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| author | Chun-Liang Chang <Chun-Liang.Chang@amd.com> | 2021-06-11 11:05:20 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-07-08 15:14:36 -0400 |
| commit | 556a979d3c50960acd96efded7801970bd989236 (patch) | |
| tree | 9114db9a7ad39fcb25052d2622e364110fa3d3f6 /drivers/gpu/drm/amd/display/dmub/src | |
| parent | 1bc6c29f58a4e6e5e38a3a16327c07ab846c4977 (diff) | |
| download | linux-556a979d3c50960acd96efded7801970bd989236.tar.gz linux-556a979d3c50960acd96efded7801970bd989236.tar.bz2 linux-556a979d3c50960acd96efded7801970bd989236.zip | |
drm/amd/display: DMUB Outbound Interrupt Process-X86
[Why]
dmub would notify x86 response time violation by GPINT_DATAOUT
[How]
1. Use GPINT_DATAOUT to trigger x86 interrupt
2. Register GPINT_DATAOUT interrupt handler.
3. Trigger ACR while GPINT_DATAOUT occurred.
Signed-off-by: Chun-Liang Chang <Chun-Liang.Chang@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/src')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c | 15 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.h | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c | 17 |
3 files changed, 40 insertions, 2 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 973de346410d..c3ead13f4e2b 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c @@ -305,6 +305,21 @@ uint32_t dmub_dcn31_get_gpint_response(struct dmub_srv *dmub) return REG_READ(DMCUB_SCRATCH7); } +uint32_t dmub_dcn31_get_gpint_dataout(struct dmub_srv *dmub) +{ + uint32_t dataout = REG_READ(DMCUB_GPINT_DATAOUT); + + REG_UPDATE(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN, 0); + + REG_WRITE(DMCUB_GPINT_DATAOUT, 0); + REG_UPDATE(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK, 1); + REG_UPDATE(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK, 0); + + REG_UPDATE(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN, 1); + + return dataout; +} + union dmub_fw_boot_status dmub_dcn31_get_fw_boot_status(struct dmub_srv *dmub) { union dmub_fw_boot_status status; 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 9456a6a2d518..bb62605d2ac8 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.h +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.h @@ -114,7 +114,9 @@ struct dmub_srv; 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) + DMUB_SR(DMCUB_DATA_WRITE_FAULT_ADDR) \ + DMUB_SR(DMCUB_INTERRUPT_ENABLE) \ + DMUB_SR(DMCUB_INTERRUPT_ACK) #define DMUB_DCN31_FIELDS() \ DMUB_SF(DMCUB_CNTL, DMCUB_ENABLE) \ @@ -147,7 +149,9 @@ struct dmub_srv; 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(DMCUB_INBOX0_WPTR, DMCUB_INBOX0_WPTR) + DMUB_SF(DMCUB_INBOX0_WPTR, DMCUB_INBOX0_WPTR) \ + DMUB_SF(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN) \ + DMUB_SF(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK) struct dmub_srv_dcn31_reg_offset { #define DMUB_SR(reg) uint32_t reg; @@ -222,6 +226,8 @@ bool dmub_dcn31_is_gpint_acked(struct dmub_srv *dmub, uint32_t dmub_dcn31_get_gpint_response(struct dmub_srv *dmub); +uint32_t dmub_dcn31_get_gpint_dataout(struct dmub_srv *dmub); + void dmub_dcn31_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params); void dmub_dcn31_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip); 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 2bdbd7406f56..75a91cfaf036 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c @@ -224,6 +224,7 @@ static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic) funcs->set_gpint = dmub_dcn31_set_gpint; funcs->is_gpint_acked = dmub_dcn31_is_gpint_acked; funcs->get_gpint_response = dmub_dcn31_get_gpint_response; + funcs->get_gpint_dataout = dmub_dcn31_get_gpint_dataout; funcs->get_fw_status = dmub_dcn31_get_fw_boot_status; funcs->enable_dmub_boot_options = dmub_dcn31_enable_dmub_boot_options; funcs->skip_dmub_panel_power_sequence = dmub_dcn31_skip_dmub_panel_power_sequence; @@ -719,6 +720,22 @@ enum dmub_status dmub_srv_get_gpint_response(struct dmub_srv *dmub, return DMUB_STATUS_OK; } +enum dmub_status dmub_srv_get_gpint_dataout(struct dmub_srv *dmub, + uint32_t *dataout) +{ + *dataout = 0; + + if (!dmub->sw_init) + return DMUB_STATUS_INVALID; + + if (!dmub->hw_funcs.get_gpint_dataout) + return DMUB_STATUS_INVALID; + + *dataout = dmub->hw_funcs.get_gpint_dataout(dmub); + + return DMUB_STATUS_OK; +} + enum dmub_status dmub_srv_get_fw_boot_status(struct dmub_srv *dmub, union dmub_fw_boot_status *status) { |