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

Imre Deak
2015-03-17T09:40:24Z

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

Signed-off-by: Damien Lespiau <damien.lespiau@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