cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/amd/amdkfd/kfd_dbgdev.c

/*
 * Copyright 2014 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.
 *
 */

#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/log2.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/device.h>

#include "kfd_pm4_headers.h"
#include "kfd_pm4_headers_diq.h"
#include "kfd_kernel_queue.h"
#include "kfd_priv.h"
#include "kfd_pm4_opcodes.h"
#include "cik_regs.h"
#include "kfd_dbgmgr.h"
#include "kfd_dbgdev.h"
#include "kfd_device_queue_manager.h"
#include "../../radeon/cik_reg.h"


static void dbgdev_address_watch_disable_nodiq(struct kfd_dev *dev) { BUG_ON(!dev || !dev->kfd2kgd); dev->kfd2kgd->address_watch_disable(dev->kgd); }

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static int dbgdev_diq_submit_ib(struct kfd_dbgdev *dbgdev, unsigned int pasid, uint64_t vmid0_address, uint32_t *packet_buff, size_t size_in_bytes) { struct pm4__release_mem *rm_packet; struct pm4__indirect_buffer_pasid *ib_packet; struct kfd_mem_obj *mem_obj; size_t pq_packets_size_in_bytes; union ULARGE_INTEGER *largep; union ULARGE_INTEGER addr; struct kernel_queue *kq; uint64_t *rm_state; unsigned int *ib_packet_buff; int status; BUG_ON(!dbgdev || !dbgdev->kq || !packet_buff || !size_in_bytes); kq = dbgdev->kq; pq_packets_size_in_bytes = sizeof(struct pm4__release_mem) + sizeof(struct pm4__indirect_buffer_pasid); /* * We acquire a buffer from DIQ * The receive packet buff will be sitting on the Indirect Buffer * and in the PQ we put the IB packet + sync packet(s). */ status = kq->ops.acquire_packet_buffer(kq, pq_packets_size_in_bytes / sizeof(uint32_t), &ib_packet_buff); if (status != 0) { pr_err("amdkfd: acquire_packet_buffer failed\n"); return status; } memset(ib_packet_buff, 0, pq_packets_size_in_bytes); ib_packet = (struct pm4__indirect_buffer_pasid *) (ib_packet_buff); ib_packet->header.count = 3; ib_packet->header.opcode = IT_INDIRECT_BUFFER_PASID; ib_packet->header.type = PM4_TYPE_3; largep = (union ULARGE_INTEGER *) &vmid0_address; ib_packet->bitfields2.ib_base_lo = largep->u.low_part >> 2; ib_packet->bitfields3.ib_base_hi = largep->u.high_part; ib_packet->control = (1 << 23) | (1 << 31) | ((size_in_bytes / sizeof(uint32_t)) & 0xfffff); ib_packet->bitfields5.pasid = pasid; /* * for now we use release mem for GPU-CPU synchronization * Consider WaitRegMem + WriteData as a better alternative * we get a GART allocations ( gpu/cpu mapping), * for the sync variable, and wait until: * (a) Sync with HW * (b) Sync var is written by CP to mem. */ rm_packet = (struct pm4__release_mem *) (ib_packet_buff + (sizeof(struct pm4__indirect_buffer_pasid) / sizeof(unsigned int))); status = kfd_gtt_sa_allocate(dbgdev->dev, sizeof(uint64_t), &mem_obj); if (status != 0) { pr_err("amdkfd: Failed to allocate GART memory\n"); kq->ops.rollback_packet(kq); return status; } rm_state = (uint64_t *) mem_obj->cpu_ptr; *rm_state = QUEUESTATE__ACTIVE_COMPLETION_PENDING; rm_packet->header.opcode = IT_RELEASE_MEM; rm_packet->header.type = PM4_TYPE_3; rm_packet->header.count = sizeof(struct pm4__release_mem) / sizeof(unsigned int) - 2; rm_packet->bitfields2.event_type = CACHE_FLUSH_AND_INV_TS_EVENT; rm_packet->bitfields2.event_index = event_index___release_mem__end_of_pipe; rm_packet->bitfields2.cache_policy = cache_policy___release_mem__lru; rm_packet->bitfields2.atc = 0; rm_packet->bitfields2.tc_wb_action_ena = 1; addr.quad_part = mem_obj->gpu_addr; rm_packet->bitfields4.address_lo_32b = addr.u.low_part >> 2; rm_packet->address_hi = addr.u.high_part; rm_packet->bitfields3.data_sel = data_sel___release_mem__send_64_bit_data; rm_packet->bitfields3.int_sel = int_sel___release_mem__send_data_after_write_confirm; rm_packet->bitfields3.dst_sel = dst_sel___release_mem__memory_controller; rm_packet->data_lo = QUEUESTATE__ACTIVE; kq->ops.submit_packet(kq); /* Wait till CP writes sync code: */ status = amdkfd_fence_wait_timeout( (unsigned int *) rm_state, QUEUESTATE__ACTIVE, 1500); kfd_gtt_sa_free(dbgdev->dev, mem_obj); return status; }

