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Move Mesa to xc/extras Update to the latest Mesa 3.2 code Fix the Q3Demo 

bugs (white railgun and texture mapping) Simplify driver texture
    mapping routines Fix device driver for 2.3 kernels Improve performance
main
Daryll Strauss 1999-12-07 03:37:16 +00:00
parent b6a28bfe98
commit e1dba5c3a7
14 changed files with 313 additions and 153 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
libdrm/xf86drm.c
View File

@ -1,6 +1,6 @@
/* xf86drm.c -- User-level interface to DRM device
* Created: Tue Jan 5 08:16:21 1999 by faith@precisioninsight.com
* Revised: Wed Aug 4 07:54:23 1999 by faith@precisioninsight.com
* Revised: Mon Dec 6 11:34:13 1999 by faith@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* All Rights Reserved.
@ -25,7 +25,7 @@
* DEALINGS IN THE SOFTWARE.
*
* $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/xf86drm.c,v 1.43 1999/08/04 18:14:43 faith Exp $
* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/xf86drm.c,v 1.4 1999/09/25 14:37:49 dawes Exp $
* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/xf86drm.c,v 1.5 1999/10/13 22:33:07 dawes Exp $
*
*/
@ -57,7 +57,7 @@
# ifdef DRM_USE_MALLOC
# define _DRM_MALLOC malloc
# define _DRM_FREE free
extern int xf86InstallSIGIOHandler(int fd, void (*f)(int));
extern int xf86InstallSIGIOHandler(int fd, void (*f)(int, void *), void *);
extern int xf86RemoveSIGIOHandler(int fd);
# else
# include <Xlibint.h>
@ -174,6 +174,28 @@ static int drmOpenDevice(const char *path, long dev,
return drm_open(path);
}
static int drmOpenByBusid(const char *busid)
{
int i;
char dev_name[64];
char *buf;
int fd;
for (i = 0; i < 8; i++) {
sprintf(dev_name, "/dev/graphics/card%d", i);
if ((fd = drm_open(dev_name)) >= 0) {
buf = drmGetBusid(fd);
if (buf && !strcmp(buf, busid)) {
drmFreeBusid(buf);
return fd;
}
if (buf) drmFreeBusid(buf);
close(fd);
}
}
return -1;
}
static int drmOpenByName(const char *name)
{
int i;
@ -237,29 +259,6 @@ static int drmOpenByName(const char *name)
return -1;
}
static int drmOpenByBusid(const char *busid)
{
int i;
char dev_name[64];
char *buf;
int fd;
for (i = 0; i < 8; i++) {
sprintf(dev_name, "/dev/graphics/card%d", i);
if ((fd = drm_open(dev_name)) >= 0) {
buf = drmGetBusid(fd);
if (buf && !strcmp(buf, busid)) {
drmFreeBusid(buf);
return fd;
}
if (buf) drmFreeBusid(buf);
close(fd);
}
}
return -1;
}
/* drmOpen looks up the specified name and busid, and opens the device
found. The entry in /dev/graphics is created if necessary (and if root).
A file descriptor is returned. On error, the return value is
@ -838,7 +837,7 @@ void *drmGetContextTag(int fd, drmContext context)
}
#if defined(XFree86Server) || defined(DRM_USE_MALLOC)
static void drmSIGIOHandler(int interrupt)
static void drmSIGIOHandler(int interrupt, void *closure)
{
unsigned long key;
void *value;
@ -890,7 +889,7 @@ int drmInstallSIGIOHandler(int fd, void (*f)(int, void *, void *))
entry = drmGetEntry(fd);
entry->f = f;
return xf86InstallSIGIOHandler(fd, drmSIGIOHandler);
return xf86InstallSIGIOHandler(fd, drmSIGIOHandler, 0);
}
int drmRemoveSIGIOHandler(int fd)

