++++++ 3 files changed, 36 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 7c43add4e444..ebfc267467ee 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -413,6 +413,7 @@ void amdgpu_gem_prime_unpin(struct drm_gem_object *obj); struct reservation_object *amdgpu_gem_prime_res_obj(struct drm_gem_object *); void *amdgpu_gem_prime_vmap(struct drm_gem_object *obj); void amdgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); +int amdgpu_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma); int amdgpu_gem_debugfs_init(struct amdgpu_device *adev); /* sub-allocation manager, it has to be protected by another lock. diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 91e42b60d66b..4f98960e47f9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -855,6 +855,7 @@ static struct drm_driver kms_driver = { .gem_prime_import_sg_table = amdgpu_gem_prime_import_sg_table, .gem_prime_vmap = amdgpu_gem_prime_vmap, .gem_prime_vunmap = amdgpu_gem_prime_vunmap, + .gem_prime_mmap = amdgpu_gem_prime_mmap, .name = DRIVER_NAME, .desc = DRIVER_DESC, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c index 7e0826469b5e..90af8e82b16a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c @@ -57,6 +57,40 @@ void amdgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr) ttm_bo_kunmap(&bo->dma_buf_vmap); } +int amdgpu_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) +{ + struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj); + struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); + unsigned asize = amdgpu_bo_size(bo); + int ret; + + if (!vma->vm_file) + return -ENODEV; + + if (adev == NULL) + return -ENODEV; + + /* Check for valid size. */ + if (asize < vma->vm_end - vma->vm_start) + return -EINVAL; + + if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm) || + (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)) { + return -EPERM; + } + vma->vm_pgoff += amdgpu_bo_mmap_offset(bo) >> PAGE_SHIFT; + + /* prime mmap does not need to check access, so allow here */ + ret = drm_vma_node_allow(&obj->vma_node, vma->vm_file->private_data); + if (ret) + return ret; + + ret = ttm_bo_mmap(vma->vm_file, vma, &adev->mman.bdev); + drm_vma_node_revoke(&obj->vma_node, vma->vm_file->private_data); + + return ret; +} + struct drm_gem_object * amdgpu_gem_prime_import_sg_table(struct drm_device *dev, struct dma_buf_attachment *attach, -- cgit v1.2.3 From 4b277247b1df177a7a60f0601ebe3dc952e5dd54 Mon Sep 17 00:00:00 2001 From: Christian König Date: Mon, 13 Nov 2017 17:20:50 +0100 Subject: drm/amdgpu: set f_mapping on exported DMA-bufs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Otherwise we can't correctly CPU map TTM buffers. Signed-off-by: Christian König Acked-by: Alex Deucher Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c index 90af8e82b16a..ae9c106979d7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c @@ -169,10 +169,14 @@ struct dma_buf *amdgpu_gem_prime_export(struct drm_device *dev, int flags) { struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj); + struct dma_buf *buf; if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm) || bo->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) return ERR_PTR(-EPERM); - return drm_gem_prime_export(dev, gobj, flags); + buf = drm_gem_prime_export(dev, gobj, flags); + if (!IS_ERR(buf)) + buf->file->f_mapping = dev->anon_inode->i_mapping; + return buf; } -- cgit v1.2.3