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vk/gen8: Add support for push constants

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This commit is contained in:
Jason Ekstrand
2015-08-26 17:57:51 -07:00
parent 375a65d5de
commit 4e3ee043c0
3 changed files with 70 additions and 0 deletions
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38
src/vulkan/gen8_cmd_buffer.c
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@@ -29,6 +29,41 @@
#include "anv_private.h"
static void
gen8_cmd_buffer_flush_push_constants(struct anv_cmd_buffer *cmd_buffer)
{
uint32_t stage;
static const uint32_t push_constant_opcodes[] = {
[VK_SHADER_STAGE_VERTEX] = 21,
[VK_SHADER_STAGE_TESS_CONTROL] = 25, /* HS */
[VK_SHADER_STAGE_TESS_EVALUATION] = 26, /* DS */
[VK_SHADER_STAGE_GEOMETRY] = 22,
[VK_SHADER_STAGE_FRAGMENT] = 23,
[VK_SHADER_STAGE_COMPUTE] = 0,
};
uint32_t flushed = 0;
for_each_bit(stage, cmd_buffer->state.push_constants_dirty) {
struct anv_state state = anv_cmd_buffer_push_constants(cmd_buffer, stage);
if (state.offset == 0)
continue;
anv_batch_emit(&cmd_buffer->batch, GEN8_3DSTATE_CONSTANT_VS,
._3DCommandSubOpcode = push_constant_opcodes[stage],
.ConstantBody = {
.PointerToConstantBuffer0 = { .offset = state.offset },
.ConstantBuffer0ReadLength = DIV_ROUND_UP(state.alloc_size, 32),
});
flushed |= 1 << stage;
}
cmd_buffer->state.push_constants_dirty &= ~flushed;
}
static void
gen8_cmd_buffer_flush_state(struct anv_cmd_buffer *cmd_buffer)
{
@@ -84,6 +119,9 @@ gen8_cmd_buffer_flush_state(struct anv_cmd_buffer *cmd_buffer)
if (cmd_buffer->state.descriptors_dirty)
anv_flush_descriptor_sets(cmd_buffer);
if (cmd_buffer->state.push_constants_dirty)
gen8_cmd_buffer_flush_push_constants(cmd_buffer);
if (cmd_buffer->state.dirty & ANV_CMD_BUFFER_VP_DIRTY) {
struct anv_dynamic_vp_state *vp_state = cmd_buffer->state.vp_state;
anv_batch_emit(&cmd_buffer->batch, GEN8_3DSTATE_SCISSOR_STATE_POINTERS,