radv: Really use correct HTILE expanded words.

When transitioning to an htile compressed depth format, Set the full
depth range, so later rasterization can pass HiZ. Previously, for depth
only formats, the depth range was set to 0 to 0. This caused unwanted
HiZ rejections with a VK_FORMAT_D16_UNORM depth buffer
(VK_FORMAT_D32_SFLOAT was not affected somehow).

These values are derived from PAL [0], since I can't find the
specification describing the htile values.

[0] https://github.com/GPUOpen-Drivers/pal/blob/5cba4ecbda9452773f59692f5915301e7db4a183/src/core/hw/gfxip/gfx9/gfx9MaskRam.cpp#L1500

CC: Dave Airlie <airlied@redhat.com>
CC: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
CC: mesa-stable@lists.freedesktop.org
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Tested-by: Grazvydas Ignotas <notasas@gmail.com>
Fixes: 5158603182fe7435 "radv: Use correct HTILE expanded words."

diff --git a/src/amd/vulkan/radv_cmd_buffer.c b/src/amd/vulkan/radv_cmd_buffer.c
index 8a384b1..2b41bae 100644 (file)
--- a/src/amd/vulkan/radv_cmd_buffer.c
+++ b/src/amd/vulkan/radv_cmd_buffer.c
@@ -3440,8 +3440,8 @@ void radv_CmdEndRenderPass(
 
 /*
  * For HTILE we have the following interesting clear words:
- *   0x0000030f: Uncompressed for depth+stencil HTILE.
- *   0x0000000f: Uncompressed for depth only HTILE.
+ *   0xfffff30f: Uncompressed, full depth range, for depth+stencil HTILE
+ *   0xfffc000f: Uncompressed, full depth range, for depth only HTILE.
  *   0xfffffff0: Clear depth to 1.0
  *   0x00000000: Clear depth to 0.0
  */
@@ -3489,7 +3489,7 @@ static void radv_handle_depth_image_transition(struct radv_cmd_buffer *cmd_buffe
                radv_initialize_htile(cmd_buffer, image, range, 0);
        } else if (!radv_layout_is_htile_compressed(image, src_layout, src_queue_mask) &&
                   radv_layout_is_htile_compressed(image, dst_layout, dst_queue_mask)) {
-               uint32_t clear_value = vk_format_is_stencil(image->vk_format) ? 0x30f : 0xf;
+               uint32_t clear_value = vk_format_is_stencil(image->vk_format) ? 0xfffff30f : 0xfffc000f;
                radv_initialize_htile(cmd_buffer, image, range, clear_value);
        } else if (radv_layout_is_htile_compressed(image, src_layout, src_queue_mask) &&
                   !radv_layout_is_htile_compressed(image, dst_layout, dst_queue_mask)) {