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anv: Allow PMA optimization to be enabled in secondary command buffers

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This was never enabled in secondary buffers because hiz_enabled was
never set to true for those.

If the app provides a framebuffer in the inheritance info when beginning
a secondary buffer, we can determine if HiZ is enabled and therefore
allow the PMA optimization to be enabled within the command buffer.

This improves performance by ~13% on an internal benchmark on Skylake.

v2: Use anv_cmd_buffer_get_depth_stencil_view().

Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Alex Smith
2018-01-05 11:09:19 +00:00
parent 7e025def6d
commit 0d8b9c529c
1 changed files with 21 additions and 1 deletions
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22
src/intel/vulkan/genX_cmd_buffer.c
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@@ -977,11 +977,31 @@ genX(BeginCommandBuffer)(
anv_render_pass_from_handle(pBeginInfo->pInheritanceInfo->renderPass);
cmd_buffer->state.subpass =
&cmd_buffer->state.pass->subpasses[pBeginInfo->pInheritanceInfo->subpass];
cmd_buffer->state.framebuffer = NULL;
/* This is optional in the inheritance info. */
cmd_buffer->state.framebuffer =
anv_framebuffer_from_handle(pBeginInfo->pInheritanceInfo->framebuffer);
result = genX(cmd_buffer_setup_attachments)(cmd_buffer,
cmd_buffer->state.pass, NULL);
/* Record that HiZ is enabled if we can. */
if (cmd_buffer->state.framebuffer) {
const struct anv_image_view * const iview =
anv_cmd_buffer_get_depth_stencil_view(cmd_buffer);
if (iview) {
VkImageLayout layout =
cmd_buffer->state.subpass->depth_stencil_attachment.layout;
enum isl_aux_usage aux_usage =
anv_layout_to_aux_usage(&cmd_buffer->device->info, iview->image,
VK_IMAGE_ASPECT_DEPTH_BIT, layout);
cmd_buffer->state.hiz_enabled = aux_usage == ISL_AUX_USAGE_HIZ;
}
}
cmd_buffer->state.dirty |= ANV_CMD_DIRTY_RENDER_TARGETS;
}