[Why & How]
Extend existing support for DCN2.1 DMUB diagnostic logging to
DCN3.1 so we can collect useful information if the DMUB hangs.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
---
.../gpu/drm/amd/display/dmub/src/dmub_dcn31.c | 60 +++++++++++++++++++
.../gpu/drm/amd/display/dmub/src/dmub_dcn31.h | 16 ++++-
.../gpu/drm/amd/display/dmub/src/dmub_srv.c | 5 +-
3 files changed, 76 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c
index 8c886ece71..973de34641 100644
--- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c
@@ -352,3 +352,63 @@ uint32_t dmub_dcn31_get_current_time(struct dmub_srv *dmub)
{
return REG_READ(DMCUB_TIMER_CURRENT);
}
+
+void dmub_dcn31_get_diagnostic_data(struct dmub_srv *dmub, struct dmub_diagnostic_data *diag_data)
+{
+ uint32_t is_dmub_enabled, is_soft_reset, is_sec_reset;
+ uint32_t is_traceport_enabled, is_cw0_enabled, is_cw6_enabled;
+
+ if (!dmub || !diag_data)
+ return;
+
+ memset(diag_data, 0, sizeof(*diag_data));
+
+ diag_data->dmcub_version = dmub->fw_version;
+
+ diag_data->scratch[0] = REG_READ(DMCUB_SCRATCH0);
+ diag_data->scratch[1] = REG_READ(DMCUB_SCRATCH1);
+ diag_data->scratch[2] = REG_READ(DMCUB_SCRATCH2);
+ diag_data->scratch[3] = REG_READ(DMCUB_SCRATCH3);
+ diag_data->scratch[4] = REG_READ(DMCUB_SCRATCH4);
+ diag_data->scratch[5] = REG_READ(DMCUB_SCRATCH5);
+ diag_data->scratch[6] = REG_READ(DMCUB_SCRATCH6);
+ diag_data->scratch[7] = REG_READ(DMCUB_SCRATCH7);
+ diag_data->scratch[8] = REG_READ(DMCUB_SCRATCH8);
+ diag_data->scratch[9] = REG_READ(DMCUB_SCRATCH9);
+ diag_data->scratch[10] = REG_READ(DMCUB_SCRATCH10);
+ diag_data->scratch[11] = REG_READ(DMCUB_SCRATCH11);
+ diag_data->scratch[12] = REG_READ(DMCUB_SCRATCH12);
+ diag_data->scratch[13] = REG_READ(DMCUB_SCRATCH13);
+ diag_data->scratch[14] = REG_READ(DMCUB_SCRATCH14);
+ diag_data->scratch[15] = REG_READ(DMCUB_SCRATCH15);
+
+ diag_data->undefined_address_fault_addr = REG_READ(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR);
+ diag_data->inst_fetch_fault_addr = REG_READ(DMCUB_INST_FETCH_FAULT_ADDR);
+ diag_data->data_write_fault_addr = REG_READ(DMCUB_DATA_WRITE_FAULT_ADDR);
+
+ diag_data->inbox1_rptr = REG_READ(DMCUB_INBOX1_RPTR);
+ diag_data->inbox1_wptr = REG_READ(DMCUB_INBOX1_WPTR);
+ diag_data->inbox1_size = REG_READ(DMCUB_INBOX1_SIZE);
+
+ diag_data->inbox0_rptr = REG_READ(DMCUB_INBOX0_RPTR);
+ diag_data->inbox0_wptr = REG_READ(DMCUB_INBOX0_WPTR);
+ diag_data->inbox0_size = REG_READ(DMCUB_INBOX0_SIZE);
+
+ REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_dmub_enabled);
+ diag_data->is_dmcub_enabled = is_dmub_enabled;
+
+ REG_GET(DMCUB_CNTL2, DMCUB_SOFT_RESET, &is_soft_reset);
+ diag_data->is_dmcub_soft_reset = is_soft_reset;
+
+ REG_GET(DMCUB_SEC_CNTL, DMCUB_SEC_RESET_STATUS, &is_sec_reset);
+ diag_data->is_dmcub_secure_reset = is_sec_reset;
+
+ REG_GET(DMCUB_CNTL, DMCUB_TRACEPORT_EN, &is_traceport_enabled);
+ diag_data->is_traceport_en = is_traceport_enabled;
+
+ REG_GET(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE, &is_cw0_enabled);
+ diag_data->is_cw0_enabled = is_cw0_enabled;
+
+ REG_GET(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE, &is_cw6_enabled);
+ diag_data->is_cw6_enabled = is_cw6_enabled;
+}
