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Thomas Hellstrom 2004-03-23 21:08:48 +00:00
parent 681da75af9
commit 6cd8831f7a
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185
shared-core/via_drm.h Normal file
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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _VIA_DRM_H_
#define _VIA_DRM_H_
/* WARNING: These defines must be the same as what the Xserver uses.
* if you change them, you must change the defines in the Xserver.
*/
#ifndef _VIA_DEFINES_
#define _VIA_DEFINES_
#define VIA_DMA_BUF_ORDER 12
#define VIA_DMA_BUF_SZ (1 << VIA_DMA_BUF_ORDER)
#define VIA_DMA_BUF_NR 256
#define VIA_NR_SAREA_CLIPRECTS 8
#define VIA_NR_XVMC_LOCKS 2
#define VIA_MAX_CACHELINE_SIZE 64
#define XVMCLOCKPTR(saPriv,lockNo) \
((volatile int *)(((((unsigned long) (saPriv)->XvMCLockArea) + \
(VIA_MAX_CACHELINE_SIZE - 1)) & \
~(VIA_MAX_CACHELINE_SIZE - 1)) + \
VIA_MAX_CACHELINE_SIZE*(lockNo)))
/* Each region is a minimum of 64k, and there are at most 64 of them.
*/
#define VIA_NR_TEX_REGIONS 64
#define VIA_LOG_MIN_TEX_REGION_SIZE 16
#endif
#define VIA_UPLOAD_TEX0IMAGE 0x1 /* handled clientside */
#define VIA_UPLOAD_TEX1IMAGE 0x2 /* handled clientside */
#define VIA_UPLOAD_CTX 0x4
#define VIA_UPLOAD_BUFFERS 0x8
#define VIA_UPLOAD_TEX0 0x10
#define VIA_UPLOAD_TEX1 0x20
#define VIA_UPLOAD_CLIPRECTS 0x40
#define VIA_UPLOAD_ALL 0xff
/* VIA specific ioctls */
#define DRM_IOCTL_VIA_ALLOCMEM DRM_IOWR(0x40, drm_via_mem_t)
#define DRM_IOCTL_VIA_FREEMEM DRM_IOW(0x41, drm_via_mem_t)
#define DRM_IOCTL_VIA_AGP_INIT DRM_IOWR(0x42, drm_via_agp_t)
#define DRM_IOCTL_VIA_FB_INIT DRM_IOWR(0x43, drm_via_fb_t)
#define DRM_IOCTL_VIA_MAP_INIT DRM_IOWR(0x44, drm_via_init_t)
#define DRM_IOCTL_VIA_DEC_FUTEX DRM_IOW(0x45, drm_via_futex_t)
/* Indices into buf.Setup where various bits of state are mirrored per
* context and per buffer. These can be fired at the card as a unit,
* or in a piecewise fashion as required.
*/
#define VIA_TEX_SETUP_SIZE 8
/* Flags for clear ioctl
*/
#define VIA_FRONT 0x1
#define VIA_BACK 0x2
#define VIA_DEPTH 0x4
#define VIA_STENCIL 0x8
#define VIDEO 0
#define AGP 1
typedef struct {
unsigned int offset;
unsigned int size;
} drm_via_agp_t;
typedef struct {
unsigned int offset;
unsigned int size;
} drm_via_fb_t;
typedef struct {
unsigned int context;
unsigned int type;
unsigned int size;
unsigned long index;
unsigned long offset;
} drm_via_mem_t;
typedef struct _drm_via_init {
enum {
VIA_INIT_MAP = 0x01,
VIA_CLEANUP_MAP = 0x02
} func;
unsigned long sarea_priv_offset;
unsigned long fb_offset;
unsigned long mmio_offset;
unsigned long agpAddr;
} drm_via_init_t;
typedef struct _drm_via_futex {
enum {
VIA_FUTEX_WAIT = 0x00,
VIA_FUTEX_WAKE = 0X01
}fut;
unsigned int op;
unsigned int ms;
unsigned int lock;
unsigned int val;
} drm_via_futex_t;
/* Warning: If you change the SAREA structure you must change the Xserver
* structure as well */
typedef struct _drm_via_tex_region {
unsigned char next, prev; /* indices to form a circular LRU */
unsigned char inUse; /* owned by a client, or free? */
int age; /* tracked by clients to update local LRU's */
} drm_via_tex_region_t;
typedef struct _drm_via_sarea {
unsigned int dirty;
unsigned int nbox;
drm_clip_rect_t boxes[VIA_NR_SAREA_CLIPRECTS];
drm_via_tex_region_t texList[VIA_NR_TEX_REGIONS + 1];
int texAge; /* last time texture was uploaded */
int ctxOwner; /* last context to upload state */
int vertexPrim;
/*
* Below is for XvMC.
*/
unsigned int XvMCSubPicOn; /* Subpicture displaying flag */
unsigned int XvMCDisplaying; /* Surface displaying flag */
unsigned int XvMCCtxNoGrabbed; /* Last context to hold decoder */
/*
* We want the lock integers alone on, and aligned to, a cache line.
* Therefore this somewhat strange construct.
*/
char XvMCLockArea[VIA_MAX_CACHELINE_SIZE * (VIA_NR_XVMC_LOCKS + 1)];
} drm_via_sarea_t;
typedef struct _drm_via_flush_agp {
unsigned int offset;
unsigned int size;
unsigned int index;
int discard; /* client is finished with the buffer? */
} drm_via_flush_agp_t;
typedef struct _drm_via_flush_sys {
unsigned int offset;
unsigned int size;
unsigned long index;
int discard; /* client is finished with the buffer? */
} drm_via_flush_sys_t;
#ifdef __KERNEL__
int via_fb_init( DRM_IOCTL_ARGS );
int via_mem_alloc( DRM_IOCTL_ARGS );
int via_mem_free( DRM_IOCTL_ARGS );
int via_agp_init( DRM_IOCTL_ARGS );
int via_map_init( DRM_IOCTL_ARGS );
int via_decoder_futex( DRM_IOCTL_ARGS );
#endif
#endif /* _VIA_DRM_H_ */

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <linux/config.h>
#include "via.h"
#include "drmP.h"
#include "via_drm.h"
#include "via_drv.h"
#define DRIVER_AUTHOR "VIA"
#define DRIVER_NAME "via"
#define DRIVER_DESC "VIA Unichrome"
#define DRIVER_DATE "20040317"
#define DRIVER_MAJOR 1
#define DRIVER_MINOR 2
#define DRIVER_PATCHLEVEL 0
#define DRIVER_IOCTLS \
[DRM_IOCTL_NR(DRM_IOCTL_VIA_ALLOCMEM)] = { via_mem_alloc, 1, 0 }, \
[DRM_IOCTL_NR(DRM_IOCTL_VIA_FREEMEM)] = { via_mem_free, 1, 0 }, \
[DRM_IOCTL_NR(DRM_IOCTL_VIA_AGP_INIT)] = { via_agp_init, 1, 0 }, \
[DRM_IOCTL_NR(DRM_IOCTL_VIA_FB_INIT)] = { via_fb_init, 1, 0 }, \
[DRM_IOCTL_NR(DRM_IOCTL_VIA_MAP_INIT)] = { via_map_init, 1, 0 }, \
[DRM_IOCTL_NR(DRM_IOCTL_VIA_DEC_FUTEX)] = { via_decoder_futex, 1, 0}
#define __HAVE_COUNTERS 0
#include "drm_auth.h"
#include "drm_agpsupport.h"
#include "drm_bufs.h"
#include "drm_context.h"
#include "drm_dma.h"
#include "drm_irq.h"
#include "drm_drawable.h"
#include "drm_drv.h"
#include "drm_fops.h"
#include "drm_init.h"
#include "drm_ioctl.h"
#include "drm_lock.h"
#include "drm_memory.h"
#include "drm_proc.h"
#include "drm_vm.h"
#include "drm_stub.h"

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _VIA_DRV_H_
#define _VIA_DRV_H_
#include "via_drm.h"
typedef struct drm_via_private {
drm_via_sarea_t *sarea_priv;
drm_map_t *sarea;
drm_map_t *fb;
drm_map_t *mmio;
unsigned long agpAddr;
drm_map_t *buffers;
wait_queue_head_t decoder_queue[VIA_NR_XVMC_LOCKS];
} drm_via_private_t;
/* VIA MMIO register access */
#define VIA_BASE ((dev_priv->mmio))
#define VIA_READ(reg) DRM_READ32(VIA_BASE, reg)
#define VIA_WRITE(reg,val) DRM_WRITE32(VIA_BASE, reg, val)
#define VIA_READ8(reg) DRM_READ8(VIA_BASE, reg)
#define VIA_WRITE8(reg,val) DRM_WRITE8(VIA_BASE, reg, val)
extern int via_do_init_map(drm_device_t *dev, drm_via_init_t *init);
extern int via_do_cleanup_map(drm_device_t *dev);
extern int via_map_init(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
#endif

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
* Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#define __NO_VERSION__
#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 "via_ds.h"
extern unsigned int VIA_DEBUG;
set_t *via_setInit(void)
{
int i;
set_t *set;
set = (set_t *)DRM_MALLOC(sizeof(set_t));
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;
set->free = 0;
set->alloc = -1;
set->trace = -1;
return set;
}
int via_setAdd(set_t *set, ITEM_TYPE item)
{
int free = set->free;
if (free != -1) {
set->list[free].val = item;
set->free = set->list[free].free_next;
}
else {
return 0;
}
set->list[free].alloc_next = set->alloc;
set->alloc = free;
set->list[free].free_next = -1;
return 1;
}
int via_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;
else
set->alloc = set->list[alloc].alloc_next;
break;
}
prev = alloc;
alloc = set->list[alloc].alloc_next;
}
if (alloc == -1)
return 0;
set->list[alloc].free_next = set->free;
set->free = alloc;
set->list[alloc].alloc_next = -1;
return 1;
}
/* setFirst -> setAdd -> setNext is wrong */
int via_setFirst(set_t *set, ITEM_TYPE *item)
{
if (set->alloc == -1)
return 0;
*item = set->list[set->alloc].val;
set->trace = set->list[set->alloc].alloc_next;
return 1;
}
int via_setNext(set_t *set, ITEM_TYPE *item)
{
if (set->trace == -1)
return 0;
*item = set->list[set->trace].val;
set->trace = set->list[set->trace].alloc_next;
return 1;
}
int via_setDestroy(set_t *set)
{
DRM_FREE(set, sizeof(set_t));
return 1;
}
#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);
memset(addr, 0, nmemb*size);
return addr;
}
#define free(n) kfree(n)
void via_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 *via_mmInit(int ofs,
int size)
{
PMemBlock blocks;
if (size <= 0)
return 0;
blocks = (TMemBlock *)calloc(1,sizeof(TMemBlock));
if (blocks) {
blocks->ofs = ofs;
blocks->size = size;
blocks->free = 1;
return (memHeap_t *)blocks;
} else
return 0;
}
memHeap_t *via_mmAddRange(memHeap_t *heap,
int ofs,
int size)
{
PMemBlock blocks;
blocks = (TMemBlock *) calloc(2,sizeof(TMemBlock));
if (blocks) {
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.
*/
blocks[1].size = 0;
blocks[1].free = 0;
blocks[1].ofs = ofs+size;
blocks[1].next = (PMemBlock) heap;
return (memHeap_t *)blocks;
}
else
return heap;
}
static TMemBlock* SliceBlock(TMemBlock *p,
int startofs, int size,
int reserved, int alignment)
{
TMemBlock *newblock;
/* break left */
if (startofs > p->ofs) {
newblock = (TMemBlock*)calloc(1,sizeof(TMemBlock));
newblock->ofs = startofs;
newblock->size = p->size - (startofs - p->ofs);
newblock->free = 1;
newblock->next = p->next;
p->size -= newblock->size;
p->next = newblock;
p = newblock;
}
/* break right */
if (size < p->size) {
newblock = (TMemBlock*) calloc(1,sizeof(TMemBlock));
newblock->ofs = startofs + size;
newblock->size = p->size - size;
newblock->free = 1;
newblock->next = p->next;
p->size = size;
p->next = newblock;
}
/* p = middle block */
p->align = alignment;
p->free = 0;
p->reserved = reserved;
return p;
}
PMemBlock via_mmAllocMem(memHeap_t *heap, int size, int align2, int startSearch)
{
int mask,startofs,endofs;
TMemBlock *p;
if (!heap || align2 < 0 || size <= 0)
return NULL;
mask = (1 << align2)-1;
startofs = 0;
p = (TMemBlock *)heap;
while (p) {
if (ISFREE(p)) {
startofs = (p->ofs + mask) & ~mask;
if ( startofs < startSearch )
startofs = startSearch;
endofs = startofs+size;
if (endofs <= (p->ofs+p->size))
break;
}
p = p->next;
}
if (!p)
return NULL;
p = SliceBlock(p,startofs,size,0,mask+1);
p->heap = heap;
return p;
}
static __inline__ int Join2Blocks(TMemBlock *p)
{
if (p->free && p->next && p->next->free) {
TMemBlock *q = p->next;
p->size += q->size;
p->next = q->next;
free(q);
return 1;
}
return 0;
}
int via_mmFreeMem(PMemBlock b)
{
TMemBlock *p,*prev;
if (!b)
return 0;
if (!b->heap) {
fprintf(stderr, "no heap\n");
return -1;
}
p = b->heap;
prev = NULL;
while (p && 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");
return -1;
}
p->free = 1;
Join2Blocks(p);
if (prev)
Join2Blocks(prev);
return 0;
}
int via_mmReserveMem(memHeap_t *heap, int offset,int size)
{
int endofs;
TMemBlock *p;
if (!heap || size <= 0)
return -1;
endofs = offset+size;
p = (TMemBlock *)heap;
while (p && p->ofs <= offset) {
if (ISFREE(p) && endofs <= (p->ofs+p->size)) {
SliceBlock(p,offset,size,1,1);
return 0;
}
p = p->next;
}
return -1;
}
int via_mmFreeReserved(memHeap_t *heap, int offset)
{
TMemBlock *p,*prev;
if (!heap)
return -1;
p = (TMemBlock *)heap;
prev = NULL;
while (p && p->ofs != offset) {
prev = p;
p = p->next;
}
if (!p || !p->reserved)
return -1;
p->free = 1;
p->reserved = 0;
Join2Blocks(p);
if (prev)
Join2Blocks(prev);
return 0;
}
void via_mmDestroy(memHeap_t *heap)
{
TMemBlock *p,*q;
if (!heap)
return;
p = (TMemBlock *)heap;
while (p) {
q = p->next;
free(p);
p = q;
}
}

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
* Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _via_ds_h_
#define _via_ds_h_
#include "via.h"
#include "drmP.h"
/* Set Data Structure */
#define SET_SIZE 5000
typedef unsigned int ITEM_TYPE;
typedef struct {
ITEM_TYPE val;
int alloc_next, free_next;
} list_item_t;
typedef struct {
int alloc;
int free;
int trace;
list_item_t list[SET_SIZE];
} set_t;
set_t *via_setInit(void);
int via_setAdd(set_t *set, ITEM_TYPE item);
int via_setDel(set_t *set, ITEM_TYPE item);
int via_setFirst(set_t *set, ITEM_TYPE *item);
int via_setNext(set_t *set, ITEM_TYPE *item);
int via_setDestroy(set_t *set);
#endif
#ifndef MM_INC
#define MM_INC
struct mem_block_t {
struct mem_block_t *next;
struct mem_block_t *heap;
int ofs,size;
int align;
int free:1;
int reserved:1;
};
typedef struct mem_block_t TMemBlock;
typedef struct mem_block_t *PMemBlock;
/* a heap is just the first block in a chain */
typedef struct mem_block_t memHeap_t;
static __inline__ int mmBlockSize(PMemBlock b)
{ return b->size; }
static __inline__ int mmOffset(PMemBlock b)
{ return b->ofs; }
static __inline__ void mmMarkReserved(PMemBlock b)
{ b->reserved = 1; }
/*
* input: total size in bytes
* return: a heap pointer if OK, NULL if error
*/
memHeap_t *via_mmInit(int ofs, int size);
PMemBlock via_mmAllocMem(memHeap_t *heap, int size, int align2, int startSearch);
/*
* Free block starts at offset
* input: pointer to a block
* return: 0 if OK, -1 if error
*/
int via_mmFreeMem(PMemBlock b);
/*
* destroy MM
*/
void via_mmDestroy(memHeap_t *mmInit);
/* For debugging purpose. */
void via_mmDumpMemInfo(memHeap_t *mmInit);
#endif

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/* via_irq.c
*
* Copyright 2004 BEAM Ltd.
* Copyright 2002 Tungsten Graphics, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BEAM LTD, TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Terry Barnaby <terry1@beam.ltd.uk>
* Keith Whitwell <keith@tungstengraphics.com>
*
*
* This code provides standard DRM access to the Via CLE266's Vertical blank
* interrupt.
*/
#include "via.h"
#include "drmP.h"
#include "drm.h"
#include "via_drm.h"
#include "via_drv.h"
#define VIA_REG_INTERRUPT 0x200
/* VIA_REG_INTERRUPT */
#define VIA_IRQ_GLOBAL (1 << 31)
#define VIA_IRQ_VBI_ENABLE (1 << 19)
#define VIA_IRQ_VBI_PENDING (1 << 3)
irqreturn_t DRM(irq_handler)( DRM_IRQ_ARGS )
{
drm_device_t* dev = (drm_device_t*)arg;
drm_via_private_t* dev_priv = (drm_via_private_t*)dev->dev_private;
u32 status;
int handled = 0;
status = VIA_READ(VIA_REG_INTERRUPT);
DRM_DEBUG("viadrv_irq_handler Status: %x\n",status);
if(status & VIA_IRQ_VBI_PENDING){
atomic_inc(&dev->vbl_received);
DRM_WAKEUP(&dev->vbl_queue);
DRM(vbl_send_signals)(dev);
handled = 1;
}
/* Acknowlege interrupts ?? */
VIA_WRITE(VIA_REG_INTERRUPT, status);
return IRQ_RETVAL(handled);
}
static __inline__ void viadrv_acknowledge_irqs(drm_via_private_t* dev_priv)
{
u32 status;
if(dev_priv){
/* Acknowlege interrupts ?? */
status = VIA_READ(VIA_REG_INTERRUPT);
VIA_WRITE(VIA_REG_INTERRUPT, status | VIA_IRQ_VBI_PENDING);
}
}
int DRM(vblank_wait)(drm_device_t* dev, unsigned int* sequence)
{
drm_via_private_t* dev_priv = (drm_via_private_t*)dev->dev_private;
unsigned int cur_vblank;
int ret = 0;
DRM_DEBUG("viadrv_vblank_wait\n");
if(!dev_priv){
DRM_ERROR("%s called with no initialization\n", __FUNCTION__ );
return -EINVAL;
}
viadrv_acknowledge_irqs(dev_priv);
/* Assume that the user has missed the current sequence number
* by about a day rather than she wants to wait for years
* using vertical blanks...
*/
DRM_WAIT_ON(ret, dev->vbl_queue, 3*DRM_HZ,
(((cur_vblank = atomic_read(&dev->vbl_received)) -
*sequence ) <= (1<<23)));
*sequence = cur_vblank;
return ret;
}
/*
* drm_dma.h hooks
*/
void DRM(driver_irq_preinstall)(drm_device_t* dev){
drm_via_private_t* dev_priv = (drm_via_private_t *)dev->dev_private;
u32 status;
DRM_DEBUG("driver_irq_preinstall: dev_priv: %p\n", dev_priv);
if(dev_priv){
DRM_DEBUG("mmio: %p\n", dev_priv->mmio);
status = VIA_READ(VIA_REG_INTERRUPT);
DRM_DEBUG("intreg: %x\n", status & VIA_IRQ_VBI_ENABLE);
// Clear VSync interrupt regs
VIA_WRITE(VIA_REG_INTERRUPT, status & ~VIA_IRQ_VBI_ENABLE);
/* Clear bits if they're already high */
viadrv_acknowledge_irqs(dev_priv);
}
}
void DRM(driver_irq_postinstall)(drm_device_t* dev){
drm_via_private_t* dev_priv = (drm_via_private_t *)dev->dev_private;
u32 status;
DRM_DEBUG("via_driver_irq_postinstall\n");
if(dev_priv){
status = VIA_READ(VIA_REG_INTERRUPT);
VIA_WRITE(VIA_REG_INTERRUPT, status | VIA_IRQ_GLOBAL
| VIA_IRQ_VBI_ENABLE);
/* Some magic, oh for some data sheets ! */
VIA_WRITE8(0x83d4, 0x11);
VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) | 0x30);
}
}
void DRM(driver_irq_uninstall)(drm_device_t* dev){
drm_via_private_t* dev_priv = (drm_via_private_t *)dev->dev_private;
u32 status;
DRM_DEBUG("driver_irq_uninstall)\n");
