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-rw-r--r--linux/gamma_drv.c595
1 files changed, 64 insertions, 531 deletions
diff --git a/linux/gamma_drv.c b/linux/gamma_drv.c
index a17bc1a9..79e8ad16 100644
--- a/linux/gamma_drv.c
+++ b/linux/gamma_drv.c
@@ -30,542 +30,75 @@
*/
#include <linux/config.h>
+#include "gamma.h"
#include "drmP.h"
#include "gamma_drv.h"
-#ifndef PCI_DEVICE_ID_3DLABS_GAMMA
-#define PCI_DEVICE_ID_3DLABS_GAMMA 0x0008
+#define DRIVER_AUTHOR "VA Linux Systems Inc."
+
+#define DRIVER_NAME "gamma"
+#define DRIVER_DESC "3DLabs gamma"
+#define DRIVER_DATE "20010208"
+
+#define DRIVER_MAJOR 1
+#define DRIVER_MINOR 0
+#define DRIVER_PATCHLEVEL 0
+
+
+#define DRIVER_IOCTLS \
+ [DRM_IOCTL_NR(DRM_IOCTL_DMA)] = { gamma_dma, 1, 0 }
+
+#define __HAVE_MTRR 1
+#define __HAVE_CTX_BITMAP 0
+#define __HAVE_PCI_DMA 1
+#define __HAVE_MULTIPLE_DMA_QUEUES 1
+#define __HAVE_DMA_FLUSH 1
+#define __HAVE_DMA_QUEUE 0
+#define __HAVE_DMA_SCHEDULE 1
+#define __HAVE_DMA_WAITQUEUE 1
+#define __HAVE_DMA_WAITLIST 1
+#define __HAVE_DMA_FREELIST 1
+#define __HAVE_DMA 1
+#define __HAVE_OLD_DMA 1
+#define __HAVE_DMA_IRQ 1
+
+#define __HAVE_COUNTERS 5
+#define __HAVE_COUNTER6 _DRM_STAT_IRQ
+#define __HAVE_COUNTER7 _DRM_STAT_DMA
+#define __HAVE_COUNTER8 _DRM_STAT_PRIMARY
+#define __HAVE_COUNTER9 _DRM_STAT_SPECIAL
+#define __HAVE_COUNTER10 _DRM_STAT_MISSED
+
+#define __HAVE_DMA_READY 1
+#define DRIVER_DMA_READY() \
+do { \
+ gamma_dma_ready(dev); \
+} while (0)
+
+#define __HAVE_DMA_QUIESCENT 1
+#define DRIVER_DMA_QUIESCENT() \
+do { \
+ /* FIXME ! */ \
+ gamma_dma_quiescent_dual(dev); \
+ return 0; \
+} while (0)
+
+#if 0
+#define __HAVE_DRIVER_RELEASE 1
+#define DRIVER_RELEASE() do { \
+ gamma_reclaim_buffers( dev, priv->pid ); \
+ if ( dev->dev_private ) { \
+ drm_gamma_private_t *dev_priv = dev->dev_private; \
+ dev_priv->dispatch_status &= MGA_IN_DISPATCH; \
+ } \
+} while (0)
#endif
-#ifndef PCI_DEVICE_ID_3DLABS_MX
-#define PCI_DEVICE_ID_3DLABS_MX 0x0006
-#endif
-
-#define GAMMA_NAME "gamma"
-#define GAMMA_DESC "3dlabs GMX 2000"
-#define GAMMA_DATE "20000910"
-#define GAMMA_MAJOR 1
-#define GAMMA_MINOR 0
-#define GAMMA_PATCHLEVEL 0
-
-static drm_device_t gamma_device;
-
-static struct file_operations gamma_fops = {
-#if LINUX_VERSION_CODE >= 0x020400
- /* This started being used during 2.4.0-test */
- owner: THIS_MODULE,
-#endif
- open: gamma_open,
- flush: drm_flush,
- release: gamma_release,
- ioctl: gamma_ioctl,
- mmap: drm_mmap,
- read: drm_read,
- fasync: drm_fasync,
- poll: drm_poll,
-};
-
-static struct miscdevice gamma_misc = {
- minor: MISC_DYNAMIC_MINOR,
- name: GAMMA_NAME,
- fops: &gamma_fops,
-};
-
-static drm_ioctl_desc_t gamma_ioctls[] = {
- [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { gamma_version, 0, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { drm_getunique, 0, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { drm_getmagic, 0, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { drm_irq_busid, 0, 1 },
-
