radv/winsys: Add function to get domains/flags from fd.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4751>

diff --git a/src/amd/vulkan/radv_radeon_winsys.h b/src/amd/vulkan/radv_radeon_winsys.h
index 60d08e371402c386d74b4b27bf07255a0ad842a3..ef2b4849692b8ad3be65f54dd68b23ab4e3e9444 100644 (file)
--- a/src/amd/vulkan/radv_radeon_winsys.h
+++ b/src/amd/vulkan/radv_radeon_winsys.h
@@ -242,6 +242,10 @@ struct radeon_winsys {
                              struct radeon_winsys_bo *bo,
                              int *fd);
 
+       bool (*buffer_get_flags_from_fd)(struct radeon_winsys *ws, int fd,
+                                        enum radeon_bo_domain *domains,
+                                        enum radeon_bo_flag *flags);
+
        void (*buffer_unmap)(struct radeon_winsys_bo *bo);
 
        void (*buffer_set_metadata)(struct radeon_winsys_bo *bo,

diff --git a/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c b/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c
index f60d11fd85a074438b29f659627f20c0d9ec2653..f6f9080d8e44c315382d75a7fcc2ae44a1c87eef 100644 (file)
--- a/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c
+++ b/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c
@@ -636,6 +636,52 @@ radv_amdgpu_winsys_get_fd(struct radeon_winsys *_ws,
        return true;
 }
 
+static bool
+radv_amdgpu_bo_get_flags_from_fd(struct radeon_winsys *_ws, int fd,
+                                 enum radeon_bo_domain *domains,
+                                 enum radeon_bo_flag *flags)
+{
+       struct radv_amdgpu_winsys *ws = radv_amdgpu_winsys(_ws);
+       struct amdgpu_bo_import_result result = {0};
+       struct amdgpu_bo_info info = {0};
+       int r;
+
+       *domains = 0;
+       *flags = 0;
+
+       r = amdgpu_bo_import(ws->dev, amdgpu_bo_handle_type_dma_buf_fd, fd, &result);
+       if (r)
+               return false;
+
+       r = amdgpu_bo_query_info(result.buf_handle, &info);
+       amdgpu_bo_free(result.buf_handle);
+       if (r)
+               return false;
+
+       if (info.preferred_heap & AMDGPU_GEM_DOMAIN_VRAM)
+               *domains |= RADEON_DOMAIN_VRAM;
+       if (info.preferred_heap & AMDGPU_GEM_DOMAIN_GTT)
+               *domains |= RADEON_DOMAIN_GTT;
+       if (info.preferred_heap & AMDGPU_GEM_DOMAIN_GDS)
+               *domains |= RADEON_DOMAIN_GDS;
+       if (info.preferred_heap & AMDGPU_GEM_DOMAIN_OA)
+               *domains |= RADEON_DOMAIN_OA;
+
+       if (info.alloc_flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
+               *flags |= RADEON_FLAG_CPU_ACCESS;
+       if (info.alloc_flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
+               *flags |= RADEON_FLAG_NO_CPU_ACCESS;
+       if (!(info.alloc_flags & AMDGPU_GEM_CREATE_EXPLICIT_SYNC))
+               *flags |= RADEON_FLAG_IMPLICIT_SYNC;
+       if (info.alloc_flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC)
+               *flags |= RADEON_FLAG_GTT_WC;
+       if (info.alloc_flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID)
+               *flags |= RADEON_FLAG_NO_INTERPROCESS_SHARING | RADEON_FLAG_PREFER_LOCAL_BO;
+       if (info.alloc_flags & AMDGPU_GEM_CREATE_VRAM_CLEARED)
+               *flags |= RADEON_FLAG_ZERO_VRAM;
+       return true;
+}
+
 static unsigned eg_tile_split(unsigned tile_split)
 {
        switch (tile_split) {
@@ -755,4 +801,5 @@ void radv_amdgpu_bo_init_functions(struct radv_amdgpu_winsys *ws)
        ws->base.buffer_set_metadata = radv_amdgpu_winsys_bo_set_metadata;
        ws->base.buffer_get_metadata = radv_amdgpu_winsys_bo_get_metadata;
        ws->base.buffer_virtual_bind = radv_amdgpu_winsys_bo_virtual_bind;
+       ws->base.buffer_get_flags_from_fd = radv_amdgpu_bo_get_flags_from_fd;
 }