if(dev_priv){
/* Some more magic, oh for some data sheets ! */
VIA_WRITE8(0x83d4, 0x11);
VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) & ~0x30);
status = VIA_READ(VIA_REG_INTERRUPT);
VIA_WRITE(VIA_REG_INTERRUPT, status & ~VIA_IRQ_VBI_ENABLE);
}
}

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#define __NO_VERSION__
#include "via.h"
#include "drmP.h"
#include "via_drv.h"
int via_do_init_map(drm_device_t *dev, drm_via_init_t *init)
{
drm_via_private_t *dev_priv;
unsigned int i;
DRM_DEBUG("%s\n", __FUNCTION__);
dev_priv = DRM(alloc)(sizeof(drm_via_private_t), DRM_MEM_DRIVER);
if (dev_priv == NULL)
return -ENOMEM;
memset(dev_priv, 0, sizeof(drm_via_private_t));
DRM_GETSAREA();
if (!dev_priv->sarea) {
DRM_ERROR("could not find sarea!\n");
dev->dev_private = (void *)dev_priv;
via_do_cleanup_map(dev);
return -EINVAL;
}
DRM_FIND_MAP(dev_priv->fb, init->fb_offset);
if (!dev_priv->fb) {
DRM_ERROR("could not find framebuffer!\n");
dev->dev_private = (void *)dev_priv;
via_do_cleanup_map(dev);
return -EINVAL;
}
DRM_FIND_MAP(dev_priv->mmio, init->mmio_offset);
if (!dev_priv->mmio) {
DRM_ERROR("could not find mmio region!\n");
dev->dev_private = (void *)dev_priv;
via_do_cleanup_map(dev);
return -EINVAL;
}
dev_priv->sarea_priv =
(drm_via_sarea_t *)((u8 *)dev_priv->sarea->handle +
init->sarea_priv_offset);
dev_priv->agpAddr = init->agpAddr;
for (i=0; i<VIA_NR_XVMC_LOCKS; ++i)
DRM_INIT_WAITQUEUE( &(dev_priv->decoder_queue[i]) );
dev->dev_private = (void *)dev_priv;
return 0;
}
int via_do_cleanup_map(drm_device_t *dev)
{
if (dev->dev_private) {
drm_via_private_t *dev_priv = dev->dev_private;
DRM(free)(dev_priv, sizeof(drm_via_private_t),
DRM_MEM_DRIVER);
dev->dev_private = NULL;
}
return 0;
}
int via_map_init( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_via_init_t init;
DRM_DEBUG("%s\n", __FUNCTION__);
DRM_COPY_FROM_USER_IOCTL(init, (drm_via_init_t *)data, sizeof(init));
switch (init.func) {
case VIA_INIT_MAP:
return via_do_init_map(dev, &init);
case VIA_CLEANUP_MAP:
return via_do_cleanup_map(dev);
}
return -EINVAL;
}
int via_decoder_futex( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_via_futex_t fx;
volatile int *lock;
drm_via_private_t *dev_priv = (drm_via_private_t*) dev->dev_private;
drm_via_sarea_t *sAPriv = dev_priv->sarea_priv;
int ret = 0;
DRM_COPY_FROM_USER_IOCTL(fx, (drm_via_futex_t *) data, sizeof(fx));
if (fx.lock > VIA_NR_XVMC_LOCKS)
return -EFAULT;
lock = XVMCLOCKPTR(sAPriv,fx.lock);
switch(fx.op) {
case VIA_FUTEX_WAIT:
DRM_WAIT_ON(ret, dev_priv->decoder_queue[fx.lock],
(fx.ms / 10)*(DRM_HZ/100),
*lock != fx.val);
return ret;
case VIA_FUTEX_WAKE:
DRM_WAKEUP( &(dev_priv->decoder_queue[fx.lock]) );
return 0;
}
return 0;
}

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#define __NO_VERSION__
#include "via.h"
#include "drmP.h"
#include "via_drm.h"
#include "via_drv.h"
#include "via_ds.h"
#include "via_mm.h"
#define MAX_CONTEXT 100
unsigned int VIA_DEBUG = 1;
typedef struct {
int used;
int context;
set_t *sets[2]; /* 0 for frame buffer, 1 for AGP , 2 for System*/
} via_context_t;
static via_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) {
