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drm/amdkfd: Move gfx12 trap handler to separate file
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gfx12 derivatives will have substantially different trap handler
implementations from gfx10/gfx11. Add a separate source file for
gfx12+ and remove unneeded conditional code.

No functional change.

v2: Revert copyright date to 2018, minor comment fixes

Signed-off-by: Jay Cornwall <jay.cornwall@amd.com>
Reviewed-by: Lancelot Six <lancelot.six@amd.com>
Cc: Jonathan Kim <jonathan.kim@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Jay Cornwall authored and Alex Deucher committed Jan 9, 2025
1 parent 6ec6cd9 commit 62498e7
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Showing 2 changed files with 1,127 additions and 201 deletions.
202 changes: 1 addition & 201 deletions drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler_gfx10.asm
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Original file line number Diff line number Diff line change
Expand Up @@ -34,41 +34,24 @@
* cpp -DASIC_FAMILY=CHIP_PLUM_BONITO cwsr_trap_handler_gfx10.asm -P -o gfx11.sp3
* sp3 gfx11.sp3 -hex gfx11.hex
*
* gfx12:
* cpp -DASIC_FAMILY=CHIP_GFX12 cwsr_trap_handler_gfx10.asm -P -o gfx12.sp3
* sp3 gfx12.sp3 -hex gfx12.hex
*/

#define CHIP_NAVI10 26
#define CHIP_SIENNA_CICHLID 30
#define CHIP_PLUM_BONITO 36
#define CHIP_GFX12 37

#define NO_SQC_STORE (ASIC_FAMILY >= CHIP_SIENNA_CICHLID)
#define HAVE_XNACK (ASIC_FAMILY < CHIP_SIENNA_CICHLID)
#define HAVE_SENDMSG_RTN (ASIC_FAMILY >= CHIP_PLUM_BONITO)
#define HAVE_BUFFER_LDS_LOAD (ASIC_FAMILY < CHIP_PLUM_BONITO)
#define SW_SA_TRAP (ASIC_FAMILY >= CHIP_PLUM_BONITO && ASIC_FAMILY < CHIP_GFX12)
#define SW_SA_TRAP (ASIC_FAMILY == CHIP_PLUM_BONITO)
#define SAVE_AFTER_XNACK_ERROR (HAVE_XNACK && !NO_SQC_STORE) // workaround for TCP store failure after XNACK error when ALLOW_REPLAY=0, for debugger
#define SINGLE_STEP_MISSED_WORKAROUND 1 //workaround for lost MODE.DEBUG_EN exception when SAVECTX raised

#if ASIC_FAMILY < CHIP_GFX12
#define S_COHERENCE glc:1
#define V_COHERENCE slc:1 glc:1
#define S_WAITCNT_0 s_waitcnt 0
#else
#define S_COHERENCE scope:SCOPE_SYS
#define V_COHERENCE scope:SCOPE_SYS
#define S_WAITCNT_0 s_wait_idle

#define HW_REG_SHADER_FLAT_SCRATCH_LO HW_REG_WAVE_SCRATCH_BASE_LO
#define HW_REG_SHADER_FLAT_SCRATCH_HI HW_REG_WAVE_SCRATCH_BASE_HI
#define HW_REG_GPR_ALLOC HW_REG_WAVE_GPR_ALLOC
#define HW_REG_LDS_ALLOC HW_REG_WAVE_LDS_ALLOC
#define HW_REG_MODE HW_REG_WAVE_MODE
#endif