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static int dbgdev_register_nodiq(struct kfd_dbgdev *dbgdev) { BUG_ON(!dbgdev); /* * no action is needed in this case, * just make sure diq will not be used */ dbgdev->kq = NULL; return 0; }

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static int dbgdev_register_diq(struct kfd_dbgdev *dbgdev) { struct queue_properties properties; unsigned int qid; struct kernel_queue *kq = NULL; int status; BUG_ON(!dbgdev || !dbgdev->pqm || !dbgdev->dev); status = pqm_create_queue(dbgdev->pqm, dbgdev->dev, NULL, &properties, 0, KFD_QUEUE_TYPE_DIQ, &qid); if (status) { pr_err("amdkfd: Failed to create DIQ\n"); return status; } pr_debug("DIQ Created with queue id: %d\n", qid); kq = pqm_get_kernel_queue(dbgdev->pqm, qid); if (kq == NULL) { pr_err("amdkfd: Error getting DIQ\n"); pqm_destroy_queue(dbgdev->pqm, qid); return -EFAULT; } dbgdev->kq = kq; return status; }

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static int dbgdev_unregister_nodiq(struct kfd_dbgdev *dbgdev) { BUG_ON(!dbgdev || !dbgdev->dev); /* disable watch address */ dbgdev_address_watch_disable_nodiq(dbgdev->dev); return 0; }

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static int dbgdev_unregister_diq(struct kfd_dbgdev *dbgdev) { /* todo - disable address watch */ int status; BUG_ON(!dbgdev || !dbgdev->pqm || !dbgdev->kq); status = pqm_destroy_queue(dbgdev->pqm, dbgdev->kq->queue->properties.queue_id); dbgdev->kq = NULL; return status; }

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static void dbgdev_address_watch_set_registers( const struct dbg_address_watch_info *adw_info, union TCP_WATCH_ADDR_H_BITS *addrHi, union TCP_WATCH_ADDR_L_BITS *addrLo, union TCP_WATCH_CNTL_BITS *cntl, unsigned int index, unsigned int vmid) { union ULARGE_INTEGER addr; BUG_ON(!adw_info || !addrHi || !addrLo || !cntl); addr.quad_part = 0; addrHi->u32All = 0; addrLo->u32All = 0; cntl->u32All = 0; if (adw_info->watch_mask != NULL) cntl->bitfields.mask = (uint32_t) (adw_info->watch_mask[index] & ADDRESS_WATCH_REG_CNTL_DEFAULT_MASK); else cntl->bitfields.mask = ADDRESS_WATCH_REG_CNTL_DEFAULT_MASK; addr.quad_part = (unsigned long long) adw_info->watch_address[index]; addrHi->bitfields.addr = addr.u.high_part & ADDRESS_WATCH_REG_ADDHIGH_MASK; addrLo->bitfields.addr = (addr.u.low_part >> ADDRESS_WATCH_REG_ADDLOW_SHIFT); cntl->bitfields.mode = adw_info->watch_mode[index]; cntl->bitfields.vmid = (uint32_t) vmid; /* for now assume it is an ATC address */ cntl->u32All |= ADDRESS_WATCH_REG_CNTL_ATC_BIT; pr_debug("\t\t%20s %08x\n", "set reg mask :", cntl->bitfields.mask); pr_debug("\t\t%20s %08x\n", "set reg add high :", addrHi->bitfields.addr); pr_debug("\t\t%20s %08x\n", "set reg add low :", addrLo->bitfields.addr); }

