On Fri, Aug 31, 2018 at 1:57 AM Dave Airlie <airl...@gmail.com> wrote:
>
> From: Dave Airlie <airl...@redhat.com>
>
> ac_surface.c: gfx6_compute_surface says
> /* DB doesn't support linear layouts. */
I think r100 was the last chip to support linear depth surfaces.
Alex
>
> Now if we expose linear depth and create a linear depth image
> and use CmdCopyImage to copy into it, we can't map the underlying
> memory and read it linearly which I think should work.
> ---
> src/amd/vulkan/radv_formats.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/src/amd/vulkan/radv_formats.c b/src/amd/vulkan/radv_formats.c
> index 6253c27b95d..e1b4b5e830f 100644
> --- a/src/amd/vulkan/radv_formats.c
> +++ b/src/amd/vulkan/radv_formats.c
> @@ -645,9 +645,8 @@ radv_physical_device_get_format_properties(struct
> radv_physical_device *physical
> if (radv_is_filter_minmax_format_supported(format))
> tiled |=
> VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_MINMAX_BIT_EXT;
>
> - /* GFX9 doesn't support linear depth surfaces */
> - if (physical_device->rad_info.chip_class >= GFX9)
> - linear = 0;
> + /* Don't support linear depth surfaces */
> + linear = 0;
> }
> } else {
> bool linear_sampling;
> --
> 2.17.1
>
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