summaryrefslogtreecommitdiff
path: root/linux/sis_drv.c
diff options
context:
space:
mode:
Diffstat (limited to 'linux/sis_drv.c')
-rw-r--r--linux/sis_drv.c183
1 files changed, 85 insertions, 98 deletions
diff --git a/linux/sis_drv.c b/linux/sis_drv.c
index 06ae7988..0b1990b0 100644
--- a/linux/sis_drv.c
+++ b/linux/sis_drv.c
@@ -1,6 +1,7 @@
/* sis.c -- sis driver -*- linux-c -*-
*
- * 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.
*
* Permission is hereby granted, free of charge, to any person obtaining a
@@ -23,6 +24,7 @@
* DEALINGS IN THE SOFTWARE.
*
*/
+/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/sis_drv.c,v 1.5 2000/09/22 11:35:47 alanh Exp $ */
#include <linux/config.h>
#include "drmP.h"
@@ -30,16 +32,20 @@
#include "sis_drv.h"
#define SIS_NAME "sis"
-#define SIS_DESC "sis"
-#define SIS_DATE "19991009"
-#define SIS_MAJOR 0
+#define SIS_DESC "SIS 300/630/540"
+#define SIS_DATE "20000831"
+#define SIS_MAJOR 1
#define SIS_MINOR 0
-#define SIS_PATCHLEVEL 1
+#define SIS_PATCHLEVEL 0
static drm_device_t sis_device;
drm_ctx_t sis_res_ctx;
static struct file_operations sis_fops = {
+#if LINUX_VERSION_CODE >= 0x020400
+ /* This started being used during 2.4.0-test */
+ owner: THIS_MODULE,
+#endif
open: sis_open,
flush: drm_flush,
release: sis_release,
@@ -65,14 +71,14 @@ static drm_ioctl_desc_t sis_ioctls[] = {
[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_CTX)] = { sis_addctx, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { sis_rmctx, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { sis_modctx, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { sis_getctx, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { sis_switchctx, 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { sis_switchctx, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { sis_newctx, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { sis_resctx, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { drm_adddraw, 1, 1 },
@@ -80,18 +86,16 @@ static drm_ioctl_desc_t sis_ioctls[] = {
[DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { sis_lock, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { sis_unlock, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { drm_finish, 1, 0 },
-
-#ifdef DRM_AGP
- [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 },
+#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, 1},
+ [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
-
/* FB Memory Management */
[DRM_IOCTL_NR(SIS_IOCTL_FB_ALLOC)] = { sis_fb_alloc, 1, 1 },
[DRM_IOCTL_NR(SIS_IOCTL_FB_FREE)] = { sis_fb_free, 1, 1 },
@@ -114,10 +118,25 @@ static drm_ioctl_desc_t sis_ioctls[] = {
static char *sis = NULL;
#endif
-MODULE_AUTHOR("Precision Insight, Inc., Cedar Park, Texas.");
+MODULE_AUTHOR("VA Linux Systems, Inc.");
MODULE_DESCRIPTION("sis");
MODULE_PARM(sis, "s");
+#ifndef MODULE
+/* sis_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 sis_options(char *str)
+{
+ drm_parse_options(str);
+ return 1;
+}
+
+__setup("sis=", sis_options);
+#endif
+
static int sis_setup(drm_device_t *dev)
{
int i;
@@ -219,30 +238,22 @@ static int sis_takedown(drm_device_t *dev)
}
dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
}
-#ifdef DRM_AGP
- /* Clear AGP information */
+#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 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);
+ drm_agp_mem_t *temp;
+ drm_agp_mem_t *temp_next;
+
+ temp = dev->agp->memory;
+ while(temp != NULL) {
+ temp_next = temp->next;
+ drm_free_agp(temp->memory, temp->pages);
+ drm_free(temp, sizeof(*temp), DRM_MEM_AGPLISTS);
