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anv: Add support for fast clears on gen9

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Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Jason Ekstrand
2016-11-17 22:55:30 -08:00
parent dae8e52030
commit 5e8069a572
3 changed files with 176 additions and 29 deletions
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100
src/intel/vulkan/genX_cmd_buffer.c
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@@ -191,23 +191,87 @@ add_image_view_relocs(struct anv_cmd_buffer *cmd_buffer,
}
}
static enum isl_aux_usage
fb_attachment_get_aux_usage(struct anv_device *device,
struct anv_framebuffer *fb,
uint32_t attachment)
static bool
color_is_zero_one(VkClearColorValue value, enum isl_format format)
{
struct anv_image_view *iview = fb->attachments[attachment];
if (isl_format_has_int_channel(format)) {
for (unsigned i = 0; i < 4; i++) {
if (value.int32[i] != 0 && value.int32[i] != 1)
return false;
}
} else {
for (unsigned i = 0; i < 4; i++) {
if (value.float32[i] != 0.0f && value.float32[i] != 1.0f)
return false;
}
}
if (iview->image->aux_surface.isl.size == 0)
return ISL_AUX_USAGE_NONE; /* No aux surface */
return true;
}
static void
color_attachment_compute_aux_usage(struct anv_device *device,
struct anv_attachment_state *att_state,
struct anv_image_view *iview,
VkRect2D render_area,
union isl_color_value *fast_clear_color)
{
if (iview->image->aux_surface.isl.size == 0) {
att_state->aux_usage = ISL_AUX_USAGE_NONE;
att_state->input_aux_usage = ISL_AUX_USAGE_NONE;
att_state->fast_clear = false;
return;
}
assert(iview->image->aux_surface.isl.usage & ISL_SURF_USAGE_CCS_BIT);
if (isl_format_supports_lossless_compression(&device->info,
iview->isl.format))
return ISL_AUX_USAGE_CCS_E;
att_state->clear_color_is_zero_one =
color_is_zero_one(att_state->clear_value.color, iview->isl.format);
return ISL_AUX_USAGE_NONE;
if (att_state->pending_clear_aspects == VK_IMAGE_ASPECT_COLOR_BIT) {
/* Start off assuming fast clears are possible */
att_state->fast_clear = true;
/* Potentially, we could do partial fast-clears but doing so has crazy
* alignment restrictions. It's easier to just restrict to full size
* fast clears for now.
*/
if (render_area.offset.x != 0 ||
render_area.offset.y != 0 ||
render_area.extent.width != iview->extent.width ||
render_area.extent.height != iview->extent.height)
att_state->fast_clear = false;
if (att_state->fast_clear) {
memcpy(fast_clear_color->u32, att_state->clear_value.color.uint32,
sizeof(fast_clear_color->u32));
}
} else {
att_state->fast_clear = false;
}
if (isl_format_supports_lossless_compression(&device->info,
iview->isl.format)) {
att_state->aux_usage = ISL_AUX_USAGE_CCS_E;
att_state->input_aux_usage = ISL_AUX_USAGE_CCS_E;
} else if (att_state->fast_clear) {
att_state->aux_usage = ISL_AUX_USAGE_CCS_D;
/* From the Sky Lake PRM, RENDER_SURFACE_STATE::AuxiliarySurfaceMode:
*
* "If Number of Multisamples is MULTISAMPLECOUNT_1, AUX_CCS_D
* setting is only allowed if Surface Format supported for Fast
* Clear. In addition, if the surface is bound to the sampling
* engine, Surface Format must be supported for Render Target
* Compression for surfaces bound to the sampling engine."
*
* In other words, we can't sample from a fast-cleared image if it
* doesn't also support color compression.
*/
att_state->input_aux_usage = ISL_AUX_USAGE_NONE;
} else {
att_state->aux_usage = ISL_AUX_USAGE_NONE;
att_state->input_aux_usage = ISL_AUX_USAGE_NONE;
}
}
static bool
@@ -350,9 +414,12 @@ genX(cmd_buffer_setup_attachments)(struct anv_cmd_buffer *cmd_buffer,
struct anv_image_view *iview = framebuffer->attachments[i];
assert(iview->vk_format == att->format);
union isl_color_value clear_color = { .u32 = { 0, } };
if (att_aspects == VK_IMAGE_ASPECT_COLOR_BIT) {
state->attachments[i].aux_usage =
fb_attachment_get_aux_usage(cmd_buffer->device, framebuffer, i);
color_attachment_compute_aux_usage(cmd_buffer->device,
&state->attachments[i],
iview, begin->renderArea,
&clear_color);
struct isl_view view = iview->isl;
view.usage |= ISL_SURF_USAGE_RENDER_TARGET_BIT;
@@ -362,6 +429,7 @@ genX(cmd_buffer_setup_attachments)(struct anv_cmd_buffer *cmd_buffer,
.view = &view,
.aux_surf = &iview->image->aux_surface.isl,
.aux_usage = state->attachments[i].aux_usage,
.clear_color = clear_color,
.mocs = cmd_buffer->device->default_mocs);
add_image_view_relocs(cmd_buffer, iview,
@@ -369,6 +437,7 @@ genX(cmd_buffer_setup_attachments)(struct anv_cmd_buffer *cmd_buffer,
state->attachments[i].color_rt_state);
} else {
state->attachments[i].aux_usage = ISL_AUX_USAGE_NONE;
state->attachments[i].input_aux_usage = ISL_AUX_USAGE_NONE;
}
if (need_input_attachment_state(&pass->attachments[i])) {
@@ -386,11 +455,12 @@ genX(cmd_buffer_setup_attachments)(struct anv_cmd_buffer *cmd_buffer,
.surf = surf,
.view = &view,
.aux_surf = &iview->image->aux_surface.isl,
.aux_usage = state->attachments[i].aux_usage,
.aux_usage = state->attachments[i].input_aux_usage,
.clear_color = clear_color,
.mocs = cmd_buffer->device->default_mocs);
add_image_view_relocs(cmd_buffer, iview,
state->attachments[i].aux_usage,
state->attachments[i].input_aux_usage,
state->attachments[i].input_att_state);
}
}