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amd-gpu: memory barrier after waittimestamp ioctl to ensure buffers posted

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This commit is contained in:
Matt Sealey
2012-12-10 18:33:41 -06:00
parent 287a1576a6
commit 0c0087fe73
1 changed files with 1 additions and 0 deletions
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drivers/mxc/amd-gpu/gsl_kmod.c
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@@ -334,6 +334,7 @@ static int gsl_kmod_ioctl(struct inode *inode, struct file *fd, unsigned int cmd
break;
}
kgslStatus = kgsl_cmdstream_waittimestamp(param.device_id, param.timestamp, param.timeout);
rmb();
break;
}
case IOCTL_KGSL_CMDWINDOW_WRITE: