patch-2.4.8 linux/drivers/char/drm/r128_drv.c
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- Lines: 755
- Date:
Wed Aug 8 09:42:15 2001
- Orig file:
v2.4.7/linux/drivers/char/drm/r128_drv.c
- Orig date:
Thu Jan 4 13:03:20 2001
diff -u --recursive --new-file v2.4.7/linux/drivers/char/drm/r128_drv.c linux/drivers/char/drm/r128_drv.c
@@ -1,7 +1,7 @@
/* r128_drv.c -- ATI Rage 128 driver -*- linux-c -*-
* Created: Mon Dec 13 09:47:27 1999 by faith@precisioninsight.com
*
- * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
* All Rights Reserved.
*
@@ -19,681 +19,94 @@
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
* Rickard E. (Rik) Faith <faith@valinux.com>
- * Kevin E. Martin <martin@valinux.com>
* Gareth Hughes <gareth@valinux.com>
- *
*/
#include <linux/config.h>
+#include "r128.h"
#include "drmP.h"
#include "r128_drv.h"
+#include "ati_pcigart.h"
-#define R128_NAME "r128"
-#define R128_DESC "ATI Rage 128"
-#define R128_DATE "20001215"
-#define R128_MAJOR 2
-#define R128_MINOR 1
-#define R128_PATCHLEVEL 2
-
-static drm_device_t r128_device;
-drm_ctx_t r128_res_ctx;
-
-static struct file_operations r128_fops = {
-#if LINUX_VERSION_CODE >= 0x020400
- /* This started being used during 2.4.0-test */
- owner: THIS_MODULE,
-#endif
- open: r128_open,
- flush: drm_flush,
- release: r128_release,
- ioctl: r128_ioctl,
- mmap: drm_mmap,
- read: drm_read,
- fasync: drm_fasync,
- poll: drm_poll,
-};
-
-static struct miscdevice r128_misc = {
- minor: MISC_DYNAMIC_MINOR,
- name: R128_NAME,
- fops: &r128_fops,
-};
-
-static drm_ioctl_desc_t r128_ioctls[] = {
- [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { r128_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_AUTH_MAGIC)] = { drm_authmagic, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { drm_addmap, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = { r128_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)] = { r128_mapbufs, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { drm_freebufs, 1, 0 },
-
- [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { r128_addctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { r128_rmctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { r128_modctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { r128_getctx, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { r128_switchctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { r128_newctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { r128_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)] = { r128_cce_buffers, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { r128_lock, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { r128_unlock, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { drm_finish, 1, 0 },
-
-#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = { drm_agp_acquire, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = { drm_agp_release, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = { drm_agp_enable, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = { drm_agp_info, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = { drm_agp_alloc, 1, 1 },
- [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 },
-#endif
+#define DRIVER_AUTHOR "Gareth Hughes, VA Linux Systems Inc."
- [DRM_IOCTL_NR(DRM_IOCTL_R128_INIT)] = { r128_cce_init, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_R128_CCE_START)] = { r128_cce_start, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_R128_CCE_STOP)] = { r128_cce_stop, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_R128_CCE_RESET)] = { r128_cce_reset, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_R128_CCE_IDLE)] = { r128_cce_idle, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_R128_RESET)] = { r128_engine_reset, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_R128_SWAP)] = { r128_cce_swap, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_R128_CLEAR)] = { r128_cce_clear, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_R128_VERTEX)] = { r128_cce_vertex, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_R128_INDICES)] = { r128_cce_indices, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_R128_BLIT)] = { r128_cce_blit, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_R128_DEPTH)] = { r128_cce_depth, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_R128_STIPPLE)] = { r128_cce_stipple, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_R128_PACKET)] = { r128_cce_packet, 1, 0 },
-};
-#define R128_IOCTL_COUNT DRM_ARRAY_SIZE(r128_ioctls)
+#define DRIVER_NAME "r128"
+#define DRIVER_DESC "ATI Rage 128"
+#define DRIVER_DATE "20010405"
+
+#define DRIVER_MAJOR 2
+#define DRIVER_MINOR 1
+#define DRIVER_PATCHLEVEL 6
+
+#define DRIVER_IOCTLS \
+ [DRM_IOCTL_NR(DRM_IOCTL_DMA)] = { r128_cce_buffers, 1, 0 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_INIT)] = { r128_cce_init, 1, 1 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_CCE_START)] = { r128_cce_start, 1, 1 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_CCE_STOP)] = { r128_cce_stop, 1, 1 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_CCE_RESET)] = { r128_cce_reset, 1, 1 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_CCE_IDLE)] = { r128_cce_idle, 1, 0 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_RESET)] = { r128_engine_reset, 1, 0 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_FULLSCREEN)] = { r128_fullscreen, 1, 0 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_SWAP)] = { r128_cce_swap, 1, 0 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_CLEAR)] = { r128_cce_clear, 1, 0 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_VERTEX)] = { r128_cce_vertex, 1, 0 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_INDICES)] = { r128_cce_indices, 1, 0 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_BLIT)] = { r128_cce_blit, 1, 0 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_DEPTH)] = { r128_cce_depth, 1, 0 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_STIPPLE)] = { r128_cce_stipple, 1, 0 }, \
+ [DRM_IOCTL_NR(DRM_IOCTL_R128_INDIRECT)] = { r128_cce_indirect, 1, 1 },
-#ifdef MODULE
-static char *r128 = NULL;
+
+#if 0
+/* GH: Count data sent to card via ring or vertex/indirect buffers.
