drm/amdgpu: Add AMDGPU_GPU_PAGES_IN_CPU_PAGE define

To hopefully make the code dealing with GPU vs CPU pages a little
clearer.

Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
index dd11b7313ca0..36113cb60ca2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
@@ -234,7 +234,7 @@ 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;
@@ -243,7 +243,7 @@ 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;
@@ -282,7 +282,7 @@ 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;
                 }
@@ -319,7 +319,7 @@ 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