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authorHamza Mahfooz <hamza.mahfooz@amd.com>2024-02-08 16:23:29 -0500
committerAlex Deucher <alexander.deucher@amd.com>2024-02-12 16:10:24 -0500
commitfc184dbe9fd99ad2dfb197b6fe18768bae1774b1 (patch)
tree53ae8c375688e083e9b12271caa0641fe1bf3cf1 /drivers/gpu/drm/amd/amdgpu
parentb6d1a06320519ac3bfda6ce81067a1bc409b9cff (diff)
drm/amdgpu: make damage clips support configurable
We have observed that there are quite a number of PSR-SU panels on the market that are unable to keep up with what user space throws at them, resulting in hangs and random black screens. So, make damage clips support configurable and disable it by default for PSR-SU displays. Cc: stable@vger.kernel.org Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu.h1
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c13
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 312dfaec7b4a..1291b8eb9dff 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -198,6 +198,7 @@ extern uint amdgpu_dc_debug_mask;
extern uint amdgpu_dc_visual_confirm;
extern uint amdgpu_dm_abm_level;
extern int amdgpu_backlight;
+extern int amdgpu_damage_clips;
extern struct amdgpu_mgpu_info mgpu_info;
extern int amdgpu_ras_enable;
extern uint amdgpu_ras_mask;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 161ecf9b4174..6ef7f22c1152 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -211,6 +211,7 @@ int amdgpu_seamless = -1; /* auto */
uint amdgpu_debug_mask;
int amdgpu_agp = -1; /* auto */
int amdgpu_wbrf = -1;
+int amdgpu_damage_clips = -1; /* auto */
static void amdgpu_drv_delayed_reset_work_handler(struct work_struct *work);
@@ -860,6 +861,18 @@ MODULE_PARM_DESC(backlight, "Backlight control (0 = pwm, 1 = aux, -1 auto (defau
module_param_named(backlight, amdgpu_backlight, bint, 0444);
/**
+ * DOC: damageclips (int)
+ * Enable or disable damage clips support. If damage clips support is disabled,
+ * we will force full frame updates, irrespective of what user space sends to
+ * us.
+ *
+ * Defaults to -1 (where it is enabled unless a PSR-SU display is detected).
+ */
+MODULE_PARM_DESC(damageclips,
+ "Damage clips support (0 = disable, 1 = enable, -1 auto (default))");
+module_param_named(damageclips, amdgpu_damage_clips, int, 0444);
+
+/**
* DOC: tmz (int)
* Trusted Memory Zone (TMZ) is a method to protect data being written
* to or read from memory.