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.h b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.h
index 2829c3e9a3..9456a6a2d5 100644
--- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.h
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.h
@@ -36,6 +36,9 @@ struct dmub_srv;
DMUB_SR(DMCUB_CNTL) \
DMUB_SR(DMCUB_CNTL2) \
DMUB_SR(DMCUB_SEC_CNTL) \
+ DMUB_SR(DMCUB_INBOX0_SIZE) \
+ DMUB_SR(DMCUB_INBOX0_RPTR) \
+ DMUB_SR(DMCUB_INBOX0_WPTR) \
DMUB_SR(DMCUB_INBOX1_BASE_ADDRESS) \
DMUB_SR(DMCUB_INBOX1_SIZE) \
DMUB_SR(DMCUB_INBOX1_RPTR) \
@@ -103,11 +106,15 @@ struct dmub_srv;
DMUB_SR(DMCUB_SCRATCH14) \
DMUB_SR(DMCUB_SCRATCH15) \
DMUB_SR(DMCUB_GPINT_DATAIN1) \
+ DMUB_SR(DMCUB_GPINT_DATAOUT) \
DMUB_SR(CC_DC_PIPE_DIS) \
DMUB_SR(MMHUBBUB_SOFT_RESET) \
DMUB_SR(DCN_VM_FB_LOCATION_BASE) \
DMUB_SR(DCN_VM_FB_OFFSET) \
- DMUB_SR(DMCUB_TIMER_CURRENT)
+ DMUB_SR(DMCUB_TIMER_CURRENT) \
+ DMUB_SR(DMCUB_INST_FETCH_FAULT_ADDR) \
+ DMUB_SR(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR) \
+ DMUB_SR(DMCUB_DATA_WRITE_FAULT_ADDR)
#define DMUB_DCN31_FIELDS() \
DMUB_SF(DMCUB_CNTL, DMCUB_ENABLE) \
@@ -115,6 +122,7 @@ struct dmub_srv;
DMUB_SF(DMCUB_CNTL2, DMCUB_SOFT_RESET) \
DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET) \
DMUB_SF(DMCUB_SEC_CNTL, DMCUB_MEM_UNIT_ID) \
+ DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET_STATUS) \
DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_TOP_ADDRESS) \
DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE) \
DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_TOP_ADDRESS) \
@@ -138,11 +146,13 @@ struct dmub_srv;
DMUB_SF(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE) \
DMUB_SF(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET) \
DMUB_SF(DCN_VM_FB_LOCATION_BASE, FB_BASE) \
- DMUB_SF(DCN_VM_FB_OFFSET, FB_OFFSET)
+ DMUB_SF(DCN_VM_FB_OFFSET, FB_OFFSET) \
+ DMUB_SF(DMCUB_INBOX0_WPTR, DMCUB_INBOX0_WPTR)
struct dmub_srv_dcn31_reg_offset {
#define DMUB_SR(reg) uint32_t reg;
DMUB_DCN31_REGS()
+ DMCUB_INTERNAL_REGS()
#undef DMUB_SR
};
@@ -227,4 +237,6 @@ void dmub_dcn31_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);
uint32_t dmub_dcn31_get_current_time(struct dmub_srv *dmub);
+void dmub_dcn31_get_diagnostic_data(struct dmub_srv *dmub, struct dmub_diagnostic_data *diag_data);
+
#endif /* _DMUB_DCN31_H_ */
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
index a195734b4d..e58740afdc 100644
--- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
@@ -211,6 +211,7 @@ static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic)
#ifdef CONFIG_DRM_AMD_DC_DCN3_1
case DMUB_ASIC_DCN31:
+ dmub->regs_dcn31 = &dmub_srv_dcn31_regs;
funcs->reset = dmub_dcn31_reset;
funcs->reset_release = dmub_dcn31_reset_release;
funcs->backdoor_load = dmub_dcn31_backdoor_load;
@@ -234,9 +235,7 @@ static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic)
funcs->get_outbox0_wptr = dmub_dcn31_get_outbox0_wptr;
funcs->set_outbox0_rptr = dmub_dcn31_set_outbox0_rptr;
- if (asic == DMUB_ASIC_DCN31) {
- dmub->regs_dcn31 = &dmub_srv_dcn31_regs;
- }
+ funcs->get_diagnostic_data = dmub_dcn31_get_diagnostic_data;
funcs->get_current_time = dmub_dcn31_get_current_time;
--
2.25.1
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