[Intel-gfx] [PATCH 08/49] drm/i915/bxt: Broxton DDB is 512 blocks

Imre Deak imre.deak at intel.com
Tue Mar 17 02:39:34 PDT 2015


From: Damien Lespiau <damien.lespiau at intel.com>

Signed-off-by: Damien Lespiau <damien.lespiau at intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 288c9d2..b89ab4d 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2538,6 +2538,7 @@ static bool ilk_disable_lp_wm(struct drm_device *dev)
  */
 
 #define SKL_DDB_SIZE		896	/* in blocks */
+#define BXT_DDB_SIZE		512
 
 static void
 skl_ddb_get_pipe_allocation_limits(struct drm_device *dev,
@@ -2556,7 +2557,10 @@ skl_ddb_get_pipe_allocation_limits(struct drm_device *dev,
 		return;
 	}
 
-	ddb_size = SKL_DDB_SIZE;
+	if (IS_BROXTON(dev))
+		ddb_size = BXT_DDB_SIZE;
+	else
+		ddb_size = SKL_DDB_SIZE;
 
 	ddb_size -= 4; /* 4 blocks for bypass path allocation */
 
-- 
2.1.0



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