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Commit da501825 authored by Linus Torvalds's avatar Linus Torvalds
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Merge http://linux-sound.bkbits.net/linux-sound 

into home.osdl.org:/home/torvalds/v2.5/linux
parents c1fabdad 2a98ed00
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Showing with 724 additions and 597 deletions
drivers/char/drm/Kconfig
View file @ da501825
......@@ -75,9 +75,9 @@ config DRM_MGA
config DRM_SIS
tristate "SiS video cards"
depends on DRM && AGP && FB_SIS
depends on DRM && AGP
help
Choose this option if you have a SiS 630 or compatibel video
chipset. If M is selected the module will be called sis. AGP
and SiS FB support is required for this driver to work.
support is required for this driver to work.
drivers/char/drm/drmP.h
View file @ da501825
......@@ -551,7 +551,7 @@ typedef struct drm_device_dma {
*/
typedef struct drm_agp_mem {
unsigned long handle; /**< handle */
struct agp_memory *memory;
DRM_AGP_MEM *memory;
unsigned long bound; /**< address */
int pages;
struct drm_agp_mem *prev; /**< previous entry */
......@@ -564,7 +564,7 @@ typedef struct drm_agp_mem {
* \sa DRM(agp_init)() and drm_device::agp.
*/
typedef struct drm_agp_head {
struct agp_kern_info agp_info; /**< AGP device information */
DRM_AGP_KERN agp_info; /**< AGP device information */
drm_agp_mem_t *memory; /**< memory entries */
unsigned long mode; /**< AGP mode */
int enabled; /**< whether the AGP bus as been enabled */
......@@ -797,10 +797,10 @@ extern void *DRM(ioremap_nocache)(unsigned long offset, unsigned long size,
extern void DRM(ioremapfree)(void *pt, unsigned long size, drm_device_t *dev);
#if __REALLY_HAVE_AGP
extern struct agp_memory *DRM(alloc_agp)(int pages, u32 type);
extern int DRM(free_agp)(struct agp_memory *handle, int pages);
extern int DRM(bind_agp)(struct agp_memory *handle, unsigned int start);
extern int DRM(unbind_agp)(struct agp_memory *handle);
extern DRM_AGP_MEM *DRM(alloc_agp)(int pages, u32 type);
extern int DRM(free_agp)(DRM_AGP_MEM *handle, int pages);
extern int DRM(bind_agp)(DRM_AGP_MEM *handle, unsigned int start);
extern int DRM(unbind_agp)(DRM_AGP_MEM *handle);
#endif
/* Misc. IOCTL support (drm_ioctl.h) */
......@@ -905,8 +905,7 @@ extern int DRM(control)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
extern int DRM(irq_install)( drm_device_t *dev, int irq );
extern int DRM(irq_uninstall)( drm_device_t *dev );
extern irqreturn_t DRM(dma_service)( int irq, void *device,
struct pt_regs *regs );
extern irqreturn_t DRM(dma_service)( DRM_IRQ_ARGS );
extern void DRM(driver_irq_preinstall)( drm_device_t *dev );
extern void DRM(driver_irq_postinstall)( drm_device_t *dev );
extern void DRM(driver_irq_uninstall)( drm_device_t *dev );
......@@ -944,10 +943,10 @@ extern int DRM(agp_unbind)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(agp_bind)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern struct agp_memory *DRM(agp_allocate_memory)(size_t pages, u32 type);
extern int DRM(agp_free_memory)(struct agp_memory *handle);
extern int DRM(agp_bind_memory)(struct agp_memory *handle, off_t start);
extern int DRM(agp_unbind_memory)(struct agp_memory *handle);
extern DRM_AGP_MEM *DRM(agp_allocate_memory)(size_t pages, u32 type);
extern int DRM(agp_free_memory)(DRM_AGP_MEM *handle);
extern int DRM(agp_bind_memory)(DRM_AGP_MEM *handle, off_t start);
extern int DRM(agp_unbind_memory)(DRM_AGP_MEM *handle);
#endif
/* Stub support (drm_stub.h) */
......
drivers/char/drm/drm_agpsupport.h
View file @ da501825
......@@ -62,7 +62,7 @@ int DRM(agp_info)(struct inode *inode, struct file *filp,
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
struct agp_kern_info *kern;
DRM_AGP_KERN *kern;
drm_agp_info_t info;
if (!dev->agp || !dev->agp->acquired || !drm_agp->copy_info)
......@@ -198,7 +198,7 @@ int DRM(agp_alloc)(struct inode *inode, struct file *filp,
drm_device_t *dev = priv->dev;
drm_agp_buffer_t request;
drm_agp_mem_t *entry;
struct agp_memory *memory;
DRM_AGP_MEM *memory;
unsigned long pages;
u32 type;
......@@ -429,7 +429,7 @@ void DRM(agp_uninit)(void)
}
/** Calls drm_agp->allocate_memory() */
struct agp_memory *DRM(agp_allocate_memory)(size_t pages, u32 type)
DRM_AGP_MEM *DRM(agp_allocate_memory)(size_t pages, u32 type)
{
if (!drm_agp->allocate_memory)
return NULL;
......@@ -437,7 +437,7 @@ struct agp_memory *DRM(agp_allocate_memory)(size_t pages, u32 type)
}
/** Calls drm_agp->free_memory() */
int DRM(agp_free_memory)(struct agp_memory *handle)
int DRM(agp_free_memory)(DRM_AGP_MEM *handle)
{
if (!handle || !drm_agp->free_memory)
return 0;
......@@ -446,7 +446,7 @@ int DRM(agp_free_memory)(struct agp_memory *handle)
}
/** Calls drm_agp->bind_memory() */
int DRM(agp_bind_memory)(struct agp_memory *handle, off_t start)
int DRM(agp_bind_memory)(DRM_AGP_MEM *handle, off_t start)
{
if (!handle || !drm_agp->bind_memory)
return -EINVAL;
......@@ -454,7 +454,7 @@ int DRM(agp_bind_memory)(struct agp_memory *handle, off_t start)
}
/** Calls drm_agp->unbind_memory() */
int DRM(agp_unbind_memory)(struct agp_memory *handle)
int DRM(agp_unbind_memory)(DRM_AGP_MEM *handle)
{
if (!handle || !drm_agp->unbind_memory)
return -EINVAL;
......
