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drm/i915/psr: Add new debug bit to disable Panel Replay

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Add new debug bit to be used with i915_edp_psr_debug debugfs
interface. This can be used to disable Panel Replay.

v2: ensure that fastset is performed when the bit changes

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240618053026.3268759-8-jouni.hogander@intel.com
This commit is contained in:
Jouni Högander 2024-06-18 08:30:24 +03:00
parent 3ec391a007
commit c52a3187a1
2 changed files with 9 additions and 3 deletions
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1
drivers/gpu/drm/i915/display/intel_display_types.h
View File

@ -1703,6 +1703,7 @@ struct intel_psr {
#define I915_PSR_DEBUG_ENABLE_SEL_FETCH 0x4
#define I915_PSR_DEBUG_IRQ 0x10
#define I915_PSR_DEBUG_SU_REGION_ET_DISABLE 0x20
#define I915_PSR_DEBUG_PANEL_REPLAY_DISABLE 0x40
u32 debug;
bool sink_support;

11
drivers/gpu/drm/i915/display/intel_psr.c
View File

@ -249,7 +249,8 @@ static bool panel_replay_global_enabled(struct intel_dp *intel_dp)
{
struct drm_i915_private *i915 = dp_to_i915(intel_dp);
if (i915->display.params.enable_psr != -1)
if ((i915->display.params.enable_psr != -1) ||
(intel_dp->psr.debug & I915_PSR_DEBUG_PANEL_REPLAY_DISABLE))
return false;
return true;
}
@ -2788,11 +2789,13 @@ int intel_psr_debug_set(struct intel_dp *intel_dp, u64 val)
{
struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
const u32 mode = val & I915_PSR_DEBUG_MODE_MASK;
const u32 disable_bits = val & I915_PSR_DEBUG_SU_REGION_ET_DISABLE;
const u32 disable_bits = val & (I915_PSR_DEBUG_SU_REGION_ET_DISABLE |
I915_PSR_DEBUG_PANEL_REPLAY_DISABLE);
u32 old_mode, old_disable_bits;
int ret;
if (val & ~(I915_PSR_DEBUG_IRQ | I915_PSR_DEBUG_SU_REGION_ET_DISABLE |
I915_PSR_DEBUG_PANEL_REPLAY_DISABLE |
I915_PSR_DEBUG_MODE_MASK) ||
mode > I915_PSR_DEBUG_ENABLE_SEL_FETCH) {
drm_dbg_kms(&dev_priv->drm, "Invalid debug mask %llx\n", val);
@ -2805,7 +2808,9 @@ int intel_psr_debug_set(struct intel_dp *intel_dp, u64 val)
old_mode = intel_dp->psr.debug & I915_PSR_DEBUG_MODE_MASK;
old_disable_bits = intel_dp->psr.debug &
I915_PSR_DEBUG_SU_REGION_ET_DISABLE;
(I915_PSR_DEBUG_SU_REGION_ET_DISABLE |
I915_PSR_DEBUG_PANEL_REPLAY_DISABLE);
intel_dp->psr.debug = val;
/*