AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-01-27 16:12:44 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

drm/amd/display: Power down hardware if set mode is not called before timeout

Browse Source 
[WHY]
In headless systems, if set mode is not called, hardware will not be
powered down on boot, causing HW/SW discrepancies.  Powering down
hardware on boot will ensure SW state is accurate.

[HOW]
Set a timer callback on boot for 10 seconds. If set mode is not called
within that time, power down hardware. Otherwise, do not power down.

Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Sung Lee 2020-06-25 13:49:31 -04:00 committed by Alex Deucher
parent eaa483642f
commit ca751df231
8 changed files with 52 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/amd/display/dc/core/dc.c
View File

@ -2683,6 +2683,13 @@ void dc_interrupt_ack(struct dc *dc, enum dc_irq_source src)
dal_irq_service_ack(dc->res_pool->irqs, src);
}
void dc_power_down_on_boot(struct dc *dc)
{
if (dc->ctx->dce_environment != DCE_ENV_VIRTUAL_HW &&
dc->hwss.power_down_on_boot)
dc->hwss.power_down_on_boot(dc);
}
void dc_set_power_state(
struct dc *dc,
enum dc_acpi_cm_power_state power_state)

3
drivers/gpu/drm/amd/display/dc/dc.h
View File

@ -1029,6 +1029,7 @@ bool dc_resource_is_dsc_encoding_supported(const struct dc *dc);
*/
bool dc_commit_state(struct dc *dc, struct dc_state *context);
void dc_power_down_on_boot(struct dc *dc);
struct dc_state *dc_create_state(struct dc *dc);
struct dc_state *dc_copy_state(struct dc_state *src_ctx);
@ -1229,6 +1230,8 @@ void dc_set_power_state(
enum dc_acpi_cm_power_state power_state);
void dc_resume(struct dc *dc);
void dc_power_down_on_boot(struct dc *dc);
#if defined(CONFIG_DRM_AMD_DC_HDCP)
/*
* HDCP Interfaces

69
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
View File

@ -1390,38 +1390,6 @@ void dcn10_init_hw(struct dc *dc)
}
}
/* In headless boot cases, DIG may be turned
* on which causes HW/SW discrepancies.
* To avoid this, power down hardware on boot
* if DIG is turned on and seamless boot not enabled
*/
if (dc->config.power_down_display_on_boot) {
struct dc_link *edp_link = get_edp_link(dc);
if (edp_link &&
edp_link->link_enc->funcs->is_dig_enabled &&
edp_link->link_enc->funcs->is_dig_enabled(edp_link->link_enc) &&
dc->hwseq->funcs.edp_backlight_control &&
dc->hwss.power_down &&
dc->hwss.edp_power_control) {
dc->hwseq->funcs.edp_backlight_control(edp_link, false);
dc->hwss.power_down(dc);
dc->hwss.edp_power_control(edp_link, false);
} else {
for (i = 0; i < dc->link_count; i++) {
struct dc_link *link = dc->links[i];
if (link->link_enc->funcs->is_dig_enabled &&
link->link_enc->funcs->is_dig_enabled(link->link_enc) &&
dc->hwss.power_down) {
dc->hwss.power_down(dc);
break;
}
}
}
}
if (!is_optimized_init_done) {
for (i = 0; i < res_pool->audio_count; i++) {
@ -1472,6 +1440,43 @@ void dcn10_init_hw(struct dc *dc)
}
/* In headless boot cases, DIG may be turned
* on which causes HW/SW discrepancies.
* To avoid this, power down hardware on boot
* if DIG is turned on and seamless boot not enabled
*/
void dcn10_power_down_on_boot(struct dc *dc)
{
int i = 0;
if (dc->config.power_down_display_on_boot) {
struct dc_link *edp_link = get_edp_link(dc);
if (edp_link &&
edp_link->link_enc->funcs->is_dig_enabled &&
edp_link->link_enc->funcs->is_dig_enabled(edp_link->link_enc) &&
dc->hwseq->funcs.edp_backlight_control &&
dc->hwss.power_down &&
dc->hwss.edp_power_control) {
dc->hwseq->funcs.edp_backlight_control(edp_link, false);
dc->hwss.power_down(dc);
dc->hwss.edp_power_control(edp_link, false);
} else {
for (i = 0; i < dc->link_count; i++) {
struct dc_link *link = dc->links[i];
if (link->link_enc->funcs->is_dig_enabled &&
link->link_enc->funcs->is_dig_enabled(link->link_enc) &&
dc->hwss.power_down) {
dc->hwss.power_down(dc);
break;
}
}
}
}
}
void dcn10_reset_hw_ctx_wrap(
struct dc *dc,
struct dc_state *context)

1
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h
View File

@ -109,6 +109,7 @@ void dcn10_program_pipe(
void dcn10_program_gamut_remap(struct pipe_ctx *pipe_ctx);
void dcn10_init_hw(struct dc *dc);
void dcn10_init_pipes(struct dc *dc, struct dc_state *context);
void dcn10_power_down_on_boot(struct dc *dc);
enum dc_status dce110_apply_ctx_to_hw(
struct dc *dc,
struct dc_state *context);

1
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_init.c
View File

@ -30,6 +30,7 @@
static const struct hw_sequencer_funcs dcn10_funcs = {
.program_gamut_remap = dcn10_program_gamut_remap,
.init_hw = dcn10_init_hw,
.power_down_on_boot = dcn10_power_down_on_boot,
.apply_ctx_to_hw = dce110_apply_ctx_to_hw,
.apply_ctx_for_surface = dcn10_apply_ctx_for_surface,
.post_unlock_program_front_end = dcn10_post_unlock_program_front_end,

1
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c
View File

@ -30,6 +30,7 @@
static const struct hw_sequencer_funcs dcn20_funcs = {
.program_gamut_remap = dcn10_program_gamut_remap,
.init_hw = dcn10_init_hw,
.power_down_on_boot = dcn10_power_down_on_boot,
.apply_ctx_to_hw = dce110_apply_ctx_to_hw,
.apply_ctx_for_surface = NULL,
.program_front_end_for_ctx = dcn20_program_front_end_for_ctx,

1
drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c
View File

@ -31,6 +31,7 @@
static const struct hw_sequencer_funcs dcn21_funcs = {
.program_gamut_remap = dcn10_program_gamut_remap,
.init_hw = dcn10_init_hw,
.power_down_on_boot = dcn10_power_down_on_boot,
.apply_ctx_to_hw = dce110_apply_ctx_to_hw,
.apply_ctx_for_surface = NULL,
.program_front_end_for_ctx = dcn20_program_front_end_for_ctx,

1
drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
View File

@ -56,6 +56,7 @@ struct hw_sequencer_funcs {
/* Pipe Programming Related */
void (*init_hw)(struct dc *dc);
void (*power_down_on_boot)(struct dc *dc);
void (*enable_accelerated_mode)(struct dc *dc,
struct dc_state *context);
enum dc_status (*apply_ctx_to_hw)(struct dc *dc,