drivers/char/drm/drm_memory.h
View file @ da501825
......@@ -333,25 +333,25 @@ void DRM(ioremapfree)(void *pt, unsigned long size, drm_device_t *dev)
#if __REALLY_HAVE_AGP
/** Wrapper around agp_allocate_memory() */
struct agp_memory *DRM(alloc_agp)(int pages, u32 type)
DRM_AGP_MEM *DRM(alloc_agp)(int pages, u32 type)
{
return DRM(agp_allocate_memory)(pages, type);
}
/** Wrapper around agp_free_memory() */
int DRM(free_agp)(struct agp_memory *handle, int pages)
int DRM(free_agp)(DRM_AGP_MEM *handle, int pages)
{
return DRM(agp_free_memory)(handle) ? 0 : -EINVAL;
}
/** Wrapper around agp_bind_memory() */
int DRM(bind_agp)(struct agp_memory *handle, unsigned int start)
int DRM(bind_agp)(DRM_AGP_MEM *handle, unsigned int start)
{
return DRM(agp_bind_memory)(handle, start);
}
/** Wrapper around agp_unbind_memory() */
int DRM(unbind_agp)(struct agp_memory *handle)
int DRM(unbind_agp)(DRM_AGP_MEM *handle)
{
return DRM(agp_unbind_memory)(handle);
}
......
drivers/char/drm/drm_memory_debug.h
View file @ da501825
......@@ -353,9 +353,9 @@ void DRM(ioremapfree)(void *pt, unsigned long size, drm_device_t *dev)
#if __REALLY_HAVE_AGP
agp_memory *DRM(alloc_agp)(int pages, u32 type)
DRM_AGP_MEM *DRM(alloc_agp)(int pages, u32 type)
{
agp_memory *handle;
DRM_AGP_MEM *handle;
if (!pages) {
DRM_MEM_ERROR(DRM_MEM_TOTALAGP, "Allocating 0 pages\n");
......@@ -376,7 +376,7 @@ agp_memory *DRM(alloc_agp)(int pages, u32 type)
return NULL;
}
int DRM(free_agp)(agp_memory *handle, int pages)
int DRM(free_agp)(DRM_AGP_MEM *handle, int pages)
{
int alloc_count;
int free_count;
......@@ -405,7 +405,7 @@ int DRM(free_agp)(agp_memory *handle, int pages)
return retval;
}
int DRM(bind_agp)(agp_memory *handle, unsigned int start)
int DRM(bind_agp)(DRM_AGP_MEM *handle, unsigned int start)
{
int retcode = -EINVAL;
......@@ -429,7 +429,7 @@ int DRM(bind_agp)(agp_memory *handle, unsigned int start)
return retcode;
}
int DRM(unbind_agp)(agp_memory *handle)
int DRM(unbind_agp)(DRM_AGP_MEM *handle)
{
int alloc_count;
int free_count;
......
drivers/char/drm/drm_os_linux.h
View file @ da501825
......@@ -33,8 +33,13 @@
#define DRM_DEVICE drm_file_t *priv = filp->private_data; \
drm_device_t *dev = priv->dev
/** IRQ handler arguments */
/** IRQ handler arguments and return type and values */
#define DRM_IRQ_ARGS int irq, void *arg, struct pt_regs *regs
/** AGP types */
#define DRM_AGP_MEM struct agp_memory
#define DRM_AGP_KERN struct agp_kern_info
/** Task queue handler arguments */
#define DRM_TASKQUEUE_ARGS void *arg
......
drivers/char/drm/gamma_dma.c
View file @ da501825
......@@ -116,13 +116,14 @@ static inline int gamma_dma_is_ready(drm_device_t *dev)
return (!GAMMA_READ(GAMMA_DMACOUNT));
}
irqreturn_t gamma_dma_service(int irq, void *device, struct pt_regs *regs)
irqreturn_t gamma_dma_service( DRM_IRQ_ARGS )
{
drm_device_t *dev = (drm_device_t *)device;
drm_device_t *dev = (drm_device_t *)arg;
drm_device_dma_t *dma = dev->dma;
drm_gamma_private_t *dev_priv =
(drm_gamma_private_t *)dev->dev_private;
/* FIXME: should check whether we're actually interested in the interrupt? */
atomic_inc(&dev->counts[6]); /* _DRM_STAT_IRQ */
while (GAMMA_READ(GAMMA_INFIFOSPACE) < 3)
......
drivers/char/drm/i830_irq.c
View file @ da501825
......@@ -35,9 +35,9 @@
#include <linux/delay.h>
irqreturn_t DRM(dma_service)(int irq, void *device, struct pt_regs *regs)
irqreturn_t DRM(dma_service)( DRM_IRQ_ARGS )
{
drm_device_t *dev = (drm_device_t *)device;
drm_device_t *dev = (drm_device_t *)arg;
drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
u16 temp;
......
