From f5e1c740afb6fec8969234a066b1628246a6a08d Mon Sep 17 00:00:00 2001 From: =?utf8?q?Christian=20K=C3=B6nig?= Date: Thu, 20 Jul 2017 23:45:18 +0200 Subject: [PATCH] drm/amdgpu: cleanup kptr handling MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Don't keep around the same pointer twice. Signed-off-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 - drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 26 +++++++++++++--------- drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 4 ++-- 5 files changed, 19 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 0fa6438c152c..241abc140896 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -425,7 +425,6 @@ struct amdgpu_bo { struct ttm_bo_kmap_obj kmap; u64 flags; unsigned pin_count; - void *kptr; u64 tiling_flags; u64 metadata_flags; void *metadata; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c index 0a8ee2411180..cd95574705ee 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c @@ -250,7 +250,7 @@ static int amdgpufb_create(struct drm_fb_helper *helper, tmp = amdgpu_bo_gpu_offset(abo) - adev->mc.vram_start; info->fix.smem_start = adev->mc.aper_base + tmp; info->fix.smem_len = amdgpu_bo_size(abo); - info->screen_base = abo->kptr; + info->screen_base = amdgpu_bo_kptr(abo); info->screen_size = amdgpu_bo_size(abo); drm_fb_helper_fill_var(info, &rfbdev->helper, sizes->fb_width, sizes->fb_height); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 3ec43cf9ad78..8fddea4bc146 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -609,16 +609,16 @@ err: int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr) { - bool is_iomem; + void *kptr; long r; if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS) return -EPERM; - if (bo->kptr) { - if (ptr) { - *ptr = bo->kptr; - } + kptr = amdgpu_bo_kptr(bo); + if (kptr) { + if (ptr) + *ptr = kptr; return 0; } @@ -631,19 +631,23 @@ int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr) if (r) return r; - bo->kptr = ttm_kmap_obj_virtual(&bo->kmap, &is_iomem); if (ptr) - *ptr = bo->kptr; + *ptr = amdgpu_bo_kptr(bo); return 0; } +void *amdgpu_bo_kptr(struct amdgpu_bo *bo) +{ + bool is_iomem; + + return ttm_kmap_obj_virtual(&bo->kmap, &is_iomem); +} + void amdgpu_bo_kunmap(struct amdgpu_bo *bo) { - if (bo->kptr == NULL) - return; - bo->kptr = NULL; - ttm_bo_kunmap(&bo->kmap); + if (bo->kmap.bo) + ttm_bo_kunmap(&bo->kmap); } struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h index 833b172a2c2a..f53d53d7a0af 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h @@ -147,6 +147,7 @@ int amdgpu_bo_create_kernel(struct amdgpu_device *adev, void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr, void **cpu_addr); int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr); +void *amdgpu_bo_kptr(struct amdgpu_bo *bo); void amdgpu_bo_kunmap(struct amdgpu_bo *bo); struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo); void amdgpu_bo_unref(struct amdgpu_bo **bo); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 250c8e80e646..9255c3e579fc 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -1060,7 +1060,7 @@ static int amdgpu_vm_update_level(struct amdgpu_device *adev, shadow = parent->bo->shadow; if (vm->use_cpu_for_update) { - pd_addr = (unsigned long)parent->bo->kptr; + pd_addr = (unsigned long)amdgpu_bo_kptr(parent->bo); r = amdgpu_vm_wait_pd(adev, vm, AMDGPU_FENCE_OWNER_VM); if (unlikely(r)) return r; @@ -1401,7 +1401,7 @@ static int amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params, pt = entry->bo; if (use_cpu_update) { - pe_start = (unsigned long)pt->kptr; + pe_start = (unsigned long)amdgpu_bo_kptr(pt); } else { if (pt->shadow) { pe_start = amdgpu_bo_gpu_offset(pt->shadow); -- 2.20.1