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v3dv: ez_state/incompatible_ez_test could be recomputed at cmd_buffer

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As the values depends on several values that can be dynamic too.

Note that the current approach of this commit is keeping this info
duplicated on the pipeline and the cmd_buffer. The alternative would
be to just track it at the cmd_buffer, like we did recently with
z_updates_enable, but getting the values for ez_state/incompatible_ez
were more complex, so this commit still computes it when the pipeline
is created, and uses it as default value.

This is debatable though, and the alternative would be to just keep
ez_state/incompatible_ez_state at the command buffer.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27609>
This commit is contained in:
Alejandro Piñeiro
2024-04-08 14:11:20 +02:00
committed by Marge Bot
parent b6e473cd58
commit fbfb99cbc3
3 changed files with 78 additions and 31 deletions
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src/broadcom/vulkan/v3dvx_cmd_buffer.c
+30 -11
View File
@@ -1784,14 +1784,32 @@ v3dX(cmd_buffer_emit_varyings_state)(struct v3dv_cmd_buffer *cmd_buffer)
}
#if V3D_VERSION == 42
/* Updates job early Z state tracking. Returns False if EZ must be disabled
* for the current draw call.
/* Updates cmd_buffer, and their job, early z state tracking. Returns false if
* EZ must be disabled for the current draw call.
*/
static bool
job_update_ez_state(struct v3dv_job *job,
struct v3dv_pipeline *pipeline,
struct v3dv_cmd_buffer *cmd_buffer)
cmd_buffer_update_ez_state(struct v3dv_cmd_buffer *cmd_buffer,
struct v3dv_pipeline *pipeline)
{
struct vk_dynamic_graphics_state *dyn = &cmd_buffer->vk.dynamic_graphics_state;
/* Update first cmd_buffer ez_state tracking. If possible we reuse the
* values from the pipeline
*/
if (!BITSET_TEST(dyn->set, MESA_VK_DYNAMIC_DS_STENCIL_OP) &&
!BITSET_TEST(dyn->set, MESA_VK_DYNAMIC_DS_STENCIL_TEST_ENABLE) &&
!BITSET_TEST(dyn->set, MESA_VK_DYNAMIC_DS_DEPTH_TEST_ENABLE) &&
!BITSET_TEST(dyn->set, MESA_VK_DYNAMIC_DS_DEPTH_COMPARE_OP)) {
cmd_buffer->state.ez_state = pipeline->ez_state;
cmd_buffer->state.incompatible_ez_test =
pipeline->incompatible_ez_test;
} else {
v3dv_compute_ez_state(dyn, pipeline,
&cmd_buffer->state.ez_state,
&cmd_buffer->state.incompatible_ez_test);
}
struct v3dv_job *job = cmd_buffer->state.job;
assert(job);
/* If first_ez_state is V3D_EZ_DISABLED it means that we have already
* determined that we should disable EZ completely for all draw calls in
* this job. This will cause us to disable EZ for the entire job in the
@@ -1818,7 +1836,7 @@ job_update_ez_state(struct v3dv_job *job,
/* If this is the first time we update EZ state for this job we first check
* if there is anything that requires disabling it completely for the entire
* job (based on state that is not related to the current draw call and
* pipeline state).
* pipeline/cmd_buffer state).
*/
if (!job->decided_global_ez_enable) {
job->decided_global_ez_enable = true;
@@ -1884,11 +1902,12 @@ job_update_ez_state(struct v3dv_job *job,
}
/* Otherwise, we can decide to selectively enable or disable EZ for draw
* calls using the CFG_BITS packet based on the bound pipeline state.
* calls using the CFG_BITS packet based on the bound pipeline state, or
* cmd_buffer state if some stencil/depth flags were dynamic.
*/
bool disable_ez = false;
bool incompatible_test = false;
switch (pipeline->ez_state) {
switch (cmd_buffer->state.ez_state) {
case V3D_EZ_UNDECIDED:
/* If the pipeline didn't pick a direction but didn't disable, then go
* along with the current EZ state. This allows EZ optimization for Z
@@ -1902,7 +1921,7 @@ job_update_ez_state(struct v3dv_job *job,
* direction if we've decided on one.
*/
if (job->ez_state == V3D_EZ_UNDECIDED) {
job->ez_state = pipeline->ez_state;
job->ez_state = cmd_buffer->state.ez_state;
} else if (job->ez_state != pipeline->ez_state) {
disable_ez = true;
incompatible_test = true;
@@ -1911,7 +1930,7 @@ job_update_ez_state(struct v3dv_job *job,
case V3D_EZ_DISABLED:
disable_ez = true;
incompatible_test = pipeline->incompatible_ez_test;
incompatible_test = cmd_buffer->state.incompatible_ez_test;
break;
}
@@ -1964,7 +1983,7 @@ v3dX(cmd_buffer_emit_configuration_bits)(struct v3dv_cmd_buffer *cmd_buffer)
cmd_buffer->state.z_updates_enable = config.z_updates_enable;
#if V3D_VERSION == 42
bool enable_ez = job_update_ez_state(job, pipeline, cmd_buffer);
bool enable_ez = cmd_buffer_update_ez_state(cmd_buffer, pipeline);
config.early_z_enable = enable_ez;
config.early_z_updates_enable = config.early_z_enable &&
cmd_buffer->state.z_updates_enable;