- [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { drm_setunique, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { drm_block, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { drm_unblock, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { gamma_control, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { drm_authmagic, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { drm_addmap, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = { drm_addbufs, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = { drm_markbufs, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = { drm_infobufs, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { drm_mapbufs, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { drm_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_DRAW)] = { drm_adddraw, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { drm_rmdraw, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_DMA)] = { gamma_dma, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { gamma_lock, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { gamma_unlock, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { drm_finish, 1, 0 },
-};
-#define GAMMA_IOCTL_COUNT DRM_ARRAY_SIZE(gamma_ioctls)
-
-#ifdef MODULE
-static char *gamma = NULL;
-#endif
-static int devices = 0;
-
-MODULE_AUTHOR("VA Linux Systems, Inc.");
-MODULE_DESCRIPTION("3dlabs GMX 2000");
-MODULE_PARM(gamma, "s");
-MODULE_PARM(devices, "i");
-MODULE_PARM_DESC(devices,
- "devices=x, where x is the number of MX chips on card\n");
-#ifndef MODULE
-/* gamma_options is called by the kernel to parse command-line options
- * passed via the boot-loader (e.g., LILO). It calls the insmod option
- * routine, drm_parse_options.
- */
-
-
-static int __init gamma_options(char *str)
-{
- drm_parse_options(str);
- return 1;
-}
-
-__setup("gamma=", gamma_options);
-#endif
-
-static int gamma_setup(drm_device_t *dev)
-{
- int i;
-
- atomic_set(&dev->ioctl_count, 0);
- atomic_set(&dev->vma_count, 0);
- dev->buf_use = 0;
- atomic_set(&dev->buf_alloc, 0);
-
- drm_dma_setup(dev);
-
- atomic_set(&dev->total_open, 0);
- atomic_set(&dev->total_close, 0);
- atomic_set(&dev->total_ioctl, 0);
- atomic_set(&dev->total_irq, 0);
- atomic_set(&dev->total_ctx, 0);
- atomic_set(&dev->total_locks, 0);
- atomic_set(&dev->total_unlocks, 0);
- atomic_set(&dev->total_contends, 0);
- atomic_set(&dev->total_sleeps, 0);
-
- for (i = 0; i < DRM_HASH_SIZE; i++) {
- dev->magiclist[i].head = NULL;
- dev->magiclist[i].tail = NULL;
- }
- dev->maplist = NULL;
- dev->map_count = 0;
- dev->vmalist = NULL;
- dev->lock.hw_lock = NULL;
- init_waitqueue_head(&dev->lock.lock_queue);
- dev->queue_count = 0;
- dev->queue_reserved = 0;
- dev->queue_slots = 0;
- dev->queuelist = NULL;
- dev->irq = 0;
- dev->context_flag = 0;
- dev->interrupt_flag = 0;
- dev->dma_flag = 0;
- dev->last_context = 0;
- dev->last_switch = 0;
- dev->last_checked = 0;
- init_timer(&dev->timer);
- init_waitqueue_head(&dev->context_wait);
-#if DRM_DMA_HISTO
- memset(&dev->histo, 0, sizeof(dev->histo));
-#endif
- dev->ctx_start = 0;
- dev->lck_start = 0;
-
- dev->buf_rp = dev->buf;
- dev->buf_wp = dev->buf;
- dev->buf_end = dev->buf + DRM_BSZ;
- dev->buf_async = NULL;
- init_waitqueue_head(&dev->buf_readers);
- init_waitqueue_head(&dev->buf_writers);
-
- DRM_DEBUG("\n");
-
- /* The kernel's context could be created here, but is now created
- in drm_dma_enqueue. This is more resource-efficient for
- hardware that does not do DMA, but may mean that
- drm_select_queue fails between the time the interrupt is
- initialized and the time the queues are initialized. */
-
- return 0;
-}
-
-
-static int gamma_takedown(drm_device_t *dev)
-{
- int i;
- drm_magic_entry_t *pt, *next;
- drm_map_t *map;
- drm_vma_entry_t *vma, *vma_next;
-
- DRM_DEBUG("\n");
-
- if (dev->irq) gamma_irq_uninstall(dev);
-
- down(&dev->struct_sem);
- del_timer(&dev->timer);
-
- if (dev->devname) {
- drm_free(dev->devname, strlen(dev->devname)+1, DRM_MEM_DRIVER);
- dev->devname = NULL;
- }
-
- if (dev->unique) {
- drm_free(dev->unique, strlen(dev->unique)+1, DRM_MEM_DRIVER);
- dev->unique = NULL;
- dev->unique_len = 0;
- }
- /* Clear pid list */
- for (i = 0; i < DRM_HASH_SIZE; i++) {
- for (pt = dev->magiclist[i].head; pt; pt = next) {
- next = pt->next;
- drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);
- }
- dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
- }
-
- /* Clear vma list (only built for debugging) */
- if (dev->vmalist) {
- for (vma = dev->vmalist; vma; vma = vma_next) {
- vma_next = vma->next;
- drm_free(vma, sizeof(*vma), DRM_MEM_VMAS);
- }
- dev->vmalist = NULL;
- }
-
- /* Clear map area and mtrr information */
- if (dev->maplist) {
- for (i = 0; i < dev->map_count; i++) {
- map = dev->maplist[i];
- switch (map->type) {
- case _DRM_REGISTERS:
- case _DRM_FRAME_BUFFER:
-#ifdef CONFIG_MTRR
- if (map->mtrr >= 0) {
- int retcode;
- retcode = mtrr_del(map->mtrr,
- map->offset,
- map->size);
- DRM_DEBUG("mtrr_del = %d\n", retcode);
- }
-#endif
- drm_ioremapfree(map->handle, map->size);
- break;
- case _DRM_SHM:
- drm_free_pages((unsigned long)map->handle,
- drm_order(map->size)
- - PAGE_SHIFT,
- DRM_MEM_SAREA);
- break;
- case _DRM_AGP:
- /* Do nothing here, because this is all
- handled in the AGP/GART driver. */
- break;
- }
- drm_free(map, sizeof(*map), DRM_MEM_MAPS);
- }
- drm_free(dev->maplist,
- dev->map_count * sizeof(*dev->maplist),
- DRM_MEM_MAPS);
- dev->maplist = NULL;
- dev->map_count = 0;
- }
-
- if (dev->queuelist) {
- for (i = 0; i < dev->queue_count; i++) {
- drm_waitlist_destroy(&dev->queuelist[i]->waitlist);
- if (dev->queuelist[i]) {
- drm_free(dev->queuelist[i],
- sizeof(*dev->queuelist[0]),
- DRM_MEM_QUEUES);
- dev->queuelist[i] = NULL;
- }
- }
- drm_free(dev->queuelist,
- dev->queue_slots * sizeof(*dev->queuelist),
- DRM_MEM_QUEUES);
- dev->queuelist = NULL;
- }
-
- drm_dma_takedown(dev);
-
- dev->queue_count = 0;
- if (dev->lock.hw_lock) {
- dev->lock.hw_lock = NULL; /* SHM removed */
- dev->lock.pid = 0;
