[PATCH v5 2/6] drm/amdgpu: add support of gfx10 register dump
Khatri, Sunil
sukhatri at amd.com
Wed Apr 17 16:11:59 UTC 2024
On 4/17/2024 9:31 PM, Lazar, Lijo wrote:
>
> On 4/17/2024 9:21 PM, Alex Deucher wrote:
>> On Wed, Apr 17, 2024 at 5:38 AM Sunil Khatri <sunil.khatri at amd.com> wrote:
>>> Adding gfx10 gc registers to be used for register
>>> dump via devcoredump during a gpu reset.
>>>
>>> Signed-off-by: Sunil Khatri <sunil.khatri at amd.com>
>> Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
>>
>>> ---
>>> drivers/gpu/drm/amd/amdgpu/amdgpu.h | 8 ++
>>> drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h | 4 +
>>> drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 130 +++++++++++++++++-
>>> drivers/gpu/drm/amd/amdgpu/soc15.h | 2 +
>>> .../include/asic_reg/gc/gc_10_1_0_offset.h | 12 ++
>>> 5 files changed, 155 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
>>> index e0d7f4ee7e16..cac0ca64367b 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
>>> @@ -139,6 +139,14 @@ enum amdgpu_ss {
>>> AMDGPU_SS_DRV_UNLOAD
>>> };
>>>
>>> +struct amdgpu_hwip_reg_entry {
>>> + u32 hwip;
>>> + u32 inst;
>>> + u32 seg;
>>> + u32 reg_offset;
>>> + const char *reg_name;
>>> +};
>>> +
>>> struct amdgpu_watchdog_timer {
>>> bool timeout_fatal_disable;
>>> uint32_t period; /* maxCycles = (1 << period), the number of cycles before a timeout */
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
>>> index 04a86dff71e6..64f197bbc866 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
>>> @@ -433,6 +433,10 @@ struct amdgpu_gfx {
>>> uint32_t num_xcc_per_xcp;
>>> struct mutex partition_mutex;
>>> bool mcbp; /* mid command buffer preemption */
>>> +
>>> + /* IP reg dump */
>>> + uint32_t *ip_dump;
>>> + uint32_t reg_count;
>>> };
>>>
>>> struct amdgpu_gfx_ras_reg_entry {
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>>> index a0bc4196ff8b..4a54161f4837 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>>> @@ -276,6 +276,99 @@ MODULE_FIRMWARE("amdgpu/gc_10_3_7_mec.bin");
>>> MODULE_FIRMWARE("amdgpu/gc_10_3_7_mec2.bin");
>>> MODULE_FIRMWARE("amdgpu/gc_10_3_7_rlc.bin");
>>>
>>> +static const struct amdgpu_hwip_reg_entry gc_reg_list_10_1[] = {
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmGRBM_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmGRBM_STATUS2),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmGRBM_STATUS3),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_STALLED_STAT1),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_STALLED_STAT2),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CPC_STALLED_STAT1),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CPF_STALLED_STAT1),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_BUSY_STAT),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CPC_BUSY_STAT),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CPF_BUSY_STAT),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CPC_BUSY_STAT2),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CPF_BUSY_STAT2),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CPF_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_GFX_ERROR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_GFX_HPD_STATUS0),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_RB_BASE),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_RB_RPTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_RB_WPTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_RB0_BASE),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_RB0_RPTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_RB0_WPTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_RB1_BASE),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_RB1_RPTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_RB1_WPTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_RB2_BASE),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_RB2_WPTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_RB2_WPTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CE_IB1_CMD_BUFSZ),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CE_IB2_CMD_BUFSZ),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_IB1_CMD_BUFSZ),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_IB2_CMD_BUFSZ),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CE_IB1_BASE_LO),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CE_IB1_BASE_HI),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CE_IB1_BUFSZ),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CE_IB2_BASE_LO),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CE_IB2_BASE_HI),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CE_IB2_BUFSZ),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_IB1_BASE_LO),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_IB1_BASE_HI),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_IB1_BUFSZ),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_IB2_BASE_LO),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_IB2_BASE_HI),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_IB2_BUFSZ),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCPF_UTCL1_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCPC_UTCL1_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCPG_UTCL1_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmGDS_PROTECTION_FAULT),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmGDS_VM_PROTECTION_FAULT),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmIA_UTCL1_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmIA_UTCL1_STATUS_2),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmPA_CL_CNTL_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_UTCL1_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRMI_UTCL1_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmSQC_DCACHE_UTCL0_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmSQC_ICACHE_UTCL0_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmSQG_UTCL0_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmTCP_UTCL0_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmWD_UTCL1_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmGCVM_L2_PROTECTION_FAULT_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_DEBUG),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_MEC_CNTL),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_MES_CNTL),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CE_INSTR_PNTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_MEC1_INSTR_PNTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_MEC2_INSTR_PNTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_MES_DEBUG_INTERRUPT_INSTR_PNTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_MES_INSTR_PNTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_ME_INSTR_PNTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_PFP_INSTR_PNTR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmCP_CPC_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_STAT),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_SMU_COMMAND),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_SMU_MESSAGE),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_SMU_ARGUMENT_1),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_SMU_ARGUMENT_2),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_SMU_ARGUMENT_3),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_SMU_ARGUMENT_4),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmSMU_RLC_RESPONSE),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_SAFE_MODE),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_SMU_SAFE_MODE),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_RLCS_GPM_STAT_2),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_SPP_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_RLCS_BOOTLOAD_STATUS),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_INT_STAT),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_GPM_GENERAL_6),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_GPM_DEBUG_INST_A),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_GPM_DEBUG_INST_B),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_GPM_DEBUG_INST_ADDR),
>>> + SOC15_REG_ENTRY_STR(GC, 0, mmRLC_LX6_CORE_PDEBUG_INST)
>>> +};
>>> +
>>> static const struct soc15_reg_golden golden_settings_gc_10_1[] = {
>>> SOC15_REG_GOLDEN_VALUE(GC, 0, mmCB_HW_CONTROL_4, 0xffffffff, 0x00400014),
>>> SOC15_REG_GOLDEN_VALUE(GC, 0, mmCGTT_CPF_CLK_CTRL, 0xfcff8fff, 0xf8000100),
>>> @@ -4490,6 +4583,22 @@ static int gfx_v10_0_compute_ring_init(struct amdgpu_device *adev, int ring_id,
>>> hw_prio, NULL);
>>> }
>>>
>>> +static void gfx_v10_0_alloc_dump_mem(struct amdgpu_device *adev)
>>> +{
>>> + uint32_t reg_count = ARRAY_SIZE(gc_reg_list_10_1);
>>> + uint32_t *ptr;
>>> +
>>> + ptr = kcalloc(reg_count, sizeof(uint32_t), GFP_KERNEL);
>>> + if (ptr == NULL) {
>>> + DRM_ERROR("Failed to allocate memory for IP Dump\n");
>>> + adev->gfx.ip_dump = NULL;
>>> + adev->gfx.reg_count = 0;
>>> + } else {
>>> + adev->gfx.ip_dump = ptr;
>>> + adev->gfx.reg_count = reg_count;
>>> + }
>>> +}
>>> +
>>> static int gfx_v10_0_sw_init(void *handle)
>>> {
>>> int i, j, k, r, ring_id = 0;
>>> @@ -4642,6 +4751,8 @@ static int gfx_v10_0_sw_init(void *handle)
>>>
>>> gfx_v10_0_gpu_early_init(adev);
>>>
>>> + gfx_v10_0_alloc_dump_mem(adev);
>>> +
>>> return 0;
>>> }
>>>
>>> @@ -4694,6 +4805,8 @@ static int gfx_v10_0_sw_fini(void *handle)
>>>
>>> gfx_v10_0_free_microcode(adev);
>>>
>>> + kfree(adev->gfx.ip_dump);
>>> +
>>> return 0;
>>> }
>>>
>>> @@ -9154,6 +9267,21 @@ static void gfx_v10_0_emit_mem_sync(struct amdgpu_ring *ring)
>>> amdgpu_ring_write(ring, gcr_cntl); /* GCR_CNTL */
>>> }
>>>
>>> +static void gfx_v10_ip_dump(void *handle)
>>> +{
>>> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>>> + uint32_t i;
>>> + uint32_t reg_count = ARRAY_SIZE(gc_reg_list_10_1);
>>> +
>>> + if (!adev->gfx.ip_dump)
>>> + return;
>>> +
>>> + amdgpu_gfx_off_ctrl(adev, false);
>>> + for (i = 0; i < reg_count; i++)
>>> + adev->gfx.ip_dump[i] = RREG32(SOC15_REG_ENTRY_OFFSET(gc_reg_list_10_1[i]));
> This may cause a bigger hang, if PMFW is already hung (in that case
> reset also won't work, but a dump is still useful). To be on the safer
> side, there should be some sort of return value for gfx_off which should
> be checked.
amdgpu_gfx_off_ctrl doesnt return any value to confirm if it worked or not else would have checked return value.
I guess assumption is that it will work until there is a bigger hang as you mentioned and i guess in that case nothing will work and needs a reset only.
Regards
Sunil Khatri
>
> Thanks,
> Lijo
>
>>> + amdgpu_gfx_off_ctrl(adev, true);
>>> +}
>>> +
>>> static const struct amd_ip_funcs gfx_v10_0_ip_funcs = {
>>> .name = "gfx_v10_0",
>>> .early_init = gfx_v10_0_early_init,
>>> @@ -9170,7 +9298,7 @@ static const struct amd_ip_funcs gfx_v10_0_ip_funcs = {
>>> .set_clockgating_state = gfx_v10_0_set_clockgating_state,
>>> .set_powergating_state = gfx_v10_0_set_powergating_state,
>>> .get_clockgating_state = gfx_v10_0_get_clockgating_state,
>>> - .dump_ip_state = NULL,
>>> + .dump_ip_state = gfx_v10_ip_dump,
>>> };
>>>
>>> static const struct amdgpu_ring_funcs gfx_v10_0_ring_funcs_gfx = {
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.h b/drivers/gpu/drm/amd/amdgpu/soc15.h
>>> index 1444b7765e4b..282584a48be0 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/soc15.h
>>> +++ b/drivers/gpu/drm/amd/amdgpu/soc15.h
>>> @@ -88,6 +88,8 @@ struct soc15_ras_field_entry {
>>> };
>>>
>>> #define SOC15_REG_ENTRY(ip, inst, reg) ip##_HWIP, inst, reg##_BASE_IDX, reg
>>> +#define SOC15_REG_ENTRY_STR(ip, inst, reg) \
>>> + { ip##_HWIP, inst, reg##_BASE_IDX, reg, #reg }
>>>
>>> #define SOC15_REG_ENTRY_OFFSET(entry) (adev->reg_offset[entry.hwip][entry.inst][entry.seg] + entry.reg_offset)
>>>
>>> diff --git a/drivers/gpu/drm/amd/include/asic_reg/gc/gc_10_1_0_offset.h b/drivers/gpu/drm/amd/include/asic_reg/gc/gc_10_1_0_offset.h
>>> index 4908044f7409..4c8e7fdb6976 100644
>>> --- a/drivers/gpu/drm/amd/include/asic_reg/gc/gc_10_1_0_offset.h
>>> +++ b/drivers/gpu/drm/amd/include/asic_reg/gc/gc_10_1_0_offset.h
>>> @@ -4830,6 +4830,8 @@
>>> #define mmCP_ECC_FIRSTOCCURRENCE_RING2_BASE_IDX 0
>>> #define mmGB_EDC_MODE 0x1e1e
>>> #define mmGB_EDC_MODE_BASE_IDX 0
>>> +#define mmCP_DEBUG 0x1e1f
>>> +#define mmCP_DEBUG_BASE_IDX 0
>>> #define mmCP_FETCHER_SOURCE 0x1e22
>>> #define mmCP_FETCHER_SOURCE_BASE_IDX 0
>>> #define mmCP_PQ_WPTR_POLL_CNTL 0x1e23
>>> @@ -7778,6 +7780,8 @@
>>> #define mmCP_MES_DOORBELL_CONTROL5_BASE_IDX 1
>>> #define mmCP_MES_DOORBELL_CONTROL6 0x2841
>>> #define mmCP_MES_DOORBELL_CONTROL6_BASE_IDX 1
>>> +#define mmCP_MES_DEBUG_INTERRUPT_INSTR_PNTR 0x2842
>>> +#define mmCP_MES_DEBUG_INTERRUPT_INSTR_PNTR_BASE_IDX 1
>>> #define mmCP_MES_GP0_LO 0x2843
>>> #define mmCP_MES_GP0_LO_BASE_IDX 1
>>> #define mmCP_MES_GP0_HI 0x2844
>>> @@ -9332,10 +9336,16 @@
>>> #define mmRLC_LB_CNTR_INIT_1_BASE_IDX 1
>>> #define mmRLC_LB_CNTR_1 0x4c1c
>>> #define mmRLC_LB_CNTR_1_BASE_IDX 1
>>> +#define mmRLC_GPM_DEBUG_INST_ADDR 0x4c1d
>>> +#define mmRLC_GPM_DEBUG_INST_ADDR_BASE_IDX 1
>>> #define mmRLC_JUMP_TABLE_RESTORE 0x4c1e
>>> #define mmRLC_JUMP_TABLE_RESTORE_BASE_IDX 1
>>> #define mmRLC_PG_DELAY_2 0x4c1f
>>> #define mmRLC_PG_DELAY_2_BASE_IDX 1
>>> +#define mmRLC_GPM_DEBUG_INST_A 0x4c22
>>> +#define mmRLC_GPM_DEBUG_INST_A_BASE_IDX 1
>>> +#define mmRLC_GPM_DEBUG_INST_B 0x4c23
>>> +#define mmRLC_GPM_DEBUG_INST_B_BASE_IDX 1
>>> #define mmRLC_GPU_CLOCK_COUNT_LSB 0x4c24
>>> #define mmRLC_GPU_CLOCK_COUNT_LSB_BASE_IDX 1
>>> #define mmRLC_GPU_CLOCK_COUNT_MSB 0x4c25
>>> @@ -9720,6 +9730,8 @@
>>> #define mmRLC_SPM_THREAD_TRACE_CTRL_BASE_IDX 1
>>> #define mmRLC_LB_CNTR_2 0x4de7
>>> #define mmRLC_LB_CNTR_2_BASE_IDX 1
>>> +#define mmRLC_LX6_CORE_PDEBUG_INST 0x4deb
>>> +#define mmRLC_LX6_CORE_PDEBUG_INST_BASE_IDX 1
>>> #define mmRLC_CPAXI_DOORBELL_MON_CTRL 0x4df1
>>> #define mmRLC_CPAXI_DOORBELL_MON_CTRL_BASE_IDX 1
>>> #define mmRLC_CPAXI_DOORBELL_MON_STAT 0x4df2
>>> --
>>> 2.34.1
>>>
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