From a71470f6af615ad876e437d7e531bf5f674f604e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michel=20D=C3=A4nzer?= Date: Fri, 22 Jun 2018 18:54:03 +0200 Subject: [PATCH 5380/5725] drm/amdgpu: Add AMDGPU_GPU_PAGES_IN_CPU_PAGE define MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit To hopefully make the code dealing with GPU vs CPU pages a little clearer. Suggested-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher Signed-off-by: Raveendra Talabattula --- drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c | 8 ++++---- drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h | 2 ++ drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 8 ++++---- 3 files changed, 10 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c index 5586874..5d141ab 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c @@ -231,7 +231,7 @@ int amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset, } t = offset / AMDGPU_GPU_PAGE_SIZE; - p = t / (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE); + p = t / AMDGPU_GPU_PAGES_IN_CPU_PAGE; for (i = 0; i < pages; i++, p++) { #ifdef CONFIG_DRM_AMDGPU_GART_DEBUGFS adev->gart.pages[p] = NULL; @@ -240,7 +240,7 @@ int amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset, if (!adev->gart.ptr) continue; - for (j = 0; j < (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE); j++, t++) { + for (j = 0; j < AMDGPU_GPU_PAGES_IN_CPU_PAGE; j++, t++) { amdgpu_gmc_set_pte_pde(adev, adev->gart.ptr, t, page_base, flags); page_base += AMDGPU_GPU_PAGE_SIZE; @@ -279,7 +279,7 @@ int amdgpu_gart_map(struct amdgpu_device *adev, uint64_t offset, for (i = 0; i < pages; i++) { page_base = dma_addr[i]; - for (j = 0; j < (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE); j++, t++) { + for (j = 0; j < AMDGPU_GPU_PAGES_IN_CPU_PAGE; j++, t++) { amdgpu_gmc_set_pte_pde(adev, dst, t, page_base, flags); page_base += AMDGPU_GPU_PAGE_SIZE; } @@ -316,7 +316,7 @@ int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset, #ifdef CONFIG_DRM_AMDGPU_GART_DEBUGFS t = offset / AMDGPU_GPU_PAGE_SIZE; - p = t / (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE); + p = t / AMDGPU_GPU_PAGES_IN_CPU_PAGE; for (i = 0; i < pages; i++, p++) adev->gart.pages[p] = pagelist ? pagelist[i] : NULL; #endif diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h index 5ee8f20..9ff6288 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h @@ -37,6 +37,8 @@ struct amdgpu_bo; #define AMDGPU_GPU_PAGE_SHIFT 12 #define AMDGPU_GPU_PAGE_ALIGN(a) (((a) + AMDGPU_GPU_PAGE_MASK) & ~AMDGPU_GPU_PAGE_MASK) +#define AMDGPU_GPU_PAGES_IN_CPU_PAGE (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE) + struct amdgpu_gart { struct amdgpu_bo *bo; void *ptr; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 063f0d0..adb61a2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -1574,13 +1574,13 @@ static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev, if (nodes) { addr = nodes->start << PAGE_SHIFT; max_entries = (nodes->size - pfn) * - (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE); + AMDGPU_GPU_PAGES_IN_CPU_PAGE; switch (mem->mem_type) { case TTM_PL_TT: max_entries = min(max_entries, 16ull * 1024ull); for (count = 1; - count < max_entries / (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE); + count < max_entries / AMDGPU_GPU_PAGES_IN_CPU_PAGE; ++count) { uint64_t idx = pfn + count; @@ -1594,7 +1594,7 @@ static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev, dma_addr = pages_addr; } else { addr = pages_addr[pfn]; - max_entries = count * (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE); + max_entries = count * AMDGPU_GPU_PAGES_IN_CPU_PAGE; } break; case AMDGPU_PL_DGMA_IMPORT: @@ -1630,7 +1630,7 @@ static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev, if (r) return r; - pfn += (last - start + 1) / (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE); + pfn += (last - start + 1) / AMDGPU_GPU_PAGES_IN_CPU_PAGE; if (nodes && nodes->size == pfn) { pfn = 0; ++nodes; -- 2.7.4