From: Christian König christian.koenig@amd.com
It doesn't make much sense to count those numbers twice.
Signed-off-by: Christian König christian.koenig@amd.com --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 - drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c | 18 +++++++++++++++--- drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 5 +++-- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 2 -- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 1 + 5 files changed, 19 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 67c5286..aff89d7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1486,7 +1486,6 @@ struct amdgpu_device { struct amdgpu_wb wb; atomic64_t vram_usage; atomic64_t vram_vis_usage; - atomic64_t gtt_usage; atomic64_t num_bytes_moved; atomic64_t num_evictions; atomic64_t num_vram_cpu_page_faults; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c index 97c63ee..0e47c20 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c @@ -241,6 +241,20 @@ static void amdgpu_gtt_mgr_del(struct ttm_mem_type_manager *man, }
/** + * amdgpu_gtt_mgr_usage - return usage of GTT domain + * + * @man: TTM memory type manager + * + * Return how many bytes are used in the GTT domain + */ +uint64_t amdgpu_gtt_mgr_usage(struct ttm_mem_type_manager *man) +{ + struct amdgpu_gtt_mgr *mgr = man->priv; + + return (u64)(man->size - READ_ONCE(mgr->available)) * PAGE_SIZE; +} + +/** * amdgpu_gtt_mgr_debug - dump VRAM table * * @man: TTM memory type manager @@ -251,7 +265,6 @@ static void amdgpu_gtt_mgr_del(struct ttm_mem_type_manager *man, static void amdgpu_gtt_mgr_debug(struct ttm_mem_type_manager *man, struct drm_printer *printer) { - struct amdgpu_device *adev = amdgpu_ttm_adev(man->bdev); struct amdgpu_gtt_mgr *mgr = man->priv;
spin_lock(&mgr->lock); @@ -259,8 +272,7 @@ static void amdgpu_gtt_mgr_debug(struct ttm_mem_type_manager *man, spin_unlock(&mgr->lock);
drm_printf(printer, "man size:%llu pages, gtt available:%llu pages, usage:%lluMB\n", - man->size, mgr->available, - (u64)atomic64_read(&adev->gtt_usage) >> 20); + man->size, mgr->available, amdgpu_gtt_mgr_usage(man) >> 20); }
const struct ttm_mem_type_manager_func amdgpu_gtt_mgr_func = { diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index a96c703..3209198 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -461,7 +461,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file ui64 = atomic64_read(&adev->vram_vis_usage); return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0; case AMDGPU_INFO_GTT_USAGE: - ui64 = atomic64_read(&adev->gtt_usage); + ui64 = amdgpu_gtt_mgr_usage(&adev->mman.bdev.man[TTM_PL_TT]); return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0; case AMDGPU_INFO_GDS_CONFIG: { struct drm_amdgpu_info_gds gds_info; @@ -514,7 +514,8 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file mem.gtt.total_heap_size *= PAGE_SIZE; mem.gtt.usable_heap_size = mem.gtt.total_heap_size - adev->gart_pin_size; - mem.gtt.heap_usage = atomic64_read(&adev->gtt_usage); + mem.gtt.heap_usage = + amdgpu_gtt_mgr_usage(&adev->mman.bdev.man[TTM_PL_TT]); mem.gtt.max_allocation = mem.gtt.usable_heap_size * 3 / 4;
return copy_to_user(out, &mem, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 16f31cb..d67a997 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -62,7 +62,6 @@ static void amdgpu_update_memory_usage(struct amdgpu_device *adev, if (new_mem) { switch (new_mem->mem_type) { case TTM_PL_TT: - atomic64_add(new_mem->size, &adev->gtt_usage); break; case TTM_PL_VRAM: atomic64_add(new_mem->size, &adev->vram_usage); @@ -75,7 +74,6 @@ static void amdgpu_update_memory_usage(struct amdgpu_device *adev, if (old_mem) { switch (old_mem->mem_type) { case TTM_PL_TT: - atomic64_sub(old_mem->size, &adev->gtt_usage); break; case TTM_PL_VRAM: atomic64_sub(old_mem->size, &adev->vram_usage); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h index 0e2399f..1307ab5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h @@ -66,6 +66,7 @@ int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man, struct ttm_buffer_object *tbo, const struct ttm_place *place, struct ttm_mem_reg *mem); +uint64_t amdgpu_gtt_mgr_usage(struct ttm_mem_type_manager *man);
int amdgpu_copy_buffer(struct amdgpu_ring *ring, uint64_t src_offset, uint64_t dst_offset, uint32_t byte_count,