* [PATCH 1/2] drm/amdgpu: Don't change preferred domian when fallback GTT v6 @ 2018-04-02 7:00 Chunming Zhou [not found] ` <20180402070032.5306-1-david1.zhou-5C7GfCeVMHo@public.gmane.org> 0 siblings, 1 reply; 3+ messages in thread From: Chunming Zhou @ 2018-04-02 7:00 UTC (permalink / raw) To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW Cc: Chunming Zhou, felix.kuehling-5C7GfCeVMHo v2: add sanity checking v3: make code open v4: also handle visible to invisible fallback v5: Since two fallback cases, re-use goto retry v6: avoid bo is unref when retry, and only user BO can fallback Change-Id: I2cf672ad36b8b4cc1a6b2e704f786bf6a155d9ce Signed-off-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> (v5) Cc: felix.kuehling@amd.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 16 ++----------- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 37 +++++++++++++++++++----------- 2 files changed, 26 insertions(+), 27 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index 46b9ea4e6103..28c2706e48d7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -56,23 +56,11 @@ int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size, alignment = PAGE_SIZE; } -retry: r = amdgpu_bo_create(adev, size, alignment, initial_domain, flags, type, resv, &bo); if (r) { - if (r != -ERESTARTSYS) { - if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) { - flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED; - goto retry; - } - - if (initial_domain == AMDGPU_GEM_DOMAIN_VRAM) { - initial_domain |= AMDGPU_GEM_DOMAIN_GTT; - goto retry; - } - DRM_DEBUG("Failed to allocate GEM object (%ld, %d, %u, %d)\n", - size, initial_domain, alignment, r); - } + DRM_DEBUG("Failed to allocate GEM object (%ld, %d, %u, %d)\n", + size, initial_domain, alignment, r); return r; } *obj = &bo->gem_base; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index ac1fa3394a9e..f04bfab1eebd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -352,6 +352,7 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev, unsigned long size, struct amdgpu_bo *bo; unsigned long page_align; size_t acc_size; + u32 domains, preferred_domains, allowed_domains; int r; page_align = roundup(byte_align, PAGE_SIZE) >> PAGE_SHIFT; @@ -365,22 +366,24 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev, unsigned long size, acc_size = ttm_bo_dma_acc_size(&adev->mman.bdev, size, sizeof(struct amdgpu_bo)); + preferred_domains = domain & (AMDGPU_GEM_DOMAIN_VRAM | + AMDGPU_GEM_DOMAIN_GTT | + AMDGPU_GEM_DOMAIN_CPU | + AMDGPU_GEM_DOMAIN_GDS | + AMDGPU_GEM_DOMAIN_GWS | + AMDGPU_GEM_DOMAIN_OA); + allowed_domains = preferred_domains; + if (type != ttm_bo_type_kernel && + allowed_domains == AMDGPU_GEM_DOMAIN_VRAM) + allowed_domains |= AMDGPU_GEM_DOMAIN_GTT; + domains = preferred_domains; +retry: bo = kzalloc(sizeof(struct amdgpu_bo), GFP_KERNEL); if (bo == NULL) return -ENOMEM; drm_gem_private_object_init(adev->ddev, &bo->gem_base, size); INIT_LIST_HEAD(&bo->shadow_list); INIT_LIST_HEAD(&bo->va); - bo->preferred_domains = domain & (AMDGPU_GEM_DOMAIN_VRAM | - AMDGPU_GEM_DOMAIN_GTT | - AMDGPU_GEM_DOMAIN_CPU | - AMDGPU_GEM_DOMAIN_GDS | - AMDGPU_GEM_DOMAIN_GWS | - AMDGPU_GEM_DOMAIN_OA); - bo->allowed_domains = bo->preferred_domains; - if (type != ttm_bo_type_kernel && - bo->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM) - bo->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT; bo->flags = flags; @@ -413,12 +416,20 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev, unsigned long size, #endif bo->tbo.bdev = &adev->mman.bdev; - amdgpu_ttm_placement_from_domain(bo, domain); - + amdgpu_ttm_placement_from_domain(bo, domains); r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, size, type, &bo->placement, page_align, &ctx, acc_size, NULL, resv, &amdgpu_ttm_bo_destroy); - if (unlikely(r != 0)) + if (unlikely(r && r != -ERESTARTSYS) && type == ttm_bo_type_device) { + if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) { + flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED; + goto retry; + } else if (domains != allowed_domains) { + domains = allowed_domains; + goto retry; + } + } + if (unlikely(r)) return r; if (adev->gmc.visible_vram_size < adev->gmc.real_vram_size && -- 2.14.1 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx ^ permalink raw reply related [flat|nested] 3+ messages in thread
[parent not found: <20180402070032.5306-1-david1.zhou-5C7GfCeVMHo@public.gmane.org>]
