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DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Aug 2023 06:07:24.1279 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f09c949c-811f-4ac6-b1f9-08db9e1f0f67 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: MWH0EPF000971E3.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB7672 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: stylon.wang@amd.com, Sunpeng.Li@amd.com, Harry.Wentland@amd.com, qingqing.zhuo@amd.com, Rodrigo.Siqueira@amd.com, roman.li@amd.com, solomon.chiu@amd.com, Aurabindo Pillai , Hersen Wu , wayne.lin@amd.com, Bhawanpreet.Lakha@amd.com, agustin.gutierrez@amd.com, pavle.kotarac@amd.com Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" From: Aurabindo Pillai [Why&How] Export a debugfs file to report whether MALL cache is supported by the asic or not. Reviewed-by: Hersen Wu Acked-by: Wayne Lin Signed-off-by: Aurabindo Pillai --- .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) 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 7c21e21bcc51..b5f3b33b625d 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c @@ -3605,6 +3605,23 @@ static int disable_hpd_get(void *data, u64 *val) DEFINE_DEBUGFS_ATTRIBUTE(disable_hpd_ops, disable_hpd_get, disable_hpd_set, "%llu\n"); +/* + * Returns 1 if hardware supports MALL cache + * 0 otherwise. + */ +static int capabilities_show(struct seq_file *m, void *unused) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)m->private; + struct dc_caps caps = adev->dm.dc->caps; + bool mall_supported = caps.mall_size_total; + + seq_printf(m, "mall: %s\n", mall_supported ? "yes" : "no"); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(capabilities); + /* * Temporary w/a to force sst sequence in M42D DP2 mst receiver * Example usage: echo 1 > /sys/kernel/debug/dri/0/amdgpu_dm_dp_set_mst_en_for_sst @@ -3798,6 +3815,8 @@ void dtn_debugfs_init(struct amdgpu_device *adev) debugfs_create_file("amdgpu_mst_topology", 0444, root, adev, &mst_topo_fops); + debugfs_create_file("amdgpu_dm_capabilities", 0444, root, + adev, &capabilities_fops); debugfs_create_file("amdgpu_dm_dtn_log", 0644, root, adev, &dtn_log_fops); debugfs_create_file("amdgpu_dm_dp_set_mst_en_for_sst", 0644, root, adev, -- 2.37.3