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authorThomas Zimmermann <tzimmermann@suse.de>2020-08-12 19:17:18 +0200
committerThomas Zimmermann <tzimmermann@suse.de>2020-08-12 20:42:08 +0200
commit534b1f9071d95325044c21d47d9f63a45cdf425e (patch)
tree5c2aa3cd65bfb6b9e73d9ad22c021d800380f0f6 /drivers/gpu/host1x/debug.c
parentdrm/radeon: drop superflous AGP handling (diff)
parentdrm/ttm: revert "drm/ttm: make TT creation purely optional v3" (diff)
downloadlinux-534b1f9071d95325044c21d47d9f63a45cdf425e.tar.xz
linux-534b1f9071d95325044c21d47d9f63a45cdf425e.zip
Merge drm/drm-next into drm-misc-next
Backmerging drm-next into drm-misc-next for nouveau and panel updates. Resolves a conflict between ttm and nouveau, where struct ttm_mem_res got renamed to struct ttm_resource. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'drivers/gpu/host1x/debug.c')
-rw-r--r--drivers/gpu/host1x/debug.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/host1x/debug.c b/drivers/gpu/host1x/debug.c
index c0392672a842..1b4997bda1c7 100644
--- a/drivers/gpu/host1x/debug.c
+++ b/drivers/gpu/host1x/debug.c
@@ -16,6 +16,8 @@
#include "debug.h"
#include "channel.h"
+static DEFINE_MUTEX(debug_lock);
+
unsigned int host1x_debug_trace_cmdbuf;
static pid_t host1x_debug_force_timeout_pid;
@@ -52,12 +54,14 @@ static int show_channel(struct host1x_channel *ch, void *data, bool show_fifo)
struct output *o = data;
mutex_lock(&ch->cdma.lock);
+ mutex_lock(&debug_lock);
if (show_fifo)
host1x_hw_show_channel_fifo(m, ch, o);
host1x_hw_show_channel_cdma(m, ch, o);
+ mutex_unlock(&debug_lock);
mutex_unlock(&ch->cdma.lock);
return 0;