[RFC PATCH 04/11] drm/i915/dmc: Add PIPEDMC_BLOCK_PKGC_SW definitions

Jouni Högander jouni.hogander at intel.com
Fri Mar 7 10:52:30 UTC 2025


We need PIPEDMC_BLOCK_PKGC_SW definitions to implement workaround for
underrun on idle PSR HW issue (Wa_16025596647). Add PIPEDMC_BLOCK_PKGC_SW
register definitions.

Bspec: 71265

Signed-off-by: Jouni Högander <jouni.hogander at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dmc_regs.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_dmc_regs.h b/drivers/gpu/drm/i915/display/intel_dmc_regs.h
index 2f1e3cb1a247..e16ea3f16ed8 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc_regs.h
+++ b/drivers/gpu/drm/i915/display/intel_dmc_regs.h
@@ -27,6 +27,14 @@
 						   _MTL_PIPEDMC_EVT_CTL_4_A, \
 						   _MTL_PIPEDMC_EVT_CTL_4_B)
 
+#define PIPEDMC_BLOCK_PKGC_SW_A	0x5f1d0
+#define PIPEDMC_BLOCK_PKGC_SW_B	0x5F5d0
+#define PIPEDMC_BLOCK_PKGC_SW(pipe)				_MMIO_PIPE(pipe, \
+									   PIPEDMC_BLOCK_PKGC_SW_A, \
+									   PIPEDMC_BLOCK_PKGC_SW_B)
+#define PIPEDMC_BLOCK_PKGC_SW_BLOCK_PKGC_ALWAYS			BIT(31)
+#define PIPEDMC_BLOCK_PKGC_SW_BLOCK_PKGC_UNTIL_NEXT_FRAMESTART	BIT(15)
+
 #define _ADLP_PIPEDMC_REG_MMIO_BASE_A	0x5f000
 #define _TGL_PIPEDMC_REG_MMIO_BASE_A	0x92000
 
-- 
2.43.0



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