* [PATCH 2/2] drm/amdgpu: add bo flag that indicates KFD BOs [not found] ` <20180402070032.5306-1-david1.zhou-5C7GfCeVMHo@public.gmane.org> @ 2018-04-02 7:00 ` Chunming Zhou [not found] ` <20180402070032.5306-2-david1.zhou-5C7GfCeVMHo@public.gmane.org> 0 siblings, 1 reply; 3+ messages in thread From: Chunming Zhou @ 2018-04-02 7:00 UTC (permalink / raw) To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW Cc: Chunming Zhou, felix.kuehling-5C7GfCeVMHo KFD wraps amdgpu_bo_create, they have no fallback case which is different with amdgpu_gem_object_create. since upstream branch has no amdgpu_amdkfd_gpuvm.c, which need KFD guys add this flag to __alloc_memory_of_gpu: + flags |= AMDGPU_GEM_CREATE_KFD; Change-Id: Id3ac1a0bdd48633328d0b22c4c057fab4e94d0b3 Signed-off-by: Chunming Zhou <david1.zhou@amd.com> Cc: felix.kuehling@amd.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 3 ++- include/uapi/drm/amdgpu_drm.h | 2 ++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index f04bfab1eebd..72dabb9886be 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -420,7 +420,8 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev, unsigned long size, r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, size, type, &bo->placement, page_align, &ctx, acc_size, NULL, resv, &amdgpu_ttm_bo_destroy); - if (unlikely(r && r != -ERESTARTSYS) && type == ttm_bo_type_device) { + if (unlikely(r && r != -ERESTARTSYS) && type == ttm_bo_type_device && + !(flags & AMDGPU_GEM_CREATE_KFD)) { if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) { flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED; goto retry; diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index 0087799962cf..0be994be269f 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -98,6 +98,8 @@ extern "C" { #define AMDGPU_GEM_CREATE_VM_ALWAYS_VALID (1 << 6) /* Flag that BO sharing will be explicitly synchronized */ #define AMDGPU_GEM_CREATE_EXPLICIT_SYNC (1 << 7) +/* Flag that BO is created from KFD side */ +#define AMDGPU_GEM_CREATE_KFD (1 << 8) struct drm_amdgpu_gem_create_in { /** the requested memory size */ -- 2.14.1 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx ^ permalink raw reply related [flat|nested] 3+ messages in thread
[parent not found: <20180402070032.5306-2-david1.zhou-5C7GfCeVMHo@public.gmane.org>]
* Re: [PATCH 2/2] drm/amdgpu: add bo flag that indicates KFD BOs [not found] ` <20180402070032.5306-2-david1.zhou-5C7GfCeVMHo@public.gmane.org> @ 2018-04-02 18:55 ` Felix Kuehling 0 siblings, 0 replies; 3+ messages in thread From: Felix Kuehling @ 2018-04-02 18:55 UTC (permalink / raw) To: Chunming Zhou, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW Thanks for following up on that. I'd use a more generic name, maybe AMDGPU_GEM_CREATE_NO_FALLBACK. And I think you should exclude this flag in amdgpu_gem_create_ioctl so that allocations through the GEM API can't use this option. Regards, Felix On 2018-04-02 03:00 AM, Chunming Zhou wrote: > KFD wraps amdgpu_bo_create, they have no fallback case which is different > with amdgpu_gem_object_create. > since upstream branch has no amdgpu_amdkfd_gpuvm.c, which need KFD > guys add this flag to __alloc_memory_of_gpu: > + flags |= AMDGPU_GEM_CREATE_KFD; > > Change-Id: Id3ac1a0bdd48633328d0b22c4c057fab4e94d0b3 > Signed-off-by: Chunming Zhou <david1.zhou@amd.com> > Cc: felix.kuehling@amd.com > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 3 ++- > include/uapi/drm/amdgpu_drm.h | 2 ++ > 2 files changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c > index f04bfab1eebd..72dabb9886be 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c > @@ -420,7 +420,8 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev, unsigned long size, > r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, size, type, > &bo->placement, page_align, &ctx, acc_size, > NULL, resv, &amdgpu_ttm_bo_destroy); > - if (unlikely(r && r != -ERESTARTSYS) && type == ttm_bo_type_device) { > + if (unlikely(r && r != -ERESTARTSYS) && type == ttm_bo_type_device && > + !(flags & AMDGPU_GEM_CREATE_KFD)) { > if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) { > flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED; > goto retry; > diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h > index 0087799962cf..0be994be269f 100644 > --- a/include/uapi/drm/amdgpu_drm.h > +++ b/include/uapi/drm/amdgpu_drm.h > @@ -98,6 +98,8 @@ extern "C" { > #define AMDGPU_GEM_CREATE_VM_ALWAYS_VALID (1 << 6) > /* Flag that BO sharing will be explicitly synchronized */ > #define AMDGPU_GEM_CREATE_EXPLICIT_SYNC (1 << 7) > +/* Flag that BO is created from KFD side */ > +#define AMDGPU_GEM_CREATE_KFD (1 << 8) > > struct drm_amdgpu_gem_create_in { > /** the requested memory size */ _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2018-04-02 18:55 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2018-04-02 7:00 [PATCH 1/2] drm/amdgpu: Don't change preferred domian when fallback GTT v6 Chunming Zhou [not found] ` <20180402070032.5306-1-david1.zhou-5C7GfCeVMHo@public.gmane.org> 2018-04-02 7:00 ` [PATCH 2/2] drm/amdgpu: add bo flag that indicates KFD BOs Chunming Zhou [not found] ` <20180402070032.5306-2-david1.zhou-5C7GfCeVMHo@public.gmane.org> 2018-04-02 18:55 ` Felix Kuehling
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