diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_rd.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_rd.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/gpu/drm/msm/msm_rd.c b/drivers/gpu/drm/msm/msm_rd.c index b55398a34fa4..81432ec07012 100644 --- a/drivers/gpu/drm/msm/msm_rd.c +++ b/drivers/gpu/drm/msm/msm_rd.c @@ -86,7 +86,7 @@ struct msm_rd_state { struct msm_gem_submit *submit; /* fifo access is synchronized on the producer side by - * struct_mutex held by submit code (otherwise we could + * gpu->lock held by submit code (otherwise we could * end up w/ cmds logged in different order than they * were executed). And read_lock synchronizes the reads */ @@ -181,9 +181,12 @@ static int rd_open(struct inode *inode, struct file *file) uint32_t gpu_id; int ret = 0; - mutex_lock(&dev->struct_mutex); + if (!gpu) + return -ENODEV; - if (rd->open || !gpu) { + mutex_lock(&gpu->lock); + + if (rd->open) { ret = -EBUSY; goto out; } @@ -200,7 +203,7 @@ static int rd_open(struct inode *inode, struct file *file) rd_write_section(rd, RD_GPU_ID, &gpu_id, sizeof(gpu_id)); out: - mutex_unlock(&dev->struct_mutex); + mutex_unlock(&gpu->lock); return ret; } @@ -340,11 +343,10 @@ out_unlock: msm_gem_unlock(&obj->base); } -/* called under struct_mutex */ +/* called under gpu->lock */ void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit, const char *fmt, ...) { - struct drm_device *dev = submit->dev; struct task_struct *task; char msg[256]; int i, n; @@ -355,7 +357,7 @@ void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit, /* writing into fifo is serialized by caller, and * rd->read_lock is used to serialize the reads */ - WARN_ON(!mutex_is_locked(&dev->struct_mutex)); + WARN_ON(!mutex_is_locked(&submit->gpu->lock)); if (fmt) { va_list args; |