mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 06:57:57 +00:00
44 lines
1.5 KiB
Diff
44 lines
1.5 KiB
Diff
From 4a6410a53059d6505680b70fc438b7cfbf8939ca Mon Sep 17 00:00:00 2001
|
|
From: Eric Anholt <eric@anholt.net>
|
|
Date: Mon, 3 Dec 2018 14:24:35 -0800
|
|
Subject: [PATCH 568/806] drm/v3d: Don't bother flushing L1TD at job start.
|
|
|
|
This is the write combiner for TMU writes. You're supposed to flush
|
|
that at job end if you had dirtied any cachelines. Flushing it at job
|
|
start then doesn't make any sense.
|
|
|
|
Signed-off-by: Eric Anholt <eric@anholt.net>
|
|
Fixes: 57692c94dcbe ("drm/v3d: Introduce a new DRM driver for Broadcom V3D V3.x+")
|
|
Reviewed-by: Dave Emett <david.emett@broadcom.com>
|
|
Link: https://patchwork.freedesktop.org/patch/msgid/20181203222438.25417-3-eric@anholt.net
|
|
(cherry picked from commit 2e6dc3bd80478212e84addf1cafd6ec60674b884)
|
|
---
|
|
drivers/gpu/drm/v3d/v3d_gem.c | 12 ------------
|
|
1 file changed, 12 deletions(-)
|
|
|
|
--- a/drivers/gpu/drm/v3d/v3d_gem.c
|
|
+++ b/drivers/gpu/drm/v3d/v3d_gem.c
|
|
@@ -139,22 +139,10 @@ v3d_invalidate_l2(struct v3d_dev *v3d, i
|
|
V3D_L2CACTL_L2CENA);
|
|
}
|
|
|
|
-static void
|
|
-v3d_invalidate_l1td(struct v3d_dev *v3d, int core)
|
|
-{
|
|
- V3D_CORE_WRITE(core, V3D_CTL_L2TCACTL, V3D_L2TCACTL_TMUWCF);
|
|
- if (wait_for(!(V3D_CORE_READ(core, V3D_CTL_L2TCACTL) &
|
|
- V3D_L2TCACTL_L2TFLS), 100)) {
|
|
- DRM_ERROR("Timeout waiting for L1T write combiner flush\n");
|
|
- }
|
|
-}
|
|
-
|
|
/* Invalidates texture L2 cachelines */
|
|
static void
|
|
v3d_flush_l2t(struct v3d_dev *v3d, int core)
|
|
{
|
|
- v3d_invalidate_l1td(v3d, core);
|
|
-
|
|
V3D_CORE_WRITE(core, V3D_CTL_L2TCACTL,
|
|
V3D_L2TCACTL_L2TFLS |
|
|
V3D_SET_FIELD(V3D_L2TCACTL_FLM_FLUSH, V3D_L2TCACTL_FLM));
|