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static int dbgdev_address_watch_nodiq(struct kfd_dbgdev *dbgdev, struct dbg_address_watch_info *adw_info) { union TCP_WATCH_ADDR_H_BITS addrHi; union TCP_WATCH_ADDR_L_BITS addrLo; union TCP_WATCH_CNTL_BITS cntl; struct kfd_process_device *pdd; unsigned int i; BUG_ON(!dbgdev || !dbgdev->dev || !adw_info); /* taking the vmid for that process on the safe way using pdd */ pdd = kfd_get_process_device_data(dbgdev->dev, adw_info->process); if (!pdd) { pr_err("amdkfd: Failed to get pdd for wave control no DIQ\n"); return -EFAULT; } addrHi.u32All = 0; addrLo.u32All = 0; cntl.u32All = 0; if ((adw_info->num_watch_points > MAX_WATCH_ADDRESSES) || (adw_info->num_watch_points == 0)) { pr_err("amdkfd: num_watch_points is invalid\n"); return -EINVAL; } if ((adw_info->watch_mode == NULL) || (adw_info->watch_address == NULL)) { pr_err("amdkfd: adw_info fields are not valid\n"); return -EINVAL; } for (i = 0 ; i < adw_info->num_watch_points ; i++) { dbgdev_address_watch_set_registers(adw_info, &addrHi, &addrLo, &cntl, i, pdd->qpd.vmid); pr_debug("\t\t%30s\n", "* * * * * * * * * * * * * * * * * *"); pr_debug("\t\t%20s %08x\n", "register index :", i); pr_debug("\t\t%20s %08x\n", "vmid is :", pdd->qpd.vmid); pr_debug("\t\t%20s %08x\n", "Address Low is :", addrLo.bitfields.addr); pr_debug("\t\t%20s %08x\n", "Address high is :", addrHi.bitfields.addr); pr_debug("\t\t%20s %08x\n", "Address high is :", addrHi.bitfields.addr); pr_debug("\t\t%20s %08x\n", "Control Mask is :", cntl.bitfields.mask); pr_debug("\t\t%20s %08x\n", "Control Mode is :", cntl.bitfields.mode); pr_debug("\t\t%20s %08x\n", "Control Vmid is :", cntl.bitfields.vmid); pr_debug("\t\t%20s %08x\n", "Control atc is :", cntl.bitfields.atc); pr_debug("\t\t%30s\n", "* * * * * * * * * * * * * * * * * *"); pdd->dev->kfd2kgd->address_watch_execute( dbgdev->dev->kgd, i, cntl.u32All, addrHi.u32All, addrLo.u32All); } return 0; }

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static int dbgdev_address_watch_diq(struct kfd_dbgdev *dbgdev, struct dbg_address_watch_info *adw_info) { struct pm4__set_config_reg *packets_vec; union TCP_WATCH_ADDR_H_BITS addrHi; union TCP_WATCH_ADDR_L_BITS addrLo; union TCP_WATCH_CNTL_BITS cntl; struct kfd_mem_obj *mem_obj; unsigned int aw_reg_add_dword; uint32_t *packet_buff_uint; unsigned int i; int status; size_t ib_size = sizeof(struct pm4__set_config_reg) * 4; /* we do not control the vmid in DIQ mode, just a place holder */ unsigned int vmid = 0; BUG_ON(!dbgdev || !dbgdev->dev || !adw_info); addrHi.u32All = 0; addrLo.u32All = 0; cntl.u32All = 0; if ((adw_info->num_watch_points > MAX_WATCH_ADDRESSES) || (adw_info->num_watch_points == 0)) { pr_err("amdkfd: num_watch_points is invalid\n"); return -EINVAL; } if ((NULL == adw_info->watch_mode) || (NULL == adw_info->watch_address)) { pr_err("amdkfd: adw_info fields are not valid\n"); return -EINVAL; } status = kfd_gtt_sa_allocate(dbgdev->dev, ib_size, &mem_obj); if (status != 0) { pr_err("amdkfd: Failed to allocate GART memory\n"); return status; } packet_buff_uint = mem_obj->cpu_ptr; memset(packet_buff_uint, 0, ib_size); packets_vec = (struct pm4__set_config_reg *) (packet_buff_uint); packets_vec[0].header.count = 1; packets_vec[0].header.opcode = IT_SET_CONFIG_REG; packets_vec[0].header.type = PM4_TYPE_3; packets_vec[0].bitfields2.vmid_shift = ADDRESS_WATCH_CNTL_OFFSET; packets_vec[0].bitfields2.insert_vmid = 1; packets_vec[1].ordinal1 = packets_vec[0].ordinal1; packets_vec[1].bitfields2.insert_vmid = 0; packets_vec[2].ordinal1 = packets_vec[0].ordinal1; packets_vec[2].bitfields2.insert_vmid = 0; packets_vec[3].ordinal1 = packets_vec[0].ordinal1; packets_vec[3].bitfields2.vmid_shift = ADDRESS_WATCH_CNTL_OFFSET; packets_vec[3].bitfields2.insert_vmid = 1; for (i = 0; i < adw_info->num_watch_points; i++) { dbgdev_address_watch_set_registers(adw_info, &addrHi, &addrLo, &cntl, i, vmid); pr_debug("\t\t%30s\n", "* * * * * * * * * * * * * * * * * *"); pr_debug("\t\t%20s %08x\n", "register index :", i); pr_debug("\t\t%20s %08x\n", "vmid is :", vmid); pr_debug("\t\t%20s %p\n", "Add ptr is :", adw_info->watch_address); pr_debug("\t\t%20s %08llx\n", "Add is :", adw_info->watch_address[i]); pr_debug("\t\t%20s %08x\n", "Address Low is :", addrLo.bitfields.addr); pr_debug("\t\t%20s %08x\n", "Address high is :", addrHi.bitfields.addr); pr_debug("\t\t%20s %08x\n", "Control Mask is :", cntl.bitfields.mask); pr_debug("\t\t%20s %08x\n", "Control Mode is :", cntl.bitfields.mode); pr_debug("\t\t%20s %08x\n", "Control Vmid is :", cntl.bitfields.vmid); pr_debug("\t\t%20s %08x\n", "Control atc is :", cntl.bitfields.atc); pr_debug("\t\t%30s\n", "* * * * * * * * * * * * * * * * * *"); aw_reg_add_dword = dbgdev->dev->kfd2kgd->address_watch_get_offset( dbgdev->dev->kgd, i, ADDRESS_WATCH_REG_CNTL); aw_reg_add_dword /= sizeof(uint32_t); packets_vec[0].bitfields2.reg_offset = aw_reg_add_dword - AMD_CONFIG_REG_BASE; packets_vec[0].reg_data[0] = cntl.u32All; aw_reg_add_dword = dbgdev->dev->kfd2kgd->address_watch_get_offset( dbgdev->dev->kgd, i, ADDRESS_WATCH_REG_ADDR_HI); aw_reg_add_dword /= sizeof(uint32_t); packets_vec[1].bitfields2.reg_offset = aw_reg_add_dword - AMD_CONFIG_REG_BASE; packets_vec[1].reg_data[0] = addrHi.u32All; aw_reg_add_dword = dbgdev->dev->kfd2kgd->address_watch_get_offset( dbgdev->dev->kgd, i, ADDRESS_WATCH_REG_ADDR_LO); aw_reg_add_dword /= sizeof(uint32_t); packets_vec[2].bitfields2.reg_offset = aw_reg_add_dword - AMD_CONFIG_REG_BASE; packets_vec[2].reg_data[0] = addrLo.u32All; /* enable watch flag if address is not zero*/ if (adw_info->watch_address[i] > 0) cntl.bitfields.valid = 1; else cntl.bitfields.valid = 0; aw_reg_add_dword = dbgdev->dev->kfd2kgd->address_watch_get_offset( dbgdev->dev->kgd, i, ADDRESS_WATCH_REG_CNTL); aw_reg_add_dword /= sizeof(uint32_t); packets_vec[3].bitfields2.reg_offset = aw_reg_add_dword - AMD_CONFIG_REG_BASE; packets_vec[3].reg_data[0] = cntl.u32All; status = dbgdev_diq_submit_ib( dbgdev, adw_info->process->pasid, mem_obj->gpu_addr, packet_buff_uint, ib_size); if (status != 0) { pr_err("amdkfd: Failed to submit IB to DIQ\n"); break; } } kfd_gtt_sa_free(dbgdev->dev, mem_obj); return status; }

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static int dbgdev_wave_control_set_registers( struct dbg_wave_control_info *wac_info, union SQ_CMD_BITS *in_reg_sq_cmd, union GRBM_GFX_INDEX_BITS *in_reg_gfx_index) { int status = 0; union SQ_CMD_BITS reg_sq_cmd; union GRBM_GFX_INDEX_BITS reg_gfx_index; struct HsaDbgWaveMsgAMDGen2 *pMsg; BUG_ON(!wac_info || !in_reg_sq_cmd || !in_reg_gfx_index); reg_sq_cmd.u32All = 0; reg_gfx_index.u32All = 0; pMsg = &wac_info->dbgWave_msg.DbgWaveMsg.WaveMsgInfoGen2; switch (wac_info->mode) { /* Send command to single wave */ case HSA_DBG_WAVEMODE_SINGLE: /* * Limit access to the process waves only, * by setting vmid check */ reg_sq_cmd.bits.check_vmid = 1; reg_sq_cmd.bits.simd_id = pMsg->ui32.SIMD; reg_sq_cmd.bits.wave_id = pMsg->ui32.WaveId; reg_sq_cmd.bits.mode = SQ_IND_CMD_MODE_SINGLE; reg_gfx_index.bits.sh_index = pMsg->ui32.ShaderArray; reg_gfx_index.bits.se_index = pMsg->ui32.ShaderEngine; reg_gfx_index.bits.instance_index = pMsg->ui32.HSACU; break; /* Send command to all waves with matching VMID */ case HSA_DBG_WAVEMODE_BROADCAST_PROCESS: reg_gfx_index.bits.sh_broadcast_writes = 1; reg_gfx_index.bits.se_broadcast_writes = 1; reg_gfx_index.bits.instance_broadcast_writes = 1; reg_sq_cmd.bits.mode = SQ_IND_CMD_MODE_BROADCAST; break; /* Send command to all CU waves with matching VMID */ case HSA_DBG_WAVEMODE_BROADCAST_PROCESS_CU: reg_sq_cmd.bits.check_vmid = 1; reg_sq_cmd.bits.mode = SQ_IND_CMD_MODE_BROADCAST; reg_gfx_index.bits.sh_index = pMsg->ui32.ShaderArray; reg_gfx_index.bits.se_index = pMsg->ui32.ShaderEngine; reg_gfx_index.bits.instance_index = pMsg->ui32.HSACU; break; default: return -EINVAL; } switch (wac_info->operand) { case HSA_DBG_WAVEOP_HALT: reg_sq_cmd.bits.cmd = SQ_IND_CMD_CMD_HALT; break; case HSA_DBG_WAVEOP_RESUME: reg_sq_cmd.bits.cmd = SQ_IND_CMD_CMD_RESUME; break; case HSA_DBG_WAVEOP_KILL: reg_sq_cmd.bits.cmd = SQ_IND_CMD_CMD_KILL; break; case HSA_DBG_WAVEOP_DEBUG: reg_sq_cmd.bits.cmd = SQ_IND_CMD_CMD_DEBUG; break; case HSA_DBG_WAVEOP_TRAP: if (wac_info->trapId < MAX_TRAPID) { reg_sq_cmd.bits.cmd = SQ_IND_CMD_CMD_TRAP; reg_sq_cmd.bits.trap_id = wac_info->trapId; } else { status = -EINVAL; } break; default: status = -EINVAL; break; } if (status == 0) { *in_reg_sq_cmd = reg_sq_cmd; *in_reg_gfx_index = reg_gfx_index; } return status; }

