Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
Merge branch 'drm-linus' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6
+11
-5
drivers/char/drm/drm_lock.c
+11
-5
drivers/char/drm/drm_lock.c
···
104
__set_current_state(TASK_RUNNING);
105
remove_wait_queue(&dev->lock.lock_queue, &entry);
106
107
sigemptyset(&dev->sigmask);
108
sigaddset(&dev->sigmask, SIGSTOP);
109
sigaddset(&dev->sigmask, SIGTSTP);
···
120
if (dev->driver->dma_ready && (lock.flags & _DRM_LOCK_READY))
121
dev->driver->dma_ready(dev);
122
123
-
if (dev->driver->dma_quiescent && (lock.flags & _DRM_LOCK_QUIESCENT))
124
-
return dev->driver->dma_quiescent(dev);
125
126
/* dev->driver->kernel_context_switch isn't used by any of the x86
127
* drivers but is used by the Sparc driver.
···
136
dev->driver->kernel_context_switch(dev, dev->last_context,
137
lock.context);
138
}
139
-
DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock");
140
-
141
-
return ret;
142
}
143
144
/**
···
104
__set_current_state(TASK_RUNNING);
105
remove_wait_queue(&dev->lock.lock_queue, &entry);
106
107
+
DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock");
108
+
if (ret)
109
+
return ret;
110
+
111
sigemptyset(&dev->sigmask);
112
sigaddset(&dev->sigmask, SIGSTOP);
113
sigaddset(&dev->sigmask, SIGTSTP);
···
116
if (dev->driver->dma_ready && (lock.flags & _DRM_LOCK_READY))
117
dev->driver->dma_ready(dev);
118
119
+
if (dev->driver->dma_quiescent && (lock.flags & _DRM_LOCK_QUIESCENT)) {
120
+
if (dev->driver->dma_quiescent(dev)) {
121
+
DRM_DEBUG("%d waiting for DMA quiescent\n", lock.context);
122
+
return DRM_ERR(EBUSY);
123
+
}
124
+
}
125
126
/* dev->driver->kernel_context_switch isn't used by any of the x86
127
* drivers but is used by the Sparc driver.
···
128
dev->driver->kernel_context_switch(dev, dev->last_context,
129
lock.context);
130
}
131
+
return 0;
132
}
133
134
/**