91
linux-core/drmP.h
View File

@ -1,6 +1,6 @@
/* drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*-
* Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com
* Revised: Tue Oct 12 08:51:07 1999 by faith@precisioninsight.com
* Revised: Mon Dec 6 16:06:49 1999 by faith@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* All rights reserved.
@ -83,33 +83,77 @@
#define DRM_MEM_BUFLISTS 14
/* Backward compatibility section */
/* _PAGE_WT changed to _PAGE_PWT in 2.2.6 */
#ifndef _PAGE_PWT
/* The name of _PAGE_WT was changed to
_PAGE_PWT in Linux 2.2.6 */
#define _PAGE_PWT _PAGE_WT
#endif
/* Wait queue declarations changes in 2.3.1 */
/* Wait queue declarations changed in 2.3.1 */
#ifndef DECLARE_WAITQUEUE
#define DECLARE_WAITQUEUE(w,c) struct wait_queue w = { c, NULL }
typedef struct wait_queue *wait_queue_head_t;
#define init_waitqueue_head(q) *q = NULL;
#endif
#define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock)
#define _DRM_CAS(lock,old,new,__ret) \
do { \
int __dummy; /* Can't mark eax as clobbered */ \
__asm__ __volatile__( \
"lock ; cmpxchg %4,%1\n\t" \
"setnz %0" \
: "=d" (__ret), \
"=m" (__drm_dummy_lock(lock)), \
"=a" (__dummy) \
: "2" (old), \
"r" (new)); \
} while (0)
/* _PAGE_4M changed to _PAGE_PSE in 2.3.23 */
#ifndef _PAGE_PSE
#define _PAGE_PSE _PAGE_4M
#endif
/* vm_offset changed to vm_pgoff in 2.3.25 */
#if LINUX_VERSION_CODE < 0x020319
#define VM_OFFSET(vma) ((vma)->vm_offset)
#else
#define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
#endif
/* *_nopage return values defined in 2.3.26 */
#ifndef NOPAGE_SIGBUS
#define NOPAGE_SIGBUS 0
#endif
#ifndef NOPAGE_OOM
#define NOPAGE_OOM 0
#endif
/* Generic cmpxchg added in 2.3.x */
#if CPU != 386
#ifndef __HAVE_ARCH_CMPXCHG
/* Include this here so that driver can be
used with older kernels. */
static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
unsigned long new, int size)
{
unsigned long prev;
switch (size) {
case 1:
__asm__ __volatile__(LOCK_PREFIX "cmpxchgb %b1,%2"
: "=a"(prev)
: "q"(new), "m"(*__xg(ptr)), "0"(old)
: "memory");
return prev;
case 2:
__asm__ __volatile__(LOCK_PREFIX "cmpxchgw %w1,%2"
: "=a"(prev)
: "q"(new), "m"(*__xg(ptr)), "0"(old)
: "memory");
return prev;
case 4:
__asm__ __volatile__(LOCK_PREFIX "cmpxchgl %1,%2"
: "=a"(prev)
: "q"(new), "m"(*__xg(ptr)), "0"(old)
: "memory");
return prev;
}
return old;
}
#define cmpxchg(ptr,o,n) \
((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o), \
(unsigned long)(n),sizeof(*(ptr))))
#endif
#else
/* Compiling for a 386 proper... */
#error DRI not supported on Intel 80386
#endif
/* Macros to make printk easier */
#define DRM_ERROR(fmt, arg...) \
@ -436,6 +480,7 @@ extern ssize_t drm_read(struct file *filp, char *buf, size_t count,
extern int drm_write_string(drm_device_t *dev, const char *s);
/* Mapping support (vm.c) */
#if LINUX_VERSION_CODE < 0x020317
extern unsigned long drm_vm_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access);
@ -445,6 +490,18 @@ extern unsigned long drm_vm_shm_nopage(struct vm_area_struct *vma,
extern unsigned long drm_vm_dma_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access);
#else
/* Return type changed in 2.3.23 */
extern struct page *drm_vm_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access);
extern struct page *drm_vm_shm_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access);
extern struct page *drm_vm_dma_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access);
#endif
extern void drm_vm_open(struct vm_area_struct *vma);
extern void drm_vm_close(struct vm_area_struct *vma);
extern int drm_mmap_dma(struct file *filp,

5
linux/bufs.c
View File

@ -1,6 +1,6 @@
/* bufs.c -- IOCTLs to manage buffers -*- linux-c -*-
* Created: Tue Feb 2 08:37:54 1999 by faith@precisioninsight.com
* Revised: Fri Aug 20 22:48:10 1999 by faith@precisioninsight.com
* Revised: Fri Dec 3 12:11:11 1999 by faith@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* All Rights Reserved.
@ -89,10 +89,11 @@ int drm_addmap(struct inode *inode, struct file *filp, unsigned int cmd,
case _DRM_SHM:
DRM_DEBUG("%ld %d\n", map->size, drm_order(map->size));
map->handle = (void *)drm_alloc_pages(drm_order(map->size)
- PAGE_SHIFT,
DRM_MEM_SAREA);
DRM_DEBUG("%ld %d %p\n", map->size, drm_order(map->size),
map->handle);
if (!map->handle) {
drm_free(map, sizeof(*map), DRM_MEM_MAPS);
return -ENOMEM;

