X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0580-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch;fp=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0580-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch;h=0000000000000000000000000000000000000000;hb=67dcc43f3a22dc3a7ac07a7065971b426feeb043;hp=ea5044c1f7c16fba61559bd9dbdd1e8d6c9b6fa7;hpb=47a93a810f78adce5a130d287f82b28e9b54313c;p=openwrt%2Fstaging%2Fchunkeey.git diff --git a/target/linux/brcm2708/patches-4.19/950-0580-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch b/target/linux/brcm2708/patches-4.19/950-0580-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch deleted file mode 100644 index ea5044c1f7..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0580-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch +++ /dev/null @@ -1,52 +0,0 @@ -From f389abea861f9bd3165f98a8d3a1f3407e9fc01a Mon Sep 17 00:00:00 2001 -From: Eric Anholt -Date: Mon, 14 Jan 2019 12:35:43 -0800 -Subject: [PATCH 580/806] drm/v3d: Skip MMU flush if the device is currently - off. - -If it's off, we know it will be reset on poweron, so the MMU won't -have any TLB cached from before this point. Avoids failed waits for -MMU flush to reply. - -Signed-off-by: Eric Anholt -(cherry picked from commit 3ee4e2e0a9e9587eacbb69b067bbc72ab2cdc47b) ---- - drivers/gpu/drm/v3d/v3d_mmu.c | 13 +++++++++++++ - 1 file changed, 13 insertions(+) - ---- a/drivers/gpu/drm/v3d/v3d_mmu.c -+++ b/drivers/gpu/drm/v3d/v3d_mmu.c -@@ -18,6 +18,8 @@ - * each client. This is not yet implemented. - */ - -+#include -+ - #include "v3d_drv.h" - #include "v3d_regs.h" - -@@ -34,6 +36,14 @@ static int v3d_mmu_flush_all(struct v3d_ - { - int ret; - -+ /* Keep power on the device on until we're done with this -+ * call, but skip the flush if the device is off and will be -+ * reset when powered back on. -+ */ -+ ret = pm_runtime_get_if_in_use(v3d->dev); -+ if (ret == 0) -+ return 0; -+ - /* Make sure that another flush isn't already running when we - * start this one. - */ -@@ -61,6 +71,9 @@ static int v3d_mmu_flush_all(struct v3d_ - if (ret) - dev_err(v3d->dev, "MMUC flush wait idle failed\n"); - -+ pm_runtime_mark_last_busy(v3d->dev); -+ pm_runtime_put_autosuspend(v3d->dev); -+ - return ret; - } -