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/*
* Copyright 2023 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 "amdgpu.h"
#include "amdgpu_amdkfd.h"
#include "gc/gc_12_0_0_offset.h"
#include "gc/gc_12_0_0_sh_mask.h"
#include "soc24.h"
#include <uapi/linux/kfd_ioctl.h>
static void lock_srbm(struct amdgpu_device *adev, uint32_t mec, uint32_t pipe,
uint32_t queue, uint32_t vmid)
{
mutex_lock(&adev->srbm_mutex);
soc24_grbm_select(adev, mec, pipe, queue, vmid);
}
static void unlock_srbm(struct amdgpu_device *adev)
{
soc24_grbm_select(adev, 0, 0, 0, 0);
mutex_unlock(&adev->srbm_mutex);
}
static void acquire_queue(struct amdgpu_device *adev, uint32_t pipe_id,
uint32_t queue_id)
{
uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
lock_srbm(adev, mec, pipe, queue_id, 0);
}
static void release_queue(struct amdgpu_device *adev)
{
unlock_srbm(adev);
}
static int init_interrupts_v12(struct amdgpu_device *adev, uint32_t pipe_id, uint32_t inst)
{
uint32_t mec;
uint32_t pipe;
mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
lock_srbm(adev, mec, pipe, 0, 0);
WREG32_SOC15(GC, 0, regCPC_INT_CNTL,
CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK |
CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK);
unlock_srbm(adev);
return 0;
}
static uint32_t get_sdma_rlc_reg_offset(struct amdgpu_device *adev,
unsigned int engine_id,
unsigned int queue_id)
{
uint32_t sdma_engine_reg_base = 0;
uint32_t sdma_rlc_reg_offset;
switch (engine_id) {
case 0:
sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA0, 0,
regSDMA0_QUEUE0_RB_CNTL) - regSDMA0_QUEUE0_RB_CNTL;
break;
case 1:
sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA1, 0,
regSDMA1_QUEUE0_RB_CNTL) - regSDMA0_QUEUE0_RB_CNTL;
break;
default:
BUG();
}
sdma_rlc_reg_offset = sdma_engine_reg_base
+ queue_id * (regSDMA0_QUEUE1_RB_CNTL - regSDMA0_QUEUE0_RB_CNTL);
pr_debug("RLC register offset for SDMA%d RLC%d: 0x%x\n", engine_id,
queue_id, sdma_rlc_reg_offset);
return sdma_rlc_reg_offset;
}
static int hqd_dump_v12(struct amdgpu_device *adev,
uint32_t pipe_id, uint32_t queue_id,
uint32_t (**dump)[2], uint32_t *n_regs, uint32_t inst)
{
uint32_t i = 0, reg;
#define HQD_N_REGS 56
#define DUMP_REG(addr) do { \
if (WARN_ON_ONCE(i >= HQD_N_REGS)) \
break; \
(*dump)[i][0] = (addr) << 2; \
(*dump)[i++][1] = RREG32(addr); \
} while (0)
*dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL);
if (*dump == NULL)
return -ENOMEM;
acquire_queue(adev, pipe_id, queue_id);
for (reg = SOC15_REG_OFFSET(GC, 0, regCP_MQD_BASE_ADDR);
reg <= SOC15_REG_OFFSET(GC, 0, regCP_HQD_PQ_WPTR_HI); reg++)
DUMP_REG(reg);
release_queue(adev);
WARN_ON_ONCE(i != HQD_N_REGS);
*n_regs = i;
return 0;
}
static int hqd_sdma_dump_v12(struct amdgpu_device *adev,
uint32_t engine_id, uint32_t queue_id,
uint32_t (**dump)[2], uint32_t *n_regs)
{
uint32_t sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev,
engine_id, queue_id);
uint32_t i = 0, reg;
const uint32_t first_reg = regSDMA0_QUEUE0_RB_CNTL;
const uint32_t last_reg = regSDMA0_QUEUE0_CONTEXT_STATUS;
#undef HQD_N_REGS
#define HQD_N_REGS (last_reg - first_reg + 1)
*dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL);
if (*dump == NULL)
return -ENOMEM;
for (reg = first_reg;