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static int dbgdev_wave_control_diq(struct kfd_dbgdev *dbgdev, struct dbg_wave_control_info *wac_info) { int status; union SQ_CMD_BITS reg_sq_cmd; union GRBM_GFX_INDEX_BITS reg_gfx_index; struct kfd_mem_obj *mem_obj; uint32_t *packet_buff_uint; struct pm4__set_config_reg *packets_vec; size_t ib_size = sizeof(struct pm4__set_config_reg) * 3; BUG_ON(!dbgdev || !wac_info); reg_sq_cmd.u32All = 0; status = dbgdev_wave_control_set_registers(wac_info, &reg_sq_cmd, &reg_gfx_index); if (status) { pr_err("amdkfd: Failed to set wave control registers\n"); return status; } /* we do not control the VMID in DIQ,so reset it to a known value */ reg_sq_cmd.bits.vm_id = 0; pr_debug("\t\t %30s\n", "* * * * * * * * * * * * * * * * * *"); pr_debug("\t\t mode is: %u\n", wac_info->mode); pr_debug("\t\t operand is: %u\n", wac_info->operand); pr_debug("\t\t trap id is: %u\n", wac_info->trapId); pr_debug("\t\t msg value is: %u\n", wac_info->dbgWave_msg.DbgWaveMsg.WaveMsgInfoGen2.Value); pr_debug("\t\t vmid is: N/A\n"); pr_debug("\t\t chk_vmid is : %u\n", reg_sq_cmd.bitfields.check_vmid); pr_debug("\t\t command is : %u\n", reg_sq_cmd.bitfields.cmd); pr_debug("\t\t queue id is : %u\n", reg_sq_cmd.bitfields.queue_id); pr_debug("\t\t simd id is : %u\n", reg_sq_cmd.bitfields.simd_id); pr_debug("\t\t mode is : %u\n", reg_sq_cmd.bitfields.mode); pr_debug("\t\t vm_id is : %u\n", reg_sq_cmd.bitfields.vm_id); pr_debug("\t\t wave_id is : %u\n", reg_sq_cmd.bitfields.wave_id); pr_debug("\t\t ibw is : %u\n", reg_gfx_index.bitfields.instance_broadcast_writes); pr_debug("\t\t ii is : %u\n", reg_gfx_index.bitfields.instance_index); pr_debug("\t\t sebw is : %u\n", reg_gfx_index.bitfields.se_broadcast_writes); pr_debug("\t\t se_ind is : %u\n", reg_gfx_index.bitfields.se_index); pr_debug("\t\t sh_ind is : %u\n", reg_gfx_index.bitfields.sh_index); pr_debug("\t\t sbw is : %u\n", reg_gfx_index.bitfields.sh_broadcast_writes); pr_debug("\t\t %30s\n", "* * * * * * * * * * * * * * * * * *"); status = kfd_gtt_sa_allocate(dbgdev->dev, ib_size, &mem_obj); if (status != 0) { pr_err("amdkfd: Failed to allocate GART memory\n"); return status; } packet_buff_uint = mem_obj->cpu_ptr; memset(packet_buff_uint, 0, ib_size); packets_vec = (struct pm4__set_config_reg *) packet_buff_uint; packets_vec[0].header.count = 1; packets_vec[0].header.opcode = IT_SET_UCONFIG_REG; packets_vec[0].header.type = PM4_TYPE_3; packets_vec[0].bitfields2.reg_offset = GRBM_GFX_INDEX / (sizeof(uint32_t)) - USERCONFIG_REG_BASE; packets_vec[0].bitfields2.insert_vmid = 0; packets_vec[0].reg_data[0] = reg_gfx_index.u32All; packets_vec[1].header.count = 1; packets_vec[1].header.opcode = IT_SET_CONFIG_REG; packets_vec[1].header.type = PM4_TYPE_3; packets_vec[1].bitfields2.reg_offset = SQ_CMD / (sizeof(uint32_t)) - AMD_CONFIG_REG_BASE; packets_vec[1].bitfields2.vmid_shift = SQ_CMD_VMID_OFFSET; packets_vec[1].bitfields2.insert_vmid = 1; packets_vec[1].reg_data[0] = reg_sq_cmd.u32All; /* Restore the GRBM_GFX_INDEX register */ reg_gfx_index.u32All = 0; reg_gfx_index.bits.sh_broadcast_writes = 1; reg_gfx_index.bits.instance_broadcast_writes = 1; reg_gfx_index.bits.se_broadcast_writes = 1; packets_vec[2].ordinal1 = packets_vec[0].ordinal1; packets_vec[2].bitfields2.reg_offset = GRBM_GFX_INDEX / (sizeof(uint32_t)) - USERCONFIG_REG_BASE; packets_vec[2].bitfields2.insert_vmid = 0; packets_vec[2].reg_data[0] = reg_gfx_index.u32All; status = dbgdev_diq_submit_ib( dbgdev, wac_info->process->pasid, mem_obj->gpu_addr, packet_buff_uint, ib_size); if (status != 0) pr_err("amdkfd: Failed to submit IB to DIQ\n"); kfd_gtt_sa_free(dbgdev->dev, mem_obj); return status; }

