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| author | Álvaro Fernández Rojas <noltari@gmail.com> | 2019-08-09 19:50:30 +0200 |
|---|---|---|
| committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2019-08-27 11:10:01 +0200 |
| commit | 2340c646e6a5da658e114be2f721ff90853588d4 (patch) | |
| tree | df9744d2344e71e8c5d1b75c3e1528bc474313fe /target/linux/brcm2708/patches-4.19/950-0572-drm-v3d-Drop-the-wait-for-L2T-flush-to-complete.patch | |
| parent | 81d0da118694feb874f992093063a2852285d194 (diff) | |
| download | upstream-2340c646e6a5da658e114be2f721ff90853588d4.tar.gz upstream-2340c646e6a5da658e114be2f721ff90853588d4.tar.bz2 upstream-2340c646e6a5da658e114be2f721ff90853588d4.zip | |
brcm2708: update to latest patches from RPi foundation
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0572-drm-v3d-Drop-the-wait-for-L2T-flush-to-complete.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0572-drm-v3d-Drop-the-wait-for-L2T-flush-to-complete.patch | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0572-drm-v3d-Drop-the-wait-for-L2T-flush-to-complete.patch b/target/linux/brcm2708/patches-4.19/950-0572-drm-v3d-Drop-the-wait-for-L2T-flush-to-complete.patch deleted file mode 100644 index 30f708f31e..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0572-drm-v3d-Drop-the-wait-for-L2T-flush-to-complete.patch +++ /dev/null @@ -1,41 +0,0 @@ -From be7e9e3b29166df5f2e5a06fc94c2aa07c414c4e Mon Sep 17 00:00:00 2001 -From: Eric Anholt <eric@anholt.net> -Date: Mon, 3 Dec 2018 14:24:36 -0800 -Subject: [PATCH 572/725] drm/v3d: Drop the wait for L2T flush to complete. - -According to Dave, once you've started an L2T flush, all L2T accesses -will be blocked until the flush completes. This fixes a consistent -3-4ms stall between the ioctl and running the job, and 3DMMES Taiji -goes from 27fps to 110fps. - -v2: Leave a note about why we don't need to wait for completion. - -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/20181203222438.25417-4-eric@anholt.net -(cherry picked from commit 51c1b6f9eb3dbdec91b0e3c89f623e634c996bbb) ---- - drivers/gpu/drm/v3d/v3d_gem.c | 8 ++++---- - 1 file changed, 4 insertions(+), 4 deletions(-) - ---- a/drivers/gpu/drm/v3d/v3d_gem.c -+++ b/drivers/gpu/drm/v3d/v3d_gem.c -@@ -143,13 +143,13 @@ v3d_invalidate_l2(struct v3d_dev *v3d, i - static void - v3d_flush_l2t(struct v3d_dev *v3d, int core) - { -+ /* While there is a busy bit (V3D_L2TCACTL_L2TFLS), we don't -+ * need to wait for completion before dispatching the job -- -+ * L2T accesses will be stalled until the flush has completed. -+ */ - V3D_CORE_WRITE(core, V3D_CTL_L2TCACTL, - V3D_L2TCACTL_L2TFLS | - V3D_SET_FIELD(V3D_L2TCACTL_FLM_FLUSH, V3D_L2TCACTL_FLM)); -- if (wait_for(!(V3D_CORE_READ(core, V3D_CTL_L2TCACTL) & -- V3D_L2TCACTL_L2TFLS), 100)) { -- DRM_ERROR("Timeout waiting for L2T flush\n"); -- } - } - - /* Invalidates the slice caches. These are read-only caches. */ |