retval = via_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) {
retval = via_setDel(global_ppriv[i].sets[type], val);
break;
}
return retval;
}
/* agp memory management */
static memHeap_t *AgpHeap = NULL;
int via_agp_init( DRM_IOCTL_ARGS )
{
drm_via_agp_t agp;
DRM_COPY_FROM_USER_IOCTL(agp, (drm_via_agp_t *)data, sizeof(agp));
AgpHeap = via_mmInit(agp.offset, agp.size);
DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size);
return 0;
}
/* fb memory management */
static memHeap_t *FBHeap = NULL;
int via_fb_init( DRM_IOCTL_ARGS )
{
drm_via_fb_t fb;
DRM_COPY_FROM_USER_IOCTL(fb, (drm_via_fb_t *)data, sizeof(fb));
FBHeap = via_mmInit(fb.offset, fb.size);
DRM_DEBUG("offset = %u, size = %u", fb.offset, fb.size);
return 0;
}
int via_init_context(int context)
{
int i;
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) {
global_ppriv[i].context = context;
global_ppriv[i].used = 1;
global_ppriv[i].sets[0] = via_setInit();
global_ppriv[i].sets[1] = via_setInit();
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)) {
return 0;
}
}
return 1;
}
int via_final_context(int context)
{
int i;
for (i=0; i<MAX_CONTEXT; i++)
if (global_ppriv[i].used &&
(global_ppriv[i].context == context))
break;
if (i < MAX_CONTEXT) {
set_t *set;
unsigned int item;
int retval;
DRM_DEBUG("find socket %d, context = %d\n", i, context);
/* Video Memory */
set = global_ppriv[i].sets[0];
retval = via_setFirst(set, &item);
while (retval) {
DRM_DEBUG("free video memory 0x%x\n", item);
via_mmFreeMem((PMemBlock)item);
retval = via_setNext(set, &item);
}
via_setDestroy(set);
/* AGP Memory */
set = global_ppriv[i].sets[1];
retval = via_setFirst(set, &item);
while (retval) {
DRM_DEBUG("free agp memory 0x%x\n", item);
via_mmFreeMem((PMemBlock)item);
retval = via_setNext(set, &item);
}
via_setDestroy(set);
global_ppriv[i].used = 0;
}
return 1;
}
int via_mem_alloc( DRM_IOCTL_ARGS)
{
drm_via_mem_t mem;
DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t *)data, sizeof(mem));
switch (mem.type) {
case VIDEO :
if (via_fb_alloc(&mem) < 0)
return -EFAULT;
DRM_COPY_TO_USER_IOCTL((drm_via_mem_t *)data, mem,
sizeof(mem));
return 0;
case AGP :
if (via_agp_alloc(&mem) < 0)
return -EFAULT;
DRM_COPY_TO_USER_IOCTL((drm_via_mem_t *)data, mem,
sizeof(mem));
return 0;
}
return -EFAULT;
}
int via_fb_alloc(drm_via_mem_t* mem)
{
drm_via_mm_t fb;
PMemBlock block;
int retval = 0;
if (!FBHeap)
return -1;
fb.size = mem->size;
fb.context = mem->context;
block = via_mmAllocMem(FBHeap, fb.size, 5, 0);
if (block) {
fb.offset = block->ofs;
fb.free = (unsigned int)block;
if (!add_alloc_set(fb.context, VIDEO, fb.free)) {
DRM_DEBUG("adding to allocation set fails\n");
via_mmFreeMem((PMemBlock)fb.free);
retval = -1;
}
}
else {
fb.offset = 0;
fb.size = 0;
fb.free = 0;
retval = -1;
}
mem->offset = fb.offset;
mem->index = fb.free;
DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size,
(int)fb.offset);
return retval;
}
int via_agp_alloc(drm_via_mem_t* mem)
{
drm_via_mm_t agp;
PMemBlock block;
int retval = 0;
if (!AgpHeap)
return -1;
agp.size = mem->size;
agp.context = mem->context;
block = via_mmAllocMem(AgpHeap, agp.size, 5, 0);