#if ASIC_FAMILY < CHIP_GFX12
var SQ_WAVE_STATUS_SPI_PRIO_MASK = 0x00000006
var SQ_WAVE_STATUS_HALT_MASK = 0x2000
var SQ_WAVE_STATUS_ECC_ERR_MASK = 0x20000
Expand All @@ -81,21 +64,6 @@ var S_STATUS_ALWAYS_CLEAR_MASK = SQ_WAVE_STATUS_SPI_PRIO_MASK|SQ_WAVE_STATUS_E
var S_STATUS_HALT_MASK = SQ_WAVE_STATUS_HALT_MASK
var S_SAVE_PC_HI_TRAP_ID_MASK = 0x00FF0000
var S_SAVE_PC_HI_HT_MASK = 0x01000000
#else
var SQ_WAVE_STATE_PRIV_BARRIER_COMPLETE_MASK = 0x4
var SQ_WAVE_STATE_PRIV_SCC_SHIFT = 9
var SQ_WAVE_STATE_PRIV_SYS_PRIO_MASK = 0xC00
var SQ_WAVE_STATE_PRIV_HALT_MASK = 0x4000
var SQ_WAVE_STATE_PRIV_POISON_ERR_MASK = 0x8000
var SQ_WAVE_STATE_PRIV_POISON_ERR_SHIFT = 15
var SQ_WAVE_STATUS_WAVE64_SHIFT = 29
var SQ_WAVE_STATUS_WAVE64_SIZE = 1
var SQ_WAVE_LDS_ALLOC_GRANULARITY = 9
var S_STATUS_HWREG = HW_REG_WAVE_STATE_PRIV
var S_STATUS_ALWAYS_CLEAR_MASK = SQ_WAVE_STATE_PRIV_SYS_PRIO_MASK|SQ_WAVE_STATE_PRIV_POISON_ERR_MASK
var S_STATUS_HALT_MASK = SQ_WAVE_STATE_PRIV_HALT_MASK
var S_SAVE_PC_HI_TRAP_ID_MASK = 0xF0000000
#endif

var SQ_WAVE_STATUS_NO_VGPRS_SHIFT = 24
var SQ_WAVE_LDS_ALLOC_LDS_SIZE_SHIFT = 12
Expand All @@ -110,7 +78,6 @@ var SQ_WAVE_GPR_ALLOC_VGPR_SIZE_SHIFT = 8
var SQ_WAVE_GPR_ALLOC_VGPR_SIZE_SHIFT = 12
#endif

#if ASIC_FAMILY < CHIP_GFX12
var SQ_WAVE_TRAPSTS_SAVECTX_MASK = 0x400
var SQ_WAVE_TRAPSTS_EXCP_MASK = 0x1FF
var SQ_WAVE_TRAPSTS_SAVECTX_SHIFT = 10
Expand Down Expand Up @@ -161,39 +128,6 @@ var S_TRAPSTS_RESTORE_PART_3_SIZE = 32 - S_TRAPSTS_RESTORE_PART_3_SHIFT
var S_TRAPSTS_HWREG = HW_REG_TRAPSTS
var S_TRAPSTS_SAVE_CONTEXT_MASK = SQ_WAVE_TRAPSTS_SAVECTX_MASK
var S_TRAPSTS_SAVE_CONTEXT_SHIFT = SQ_WAVE_TRAPSTS_SAVECTX_SHIFT
#else
var SQ_WAVE_EXCP_FLAG_PRIV_ADDR_WATCH_MASK = 0xF
var SQ_WAVE_EXCP_FLAG_PRIV_MEM_VIOL_MASK = 0x10
var SQ_WAVE_EXCP_FLAG_PRIV_SAVE_CONTEXT_SHIFT = 5
var SQ_WAVE_EXCP_FLAG_PRIV_SAVE_CONTEXT_MASK = 0x20
var SQ_WAVE_EXCP_FLAG_PRIV_ILLEGAL_INST_MASK = 0x40
var SQ_WAVE_EXCP_FLAG_PRIV_ILLEGAL_INST_SHIFT = 6
var SQ_WAVE_EXCP_FLAG_PRIV_HOST_TRAP_MASK = 0x80
var SQ_WAVE_EXCP_FLAG_PRIV_HOST_TRAP_SHIFT = 7
var SQ_WAVE_EXCP_FLAG_PRIV_WAVE_START_MASK = 0x100
var SQ_WAVE_EXCP_FLAG_PRIV_WAVE_START_SHIFT = 8
var SQ_WAVE_EXCP_FLAG_PRIV_WAVE_END_MASK = 0x200
var SQ_WAVE_EXCP_FLAG_PRIV_TRAP_AFTER_INST_MASK = 0x800
var SQ_WAVE_TRAP_CTRL_ADDR_WATCH_MASK = 0x80
var SQ_WAVE_TRAP_CTRL_TRAP_AFTER_INST_MASK = 0x200