+ */
+#define __HAVE_COUNTERS 3
+#define __HAVE_COUNTER6 _DRM_STAT_IRQ
+#define __HAVE_COUNTER7 _DRM_STAT_PRIMARY
+#define __HAVE_COUNTER8 _DRM_STAT_SECONDARY
#endif
-MODULE_AUTHOR("VA Linux Systems, Inc.");
-MODULE_DESCRIPTION("r128");
-MODULE_PARM(r128, "s");
+
+#include "drm_agpsupport.h"
+#include "drm_auth.h"
+#include "drm_bufs.h"
+#include "drm_context.h"
+#include "drm_dma.h"
+#include "drm_drawable.h"
+#include "drm_drv.h"
#ifndef MODULE
-/* r128_options is called by the kernel to parse command-line options
+/* DRM(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_drm.
*/
-static int __init r128_options(char *str)
+/* JH- We have to hand expand the string ourselves because of the cpp. If
+ * anyone can think of a way that we can fit into the __setup macro without
+ * changing it, then please send the solution my way.
+ */
+static int __init r128_options( char *str )
{
- drm_parse_options(str);
+ DRM(parse_options)( str );
return 1;
}
-__setup("r128=", r128_options);
-#endif
-
-static int r128_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);
-
- 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);
-
- r128_res_ctx.handle=-1;
-
- 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 r128_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");
-
- 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;
- }
-
-#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- /* Clear AGP information */
- if (dev->agp) {
- drm_agp_mem_t *entry;
- drm_agp_mem_t *nexte;
-
- /* Remove AGP resources, but leave dev->agp
- intact until r128_cleanup is called. */
- for (entry = dev->agp->memory; entry; entry = nexte) {
- nexte = entry->next;
- if (entry->bound) drm_unbind_agp(entry->memory);
- drm_free_agp(entry->memory, entry->pages);
- drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
- }
- dev->agp->memory = NULL;
-
- if (dev->agp->acquired) _drm_agp_release();
-
- dev->agp->acquired = 0;
- dev->agp->enabled = 0;
- }
-#endif
-
- /* 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;
- }
-
- 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;
-}
-
-/* r128_init is called via init_module at module load time, or via
- * linux/init/main.c (this is not currently supported). */
-
-static int __init r128_init(void)
-{
- int retcode;
- drm_device_t *dev = &r128_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(r128);
-#endif
-
- if ((retcode = misc_register(&r128_misc))) {
- DRM_ERROR("Cannot register \"%s\"\n", R128_NAME);
- return retcode;
- }
- dev->device = MKDEV(MISC_MAJOR, r128_misc.minor);
- dev->name = R128_NAME;
-
- drm_mem_init();
- drm_proc_init(dev);
-
-#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- dev->agp = drm_agp_init();
- if (dev->agp == NULL) {
- DRM_ERROR("Cannot initialize agpgart module.\n");
- drm_proc_cleanup();
- misc_deregister(&r128_misc);
- r128_takedown(dev);
- return -ENOMEM;
- }
-
-#ifdef CONFIG_MTRR
- dev->agp->agp_mtrr = mtrr_add(dev->agp->agp_info.aper_base,
- dev->agp->agp_info.aper_size*1024*1024,
- MTRR_TYPE_WRCOMB,
- 1);
+__setup( DRIVER_NAME "=", r128_options );
#endif
-#endif
-
- if((retcode = drm_ctxbitmap_init(dev))) {
- DRM_ERROR("Cannot allocate memory for context bitmap.\n");
- drm_proc_cleanup();
- misc_deregister(&r128_misc);
- r128_takedown(dev);
- return retcode;
- }
-
- DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
- R128_NAME,
- R128_MAJOR,
- R128_MINOR,
- R128_PATCHLEVEL,
- R128_DATE,
- r128_misc.minor);
-
- return 0;
-}
-
-/* r128_cleanup is called via cleanup_module at module unload time. */
-
-static void __exit r128_cleanup(void)
-{
- drm_device_t *dev = &r128_device;
-
- DRM_DEBUG("\n");
-
- drm_proc_cleanup();
- if (misc_deregister(&r128_misc)) {
- DRM_ERROR("Cannot unload module\n");
- } else {
- DRM_INFO("Module unloaded\n");
- }
- drm_ctxbitmap_cleanup(dev);
- r128_takedown(dev);
-#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- if (dev->agp) {
- drm_agp_uninit();
- drm_free(dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS);
- dev->agp = NULL;
- }
-#endif
-}
-
-module_init(r128_init);
-module_exit(r128_cleanup);