5
linux/drm.h
View File

@ -1,6 +1,6 @@
/* drm.h -- Header for Direct Rendering Manager -*- linux-c -*-
* Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com
* Revised: Fri Aug 20 13:08:18 1999 by faith@precisioninsight.com
* Revised: Mon Dec 6 17:11:19 1999 by faith@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* All rights reserved.
@ -27,6 +27,9 @@
* $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drm.h,v 1.46 1999/08/20 20:00:53 faith Exp $
* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drm.h,v 1.1 1999/09/25 14:37:58 dawes Exp $
*
* Acknowledgements:
* Dec 1999, Richard Henderson <rth@twiddle.net>, move to generic cmpxchg.
*
*/
#ifndef _DRM_H_

91
linux/drmP.h
View File

@ -1,6 +1,6 @@
/* drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*-
* Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com
* Revised: Tue Oct 12 08:51:07 1999 by faith@precisioninsight.com
* Revised: Mon Dec 6 16:06:49 1999 by faith@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* All rights reserved.
@ -83,33 +83,77 @@
#define DRM_MEM_BUFLISTS 14
/* Backward compatibility section */
/* _PAGE_WT changed to _PAGE_PWT in 2.2.6 */
#ifndef _PAGE_PWT
/* The name of _PAGE_WT was changed to
_PAGE_PWT in Linux 2.2.6 */
#define _PAGE_PWT _PAGE_WT
#endif
/* Wait queue declarations changes in 2.3.1 */
/* Wait queue declarations changed in 2.3.1 */
#ifndef DECLARE_WAITQUEUE
#define DECLARE_WAITQUEUE(w,c) struct wait_queue w = { c, NULL }
typedef struct wait_queue *wait_queue_head_t;
#define init_waitqueue_head(q) *q = NULL;
#endif
#define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock)
#define _DRM_CAS(lock,old,new,__ret) \
do { \
int __dummy; /* Can't mark eax as clobbered */ \
__asm__ __volatile__( \
"lock ; cmpxchg %4,%1\n\t" \
"setnz %0" \
: "=d" (__ret), \
"=m" (__drm_dummy_lock(lock)), \
"=a" (__dummy) \
: "2" (old), \
"r" (new)); \
} while (0)
/* _PAGE_4M changed to _PAGE_PSE in 2.3.23 */
#ifndef _PAGE_PSE
#define _PAGE_PSE _PAGE_4M
#endif
/* vm_offset changed to vm_pgoff in 2.3.25 */
#if LINUX_VERSION_CODE < 0x020319
#define VM_OFFSET(vma) ((vma)->vm_offset)
#else
#define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
#endif
/* *_nopage return values defined in 2.3.26 */
#ifndef NOPAGE_SIGBUS
#define NOPAGE_SIGBUS 0
#endif
#ifndef NOPAGE_OOM
#define NOPAGE_OOM 0
#endif
/* Generic cmpxchg added in 2.3.x */
#if CPU != 386
#ifndef __HAVE_ARCH_CMPXCHG
/* Include this here so that driver can be
used with older kernels. */
static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
unsigned long new, int size)
{
unsigned long prev;
switch (size) {
case 1:
__asm__ __volatile__(LOCK_PREFIX "cmpxchgb %b1,%2"
: "=a"(prev)
: "q"(new), "m"(*__xg(ptr)), "0"(old)
: "memory");
return prev;
case 2:
__asm__ __volatile__(LOCK_PREFIX "cmpxchgw %w1,%2"
: "=a"(prev)
: "q"(new), "m"(*__xg(ptr)), "0"(old)
: "memory");
return prev;
case 4:
__asm__ __volatile__(LOCK_PREFIX "cmpxchgl %1,%2"
: "=a"(prev)
: "q"(new), "m"(*__xg(ptr)), "0"(old)
: "memory");
return prev;
}
return old;
}
#define cmpxchg(ptr,o,n) \
((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o), \
(unsigned long)(n),sizeof(*(ptr))))
#endif
#else
/* Compiling for a 386 proper... */
#error DRI not supported on Intel 80386
#endif
/* Macros to make printk easier */
#define DRM_ERROR(fmt, arg...) \
@ -436,6 +480,7 @@ extern ssize_t drm_read(struct file *filp, char *buf, size_t count,
extern int drm_write_string(drm_device_t *dev, const char *s);
/* Mapping support (vm.c) */
#if LINUX_VERSION_CODE < 0x020317
extern unsigned long drm_vm_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access);
@ -445,6 +490,18 @@ extern unsigned long drm_vm_shm_nopage(struct vm_area_struct *vma,
extern unsigned long drm_vm_dma_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access);
#else
/* Return type changed in 2.3.23 */
extern struct page *drm_vm_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access);
extern struct page *drm_vm_shm_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access);
extern struct page *drm_vm_dma_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access);
#endif
extern void drm_vm_open(struct vm_area_struct *vma);
extern void drm_vm_close(struct vm_area_struct *vma);
extern int drm_mmap_dma(struct file *filp,