- wake_up_interruptible(&dev->lock.lock_queue);
- }
- up(&dev->struct_sem);
-
- return 0;
-}
-
-int gamma_found(void)
-{
- return devices;
-}
-
-int gamma_find_devices(void)
-{
- struct pci_dev *d = NULL, *one = NULL, *two = NULL;
-
- d = pci_find_device(PCI_VENDOR_ID_3DLABS,PCI_DEVICE_ID_3DLABS_GAMMA,d);
- if (!d) return 0;
- one = pci_find_device(PCI_VENDOR_ID_3DLABS,PCI_DEVICE_ID_3DLABS_MX,d);
- if (!one) return 0;
-
- /* Make sure it's on the same card, if not - no MX's found */
- if (PCI_SLOT(d->devfn) != PCI_SLOT(one->devfn)) return 0;
-
- two = pci_find_device(PCI_VENDOR_ID_3DLABS,PCI_DEVICE_ID_3DLABS_MX,one);
- if (!two) return 1;
-
- /* Make sure it's on the same card, if not - only 1 MX found */
- if (PCI_SLOT(d->devfn) != PCI_SLOT(two->devfn)) return 1;
-
- /* Two MX's found - we don't currently support more than 2 */
- return 2;
-}
-
-/* gamma_init is called via init_module at module load time, or via
- * linux/init/main.c (this is not currently supported). */
-
-static int __init gamma_init(void)
-{
- int retcode;
- drm_device_t *dev = &gamma_device;
-
- DRM_DEBUG("\n");
-
- memset((void *)dev, 0, sizeof(*dev));
- dev->count_lock = SPIN_LOCK_UNLOCKED;
- sema_init(&dev->struct_sem, 1);
-
-#ifdef MODULE
- drm_parse_options(gamma);
-#endif
- devices = gamma_find_devices();
- if (devices == 0) return -1;
-
- if ((retcode = misc_register(&gamma_misc))) {
- DRM_ERROR("Cannot register \"%s\"\n", GAMMA_NAME);
- return retcode;
- }
- dev->device = MKDEV(MISC_MAJOR, gamma_misc.minor);
- dev->name = GAMMA_NAME;
-
- drm_mem_init();
- drm_proc_init(dev);
-
- DRM_INFO("Initialized %s %d.%d.%d %s on minor %d with %d MX devices\n",
- GAMMA_NAME,
- GAMMA_MAJOR,
- GAMMA_MINOR,
- GAMMA_PATCHLEVEL,
- GAMMA_DATE,
- gamma_misc.minor,
- devices);
-
- return 0;
-}
-
-/* gamma_cleanup is called via cleanup_module at module unload time. */
-
-static void __exit gamma_cleanup(void)
-{
- drm_device_t *dev = &gamma_device;
-
- DRM_DEBUG("\n");
-
- drm_proc_cleanup();
- if (misc_deregister(&gamma_misc)) {
- DRM_ERROR("Cannot unload module\n");
- } else {
- DRM_INFO("Module unloaded\n");
- }
- gamma_takedown(dev);
-}
-
-module_init(gamma_init);
-module_exit(gamma_cleanup);
-
-
-int gamma_version(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_version_t version;
- int len;
-
- if (copy_from_user(&version,
- (drm_version_t *)arg,
- sizeof(version)))
- return -EFAULT;
-
-#define DRM_COPY(name,value) \
- len = strlen(value); \
- if (len > name##_len) len = name##_len; \
- name##_len = strlen(value); \
- if (len && name) { \
- if (copy_to_user(name, value, len)) \
- return -EFAULT; \
- }
-
- version.version_major = GAMMA_MAJOR;
- version.version_minor = GAMMA_MINOR;
- version.version_patchlevel = GAMMA_PATCHLEVEL;
-
- DRM_COPY(version.name, GAMMA_NAME);
- DRM_COPY(version.date, GAMMA_DATE);
- DRM_COPY(version.desc, GAMMA_DESC);
-
- if (copy_to_user((drm_version_t *)arg,
- &version,
- sizeof(version)))
- return -EFAULT;
- return 0;
-}
-
-int gamma_open(struct inode *inode, struct file *filp)
-{
- drm_device_t *dev = &gamma_device;
- int retcode = 0;
-
- DRM_DEBUG("open_count = %d\n", dev->open_count);
- if (!(retcode = drm_open_helper(inode, filp, dev))) {
-#if LINUX_VERSION_CODE < 0x020333
- MOD_INC_USE_COUNT; /* Needed before Linux 2.3.51 */
+#if 0
+#define DRIVER_PRETAKEDOWN() do { \
+ if ( dev->dev_private ) gamma_do_cleanup_dma( dev ); \
+} while (0)
#endif
- atomic_inc(&dev->total_open);
- spin_lock(&dev->count_lock);
- if (!dev->open_count++) {
- spin_unlock(&dev->count_lock);
- return gamma_setup(dev);
- }
- spin_unlock(&dev->count_lock);
- }
- return retcode;
-}
-
-int gamma_release(struct inode *inode, struct file *filp)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev;
- int retcode = 0;
-
- lock_kernel();
- dev = priv->dev;
-
- DRM_DEBUG("open_count = %d\n", dev->open_count);
- if (!(retcode = drm_release(inode, filp))) {
-#if LINUX_VERSION_CODE < 0x020333
- MOD_DEC_USE_COUNT; /* Needed before Linux 2.3.51 */
-#endif
- 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);
- unlock_kernel();
- return -EBUSY;
- }
- spin_unlock(&dev->count_lock);
- unlock_kernel();
- return gamma_takedown(dev);
- }
- spin_unlock(&dev->count_lock);
- }
- unlock_kernel();
- return retcode;
-}
-
-/* drm_ioctl is called whenever a process performs an ioctl on /dev/drm. */
-int gamma_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- int nr = DRM_IOCTL_NR(cmd);
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- int retcode = 0;
- drm_ioctl_desc_t *ioctl;
- drm_ioctl_t *func;
-
- atomic_inc(&dev->ioctl_count);
- atomic_inc(&dev->total_ioctl);
- ++priv->ioctl_count;
-
- DRM_DEBUG("pid = %d, cmd = 0x%02x, nr = 0x%02x, dev 0x%x, auth = %d\n",
- current->pid, cmd, nr, dev->device, priv->authenticated);
-
- if (nr >= GAMMA_IOCTL_COUNT) {
- retcode = -EINVAL;
- } else {
- ioctl = &gamma_ioctls[nr];
- func = ioctl->func;
-
- if (!func) {
- DRM_DEBUG("no function\n");
- retcode = -EINVAL;
- } else if ((ioctl->root_only && !capable(CAP_SYS_ADMIN))
- || (ioctl->auth_needed && !priv->authenticated)) {
- retcode = -EACCES;
- } else {
- retcode = (func)(inode, filp, cmd, arg);
- }
- }
-
- atomic_dec(&dev->ioctl_count);
- return retcode;
-}
-
-
-int gamma_unlock(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_lock_t lock;
-
- if (copy_from_user(&lock, (drm_lock_t *)arg, sizeof(lock)))
- return -EFAULT;
-
- if (lock.context == DRM_KERNEL_CONTEXT) {
- DRM_ERROR("Process %d using kernel context %d\n",
- current->pid, lock.context);
- return -EINVAL;
- }
-
- DRM_DEBUG("%d frees lock (%d holds)\n",
- lock.context,
- _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
- 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);
- gamma_dma_schedule(dev, 1);
- if (!dev->context_flag) {
- if (drm_lock_free(dev, &dev->lock.hw_lock->lock,
- DRM_KERNEL_CONTEXT)) {
- DRM_ERROR("\n");
- }
- }
-#if DRM_DMA_HISTOGRAM
- atomic_inc(&dev->histo.lhld[drm_histogram_slot(get_cycles()
- - dev->lck_start)]);
-#endif
+#include "drm_drv.h"
- unblock_all_signals();
- return 0;
-}