var S_TRAPSTS_HWREG = HW_REG_WAVE_EXCP_FLAG_PRIV
var S_TRAPSTS_SAVE_CONTEXT_MASK = SQ_WAVE_EXCP_FLAG_PRIV_SAVE_CONTEXT_MASK
var S_TRAPSTS_SAVE_CONTEXT_SHIFT = SQ_WAVE_EXCP_FLAG_PRIV_SAVE_CONTEXT_SHIFT
var S_TRAPSTS_NON_MASKABLE_EXCP_MASK = SQ_WAVE_EXCP_FLAG_PRIV_MEM_VIOL_MASK |\
SQ_WAVE_EXCP_FLAG_PRIV_ILLEGAL_INST_MASK |\
SQ_WAVE_EXCP_FLAG_PRIV_HOST_TRAP_MASK |\
SQ_WAVE_EXCP_FLAG_PRIV_WAVE_START_MASK |\
SQ_WAVE_EXCP_FLAG_PRIV_WAVE_END_MASK |\
SQ_WAVE_EXCP_FLAG_PRIV_TRAP_AFTER_INST_MASK
var S_TRAPSTS_RESTORE_PART_1_SIZE = SQ_WAVE_EXCP_FLAG_PRIV_SAVE_CONTEXT_SHIFT
var S_TRAPSTS_RESTORE_PART_2_SHIFT = SQ_WAVE_EXCP_FLAG_PRIV_ILLEGAL_INST_SHIFT
var S_TRAPSTS_RESTORE_PART_2_SIZE = SQ_WAVE_EXCP_FLAG_PRIV_HOST_TRAP_SHIFT - SQ_WAVE_EXCP_FLAG_PRIV_ILLEGAL_INST_SHIFT
var S_TRAPSTS_RESTORE_PART_3_SHIFT = SQ_WAVE_EXCP_FLAG_PRIV_WAVE_START_SHIFT
var S_TRAPSTS_RESTORE_PART_3_SIZE = 32 - S_TRAPSTS_RESTORE_PART_3_SHIFT
var BARRIER_STATE_SIGNAL_OFFSET = 16
var BARRIER_STATE_VALID_OFFSET = 0
#endif

// bits [31:24] unused by SPI debug data
var TTMP11_SAVE_REPLAY_W64H_SHIFT = 31
Expand Down Expand Up @@ -305,11 +239,7 @@ L_TRAP_NO_BARRIER:

L_HALTED:
// Host trap may occur while wave is halted.
#if ASIC_FAMILY < CHIP_GFX12
s_and_b32 ttmp2, s_save_pc_hi, S_SAVE_PC_HI_TRAP_ID_MASK
#else
s_and_b32 ttmp2, s_save_trapsts, SQ_WAVE_EXCP_FLAG_PRIV_HOST_TRAP_MASK
#endif
s_cbranch_scc1 L_FETCH_2ND_TRAP

L_CHECK_SAVE:
Expand All @@ -336,7 +266,6 @@ L_NOT_HALTED:
// Check for maskable exceptions in trapsts.excp and trapsts.excp_hi.
// Maskable exceptions only cause the wave to enter the trap handler if
// their respective bit in mode.excp_en is set.
#if ASIC_FAMILY < CHIP_GFX12
s_and_b32 ttmp2, s_save_trapsts, SQ_WAVE_TRAPSTS_EXCP_MASK|SQ_WAVE_TRAPSTS_EXCP_HI_MASK
s_cbranch_scc0 L_CHECK_TRAP_ID

Expand All @@ -349,17 +278,6 @@ L_NOT_ADDR_WATCH:
s_lshl_b32 ttmp2, ttmp2, SQ_WAVE_MODE_EXCP_EN_SHIFT
s_and_b32 ttmp2, ttmp2, ttmp3
s_cbranch_scc1 L_FETCH_2ND_TRAP
#else
s_getreg_b32 ttmp2, hwreg(HW_REG_WAVE_EXCP_FLAG_USER)
s_and_b32 ttmp3, s_save_trapsts, SQ_WAVE_EXCP_FLAG_PRIV_ADDR_WATCH_MASK
s_cbranch_scc0 L_NOT_ADDR_WATCH
s_or_b32 ttmp2, ttmp2, SQ_WAVE_TRAP_CTRL_ADDR_WATCH_MASK

L_NOT_ADDR_WATCH:
s_getreg_b32 ttmp3, hwreg(HW_REG_WAVE_TRAP_CTRL)
s_and_b32 ttmp2, ttmp3, ttmp2
s_cbranch_scc1 L_FETCH_2ND_TRAP
#endif

