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drm/amdkfd: pass debug exceptions to second-level trap handler

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Call the 2nd level trap handler if the cwsr handler is entered with any
one of wave_start, wave_end, or trap_after_inst exceptions.

Signed-off-by: Laurent Morichetti <laurent.morichetti@amd.com>
Tested-by: Lancelot Six <lancelot.six@amd.com>
Reviewed-by: Jay Cornwall <jay.cornwall@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Laurent Morichetti
2024-01-30 13:58:00 -08:00
committed by Alex Deucher
parent 7f9dde7884
commit 804bf74b16
2 changed files with 17 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler.h
View File

@@ -2518,7 +2518,7 @@ static const uint32_t cwsr_trap_gfx11_hex[] = {
0x8b6eff7b, 0x00000400,
0xbfa20045, 0xbf830010,
0xb8fbf803, 0xbfa0fffa,
0x8b6eff7b, 0x00000900,
0x8b6eff7b, 0x00160900,
0xbfa20015, 0x8b6eff7b,
0x000071ff, 0xbfa10008,
0x8b6fff7b, 0x00007080,

17
drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler_gfx10.asm
View File

@@ -81,6 +81,11 @@ var SQ_WAVE_TRAPSTS_POST_SAVECTX_SHIFT = 11
var SQ_WAVE_TRAPSTS_POST_SAVECTX_SIZE = 21
var SQ_WAVE_TRAPSTS_ILLEGAL_INST_MASK = 0x800
var SQ_WAVE_TRAPSTS_EXCP_HI_MASK = 0x7000
#if ASIC_FAMILY >= CHIP_PLUM_BONITO
var SQ_WAVE_TRAPSTS_WAVE_START_MASK = 0x20000
var SQ_WAVE_TRAPSTS_WAVE_END_MASK = 0x40000
var SQ_WAVE_TRAPSTS_TRAP_AFTER_INST_MASK = 0x100000
#endif
var SQ_WAVE_MODE_EXCP_EN_SHIFT = 12
var SQ_WAVE_MODE_EXCP_EN_ADDR_WATCH_SHIFT = 19
@@ -92,6 +97,16 @@ var SQ_WAVE_IB_STS_RCNT_FIRST_REPLAY_MASK = 0x003F8000
var SQ_WAVE_MODE_DEBUG_EN_MASK = 0x800
#if ASIC_FAMILY < CHIP_PLUM_BONITO
var S_TRAPSTS_NON_MASKABLE_EXCP_MASK = SQ_WAVE_TRAPSTS_MEM_VIOL_MASK|SQ_WAVE_TRAPSTS_ILLEGAL_INST_MASK
#else
var S_TRAPSTS_NON_MASKABLE_EXCP_MASK = SQ_WAVE_TRAPSTS_MEM_VIOL_MASK |\
SQ_WAVE_TRAPSTS_ILLEGAL_INST_MASK |\
SQ_WAVE_TRAPSTS_WAVE_START_MASK |\
SQ_WAVE_TRAPSTS_WAVE_END_MASK |\
SQ_WAVE_TRAPSTS_TRAP_AFTER_INST_MASK
#endif
// bits [31:24] unused by SPI debug data
var TTMP11_SAVE_REPLAY_W64H_SHIFT = 31
var TTMP11_SAVE_REPLAY_W64H_MASK = 0x80000000
@@ -224,7 +239,7 @@ L_NOT_HALTED:
// Check non-maskable exceptions. memory_violation, illegal_instruction
// and xnack_error exceptions always cause the wave to enter the trap
// handler.
s_and_b32 ttmp2, s_save_trapsts, SQ_WAVE_TRAPSTS_MEM_VIOL_MASK|SQ_WAVE_TRAPSTS_ILLEGAL_INST_MASK
s_and_b32 ttmp2, s_save_trapsts, S_TRAPSTS_NON_MASKABLE_EXCP_MASK
s_cbranch_scc1 L_FETCH_2ND_TRAP
// Check for maskable exceptions in trapsts.excp and trapsts.excp_hi.