use amdgpu_bo_create_vram_restricted_kernel to reserve bo at specified position and keep the original data intact.
Signed-off-by: Horace Chen <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 44 ++++++------------------------ 1 file changed, 8 insertions(+), 36 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 2ff2c54..c0c6eab 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -687,45 +687,17 @@ int amdgpu_fw_reserve_vram_init(struct amdgpu_device *adev) adev->fw_vram_usage.reserved_bo = NULL; if (adev->fw_vram_usage.size > 0 && - adev->fw_vram_usage.size <= vram_size) { + adev->fw_vram_usage.size <= vram_size) { + r = amdgpu_bo_create_vram_restricted_kernel(adev, + adev->fw_vram_usage.start_offset, + adev->fw_vram_usage.size, PAGE_SIZE, + AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | + AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS, + &adev->fw_vram_usage.reserved_bo, + &gpu_addr, &adev->fw_vram_usage.va); - r = amdgpu_bo_create(adev, adev->fw_vram_usage.size, - PAGE_SIZE, true, 0, - AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | - AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS, NULL, NULL, 0, - &adev->fw_vram_usage.reserved_bo); - if (r) - goto error_create; - - r = amdgpu_bo_reserve(adev->fw_vram_usage.reserved_bo, false); - if (r) - goto error_reserve; - r = amdgpu_bo_pin_restricted(adev->fw_vram_usage.reserved_bo, - AMDGPU_GEM_DOMAIN_VRAM, - adev->fw_vram_usage.start_offset, - (adev->fw_vram_usage.start_offset + - adev->fw_vram_usage.size), &gpu_addr); - if (r) - goto error_pin; - r = amdgpu_bo_kmap(adev->fw_vram_usage.reserved_bo, - &adev->fw_vram_usage.va); - if (r) - goto error_kmap; - - amdgpu_bo_unreserve(adev->fw_vram_usage.reserved_bo); } return r; - -error_kmap: - amdgpu_bo_unpin(adev->fw_vram_usage.reserved_bo); -error_pin: - amdgpu_bo_unreserve(adev->fw_vram_usage.reserved_bo); -error_reserve: - amdgpu_bo_unref(&adev->fw_vram_usage.reserved_bo); -error_create: - adev->fw_vram_usage.va = NULL; - adev->fw_vram_usage.reserved_bo = NULL; - return r; } -- 2.7.4 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