11
linux/fops.c
View File

@ -1,6 +1,6 @@
/* fops.c -- File operations for DRM -*- linux-c -*-
* Created: Mon Jan 4 08:58:31 1999 by faith@precisioninsight.com
* Revised: Tue Oct 12 08:48:59 1999 by faith@precisioninsight.com
* Revised: Fri Dec 3 10:26:26 1999 by faith@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* All Rights Reserved.
@ -75,8 +75,8 @@ int drm_flush(struct file *filp)
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
DRM_DEBUG("pid = %d, device = 0x%x, open_count = %d, f_count = %d\n",
current->pid, dev->device, dev->open_count, filp->f_count);
DRM_DEBUG("pid = %d, device = 0x%x, open_count = %d\n",
current->pid, dev->device, dev->open_count);
return 0;
}
@ -211,7 +211,12 @@ int drm_write_string(drm_device_t *dev, const char *s)
send -= count;
}
#if LINUX_VERSION_CODE < 0x020315
if (dev->buf_async) kill_fasync(dev->buf_async, SIGIO);
#else
/* Parameter added in 2.3.21 */
if (dev->buf_async) kill_fasync(dev->buf_async, SIGIO, POLL_IN);
#endif
DRM_DEBUG("waking\n");
wake_up_interruptible(&dev->buf_readers);
return 0;

33
linux/lists.c
View File

@ -1,6 +1,6 @@
/* lists.c -- Buffer list handling routines -*- linux-c -*-
* Created: Mon Apr 19 20:54:22 1999 by faith@precisioninsight.com
* Revised: Fri Aug 20 09:27:01 1999 by faith@precisioninsight.com
* Revised: Mon Dec 6 16:04:44 1999 by faith@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* All Rights Reserved.
@ -130,9 +130,7 @@ int drm_freelist_destroy(drm_freelist_t *bl)
int drm_freelist_put(drm_device_t *dev, drm_freelist_t *bl, drm_buf_t *buf)
{
unsigned int old;
unsigned int new;
char failed;
drm_buf_t *old, *prev;
int count = 0;
drm_device_dma_t *dma = dev->dma;
@ -155,15 +153,14 @@ int drm_freelist_put(drm_device_t *dev, drm_freelist_t *bl, drm_buf_t *buf)
#endif
buf->list = DRM_LIST_FREE;
do {
old = (unsigned long)bl->next;
buf->next = (void *)old;
new = (unsigned long)buf;
_DRM_CAS(&bl->next, old, new, failed);
old = bl->next;
bl->next = old;
prev = cmpxchg(&bl->next, old, buf);
if (++count > DRM_LOOPING_LIMIT) {
DRM_ERROR("Looping\n");
return 1;
}
} while (failed);
} while (prev != old);
atomic_inc(&bl->count);
if (atomic_read(&bl->count) > dma->buf_count) {
DRM_ERROR("%d of %d buffers free after addition of %d\n",
@ -180,9 +177,7 @@ int drm_freelist_put(drm_device_t *dev, drm_freelist_t *bl, drm_buf_t *buf)
static drm_buf_t *drm_freelist_try(drm_freelist_t *bl)
{
unsigned int old;
unsigned int new;
char failed;
drm_buf_t *old, *new, *prev;
drm_buf_t *buf;
int count = 0;
@ -190,20 +185,18 @@ static drm_buf_t *drm_freelist_try(drm_freelist_t *bl)
/* Get buffer */
do {
old = (unsigned int)bl->next;
if (!old) {
return NULL;
}
new = (unsigned long)bl->next->next;
_DRM_CAS(&bl->next, old, new, failed);
old = bl->next;
if (!old) return NULL;
new = bl->next->next;
prev = cmpxchg(&bl->next, old, new);
if (++count > DRM_LOOPING_LIMIT) {
DRM_ERROR("Looping\n");
return NULL;
}
} while (failed);
} while (prev != old);
atomic_dec(&bl->count);
buf = (drm_buf_t *)old;
buf = old;
buf->next = NULL;
buf->list = DRM_LIST_NONE;
DRM_DEBUG("%d, count = %d, wfh = %d, w%d, p%d\n",

