blob: 7563f33ee83350a54c2ef70139d8cee8d814f537 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
From f57845691b2419259210ddc7c18fd54240199567 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Fri, 23 Oct 2015 12:33:43 +0100
Subject: [PATCH 099/381] drm/vc4: Remove extra barrier()s aroudn CTnCA/CTnEA
setup.
The writel() that these expand to already does barriers.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/vc4/vc4_gem.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -104,14 +104,11 @@ submit_cl(struct drm_device *dev, uint32
{
struct vc4_dev *vc4 = to_vc4_dev(dev);
- V3D_WRITE(V3D_CTNCA(thread), start);
- barrier();
-
- /* Set the end address of the control list. Writing this
- * register is what starts the job.
+ /* Set the current and end address of the control list.
+ * Writing the end register is what starts the job.
*/
+ V3D_WRITE(V3D_CTNCA(thread), start);
V3D_WRITE(V3D_CTNEA(thread), end);
- barrier();
}
int
|
