diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0224-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0224-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0224-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch b/target/linux/bcm27xx/patches-5.4/950-0224-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch deleted file mode 100644 index 1581cc0070..0000000000 --- a/target/linux/bcm27xx/patches-5.4/950-0224-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch +++ /dev/null @@ -1,52 +0,0 @@ -From f34daf3b5ae9533f88d31eef74bbf38099e96aa1 Mon Sep 17 00:00:00 2001 -From: Eric Anholt <eric@anholt.net> -Date: Mon, 14 Jan 2019 12:35:43 -0800 -Subject: [PATCH] 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 <eric@anholt.net> -(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 <linux/pm_runtime.h> -+ - #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; - } - |