L_CHECK_TRAP_ID:
// Check trap_id != 0
Expand All @@ -369,13 +287,8 @@ L_CHECK_TRAP_ID:
#if SINGLE_STEP_MISSED_WORKAROUND
// Prioritize single step exception over context save.
// Second-level trap will halt wave and RFE, re-entering for SAVECTX.
#if ASIC_FAMILY < CHIP_GFX12
s_getreg_b32 ttmp2, hwreg(HW_REG_MODE)
s_and_b32 ttmp2, ttmp2, SQ_WAVE_MODE_DEBUG_EN_MASK
#else
// WAVE_TRAP_CTRL is already in ttmp3.
s_and_b32 ttmp3, ttmp3, SQ_WAVE_TRAP_CTRL_TRAP_AFTER_INST_MASK
#endif
s_cbranch_scc1 L_FETCH_2ND_TRAP
#endif

Expand Down Expand Up @@ -425,12 +338,7 @@ L_NO_NEXT_TRAP:
s_cbranch_scc1 L_TRAP_CASE

// Host trap will not cause trap re-entry.
#if ASIC_FAMILY < CHIP_GFX12
s_and_b32 ttmp2, s_save_pc_hi, S_SAVE_PC_HI_HT_MASK
#else
s_getreg_b32 ttmp2, hwreg(HW_REG_WAVE_EXCP_FLAG_PRIV)
s_and_b32 ttmp2, ttmp2, SQ_WAVE_EXCP_FLAG_PRIV_HOST_TRAP_MASK
#endif
s_cbranch_scc1 L_EXIT_TRAP
s_or_b32 s_save_status, s_save_status, S_STATUS_HALT_MASK

Expand All @@ -457,16 +365,7 @@ L_EXIT_TRAP:
s_and_b64 exec, exec, exec // Restore STATUS.EXECZ, not writable by s_setreg_b32
s_and_b64 vcc, vcc, vcc // Restore STATUS.VCCZ, not writable by s_setreg_b32

#if ASIC_FAMILY < CHIP_GFX12
s_setreg_b32 hwreg(S_STATUS_HWREG), s_save_status
#else
// STATE_PRIV.BARRIER_COMPLETE may have changed since we read it.
// Only restore fields which the trap handler changes.
s_lshr_b32 s_save_status, s_save_status, SQ_WAVE_STATE_PRIV_SCC_SHIFT
s_setreg_b32 hwreg(S_STATUS_HWREG, SQ_WAVE_STATE_PRIV_SCC_SHIFT, \
SQ_WAVE_STATE_PRIV_POISON_ERR_SHIFT - SQ_WAVE_STATE_PRIV_SCC_SHIFT + 1), s_save_status
#endif

s_rfe_b64 [ttmp0, ttmp1]

L_SAVE:
Expand All @@ -478,14 +377,6 @@ L_SAVE:
s_endpgm
L_HAVE_VGPRS:
#endif
#if ASIC_FAMILY >= CHIP_GFX12
s_getreg_b32 s_save_tmp, hwreg(HW_REG_WAVE_STATUS)
s_bitcmp1_b32 s_save_tmp, SQ_WAVE_STATUS_NO_VGPRS_SHIFT
s_cbranch_scc0 L_HAVE_VGPRS
s_endpgm
L_HAVE_VGPRS:
#endif

s_and_b32 s_save_pc_hi, s_save_pc_hi, 0x0000ffff //pc[47:32]
s_mov_b32 s_save_tmp, 0
s_setreg_b32 hwreg(S_TRAPSTS_HWREG, S_TRAPSTS_SAVE_CONTEXT_SHIFT, 1), s_save_tmp //clear saveCtx bit
Expand Down Expand Up @@ -671,19 +562,6 @@ L_SAVE_HWREG:
s_mov_b32 m0, 0x0 //Next lane of v2 to write to
#endif

#if ASIC_FAMILY >= CHIP_GFX12
// Ensure no further changes to barrier or LDS state.
// STATE_PRIV.BARRIER_COMPLETE may change up to this point.
s_barrier_signal -2
s_barrier_wait -2

