Mesa (master): i965: Fix broxton 2x6 l3 config

[Anuj Phogat]

Module: Mesa
Branch: master
Commit: 8521559e086a3d56f549962ab8e9f45a6a5989d8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=8521559e086a3d56f549962ab8e9f45a6a5989d8

Author: Anuj Phogat <anuj.phogat at gmail.com>
Date:   Wed Jun  7 15:47:24 2017 -0700

i965: Fix broxton 2x6 l3 config

The new table added in this patch matches with the table
in gfxspecs. We were programming the wrong values earlier.

V2: Update the comment.

Cc: "17.1" <mesa-stable at lists.freedesktop.org>
Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
Reviewed-by: Francisco Jerez <currojerez at riseup.net>

---

 src/intel/common/gen_l3_config.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/intel/common/gen_l3_config.c b/src/intel/common/gen_l3_config.c
index ae31d08bdf..150ec261a5 100644
--- a/src/intel/common/gen_l3_config.c
+++ b/src/intel/common/gen_l3_config.c
@@ -102,6 +102,20 @@ static const struct gen_l3_config chv_l3_configs[] = {
 };
 
 /**
+ * BXT 2x6 validated L3 configurations.  \sa ivb_l3_configs.
+ */
+static const struct gen_l3_config bxt_2x6_l3_configs[] = {
+   /* SLM URB ALL DC  RO  IS   C   T */
+   {{  0, 32, 48,  0,  0,  0,  0,  0 }},
+   {{  0, 32,  0,  8, 40,  0,  0,  0 }},
+   {{  0, 32,  0, 32, 16,  0,  0,  0 }},
+   {{ 16, 16, 48,  0,  0,  0,  0,  0 }},
+   {{ 16, 16,  0, 40,  8,  0,  0,  0 }},
+   {{ 16, 16,  0, 16, 32,  0,  0,  0 }},
+   {{ 0 }}
+};
+
+/**
  * Return a zero-terminated array of validated L3 configurations for the
  * specified device.
  */
@@ -117,6 +131,8 @@ get_l3_configs(const struct gen_device_info *devinfo)
 
    case 9:
    case 10:
+      if (devinfo->l3_banks == 1)
+         return bxt_2x6_l3_configs;
       return chv_l3_configs;
 
    default: