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drm/amd/display: Set minimum requirement for using PSR-SU on Rembrandt

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A number of parade TCONs are causing system hangs when utilized with
older DMUB firmware and PSR-SU. Some changes have been introduced into
DMUB firmware to add resilience against these failures.

Don't allow running PSR-SU unless on the newer firmware.

Cc: stable@vger.kernel.org
Cc: Sean Wang <sean.ns.wang@amd.com>
Cc: Marc Rossi <Marc.Rossi@amd.com>
Cc: Hamza Mahfooz <Hamza.Mahfooz@amd.com>
Cc: Tsung-hua (Ryan) Lin <Tsung-hua.Lin@amd.com>
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2443
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mario Limonciello
2023-06-23 10:05:20 -05:00
committed by Alex Deucher
parent 274d205cb5
commit c35b6ea8f2
7 changed files with 25 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c
View File

@@ -302,6 +302,11 @@ bool dmub_dcn31_is_supported(struct dmub_srv *dmub)
return supported;
}
bool dmub_dcn31_is_psrsu_supported(struct dmub_srv *dmub)
{
return dmub->fw_version >= DMUB_FW_VERSION(4, 0, 59);
}
void dmub_dcn31_set_gpint(struct dmub_srv *dmub,
union dmub_gpint_data_register reg)
{

2
drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.h
View File

@@ -221,6 +221,8 @@ bool dmub_dcn31_is_hw_init(struct dmub_srv *dmub);
bool dmub_dcn31_is_supported(struct dmub_srv *dmub);
bool dmub_dcn31_is_psrsu_supported(struct dmub_srv *dmub);
void dmub_dcn31_set_gpint(struct dmub_srv *dmub,
union dmub_gpint_data_register reg);

10
drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
View File

@@ -226,14 +226,16 @@ static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic)
case DMUB_ASIC_DCN314:
case DMUB_ASIC_DCN315:
case DMUB_ASIC_DCN316:
if (asic == DMUB_ASIC_DCN314)
if (asic == DMUB_ASIC_DCN314) {
dmub->regs_dcn31 = &dmub_srv_dcn314_regs;
else if (asic == DMUB_ASIC_DCN315)
} else if (asic == DMUB_ASIC_DCN315) {
dmub->regs_dcn31 = &dmub_srv_dcn315_regs;
else if (asic == DMUB_ASIC_DCN316)
} else if (asic == DMUB_ASIC_DCN316) {
dmub->regs_dcn31 = &dmub_srv_dcn316_regs;
else
} else {
dmub->regs_dcn31 = &dmub_srv_dcn31_regs;
funcs->is_psrsu_supported = dmub_dcn31_is_psrsu_supported;
}
funcs->reset = dmub_dcn31_reset;
funcs->reset_release = dmub_dcn31_reset_release;
funcs->backdoor_load = dmub_dcn31_backdoor_load;