mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-28 21:33:52 +00:00
Code Issues Releases Wiki Activity

drm/amd/display: Add Connection Manager boot option.

Browse source 
[Why]
Boot up behaviour may differ depending on the Connection Manager
handling USB4 tunneling.

[How]
Send boot option to firmware to indicate Connection Manager.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Jimmy Kizito <Jimmy.Kizito@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jimmy Kizito 2022-04-07 13:55:04 -04:00 committed by Alex Deucher
parent 42a809eba5
commit 0f05c998d1
3 changed files with 4 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/gpu/drm/amd/display/dmub/dmub_srv.h
View file

@ -243,6 +243,7 @@ struct dmub_srv_hw_params {
bool power_optimization;
bool dpia_supported;
bool disable_dpia;
bool usb4_cm_version;
};
/**

3
drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
View file

@ -350,8 +350,9 @@ union dmub_fw_boot_options {
uint32_t power_optimization: 1;
uint32_t diag_env: 1; /* 1 if diagnostic environment */
uint32_t gpint_scratch8: 1; /* 1 if GPINT is in scratch8*/
uint32_t usb4_cm_version: 1; /**< USB4 CM Version */
uint32_t reserved : 18; /**< reserved */
uint32_t reserved : 17; /**< reserved */
} bits; /**< boot bits */
uint32_t all; /**< 32-bit access to bits */
};

1
drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c
View file

@ -340,6 +340,7 @@ void dmub_dcn31_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmu
boot_options.bits.z10_disable = params->disable_z10;
boot_options.bits.dpia_supported = params->dpia_supported;
boot_options.bits.enable_dpia = params->disable_dpia ? 0 : 1;
boot_options.bits.usb4_cm_version = params->usb4_cm_version;
boot_options.bits.power_optimization = params->power_optimization;
boot_options.bits.sel_mux_phy_c_d_phy_f_g = (dmub->asic == DMUB_ASIC_DCN31B) ? 1 : 0;