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anv/cmd_buffer: Always set up a null surface state

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We're about to start requiring it in yet another case and calculating
exactly when one is needed is starting to get prohibitively expensive.
A single surface state doesn't take up that much space so we may as well
create one all the time.

Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Cc: <mesa-stable@lists.freedesktop.org>
This commit is contained in:
Jason Ekstrand
2017-04-07 10:31:01 -07:00
parent d6588d9962
commit 02eca8b6f8
1 changed files with 19 additions and 31 deletions
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18
src/intel/vulkan/genX_cmd_buffer.c
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@@ -411,23 +411,15 @@ genX(cmd_buffer_setup_attachments)(struct anv_cmd_buffer *cmd_buffer,
VK_ERROR_OUT_OF_HOST_MEMORY);
}
bool need_null_state = false;
unsigned num_states = 0;
/* Reserve one for the NULL state. */
unsigned num_states = 1;
for (uint32_t i = 0; i < pass->attachment_count; ++i) {
if (vk_format_is_color(pass->attachments[i].format)) {
if (vk_format_is_color(pass->attachments[i].format))
num_states++;
} else {
/* We need a null state for any depth-stencil-only subpasses.
* Importantly, this includes depth/stencil clears so we create one
* whenever we have depth or stencil
*/
need_null_state = true;
}
if (need_input_attachment_state(&pass->attachments[i]))
num_states++;
}
num_states += need_null_state;
const uint32_t ss_stride = align_u32(isl_dev->ss.size, isl_dev->ss.align);
state->render_pass_states =
@@ -437,11 +429,9 @@ genX(cmd_buffer_setup_attachments)(struct anv_cmd_buffer *cmd_buffer,
struct anv_state next_state = state->render_pass_states;
next_state.alloc_size = isl_dev->ss.size;
if (need_null_state) {
state->null_surface_state = next_state;
next_state.offset += ss_stride;
next_state.map += ss_stride;
}
for (uint32_t i = 0; i < pass->attachment_count; ++i) {
if (vk_format_is_color(pass->attachments[i].format)) {
@@ -463,7 +453,6 @@ genX(cmd_buffer_setup_attachments)(struct anv_cmd_buffer *cmd_buffer,
ANV_FROM_HANDLE(anv_framebuffer, framebuffer, begin->framebuffer);
assert(pass->attachment_count == framebuffer->attachment_count);
if (need_null_state) {
struct GENX(RENDER_SURFACE_STATE) null_ss = {
.SurfaceType = SURFTYPE_NULL,
.SurfaceArray = framebuffer->layers > 0,
@@ -480,7 +469,6 @@ genX(cmd_buffer_setup_attachments)(struct anv_cmd_buffer *cmd_buffer,
};
GENX(RENDER_SURFACE_STATE_pack)(NULL, state->null_surface_state.map,
&null_ss);
}
for (uint32_t i = 0; i < pass->attachment_count; ++i) {
struct anv_render_pass_attachment *att = &pass->attachments[i];