diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3424-drm-amd-display-reprogram-VM-config-when-system-resu.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3424-drm-amd-display-reprogram-VM-config-when-system-resu.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3424-drm-amd-display-reprogram-VM-config-when-system-resu.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3424-drm-amd-display-reprogram-VM-config-when-system-resu.patch new file mode 100644 index 00000000..0ebdaaff --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3424-drm-amd-display-reprogram-VM-config-when-system-resu.patch @@ -0,0 +1,45 @@ +From 43316ae2274d58cda5a87bb7daa68e887d6156be Mon Sep 17 00:00:00 2001 +From: Lewis Huang <Lewis.Huang@amd.com> +Date: Mon, 22 Jul 2019 15:23:32 -0400 +Subject: [PATCH 3424/4256] drm/amd/display: reprogram VM config when system + resume + +[Why] +The vm config will be clear to 0 when system enter S4. It will +cause hubbub didn't know how to fetch data when system resume. +The flip always pending because earliest_inuse_address and +request_address are different. + +[How] +Reprogram VM config when system resume + +Signed-off-by: Lewis Huang <Lewis.Huang@amd.com> +Reviewed-by: Jun Lei <Jun.Lei@amd.com> +Acked-by: Eric Yang <eric.yang2@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc.c | 8 ++++++++ + 1 file changed, 8 insertions(+) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c +index 3e79bdbc68e9..90c860d8e449 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc.c +@@ -2273,6 +2273,14 @@ void dc_set_power_state( + dc_resource_state_construct(dc, dc->current_state); + + dc->hwss.init_hw(dc); ++ ++#ifdef CONFIG_DRM_AMD_DC_DCN2_0 ++ if (dc->hwss.init_sys_ctx != NULL && ++ dc->vm_pa_config.valid) { ++ dc->hwss.init_sys_ctx(dc->hwseq, dc, &dc->vm_pa_config); ++ } ++#endif ++ + break; + default: + ASSERT(dc->current_state->stream_count == 0); +-- +2.17.1 + |