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Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0580-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch')
-rw-r--r--target/linux/brcm2708/patches-4.19/950-0580-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch52
1 files changed, 0 insertions, 52 deletions
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 <eric@anholt.net>
-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 <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;
- }
-