drivers/char/drm/sis.h
View file @ da501825
......@@ -33,7 +33,11 @@
* Name it sisdrv_##x as there's a conflict with sis_free/malloc in the kernel
* that's used for fb devices
*/
#ifdef __linux__
#define DRM(x) sisdrv_##x
#else
#define DRM(x) sis_##x
#endif
/* General customization:
*/
......@@ -45,25 +49,18 @@
#define DRIVER_AUTHOR "SIS"
#define DRIVER_NAME "sis"
#define DRIVER_DESC "SIS 300/630/540"
#define DRIVER_DATE "20010503"
#define DRIVER_DATE "20030826"
#define DRIVER_MAJOR 1
#define DRIVER_MINOR 0
#define DRIVER_MINOR 1
#define DRIVER_PATCHLEVEL 0
#define DRIVER_IOCTLS \
[DRM_IOCTL_NR(SIS_IOCTL_FB_ALLOC)] = { sis_fb_alloc, 1, 0 }, \
[DRM_IOCTL_NR(SIS_IOCTL_FB_FREE)] = { sis_fb_free, 1, 0 }, \
/* AGP Memory Management */ \
[DRM_IOCTL_NR(SIS_IOCTL_AGP_INIT)] = { sisp_agp_init, 1, 0 }, \
[DRM_IOCTL_NR(SIS_IOCTL_AGP_ALLOC)] = { sisp_agp_alloc, 1, 0 }, \
[DRM_IOCTL_NR(SIS_IOCTL_AGP_FREE)] = { sisp_agp_free, 1, 0 }
#if 0 /* these don't appear to be defined */
/* SIS Stereo */
[DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { sis_control, 1, 1 },
[DRM_IOCTL_NR(SIS_IOCTL_FLIP)] = { sis_flip, 1, 1 },
[DRM_IOCTL_NR(SIS_IOCTL_FLIP_INIT)] = { sis_flip_init, 1, 1 },
[DRM_IOCTL_NR(SIS_IOCTL_FLIP_FINAL)] = { sis_flip_final, 1, 1 }
#endif
[DRM_IOCTL_NR(DRM_IOCTL_SIS_FB_ALLOC)] = { sis_fb_alloc, 1, 0 }, \
[DRM_IOCTL_NR(DRM_IOCTL_SIS_FB_FREE)] = { sis_fb_free, 1, 0 }, \
[DRM_IOCTL_NR(DRM_IOCTL_SIS_AGP_INIT)] = { sis_ioctl_agp_init, 1, 1 }, \
[DRM_IOCTL_NR(DRM_IOCTL_SIS_AGP_ALLOC)] = { sis_ioctl_agp_alloc, 1, 0 }, \
[DRM_IOCTL_NR(DRM_IOCTL_SIS_AGP_FREE)] = { sis_ioctl_agp_free, 1, 0 }, \
[DRM_IOCTL_NR(DRM_IOCTL_SIS_FB_INIT)] = { sis_fb_init, 1, 1 }
#define __HAVE_COUNTERS 5
......
drivers/char/drm/sis_drm.h
View file @ da501825
#ifndef _sis_drm_public_h_
#define _sis_drm_public_h_
#ifndef __SIS_DRM_H__
#define __SIS_DRM_H__
/* SiS specific ioctls */
#define SIS_IOCTL_FB_ALLOC DRM_IOWR(0x44, drm_sis_mem_t)
#define SIS_IOCTL_FB_FREE DRM_IOW( 0x45, drm_sis_mem_t)
#define SIS_IOCTL_AGP_INIT DRM_IOWR(0x53, drm_sis_agp_t)
#define SIS_IOCTL_AGP_ALLOC DRM_IOWR(0x54, drm_sis_mem_t)
#define SIS_IOCTL_AGP_FREE DRM_IOW( 0x55, drm_sis_mem_t)
#define SIS_IOCTL_FLIP DRM_IOW( 0x48, drm_sis_flip_t)
#define SIS_IOCTL_FLIP_INIT DRM_IO( 0x49)
#define SIS_IOCTL_FLIP_FINAL DRM_IO( 0x50)
#define DRM_IOCTL_SIS_FB_ALLOC DRM_IOWR(0x44, drm_sis_mem_t)
#define DRM_IOCTL_SIS_FB_FREE DRM_IOW( 0x45, drm_sis_mem_t)
#define DRM_IOCTL_SIS_AGP_INIT DRM_IOWR(0x53, drm_sis_agp_t)
#define DRM_IOCTL_SIS_AGP_ALLOC DRM_IOWR(0x54, drm_sis_mem_t)
#define DRM_IOCTL_SIS_AGP_FREE DRM_IOW( 0x55, drm_sis_mem_t)
#define DRM_IOCTL_SIS_FB_INIT DRM_IOW( 0x56, drm_sis_fb_t)
/*
#define DRM_IOCTL_SIS_FLIP DRM_IOW( 0x48, drm_sis_flip_t)
#define DRM_IOCTL_SIS_FLIP_INIT DRM_IO( 0x49)
#define DRM_IOCTL_SIS_FLIP_FINAL DRM_IO( 0x50)
*/
typedef struct {
int context;
unsigned int offset;
unsigned int size;
unsigned int free;
unsigned long free;
} drm_sis_mem_t;
typedef struct {
......@@ -24,23 +27,7 @@ typedef struct {
} drm_sis_agp_t;
typedef struct {
unsigned int left, right;
} drm_sis_flip_t;
#ifdef __KERNEL__
int sis_fb_alloc(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg);
int sis_fb_free(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg);
int sisp_agp_init(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg);
int sisp_agp_alloc(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg);
int sisp_agp_free(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg);
#endif
unsigned int offset, size;
} drm_sis_fb_t;
#endif
#endif /* __SIS_DRM_H__ */
drivers/char/drm/sis_drv.h
View file @ da501825
......@@ -28,18 +28,20 @@
#ifndef _SIS_DRV_H_
#define _SIS_DRV_H_
#include "sis_ds.h"
typedef struct drm_sis_private {
drm_map_t *buffers;
} drm_sis_private_t;
/* Stereo ? - this was never committed */
memHeap_t *AGPHeap;
memHeap_t *FBHeap;
} drm_sis_private_t;
int sis_flip(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg);
int sis_flip_init(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg);
int sis_flip_final(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg);
void flip_final(void);
extern int sis_fb_alloc( DRM_IOCTL_ARGS );
extern int sis_fb_free( DRM_IOCTL_ARGS );