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PersonTokensPropCommitsCommitProp
Yair Shachar66199.85%266.67%
Valentin Rothberg10.15%133.33%
Total662100.00%3100.00%


static int dbgdev_wave_control_nodiq(struct kfd_dbgdev *dbgdev, struct dbg_wave_control_info *wac_info) { int status; union SQ_CMD_BITS reg_sq_cmd; union GRBM_GFX_INDEX_BITS reg_gfx_index; struct kfd_process_device *pdd; BUG_ON(!dbgdev || !dbgdev->dev || !wac_info); reg_sq_cmd.u32All = 0; /* taking the VMID for that process on the safe way using PDD */ pdd = kfd_get_process_device_data(dbgdev->dev, wac_info->process); if (!pdd) { pr_err("amdkfd: Failed to get pdd for wave control no DIQ\n"); return -EFAULT; } status = dbgdev_wave_control_set_registers(wac_info, &reg_sq_cmd, &reg_gfx_index); if (status) { pr_err("amdkfd: Failed to set wave control registers\n"); return status; } /* for non DIQ we need to patch the VMID: */ reg_sq_cmd.bits.vm_id = pdd->qpd.vmid; pr_debug("\t\t %30s\n", "* * * * * * * * * * * * * * * * * *"); pr_debug("\t\t mode is: %u\n", wac_info->mode); pr_debug("\t\t operand is: %u\n", wac_info->operand); pr_debug("\t\t trap id is: %u\n", wac_info->trapId); pr_debug("\t\t msg value is: %u\n", wac_info->dbgWave_msg.DbgWaveMsg.WaveMsgInfoGen2.Value); pr_debug("\t\t vmid is: %u\n", pdd->qpd.vmid); pr_debug("\t\t chk_vmid is : %u\n", reg_sq_cmd.bitfields.check_vmid); pr_debug("\t\t command is : %u\n", reg_sq_cmd.bitfields.cmd); pr_debug("\t\t queue id is : %u\n", reg_sq_cmd.bitfields.queue_id); pr_debug("\t\t simd id is : %u\n", reg_sq_cmd.bitfields.simd_id); pr_debug("\t\t mode is : %u\n", reg_sq_cmd.bitfields.mode); pr_debug("\t\t vm_id is : %u\n", reg_sq_cmd.bitfields.vm_id); pr_debug("\t\t wave_id is : %u\n", reg_sq_cmd.bitfields.wave_id); pr_debug("\t\t ibw is : %u\n", reg_gfx_index.bitfields.instance_broadcast_writes); pr_debug("\t\t ii is : %u\n", reg_gfx_index.bitfields.instance_index); pr_debug("\t\t sebw is : %u\n", reg_gfx_index.bitfields.se_broadcast_writes); pr_debug("\t\t se_ind is : %u\n", reg_gfx_index.bitfields.se_index); pr_debug("\t\t sh_ind is : %u\n", reg_gfx_index.bitfields.sh_index); pr_debug("\t\t sbw is : %u\n", reg_gfx_index.bitfields.sh_broadcast_writes); pr_debug("\t\t %30s\n", "* * * * * * * * * * * * * * * * * *"); return dbgdev->dev->kfd2kgd->wave_control_execute(dbgdev->dev->kgd, reg_gfx_index.u32All, reg_sq_cmd.u32All); }

