On 12-03-2026 08:40, Kandpal, Suraj wrote:
Subject: [PATCH 1/2] drm/i915/dmc: Remove invalid PIPEDMC interrupt bits
On display version 35+ PIPEDMC_ATS_FAULT and PIPEDMC_GTT_FAULT
interrupt bits are no longer defined.
Update the interrupt mask to drop these.
Add the Bspec link for register in commit message
so that reviewer can verify this if required in this case.
Bspec: 70296
I will add Bspec number.
Regards,
Dibin
Otherwise LGTM,
Reviewed-by: Suraj Kandpal <[email protected]>
Signed-off-by: Dibin Moolakadan Subrahmanian
<[email protected]>
---
drivers/gpu/drm/i915/display/intel_dmc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c
b/drivers/gpu/drm/i915/display/intel_dmc.c
index c3b411259a0c..38b284a0db82 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc.c
+++ b/drivers/gpu/drm/i915/display/intel_dmc.c
@@ -509,6 +509,9 @@ static void pipedmc_clock_gating_wa(struct
intel_display *display, bool enable)
static u32 pipedmc_interrupt_mask(struct intel_display *display) {
+ if (DISPLAY_VER(display) >= 35)
+ return PIPEDMC_FLIPQ_PROG_DONE;
+
/*
* FIXME PIPEDMC_ERROR not enabled for now due to LNL pipe B
* triggering it during the first DC state transition. Figure
--
2.43.0