reg <= last_reg; reg++)
DUMP_REG(sdma_rlc_reg_offset + reg);
WARN_ON_ONCE(i != HQD_N_REGS);
*n_regs = i;
return 0;
}
static int wave_control_execute_v12(struct amdgpu_device *adev,
uint32_t gfx_index_val,
uint32_t sq_cmd, uint32_t inst)
{
uint32_t data = 0;
mutex_lock(&adev->grbm_idx_mutex);
WREG32(SOC15_REG_OFFSET(GC, 0, regGRBM_GFX_INDEX), gfx_index_val);
WREG32(SOC15_REG_OFFSET(GC, 0, regSQ_CMD), sq_cmd);
data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
INSTANCE_BROADCAST_WRITES, 1);
data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
SA_BROADCAST_WRITES, 1);
data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
SE_BROADCAST_WRITES, 1);
WREG32(SOC15_REG_OFFSET(GC, 0, regGRBM_GFX_INDEX), data);
mutex_unlock(&adev->grbm_idx_mutex);
return 0;
}
/* returns TRAP_EN, EXCP_EN and EXCP_REPLACE. */
static uint32_t kgd_gfx_v12_enable_debug_trap(struct amdgpu_device *adev,
bool restore_dbg_registers,
uint32_t vmid)
{
uint32_t data = 0;
data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, TRAP_EN, 1);
data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_EN, 0);
data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_REPLACE, 0);
return data;
}
/* returns TRAP_EN, EXCP_EN and EXCP_REPLACE. */
static uint32_t kgd_gfx_v12_disable_debug_trap(struct amdgpu_device *adev,
bool keep_trap_enabled,
uint32_t vmid)
{
uint32_t data = 0;
data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, TRAP_EN, 1);
data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_EN, 0);
data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_REPLACE, 0);
return data;
}
static int kgd_gfx_v12_validate_trap_override_request(struct amdgpu_device *adev,
uint32_t trap_override,
uint32_t *trap_mask_supported)
{
*trap_mask_supported &= KFD_DBG_TRAP_MASK_FP_INVALID |
KFD_DBG_TRAP_MASK_FP_INPUT_DENORMAL |
KFD_DBG_TRAP_MASK_FP_DIVIDE_BY_ZERO |
KFD_DBG_TRAP_MASK_FP_OVERFLOW |
KFD_DBG_TRAP_MASK_FP_UNDERFLOW |
KFD_DBG_TRAP_MASK_FP_INEXACT |
KFD_DBG_TRAP_MASK_INT_DIVIDE_BY_ZERO |
KFD_DBG_TRAP_MASK_DBG_ADDRESS_WATCH |
KFD_DBG_TRAP_MASK_DBG_MEMORY_VIOLATION |
KFD_DBG_TRAP_MASK_TRAP_ON_WAVE_START |
KFD_DBG_TRAP_MASK_TRAP_ON_WAVE_END;
if (trap_override != KFD_DBG_TRAP_OVERRIDE_OR &&
trap_override != KFD_DBG_TRAP_OVERRIDE_REPLACE)
return -EPERM;
return 0;
}
static uint32_t trap_mask_map_sw_to_hw(uint32_t mask)
{
uint32_t trap_on_start = (mask & KFD_DBG_TRAP_MASK_TRAP_ON_WAVE_START) ? 1 : 0;
uint32_t trap_on_end = (mask & KFD_DBG_TRAP_MASK_TRAP_ON_WAVE_END) ? 1 : 0;
uint32_t excp_en = mask & (KFD_DBG_TRAP_MASK_FP_INVALID |
KFD_DBG_TRAP_MASK_FP_INPUT_DENORMAL |
KFD_DBG_TRAP_MASK_FP_DIVIDE_BY_ZERO |
KFD_DBG_TRAP_MASK_FP_OVERFLOW |
KFD_DBG_TRAP_MASK_FP_UNDERFLOW |
KFD_DBG_TRAP_MASK_FP_INEXACT |
KFD_DBG_TRAP_MASK_INT_DIVIDE_BY_ZERO |
KFD_DBG_TRAP_MASK_DBG_ADDRESS_WATCH |
KFD_DBG_TRAP_MASK_DBG_MEMORY_VIOLATION);
uint32_t ret;
ret = REG_SET_FIELD(0, SPI_GDBG_PER_VMID_CNTL, EXCP_EN, excp_en);
ret = REG_SET_FIELD(ret, SPI_GDBG_PER_VMID_CNTL, TRAP_ON_START, trap_on_start);
ret = REG_SET_FIELD(ret, SPI_GDBG_PER_VMID_CNTL, TRAP_ON_END, trap_on_end);
return ret;
}
static uint32_t trap_mask_map_hw_to_sw(uint32_t mask)
{
uint32_t ret = REG_GET_FIELD(mask, SPI_GDBG_PER_VMID_CNTL, EXCP_EN);
