media-libs/arc-mesa/files/CHROMIUM-intel-limit-urb-size-for-SKL-KBL-CFL-GT1.patch

From b1848e43d8954f39eda2e7715ff472d4128ac82e Mon Sep 17 00:00:00 2001
From: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Date: Thu, 30 Aug 2018 01:39:02 +0100
Subject: [PATCH] FROMLIST: intel: limit urb size for SKL/KBL/CFL GT1

The documentation puts the URB size for SKL GT1 as "128K - 192K". I
guess this means we can't tell which one it is, so we have to go for
the lower bound. This change also changes the max VS URB entries which
is lower on GT1 skus.

Fixes a CTS test :

  dEQP-GLES31.functional.geometry_shading.layered.render_with_default_layer_3d

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107505
Archived-At: https://lists.freedesktop.org/archives/mesa-dev/2018-August/203974.html
[chadv: Resolve backport conflicts]

[krh - Thu Feb 21 2019]
Resolve backport conflicts again - simulator_id was added upstream.
This patch didn't make 19.0, but Lionel expects to land it soon and
backport to a 19.x release.
---
 src/intel/dev/gen_device_info.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/intel/dev/gen_device_info.c b/src/intel/dev/gen_device_info.c
index 5dbd0607572..f7f4a6d21b3 100644
--- a/src/intel/dev/gen_device_info.c
+++ b/src/intel/dev/gen_device_info.c
@@ -619,7 +619,8 @@ static const struct gen_device_info gen_device_info_skl_gt1 = {
    .num_subslices = { 2, },
    .num_eu_per_subslice = 6,
    .l3_banks = 2,
-   .urb.size = 192,
+   .urb.size = 128,
+   .urb.max_entries[MESA_SHADER_VERTEX] = 928,
    .simulator_id = 12,
 };
 
@@ -686,12 +687,13 @@ static const struct gen_device_info gen_device_info_kbl_gt1 = {
    .gt = 1,
 
    .max_cs_threads = 7 * 6,
-   .urb.size = 192,
    .num_slices = 1,
    .num_subslices = { 2, },
    .num_eu_per_subslice = 6,
    .l3_banks = 2,
    .simulator_id = 16,
+   .urb.size = 128,
+   .urb.max_entries[MESA_SHADER_VERTEX] = 928,
 };
 
 static const struct gen_device_info gen_device_info_kbl_gt1_5 = {
@@ -778,7 +780,10 @@ static const struct gen_device_info gen_device_info_cfl_gt1 = {
    .num_eu_per_subslice = 6,
    .l3_banks = 2,
    .simulator_id = 24,
+   .urb.size = 128,
+   .urb.max_entries[MESA_SHADER_VERTEX] = 928,
 };
+
 static const struct gen_device_info gen_device_info_cfl_gt2 = {
    GEN9_FEATURES,
    .is_coffeelake = true,
-- 
2.20.1