[PATCH v3 2/6] drm/amdgpu: add support of gfx10 register dump

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Adding gfx10 gc registers to be used for register
dump via devcoredump during a gpu reset.

Signed-off-by: Sunil Khatri <sunil.khatri@xxxxxxx>
---
 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            |   1 +
 .../include/asic_reg/gc/gc_10_1_0_offset.h    |  12 ++
 5 files changed, 154 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index e0d7f4ee7e16..210af65a744c 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;
+	char	reg_name[50];
+};
+
 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..3b3fb41b138c 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]));
+	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..2dbeeb6e517d 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.h
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.h
@@ -88,6 +88,7 @@ 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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