extern int sis_ioctl_agp_init( DRM_IOCTL_ARGS );
extern int sis_ioctl_agp_alloc( DRM_IOCTL_ARGS );
extern int sis_ioctl_agp_free( DRM_IOCTL_ARGS );
extern int sis_fb_init( DRM_IOCTL_ARGS );
#endif
drivers/char/drm/sis_ds.c
View file @ da501825
......@@ -28,15 +28,9 @@
*
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <asm/io.h>
#include <linux/pci.h>
#include "sis.h"
#include "drmP.h"
#include "drm.h"
#include "sis_ds.h"
/* Set Data Structure, not check repeated value
......@@ -48,10 +42,10 @@ set_t *setInit(void)
int i;
set_t *set;
set = (set_t *)MALLOC(sizeof(set_t));
if (set) {
for(i = 0; i < SET_SIZE; i++){
set->list[i].free_next = i+1;
set = (set_t *)DRM(alloc)(sizeof(set_t), DRM_MEM_DRIVER);
if (set != NULL) {
for (i = 0; i < SET_SIZE; i++) {
set->list[i].free_next = i + 1;
set->list[i].alloc_next = -1;
}
set->list[SET_SIZE-1].free_next = -1;
......@@ -66,11 +60,10 @@ int setAdd(set_t *set, ITEM_TYPE item)
{
int free = set->free;
if(free != -1){
if (free != -1) {
set->list[free].val = item;
set->free = set->list[free].free_next;
}
else{
} else {
return 0;
}
......@@ -86,10 +79,11 @@ int setDel(set_t *set, ITEM_TYPE item)
int alloc = set->alloc;
int prev = -1;
while(alloc != -1){
if(set->list[alloc].val == item){
if(prev != -1)
set->list[prev].alloc_next = set->list[alloc].alloc_next;
while (alloc != -1) {
if (set->list[alloc].val == item) {
if (prev != -1)
set->list[prev].alloc_next =
set->list[alloc].alloc_next;
else
set->alloc = set->list[alloc].alloc_next;
break;
......@@ -98,7 +92,7 @@ int setDel(set_t *set, ITEM_TYPE item)
alloc = set->list[alloc].alloc_next;
}
if(alloc == -1)
if (alloc == -1)
return 0;
set->list[alloc].free_next = set->free;
......@@ -112,7 +106,7 @@ int setDel(set_t *set, ITEM_TYPE item)
int setFirst(set_t *set, ITEM_TYPE *item)
{
if(set->alloc == -1)
if (set->alloc == -1)
return 0;
*item = set->list[set->alloc].val;
......@@ -123,7 +117,7 @@ int setFirst(set_t *set, ITEM_TYPE *item)
int setNext(set_t *set, ITEM_TYPE *item)
{
if(set->trace == -1)
if (set->trace == -1)
return 0;
*item = set->list[set->trace].val;
......@@ -134,7 +128,7 @@ int setNext(set_t *set, ITEM_TYPE *item)
int setDestroy(set_t *set)
{
FREE(set);
DRM(free)(set, sizeof(set_t), DRM_MEM_DRIVER);
return 1;
}
......@@ -165,48 +159,16 @@ int setDestroy(set_t *set)
#define ISFREE(bptr) ((bptr)->free)
#define PRINTF(fmt, arg...) do{}while(0)
#define fprintf(fmt, arg...) do{}while(0)
static void *calloc(size_t nmemb, size_t size)
{
void *addr;
addr = kmalloc(nmemb*size, GFP_KERNEL);
if (addr)
memset(addr, 0, nmemb*size);
return addr;
}
#define free(n) kfree(n)
void mmDumpMemInfo( memHeap_t *heap )
{
TMemBlock *p;
PRINTF ("Memory heap %p:\n", heap);
if (heap == 0) {
PRINTF (" heap == 0\n");
} else {
p = (TMemBlock *)heap;
while (p) {
PRINTF (" Offset:%08x, Size:%08x, %c%c\n",p->ofs,p->size,
p->free ? '.':'U',
p->reserved ? 'R':'.');
p = p->next;
}
}
PRINTF ("End of memory blocks\n");
}
memHeap_t *mmInit(int ofs,
int size)
{
PMemBlock blocks;
if (size <= 0) {
if (size <= 0)
return 0;
}
blocks = (TMemBlock *) calloc(1,sizeof(TMemBlock));
if (blocks) {
blocks = (TMemBlock *)DRM(calloc)(1, sizeof(TMemBlock), DRM_MEM_DRIVER);
if (blocks != NULL) {
blocks->ofs = ofs;
blocks->size = size;
blocks->free = 1;
......@@ -215,6 +177,24 @@ memHeap_t *mmInit(int ofs,
return 0;
}
/* Checks if a pointer 'b' is part of the heap 'heap' */
int mmBlockInHeap(memHeap_t *heap, PMemBlock b)
{
TMemBlock *p;
if (heap == NULL || b == NULL)
return 0;
p = heap;
while (p != NULL && p != b) {
p = p->next;
}
if (p == b)
return 1;
else
return 0;
}
/* Kludgey workaround for existing i810 server. Remove soon.
*/
memHeap_t *mmAddRange( memHeap_t *heap,
......@@ -222,23 +202,22 @@ memHeap_t *mmAddRange( memHeap_t *heap,
int size )
{
PMemBlock blocks;
blocks = (TMemBlock *) calloc(2,sizeof(TMemBlock));
if (blocks) {
blocks = (TMemBlock *)DRM(calloc)(2, sizeof(TMemBlock), DRM_MEM_DRIVER);
if (blocks != NULL) {
blocks[0].size = size;
blocks[0].free = 1;
blocks[0].ofs = ofs;
blocks[0].next = &blocks[1];
/* Discontinuity - stops JoinBlock from trying to join non-adjacent
* ranges.
/* Discontinuity - stops JoinBlock from trying to join
* non-adjacent ranges.
