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-rw-r--r--linux/tdfx_drv.c126
1 files changed, 62 insertions, 64 deletions
diff --git a/linux/tdfx_drv.c b/linux/tdfx_drv.c
index 582832b5..07febea1 100644
--- a/linux/tdfx_drv.c
+++ b/linux/tdfx_drv.c
@@ -31,15 +31,12 @@
*/
#include <linux/config.h>
-#define EXPORT_SYMTAB
#include "drmP.h"
#include "tdfx_drv.h"
-EXPORT_SYMBOL(tdfx_init);
-EXPORT_SYMBOL(tdfx_cleanup);
#define TDFX_NAME "tdfx"
-#define TDFX_DESC "tdfx"
-#define TDFX_DATE "19991009"
+#define TDFX_DESC "3dfx Banshee/Voodoo3+"
+#define TDFX_DATE "20000719"
#define TDFX_MAJOR 1
#define TDFX_MINOR 0
#define TDFX_PATCHLEVEL 0
@@ -48,6 +45,10 @@ static drm_device_t tdfx_device;
drm_ctx_t tdfx_res_ctx;
static struct file_operations tdfx_fops = {
+#if LINUX_VERSION_CODE >= 0x020400
+ /* This started being used during 2.4.0-test */
+ owner: THIS_MODULE,
+#endif
open: tdfx_open,
flush: drm_flush,
release: tdfx_release,
@@ -88,7 +89,7 @@ static drm_ioctl_desc_t tdfx_ioctls[] = {
[DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { tdfx_lock, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { tdfx_unlock, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { drm_finish, 1, 0 },
-#ifdef DRM_AGP
+#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},
@@ -102,46 +103,26 @@ static drm_ioctl_desc_t tdfx_ioctls[] = {
#define TDFX_IOCTL_COUNT DRM_ARRAY_SIZE(tdfx_ioctls)
#ifdef MODULE
-int init_module(void);
-void cleanup_module(void);
static char *tdfx = NULL;
+#endif
-MODULE_AUTHOR("Precision Insight, Inc., Cedar Park, Texas.");
+MODULE_AUTHOR("VA Linux Systems, Inc.");
MODULE_DESCRIPTION("tdfx");
MODULE_PARM(tdfx, "s");
-/* init_module is called when insmod is used to load the module */
-
-int init_module(void)
-{
- return tdfx_init();
-}
-
-/* cleanup_module is called when rmmod is used to unload the module */
-
-void cleanup_module(void)
-{
- tdfx_cleanup();
-}
-#endif
-
#ifndef MODULE
-/* tdfx_setup 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.
- *
- * This is not currently supported, since it requires changes to
- * linux/init/main.c. */
-
+/* tdfx_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.
+ */
-void __init tdfx_setup(char *str, int *ints)
+static int __init tdfx_options(char *str)
{
- if (ints[0] != 0) {
- DRM_ERROR("Illegal command line format, ignored\n");
- return;
- }
drm_parse_options(str);
+ return 1;
}
+
+__setup("tdfx=", tdfx_options);
#endif
static int tdfx_setup(drm_device_t *dev)
@@ -241,7 +222,7 @@ static int tdfx_takedown(drm_device_t *dev)
}
dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
}
-#ifdef DRM_AGP
+#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
/* Clear AGP information */
if (dev->agp) {
drm_agp_mem_t *temp;
@@ -254,9 +235,7 @@ static int tdfx_takedown(drm_device_t *dev)
drm_free(temp, sizeof(*temp), DRM_MEM_AGPLISTS);
temp = temp_next;
}
- if(dev->agp->acquired) (*drm_agp.release)();
- drm_free(dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS);
- dev->agp = NULL;
+ if (dev->agp->acquired) (*drm_agp.release)();
}
#endif
/* Clear vma list (only built for debugging) */
@@ -319,7 +298,7 @@ static int tdfx_takedown(drm_device_t *dev)
/* tdfx_init is called via init_module at module load time, or via
* linux/init/main.c (this is not currently supported). */
-int tdfx_init(void)
+static int tdfx_init(void)
{
int retcode;
drm_device_t *dev = &tdfx_device;
@@ -343,7 +322,7 @@ int tdfx_init(void)
drm_mem_init();
drm_proc_init(dev);
-#ifdef DRM_AGP
+#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
dev->agp = drm_agp_init();
#endif
if((retcode = drm_ctxbitmap_init(dev))) {
@@ -367,7 +346,7 @@ int tdfx_init(void)
/* tdfx_cleanup is called via cleanup_module at module unload time. */
-void tdfx_cleanup(void)
+static void tdfx_cleanup(void)
{
drm_device_t *dev = &tdfx_device;
@@ -381,8 +360,19 @@ void tdfx_cleanup(void)
}
drm_ctxbitmap_cleanup(dev);
tdfx_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(tdfx_init);
+module_exit(tdfx_cleanup);
+
+
int tdfx_version(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
{
@@ -424,7 +414,9 @@ int tdfx_open(struct inode *inode, struct file *filp)
DRM_DEBUG("open_count = %d\n", dev->open_count);
if (!(retcode = drm_open_helper(inode, filp, dev))) {
- MOD_INC_USE_COUNT;
+#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++) {
@@ -439,12 +431,17 @@ int tdfx_open(struct inode *inode, struct file *filp)
int tdfx_release(struct inode *inode, struct file *filp)
{
drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
+ 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))) {
- MOD_DEC_USE_COUNT;
+#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) {
@@ -453,13 +450,17 @@ int tdfx_release(struct inode *inode, struct file *filp)
atomic_read(&dev->ioctl_count),
dev->blocked);
spin_unlock(&dev->count_lock);
+ unlock_kernel();
return -EBUSY;
}
spin_unlock(&dev->count_lock);
+ unlock_kernel();
return tdfx_takedown(dev);
}
spin_unlock(&dev->count_lock);
}
+
+ unlock_kernel();
return retcode;
}
@@ -614,6 +615,16 @@ int tdfx_lock(struct inode *inode, struct file *filp, unsigned int cmd,
#endif
if (!ret) {
+#if LINUX_VERSION_CODE >= 0x020400 /* KERNEL_VERSION(2,4,0) */
+ 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);
+#endif
if (lock.flags & _DRM_LOCK_READY) {
/* Wait for space in DMA/FIFO */
}
@@ -625,19 +636,11 @@ int tdfx_lock(struct inode *inode, struct file *filp, unsigned int cmd,
}
}
-#if 0
- DRM_ERROR("pid = %5d, old counter = %5ld\n",
- current->pid, current->counter);
-#endif
+#if LINUX_VERSION_CODE < 0x020400
if (lock.context != tdfx_res_ctx.handle) {
current->counter = 5;
current->priority = DEF_PRIORITY/4;
}
-#if 0
- while (current->counter > 25)
- current->counter >>= 1; /* decrease time slice */
- DRM_ERROR("pid = %5d, new counter = %5ld\n",
- current->pid, current->counter);
#endif
DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock");
@@ -679,20 +682,15 @@ int tdfx_unlock(struct inode *inode, struct file *filp, unsigned int cmd,
}
}
-#if 0
- current->policy |= SCHED_YIELD;
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(1000);
-#endif
-
+#if LINUX_VERSION_CODE < 0x020400
if (lock.context != tdfx_res_ctx.handle) {
current->counter = 5;
current->priority = DEF_PRIORITY;
}
-#if 0
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(10);
#endif
+#if LINUX_VERSION_CODE >= 0x020400 /* KERNEL_VERSION(2,4,0) */
+ unblock_all_signals();
+#endif
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 20:46:43 +0000