[Public]
> -----Original Message-----
> From: Sui Jingfeng <suijingf...@loongson.cn>
> Sent: Sunday, June 11, 2023 11:24 AM
> To: Wentland, Harry <harry.wentl...@amd.com>; Li, Sun peng (Leo)
> <sunpeng...@amd.com>; Siqueira, Rodrigo <rodrigo.sique...@amd.com>;
> Deucher, Alexander <alexander.deuc...@amd.com>; Koenig, Christian
> <christian.koe...@amd.com>; Pan, Xinhui <xinhui....@amd.com>; David
> Airlie <airl...@gmail.com>; Daniel Vetter <dan...@ffwll.ch>; Lee, Alvin
> <alvin.l...@amd.com>; Lei, Jun <jun....@amd.com>; Zhuo, Qingqing (Lillian)
> <qingqing.z...@amd.com>; Liu, Wenjing <wenjing....@amd.com>; Tam,
> Samson <samson....@amd.com>; Varone, Dillon
> <dillon.var...@amd.com>; Liu, HaoPing (Alan) <haoping....@amd.com>
> Cc: amd-gfx@lists.freedesktop.org; dri-de...@lists.freedesktop.org; linux-
> ker...@vger.kernel.org
> Subject: [PATCH v2] drm/amdgpu: Add error reporting code for the display
> core
>
> [why]
>
> Because the drm/amdgpu drivers do not work with Navi 10 [RX 5700] series
> GPUs on non-x86 platforms, this patch helps find out where the drivers fail.
> After applying his patch, the following error message can be found:
>
> [drm:dc_create [amdgpu]] *ERROR* dc_construct: failed to create resource
> pool [drm:dc_create [amdgpu]] *ERROR* dc_create: dc construct failed [drm]
> Display Core failed to initialize with v3.2.230!
Curious what the failure was on your platform. Resource create is mostly just
allocating structures.
Alex
>
> Signed-off-by: Sui Jingfeng <suijingf...@loongson.cn>
> ---
> drivers/gpu/drm/amd/display/dc/core/dc.c | 29 ++++++++++++++++--------
> 1 file changed, 20 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c
> b/drivers/gpu/drm/amd/display/dc/core/dc.c
> index 52564b93f7eb..d33b78aa3e58 100644
> --- a/drivers/gpu/drm/amd/display/dc/core/dc.c
> +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
> @@ -951,7 +951,7 @@ static bool dc_construct(struct dc *dc,
> goto fail;
> }
>
> - dc_ctx = dc->ctx;
> + dc_ctx = dc->ctx;
>
> /* Resource should construct all asic specific resources.
> * This should be the only place where we need to parse the asic id
> @@ -990,16 +990,21 @@ static bool dc_construct(struct dc *dc,
> }
>
> dc->res_pool = dc_create_resource_pool(dc, init_params, dc_ctx-
> >dce_version);
> - if (!dc->res_pool)
> + if (!dc->res_pool) {
> + dm_error("%s: failed to create resource pool\n", __func__);
> goto fail;
> + }
>
> /* set i2c speed if not done by the respective dcnxxx__resource.c */
> if (dc->caps.i2c_speed_in_khz_hdcp == 0)
> dc->caps.i2c_speed_in_khz_hdcp = dc-
> >caps.i2c_speed_in_khz;
>
> dc->clk_mgr = dc_clk_mgr_create(dc->ctx, dc->res_pool->pp_smu, dc-
> >res_pool->dccg);
> - if (!dc->clk_mgr)
> + if (!dc->clk_mgr) {
> + dm_error("%s: failed to create clk manager\n", __func__);
> goto fail;
> + }
> +
> #ifdef CONFIG_DRM_AMD_DC_FP
> dc->clk_mgr->force_smu_not_present = init_params-
> >force_smu_not_present;
>
> @@ -1022,14 +1027,18 @@ static bool dc_construct(struct dc *dc,
> goto fail;
> }
>
> - if (!create_links(dc, init_params->num_virtual_links))
> + if (!create_links(dc, init_params->num_virtual_links)) {
> + dm_error("%s: failed to create links\n", __func__);
> goto fail;
> + }
>
> /* Create additional DIG link encoder objects if fewer than the
> platform
> * supports were created during link construction.
> */
> - if (!create_link_encoders(dc))
> + if (!create_link_encoders(dc)) {
> + dm_error("%s: failed to create link encoders\n", __func__);
> goto fail;
> + }
>
> dc_resource_state_construct(dc, dc->current_state);
>
> @@ -1314,11 +1323,15 @@ struct dc *dc_create(const struct dc_init_data
> *init_params)
> return NULL;
>
> if (init_params->dce_environment == DCE_ENV_VIRTUAL_HW) {
> - if (!dc_construct_ctx(dc, init_params))
> + if (!dc_construct_ctx(dc, init_params)) {
> + DC_LOG_ERROR("%s: dc construct failed\n",
> __func__);
> goto destruct_dc;
> + }
> } else {
> - if (!dc_construct(dc, init_params))
> + if (!dc_construct(dc, init_params)) {
> + DC_LOG_ERROR("%s: dc construct failed\n",
> __func__);
> goto destruct_dc;
> + }
>
> full_pipe_count = dc->res_pool->pipe_count;
> if (dc->res_pool->underlay_pipe_index !=
> NO_UNDERLAY_PIPE) @@ -1349,8 +1362,6 @@ struct dc *dc_create(const
> struct dc_init_data *init_params)
>
> DC_LOG_DC("Display Core initialized\n");
>
> -
> -
> return dc;
>
> destruct_dc:
> --
> 2.25.1