*/
blocks[1].size = 0;
blocks[1].free = 0;
blocks[1].ofs = ofs+size;
blocks[1].next = (PMemBlock) heap;
blocks[1].next = (PMemBlock)heap;
return (memHeap_t *)blocks;
}
else
} else
return heap;
}
......@@ -250,7 +229,8 @@ static TMemBlock* SliceBlock(TMemBlock *p,
/* break left */
if (startofs > p->ofs) {
newblock = (TMemBlock*) calloc(1,sizeof(TMemBlock));
newblock = (TMemBlock*) DRM(calloc)(1, sizeof(TMemBlock),
DRM_MEM_DRIVER);
newblock->ofs = startofs;
newblock->size = p->size - (startofs - p->ofs);
newblock->free = 1;
......@@ -262,7 +242,8 @@ static TMemBlock* SliceBlock(TMemBlock *p,
/* break right */
if (size < p->size) {
newblock = (TMemBlock*) calloc(1,sizeof(TMemBlock));
newblock = (TMemBlock*) DRM(calloc)(1, sizeof(TMemBlock),
DRM_MEM_DRIVER);
newblock->ofs = startofs + size;
newblock->size = p->size - size;
newblock->free = 1;
......@@ -280,15 +261,16 @@ static TMemBlock* SliceBlock(TMemBlock *p,
PMemBlock mmAllocMem( memHeap_t *heap, int size, int align2, int startSearch)
{
int mask,startofs,endofs;
int mask,startofs, endofs;
TMemBlock *p;
if (!heap || align2 < 0 || size <= 0)
if (heap == NULL || align2 < 0 || size <= 0)
return NULL;
mask = (1 << align2)-1;
startofs = 0;
p = (TMemBlock *)heap;
while (p) {
while (p != NULL) {
if (ISFREE(p)) {
startofs = (p->ofs + mask) & ~mask;
if ( startofs < startSearch ) {
......@@ -300,7 +282,7 @@ PMemBlock mmAllocMem( memHeap_t *heap, int size, int align2, int startSearch)
}
p = p->next;
}
if (!p)
if (p == NULL)
return NULL;
p = SliceBlock(p,startofs,size,0,mask+1);
p->heap = heap;
......@@ -313,7 +295,7 @@ static __inline__ int Join2Blocks(TMemBlock *p)
TMemBlock *q = p->next;
p->size += q->size;
p->next = q->next;
free(q);
DRM(free)(q, sizeof(TMemBlock), DRM_MEM_DRIVER);
return 1;
}
return 0;
......@@ -321,29 +303,22 @@ static __inline__ int Join2Blocks(TMemBlock *p)
int mmFreeMem(PMemBlock b)
{
TMemBlock *p,*prev;
TMemBlock *p, *prev;
if (!b)
if (b == NULL)
return 0;
if (!b->heap) {
fprintf(stderr, "no heap\n");
if (b->heap == NULL)
return -1;
}
p = b->heap;
prev = NULL;
while (p && p != b) {
while (p != NULL && p != b) {
prev = p;
p = p->next;
}
if (!p || p->free || p->reserved) {
if (!p)
fprintf(stderr, "block not found in heap\n");
else if (p->free)
fprintf(stderr, "block already free\n");
else
fprintf(stderr, "block is reserved\n");
if (p == NULL || p->free || p->reserved)
return -1;
}
p->free = 1;
Join2Blocks(p);
if (prev)
......@@ -356,9 +331,10 @@ int mmReserveMem(memHeap_t *heap, int offset,int size)
int endofs;
TMemBlock *p;
if (!heap || size <= 0)
if (heap == NULL || size <= 0)
return -1;
endofs = offset+size;
endofs = offset + size;
p = (TMemBlock *)heap;
while (p && p->ofs <= offset) {
if (ISFREE(p) && endofs <= (p->ofs+p->size)) {
......@@ -374,20 +350,22 @@ int mmFreeReserved(memHeap_t *heap, int offset)
{
TMemBlock *p,*prev;
if (!heap)
if (heap == NULL)
return -1;
p = (TMemBlock *)heap;
prev = NULL;
while (p && p->ofs != offset) {
while (p != NULL && p->ofs != offset) {
prev = p;
p = p->next;
}
if (!p || !p->reserved)
if (p == NULL || !p->reserved)
return -1;
p->free = 1;
p->reserved = 0;
Join2Blocks(p);
if (prev)
if (prev != NULL)
Join2Blocks(prev);
return 0;
}
......@@ -396,12 +374,13 @@ void mmDestroy(memHeap_t *heap)
{
TMemBlock *p,*q;
if (!heap)
if (heap == NULL)
return;
p = (TMemBlock *)heap;
while (p) {
while (p != NULL) {
q = p->next;
free(p);
DRM(free)(p, sizeof(TMemBlock), DRM_MEM_DRIVER);
p = q;
}
}
drivers/char/drm/sis_ds.h
View file @ da501825
......@@ -28,14 +28,12 @@
*
*/
#ifndef _sis_ds_h_
#define _sis_ds_h_
#ifndef __SIS_DS_H__
#define __SIS_DS_H__
/* Set Data Structure */
#define SET_SIZE 5000
#define MALLOC(s) kmalloc(s, GFP_KERNEL)
#define FREE(s) kfree(s)
typedef unsigned int ITEM_TYPE;
......@@ -58,8 +56,6 @@ int setFirst(set_t *set, ITEM_TYPE *item);
int setNext(set_t *set, ITEM_TYPE *item);
int setDestroy(set_t *set);
#endif
/*
* GLX Hardware Device Driver common code
* Copyright (C) 1999 Keith Whitwell
......@@ -84,9 +80,6 @@ int setDestroy(set_t *set);
*
*/
#ifndef MM_INC
#define MM_INC
struct mem_block_t {
struct mem_block_t *next;
struct mem_block_t *heap;
......@@ -102,13 +95,19 @@ typedef struct mem_block_t *PMemBlock;
typedef struct mem_block_t memHeap_t;
static __inline__ int mmBlockSize(PMemBlock b)
