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drm/amd/display: Disable MALL when SMU not present

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[Why]
Bring-up purpose code to disable DMUB calling into
SMU and timeout for MALL when SMU is not present.

[How]
Disable MALL when SMU is not present.

Signed-off-by: Chris Park <Chris.Park@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chris Park 2021-03-19 14:55:12 -04:00 committed by Alex Deucher
parent 3b77bd2478
commit 6213044059
3 changed files with 14 additions and 0 deletions
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7
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
View File

@ -432,6 +432,12 @@ static void dcn3_get_memclk_states_from_smu(struct clk_mgr *clk_mgr_base)
clk_mgr->base.ctx->dc, clk_mgr_base->bw_params);
}
static bool dcn3_is_smu_prsent(struct clk_mgr *clk_mgr_base)
{
struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base);
return clk_mgr->smu_present;
}
static bool dcn3_are_clock_states_equal(struct dc_clocks *a,
struct dc_clocks *b)
{
@ -494,6 +500,7 @@ static struct clk_mgr_funcs dcn3_funcs = {
.are_clock_states_equal = dcn3_are_clock_states_equal,
.enable_pme_wa = dcn3_enable_pme_wa,
.notify_link_rate_change = dcn30_notify_link_rate_change,
.is_smu_present = dcn3_is_smu_prsent
};
static void dcn3_init_clocks_fpga(struct clk_mgr *clk_mgr)

4
drivers/gpu/drm/amd/display/dc/core/dc.c
View File

@ -3257,6 +3257,10 @@ void dc_allow_idle_optimizations(struct dc *dc, bool allow)
if (dc->debug.disable_idle_power_optimizations)
return;
if (dc->clk_mgr->funcs->is_smu_present)
if (!dc->clk_mgr->funcs->is_smu_present(dc->clk_mgr))
return;
if (allow == dc->idle_optimizations_allowed)
return;

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

@ -262,6 +262,9 @@ struct clk_mgr_funcs {
/* Get current memclk states from PMFW, update relevant structures */
void (*get_memclk_states_from_smu)(struct clk_mgr *clk_mgr);
/* Get SMU present */
bool (*is_smu_present)(struct clk_mgr *clk_mgr);
};
struct clk_mgr {