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anv/gen10: Implement WaSampleOffsetIZ workaround

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We already have this workaround in OpenGL driver.
See Mesa commit 3cf4fe2219.

Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Cc: Nanley Chery <nanley.g.chery@intel.com>
Cc: Rafael Antognolli <rafael.antognolli@intel.com>
This commit is contained in:
Anuj Phogat
2017-11-07 11:13:15 -08:00
parent 20e8dfcca9
commit aacf1943c0
1 changed files with 61 additions and 0 deletions
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61
src/intel/vulkan/genX_state.c
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@@ -35,6 +35,59 @@
#include "vk_util.h"
#if GEN_GEN == 10
/**
* From Gen10 Workarounds page in h/w specs:
* WaSampleOffsetIZ:
* "Prior to the 3DSTATE_SAMPLE_PATTERN driver must ensure there are no
* markers in the pipeline by programming a PIPE_CONTROL with stall."
*/
static void
gen10_emit_wa_cs_stall_flush(struct anv_batch *batch)
{
anv_batch_emit(batch, GENX(PIPE_CONTROL), pc) {
pc.CommandStreamerStallEnable = true;
pc.StallAtPixelScoreboard = true;
}
}
/**
* From Gen10 Workarounds page in h/w specs:
* WaSampleOffsetIZ:_cs_stall_flush
* "When 3DSTATE_SAMPLE_PATTERN is programmed, driver must then issue an
* MI_LOAD_REGISTER_IMM command to an offset between 0x7000 and 0x7FFF(SVL)
* after the command to ensure the state has been delivered prior to any
* command causing a marker in the pipeline."
*/
static void
gen10_emit_wa_lri_to_cache_mode_zero(struct anv_batch *batch)
{
/* Before changing the value of CACHE_MODE_0 register, GFX pipeline must
* be idle; i.e., full flush is required.
*/
anv_batch_emit(batch, GENX(PIPE_CONTROL), pc) {
pc.DepthCacheFlushEnable = true;
pc.DCFlushEnable = true;
pc.RenderTargetCacheFlushEnable = true;
pc.InstructionCacheInvalidateEnable = true;
pc.StateCacheInvalidationEnable = true;
pc.TextureCacheInvalidationEnable = true;
pc.VFCacheInvalidationEnable = true;
pc.ConstantCacheInvalidationEnable =true;
}
/* Write to CACHE_MODE_0 (0x7000) */
uint32_t cache_mode_0 = 0;
anv_pack_struct(&cache_mode_0, GENX(CACHE_MODE_0));
anv_batch_emit(batch, GENX(MI_LOAD_REGISTER_IMM), lri) {
lri.RegisterOffset = GENX(CACHE_MODE_0_num);
lri.DataDWord = cache_mode_0;
}
}
#endif
VkResult
genX(init_device_state)(struct anv_device *device)
{
@@ -82,6 +135,10 @@ genX(init_device_state)(struct anv_device *device)
#if GEN_GEN >= 8
anv_batch_emit(&batch, GENX(3DSTATE_WM_CHROMAKEY), ck);
#if GEN_GEN == 10
gen10_emit_wa_cs_stall_flush(&batch);
#endif
/* See the Vulkan 1.0 spec Table 24.1 "Standard sample locations" and
* VkPhysicalDeviceFeatures::standardSampleLocations.
*/
@@ -96,6 +153,10 @@ genX(init_device_state)(struct anv_device *device)
}
#endif
#if GEN_GEN == 10
gen10_emit_wa_lri_to_cache_mode_zero(&batch);
#endif
anv_batch_emit(&batch, GENX(MI_BATCH_BUFFER_END), bbe);
assert(batch.next <= batch.end);