drm/amd/display: Init DPPCLK from SMU on dcn32
[WHY & HOW]
DPPCLK ranges should be obtained from the SMU when available.
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Chaitanya Dhere <chaitanya.dhere@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
index 668f05c8..bec252e 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
@@ -216,6 +216,16 @@
if (clk_mgr_base->bw_params->dc_mode_limit.dispclk_mhz > 1950)
clk_mgr_base->bw_params->dc_mode_limit.dispclk_mhz = 1950;
+ /* DPPCLK */
+ dcn32_init_single_clock(clk_mgr, PPCLK_DPPCLK,
+ &clk_mgr_base->bw_params->clk_table.entries[0].dppclk_mhz,
+ &num_entries_per_clk->num_dppclk_levels);
+ num_levels = num_entries_per_clk->num_dppclk_levels;
+ clk_mgr_base->bw_params->dc_mode_limit.dppclk_mhz = dcn30_smu_get_dc_mode_max_dpm_freq(clk_mgr, PPCLK_DPPCLK);
+ //HW recommends limit of 1950 MHz in display clock for all DCN3.2.x
+ if (clk_mgr_base->bw_params->dc_mode_limit.dppclk_mhz > 1950)
+ clk_mgr_base->bw_params->dc_mode_limit.dppclk_mhz = 1950;
+
if (num_entries_per_clk->num_dcfclk_levels &&
num_entries_per_clk->num_dtbclk_levels &&
num_entries_per_clk->num_dispclk_levels)
@@ -240,6 +250,10 @@
= khz_to_mhz_ceil(clk_mgr_base->ctx->dc->debug.min_dpp_clk_khz);
}
+ for (i = 0; i < num_levels; i++)
+ if (clk_mgr_base->bw_params->clk_table.entries[i].dppclk_mhz > 1950)
+ clk_mgr_base->bw_params->clk_table.entries[i].dppclk_mhz = 1950;
+
/* Get UCLK, update bounding box */
clk_mgr_base->funcs->get_memclk_states_from_smu(clk_mgr_base);
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c
index 2a58a76..72cca36 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c
@@ -703,13 +703,8 @@
return (struct dml2_context *) kzalloc(sizeof(struct dml2_context), GFP_KERNEL);
}
-bool dml2_create(const struct dc *in_dc, const struct dml2_configuration_options *config, struct dml2_context **dml2)
+static void dml2_init(const struct dc *in_dc, const struct dml2_configuration_options *config, struct dml2_context **dml2)
{
- // Allocate Mode Lib Ctx
- *dml2 = dml2_allocate_memory();
-
- if (!(*dml2))
- return false;
// Store config options
(*dml2)->config = *config;
@@ -737,9 +732,18 @@
initialize_dml2_soc_bbox(*dml2, in_dc, &(*dml2)->v20.dml_core_ctx.soc);
initialize_dml2_soc_states(*dml2, in_dc, &(*dml2)->v20.dml_core_ctx.soc, &(*dml2)->v20.dml_core_ctx.states);
+}
- /*Initialize DML20 instance which calls dml2_core_create, and core_dcn3_populate_informative*/
- //dml2_initialize_instance(&(*dml_ctx)->v20.dml_init);
+bool dml2_create(const struct dc *in_dc, const struct dml2_configuration_options *config, struct dml2_context **dml2)
+{
+ // Allocate Mode Lib Ctx
+ *dml2 = dml2_allocate_memory();
+
+ if (!(*dml2))
+ return false;
+
+ dml2_init(in_dc, config, dml2);
+
return true;
}
@@ -779,3 +783,11 @@
return true;
}
+
+void dml2_reinit(const struct dc *in_dc,
+ const struct dml2_configuration_options *config,
+ struct dml2_context **dml2)
+{
+
+ dml2_init(in_dc, config, dml2);
+}
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h b/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h
index ee0eb18..cc662d6 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h
@@ -214,6 +214,9 @@
struct dml2_context *src_dml2);
bool dml2_create_copy(struct dml2_context **dst_dml2,
struct dml2_context *src_dml2);
+void dml2_reinit(const struct dc *in_dc,
+ const struct dml2_configuration_options *config,
+ struct dml2_context **dml2);
/*
* dml2_validate - Determines if a display configuration is supported or not.
diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c
index f844f57..ce1754c 100644
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c
@@ -1931,6 +1931,8 @@
{
DC_FP_START();
dcn32_update_bw_bounding_box_fpu(dc, bw_params);
+ if (dc->debug.using_dml2 && dc->current_state && dc->current_state->bw_ctx.dml2)
+ dml2_reinit(dc, &dc->dml2_options, &dc->current_state->bw_ctx.dml2);
DC_FP_END();
}
diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c
index b356fed..296a0a8 100644
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c
@@ -1581,6 +1581,8 @@
{
DC_FP_START();
dcn321_update_bw_bounding_box_fpu(dc, bw_params);
+ if (dc->debug.using_dml2 && dc->current_state && dc->current_state->bw_ctx.dml2)
+ dml2_reinit(dc, &dc->dml2_options, &dc->current_state->bw_ctx.dml2);
DC_FP_END();
}
