[Beignet] [PATCH 8/8] SKL: fix skl LD fail.
Yang Rong
rong.r.yang at intel.com
Thu Jan 29 00:16:23 PST 2015
Skl's LD message payload order is changed from u, lod, v, w to u, v, lod, w.
Add the Gen9Context and Selection9 to handle it.
Skl Still use Gen8Encoder.
Signed-off-by: Yang Rong <rong.r.yang at intel.com>
---
backend/src/CMakeLists.txt | 2 +
backend/src/backend/gen_insn_selection.cpp | 67 ++++++++++++++++++++++++------
backend/src/backend/gen_insn_selection.hpp | 7 ++++
backend/src/backend/gen_program.cpp | 3 +-
4 files changed, 66 insertions(+), 13 deletions(-)
diff --git a/backend/src/CMakeLists.txt b/backend/src/CMakeLists.txt
index ce83c62..9518888 100644
--- a/backend/src/CMakeLists.txt
+++ b/backend/src/CMakeLists.txt
@@ -103,6 +103,8 @@ set (GBE_SRC
backend/gen75_context.cpp
backend/gen8_context.hpp
backend/gen8_context.cpp
+ backend/gen9_context.hpp
+ backend/gen9_context.cpp
backend/gen_program.cpp
backend/gen_program.hpp
backend/gen_program.h
diff --git a/backend/src/backend/gen_insn_selection.cpp b/backend/src/backend/gen_insn_selection.cpp
index 65842ff..4d0b979 100644
--- a/backend/src/backend/gen_insn_selection.cpp
+++ b/backend/src/backend/gen_insn_selection.cpp
@@ -249,6 +249,9 @@ namespace gbe
this->vectorList.push_back(vec);
}
+#define LD_MSG_ORDER_IVB 7
+#define LD_MSG_ORDER_SKL 9
+
///////////////////////////////////////////////////////////////////////////
// Maximal munch selection on DAG
///////////////////////////////////////////////////////////////////////////
@@ -358,6 +361,8 @@ namespace gbe
void setHas32X32Mul(bool b) { bHas32X32Mul = b; }
bool hasLongType() const { return bHasLongType; }
void setHasLongType(bool b) { bHasLongType = b; }
+ void setLdMsgOrder(uint32_t type) { ldMsgOrder = type; }
+ uint32_t getLdMsgOrder() const { return ldMsgOrder; }
/*! indicate whether a register is a scalar/uniform register. */
INLINE bool isScalarReg(const ir::Register ®) const {
const ir::RegisterData ®Data = getRegisterData(reg);
@@ -656,6 +661,7 @@ namespace gbe
uint16_t currAuxLabel;
bool bHas32X32Mul;
bool bHasLongType;
+ uint32_t ldMsgOrder;
INLINE ir::LabelIndex newAuxLabel()
{
currAuxLabel++;
@@ -695,7 +701,7 @@ namespace gbe
curr(ctx.getSimdWidth()), file(ctx.getFunction().getRegisterFile()),
maxInsnNum(ctx.getFunction().getLargestBlockSize()), dagPool(maxInsnNum),
stateNum(0), vectorNum(0), bwdCodeGeneration(false), currAuxLabel(ctx.getFunction().labelNum()),
- bHas32X32Mul(false), bHasLongType(false)
+ bHas32X32Mul(false), bHasLongType(false), ldMsgOrder(LD_MSG_ORDER_IVB)
{
const ir::Function &fn = ctx.getFunction();
this->regNum = fn.regNum();
@@ -1853,6 +1859,12 @@ namespace gbe
this->opaque->setHasLongType(true);
}
+ Selection9::Selection9(GenContext &ctx) : Selection(ctx) {
+ this->opaque->setHas32X32Mul(true);
+ this->opaque->setHasLongType(true);
+ this->opaque->setLdMsgOrder(LD_MSG_ORDER_SKL);
+ }
+
void Selection::Opaque::TYPED_WRITE(GenRegister *msgs, uint32_t msgNum,
uint32_t bti, bool is3D) {
uint32_t elemID = 0;
@@ -4299,6 +4311,44 @@ namespace gbe
DECL_PATTERN(SampleInstruction)
{
+ INLINE void emitLd_ivb(Selection::Opaque &sel, const ir::SampleInstruction &insn,
+ GenRegister msgPayloads[4], uint32_t &msgLen) const
+ {
+ // pre SKL: U, lod, [V], [W]
+ using namespace ir;
+ GBE_ASSERT(insn.getSrcType() != TYPE_FLOAT);
+ uint32_t srcNum = insn.getSrcNum();
+ msgPayloads[0] = sel.selReg(insn.getSrc(0), insn.getSrcType());
+ msgPayloads[1] = sel.selReg(sel.reg(FAMILY_DWORD), TYPE_U32);
+ sel.MOV(msgPayloads[1], GenRegister::immud(0));
+ if (srcNum > 1)
+ msgPayloads[2] = sel.selReg(insn.getSrc(1), insn.getSrcType());
+ if (srcNum > 2)
+ msgPayloads[3] = sel.selReg(insn.getSrc(2), insn.getSrcType());
+ // Clear the lod to zero.
