From ca66fb8fbb9b9690591b4e85707a4f31cb042adf Mon Sep 17 00:00:00 2001 From: Oak Zeng Date: Mon, 6 May 2019 09:48:37 -0500 Subject: [PATCH] drm/amdgpu: Add interface to alloc gws from amdgpu Add amdgpu_amdkfd interface to alloc and free gws from amdgpu Signed-off-by: Oak Zeng Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 34 ++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 2 ++ 2 files changed, 36 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c index a4780d5532be..4af3989e4a75 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c @@ -339,6 +339,40 @@ void amdgpu_amdkfd_free_gtt_mem(struct kgd_dev *kgd, void *mem_obj) amdgpu_bo_unref(&(bo)); } +int amdgpu_amdkfd_alloc_gws(struct kgd_dev *kgd, size_t size, + void **mem_obj) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)kgd; + struct amdgpu_bo *bo = NULL; + struct amdgpu_bo_param bp; + int r; + + memset(&bp, 0, sizeof(bp)); + bp.size = size; + bp.byte_align = 1; + bp.domain = AMDGPU_GEM_DOMAIN_GWS; + bp.flags = AMDGPU_GEM_CREATE_NO_CPU_ACCESS; + bp.type = ttm_bo_type_device; + bp.resv = NULL; + + r = amdgpu_bo_create(adev, &bp, &bo); + if (r) { + dev_err(adev->dev, + "failed to allocate gws BO for amdkfd (%d)\n", r); + return r; + } + + *mem_obj = bo; + return 0; +} + +void amdgpu_amdkfd_free_gws(struct kgd_dev *kgd, void *mem_obj) +{ + struct amdgpu_bo *bo = (struct amdgpu_bo *)mem_obj; + + amdgpu_bo_unref(&bo); +} + uint32_t amdgpu_amdkfd_get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type) { diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h index 57006432a36e..c00c9749406e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h @@ -153,6 +153,8 @@ int amdgpu_amdkfd_alloc_gtt_mem(struct kgd_dev *kgd, size_t size, void **mem_obj, uint64_t *gpu_addr, void **cpu_ptr, bool mqd_gfx9); void amdgpu_amdkfd_free_gtt_mem(struct kgd_dev *kgd, void *mem_obj); +int amdgpu_amdkfd_alloc_gws(struct kgd_dev *kgd, size_t size, void **mem_obj); +void amdgpu_amdkfd_free_gws(struct kgd_dev *kgd, void *mem_obj); uint32_t amdgpu_amdkfd_get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type); void amdgpu_amdkfd_get_local_mem_info(struct kgd_dev *kgd, -- 2.45.2