{ return b->size; }
{
return b->size;
}
static __inline__ int mmOffset(PMemBlock b)
{ return b->ofs; }
{
return b->ofs;
}
static __inline__ void mmMarkReserved(PMemBlock b)
{ b->reserved = 1; }
{
b->reserved = 1;
}
/*
* input: total size in bytes
......@@ -116,13 +115,10 @@ static __inline__ void mmMarkReserved(PMemBlock b)
*/
memHeap_t *mmInit( int ofs, int size );
memHeap_t *mmAddRange( memHeap_t *heap,
int ofs,
int size );
/*
* Allocate 'size' bytes with 2^align2 bytes alignment,
* restrict the search to free memory after 'startSearch'
......@@ -135,6 +131,11 @@ memHeap_t *mmAddRange( memHeap_t *heap,
*/
PMemBlock mmAllocMem( memHeap_t *heap, int size, int align2, int startSearch );
/*
* Returns 1 if the block 'b' is part of the heap 'heap'
*/
int mmBlockInHeap( PMemBlock heap, PMemBlock b );
/*
* Free block starts at offset
* input: pointer to a block
......@@ -160,4 +161,4 @@ void mmDestroy( memHeap_t *mmInit );
/* For debuging purpose. */
void mmDumpMemInfo( memHeap_t *mmInit );
#endif
#endif /* __SIS_DS_H__ */
drivers/char/drm/sis_mm.c
View file @ da501825
......@@ -28,13 +28,14 @@
*
*/
#include <linux/config.h>
#include "sis.h"
#include "video/sisfb.h"
#include "drmP.h"
#include "sis_drm.h"
#include "sis_drv.h"
#include "sis_ds.h"
#if defined(__linux__) && defined(CONFIG_FB_SIS)
#include <linux/sisfb.h>
#endif
#define MAX_CONTEXT 100
#define VIDEO_TYPE 0
......@@ -48,82 +49,88 @@ typedef struct {
static sis_context_t global_ppriv[MAX_CONTEXT];
static int add_alloc_set(int context, int type, unsigned int val)
{
int i, retval = 0;
for(i = 0; i < MAX_CONTEXT; i++)
if(global_ppriv[i].used && global_ppriv[i].context == context){
for (i = 0; i < MAX_CONTEXT; i++) {
if (global_ppriv[i].used && global_ppriv[i].context == context)
{
retval = setAdd(global_ppriv[i].sets[type], val);
break;
}
}
return retval;
}
static int del_alloc_set(int context, int type, unsigned int val)
{
int i, retval = 0;
for(i = 0; i < MAX_CONTEXT; i++)
if(global_ppriv[i].used && global_ppriv[i].context == context){
for (i = 0; i < MAX_CONTEXT; i++) {
if (global_ppriv[i].used && global_ppriv[i].context == context)
{
retval = setDel(global_ppriv[i].sets[type], val);
break;
}
}
return retval;
}
/* fb management via fb device */
#if 1
int sis_fb_alloc(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
#if defined(__linux__) && defined(CONFIG_FB_SIS)
int sis_fb_init( DRM_IOCTL_ARGS )
{
return 0;
}
int sis_fb_alloc( DRM_IOCTL_ARGS )
{
drm_sis_mem_t fb;
struct sis_memreq req;
int retval = 0;
if (copy_from_user(&fb, (drm_sis_mem_t *)arg, sizeof(fb)))
return -EFAULT;
DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t *)data, sizeof(fb));
req.size = fb.size;
sis_malloc(&req);
if(req.offset){
if (req.offset) {
/* TODO */
fb.offset = req.offset;
fb.free = req.offset;
if(!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)){
if (!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)) {
DRM_DEBUG("adding to allocation set fails\n");
sis_free(req.offset);
retval = -1;
}
retval = DRM_ERR(EINVAL);
}
else{
} else {
fb.offset = 0;
fb.size = 0;
fb.free = 0;
}
if (copy_to_user((drm_sis_mem_t *)arg, &fb, sizeof(fb))) return -EFAULT;
DRM_COPY_TO_USER_IOCTL((drm_sis_mem_t *)data, fb, sizeof(fb));
DRM_DEBUG("alloc fb, size = %d, offset = %ld\n", fb.size, req.offset);
return retval;
}
int sis_fb_free(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
int sis_fb_free( DRM_IOCTL_ARGS )
{
drm_sis_mem_t fb;
int retval = 0;
if (copy_from_user(&fb, (drm_sis_mem_t *)arg, sizeof(fb)))
return -EFAULT;
DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t *)data, sizeof(fb));
if(!fb.free){
return -1;
}
if (!fb.free)
return DRM_ERR(EINVAL);
if (!del_alloc_set(fb.context, VIDEO_TYPE, fb.free))
retval = DRM_ERR(EINVAL);
sis_free(fb.free);
if(!del_alloc_set(fb.context, VIDEO_TYPE, fb.free))
retval = -1;
DRM_DEBUG("free fb, offset = %d\n", fb.free);
......@@ -132,126 +139,215 @@ int sis_fb_free(struct inode *inode, struct file *filp, unsigned int cmd,
#else
int sis_fb_alloc(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
/* Called by the X Server to initialize the FB heap. Allocations will fail
* unless this is called. Offset is the beginning of the heap from the
* framebuffer offset (MaxXFBMem in XFree86).