26
linux/lock.c
View File

@ -1,6 +1,6 @@
/* lock.c -- IOCTLs for locking -*- linux-c -*-
* Created: Tue Feb 2 08:37:54 1999 by faith@precisioninsight.com
* Revised: Tue Oct 12 08:51:06 1999 by faith@precisioninsight.com
* Revised: Mon Dec 6 16:04:44 1999 by faith@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* All Rights Reserved.
@ -48,17 +48,15 @@ int drm_unblock(struct inode *inode, struct file *filp, unsigned int cmd,
int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context)
{
unsigned int old;
unsigned int new;
char failed;
unsigned int old, new, prev;
DRM_DEBUG("%d attempts\n", context);
do {
old = *lock;
if (old & _DRM_LOCK_HELD) new = old | _DRM_LOCK_CONT;
else new = context | _DRM_LOCK_HELD;
_DRM_CAS(lock, old, new, failed);
} while (failed);
prev = cmpxchg(lock, old, new);
} while (prev != old);
if (_DRM_LOCKING_CONTEXT(old) == context) {
if (old & _DRM_LOCK_HELD) {
if (context != DRM_KERNEL_CONTEXT) {
@ -83,16 +81,14 @@ int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context)
int drm_lock_transfer(drm_device_t *dev,
__volatile__ unsigned int *lock, unsigned int context)
{
unsigned int old;
unsigned int new;
char failed;
unsigned int old, new, prev;
dev->lock.pid = 0;
do {
old = *lock;
new = context | _DRM_LOCK_HELD;
_DRM_CAS(lock, old, new, failed);
} while (failed);
prev = cmpxchg(lock, old, new);
} while (prev != old);
DRM_DEBUG("%d => %d\n", _DRM_LOCKING_CONTEXT(old), context);
return 1;
}
@ -100,9 +96,7 @@ int drm_lock_transfer(drm_device_t *dev,
int drm_lock_free(drm_device_t *dev,
__volatile__ unsigned int *lock, unsigned int context)
{
unsigned int old;
unsigned int new;
char failed;
unsigned int old, new, prev;
pid_t pid = dev->lock.pid;
DRM_DEBUG("%d\n", context);
@ -110,8 +104,8 @@ int drm_lock_free(drm_device_t *dev,
do {
old = *lock;
new = 0;
_DRM_CAS(lock, old, new, failed);
} while (failed);
prev = cmpxchg(lock, old, new);
} while (prev != old);
if (_DRM_LOCK_IS_HELD(old) && _DRM_LOCKING_CONTEXT(old) != context) {
DRM_ERROR("%d freed heavyweight lock held by %d (pid %d)\n",
context,

21
linux/memory.c
View File

@ -1,6 +1,6 @@
/* memory.c -- Memory management wrappers for DRM -*- linux-c -*-
* Created: Thu Feb 4 14:00:34 1999 by faith@precisioninsight.com
* Revised: Fri Aug 20 13:04:33 1999 by faith@precisioninsight.com
* Revised: Mon Dec 6 10:28:18 1999 by faith@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* All Rights Reserved.
@ -42,7 +42,7 @@ typedef struct drm_mem_stats {
} drm_mem_stats_t;
static spinlock_t drm_mem_lock = SPIN_LOCK_UNLOCKED;
static unsigned long drm_ram_available = 0;
static unsigned long drm_ram_available = 0; /* In pages */
static unsigned long drm_ram_used = 0;
static drm_mem_stats_t drm_mem_stats[] = {
[DRM_MEM_DMA] = { "dmabufs" },
@ -77,7 +77,12 @@ void drm_mem_init(void)
}
si_meminfo(&si);
#if LINUX_VERSION_CODE < 0x020317
/* Changed to page count in 2.3.23 */
drm_ram_available = si.totalram >> PAGE_SHIFT;
#else
drm_ram_available = si.totalram;
#endif
drm_ram_used = 0;
}
@ -95,10 +100,11 @@ static int _drm_mem_info(char *buf, char **start, off_t offset, int len,
" | outstanding \n");
DRM_PROC_PRINT("type alloc freed fail bytes freed"
" | allocs bytes\n\n");
DRM_PROC_PRINT("%-9.9s %5d %5d %4d %10lu |\n",
"system", 0, 0, 0, drm_ram_available);
DRM_PROC_PRINT("%-9.9s %5d %5d %4d %10lu |\n",
"locked", 0, 0, 0, drm_ram_used);
DRM_PROC_PRINT("%-9.9s %5d %5d %4d %10lu kB |\n",
"system", 0, 0, 0,
drm_ram_available << (PAGE_SHIFT - 10));
DRM_PROC_PRINT("%-9.9s %5d %5d %4d %10lu kB |\n",
"locked", 0, 0, 0, drm_ram_used >> 10);
DRM_PROC_PRINT("\n");
for (pt = drm_mem_stats; pt->name; pt++) {
DRM_PROC_PRINT("%-9.9s %5d %5d %4d %10lu %10lu | %6d %10ld\n",
@ -207,7 +213,8 @@ unsigned long drm_alloc_pages(int order, int area)
unsigned int sz;
spin_lock(&drm_mem_lock);
if (drm_ram_used > +(DRM_RAM_PERCENT * drm_ram_available) / 100) {
if ((drm_ram_used >> PAGE_SHIFT)
> (DRM_RAM_PERCENT * drm_ram_available) / 100) {
spin_unlock(&drm_mem_lock);
return 0;
}