+ msgLen = srcNum + 1;
+ }
+
+ INLINE void emitLd_skl(Selection::Opaque &sel, const ir::SampleInstruction &insn,
+ GenRegister msgPayloads[4], uint32_t &msgLen) const
+ {
+ // SKL: U, [V], [lod], [W]
+ using namespace ir;
+ GBE_ASSERT(insn.getSrcType() != TYPE_FLOAT);
+ uint32_t srcNum = msgLen = insn.getSrcNum();
+ msgPayloads[0] = sel.selReg(insn.getSrc(0), insn.getSrcType());
+ if (srcNum > 1)
+ msgPayloads[1] = sel.selReg(insn.getSrc(1), insn.getSrcType());
+ if (srcNum > 2) {
+ // Clear the lod to zero.
+ msgPayloads[2] = sel.selReg(sel.reg(FAMILY_DWORD), TYPE_U32);
+ sel.MOV(msgPayloads[2], GenRegister::immud(0));
+ msgLen += 1;
+
+ msgPayloads[3] = sel.selReg(insn.getSrc(2), insn.getSrcType());
+ }
+ }
+
INLINE bool emitOne(Selection::Opaque &sel, const ir::SampleInstruction &insn, bool &markChildren) const
{
using namespace ir;
@@ -4317,17 +4367,10 @@ namespace gbe
srcNum = 2;
if (insn.getSamplerOffset() != 0) {
- // U, lod, [V], [W]
- GBE_ASSERT(insn.getSrcType() != TYPE_FLOAT);
- msgPayloads[0] = sel.selReg(insn.getSrc(0), insn.getSrcType());
- msgPayloads[1] = sel.selReg(sel.reg(FAMILY_DWORD), TYPE_U32);
- if (srcNum > 1)
- msgPayloads[2] = sel.selReg(insn.getSrc(1), insn.getSrcType());
- if (srcNum > 2)
- msgPayloads[3] = sel.selReg(insn.getSrc(2), insn.getSrcType());
- // Clear the lod to zero.
- sel.MOV(msgPayloads[1], GenRegister::immud(0));
- msgLen = srcNum + 1;
+ if(sel.getLdMsgOrder() < LD_MSG_ORDER_SKL)
+ this->emitLd_ivb(sel, insn, msgPayloads, msgLen);
+ else
+ this->emitLd_skl(sel, insn, msgPayloads, msgLen);
} else {
// U, V, [W]
GBE_ASSERT(insn.getSrcType() == TYPE_FLOAT);
diff --git a/backend/src/backend/gen_insn_selection.hpp b/backend/src/backend/gen_insn_selection.hpp
index 8bffb16..6a08180 100644
--- a/backend/src/backend/gen_insn_selection.hpp
+++ b/backend/src/backend/gen_insn_selection.hpp
@@ -294,6 +294,13 @@ namespace gbe
Selection8(GenContext &ctx);
};
+ class Selection9: public Selection
+ {
+ public:
+ /*! Initialize internal structures used for the selection */
+ Selection9(GenContext &ctx);
+ };
+
} /* namespace gbe */
#endif /* __GEN_INSN_SELECTION_HPP__ */
diff --git a/backend/src/backend/gen_program.cpp b/backend/src/backend/gen_program.cpp
index 01e7ee9..4cfb703 100644
--- a/backend/src/backend/gen_program.cpp
+++ b/backend/src/backend/gen_program.cpp
@@ -54,6 +54,7 @@
#include "backend/gen_context.hpp"
#include "backend/gen75_context.hpp"
#include "backend/gen8_context.hpp"
+#include "backend/gen9_context.hpp"
#include "backend/gen_defs.hpp"
#include "backend/gen/gen_mesa_disasm.h"
#include "backend/gen_reg_allocation.hpp"
@@ -171,7 +172,7 @@ namespace gbe {
} else if (IS_BROADWELL(deviceID)) {
ctx = GBE_NEW(Gen8Context, unit, name, deviceID, relaxMath);
} else if (IS_SKYLAKE(deviceID)) {
- ctx = GBE_NEW(Gen8Context, unit, name, deviceID, relaxMath);
+ ctx = GBE_NEW(Gen9Context, unit, name, deviceID, relaxMath);
}
GBE_ASSERTM(ctx != NULL, "Fail to create the gen context\n");
--
2.1.0
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