+ temp = temp_next;
}
- dev->agp->memory = NULL;
-
- if (dev->agp->acquired && drm_agp.release)
- (*drm_agp.release)();
-
- dev->agp->acquired = 0;
- dev->agp->enabled = 0;
- }
+ if (dev->agp->acquired) (*drm_agp.release)();
+ }
#endif
-
/* Clear vma list (only built for debugging) */
if (dev->vmalist) {
for (vma = dev->vmalist; vma; vma = vma_next) {
@@ -303,7 +314,7 @@ static int sis_takedown(drm_device_t *dev)
/* sis_init is called via init_module at module load time, or via
* linux/init/main.c (this is not currently supported). */
-int sis_init(void)
+static int sis_init(void)
{
int retcode;
drm_device_t *dev = &sis_device;
@@ -327,27 +338,16 @@ int sis_init(void)
drm_mem_init();
drm_proc_init(dev);
-
-#ifdef DRM_AGP
- DRM_DEBUG("doing agp init\n");
+#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
dev->agp = drm_agp_init();
- if(dev->agp == NULL) {
- /* TODO, if no agp, run MMIO mode */
- DRM_INFO("The sis drm module requires the agpgart module"
- " to function correctly\nPlease load the agpgart"
- " module before you load the mga module\n");
- drm_proc_cleanup();
- misc_deregister(&sis_misc);
- sis_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);
-#endif
#endif
+ if((retcode = drm_ctxbitmap_init(dev))) {
+ DRM_ERROR("Cannot allocate memory for context bitmap.\n");
+ drm_proc_cleanup();
+ misc_deregister(&sis_misc);
+ sis_takedown(dev);
+ return retcode;
+ }
DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
SIS_NAME,
@@ -362,7 +362,7 @@ int sis_init(void)
/* sis_cleanup is called via cleanup_module at module unload time. */
-void sis_cleanup(void)
+static void sis_cleanup(void)
{
drm_device_t *dev = &sis_device;
@@ -374,27 +374,21 @@ void sis_cleanup(void)
} else {
DRM_INFO("Module unloaded\n");
}
-#ifdef DRM_AGP
-#ifdef CONFIG_MTRR
- if(dev->agp && dev->agp->agp_mtrr) {
- int retval;
- retval = mtrr_del(dev->agp->agp_mtrr,
- dev->agp->agp_info.aper_base,
- dev->agp->agp_info.aper_size * 1024*1024);
- DRM_DEBUG("mtrr_del = %d\n", retval);
- }
-#endif
-#endif
-
+ drm_ctxbitmap_cleanup(dev);
sis_takedown(dev);
-#ifdef DRM_AGP
+#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(sis_init);
+module_exit(sis_cleanup);
+
+
int sis_version(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
{
@@ -433,11 +427,12 @@ int sis_open(struct inode *inode, struct file *filp)
{
drm_device_t *dev = &sis_device;
int retcode = 0;
-
+
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++) {
@@ -452,13 +447,17 @@ int sis_open(struct inode *inode, struct file *filp)
int sis_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;
- DRM_DEBUG("open_count = %d\n", dev->open_count);
+ 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) {
@@ -467,13 +466,17 @@ int sis_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 sis_takedown(dev);
}
spin_unlock(&dev->count_lock);
}
+
+ unlock_kernel();
return retcode;
}
@@ -588,7 +591,9 @@ int sis_lock(struct inode *inode, struct file *filp, unsigned int cmd,
/* Contention */
atomic_inc(&dev->total_sleeps);
current->state = TASK_INTERRUPTIBLE;
+#if 1
current->policy |= SCHED_YIELD;
+#endif
schedule();
if (signal_pending(current)) {
ret = -ERESTARTSYS;
@@ -689,21 +694,3 @@ int sis_unlock(struct inode *inode, struct file *filp, unsigned int cmd,
unblock_all_signals();
return 0;
}
-
-module_init(sis_init);
-module_exit(sis_cleanup);
-
-#ifndef MODULE
-/*
- * sis_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_options.
- */
-static int __init sis_options(char *str)
-{
- drm_parse_options(str);
- return 1;
-}
-
-__setup("sis=", sis_options);
-#endif