7
linux/proc.c
View File

@ -1,6 +1,6 @@
/* proc.c -- /proc support for DRM -*- linux-c -*-
* Created: Mon Jan 11 09:48:47 1999 by faith@precisioninsight.com
* Revised: Fri Aug 20 11:31:48 1999 by faith@precisioninsight.com
* Revised: Fri Dec 3 09:44:16 1999 by faith@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* All Rights Reserved.
@ -382,7 +382,8 @@ static int _drm_vma_info(char *buf, char **start, off_t offset, int len,
vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
vma->vm_flags & VM_LOCKED ? 'l' : '-',
vma->vm_flags & VM_IO ? 'i' : '-',
vma->vm_offset );
VM_OFFSET(vma));
#if defined(__i386__)
pgprot = pgprot_val(vma->vm_page_prot);
DRM_PROC_PRINT(" %c%c%c%c%c%c%c%c%c",
@ -393,7 +394,7 @@ static int _drm_vma_info(char *buf, char **start, off_t offset, int len,
pgprot & _PAGE_PCD ? 'u' : 'c',
pgprot & _PAGE_ACCESSED ? 'a' : '-',
pgprot & _PAGE_DIRTY ? 'd' : '-',
pgprot & _PAGE_4M ? 'm' : 'k',
pgprot & _PAGE_PSE ? 'm' : 'k',
pgprot & _PAGE_GLOBAL ? 'g' : 'l' );
#endif
DRM_PROC_PRINT("\n");

