[PATCH 20/42] drm/amd/display: Enabling PSR on DCN30 on driver side

[Aurabindo Pillai]

From: Zhan Liu <zhan....@amd.com>

[Why]
PSR needs to be enabled on DCN30. This is the driver part of PSR
enablement.

Also disabled retired DMCU on driver side, since DMCU is
not supported on DCN30 anymore.

[How]
Add necessary changes to enable PSR on DCN30.

Signed-off-by: Zhan Liu <zhan....@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pil...@amd.com>
---
 .../drm/amd/display/dc/dcn30/dcn30_resource.c  | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c 
b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
index 6746d582d723..88f23f12aeb8 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
@@ -79,6 +79,7 @@
 
 #include "reg_helper.h"
 #include "dce/dmub_abm.h"
+#include "dce/dmub_psr.h"
 #include "dce/dce_aux.h"
 #include "dce/dce_i2c.h"
 
@@ -832,7 +833,7 @@ static const struct dc_plane_cap plane_cap = {
 };
 
 static const struct dc_debug_options debug_defaults_drv = {
-       .disable_dmcu = true,
+       .disable_dmcu = true, //No DMCU on DCN30
        .force_abm_enable = false,
        .timing_trace = false,
        .clock_trace = true,
@@ -849,10 +850,11 @@ static const struct dc_debug_options debug_defaults_drv = 
{
        .underflow_assert_delay_us = 0xFFFFFFFF,
        .dwb_fi_phase = -1, // -1 = disable,
        .dmub_command_table = true,
+       .disable_psr = false,
 };
 
 static const struct dc_debug_options debug_defaults_diags = {
-       .disable_dmcu = true,
+       .disable_dmcu = true, //No dmcu on DCN30
        .force_abm_enable = false,
        .timing_trace = true,
        .clock_trace = true,
@@ -865,6 +867,7 @@ static const struct dc_debug_options debug_defaults_diags = 
{
        .scl_reset_length10 = true,
        .dwb_fi_phase = -1, // -1 = disable
        .dmub_command_table = true,
+       .disable_psr = true,
        .enable_tri_buf = true,
 };
 
@@ -1313,6 +1316,9 @@ static void dcn30_resource_destruct(struct 
dcn30_resource_pool *pool)
                        dce_abm_destroy(&pool->base.multiple_abms[i]);
        }
 
+       if (pool->base.psr != NULL)
+               dmub_psr_destroy(&pool->base.psr);
+
        if (pool->base.dccg != NULL)
                dcn_dccg_destroy(&pool->base.dccg);
 }
@@ -2624,6 +2630,14 @@ static bool dcn30_resource_construct(
                }
        }
        pool->base.timing_generator_count = i;
+       /* PSR */
+       pool->base.psr = dmub_psr_create(ctx);
+
+       if (pool->base.psr == NULL) {
+               dm_error("DC: failed to create PSR obj!\n");
+               BREAK_TO_DEBUGGER();
+               goto create_fail;
+       }
 
        /* ABM */
        for (i = 0; i < pool->base.res_cap->num_timing_generator; i++) {
-- 
2.25.1

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