From 5c9ed8309493acb099463d25b32fabb5b7c004af Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 17 Aug 2004 13:10:05 +0000 Subject: Merged drmfntbl-0-0-1 --- linux-core/ffb_context.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) (limited to 'linux-core/ffb_context.c') diff --git a/linux-core/ffb_context.c b/linux-core/ffb_context.c index ffc9b090..add2a743 100644 --- a/linux-core/ffb_context.c +++ b/linux-core/ffb_context.c @@ -537,3 +537,63 @@ int DRM(rmctx)(struct inode *inode, struct file *filp, unsigned int cmd, } return 0; } + +static void ffb_driver_release(drm_device_t *dev) +{ + ffb_dev_priv_t *fpriv = (ffb_dev_priv_t *) dev->dev_private; + int context = _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock); + int idx; + + idx = context - 1; + if (fpriv && + context != DRM_KERNEL_CONTEXT && + fpriv->hw_state[idx] != NULL) { + kfree(fpriv->hw_state[idx]); + fpriv->hw_state[idx] = NULL; + } +} + +static int ffb_driver_presetup(drm_device_t *dev) +{ + int ret; + ret = ffb_presetup(dev); + if (_ret != 0) return ret; +} + +static void ffb_driver_pretakedown(drm_device_t *dev) +{ + if (dev->dev_private) kfree(dev->dev_private); +} + +static void ffb_driver_postcleanup(drm_device_t *dev) +{ + if (ffb_position != NULL) kfree(ffb_position); +} + +static int ffb_driver_kernel_context_switch_unlock(struct drm_device *dev) +{ + dev->lock.filp = 0; + { + __volatile__ unsigned int *plock = &dev->lock.hw_lock->lock; + unsigned int old, new, prev, ctx; + + ctx = lock.context; + do { + old = *plock; + new = ctx; + prev = cmpxchg(plock, old, new); + } while (prev != old); + } + wake_up_interruptible(&dev->lock.lock_queue); +} + +static void ffb_driver_register_fns(drm_device_t *dev) +{ + DRM(fops).get_unmapped_area = ffb_get_unmapped_area; + dev->fn_tbl.release = ffb_driver_release; + dev->fn_tbl.presetup = ffb_driver_presetup; + dev->fn_tbl.pretakedown = ffb_driver_pretakedown; + dev->fn_tbl.postcleanup = ffb_driver_postcleanup; + dev->fn_tbl.kernel_context_switch = ffb_context_switch; + dev->fn_tbl.kernel_context_switch_unlock = ffb_driver_kernel_context_switch_unlock; +} -- cgit v1.2.3