65
linux/vm.c
View File

@ -1,6 +1,6 @@
/* vm.c -- Memory mapping for DRM -*- linux-c -*-
* Created: Mon Jan 4 08:58:31 1999 by faith@precisioninsight.com
* Revised: Fri Aug 20 22:48:11 1999 by faith@precisioninsight.com
* Revised: Mon Dec 6 16:54:35 1999 by faith@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* All Rights Reserved.
@ -50,18 +50,32 @@ struct vm_operations_struct drm_vm_dma_ops = {
close: drm_vm_close,
};
#if LINUX_VERSION_CODE < 0x020317
unsigned long drm_vm_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access)
#else
/* Return type changed in 2.3.23 */
struct page *drm_vm_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access)
#endif
{
DRM_DEBUG("0x%08lx, %d\n", address, write_access);
return 0; /* Disallow mremap */
return NOPAGE_SIGBUS; /* Disallow mremap */
}
#if LINUX_VERSION_CODE < 0x020317
unsigned long drm_vm_shm_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access)
#else
/* Return type changed in 2.3.23 */
struct page *drm_vm_shm_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access)
#endif
{
drm_file_t *priv = vma->vm_file->private_data;
drm_device_t *dev = priv->dev;
@ -69,8 +83,8 @@ unsigned long drm_vm_shm_nopage(struct vm_area_struct *vma,
unsigned long offset;
unsigned long page;
if (address > vma->vm_end) return 0; /* Disallow mremap */
if (!dev->lock.hw_lock) return 0; /* Nothing allocated */
if (address > vma->vm_end) return NOPAGE_SIGBUS; /* Disallow mremap */
if (!dev->lock.hw_lock) return NOPAGE_OOM; /* Nothing allocated */
offset = address - vma->vm_start;
page = offset >> PAGE_SHIFT;
@ -78,12 +92,23 @@ unsigned long drm_vm_shm_nopage(struct vm_area_struct *vma,
atomic_inc(&mem_map[MAP_NR(physical)].count); /* Dec. by kernel */
DRM_DEBUG("0x%08lx (page %lu) => 0x%08lx\n", address, page, physical);
#if LINUX_VERSION_CODE < 0x020317
return physical;
#else
return mem_map + MAP_NR(physical);
#endif
}
#if LINUX_VERSION_CODE < 0x020317
unsigned long drm_vm_dma_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access)
#else
/* Return type changed in 2.3.23 */
struct page *drm_vm_dma_nopage(struct vm_area_struct *vma,
unsigned long address,
int write_access)
#endif
{
drm_file_t *priv = vma->vm_file->private_data;
drm_device_t *dev = priv->dev;
@ -92,17 +117,21 @@ unsigned long drm_vm_dma_nopage(struct vm_area_struct *vma,
unsigned long offset;
unsigned long page;
if (!dma) return 0; /* Error */
if (address > vma->vm_end) return 0; /* Disallow mremap */
if (!dma->pagelist) return 0; /* Nothing allocated */
if (!dma) return NOPAGE_SIGBUS; /* Error */
if (address > vma->vm_end) return NOPAGE_SIGBUS; /* Disallow mremap */
if (!dma->pagelist) return NOPAGE_OOM ; /* Nothing allocated */
offset = address - vma->vm_start; /* vm_offset should be 0 */
offset = address - vma->vm_start; /* vm_[pg]off[set] should be 0 */
page = offset >> PAGE_SHIFT;
physical = dma->pagelist[page] + (offset & (~PAGE_MASK));
atomic_inc(&mem_map[MAP_NR(physical)].count); /* Dec. by kernel */
DRM_DEBUG("0x%08lx (page %lu) => 0x%08lx\n", address, page, physical);
#if LINUX_VERSION_CODE < 0x020317
return physical;
#else
return mem_map + MAP_NR(physical);
#endif
}
void drm_vm_open(struct vm_area_struct *vma)
@ -169,7 +198,7 @@ int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
unsigned long length = vma->vm_end - vma->vm_start;
DRM_DEBUG("start = 0x%lx, end = 0x%lx, offset = 0x%lx\n",
vma->vm_start, vma->vm_end, vma->vm_offset);
vma->vm_start, vma->vm_end, VM_OFFSET(vma));
/* Length must match exact page count */
if ((length >> PAGE_SHIFT) != dma->page_count) return -EINVAL;
@ -195,9 +224,9 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
int i;
DRM_DEBUG("start = 0x%lx, end = 0x%lx, offset = 0x%lx\n",
vma->vm_start, vma->vm_end, vma->vm_offset);
vma->vm_start, vma->vm_end, VM_OFFSET(vma));
if (!vma->vm_offset) return drm_mmap_dma(filp, vma);
if (!VM_OFFSET(vma)) return drm_mmap_dma(filp, vma);
/* A sequential search of a linked list is
fine here because: 1) there will only be
@ -208,7 +237,7 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
bit longer. */
for (i = 0; i < dev->map_count; i++) {
map = dev->maplist[i];
if (map->offset == vma->vm_offset) break;
if (map->offset == VM_OFFSET(vma)) break;
}
if (i >= dev->map_count) return -EINVAL;
@ -222,7 +251,7 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
switch (map->type) {
case _DRM_FRAME_BUFFER:
case _DRM_REGISTERS:
if (vma->vm_offset >= __pa(high_memory)) {
if (VM_OFFSET(vma) >= __pa(high_memory)) {
#if defined(__i386__)
if (boot_cpu_data.x86 > 3) {
pgprot_val(vma->vm_page_prot) |= _PAGE_PCD;
@ -232,7 +261,7 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
vma->vm_flags |= VM_IO; /* not in core dump */
}
if (remap_page_range(vma->vm_start,
vma->vm_offset,
VM_OFFSET(vma),
vma->vm_end - vma->vm_start,
vma->vm_page_prot))
return -EAGAIN;
@ -249,7 +278,15 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
}
vma->vm_flags |= VM_LOCKED | VM_SHM; /* Don't swap */
if (map->flags & _DRM_READ_ONLY) {
#if defined(__i386__)
pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW;
#else
/* Ye gads this is ugly. With more thought
we could move this up higher and use
`protection_map' instead. */
vma->vm_page_prot = __pgprot(pte_val(pte_wrprotect(
__pte(pgprot_val(vma->vm_page_prot)))));
#endif
}

