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Commit b4b6051a authored by Linus Torvalds's avatar Linus Torvalds
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DRI CVS merge: SiS driver updates from Eric Anholt. 

Major whitespace cleanups and fix a potential oops.

The driver can now run with or without FB support.
parent c1dd5958
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Showing with 623 additions and 561 deletions
drivers/char/drm/Kconfig
View file @ b4b6051a
......@@ -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/sis.h
View file @ b4b6051a
......@@ -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 @ b4b6051a
#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 @ b4b6051a
......@@ -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 @ b4b6051a
......@@ -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 @ b4b6051a
......@@ -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 @ b4b6051a
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