if (REG_GET_FIELD(mask, SPI_GDBG_PER_VMID_CNTL, TRAP_ON_START))
ret |= KFD_DBG_TRAP_MASK_TRAP_ON_WAVE_START;
if (REG_GET_FIELD(mask, SPI_GDBG_PER_VMID_CNTL, TRAP_ON_END))
ret |= KFD_DBG_TRAP_MASK_TRAP_ON_WAVE_END;
return ret;
}
/* returns TRAP_EN, EXCP_EN and EXCP_REPLACE. */
static uint32_t kgd_gfx_v12_set_wave_launch_trap_override(struct amdgpu_device *adev,
uint32_t vmid,
uint32_t trap_override,
uint32_t trap_mask_bits,
uint32_t trap_mask_request,
uint32_t *trap_mask_prev,
uint32_t kfd_dbg_trap_cntl_prev)
{
uint32_t data = 0;
*trap_mask_prev = trap_mask_map_hw_to_sw(kfd_dbg_trap_cntl_prev);
data = (trap_mask_bits & trap_mask_request) | (*trap_mask_prev & ~trap_mask_request);
data = trap_mask_map_sw_to_hw(data);
data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, TRAP_EN, 1);
data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_REPLACE, trap_override);
return data;
}
/* returns STALL_VMID or LAUNCH_MODE. */
static uint32_t kgd_gfx_v12_set_wave_launch_mode(struct amdgpu_device *adev,
uint8_t wave_launch_mode,
uint32_t vmid)
{
uint32_t data = 0;
bool is_stall_mode = wave_launch_mode == 4;
if (is_stall_mode)
data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, STALL_VMID,
1);
else
data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, LAUNCH_MODE,
wave_launch_mode);
return data;
}
#define TCP_WATCH_STRIDE (regTCP_WATCH1_ADDR_H - regTCP_WATCH0_ADDR_H)
static uint32_t kgd_gfx_v12_set_address_watch(struct amdgpu_device *adev,
uint64_t watch_address,
uint32_t watch_address_mask,
uint32_t watch_id,
uint32_t watch_mode,
uint32_t debug_vmid,
uint32_t inst)
{
uint32_t watch_address_high;
uint32_t watch_address_low;
uint32_t watch_address_cntl;
watch_address_cntl = 0;
watch_address_low = lower_32_bits(watch_address);
watch_address_high = upper_32_bits(watch_address) & 0xffff;
watch_address_cntl = REG_SET_FIELD(watch_address_cntl,
TCP_WATCH0_CNTL,
MODE,
watch_mode);
watch_address_cntl = REG_SET_FIELD(watch_address_cntl,
TCP_WATCH0_CNTL,
MASK,
watch_address_mask >> 7);
watch_address_cntl = REG_SET_FIELD(watch_address_cntl,
TCP_WATCH0_CNTL,
VALID,
1);
WREG32_RLC((SOC15_REG_OFFSET(GC, 0, regTCP_WATCH0_ADDR_H) +
(watch_id * TCP_WATCH_STRIDE)),
watch_address_high);
WREG32_RLC((SOC15_REG_OFFSET(GC, 0, regTCP_WATCH0_ADDR_L) +
(watch_id * TCP_WATCH_STRIDE)),
watch_address_low);
return watch_address_cntl;
}
static uint32_t kgd_gfx_v12_clear_address_watch(struct amdgpu_device *adev,
uint32_t watch_id)
{
return 0;
}
const struct kfd2kgd_calls gfx_v12_kfd2kgd = {
.init_interrupts = init_interrupts_v12,
.hqd_dump = hqd_dump_v12,
.hqd_sdma_dump = hqd_sdma_dump_v12,
.wave_control_execute = wave_control_execute_v12,
.get_atc_vmid_pasid_mapping_info = NULL,
.enable_debug_trap = kgd_gfx_v12_enable_debug_trap,
.disable_debug_trap = kgd_gfx_v12_disable_debug_trap,
.validate_trap_override_request = kgd_gfx_v12_validate_trap_override_request,
.set_wave_launch_trap_override = kgd_gfx_v12_set_wave_launch_trap_override,
.set_wave_launch_mode = kgd_gfx_v12_set_wave_launch_mode,
.set_address_watch = kgd_gfx_v12_set_address_watch,
.clear_address_watch = kgd_gfx_v12_clear_address_watch,
};
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