5
shared-core/drm.h
View File

@ -1,6 +1,6 @@
/* drm.h -- Header for Direct Rendering Manager -*- linux-c -*-
* Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com
* Revised: Fri Aug 20 13:08:18 1999 by faith@precisioninsight.com
* Revised: Mon Dec 6 17:11:19 1999 by faith@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* All rights reserved.
@ -27,6 +27,9 @@
* $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drm.h,v 1.46 1999/08/20 20:00:53 faith Exp $
* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drm.h,v 1.1 1999/09/25 14:37:58 dawes Exp $
*
* Acknowledgements:
* Dec 1999, Richard Henderson <rth@twiddle.net>, move to generic cmpxchg.
*
*/
#ifndef _DRM_H_

5
shared/drm.h
View File

@ -1,6 +1,6 @@
/* drm.h -- Header for Direct Rendering Manager -*- linux-c -*-
* Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com
* Revised: Fri Aug 20 13:08:18 1999 by faith@precisioninsight.com
* Revised: Mon Dec 6 17:11:19 1999 by faith@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* All rights reserved.
@ -27,6 +27,9 @@
* $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drm.h,v 1.46 1999/08/20 20:00:53 faith Exp $
* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drm.h,v 1.1 1999/09/25 14:37:58 dawes Exp $
*
* Acknowledgements:
* Dec 1999, Richard Henderson <rth@twiddle.net>, move to generic cmpxchg.
*
*/
#ifndef _DRM_H_

30
tests/drmstat.c
View File

@ -1,6 +1,6 @@
/* drmstat.c -- DRM device status and testing program
* Created: Tue Jan 5 08:19:24 1999 by faith@precisioninsight.com
* Revised: Sun Aug 1 11:02:00 1999 by faith@precisioninsight.com
* Revised: Mon Dec 6 10:33:46 1999 by faith@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* All Rights Reserved.
@ -218,8 +218,8 @@ int main(int argc, char **argv)
info->list[i].low_mark,
info->list[i].high_mark);
}
printf("===== /proc/drm/1/meminfo =====\n");
sprintf(buf, "cat /proc/drm/1/meminfo");
printf("===== /proc/graphics/0/mem =====\n");
sprintf(buf, "cat /proc/graphics/0/mem");
system(buf);
#if 1
if (!(bufs = drmMapBufs(fd))) {
@ -234,8 +234,8 @@ int main(int argc, char **argv)
bufs->list[i].total,
bufs->list[i].address);
}
printf("===== /proc/drm/1/vmainfo =====\n");
sprintf(buf, "cat /proc/drm/1/vmainfo");
printf("===== /proc/graphics/0/vma =====\n");
sprintf(buf, "cat /proc/graphics/0/vma");
system(buf);
#endif
break;
@ -249,8 +249,8 @@ int main(int argc, char **argv)
return 1;
}
printf("0x%08lx:0x%04lx added\n", offset, size);
printf("===== /proc/drm/1/meminfo =====\n");
sprintf(buf, "cat /proc/drm/1/meminfo");
printf("===== /proc/graphics/0/mem =====\n");
sprintf(buf, "cat /proc/graphics/0/mem");
system(buf);
break;
case 'r':
@ -266,8 +266,8 @@ int main(int argc, char **argv)
return 1;
}
printf("0x%08lx:0x%04lx added\n", offset, size);
printf("===== /proc/drm/1/meminfo =====\n");
sprintf(buf, "cat /proc/drm/1/meminfo");
printf("===== /proc/graphics/0/mem =====\n");
sprintf(buf, "cat /proc/graphics/0/mem");
system(buf);
break;
case 's':
@ -315,11 +315,11 @@ int main(int argc, char **argv)
printf("===== /proc/%d/maps =====\n", getpid());
sprintf(buf, "cat /proc/%d/maps", getpid());
system(buf);
printf("===== /proc/drm/1/meminfo =====\n");
sprintf(buf, "cat /proc/drm/1/meminfo");
printf("===== /proc/grphics/0/mem =====\n");
sprintf(buf, "cat /proc/graphics/0/mem");
system(buf);
printf("===== /proc/drm/1/vmainfo =====\n");
sprintf(buf, "cat /proc/drm/1/vmainfo");
printf("===== /proc/graphics/0/vma =====\n");
sprintf(buf, "cat /proc/graphics/0/vma");
system(buf);
printf("===== READING =====\n");
for (i = 0; i < 0x10; i++)
@ -336,8 +336,8 @@ int main(int argc, char **argv)
for (i = 0; i < 0x10; i++)
printf("%02x ", (unsigned int)((unsigned char *)address)[i]);
printf("\n");
printf("===== /proc/drm/1/vmainfo =====\n");
sprintf(buf, "cat /proc/drm/1/vmainfo");
printf("===== /proc/graphics/0/vma =====\n");
sprintf(buf, "cat /proc/graphics/0/vma");
system(buf);
break;
case 'L':