From 866eedef4cc6d8e06c1888860ef2b98c8f6aaca4 Mon Sep 17 00:00:00 2001 From: Pierre-Eric Pelloux-Prayer Date: Wed, 28 Jan 2026 16:47:01 +0100 Subject: [PATCH] drm/amdgpu: add amdgpu_gtt_node_to_byte_offset helper MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Having a helper avoids code duplication. Signed-off-by: Pierre-Eric Pelloux-Prayer Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h index 871388b86503..c43f352df953 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h @@ -220,6 +220,14 @@ static inline u64 amdgpu_compute_gart_address(struct amdgpu_gmc *gmc, return gmc->gart_start + entity->gart_window_offs[index]; } +/** + * amdgpu_gtt_node_to_byte_offset() - Returns a byte offset of a gtt node + */ +static inline u64 amdgpu_gtt_node_to_byte_offset(const struct drm_mm_node *gtt_node) +{ + return gtt_node->start * (u64)PAGE_SIZE; +} + void amdgpu_ttm_tt_set_user_pages(struct ttm_tt *ttm, struct amdgpu_hmm_range *range); int amdgpu_ttm_tt_get_userptr(const struct ttm_buffer_object *tbo, uint64_t *user_addr);