The patch below does not apply to the 6.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable@xxxxxxxxxxxxxxx>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.4.y git checkout FETCH_HEAD git cherry-pick -x cd2e31a9ab93d13c412a36c6e26811e0f830985b # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable@xxxxxxxxxxxxxxx>' --in-reply-to '2023072122-overplant-unplanned-9e93@gregkh' --subject-prefix 'PATCH 6.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From cd2e31a9ab93d13c412a36c6e26811e0f830985b Mon Sep 17 00:00:00 2001 From: Mario Limonciello <mario.limonciello@xxxxxxx> Date: Fri, 23 Jun 2023 10:05:21 -0500 Subject: [PATCH] drm/amd/display: Set minimum requirement for using PSR-SU on Phoenix The same parade TCON issue can potentially happen on Phoenix, and the same PSR resilience changes have been ported into the DMUB firmware. Don't allow running PSR-SU unless on the newer firmware. Cc: stable@xxxxxxxxxxxxxxx Cc: Sean Wang <sean.ns.wang@xxxxxxx> Cc: Marc Rossi <Marc.Rossi@xxxxxxx> Cc: Hamza Mahfooz <Hamza.Mahfooz@xxxxxxx> Cc: Tsung-hua (Ryan) Lin <Tsung-hua.Lin@xxxxxxx> Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx> Reviewed-by: Leo Li <sunpeng.li@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn314.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn314.c index 48a06dbd9be7..f161aeb7e7c4 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn314.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn314.c @@ -60,3 +60,8 @@ const struct dmub_srv_dcn31_regs dmub_srv_dcn314_regs = { { DMUB_DCN31_FIELDS() }, #undef DMUB_SF }; + +bool dmub_dcn314_is_psrsu_supported(struct dmub_srv *dmub) +{ + return dmub->fw_version >= DMUB_FW_VERSION(8, 0, 16); +} diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn314.h b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn314.h index 674267a2940e..f213bd82c911 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn314.h +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn314.h @@ -30,4 +30,6 @@ extern const struct dmub_srv_dcn31_regs dmub_srv_dcn314_regs; +bool dmub_dcn314_is_psrsu_supported(struct dmub_srv *dmub); + #endif /* _DMUB_DCN314_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 7a31e3e27bab..bdaf43892f47 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c @@ -228,6 +228,7 @@ static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic) case DMUB_ASIC_DCN316: if (asic == DMUB_ASIC_DCN314) { dmub->regs_dcn31 = &dmub_srv_dcn314_regs; + funcs->is_psrsu_supported = dmub_dcn314_is_psrsu_supported; } else if (asic == DMUB_ASIC_DCN315) { dmub->regs_dcn31 = &dmub_srv_dcn315_regs; } else if (asic == DMUB_ASIC_DCN316) {
