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-rw-r--r--linux/i810_drv.c141
1 files changed, 105 insertions, 36 deletions
diff --git a/linux/i810_drv.c b/linux/i810_drv.c
index f33153a3..d3b35c49 100644
--- a/linux/i810_drv.c
+++ b/linux/i810_drv.c
@@ -33,11 +33,13 @@
#define EXPORT_SYMTAB
#include "drmP.h"
#include "i810_drv.h"
+
+
EXPORT_SYMBOL(i810_init);
EXPORT_SYMBOL(i810_cleanup);
#define I810_NAME "i810"
-#define I810_DESC "Matrox g200/g400"
+#define I810_DESC "Intel I810"
#define I810_DATE "19991213"
#define I810_MAJOR 0
#define I810_MINOR 0
@@ -54,6 +56,7 @@ static struct file_operations i810_fops = {
mmap: drm_mmap,
read: drm_read,
fasync: drm_fasync,
+ poll: drm_poll,
};
static struct miscdevice i810_misc = {
@@ -80,13 +83,13 @@ static drm_ioctl_desc_t i810_ioctls[] = {
[DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { i810_mapbufs, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { i810_freebufs, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { drm_addctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { drm_rmctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { drm_modctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { drm_getctx, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { drm_switchctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { drm_newctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { drm_resctx, 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { i810_addctx, 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { i810_rmctx, 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { i810_modctx, 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { i810_getctx, 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { i810_switchctx, 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { i810_newctx, 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { i810_resctx, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { drm_adddraw, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { drm_rmdraw, 1, 1 },
@@ -104,6 +107,11 @@ static drm_ioctl_desc_t i810_ioctls[] = {
[DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = { drm_agp_free, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = { drm_agp_bind, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = { drm_agp_unbind, 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_I810_INIT)] = { i810_dma_init, 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_I810_VERTEX)] = { i810_dma_vertex, 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_I810_DMA)] = { i810_dma_general,1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_I810_FLUSH)] = { i810_flush_ioctl,1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_I810_GETAGE)] = { i810_getage, 1, 0 },
};
#define I810_IOCTL_COUNT DRM_ARRAY_SIZE(i810_ioctls)
@@ -121,7 +129,7 @@ MODULE_PARM(i810, "s");
int init_module(void)
{
- printk("doing i810_init()\n");
+ DRM_DEBUG("doing i810_init()\n");
return i810_init();
}
@@ -364,7 +372,7 @@ int i810_init(void)
#ifdef MODULE
drm_parse_options(i810);
#endif
- printk("doing misc_register\n");
+ DRM_DEBUG("doing misc_register\n");
if ((retcode = misc_register(&i810_misc))) {
DRM_ERROR("Cannot register \"%s\"\n", I810_NAME);
return retcode;
@@ -372,13 +380,22 @@ int i810_init(void)
dev->device = MKDEV(MISC_MAJOR, i810_misc.minor);
dev->name = I810_NAME;
- printk("doing mem init\n");
+ DRM_DEBUG("doing mem init\n");
drm_mem_init();
- printk("doing proc init\n");
+ DRM_DEBUG("doing proc init\n");
drm_proc_init(dev);
- printk("doing agp init\n");
+ DRM_DEBUG("doing agp init\n");
dev->agp = drm_agp_init();
- printk("doing ctxbitmap init\n");
+ if(dev->agp == NULL) {
+ DRM_INFO("The i810 drm module requires the agpgart module"
+ " to function correctly\nPlease load the agpgart"
+ " module before you load the i810 module\n");
+ drm_proc_cleanup();
+ misc_deregister(&i810_misc);
+ i810_takedown(dev);
+ return -ENOMEM;
+ }
+ DRM_DEBUG("doing ctxbitmap init\n");
