diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler_gfx10.asm')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler_gfx10.asm | 1124 |
1 files changed, 1124 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler_gfx10.asm b/drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler_gfx10.asm new file mode 100644 index 000000000000..f20e463e748b --- /dev/null +++ b/drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler_gfx10.asm @@ -0,0 +1,1124 @@ +/* + * Copyright 2018 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + + +shader main + +asic(DEFAULT) + +type(CS) + +wave_size(32) +/*************************************************************************/ +/* control on how to run the shader */ +/*************************************************************************/ +//any hack that needs to be made to run this code in EMU (either becasue various EMU code are not ready or no compute save & restore in EMU run) +var EMU_RUN_HACK = 0 +var EMU_RUN_HACK_RESTORE_NORMAL = 0 +var EMU_RUN_HACK_SAVE_NORMAL_EXIT = 0 +var EMU_RUN_HACK_SAVE_SINGLE_WAVE = 0 +var EMU_RUN_HACK_SAVE_FIRST_TIME = 0 //for interrupted restore in which the first save is through EMU_RUN_HACK +var SAVE_LDS = 0 +var WG_BASE_ADDR_LO = 0x9000a000 +var WG_BASE_ADDR_HI = 0x0 +var WAVE_SPACE = 0x9000 //memory size that each wave occupies in workgroup state mem, increase from 5000 to 9000 for more SGPR need to be saved +var CTX_SAVE_CONTROL = 0x0 +var CTX_RESTORE_CONTROL = CTX_SAVE_CONTROL +var SIM_RUN_HACK = 0 //any hack that needs to be made to run this code in SIM (either becasue various RTL code are not ready or no compute save & restore in RTL run) +var SGPR_SAVE_USE_SQC = 0 //use SQC D$ to do the write +var USE_MTBUF_INSTEAD_OF_MUBUF = 0 //need to change BUF_DATA_FORMAT in S_SAVE_BUF_RSRC_WORD3_MISC from 0 to BUF_DATA_FORMAT_32 if set to 1 (i.e. 0x00827FAC) +var SWIZZLE_EN = 0 //whether we use swizzled buffer addressing +var SAVE_RESTORE_HWID_DDID = 0 +var RESTORE_DDID_IN_SGPR18 = 0 +/**************************************************************************/ +/* variables */ +/**************************************************************************/ +var SQ_WAVE_STATUS_INST_ATC_SHIFT = 23 +var SQ_WAVE_STATUS_INST_ATC_MASK = 0x00800000 +var SQ_WAVE_STATUS_SPI_PRIO_MASK = 0x00000006 + +var SQ_WAVE_LDS_ALLOC_LDS_SIZE_SHIFT = 12 +var SQ_WAVE_LDS_ALLOC_LDS_SIZE_SIZE = 9 +var SQ_WAVE_GPR_ALLOC_VGPR_SIZE_SHIFT = 8 +var SQ_WAVE_GPR_ALLOC_VGPR_SIZE_SIZE = 6 +var SQ_WAVE_GPR_ALLOC_SGPR_SIZE_SHIFT = 24 +var SQ_WAVE_GPR_ALLOC_SGPR_SIZE_SIZE = 4 //FIXME sq.blk still has 4 bits at this time while SQ programming guide has 3 bits +var SQ_WAVE_LDS_ALLOC_VGPR_SHARED_SIZE_SHIFT = 24 +var SQ_WAVE_LDS_ALLOC_VGPR_SHARED_SIZE_SIZE = 4 +var SQ_WAVE_IB_STS2_WAVE64_SHIFT = 11 +var SQ_WAVE_IB_STS2_WAVE64_SIZE = 1 + +var SQ_WAVE_TRAPSTS_SAVECTX_MASK = 0x400 +var SQ_WAVE_TRAPSTS_EXCE_MASK = 0x1FF // Exception mask +var SQ_WAVE_TRAPSTS_SAVECTX_SHIFT = 10 +var SQ_WAVE_TRAPSTS_MEM_VIOL_MASK = 0x100 +var SQ_WAVE_TRAPSTS_MEM_VIOL_SHIFT = 8 +var SQ_WAVE_TRAPSTS_PRE_SAVECTX_MASK = 0x3FF +var SQ_WAVE_TRAPSTS_PRE_SAVECTX_SHIFT = 0x0 +var SQ_WAVE_TRAPSTS_PRE_SAVECTX_SIZE = 10 +var SQ_WAVE_TRAPSTS_POST_SAVECTX_MASK = 0xFFFFF800 +var SQ_WAVE_TRAPSTS_POST_SAVECTX_SHIFT = 11 +var SQ_WAVE_TRAPSTS_POST_SAVECTX_SIZE = 21 + +var SQ_WAVE_IB_STS_RCNT_SHIFT = 16 //FIXME +var SQ_WAVE_IB_STS_FIRST_REPLAY_SHIFT = 15 //FIXME +var SQ_WAVE_IB_STS_FIRST_REPLAY_SIZE = 1 //FIXME +var SQ_WAVE_IB_STS_RCNT_SIZE = 6 //FIXME +var SQ_WAVE_IB_STS_RCNT_FIRST_REPLAY_MASK_NEG = 0x00007FFF //FIXME + +var SQ_BUF_RSRC_WORD1_ATC_SHIFT = 24 +var SQ_BUF_RSRC_WORD3_MTYPE_SHIFT = 27 + + +/* Save */ +var S_SAVE_BUF_RSRC_WORD1_STRIDE = 0x00040000 //stride is 4 bytes +var S_SAVE_BUF_RSRC_WORD3_MISC = 0x00807FAC //SQ_SEL_X/Y/Z/W, BUF_NUM_FORMAT_FLOAT, (0 for MUBUF stride[17:14] when ADD_TID_ENABLE and BUF_DATA_FORMAT_32 for MTBUF), ADD_TID_ENABLE + +var S_SAVE_SPI_INIT_ATC_MASK = 0x08000000 //bit[27]: ATC bit +var S_SAVE_SPI_INIT_ATC_SHIFT = 27 +var S_SAVE_SPI_INIT_MTYPE_MASK = 0x70000000 //bit[30:28]: Mtype +var S_SAVE_SPI_INIT_MTYPE_SHIFT = 28 +var S_SAVE_SPI_INIT_FIRST_WAVE_MASK = 0x04000000 //bit[26]: FirstWaveInTG +var S_SAVE_SPI_INIT_FIRST_WAVE_SHIFT = 26 + +var S_SAVE_PC_HI_RCNT_SHIFT = 28 //FIXME check with Brian to ensure all fields other than PC[47:0] can be used +var S_SAVE_PC_HI_RCNT_MASK = 0xF0000000 //FIXME +var S_SAVE_PC_HI_FIRST_REPLAY_SHIFT = 27 //FIXME +var S_SAVE_PC_HI_FIRST_REPLAY_MASK = 0x08000000 //FIXME + +var s_save_spi_init_lo = exec_lo +var s_save_spi_init_hi = exec_hi + +var s_save_pc_lo = ttmp0 //{TTMP1, TTMP0} = {3¡¯h0,pc_rewind[3:0], HT[0],trapID[7:0], PC[47:0]} +var s_save_pc_hi = ttmp1 +var s_save_exec_lo = ttmp2 +var s_save_exec_hi = ttmp3 +var s_save_status = ttmp4 +var s_save_trapsts = ttmp5 //not really used until the end of the SAVE routine +var s_wave_size = ttmp6 //ttmp6 is not needed now, since it's only 32bit xnack mask, now use it to determine wave32 or wave64 in EMU_HACK +var s_save_xnack_mask = ttmp7 +var s_save_buf_rsrc0 = ttmp8 +var s_save_buf_rsrc1 = ttmp9 +var s_save_buf_rsrc2 = ttmp10 +var s_save_buf_rsrc3 = ttmp11 + +var s_save_mem_offset = ttmp14 +var s_sgpr_save_num = 106 //in gfx10, all sgpr must be saved +var s_save_alloc_size = s_save_trapsts //conflict +var s_save_tmp = s_save_buf_rsrc2 //shared with s_save_buf_rsrc2 (conflict: should not use mem access with s_save_tmp at the same time) +var s_save_m0 = ttmp15 + +/* Restore */ +var S_RESTORE_BUF_RSRC_WORD1_STRIDE = S_SAVE_BUF_RSRC_WORD1_STRIDE +var S_RESTORE_BUF_RSRC_WORD3_MISC = S_SAVE_BUF_RSRC_WORD3_MISC + +var S_RESTORE_SPI_INIT_ATC_MASK = 0x08000000 //bit[27]: ATC bit +var S_RESTORE_SPI_INIT_ATC_SHIFT = 27 +var S_RESTORE_SPI_INIT_MTYPE_MASK = 0x70000000 //bit[30:28]: Mtype +var S_RESTORE_SPI_INIT_MTYPE_SHIFT = 28 +var S_RESTORE_SPI_INIT_FIRST_WAVE_MASK = 0x04000000 //bit[26]: FirstWaveInTG +var S_RESTORE_SPI_INIT_FIRST_WAVE_SHIFT = 26 + +var S_RESTORE_PC_HI_RCNT_SHIFT = S_SAVE_PC_HI_RCNT_SHIFT +var S_RESTORE_PC_HI_RCNT_MASK = S_SAVE_PC_HI_RCNT_MASK +var S_RESTORE_PC_HI_FIRST_REPLAY_SHIFT = S_SAVE_PC_HI_FIRST_REPLAY_SHIFT +var S_RESTORE_PC_HI_FIRST_REPLAY_MASK = S_SAVE_PC_HI_FIRST_REPLAY_MASK + +var s_restore_spi_init_lo = exec_lo +var s_restore_spi_init_hi = exec_hi + +var s_restore_mem_offset = ttmp12 +var s_restore_alloc_size = ttmp3 +var s_restore_tmp = ttmp6 +var s_restore_mem_offset_save = s_restore_tmp //no conflict + +var s_restore_m0 = s_restore_alloc_size //no conflict + +var s_restore_mode = ttmp13 +var s_restore_hwid1 = ttmp2 +var s_restore_ddid = s_restore_hwid1 +var s_restore_pc_lo = ttmp0 +var s_restore_pc_hi = ttmp1 +var s_restore_exec_lo = ttmp14 +var s_restore_exec_hi = ttmp15 +var s_restore_status = ttmp4 +var s_restore_trapsts = ttmp5 +//var s_restore_xnack_mask_lo = xnack_mask_lo +//var s_restore_xnack_mask_hi = xnack_mask_hi +var s_restore_xnack_mask = ttmp7 +var s_restore_buf_rsrc0 = ttmp8 +var s_restore_buf_rsrc1 = ttmp9 +var s_restore_buf_rsrc2 = ttmp10 +var s_restore_buf_rsrc3 = ttmp11 +var s_restore_size = ttmp13 //ttmp13 has no conflict + +/**************************************************************************/ +/* trap handler entry points */ +/**************************************************************************/ + if ((EMU_RUN_HACK) && (!EMU_RUN_HACK_RESTORE_NORMAL)) //hack to use trap_id for determining save/restore + //FIXME VCCZ un-init assertion s_getreg_b32 s_save_status, hwreg(HW_REG_STATUS) //save STATUS since we will change SCC + s_and_b32 s_save_tmp, s_save_pc_hi, 0xffff0000 //change SCC + s_cmp_eq_u32 s_save_tmp, 0x007e0000 //Save: trap_id = 0x7e. Restore: trap_id = 0x7f. + s_cbranch_scc0 L_JUMP_TO_RESTORE //do not need to recover STATUS here since we are going to RESTORE + //FIXME s_setreg_b32 hwreg(HW_REG_STATUS), s_save_status //need to recover STATUS since we are going to SAVE + s_branch L_SKIP_RESTORE //NOT restore, SAVE actually + else + s_branch L_SKIP_RESTORE //NOT restore. might be a regular trap or save + end + +L_JUMP_TO_RESTORE: + s_branch L_RESTORE //restore + +L_SKIP_RESTORE: + + s_getreg_b32 s_save_status, hwreg(HW_REG_STATUS) //save STATUS since we will change SCC + s_andn2_b32 s_save_status, s_save_status, SQ_WAVE_STATUS_SPI_PRIO_MASK //check whether this is for save + s_getreg_b32 s_save_trapsts, hwreg(HW_REG_TRAPSTS) + s_and_b32 s_save_trapsts, s_save_trapsts, SQ_WAVE_TRAPSTS_SAVECTX_MASK //check whether this is for save + s_cbranch_scc1 L_SAVE //this is the operation for save + + // ********* Handle non-CWSR traps ******************* + if (!EMU_RUN_HACK) + s_getreg_b32 s_save_trapsts, hwreg(HW_REG_TRAPSTS) + s_and_b32 s_save_trapsts, s_save_trapsts, SQ_WAVE_TRAPSTS_EXCE_MASK // Check whether it is an exception + s_cbranch_scc1 L_EXCP_CASE // Exception, jump back to the shader program directly. + s_add_u32 ttmp0, ttmp0, 4 // S_TRAP case, add 4 to ttmp0 + + L_EXCP_CASE: + s_and_b32 ttmp1, ttmp1, 0xFFFF + s_rfe_b64 [ttmp0, ttmp1] + end + // ********* End handling of non-CWSR traps ******************* + +/**************************************************************************/ +/* save routine */ +/**************************************************************************/ + +L_SAVE: + + //check whether there is mem_viol + s_getreg_b32 s_save_trapsts, hwreg(HW_REG_TRAPSTS) + s_and_b32 s_save_trapsts, s_save_trapsts, SQ_WAVE_TRAPSTS_MEM_VIOL_MASK + s_cbranch_scc0 L_NO_PC_REWIND + + //if so, need rewind PC assuming GDS operation gets NACKed + s_mov_b32 s_save_tmp, 0 //clear mem_viol bit + s_setreg_b32 hwreg(HW_REG_TRAPSTS, SQ_WAVE_TRAPSTS_MEM_VIOL_SHIFT, 1), s_save_tmp //clear mem_viol bit + s_and_b32 s_save_pc_hi, s_save_pc_hi, 0x0000ffff //pc[47:32] + s_sub_u32 s_save_pc_lo, s_save_pc_lo, 8 //pc[31:0]-8 + s_subb_u32 s_save_pc_hi, s_save_pc_hi, 0x0 // -scc + +L_NO_PC_REWIND: + s_mov_b32 s_save_tmp, 0 //clear saveCtx bit + s_setreg_b32 hwreg(HW_REG_TRAPSTS, SQ_WAVE_TRAPSTS_SAVECTX_SHIFT, 1), s_save_tmp //clear saveCtx bit + + //s_mov_b32 s_save_xnack_mask_lo, xnack_mask_lo //save XNACK_MASK + //s_mov_b32 s_save_xnack_mask_hi, xnack_mask_hi + s_getreg_b32 s_save_xnack_mask, hwreg(HW_REG_SHADER_XNACK_MASK) + s_getreg_b32 s_save_tmp, hwreg(HW_REG_IB_STS, SQ_WAVE_IB_STS_RCNT_SHIFT, SQ_WAVE_IB_STS_RCNT_SIZE) //save RCNT + s_lshl_b32 s_save_tmp, s_save_tmp, S_SAVE_PC_HI_RCNT_SHIFT + s_or_b32 s_save_pc_hi, s_save_pc_hi, s_save_tmp + s_getreg_b32 s_save_tmp, hwreg(HW_REG_IB_STS, SQ_WAVE_IB_STS_FIRST_REPLAY_SHIFT, SQ_WAVE_IB_STS_FIRST_REPLAY_SIZE) //save FIRST_REPLAY + s_lshl_b32 s_save_tmp, s_save_tmp, S_SAVE_PC_HI_FIRST_REPLAY_SHIFT + s_or_b32 s_save_pc_hi, s_save_pc_hi, s_save_tmp + s_getreg_b32 s_save_tmp, hwreg(HW_REG_IB_STS) //clear RCNT and FIRST_REPLAY in IB_STS + s_and_b32 s_save_tmp, s_save_tmp, SQ_WAVE_IB_STS_RCNT_FIRST_REPLAY_MASK_NEG + + s_setreg_b32 hwreg(HW_REG_IB_STS), s_save_tmp + + /* inform SPI the readiness and wait for SPI's go signal */ + s_mov_b32 s_save_exec_lo, exec_lo //save EXEC and use EXEC for the go signal from SPI + s_mov_b32 s_save_exec_hi, exec_hi + s_mov_b64 exec, 0x0 //clear EXEC to get ready to receive + if (EMU_RUN_HACK) + + else + s_sendmsg sendmsg(MSG_SAVEWAVE) //send SPI a message and wait for SPI's write to EXEC + end + + L_SLEEP: + s_sleep 0x2 + + if (EMU_RUN_HACK) + + else + s_cbranch_execz L_SLEEP + end + + + /* setup Resource Contants */ + if ((EMU_RUN_HACK) && (!EMU_RUN_HACK_SAVE_SINGLE_WAVE)) + //calculate wd_addr using absolute thread id + v_readlane_b32 s_save_tmp, v9, 0 + //determine it is wave32 or wave64 + s_getreg_b32 s_wave_size, hwreg(HW_REG_IB_STS2,SQ_WAVE_IB_STS2_WAVE64_SHIFT,SQ_WAVE_IB_STS2_WAVE64_SIZE) + s_cmp_eq_u32 s_wave_size, 0 + s_cbranch_scc1 L_SAVE_WAVE32 + s_lshr_b32 s_save_tmp, s_save_tmp, 6 //SAVE WAVE64 + s_branch L_SAVE_CON + L_SAVE_WAVE32: + s_lshr_b32 s_save_tmp, s_save_tmp, 5 //SAVE WAVE32 + L_SAVE_CON: + s_mul_i32 s_save_tmp, s_save_tmp, WAVE_SPACE + s_add_i32 s_save_spi_init_lo, s_save_tmp, WG_BASE_ADDR_LO + s_mov_b32 s_save_spi_init_hi, WG_BASE_ADDR_HI + s_and_b32 s_save_spi_init_hi, s_save_spi_init_hi, CTX_SAVE_CONTROL + else + end + if ((EMU_RUN_HACK) && (EMU_RUN_HACK_SAVE_SINGLE_WAVE)) + s_add_i32 s_save_spi_init_lo, s_save_tmp, WG_BASE_ADDR_LO + s_mov_b32 s_save_spi_init_hi, WG_BASE_ADDR_HI + s_and_b32 s_save_spi_init_hi, s_save_spi_init_hi, CTX_SAVE_CONTROL + else + end + + + s_mov_b32 s_save_buf_rsrc0, s_save_spi_init_lo //base_addr_lo + s_and_b32 s_save_buf_rsrc1, s_save_spi_init_hi, 0x0000FFFF //base_addr_hi + s_or_b32 s_save_buf_rsrc1, s_save_buf_rsrc1, S_SAVE_BUF_RSRC_WORD1_STRIDE + s_mov_b32 s_save_buf_rsrc2, 0 //NUM_RECORDS initial value = 0 (in bytes) although not neccessarily inited + s_mov_b32 s_save_buf_rsrc3, S_SAVE_BUF_RSRC_WORD3_MISC + s_and_b32 s_save_tmp, s_save_spi_init_hi, S_SAVE_SPI_INIT_ATC_MASK + s_lshr_b32 s_save_tmp, s_save_tmp, (S_SAVE_SPI_INIT_ATC_SHIFT-SQ_BUF_RSRC_WORD1_ATC_SHIFT) //get ATC bit into position + s_or_b32 s_save_buf_rsrc3, s_save_buf_rsrc3, s_save_tmp //or ATC + s_and_b32 s_save_tmp, s_save_spi_init_hi, S_SAVE_SPI_INIT_MTYPE_MASK + s_lshr_b32 s_save_tmp, s_save_tmp, (S_SAVE_SPI_INIT_MTYPE_SHIFT-SQ_BUF_RSRC_WORD3_MTYPE_SHIFT) //get MTYPE bits into position + s_or_b32 s_save_buf_rsrc3, s_save_buf_rsrc3, s_save_tmp //or MTYPE + + s_mov_b32 s_save_m0, m0 //save M0 + + /* global mem offset */ + s_mov_b32 s_save_mem_offset, 0x0 //mem offset initial value = 0 + s_getreg_b32 s_wave_size, hwreg(HW_REG_IB_STS2,SQ_WAVE_IB_STS2_WAVE64_SHIFT,SQ_WAVE_IB_STS2_WAVE64_SIZE) //get wave_save_size + s_or_b32 s_wave_size, s_save_spi_init_hi, s_wave_size //share s_wave_size with exec_hi + + /* save VGPRs */ + ////////////////////////////// + L_SAVE_VGPR: + + s_mov_b32 exec_lo, 0xFFFFFFFF //need every thread from now on + s_and_b32 m0, s_wave_size, 1 + s_cmp_eq_u32 m0, 1 + s_cbranch_scc1 L_ENABLE_SAVE_VGPR_EXEC_HI + s_mov_b32 exec_hi, 0x00000000 + s_branch L_SAVE_VGPR_NORMAL + L_ENABLE_SAVE_VGPR_EXEC_HI: + s_mov_b32 exec_hi, 0xFFFFFFFF + L_SAVE_VGPR_NORMAL: + s_getreg_b32 s_save_alloc_size, hwreg(HW_REG_GPR_ALLOC,SQ_WAVE_GPR_ALLOC_VGPR_SIZE_SHIFT,SQ_WAVE_GPR_ALLOC_VGPR_SIZE_SIZE) //vpgr_size + //for wave32 and wave64, the num of vgpr function is the same? + s_add_u32 s_save_alloc_size, s_save_alloc_size, 1 + s_lshl_b32 s_save_alloc_size, s_save_alloc_size, 2 //Number of VGPRs = (vgpr_size + 1) * 4 (non-zero value) //FIXME for GFX, zero is possible + //determine it is wave32 or wave64 + s_and_b32 m0, s_wave_size, 1 + s_cmp_eq_u32 m0, 1 + s_cbranch_scc1 L_SAVE_VGPR_WAVE64 + + //zhenxu added it for save vgpr for wave32 + s_lshl_b32 s_save_buf_rsrc2, s_save_alloc_size, 7 //NUM_RECORDS in bytes (32 threads*4) + if (SWIZZLE_EN) + s_add_u32 s_save_buf_rsrc2, s_save_buf_rsrc2, 0x0 //FIXME need to use swizzle to enable bounds checking? + else + s_mov_b32 s_save_buf_rsrc2, 0x1000000 //NUM_RECORDS in bytes + end + + s_mov_b32 m0, 0x0 //VGPR initial index value =0 + //s_set_gpr_idx_on m0, 0x1 //M0[7:0] = M0[7:0] and M0[15:12] = 0x1 + //s_add_u32 s_save_alloc_size, s_save_alloc_size, 0x1000 //add 0x1000 since we compare m0 against it later, doesn't need this in gfx10 + + L_SAVE_VGPR_WAVE32_LOOP: + v_movrels_b32 v0, v0 //v0 = v[0+m0] + + if(USE_MTBUF_INSTEAD_OF_MUBUF) + tbuffer_store_format_x v0, v0, s_save_buf_rsrc0, s_save_mem_offset format:BUF_NUM_FORMAT_FLOAT format: BUF_DATA_FORMAT_32 slc:1 glc:1 + else + buffer_store_dword v0, v0, s_save_buf_rsrc0, s_save_mem_offset slc:1 glc:1 + end + + s_add_u32 m0, m0, 1 //next vgpr index + s_add_u32 s_save_mem_offset, s_save_mem_offset, 128 //every buffer_store_dword does 128 bytes + s_cmp_lt_u32 m0, s_save_alloc_size //scc = (m0 < s_save_alloc_size) ? 1 : 0 + s_cbranch_scc1 L_SAVE_VGPR_WAVE32_LOOP //VGPR save is complete? + s_branch L_SAVE_LDS + //save vgpr for wave32 ends + + L_SAVE_VGPR_WAVE64: + s_lshl_b32 s_save_buf_rsrc2, s_save_alloc_size, 8 //NUM_RECORDS in bytes (64 threads*4) + if (SWIZZLE_EN) + s_add_u32 s_save_buf_rsrc2, s_save_buf_rsrc2, 0x0 //FIXME need to use swizzle to enable bounds checking? + else + s_mov_b32 s_save_buf_rsrc2, 0x1000000 //NUM_RECORDS in bytes + end + + s_mov_b32 m0, 0x0 //VGPR initial index value =0 + //s_set_gpr_idx_on m0, 0x1 //M0[7:0] = M0[7:0] and M0[15:12] = 0x1 + //s_add_u32 s_save_alloc_size, s_save_alloc_size, 0x1000 //add 0x1000 since we compare m0 against it later, doesn't need this in gfx10 + + L_SAVE_VGPR_WAVE64_LOOP: + v_movrels_b32 v0, v0 //v0 = v[0+m0] + + if(USE_MTBUF_INSTEAD_OF_MUBUF) + tbuffer_store_format_x v0, v0, s_save_buf_rsrc0, s_save_mem_offset format:BUF_NUM_FORMAT_FLOAT format: BUF_DATA_FORMAT_32 slc:1 glc:1 + else + buffer_store_dword v0, v0, s_save_buf_rsrc0, s_save_mem_offset slc:1 glc:1 + end + + s_add_u32 m0, m0, 1 //next vgpr index + s_add_u32 s_save_mem_offset, s_save_mem_offset, 256 //every buffer_store_dword does 256 bytes + s_cmp_lt_u32 m0, s_save_alloc_size //scc = (m0 < s_save_alloc_size) ? 1 : 0 + s_cbranch_scc1 L_SAVE_VGPR_WAVE64_LOOP //VGPR save is complete? + //s_set_gpr_idx_off + // + //Below part will be the save shared vgpr part (new for gfx10) + s_getreg_b32 s_save_alloc_size, hwreg(HW_REG_LDS_ALLOC,SQ_WAVE_LDS_ALLOC_VGPR_SHARED_SIZE_SHIFT,SQ_WAVE_LDS_ALLOC_VGPR_SHARED_SIZE_SIZE) //shared_vgpr_size + s_and_b32 s_save_alloc_size, s_save_alloc_size, 0xFFFFFFFF //shared_vgpr_size is zero? + s_cbranch_scc0 L_SAVE_LDS //no shared_vgpr used? jump to L_SAVE_LDS + s_lshl_b32 s_save_alloc_size, s_save_alloc_size, 3 //Number of SHARED_VGPRs = shared_vgpr_size * 8 (non-zero value) + //m0 now has the value of normal vgpr count, just add the m0 with shared_vgpr count to get the total count. + //save shared_vgpr will start from the index of m0 + s_add_u32 s_save_alloc_size, s_save_alloc_size, m0 + s_mov_b32 exec_lo, 0xFFFFFFFF + s_mov_b32 exec_hi, 0x00000000 + L_SAVE_SHARED_VGPR_WAVE64_LOOP: + v_movrels_b32 v0, v0 //v0 = v[0+m0] + buffer_store_dword v0, v0, s_save_buf_rsrc0, s_save_mem_offset slc:1 glc:1 + s_add_u32 m0, m0, 1 //next vgpr index + s_add_u32 s_save_mem_offset, s_save_mem_offset, 128 //every buffer_store_dword does 256 bytes + s_cmp_lt_u32 m0, s_save_alloc_size //scc = (m0 < s_save_alloc_size) ? 1 : 0 + s_cbranch_scc1 L_SAVE_SHARED_VGPR_WAVE64_LOOP //SHARED_VGPR save is complete? + + /* save LDS */ + ////////////////////////////// + L_SAVE_LDS: + + //Only check the first wave need LDS + /* the first wave in the threadgroup */ + s_barrier //FIXME not performance-optimal "LDS is used? wait for other waves in the same TG" + s_and_b32 s_save_tmp, s_wave_size, S_SAVE_SPI_INIT_FIRST_WAVE_MASK //exec is still used here + s_cbranch_scc0 L_SAVE_SGPR + + s_mov_b32 exec_lo, 0xFFFFFFFF //need every thread from now on + s_and_b32 m0, s_wave_size, 1 + s_cmp_eq_u32 m0, 1 + s_cbranch_scc1 L_ENABLE_SAVE_LDS_EXEC_HI + s_mov_b32 exec_hi, 0x00000000 + s_branch L_SAVE_LDS_NORMAL + L_ENABLE_SAVE_LDS_EXEC_HI: + s_mov_b32 exec_hi, 0xFFFFFFFF + L_SAVE_LDS_NORMAL: + s_getreg_b32 s_save_alloc_size, hwreg(HW_REG_LDS_ALLOC,SQ_WAVE_LDS_ALLOC_LDS_SIZE_SHIFT,SQ_WAVE_LDS_ALLOC_LDS_SIZE_SIZE) //lds_size + s_and_b32 s_save_alloc_size, s_save_alloc_size, 0xFFFFFFFF //lds_size is zero? + s_cbranch_scc0 L_SAVE_SGPR //no lds used? jump to L_SAVE_VGPR + s_lshl_b32 s_save_alloc_size, s_save_alloc_size, 6 //LDS size in dwords = lds_size * 64dw + s_lshl_b32 s_save_alloc_size, s_save_alloc_size, 2 //LDS size in bytes + s_mov_b32 s_save_buf_rsrc2, s_save_alloc_size //NUM_RECORDS in bytes + if (SWIZZLE_EN) + s_add_u32 s_save_buf_rsrc2, s_save_buf_rsrc2, 0x0 //FIXME need to use swizzle to enable bounds checking? + else + s_mov_b32 s_save_buf_rsrc2, 0x1000000 //NUM_RECORDS in bytes + end + + //load 0~63*4(byte address) to vgpr v15 + v_mbcnt_lo_u32_b32 v0, -1, 0 + v_mbcnt_hi_u32_b32 v0, -1, v0 + v_mul_u32_u24 v0, 4, v0 + + s_and_b32 m0, s_wave_size, 1 + s_cmp_eq_u32 m0, 1 + s_mov_b32 m0, 0x0 + s_cbranch_scc1 L_SAVE_LDS_LOOP_W64 + + L_SAVE_LDS_LOOP_W32: + if (SAVE_LDS) + ds_read_b32 v1, v0 + s_waitcnt 0 //ensure data ready + buffer_store_dword v1, v0, s_save_buf_rsrc0, s_save_mem_offset slc:1 glc:1 + //buffer_store_lds_dword s_save_buf_rsrc0, s_save_mem_offset lds:1 //save lds to memory doesn't exist in 10 + end + s_add_u32 m0, m0, 128 //every buffer_store_lds does 128 bytes + s_add_u32 s_save_mem_offset, s_save_mem_offset, 128 //mem offset increased by 128 bytes + v_add_nc_u32 v0, v0, 128 + s_cmp_lt_u32 m0, s_save_alloc_size //scc=(m0 < s_save_alloc_size) ? 1 : 0 + s_cbranch_scc1 L_SAVE_LDS_LOOP_W32 //LDS save is complete? + s_branch L_SAVE_SGPR + + L_SAVE_LDS_LOOP_W64: + if (SAVE_LDS) + ds_read_b32 v1, v0 + s_waitcnt 0 //ensure data ready + buffer_store_dword v1, v0, s_save_buf_rsrc0, s_save_mem_offset slc:1 glc:1 + //buffer_store_lds_dword s_save_buf_rsrc0, s_save_mem_offset lds:1 //save lds to memory doesn't exist in 10 + end + s_add_u32 m0, m0, 256 //every buffer_store_lds does 256 bytes + s_add_u32 s_save_mem_offset, s_save_mem_offset, 256 //mem offset increased by 256 bytes + v_add_nc_u32 v0, v0, 256 + s_cmp_lt_u32 m0, s_save_alloc_size //scc=(m0 < s_save_alloc_size) ? 1 : 0 + s_cbranch_scc1 L_SAVE_LDS_LOOP_W64 //LDS save is complete? + + + /* save SGPRs */ + ////////////////////////////// + //s_getreg_b32 s_save_alloc_size, hwreg(HW_REG_GPR_ALLOC,SQ_WAVE_GPR_ALLOC_SGPR_SIZE_SHIFT,SQ_WAVE_GPR_ALLOC_SGPR_SIZE_SIZE) //spgr_size + //s_add_u32 s_save_alloc_size, s_save_alloc_size, 1 + //s_lshl_b32 s_save_alloc_size, s_save_alloc_size, 4 //Number of SGPRs = (sgpr_size + 1) * 16 (non-zero value) + //s_lshl_b32 s_save_alloc_size, s_save_alloc_size, 3 //In gfx10, Number of SGPRs = (sgpr_size + 1) * 8 (non-zero value) + L_SAVE_SGPR: + //need to look at it is wave32 or wave64 + s_and_b32 m0, s_wave_size, 1 + s_cmp_eq_u32 m0, 1 + s_cbranch_scc1 L_SAVE_SGPR_VMEM_WAVE64 + if (SGPR_SAVE_USE_SQC) + s_lshl_b32 s_save_buf_rsrc2, s_sgpr_save_num, 2 //NUM_RECORDS in bytes + else + s_lshl_b32 s_save_buf_rsrc2, s_sgpr_save_num, 7 //NUM_RECORDS in bytes (32 threads) + end + s_branch L_SAVE_SGPR_CONT + L_SAVE_SGPR_VMEM_WAVE64: + if (SGPR_SAVE_USE_SQC) + s_lshl_b32 s_save_buf_rsrc2, s_sgpr_save_num, 2 //NUM_RECORDS in bytes + else + s_lshl_b32 s_save_buf_rsrc2, s_sgpr_save_num, 8 //NUM_RECORDS in bytes (64 threads) + end + L_SAVE_SGPR_CONT: + if (SWIZZLE_EN) + s_add_u32 s_save_buf_rsrc2, s_save_buf_rsrc2, 0x0 //FIXME need to use swizzle to enable bounds checking? + else + s_mov_b32 s_save_buf_rsrc2, 0x1000000 //NUM_RECORDS in bytes + end + + //s_mov_b32 m0, 0x0 //SGPR initial index value =0 + //s_nop 0x0 //Manually inserted wait states + + s_and_b32 m0, s_wave_size, 1 + s_cmp_eq_u32 m0, 1 + + s_mov_b32 m0, 0x0 //SGPR initial index value =0 + s_nop 0x0 //Manually inserted wait states + + s_cbranch_scc1 L_SAVE_SGPR_LOOP_WAVE64 + + L_SAVE_SGPR_LOOP_WAVE32: + s_movrels_b32 s0, s0 //s0 = s[0+m0] + //zhenxu, adding one more argument to save sgpr function, this is only for vmem, using sqc is not change + write_sgpr_to_mem_wave32(s0, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //PV: the best performance should be using s_buffer_store_dwordx4 + s_add_u32 m0, m0, 1 //next sgpr index + s_cmp_lt_u32 m0, s_sgpr_save_num //scc = (m0 < s_sgpr_save_num) ? 1 : 0 + s_cbranch_scc1 L_SAVE_SGPR_LOOP_WAVE32 //SGPR save is complete? + s_branch L_SAVE_HWREG + + L_SAVE_SGPR_LOOP_WAVE64: + s_movrels_b32 s0, s0 //s0 = s[0+m0] + //zhenxu, adding one more argument to save sgpr function, this is only for vmem, using sqc is not change + write_sgpr_to_mem_wave64(s0, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //PV: the best performance should be using s_buffer_store_dwordx4 + s_add_u32 m0, m0, 1 //next sgpr index + s_cmp_lt_u32 m0, s_sgpr_save_num //scc = (m0 < s_sgpr_save_num) ? 1 : 0 + s_cbranch_scc1 L_SAVE_SGPR_LOOP_WAVE64 //SGPR save is complete? + + + /* save HW registers */ + ////////////////////////////// + L_SAVE_HWREG: + s_mov_b32 s_save_buf_rsrc2, 0x4 //NUM_RECORDS in bytes + if (SWIZZLE_EN) + s_add_u32 s_save_buf_rsrc2, s_save_buf_rsrc2, 0x0 //FIXME need to use swizzle to enable bounds checking? + else + s_mov_b32 s_save_buf_rsrc2, 0x1000000 //NUM_RECORDS in bytes + end + + s_and_b32 m0, s_wave_size, 1 + s_cmp_eq_u32 m0, 1 + s_cbranch_scc1 L_SAVE_HWREG_WAVE64 + + write_sgpr_to_mem_wave32(s_save_m0, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //M0 + + if ((EMU_RUN_HACK) && (EMU_RUN_HACK_SAVE_FIRST_TIME)) + s_add_u32 s_save_pc_lo, s_save_pc_lo, 4 //pc[31:0]+4 + s_addc_u32 s_save_pc_hi, s_save_pc_hi, 0x0 //carry bit over + end + + write_sgpr_to_mem_wave32(s_save_pc_lo, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //PC + write_sgpr_to_mem_wave32(s_save_pc_hi, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) + write_sgpr_to_mem_wave32(s_save_exec_lo, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //EXEC + write_sgpr_to_mem_wave32(s_save_exec_hi, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) + write_sgpr_to_mem_wave32(s_save_status, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //STATUS + + //s_save_trapsts conflicts with s_save_alloc_size + s_getreg_b32 s_save_trapsts, hwreg(HW_REG_TRAPSTS) + write_sgpr_to_mem_wave32(s_save_trapsts, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //TRAPSTS + + //write_sgpr_to_mem_wave32(s_save_xnack_mask_lo, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //XNACK_MASK_LO + write_sgpr_to_mem_wave32(s_save_xnack_mask, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //XNACK_MASK_HI + + //use s_save_tmp would introduce conflict here between s_save_tmp and s_save_buf_rsrc2 + s_getreg_b32 s_save_m0, hwreg(HW_REG_MODE) //MODE + write_sgpr_to_mem_wave32(s_save_m0, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) + if(SAVE_RESTORE_HWID_DDID) + s_getreg_b32 s_save_m0, hwreg(HW_REG_HW_ID1) //HW_ID1, handler records the SE/SA/WGP/SIMD/wave of the original wave + write_sgpr_to_mem_wave32(s_save_m0, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) + end + s_branch L_S_PGM_END_SAVED + + L_SAVE_HWREG_WAVE64: + write_sgpr_to_mem_wave64(s_save_m0, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //M0 + + if ((EMU_RUN_HACK) && (EMU_RUN_HACK_SAVE_FIRST_TIME)) + s_add_u32 s_save_pc_lo, s_save_pc_lo, 4 //pc[31:0]+4 + s_addc_u32 s_save_pc_hi, s_save_pc_hi, 0x0 //carry bit over + end + + write_sgpr_to_mem_wave64(s_save_pc_lo, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //PC + write_sgpr_to_mem_wave64(s_save_pc_hi, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) + write_sgpr_to_mem_wave64(s_save_exec_lo, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //EXEC + write_sgpr_to_mem_wave64(s_save_exec_hi, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) + write_sgpr_to_mem_wave64(s_save_status, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //STATUS + + //s_save_trapsts conflicts with s_save_alloc_size + s_getreg_b32 s_save_trapsts, hwreg(HW_REG_TRAPSTS) + write_sgpr_to_mem_wave64(s_save_trapsts, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //TRAPSTS + + //write_sgpr_to_mem_wave64(s_save_xnack_mask_lo, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //XNACK_MASK_LO + write_sgpr_to_mem_wave64(s_save_xnack_mask, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) //XNACK_MASK_HI + + //use s_save_tmp would introduce conflict here between s_save_tmp and s_save_buf_rsrc2 + s_getreg_b32 s_save_m0, hwreg(HW_REG_MODE) //MODE + write_sgpr_to_mem_wave64(s_save_m0, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) + + + if(SAVE_RESTORE_HWID_DDID) + s_getreg_b32 s_save_m0, hwreg(HW_REG_HW_ID1) //HW_ID1, handler records the SE/SA/WGP/SIMD/wave of the original wave + write_sgpr_to_mem_wave64(s_save_m0, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) + + /* save DDID */ + ////////////////////////////// + L_SAVE_DDID: + //EXEC has been saved, no vector inst following + s_mov_b32 exec_lo, 0x80000000 //Set MSB to 1. Cleared when draw index is returned + s_sendmsg sendmsg(MSG_GET_DDID) + + L_WAIT_DDID_LOOP: + s_nop 7 // sleep a bit + s_bitcmp0_b32 exec_lo, 31 // test to see if MSB is cleared, meaning done + s_cbranch_scc0 L_WAIT_DDID_LOOP + + s_mov_b32 s_save_m0, exec_lo + + + s_mov_b32 s_save_buf_rsrc2, 0x4 //NUM_RECORDS in bytes + if (SWIZZLE_EN) + s_add_u32 s_save_buf_rsrc2, s_save_buf_rsrc2, 0x0 //FIXME need to use swizzle to enable bounds checking? + else + s_mov_b32 s_save_buf_rsrc2, 0x1000000 //NUM_RECORDS in bytes + end + s_and_b32 m0, s_wave_size, 1 + s_cmp_eq_u32 m0, 1 + s_cbranch_scc1 L_SAVE_DDID_WAVE64 + + write_sgpr_to_mem_wave32(s_save_m0, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) + + L_SAVE_DDID_WAVE64: + write_sgpr_to_mem_wave64(s_save_m0, s_save_buf_rsrc0, s_save_mem_offset, SGPR_SAVE_USE_SQC, USE_MTBUF_INSTEAD_OF_MUBUF) + + end + + L_S_PGM_END_SAVED: + /* S_PGM_END_SAVED */ //FIXME graphics ONLY + if ((EMU_RUN_HACK) && (!EMU_RUN_HACK_SAVE_NORMAL_EXIT)) + s_and_b32 s_save_pc_hi, s_save_pc_hi, 0x0000ffff //pc[47:32] + s_add_u32 s_save_pc_lo, s_save_pc_lo, 4 //pc[31:0]+4 + s_addc_u32 s_save_pc_hi, s_save_pc_hi, 0x0 //carry bit over + s_rfe_b64 s_save_pc_lo //Return to the main shader program + else + end + + + s_branch L_END_PGM + + + +/**************************************************************************/ +/* restore routine */ +/**************************************************************************/ + +L_RESTORE: + /* Setup Resource Contants */ + if ((EMU_RUN_HACK) && (!EMU_RUN_HACK_RESTORE_NORMAL)) + //calculate wd_addr using absolute thread id + v_readlane_b32 s_restore_tmp, v9, 0 + //determine it is wave32 or wave64 + s_getreg_b32 s_restore_size, hwreg(HW_REG_IB_STS2,SQ_WAVE_IB_STS2_WAVE64_SHIFT,SQ_WAVE_IB_STS2_WAVE64_SIZE) //change to ttmp13 + s_cmp_eq_u32 s_restore_size, 0 + s_cbranch_scc1 L_RESTORE_WAVE32 + s_lshr_b32 s_restore_tmp, s_restore_tmp, 6 //SAVE WAVE64 + s_branch L_RESTORE_CON + L_RESTORE_WAVE32: + s_lshr_b32 s_restore_tmp, s_restore_tmp, 5 //SAVE WAVE32 + L_RESTORE_CON: + s_mul_i32 s_restore_tmp, s_restore_tmp, WAVE_SPACE + s_add_i32 s_restore_spi_init_lo, s_restore_tmp, WG_BASE_ADDR_LO + s_mov_b32 s_restore_spi_init_hi, WG_BASE_ADDR_HI + s_and_b32 s_restore_spi_init_hi, s_restore_spi_init_hi, CTX_RESTORE_CONTROL + else + end + + s_mov_b32 s_restore_buf_rsrc0, s_restore_spi_init_lo //base_addr_lo + s_and_b32 s_restore_buf_rsrc1, s_restore_spi_init_hi, 0x0000FFFF //base_addr_hi + s_or_b32 s_restore_buf_rsrc1, s_restore_buf_rsrc1, S_RESTORE_BUF_RSRC_WORD1_STRIDE + 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 + s_and_b32 s_restore_tmp, s_restore_spi_init_hi, S_RESTORE_SPI_INIT_ATC_MASK + s_lshr_b32 s_restore_tmp, s_restore_tmp, (S_RESTORE_SPI_INIT_ATC_SHIFT-SQ_BUF_RSRC_WORD1_ATC_SHIFT) //get ATC bit into position + s_or_b32 s_restore_buf_rsrc3, s_restore_buf_rsrc3, s_restore_tmp //or ATC + s_and_b32 s_restore_tmp, s_restore_spi_init_hi, S_RESTORE_SPI_INIT_MTYPE_MASK + s_lshr_b32 s_restore_tmp, s_restore_tmp, (S_RESTORE_SPI_INIT_MTYPE_SHIFT-SQ_BUF_RSRC_WORD3_MTYPE_SHIFT) //get MTYPE bits into position + s_or_b32 s_restore_buf_rsrc3, s_restore_buf_rsrc3, s_restore_tmp //or MTYPE + //determine it is wave32 or wave64 + s_getreg_b32 s_restore_size, hwreg(HW_REG_IB_STS2,SQ_WAVE_IB_STS2_WAVE64_SHIFT,SQ_WAVE_IB_STS2_WAVE64_SIZE) + s_or_b32 s_restore_size, s_restore_spi_init_hi, s_restore_size //share s_wave_size with exec_hi + + /* global mem offset */ + s_mov_b32 s_restore_mem_offset, 0x0 //mem offset initial value = 0 + + /* restore VGPRs */ + ////////////////////////////// + L_RESTORE_VGPR: + + s_mov_b32 exec_lo, 0xFFFFFFFF //need every thread from now on //be consistent with SAVE although can be moved ahead + s_and_b32 m0, s_restore_size, 1 + s_cmp_eq_u32 m0, 1 + s_cbranch_scc1 L_ENABLE_RESTORE_VGPR_EXEC_HI + s_mov_b32 exec_hi, 0x00000000 + s_branch L_RESTORE_VGPR_NORMAL + L_ENABLE_RESTORE_VGPR_EXEC_HI: + s_mov_b32 exec_hi, 0xFFFFFFFF + L_RESTORE_VGPR_NORMAL: + s_getreg_b32 s_restore_alloc_size, hwreg(HW_REG_GPR_ALLOC,SQ_WAVE_GPR_ALLOC_VGPR_SIZE_SHIFT,SQ_WAVE_GPR_ALLOC_VGPR_SIZE_SIZE) //vpgr_size + s_add_u32 s_restore_alloc_size, s_restore_alloc_size, 1 + s_lshl_b32 s_restore_alloc_size, s_restore_alloc_size, 2 //Number of VGPRs = (vgpr_size + 1) * 4 (non-zero value) + //determine it is wave32 or wave64 + s_and_b32 m0, s_restore_size, 1 + s_cmp_eq_u32 m0, 1 + s_cbranch_scc1 L_RESTORE_VGPR_WAVE64 + + s_lshl_b32 s_restore_buf_rsrc2, s_restore_alloc_size, 7 //NUM_RECORDS in bytes (32 threads*4) + if (SWIZZLE_EN) + s_add_u32 s_restore_buf_rsrc2, s_restore_buf_rsrc2, 0x0 //FIXME need to use swizzle to enable bounds checking? + else + s_mov_b32 s_restore_buf_rsrc2, 0x1000000 //NUM_RECORDS in bytes + end + + s_mov_b32 s_restore_mem_offset_save, s_restore_mem_offset // restore start with v1, v0 will be the last + s_add_u32 s_restore_mem_offset, s_restore_mem_offset, 128 + s_mov_b32 m0, 1 //VGPR initial index value = 1 + //s_set_gpr_idx_on m0, 0x8 //M0[7:0] = M0[7:0] and M0[15:12] = 0x8 + //s_add_u32 s_restore_alloc_size, s_restore_alloc_size, 0x8000 //add 0x8000 since we compare m0 against it later, might not need this in gfx10 + + L_RESTORE_VGPR_WAVE32_LOOP: + if(USE_MTBUF_INSTEAD_OF_MUBUF) + tbuffer_load_format_x v0, v0, s_restore_buf_rsrc0, s_restore_mem_offset format:BUF_NUM_FORMAT_FLOAT format: BUF_DATA_FORMAT_32 slc:1 glc:1 + else + buffer_load_dword v0, v0, s_restore_buf_rsrc0, s_restore_mem_offset slc:1 glc:1 + end + s_waitcnt vmcnt(0) //ensure data ready + v_movreld_b32 v0, v0 //v[0+m0] = v0 + s_add_u32 m0, m0, 1 //next vgpr index + s_add_u32 s_restore_mem_offset, s_restore_mem_offset, 128 //every buffer_load_dword does 128 bytes + s_cmp_lt_u32 m0, s_restore_alloc_size //scc = (m0 < s_restore_alloc_size) ? 1 : 0 + s_cbranch_scc1 L_RESTORE_VGPR_WAVE32_LOOP //VGPR restore (except v0) is complete? + //s_set_gpr_idx_off + /* VGPR restore on v0 */ + if(USE_MTBUF_INSTEAD_OF_MUBUF) + tbuffer_load_format_x v0, v0, s_restore_buf_rsrc0, s_restore_mem_offset_save format:BUF_NUM_FORMAT_FLOAT format: BUF_DATA_FORMAT_32 slc:1 glc:1 + else + buffer_load_dword v0, v0, s_restore_buf_rsrc0, s_restore_mem_offset_save slc:1 glc:1 + end + + s_branch L_RESTORE_LDS + + L_RESTORE_VGPR_WAVE64: + s_lshl_b32 s_restore_buf_rsrc2, s_restore_alloc_size, 8 //NUM_RECORDS in bytes (64 threads*4) + if (SWIZZLE_EN) + s_add_u32 s_restore_buf_rsrc2, s_restore_buf_rsrc2, 0x0 //FIXME need to use swizzle to enable bounds checking? + else + s_mov_b32 s_restore_buf_rsrc2, 0x1000000 //NUM_RECORDS in bytes + end + + s_mov_b32 s_restore_mem_offset_save, s_restore_mem_offset // restore start with v1, v0 will be the last + s_add_u32 s_restore_mem_offset, s_restore_mem_offset, 256 + s_mov_b32 m0, 1 //VGPR initial index value = 1 + L_RESTORE_VGPR_WAVE64_LOOP: + if(USE_MTBUF_INSTEAD_OF_MUBUF) + tbuffer_load_format_x v0, v0, s_restore_buf_rsrc0, s_restore_mem_offset format:BUF_NUM_FORMAT_FLOAT format: BUF_DATA_FORMAT_32 slc:1 glc:1 + else + buffer_load_dword v0, v0, s_restore_buf_rsrc0, s_restore_mem_offset slc:1 glc:1 + end + s_waitcnt vmcnt(0) //ensure data ready + v_movreld_b32 v0, v0 //v[0+m0] = v0 + s_add_u32 m0, m0, 1 //next vgpr index + s_add_u32 s_restore_mem_offset, s_restore_mem_offset, 256 //every buffer_load_dword does 256 bytes + s_cmp_lt_u32 m0, s_restore_alloc_size //scc = (m0 < s_restore_alloc_size) ? 1 : 0 + s_cbranch_scc1 L_RESTORE_VGPR_WAVE64_LOOP //VGPR restore (except v0) is complete? + //s_set_gpr_idx_off + // + //Below part will be the restore shared vgpr part (new for gfx10) + s_getreg_b32 s_restore_alloc_size, hwreg(HW_REG_LDS_ALLOC,SQ_WAVE_LDS_ALLOC_VGPR_SHARED_SIZE_SHIFT,SQ_WAVE_LDS_ALLOC_VGPR_SHARED_SIZE_SIZE) //shared_vgpr_size + s_and_b32 s_restore_alloc_size, s_restore_alloc_size, 0xFFFFFFFF //shared_vgpr_size is zero? + s_cbranch_scc0 L_RESTORE_V0 //no shared_vgpr used? jump to L_SAVE_LDS + s_lshl_b32 s_restore_alloc_size, s_restore_alloc_size, 3 //Number of SHARED_VGPRs = shared_vgpr_size * 8 (non-zero value) + //m0 now has the value of normal vgpr count, just add the m0 with shared_vgpr count to get the total count. + //restore shared_vgpr will start from the index of m0 + s_add_u32 s_restore_alloc_size, s_restore_alloc_size, m0 + s_mov_b32 exec_lo, 0xFFFFFFFF + s_mov_b32 exec_hi, 0x00000000 + L_RESTORE_SHARED_VGPR_WAVE64_LOOP: + buffer_load_dword v0, v0, s_restore_buf_rsrc0, s_restore_mem_offset slc:1 glc:1 + s_waitcnt vmcnt(0) //ensure data ready + v_movreld_b32 v0, v0 //v[0+m0] = v0 + s_add_u32 m0, m0, 1 //next vgpr index + s_add_u32 s_restore_mem_offset, s_restore_mem_offset, 128 //every buffer_load_dword does 256 bytes + s_cmp_lt_u32 m0, s_restore_alloc_size //scc = (m0 < s_restore_alloc_size) ? 1 : 0 + s_cbranch_scc1 L_RESTORE_SHARED_VGPR_WAVE64_LOOP //VGPR restore (except v0) is complete? + + s_mov_b32 exec_hi, 0xFFFFFFFF //restore back exec_hi before restoring V0!! + + /* VGPR restore on v0 */ + L_RESTORE_V0: + if(USE_MTBUF_INSTEAD_OF_MUBUF) + tbuffer_load_format_x v0, v0, s_restore_buf_rsrc0, s_restore_mem_offset_save format:BUF_NUM_FORMAT_FLOAT format: BUF_DATA_FORMAT_32 slc:1 glc:1 + else + buffer_load_dword v0, v0, s_restore_buf_rsrc0, s_restore_mem_offset_save slc:1 glc:1 + end + + + /* restore LDS */ + ////////////////////////////// + L_RESTORE_LDS: + + //Only need to check the first wave + /* the first wave in the threadgroup */ + s_and_b32 s_restore_tmp, s_restore_size, S_RESTORE_SPI_INIT_FIRST_WAVE_MASK + s_cbranch_scc0 L_RESTORE_SGPR + + s_mov_b32 exec_lo, 0xFFFFFFFF //need every thread from now on //be consistent with SAVE although can be moved ahead + s_and_b32 m0, s_restore_size, 1 + s_cmp_eq_u32 m0, 1 + s_cbranch_scc1 L_ENABLE_RESTORE_LDS_EXEC_HI + s_mov_b32 exec_hi, 0x00000000 + s_branch L_RESTORE_LDS_NORMAL + L_ENABLE_RESTORE_LDS_EXEC_HI: + s_mov_b32 exec_hi, 0xFFFFFFFF + L_RESTORE_LDS_NORMAL: + s_getreg_b32 s_restore_alloc_size, hwreg(HW_REG_LDS_ALLOC,SQ_WAVE_LDS_ALLOC_LDS_SIZE_SHIFT,SQ_WAVE_LDS_ALLOC_LDS_SIZE_SIZE) //lds_size + s_and_b32 s_restore_alloc_size, s_restore_alloc_size, 0xFFFFFFFF //lds_size is zero? + s_cbranch_scc0 L_RESTORE_SGPR //no lds used? jump to L_RESTORE_VGPR + s_lshl_b32 s_restore_alloc_size, s_restore_alloc_size, 6 //LDS size in dwords = lds_size * 64dw + s_lshl_b32 s_restore_alloc_size, s_restore_alloc_size, 2 //LDS size in bytes + s_mov_b32 s_restore_buf_rsrc2, s_restore_alloc_size //NUM_RECORDS in bytes + if (SWIZZLE_EN) + s_add_u32 s_restore_buf_rsrc2, s_restore_buf_rsrc2, 0x0 //FIXME need to use swizzle to enable bounds checking? + else + s_mov_b32 s_restore_buf_rsrc2, 0x1000000 //NUM_RECORDS in bytes + end + + s_and_b32 m0, s_wave_size, 1 + s_cmp_eq_u32 m0, 1 + s_mov_b32 m0, 0x0 + s_cbranch_scc1 L_RESTORE_LDS_LOOP_W64 + + L_RESTORE_LDS_LOOP_W32: + if (SAVE_LDS) + buffer_load_dword v0, v0, s_restore_buf_rsrc0, s_restore_mem_offset lds:1 + s_waitcnt 0 + end + s_add_u32 m0, m0, 128 //every buffer_load_dword does 256 bytes + s_add_u32 s_restore_mem_offset, s_restore_mem_offset, 128 //mem offset increased by 256 bytes + s_cmp_lt_u32 m0, s_restore_alloc_size //scc=(m0 < s_restore_alloc_size) ? 