[PATCH 1/9] drm/i915/icl: Don't allocate fixed bypass path blocks for ICL

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Mahesh Kumar <mahesh1.kumar@xxxxxxxxx>

GEN9 onwards bypass path allocation of 4 blocks was needed, as per
hardware design. ICL doesn't require bypass path allocation of 4 DDB
blocks, handling the same in this patch.

v2 (from Paulo):
  - No need for a comment that says what the code already says.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
Reviewed-by: James Ausmus <james.ausmus@xxxxxxxxx>
Signed-off-by: Mahesh Kumar <mahesh1.kumar@xxxxxxxxx>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_pm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 0b92ea1dbd40..11aac65d1543 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3778,7 +3778,8 @@ skl_ddb_get_pipe_allocation_limits(struct drm_device *dev,
 	ddb_size = INTEL_INFO(dev_priv)->ddb_size;
 	WARN_ON(ddb_size == 0);
 
-	ddb_size -= 4; /* 4 blocks for bypass path allocation */
+	if (INTEL_GEN(dev_priv) < 11)
+		ddb_size -= 4; /* 4 blocks for bypass path allocation */
 
 	/*
 	 * If the state doesn't change the active CRTC's, then there's
-- 
2.14.3

_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx




[Index of Archives]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]
  Powered by Linux