// Re-read final state of BARRIER_COMPLETE field for save.
s_getreg_b32 s_save_tmp, hwreg(S_STATUS_HWREG)
s_and_b32 s_save_tmp, s_save_tmp, SQ_WAVE_STATE_PRIV_BARRIER_COMPLETE_MASK
s_andn2_b32 s_save_status, s_save_status, SQ_WAVE_STATE_PRIV_BARRIER_COMPLETE_MASK
s_or_b32 s_save_status, s_save_status, s_save_tmp
#endif

write_hwreg_to_mem(s_save_m0, s_save_buf_rsrc0, s_save_mem_offset)
write_hwreg_to_mem(s_save_pc_lo, s_save_buf_rsrc0, s_save_mem_offset)
s_andn2_b32 s_save_tmp, s_save_pc_hi, S_SAVE_PC_HI_FIRST_WAVE_MASK
Expand All @@ -707,21 +585,6 @@ L_SAVE_HWREG:
s_getreg_b32 s_save_m0, hwreg(HW_REG_SHADER_FLAT_SCRATCH_HI)
write_hwreg_to_mem(s_save_m0, s_save_buf_rsrc0, s_save_mem_offset)

#if ASIC_FAMILY >= CHIP_GFX12
s_getreg_b32 s_save_m0, hwreg(HW_REG_WAVE_EXCP_FLAG_USER)
write_hwreg_to_mem(s_save_m0, s_save_buf_rsrc0, s_save_mem_offset)

s_getreg_b32 s_save_m0, hwreg(HW_REG_WAVE_TRAP_CTRL)
write_hwreg_to_mem(s_save_m0, s_save_buf_rsrc0, s_save_mem_offset)

s_getreg_b32 s_save_tmp, hwreg(HW_REG_WAVE_STATUS)
write_hwreg_to_mem(s_save_tmp, s_save_buf_rsrc0, s_save_mem_offset)

s_get_barrier_state s_save_tmp, -1
s_wait_kmcnt (0)
write_hwreg_to_mem(s_save_tmp, s_save_buf_rsrc0, s_save_mem_offset)
#endif

#if NO_SQC_STORE
// Write HWREGs with 16 VGPR lanes. TTMPs occupy space after this.
s_mov_b32 exec_lo, 0xFFFF
Expand Down Expand Up @@ -814,9 +677,7 @@ L_SAVE_LDS_NORMAL:
s_and_b32 s_save_alloc_size, s_save_alloc_size, 0xFFFFFFFF //lds_size is zero?
s_cbranch_scc0 L_SAVE_LDS_DONE //no lds used? jump to L_SAVE_DONE

#if ASIC_FAMILY < CHIP_GFX12
s_barrier //LDS is used? wait for other waves in the same TG
#endif
s_and_b32 s_save_tmp, s_save_pc_hi, S_SAVE_PC_HI_FIRST_WAVE_MASK
s_cbranch_scc0 L_SAVE_LDS_DONE

Expand Down Expand Up @@ -1081,11 +942,6 @@ L_RESTORE:
s_mov_b32 s_restore_buf_rsrc2, 0 //NUM_RECORDS initial value = 0 (in bytes)
s_mov_b32 s_restore_buf_rsrc3, S_RESTORE_BUF_RSRC_WORD3_MISC

#if ASIC_FAMILY >= CHIP_GFX12
// Save s_restore_spi_init_hi for later use.
s_mov_b32 s_restore_spi_init_hi_save, s_restore_spi_init_hi
#endif

//determine it is wave32 or wave64
get_wave_size2(s_restore_size)

Expand Down Expand Up @@ -1320,9 +1176,7 @@ L_RESTORE_SGPR:
// s_barrier with MODE.DEBUG_EN=1, STATUS.PRIV=1 incorrectly asserts debug exception.
// Clear DEBUG_EN before and restore MODE after the barrier.
s_setreg_imm32_b32 hwreg(HW_REG_MODE), 0
#if ASIC_FAMILY < CHIP_GFX12
s_barrier //barrier to ensure the readiness of LDS before access attemps from any other wave in the same TG
#endif