1 : 0 + s_cbranch_scc1 L_RESTORE_LDS_LOOP_W32 //LDS restore is complete? + s_branch L_RESTORE_SGPR + + L_RESTORE_LDS_LOOP_W64: + if (SAVE_LDS) + buffer_load_dword v0, v0, s_restore_buf_rsrc0, s_restore_mem_offset lds:1 + s_waitcnt 0 + end + s_add_u32 m0, m0, 256 //every buffer_load_dword does 256 bytes + s_add_u32 s_restore_mem_offset, s_restore_mem_offset, 256 //mem offset increased by 256 bytes + s_cmp_lt_u32 m0, s_restore_alloc_size //scc=(m0 < s_restore_alloc_size) ? 1 : 0 + s_cbranch_scc1 L_RESTORE_LDS_LOOP_W64 //LDS restore is complete? + + + /* restore SGPRs */ + ////////////////////////////// + //s_getreg_b32 s_restore_alloc_size, hwreg(HW_REG_GPR_ALLOC,SQ_WAVE_GPR_ALLOC_SGPR_SIZE_SHIFT,SQ_WAVE_GPR_ALLOC_SGPR_SIZE_SIZE) //spgr_size + //s_add_u32 s_restore_alloc_size, s_restore_alloc_size, 1 + //s_lshl_b32 s_restore_alloc_size, s_restore_alloc_size, 4 //Number of SGPRs = (sgpr_size + 1) * 16 (non-zero value) + //s_lshl_b32 s_restore_alloc_size, s_restore_alloc_size, 3 //Number of SGPRs = (sgpr_size + 1) * 8 (non-zero value) + L_RESTORE_SGPR: + //need to look at it is wave32 or wave64 + s_and_b32 m0, s_restore_size, 1 + s_cmp_eq_u32 m0, 1 + s_cbranch_scc1 L_RESTORE_SGPR_VMEM_WAVE64 + if (SGPR_SAVE_USE_SQC) + s_lshl_b32 s_restore_buf_rsrc2, s_sgpr_save_num, 2 //NUM_RECORDS in bytes + else + s_lshl_b32 s_restore_buf_rsrc2, s_sgpr_save_num, 7 //NUM_RECORDS in bytes (32 threads) + end + s_branch L_RESTORE_SGPR_CONT + L_RESTORE_SGPR_VMEM_WAVE64: + if (SGPR_SAVE_USE_SQC) + s_lshl_b32 s_restore_buf_rsrc2, s_sgpr_save_num, 2 //NUM_RECORDS in bytes + else + s_lshl_b32 s_restore_buf_rsrc2, s_sgpr_save_num, 8 //NUM_RECORDS in bytes (64 threads) + end + + L_RESTORE_SGPR_CONT: + if (SWIZZLE_EN) + s_add_u32 s_restore_buf_rsrc2, s_restore_buf_rsrc2, 0x0 //FIXME need to use swizzle to enable bounds checking? + else + s_mov_b32 s_restore_buf_rsrc2, 0x1000000 //NUM_RECORDS in bytes + end + + s_and_b32 m0, s_restore_size, 1 + s_cmp_eq_u32 m0, 1 + s_cbranch_scc1 L_RESTORE_SGPR_WAVE64 + + read_sgpr_from_mem_wave32(s_restore_tmp, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //save s0 to s_restore_tmp + s_mov_b32 m0, 0x1 + + L_RESTORE_SGPR_LOOP_WAVE32: + read_sgpr_from_mem_wave32(s0, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //PV: further performance improvement can be made + s_waitcnt lgkmcnt(0) //ensure data ready + s_movreld_b32 s0, s0 //s[0+m0] = s0 + s_nop 0 // hazard SALU M0=> S_MOVREL + s_add_u32 m0, m0, 1 //next sgpr index + s_cmp_lt_u32 m0, s_sgpr_save_num //scc = (m0 < s_restore_alloc_size) ? 1 : 0 + s_cbranch_scc1 L_RESTORE_SGPR_LOOP_WAVE32 //SGPR restore (except s0) is complete? + s_mov_b32 s0, s_restore_tmp /* SGPR restore on s0 */ + s_branch L_RESTORE_HWREG + + L_RESTORE_SGPR_WAVE64: + read_sgpr_from_mem_wave64(s_restore_tmp, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //save s0 to s_restore_tmp + s_mov_b32 m0, 0x1 //SGPR initial index value =1 //go on with with s1 + + L_RESTORE_SGPR_LOOP_WAVE64: + read_sgpr_from_mem_wave64(s0, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //PV: further performance improvement can be made + s_waitcnt lgkmcnt(0) //ensure data ready + s_movreld_b32 s0, s0 //s[0+m0] = s0 + s_nop 0 // hazard SALU M0=> S_MOVREL + s_add_u32 m0, m0, 1 //next sgpr index + s_cmp_lt_u32 m0, s_sgpr_save_num //scc = (m0 < s_restore_alloc_size) ? 1 : 0 + s_cbranch_scc1 L_RESTORE_SGPR_LOOP_WAVE64 //SGPR restore (except s0) is complete? + s_mov_b32 s0, s_restore_tmp /* SGPR restore on s0 */ + + + /* restore HW registers */ + ////////////////////////////// + L_RESTORE_HWREG: + s_mov_b32 s_restore_buf_rsrc2, 0x4 //NUM_RECORDS in bytes + if (SWIZZLE_EN) + s_add_u32 s_restore_buf_rsrc2, s_restore_buf_rsrc2, 0x0 //FIXME need to use swizzle to enable bounds checking? + else + s_mov_b32 s_restore_buf_rsrc2, 0x1000000 //NUM_RECORDS in bytes + end + + s_and_b32 m0, s_restore_size, 1 + s_cmp_eq_u32 m0, 1 + s_cbranch_scc1 L_RESTORE_HWREG_WAVE64 + + read_sgpr_from_mem_wave32(s_restore_m0, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //M0 + read_sgpr_from_mem_wave32(s_restore_pc_lo, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //PC + read_sgpr_from_mem_wave32(s_restore_pc_hi, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) + read_sgpr_from_mem_wave32(s_restore_exec_lo, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //EXEC + read_sgpr_from_mem_wave32(s_restore_exec_hi, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) + read_sgpr_from_mem_wave32(s_restore_status, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //STATUS + read_sgpr_from_mem_wave32(s_restore_trapsts, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //TRAPSTS + //read_sgpr_from_mem_wave32(xnack_mask_lo, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //XNACK_MASK_LO + //read_sgpr_from_mem_wave32(xnack_mask_hi, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //XNACK_MASK_HI + read_sgpr_from_mem_wave32(s_restore_xnack_mask, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //XNACK_MASK + read_sgpr_from_mem_wave32(s_restore_mode, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //MODE + if(SAVE_RESTORE_HWID_DDID) + read_sgpr_from_mem_wave32(s_restore_hwid1, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //HW_ID1 + end + s_branch L_RESTORE_HWREG_FINISH + + L_RESTORE_HWREG_WAVE64: + read_sgpr_from_mem_wave64(s_restore_m0, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //M0 + read_sgpr_from_mem_wave64(s_restore_pc_lo, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //PC + read_sgpr_from_mem_wave64(s_restore_pc_hi, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) + read_sgpr_from_mem_wave64(s_restore_exec_lo, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //EXEC + read_sgpr_from_mem_wave64(s_restore_exec_hi, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) + read_sgpr_from_mem_wave64(s_restore_status, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //STATUS + read_sgpr_from_mem_wave64(s_restore_trapsts, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //TRAPSTS + //read_sgpr_from_mem_wave64(xnack_mask_lo, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //XNACK_MASK_LO + //read_sgpr_from_mem_wave64(xnack_mask_hi, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //XNACK_MASK_HI + read_sgpr_from_mem_wave64(s_restore_xnack_mask, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //XNACK_MASK + read_sgpr_from_mem_wave64(s_restore_mode, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //MODE + if(SAVE_RESTORE_HWID_DDID) + read_sgpr_from_mem_wave64(s_restore_hwid1, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) //HW_ID1 + end + L_RESTORE_HWREG_FINISH: + s_waitcnt lgkmcnt(0) //from now on, it is safe to restore STATUS and IB_STS + + + + if(SAVE_RESTORE_HWID_DDID) + L_RESTORE_DDID: + s_mov_b32 m0, s_restore_hwid1 //virture ttrace support: The save-context handler records the SE/SA/WGP/SIMD/wave of the original wave + s_ttracedata //and then can output it as SHADER_DATA to ttrace on restore to provide a correlation across the save-restore + + s_mov_b32 s_restore_buf_rsrc2, 0x4 //NUM_RECORDS in bytes + if (SWIZZLE_EN) + s_add_u32 s_restore_buf_rsrc2, s_restore_buf_rsrc2, 0x0 //FIXME need to use swizzle to enable bounds checking? + else + s_mov_b32 s_restore_buf_rsrc2, 0x1000000 //NUM_RECORDS in bytes + end + + s_and_b32 m0, s_restore_size, 1 + s_cmp_eq_u32 m0, 1 + s_cbranch_scc1 L_RESTORE_DDID_WAVE64 + + read_sgpr_from_mem_wave32(s_restore_ddid, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) + s_branch L_RESTORE_DDID_FINISH + L_RESTORE_DDID_WAVE64: + read_sgpr_from_mem_wave64(s_restore_ddid, s_restore_buf_rsrc0, s_restore_mem_offset, SGPR_SAVE_USE_SQC) + + L_RESTORE_DDID_FINISH: + s_waitcnt lgkmcnt(0) + //s_mov_b32 m0, s_restore_ddid + //s_ttracedata + if (RESTORE_DDID_IN_SGPR18) + s_mov_b32 s18, s_restore_ddid + end + + end + + s_and_b32 s_restore_pc_hi, s_restore_pc_hi, 0x0000ffff //pc[47:32] //Do it here in order not to affect STATUS + + //for normal save & restore, the saved PC points to the next inst to execute, no adjustment needs to be made, otherwise: + if ((EMU_RUN_HACK) && (!EMU_RUN_HACK_RESTORE_NORMAL)) + s_add_u32 s_restore_pc_lo, s_restore_pc_lo, 8 //pc[31:0]+8 //two back-to-back s_trap are used (first for save and second for restore) + s_addc_u32 s_restore_pc_hi, s_restore_pc_hi, 0x0 //carry bit over + end + if ((EMU_RUN_HACK) && (EMU_RUN_HACK_RESTORE_NORMAL)) + s_add_u32 s_restore_pc_lo, s_restore_pc_lo, 4 //pc[31:0]+4 // save is hack through s_trap but restore is normal + s_addc_u32 s_restore_pc_hi, s_restore_pc_hi, 0x0 //carry bit over + end + + 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 + + s_and_b32 s_restore_m0, SQ_WAVE_TRAPSTS_PRE_SAVECTX_MASK, s_restore_trapsts + s_setreg_b32 hwreg(HW_REG_TRAPSTS, SQ_WAVE_TRAPSTS_PRE_SAVECTX_SHIFT, SQ_WAVE_TRAPSTS_PRE_SAVECTX_SIZE), s_restore_m0 + s_setreg_b32 hwreg(HW_REG_SHADER_XNACK_MASK), s_restore_xnack_mask //restore xnack_mask + s_and_b32 s_restore_m0, SQ_WAVE_TRAPSTS_POST_SAVECTX_MASK, s_restore_trapsts + s_lshr_b32 s_restore_m0, s_restore_m0, SQ_WAVE_TRAPSTS_POST_SAVECTX_SHIFT + s_setreg_b32 hwreg(HW_REG_TRAPSTS, SQ_WAVE_TRAPSTS_POST_SAVECTX_SHIFT, SQ_WAVE_TRAPSTS_POST_SAVECTX_SIZE), s_restore_m0 + //s_setreg_b32 hwreg(HW_REG_TRAPSTS), s_restore_trapsts //don't overwrite SAVECTX bit as it may be set through external SAVECTX during restore + s_setreg_b32 hwreg(HW_REG_MODE), s_restore_mode + //reuse s_restore_m0 as a temp register + s_and_b32 s_restore_m0, s_restore_pc_hi, S_SAVE_PC_HI_RCNT_MASK + s_lshr_b32 s_restore_m0, s_restore_m0, S_SAVE_PC_HI_RCNT_SHIFT + s_lshl_b32 s_restore_m0, s_restore_m0, SQ_WAVE_IB_STS_RCNT_SHIFT + s_mov_b32 s_restore_tmp, 0x0 //IB_STS is zero + s_or_b32 s_restore_tmp, s_restore_tmp, s_restore_m0 + s_and_b32 s_restore_m0, s_restore_pc_hi, S_SAVE_PC_HI_FIRST_REPLAY_MASK + s_lshr_b32 s_restore_m0, s_restore_m0, S_SAVE_PC_HI_FIRST_REPLAY_SHIFT + s_lshl_b32 s_restore_m0, s_restore_m0, SQ_WAVE_IB_STS_FIRST_REPLAY_SHIFT + s_or_b32 s_restore_tmp, s_restore_tmp, s_restore_m0 + s_and_b32 s_restore_m0, s_restore_status, SQ_WAVE_STATUS_INST_ATC_MASK + s_lshr_b32 s_restore_m0, s_restore_m0, SQ_WAVE_STATUS_INST_ATC_SHIFT + s_setreg_b32 hwreg(HW_REG_IB_STS), s_restore_tmp + s_setreg_b32 hwreg(HW_REG_STATUS), s_restore_status + + s_barrier //barrier to ensure the readiness of LDS before access attemps from any other wave in the same TG //FIXME not performance-optimal at this time + + +// s_rfe_b64 s_restore_pc_lo //Return to the main shader program and resume execution + s_rfe_b64 s_restore_pc_lo // s_restore_m0[0] is used to set STATUS.inst_atc + + +/**************************************************************************/ +/* the END */ +/**************************************************************************/ +L_END_PGM: + s_endpgm + +end + + +/**************************************************************************/ +/* the helper functions */ +/**************************************************************************/ +function write_sgpr_to_mem_wave32(s, s_rsrc, s_mem_offset, use_sqc, use_mtbuf) + if (use_sqc) + s_mov_b32 exec_lo, m0 //assuming exec_lo is not needed anymore from this point on + s_mov_b32 m0, s_mem_offset + s_buffer_store_dword s, s_rsrc, m0 glc:1 + s_add_u32 s_mem_offset, s_mem_offset, 4 + s_mov_b32 m0, exec_lo + elsif (use_mtbuf) + v_mov_b32 v0, s + tbuffer_store_format_x v0, v0, s_rsrc, s_mem_offset format:BUF_NUM_FORMAT_FLOAT format: BUF_DATA_FORMAT_32 slc:1 glc:1 + s_add_u32 s_mem_offset, s_mem_offset, 128 + else + v_mov_b32 v0, s + buffer_store_dword v0, v0, s_rsrc, s_mem_offset slc:1 glc:1 + s_add_u32 s_mem_offset, s_mem_offset, 128 + end +end + +function write_sgpr_to_mem_wave64(s, s_rsrc, s_mem_offset, use_sqc, use_mtbuf) + if (use_sqc) + s_mov_b32 exec_lo, m0 //assuming exec_lo is not needed anymore from this point on + s_mov_b32 m0, s_mem_offset + s_buffer_store_dword s, s_rsrc, m0 glc:1 + s_add_u32 s_mem_offset, s_mem_offset, 4 + s_mov_b32 m0, exec_lo + elsif (use_mtbuf) + v_mov_b32 v0, s + tbuffer_store_format_x v0, v0, s_rsrc, s_mem_offset format:BUF_NUM_FORMAT_FLOAT format: BUF_DATA_FORMAT_32 slc:1 glc:1 + s_add_u32 s_mem_offset, s_mem_offset, 256 + else + v_mov_b32 v0, s + buffer_store_dword v0, v0, s_rsrc, s_mem_offset slc:1 glc:1 + s_add_u32 s_mem_offset, s_mem_offset, 256 + end +end + +function read_sgpr_from_mem_wave32(s, s_rsrc, s_mem_offset, use_sqc) + s_buffer_load_dword s, s_rsrc, s_mem_offset glc:1 + if (use_sqc) + s_add_u32 s_mem_offset, s_mem_offset, 4 + else + s_add_u32 s_mem_offset, s_mem_offset, 128 + end +end + +function read_sgpr_from_mem_wave64(s, s_rsrc, s_mem_offset, use_sqc) + s_buffer_load_dword s, s_rsrc, s_mem_offset glc:1 + if (use_sqc) + s_add_u32 s_mem_offset, s_mem_offset, 4 + else + s_add_u32 s_mem_offset, s_mem_offset, 256 + end +end + |