drm/amd/display: add interface to query SubVP status

[Why&How]
To enable automated testing through IGT, expose an API that is
accessible through debugfs to query current status of SubVP feature.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@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/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index 1259d6351c50b79d9ac6c229a39d4a314d324c2d..13a177d3437625cde7975976a102c219d129b410 100644 (file)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -3645,7 +3645,9 @@ static int capabilities_show(struct seq_file *m, void *unused)
        struct amdgpu_device *adev = (struct amdgpu_device *)m->private;
        struct dc *dc = adev->dm.dc;
        bool mall_supported = dc->caps.mall_size_total;
+       bool subvp_supported = dc->caps.subvp_fw_processing_delay_us;
        unsigned int mall_in_use = false;
+       unsigned int subvp_in_use = dc->cap_funcs.get_subvp_en(dc, dc->current_state);
        struct hubbub *hubbub = dc->res_pool->hubbub;
 
        if (hubbub->funcs->get_mall_en)
@@ -3653,6 +3655,8 @@ static int capabilities_show(struct seq_file *m, void *unused)
 
        seq_printf(m, "mall supported: %s, enabled: %s\n",
                           mall_supported ? "yes" : "no", mall_in_use ? "yes" : "no");
+       seq_printf(m, "sub-viewport supported: %s, enabled: %s\n",
+                          subvp_supported ? "yes" : "no", subvp_in_use ? "yes" : "no");
 
        return 0;
 }

diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 72ba62d1a01e9eb0fa0cb0e6a60937f3f08e799e..2b5c0361819bb53b235a97b53aeaea3391625e2f 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -382,6 +382,7 @@ struct dc_cap_funcs {
        bool (*get_dcc_compression_cap)(const struct dc *dc,
                        const struct dc_dcc_surface_param *input,
                        struct dc_surface_dcc_cap *output);
+       bool (*get_subvp_en)(struct dc *dc, struct dc_state *context);
 };
 
 struct link_training_settings;

diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
index 0e1d395a9340282e0c91f2402570f1899d1e9301..89b072447dba9b8be6f01bea239b96290e3fc76a 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
@@ -1993,7 +1993,8 @@ int dcn32_populate_dml_pipes_from_context(
 }
 
 static struct dc_cap_funcs cap_funcs = {
-       .get_dcc_compression_cap = dcn20_get_dcc_compression_cap
+       .get_dcc_compression_cap = dcn20_get_dcc_compression_cap,
+       .get_subvp_en = dcn32_subvp_in_use,
 };
 
 void dcn32_calculate_wm_and_dlg(struct dc *dc, struct dc_state *context,

diff --git a/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c b/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
index 7d0e5e9d611fbf3342a24e24ef05f51b22b5fd10..f7de3eca1225abd33c3b6923ef657df253f0400d 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
@@ -1571,7 +1571,8 @@ static void dcn321_destroy_resource_pool(struct resource_pool **pool)
 }
 
 static struct dc_cap_funcs cap_funcs = {
-       .get_dcc_compression_cap = dcn20_get_dcc_compression_cap
+       .get_dcc_compression_cap = dcn20_get_dcc_compression_cap,
+       .get_subvp_en = dcn32_subvp_in_use,
 };
 
 static void dcn321_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_params)