diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4641-drm-amd-pp-Fix-OD-feature-enable-failed-on-Vega10-wo.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4641-drm-amd-pp-Fix-OD-feature-enable-failed-on-Vega10-wo.patch | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4641-drm-amd-pp-Fix-OD-feature-enable-failed-on-Vega10-wo.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4641-drm-amd-pp-Fix-OD-feature-enable-failed-on-Vega10-wo.patch new file mode 100644 index 00000000..aa6d7eb0 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4641-drm-amd-pp-Fix-OD-feature-enable-failed-on-Vega10-wo.patch @@ -0,0 +1,53 @@ +From 1572dafa69d7c575e814487ce37498d857eace05 Mon Sep 17 00:00:00 2001 +From: Rex Zhu <Rex.Zhu@amd.com> +Date: Tue, 12 Jun 2018 14:26:00 +0800 +Subject: [PATCH 4641/5725] drm/amd/pp: Fix OD feature enable failed on Vega10 + workstation cards + +As hw required, soc clock must large than mclk, So we set max soc +clock to OD Max Memory clk. +But on workstation, vbios do not support OD feature, the OD max memory +clock is equal to 0. In this case, driver can support underclocking. +and set od max memory clock to the value in highest memory dpm level. +So the od max memory clock should be less than highest soc clock. +and driver should not change the soc clock. + +caused by commit ca57b9b0a156 +("drm/amd/pp: Allow underclocking when od table is empty in vbios") + +Reviewed-by: Evan Quan <evan.quan@amd.com> +Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> +--- + drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c | 9 +++++++-- + 1 file changed, 7 insertions(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c +index 896c10b..f49e0d3 100644 +--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c ++++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c +@@ -321,8 +321,12 @@ static int vega10_odn_initial_default_setting(struct pp_hwmgr *hwmgr) + odn_table->min_vddc = dep_table[0]->entries[0].vddc; + + i = od_table[2]->count - 1; +- od_table[2]->entries[i].clk = hwmgr->platform_descriptor.overdriveLimit.memoryClock; +- od_table[2]->entries[i].vddc = odn_table->max_vddc; ++ od_table[2]->entries[i].clk = hwmgr->platform_descriptor.overdriveLimit.memoryClock > od_table[2]->entries[i].clk ? ++ hwmgr->platform_descriptor.overdriveLimit.memoryClock : ++ od_table[2]->entries[i].clk; ++ od_table[2]->entries[i].vddc = odn_table->max_vddc > od_table[2]->entries[i].vddc ? ++ odn_table->max_vddc : ++ od_table[2]->entries[i].vddc; + + return 0; + } +@@ -1325,6 +1329,7 @@ static int vega10_setup_default_dpm_tables(struct pp_hwmgr *hwmgr) + if (hwmgr->platform_descriptor.overdriveLimit.memoryClock == 0) + hwmgr->platform_descriptor.overdriveLimit.memoryClock = + dpm_table->dpm_levels[dpm_table->count-1].value; ++ + vega10_init_dpm_state(&(dpm_table->dpm_state)); + + data->dpm_table.eclk_table.count = 0; +-- +2.7.4 + |