diff options
| author | Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> | 2025-05-23 11:50:36 +0530 |
|---|---|---|
| committer | Animesh Manna <animesh.manna@intel.com> | 2025-05-26 13:18:15 +0530 |
| commit | 78f237a6a61b102e0b4cd0ea842861e82ec323dd (patch) | |
| tree | d39ad5a24f38fc22d8fd0f632526566dbf525c7f /drivers/gpu/drm | |
| parent | 796b6df0f8f57c40e95bd49294cf5f869eab3e9b (diff) | |
drm/i915/dsb: Add support for GOSUB interrupt
DSB raises an interrupt when there is a nested GOSUB command or
illegal Head/Tail. Add support to log such errors in the DSB
interrupt handler.
v2: Enable support only in platforms that support this (Ville)
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://lore.kernel.org/r/20250523062041.166468-7-chaitanya.kumar.borah@intel.com
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsb.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsb_regs.h | 2 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c index 04c2096df2dc..a4a996018a82 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.c +++ b/drivers/gpu/drm/i915/display/intel_dsb.c @@ -655,6 +655,9 @@ static u32 dsb_error_int_status(struct intel_display *display) if (DISPLAY_VER(display) >= 14) errors |= DSB_ATS_FAULT_INT_STATUS; + if (DISPLAY_VER(display) >= 30) + errors |= DSB_GOSUB_INT_STATUS; + return errors; } @@ -669,6 +672,9 @@ static u32 dsb_error_int_en(struct intel_display *display) if (DISPLAY_VER(display) >= 14) errors |= DSB_ATS_FAULT_INT_EN; + if (DISPLAY_VER(display) >= 30) + errors |= DSB_GOSUB_INT_EN; + return errors; } @@ -1007,4 +1013,7 @@ void intel_dsb_irq_handler(struct intel_display *display, if (errors & DSB_POLL_ERR_INT_STATUS) drm_err(display->drm, "[CRTC:%d:%s] DSB %d poll error\n", crtc->base.base.id, crtc->base.name, dsb_id); + if (errors & DSB_GOSUB_INT_STATUS) + drm_err(display->drm, "[CRTC:%d:%s] DSB %d GOSUB programming error\n", + crtc->base.base.id, crtc->base.name, dsb_id); } diff --git a/drivers/gpu/drm/i915/display/intel_dsb_regs.h b/drivers/gpu/drm/i915/display/intel_dsb_regs.h index cb6e0e5624a6..230104f36145 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb_regs.h +++ b/drivers/gpu/drm/i915/display/intel_dsb_regs.h @@ -51,11 +51,13 @@ #define DSB_RESET_SM_STATE_MASK REG_GENMASK(5, 4) #define DSB_RUN_SM_STATE_MASK REG_GENMASK(2, 0) #define DSB_INTERRUPT(pipe, id) _MMIO(DSBSL_INSTANCE(pipe, id) + 0x28) +#define DSB_GOSUB_INT_EN REG_BIT(21) /* ptl+ */ #define DSB_ATS_FAULT_INT_EN REG_BIT(20) /* mtl+ */ #define DSB_GTT_FAULT_INT_EN REG_BIT(19) #define DSB_RSPTIMEOUT_INT_EN REG_BIT(18) #define DSB_POLL_ERR_INT_EN REG_BIT(17) #define DSB_PROG_INT_EN REG_BIT(16) +#define DSB_GOSUB_INT_STATUS REG_BIT(5) /* ptl+ */ #define DSB_ATS_FAULT_INT_STATUS REG_BIT(4) /* mtl+ */ #define DSB_GTT_FAULT_INT_STATUS REG_BIT(3) #define DSB_RSPTIMEOUT_INT_STATUS REG_BIT(2) |