*
* Memory layout according to Thomas Winischofer:
* |------------------|DDDDDDDDDDDDDDDDDDDDDDDDDDDDD|HHHH|CCCCCCCCCCC|
*
* X driver/sisfb HW- Command-
* framebuffer memory DRI heap Cursor queue
*/
int sis_fb_init( DRM_IOCTL_ARGS )
{
return -1;
DRM_DEVICE;
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_fb_t fb;
DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_fb_t *)data, sizeof(fb));
if (dev_priv == NULL) {
dev->dev_private = DRM(calloc)(1, sizeof(drm_sis_private_t),
DRM_MEM_DRIVER);
dev_priv = dev->dev_private;
if (dev_priv == NULL)
return ENOMEM;
}
if (dev_priv->FBHeap != NULL)
return DRM_ERR(EINVAL);
dev_priv->FBHeap = mmInit(fb.offset, fb.size);
DRM_DEBUG("offset = %u, size = %u", fb.offset, fb.size);
return 0;
}
int sis_fb_free(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
int sis_fb_alloc( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_mem_t fb;
PMemBlock block;
int retval = 0;
if (dev_priv == NULL || dev_priv->FBHeap == NULL)
return DRM_ERR(EINVAL);
DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t *)data, sizeof(fb));
block = mmAllocMem(dev_priv->FBHeap, fb.size, 0, 0);
if (block) {
/* TODO */
fb.offset = block->ofs;
fb.free = (unsigned long)block;
if (!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)) {
DRM_DEBUG("adding to allocation set fails\n");
mmFreeMem((PMemBlock)fb.free);
retval = DRM_ERR(EINVAL);
}
} else {
fb.offset = 0;
fb.size = 0;
fb.free = 0;
}
DRM_COPY_TO_USER_IOCTL((drm_sis_mem_t *)data, fb, sizeof(fb));
DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size, fb.offset);
return retval;
}
int sis_fb_free( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_mem_t fb;
if (dev_priv == NULL || dev_priv->FBHeap == NULL)
return DRM_ERR(EINVAL);
DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t *)data, sizeof(fb));
if (!mmBlockInHeap(dev_priv->FBHeap, (PMemBlock)fb.free))
return DRM_ERR(EINVAL);
if (!del_alloc_set(fb.context, VIDEO_TYPE, fb.free))
return DRM_ERR(EINVAL);
mmFreeMem((PMemBlock)fb.free);
DRM_DEBUG("free fb, free = 0x%lx\n", fb.free);
return 0;
}
#endif
/* agp memory management */
#if 1
static memHeap_t *AgpHeap = NULL;
int sisp_agp_init(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
int sis_ioctl_agp_init( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_agp_t agp;
if (copy_from_user(&agp, (drm_sis_agp_t *)arg, sizeof(agp)))
return -EFAULT;
if (dev_priv == NULL) {
dev->dev_private = DRM(calloc)(1, sizeof(drm_sis_private_t),
DRM_MEM_DRIVER);
dev_priv = dev->dev_private;
if (dev_priv == NULL)
return ENOMEM;
}
if (dev_priv->AGPHeap != NULL)
return DRM_ERR(EINVAL);
DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_agp_t *)data, sizeof(agp));
AgpHeap = mmInit(agp.offset, agp.size);
dev_priv->AGPHeap = mmInit(agp.offset, agp.size);
DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size);
return 0;
}
int sisp_agp_alloc(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
int sis_ioctl_agp_alloc( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_mem_t agp;
PMemBlock block;
int retval = 0;
if(!AgpHeap)
return -1;
if (dev_priv == NULL || dev_priv->AGPHeap == NULL)
return DRM_ERR(EINVAL);
if (copy_from_user(&agp, (drm_sis_mem_t *)arg, sizeof(agp)))
return -EFAULT;
DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_mem_t *)data, sizeof(agp));
block = mmAllocMem(AgpHeap, agp.size, 0, 0);
if(block){
block = mmAllocMem(dev_priv->AGPHeap, agp.size, 0, 0);
if (block) {
/* TODO */
agp.offset = block->ofs;
agp.free = (unsigned long)block;
if(!add_alloc_set(agp.context, AGP_TYPE, agp.free)){
if (!add_alloc_set(agp.context, AGP_TYPE, agp.free)) {
DRM_DEBUG("adding to allocation set fails\n");
mmFreeMem((PMemBlock)(unsigned long)agp.free);
mmFreeMem((PMemBlock)agp.free);
retval = -1;
}
}
else{
} else {
agp.offset = 0;
agp.size = 0;
agp.free = 0;
}
if (copy_to_user((drm_sis_mem_t *)arg, &agp, sizeof(agp))) return -EFAULT;
DRM_COPY_TO_USER_IOCTL((drm_sis_mem_t *)data, agp, sizeof(agp));
DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp.size, agp.offset);
return retval;
}
int sisp_agp_free(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
int sis_ioctl_agp_free( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_mem_t agp;
int retval = 0;
if(!AgpHeap)
return -1;
if (dev_priv == NULL || dev_priv->AGPHeap == NULL)
return DRM_ERR(EINVAL);
if (copy_from_user(&agp, (drm_sis_mem_t *)arg, sizeof(agp)))
return -EFAULT;
DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_mem_t *)data, sizeof(agp));
if(!agp.free){
return -1;
}
if (!mmBlockInHeap(dev_priv->AGPHeap, (PMemBlock)agp.free))
return DRM_ERR(EINVAL);
mmFreeMem((PMemBlock)(unsigned long)agp.free);
if(!del_alloc_set(agp.context, AGP_TYPE, agp.free))
retval = -1;
mmFreeMem((PMemBlock)agp.free);
if (!del_alloc_set(agp.context, AGP_TYPE, agp.free))
return DRM_ERR(EINVAL);
DRM_DEBUG("free agp, free = %d\n", agp.free);
DRM_DEBUG("free agp, free = 0x%lx\n", agp.free);
return retval;
return 0;
}
#endif
int sis_init_context(int context)
{
int i;
for(i = 0; i < MAX_CONTEXT ; i++)
if(global_ppriv[i].used && (global_ppriv[i].context == context))
for (i = 0; i < MAX_CONTEXT ; i++) {
if (global_ppriv[i].used &&
(global_ppriv[i].context == context))
break;
}
if(i >= MAX_CONTEXT){
for(i = 0; i < MAX_CONTEXT ; i++){
if(!global_ppriv[i].used){