if((retcode = drm_ctxbitmap_init(dev))) {
DRM_ERROR("Cannot allocate memory for context bitmap.\n");
drm_proc_cleanup();
@@ -386,10 +403,6 @@ int i810_init(void)
i810_takedown(dev);
return retcode;
}
-#if 0
- printk("doing i810_dma_init\n");
- i810_dma_init(dev);
-#endif
DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
I810_NAME,
@@ -417,7 +430,6 @@ void i810_cleanup(void)
DRM_INFO("Module unloaded\n");
}
drm_ctxbitmap_cleanup(dev);
- i810_dma_cleanup(dev);
i810_takedown(dev);
if (dev->agp) {
drm_free(dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS);
@@ -484,24 +496,82 @@ int i810_release(struct inode *inode, struct file *filp)
drm_device_t *dev = priv->dev;
int retcode = 0;
- DRM_DEBUG("open_count = %d\n", dev->open_count);
- if (!(retcode = drm_release(inode, filp))) {
- MOD_DEC_USE_COUNT;
- atomic_inc(&dev->total_close);
- spin_lock(&dev->count_lock);
- if (!--dev->open_count) {
- if (atomic_read(&dev->ioctl_count) || dev->blocked) {
- DRM_ERROR("Device busy: %d %d\n",
- atomic_read(&dev->ioctl_count),
- dev->blocked);
- spin_unlock(&dev->count_lock);
- return -EBUSY;
+ DRM_DEBUG("pid = %d, device = 0x%x, open_count = %d\n",
+ current->pid, dev->device, dev->open_count);
+
+ if (_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)
+ && dev->lock.pid == current->pid) {
+ i810_reclaim_buffers(dev, priv->pid);
+ DRM_ERROR("Process %d dead, freeing lock for context %d\n",
+ current->pid,
+ _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
+ drm_lock_free(dev,
+ &dev->lock.hw_lock->lock,
+ _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
+
+ /* FIXME: may require heavy-handed reset of
+ hardware at this point, possibly
+ processed via a callback to the X
+ server. */
+ } else {
+ /* The lock is required to reclaim buffers */
+ DECLARE_WAITQUEUE(entry, current);
+ add_wait_queue(&dev->lock.lock_queue, &entry);
+ for (;;) {
+ if (!dev->lock.hw_lock) {
+ /* Device has been unregistered */
+ retcode = -EINTR;
+ break;
+ }
+ if (drm_lock_take(&dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT)) {
+ dev->lock.pid = priv->pid;
+ dev->lock.lock_time = jiffies;
+ atomic_inc(&dev->total_locks);
+ break; /* Got lock */
+ }
+ /* Contention */
+ atomic_inc(&dev->total_sleeps);
+ current->state = TASK_INTERRUPTIBLE;
+ schedule();
+ if (signal_pending(current)) {
+ retcode = -ERESTARTSYS;
+ break;
}
- spin_unlock(&dev->count_lock);
- return i810_takedown(dev);
}
- spin_unlock(&dev->count_lock);
+ current->state = TASK_RUNNING;
+ remove_wait_queue(&dev->lock.lock_queue, &entry);
+ if(!retcode) {
+ i810_reclaim_buffers(dev, priv->pid);
+ drm_lock_free(dev, &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT);
+ }
+ }
+ drm_fasync(-1, filp, 0);
+
+ down(&dev->struct_sem);
+ if (priv->prev) priv->prev->next = priv->next;
+ else dev->file_first = priv->next;
+ if (priv->next) priv->next->prev = priv->prev;
+ else dev->file_last = priv->prev;
+ up(&dev->struct_sem);
+
+ drm_free(priv, sizeof(*priv), DRM_MEM_FILES);
+ MOD_DEC_USE_COUNT;
+ atomic_inc(&dev->total_close);
+ spin_lock(&dev->count_lock);
+ if (!--dev->open_count) {
+ if (atomic_read(&dev->ioctl_count) || dev->blocked) {
+ DRM_ERROR("Device busy: %d %d\n",
+ atomic_read(&dev->ioctl_count),
+ dev->blocked);
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ spin_unlock(&dev->count_lock);
+ return i810_takedown(dev);
}
+ spin_unlock(&dev->count_lock);
return retcode;
}
@@ -566,8 +636,7 @@ int i810_unlock(struct inode *inode, struct file *filp, unsigned int cmd,
atomic_inc(&dev->total_unlocks);
if (_DRM_LOCK_IS_CONT(dev->lock.hw_lock->lock))
atomic_inc(&dev->total_contends);
- drm_lock_transfer(dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT);
- i810_dma_schedule(dev, 1);
+ drm_lock_transfer(dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT);
if (!dev->context_flag) {
if (drm_lock_free(dev, &dev->lock.hw_lock->lock,
DRM_KERNEL_CONTEXT)) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 20:46:09 +0000