-
-int r128_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 = R128_MAJOR;
- version.version_minor = R128_MINOR;
- version.version_patchlevel = R128_PATCHLEVEL;
-
- DRM_COPY(version.name, R128_NAME);
- DRM_COPY(version.date, R128_DATE);
- DRM_COPY(version.desc, R128_DESC);
-
- if (copy_to_user((drm_version_t *)arg,
- &version,
- sizeof(version)))
- return -EFAULT;
- return 0;
-}
-
-int r128_open(struct inode *inode, struct file *filp)
-{
- drm_device_t *dev = &r128_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 */
-#endif
- atomic_inc(&dev->total_open);
- spin_lock(&dev->count_lock);
- if (!dev->open_count++) {
- spin_unlock(&dev->count_lock);
- return r128_setup(dev);
- }
- spin_unlock(&dev->count_lock);
- }
-
- return retcode;
-}
-
-int r128_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 r128_takedown(dev);
- }
- spin_unlock(&dev->count_lock);
- }
-
- unlock_kernel();
- return retcode;
-}
-
-/* r128_ioctl is called whenever a process performs an ioctl on /dev/drm. */
-int r128_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 >= R128_IOCTL_COUNT) {
- retcode = -EINVAL;
- } else {
- ioctl = &r128_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);
- }
- }
-
-#if 0
- if ( retcode ) {
- DRM_INFO( "%s 0x%x ret = %d\n", __FUNCTION__, nr, retcode );
- }
-#endif
-
- atomic_dec(&dev->ioctl_count);
- return retcode;
-}
-
-int r128_lock(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;
- DECLARE_WAITQUEUE(entry, current);
- int ret = 0;
- drm_lock_t lock;
-#if DRM_DMA_HISTOGRAM
- cycles_t start;
-
- dev->lck_start = start = get_cycles();
-#endif
-
- 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 (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
- lock.context, current->pid, dev->lock.hw_lock->lock,
- lock.flags);
-
- if (lock.context < 0)
- return -EINVAL;
-
- if (!ret) {
- add_wait_queue(&dev->lock.lock_queue, &entry);
- for (;;) {
- current->state = TASK_INTERRUPTIBLE;
- if (!dev->lock.hw_lock) {
- /* Device has been unregistered */
- ret = -EINTR;
- break;
- }
- if (drm_lock_take(&dev->lock.hw_lock->lock,
- lock.context)) {
- dev->lock.pid = current->pid;
- dev->lock.lock_time = jiffies;
- atomic_inc(&dev->total_locks);
- break; /* Got lock */
- }
-
- /* Contention */
- atomic_inc(&dev->total_sleeps);
- schedule();
- if (signal_pending(current)) {
- ret = -ERESTARTSYS;
- break;
- }
- }
- current->state = TASK_RUNNING;
- remove_wait_queue(&dev->lock.lock_queue, &entry);
- }
-
- if (!ret) {
- sigemptyset(&dev->sigmask);
- sigaddset(&dev->sigmask, SIGSTOP);
- sigaddset(&dev->sigmask, SIGTSTP);
- sigaddset(&dev->sigmask, SIGTTIN);
- sigaddset(&dev->sigmask, SIGTTOU);
- dev->sigdata.context = lock.context;
- dev->sigdata.lock = dev->lock.hw_lock;
- block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask);
- if (lock.flags & _DRM_LOCK_READY) {
- /* Wait for space in DMA/FIFO */
- }
- if (lock.flags & _DRM_LOCK_QUIESCENT) {
- /* Make hardware quiescent */
- DRM_DEBUG( "not quiescent!\n" );
-#if 0
- r128_quiescent(dev);
-#endif
- }
- }
-
-#if LINUX_VERSION_CODE < 0x020400
- if (lock.context != r128_res_ctx.handle) {
- current->counter = 5;
- current->priority = DEF_PRIORITY/4;
- }
-#endif
- DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock");
-
-#if DRM_DMA_HISTOGRAM
- atomic_inc(&dev->histo.lacq[drm_histogram_slot(get_cycles() - start)]);
-#endif
-
- return ret;
-}
-
-
-int r128_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);
- /* FIXME: Try to send data to card here */
- if (!dev->context_flag) {
- if (drm_lock_free(dev, &dev->lock.hw_lock->lock,
- DRM_KERNEL_CONTEXT)) {
- DRM_ERROR("\n");
- }
- }
-
-#if LINUX_VERSION_CODE < 0x020400
- if (lock.context != r128_res_ctx.handle) {
- current->counter = 5;
- current->priority = DEF_PRIORITY;
- }
-#endif
- unblock_all_signals();
- return 0;
-}
+#include "drm_fops.h"
+#include "drm_init.h"
+#include "drm_ioctl.h"
+#include "drm_lock.h"
+#include "drm_memory.h"
+#include "drm_proc.h"
+#include "drm_vm.h"
+#include "drm_stub.h"
+#include "drm_scatter.h"
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)