From: Austin Zheng <austin.zh...@amd.com>
[Why]
Videos using YUV420 format may result in high power being used.
Disabling MPO may result in lower power usage.
Update interface that can be used to check power profile of a dc_state.
[How]
Allow pstate switching in VBlank as last entry in strategy candidates.
Add helper functions that can be used to determine power level:
-get power profile after a dc_state has undergone full validation
Reviewed-by: Aric Cyr <aric....@amd.com>
Signed-off-by: Austin Zheng <austin.zh...@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pil...@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 9 ++++++++-
.../dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c | 1 +
drivers/gpu/drm/amd/display/dc/inc/core_types.h | 4 ++++
.../dc/resource/dcn315/dcn315_resource.c | 6 ++++++
.../dc/resource/dcn401/dcn401_resource.c | 17 +++++++++++++++++
5 files changed, 36 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c
b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 98b94415e86c..024d2d0bf457 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -6018,8 +6018,15 @@ void dc_set_edp_power(const struct dc *dc, struct
dc_link *edp_link,
struct dc_power_profile dc_get_power_profile_for_dc_state(const struct
dc_state *context)
{
struct dc_power_profile profile = { 0 };
+ struct dc *dc = NULL;
- profile.power_level +=
!context->bw_ctx.bw.dcn.clk.p_state_change_support;
+ if (!context || !context->clk_mgr || !context->clk_mgr->ctx ||
!context->clk_mgr->ctx->dc)
+ return profile;
+
+ dc = context->clk_mgr->ctx->dc;
+
+ if (dc->res_pool->funcs->get_power_profile)
+ profile.power_level =
dc->res_pool->funcs->get_power_profile(context);
return profile;
}
diff --git
a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c
b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c
index 1cf9015e854a..2e9c59e9e0c1 100644
---
a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c
+++
b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c
@@ -1798,6 +1798,7 @@ bool pmo_dcn4_fams2_init_for_pstate_support(struct
dml2_pmo_init_for_pstate_supp
}
if (s->pmo_dcn4.num_pstate_candidates > 0) {
+
s->pmo_dcn4.pstate_strategy_candidates[s->pmo_dcn4.num_pstate_candidates-1].allow_state_increase
= true;
s->pmo_dcn4.cur_pstate_candidate = -1;
return true;
} else {
diff --git a/drivers/gpu/drm/amd/display/dc/inc/core_types.h
b/drivers/gpu/drm/amd/display/dc/inc/core_types.h
index bfb8b8502d20..8597e866bfe6 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/core_types.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/core_types.h
@@ -215,6 +215,10 @@ struct resource_funcs {
void (*get_panel_config_defaults)(struct dc_panel_config *panel_config);
void (*build_pipe_pix_clk_params)(struct pipe_ctx *pipe_ctx);
+ /*
+ * Get indicator of power from a context that went through full
validation
+ */
+ int (*get_power_profile)(const struct dc_state *context);
};
struct audio_support{
diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c
b/drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c
index 3f4b9dba4112..f6b840f046a5 100644
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c
@@ -1812,6 +1812,11 @@ static void dcn315_get_panel_config_defaults(struct
dc_panel_config *panel_confi
*panel_config = panel_config_defaults;
}
+static int dcn315_get_power_profile(const struct dc_state *context)
+{
+ return !context->bw_ctx.bw.dcn.clk.p_state_change_support;
+}
+
static struct dc_cap_funcs cap_funcs = {
.get_dcc_compression_cap = dcn20_get_dcc_compression_cap
};
@@ -1840,6 +1845,7 @@ static struct resource_funcs dcn315_res_pool_funcs = {
.update_bw_bounding_box = dcn315_update_bw_bounding_box,
.patch_unknown_plane_state = dcn20_patch_unknown_plane_state,
.get_panel_config_defaults = dcn315_get_panel_config_defaults,
+ .get_power_profile = dcn315_get_power_profile,
};
static bool dcn315_resource_construct(
diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c
b/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c
index f2653a86d3e7..59184abab1a7 100644
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c
@@ -1688,6 +1688,22 @@ static void dcn401_build_pipe_pix_clk_params(struct
pipe_ctx *pipe_ctx)
}
}
+static int dcn401_get_power_profile(const struct dc_state *context)
+{
+ int uclk_mhz = context->bw_ctx.bw.dcn.clk.dramclk_khz / 1000;
+ int dpm_level = 0;
+
+ for (int i = 0; i <
context->clk_mgr->bw_params->clk_table.num_entries_per_clk.num_memclk_levels;
i++) {
+ if
(context->clk_mgr->bw_params->clk_table.entries[i].memclk_mhz == 0 ||
+ uclk_mhz <
context->clk_mgr->bw_params->clk_table.entries[i].memclk_mhz)
+ break;
+ if (uclk_mhz >
context->clk_mgr->bw_params->clk_table.entries[i].memclk_mhz)
+ dpm_level++;
+ }
+
+ return dpm_level;
+}
+
static struct resource_funcs dcn401_res_pool_funcs = {
.destroy = dcn401_destroy_resource_pool,
.link_enc_create = dcn401_link_encoder_create,
@@ -1714,6 +1730,7 @@ static struct resource_funcs dcn401_res_pool_funcs = {
.prepare_mcache_programming = dcn401_prepare_mcache_programming,
.build_pipe_pix_clk_params = dcn401_build_pipe_pix_clk_params,
.calculate_mall_ways_from_bytes = dcn32_calculate_mall_ways_from_bytes,
+ .get_power_profile = dcn401_get_power_profile,
};
static uint32_t read_pipe_fuses(struct dc_context *ctx)
--
2.46.0