/* restore HW registers */
L_RESTORE_HWREG:
Expand All @@ -1334,11 +1188,6 @@ L_RESTORE_HWREG:

s_mov_b32 s_restore_buf_rsrc2, 0x1000000 //NUM_RECORDS in bytes

#if ASIC_FAMILY >= CHIP_GFX12
// Restore s_restore_spi_init_hi before the saved value gets clobbered.
s_mov_b32 s_restore_spi_init_hi, s_restore_spi_init_hi_save
#endif

read_hwreg_from_mem(s_restore_m0, s_restore_buf_rsrc0, s_restore_mem_offset)
read_hwreg_from_mem(s_restore_pc_lo, s_restore_buf_rsrc0, s_restore_mem_offset)
read_hwreg_from_mem(s_restore_pc_hi, s_restore_buf_rsrc0, s_restore_mem_offset)
Expand All @@ -1358,44 +1207,6 @@ L_RESTORE_HWREG:

s_setreg_b32 hwreg(HW_REG_SHADER_FLAT_SCRATCH_HI), s_restore_flat_scratch

#if ASIC_FAMILY >= CHIP_GFX12
read_hwreg_from_mem(s_restore_tmp, s_restore_buf_rsrc0, s_restore_mem_offset)
S_WAITCNT_0
s_setreg_b32 hwreg(HW_REG_WAVE_EXCP_FLAG_USER), s_restore_tmp

read_hwreg_from_mem(s_restore_tmp, s_restore_buf_rsrc0, s_restore_mem_offset)
S_WAITCNT_0
s_setreg_b32 hwreg(HW_REG_WAVE_TRAP_CTRL), s_restore_tmp

// Only the first wave needs to restore the workgroup barrier.
s_and_b32 s_restore_tmp, s_restore_spi_init_hi, S_RESTORE_SPI_INIT_FIRST_WAVE_MASK
s_cbranch_scc0 L_SKIP_BARRIER_RESTORE

// Skip over WAVE_STATUS, since there is no state to restore from it
s_add_u32 s_restore_mem_offset, s_restore_mem_offset, 4

read_hwreg_from_mem(s_restore_tmp, s_restore_buf_rsrc0, s_restore_mem_offset)
S_WAITCNT_0

s_bitcmp1_b32 s_restore_tmp, BARRIER_STATE_VALID_OFFSET
s_cbranch_scc0 L_SKIP_BARRIER_RESTORE

// extract the saved signal count from s_restore_tmp
s_lshr_b32 s_restore_tmp, s_restore_tmp, BARRIER_STATE_SIGNAL_OFFSET

// We need to call s_barrier_signal repeatedly to restore the signal
// count of the work group barrier. The member count is already
// initialized with the number of waves in the work group.
L_BARRIER_RESTORE_LOOP:
s_and_b32 s_restore_tmp, s_restore_tmp, s_restore_tmp
s_cbranch_scc0 L_SKIP_BARRIER_RESTORE
s_barrier_signal -1
s_add_i32 s_restore_tmp, s_restore_tmp, -1
s_branch L_BARRIER_RESTORE_LOOP

L_SKIP_BARRIER_RESTORE:
#endif

s_mov_b32 m0, s_restore_m0
s_mov_b32 exec_lo, s_restore_exec_lo
s_mov_b32 exec_hi, s_restore_exec_hi
Expand Down Expand Up @@ -1453,13 +1264,6 @@ L_RETURN_WITHOUT_PRIV:

s_setreg_b32 hwreg(S_STATUS_HWREG), s_restore_status // SCC is included, which is changed by previous salu

#if ASIC_FAMILY >= CHIP_GFX12
// Make barrier and LDS state visible to all waves in the group.
// STATE_PRIV.BARRIER_COMPLETE may change after this point.
s_barrier_signal -2
s_barrier_wait -2
#endif

s_rfe_b64 s_restore_pc_lo //Return to the main shader program and resume execution

L_END_PGM:
Expand Down Expand Up @@ -1598,11 +1402,7 @@ function get_hwreg_size_bytes
end

function get_wave_size2(s_reg)
#if ASIC_FAMILY < CHIP_GFX12
s_getreg_b32 s_reg, hwreg(HW_REG_IB_STS2,SQ_WAVE_IB_STS2_WAVE64_SHIFT,SQ_WAVE_IB_STS2_WAVE64_SIZE)
#else
s_getreg_b32 s_reg, hwreg(HW_REG_WAVE_STATUS,SQ_WAVE_STATUS_WAVE64_SHIFT,SQ_WAVE_STATUS_WAVE64_SIZE)
#endif
s_lshl_b32 s_reg, s_reg, S_WAVE_SIZE
end

Expand Down
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