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drm/amdkfd: Swap trap temporary registers in gfx10 trap handler

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ttmp[4:5] hold information useful to the debugger. Use ttmp[14:15]
instead, aligning implementation with gfx9 trap handler.

Signed-off-by: Jay Cornwall <jay.cornwall@amd.com>
Reviewed-by: shaoyun liu <Shaoyun.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jay Cornwall 2019-09-12 14:03:41 -05:00 committed by Alex Deucher
parent 8b8031703b
commit 8fde7784ec
2 changed files with 8 additions and 8 deletions
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6
drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler.h
View File

@ -694,10 +694,10 @@ static const uint32_t cwsr_trap_gfx10_hex[] = {
0x003f8000, 0x8f6f896f,
0x88776f77, 0x8a6eff6e,
0x023f8000, 0xb9eef807,
0xb970f812, 0xb971f813,
0x8ff08870, 0xf4051bb8,
0xb97af812, 0xb97bf813,
0x8ffa887a, 0xf4051bbd,
0xfa000000, 0xbf8cc07f,
0xf4051c38, 0xfa000008,
0xf4051ebd, 0xfa000008,
0xbf8cc07f, 0x87ee6e6e,
0xbf840001, 0xbe80206e,
0xb971f803, 0x8771ff71,

10
drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler_gfx10.asm
View File

@ -187,12 +187,12 @@ L_FETCH_2ND_TRAP:
// Read second-level TBA/TMA from first-level TMA and jump if available.
// ttmp[2:5] and ttmp12 can be used (others hold SPI-initialized debug data)
// ttmp12 holds SQ_WAVE_STATUS
s_getreg_b32 ttmp4, hwreg(HW_REG_SHADER_TMA_LO)
s_getreg_b32 ttmp5, hwreg(HW_REG_SHADER_TMA_HI)
s_lshl_b64 [ttmp4, ttmp5], [ttmp4, ttmp5], 0x8
s_load_dwordx2 [ttmp2, ttmp3], [ttmp4, ttmp5], 0x0 glc:1 // second-level TBA
s_getreg_b32 ttmp14, hwreg(HW_REG_SHADER_TMA_LO)
s_getreg_b32 ttmp15, hwreg(HW_REG_SHADER_TMA_HI)
s_lshl_b64 [ttmp14, ttmp15], [ttmp14, ttmp15], 0x8
s_load_dwordx2 [ttmp2, ttmp3], [ttmp14, ttmp15], 0x0 glc:1 // second-level TBA
s_waitcnt lgkmcnt(0)
s_load_dwordx2 [ttmp4, ttmp5], [ttmp4, ttmp5], 0x8 glc:1 // second-level TMA
s_load_dwordx2 [ttmp14, ttmp15], [ttmp14, ttmp15], 0x8 glc:1 // second-level TMA
s_waitcnt lgkmcnt(0)
s_and_b64 [ttmp2, ttmp3], [ttmp2, ttmp3], [ttmp2, ttmp3]
s_cbranch_scc0 L_NO_NEXT_TRAP // second-level trap handler not been set