if (i >= MAX_CONTEXT) {
for (i = 0; i < MAX_CONTEXT ; i++) {
if (!global_ppriv[i].used) {
global_ppriv[i].context = context;
global_ppriv[i].used = 1;
global_ppriv[i].sets[0] = setInit();
global_ppriv[i].sets[1] = setInit();
DRM_DEBUG("init allocation set, socket=%d, context = %d\n",
i, context);
DRM_DEBUG("init allocation set, socket=%d, "
"context = %d\n", i, context);
break;
}
}
if((i >= MAX_CONTEXT) || (global_ppriv[i].sets[0] == NULL) ||
(global_ppriv[i].sets[1] == NULL)){
if ((i >= MAX_CONTEXT) || (global_ppriv[i].sets[0] == NULL) ||
(global_ppriv[i].sets[1] == NULL))
{
return 0;
}
}
......@@ -263,11 +359,13 @@ int sis_final_context(int context)
{
int i;
for(i=0; i<MAX_CONTEXT; i++)
if(global_ppriv[i].used && (global_ppriv[i].context == context))
for (i=0; i<MAX_CONTEXT; i++) {
if (global_ppriv[i].used &&
(global_ppriv[i].context == context))
break;
}
if(i < MAX_CONTEXT){
if (i < MAX_CONTEXT) {
set_t *set;
unsigned int item;
int retval;
......@@ -277,9 +375,13 @@ int sis_final_context(int context)
/* Video Memory */
set = global_ppriv[i].sets[0];
retval = setFirst(set, &item);
while(retval){
while (retval) {
DRM_DEBUG("free video memory 0x%x\n", item);
#if defined(__linux__) && defined(CONFIG_FB_SIS)
sis_free(item);
#else
mmFreeMem((PMemBlock)item);
#endif
retval = setNext(set, &item);
}
setDestroy(set);
......@@ -287,9 +389,9 @@ int sis_final_context(int context)
/* AGP Memory */
set = global_ppriv[i].sets[1];
retval = setFirst(set, &item);
while(retval){
while (retval) {
DRM_DEBUG("free agp memory 0x%x\n", item);
mmFreeMem((PMemBlock)(unsigned long)item);
mmFreeMem((PMemBlock)item);
retval = setNext(set, &item);
}
setDestroy(set);
......@@ -297,11 +399,5 @@ int sis_final_context(int context)
global_ppriv[i].used = 0;
}
/* turn-off auto-flip */
/* TODO */
#if defined(SIS_STEREO)
flip_final();
#endif
return 1;
}
include/asm-alpha/mman.h
View file @ da501825
......@@ -6,6 +6,8 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-arm/mman.h
View file @ da501825
......@@ -6,6 +6,8 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-arm26/mman.h
View file @ da501825
......@@ -6,6 +6,8 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-cris/mman.h
View file @ da501825
......@@ -8,6 +8,8 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-h8300/mman.h
View file @ da501825
......@@ -5,6 +5,8 @@
#define PROT_WRITE 0x2 /* page can be written */
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-i386/mman.h
View file @ da501825
......@@ -6,6 +6,10 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-ia64/mman.h
View file @ da501825
......@@ -11,6 +11,8 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-m68k/mman.h
View file @ da501825
......@@ -6,6 +6,8 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-mips/mman.h
View file @ da501825
......@@ -20,6 +20,8 @@
#define PROT_EXEC 0x04 /* page can be executed */
/* 0x08 reserved for PROT_EXEC_NOFLUSH */
#define PROT_SEM 0x10 /* page may be used for atomic ops */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
/*
* Flags for mmap
......
include/asm-parisc/mman.h
View file @ da501825
......@@ -6,6 +6,8 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-ppc/mman.h
View file @ da501825
......@@ -6,6 +6,8 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-ppc64/mman.h
View file @ da501825
......@@ -13,6 +13,8 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-s390/mman.h
View file @ da501825
......@@ -14,6 +14,8 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-sh/mman.h
View file @ da501825
......@@ -6,6 +6,8 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-sparc/mman.h
View file @ da501825
......@@ -9,6 +9,8 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-sparc64/mman.h
View file @ da501825
......@@ -9,6 +9,8 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-v850/mman.h
View file @ da501825
......@@ -5,6 +5,8 @@
#define PROT_WRITE 0x2 /* page can be written */
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
include/asm-x86_64/mman.h
View file @ da501825
......@@ -6,6 +6,8 @@
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_SEM 0x8
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
......
mm/mprotect.c
View file @ da501825
......@@ -227,6 +227,10 @@ sys_mprotect(unsigned long start, size_t len, unsigned long prot)
unsigned long vm_flags, nstart, end, tmp;
struct vm_area_struct * vma, * next, * prev;
int error = -EINVAL;
const int grows = prot & (PROT_GROWSDOWN|PROT_GROWSUP);
prot &= ~(PROT_GROWSDOWN|PROT_GROWSUP);
if (grows == (PROT_GROWSDOWN|PROT_GROWSUP)) /* can't be both */
return -EINVAL;
if (start & ~PAGE_MASK)
return -EINVAL;
......@@ -245,8 +249,26 @@ sys_mprotect(unsigned long start, size_t len, unsigned long prot)
vma = find_vma_prev(current->mm, start, &prev);
error = -ENOMEM;
if (!vma || vma->vm_start > start)
if (!vma)
goto out;
if (unlikely(grows & PROT_GROWSDOWN)) {
if (vma->vm_start >= end)
goto out;
start = vma->vm_start;
error = -EINVAL;
if (!(vma->vm_flags & VM_GROWSDOWN))
goto out;
}
else {
if (vma->vm_start > start)
goto out;
if (unlikely(grows & PROT_GROWSUP)) {
end = vma->vm_end;
error = -EINVAL;
if (!(vma->vm_flags & VM_GROWSUP))
goto out;
}
}
for (nstart = start ; ; ) {
unsigned int newflags;
......
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