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PersonTokensPropCommitsCommitProp
Yair Shachar356100.00%2100.00%
Total356100.00%2100.00%


int dbgdev_wave_reset_wavefronts(struct kfd_dev *dev, struct kfd_process *p) { int status = 0; unsigned int vmid; union SQ_CMD_BITS reg_sq_cmd; union GRBM_GFX_INDEX_BITS reg_gfx_index; struct kfd_process_device *pdd; struct dbg_wave_control_info wac_info; int temp; int first_vmid_to_scan = 8; int last_vmid_to_scan = 15; first_vmid_to_scan = ffs(dev->shared_resources.compute_vmid_bitmap) - 1; temp = dev->shared_resources.compute_vmid_bitmap >> first_vmid_to_scan; last_vmid_to_scan = first_vmid_to_scan + ffz(temp); reg_sq_cmd.u32All = 0; status = 0; wac_info.mode = HSA_DBG_WAVEMODE_BROADCAST_PROCESS; wac_info.operand = HSA_DBG_WAVEOP_KILL; pr_debug("Killing all process wavefronts\n"); /* Scan all registers in the range ATC_VMID8_PASID_MAPPING .. * ATC_VMID15_PASID_MAPPING * to check which VMID the current process is mapped to. */ for (vmid = first_vmid_to_scan; vmid <= last_vmid_to_scan; vmid++) { if (dev->kfd2kgd->get_atc_vmid_pasid_mapping_valid (dev->kgd, vmid)) { if (dev->kfd2kgd->get_atc_vmid_pasid_mapping_valid (dev->kgd, vmid) == p->pasid) { pr_debug("Killing wave fronts of vmid %d and pasid %d\n", vmid, p->pasid); break; } } } if (vmid > last_vmid_to_scan) { pr_err("amdkfd: didn't found vmid for pasid (%d)\n", p->pasid); return -EFAULT; } /* taking the VMID for that process on the safe way using PDD */ pdd = kfd_get_process_device_data(dev, p); if (!pdd) return -EFAULT; status = dbgdev_wave_control_set_registers(&wac_info, &reg_sq_cmd, &reg_gfx_index); if (status != 0) return -EINVAL; /* for non DIQ we need to patch the VMID: */ reg_sq_cmd.bits.vm_id = vmid; dev->kfd2kgd->wave_control_execute(dev->kgd, reg_gfx_index.u32All, reg_sq_cmd.u32All); return 0; }

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PersonTokensPropCommitsCommitProp
Ben Goz274100.00%1100.00%
Total274100.00%1100.00%


void kfd_dbgdev_init(struct kfd_dbgdev *pdbgdev, struct kfd_dev *pdev, enum DBGDEV_TYPE type) { BUG_ON(!pdbgdev || !pdev); pdbgdev->dev = pdev; pdbgdev->kq = NULL; pdbgdev->type = type; pdbgdev->pqm = NULL; switch (type) { case DBGDEV_TYPE_NODIQ: pdbgdev->dbgdev_register = dbgdev_register_nodiq; pdbgdev->dbgdev_unregister = dbgdev_unregister_nodiq; pdbgdev->dbgdev_wave_control = dbgdev_wave_control_nodiq; pdbgdev->dbgdev_address_watch = dbgdev_address_watch_nodiq; break; case DBGDEV_TYPE_DIQ: default: pdbgdev->dbgdev_register = dbgdev_register_diq; pdbgdev->dbgdev_unregister = dbgdev_unregister_diq; pdbgdev->dbgdev_wave_control = dbgdev_wave_control_diq; pdbgdev->dbgdev_address_watch = dbgdev_address_watch_diq; break; } }

Contributors

PersonTokensPropCommitsCommitProp
Yair Shachar115100.00%3100.00%
Total115100.00%3100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Yair Shachar378493.09%350.00%
Ben Goz2746.74%116.67%
Valentin Rothberg50.12%116.67%
Dan Carpenter20.05%116.67%
Total4065100.00%6100.00%
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