if (block) {
agp.offset = block->ofs;
agp.free = (unsigned int)block;
if (!add_alloc_set(agp.context, AGP, agp.free)) {
DRM_DEBUG("adding to allocation set fails\n");
via_mmFreeMem((PMemBlock)agp.free);
retval = -1;
}
}
else {
agp.offset = 0;
agp.size = 0;
agp.free = 0;
}
mem->offset = agp.offset;
mem->index = agp.free;
DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp.size,
(unsigned int)agp.offset);
return retval;
}
int via_mem_free( DRM_IOCTL_ARGS )
{
drm_via_mem_t mem;
DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t *)data, sizeof(mem));
switch (mem.type) {
case VIDEO :
if (via_fb_free(&mem) == 0)
return 0;
break;
case AGP :
if (via_agp_free(&mem) == 0)
return 0;
break;
}
return -EFAULT;
}
int via_fb_free(drm_via_mem_t* mem)
{
drm_via_mm_t fb;
int retval = 0;
if (!FBHeap) {
return -1;
}
fb.free = mem->index;
fb.context = mem->context;
if (!fb.free)
{
return -1;
}
via_mmFreeMem((PMemBlock)fb.free);
if (!del_alloc_set(fb.context, VIDEO, fb.free))
{
retval = -1;
}
DRM_DEBUG("free fb, free = %d\n", fb.free);
return retval;
}
int via_agp_free(drm_via_mem_t* mem)
{
drm_via_mm_t agp;
int retval = 0;
agp.free = mem->index;
agp.context = mem->context;
if (!agp.free)
return -1;
via_mmFreeMem((PMemBlock)agp.free);
if (!del_alloc_set(agp.context, AGP, agp.free)) {
retval = -1;
}
DRM_DEBUG("free agp, free = %d\n", agp.free);
return retval;
}
EXPORT_SYMBOL(via_fb_alloc);
EXPORT_SYMBOL(via_fb_free);

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _via_drm_mm_h_
#define _via_drm_mm_h_
typedef struct {
unsigned int context;
unsigned int size;
unsigned long offset;
unsigned int free;
} drm_via_mm_t;
typedef struct {
unsigned int size;
unsigned long handle;
void *virtual;
} drm_via_dma_t;
int via_fb_alloc(drm_via_mem_t *mem);
int via_fb_free(drm_via_mem_t *mem);
int via_agp_alloc(drm_via_mem_t *mem);
int via_agp_free(drm_via_mem_t *mem);
#endif

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __VIA_H__
#define __VIA_H__
#define DRM(x) viadrv_##x
#define __HAVE_AGP 1
#define __MUST_HAVE_AGP 0
#define __HAVE_MTRR 1
#define __HAVE_CTX_BITMAP 1
/* BEAM: Have enabled DMA,DMA_IRQ and VBL_IRQ needed to do this to get standard
* support for VBL_IRQ.
*/
#define __HAVE_IRQ 1
#define __HAVE_SHARED_IRQ 1
#define __HAVE_VBL_IRQ 1
#define DRIVER_AGP_BUFFERS_MAP( dev ) \
((drm_via_private_t *)((dev)->dev_private))->buffers
extern int via_init_context(int context);
extern int via_final_context(int context);
#define DRIVER_CTX_CTOR via_init_context
#define DRIVER_CTX_DTOR via_final_context
#define DRIVER_PCI_IDS \
{0x1106, 0x3122, 0, "Via CLE3122"}, \
{0x1106, 0x3022, 0, "Via CLE3022"}, \
{0x1106, 0x3205, 0, "Via VT3205"}, \
{0x1106, 0x7205, 0, "Via VT7205"}, \
{0x1106, 0x3204, 0, "Via VT3204"}, \
{0x1106, 0x7204, 0, "Via VT7204"}, \
{0, 0, 0, NULL}
#endif

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _VIA_DRM_H_
#define _VIA_DRM_H_
/* WARNING: These defines must be the same as what the Xserver uses.
* if you change them, you must change the defines in the Xserver.
*/
#ifndef _VIA_DEFINES_
#define _VIA_DEFINES_
#define VIA_DMA_BUF_ORDER 12
#define VIA_DMA_BUF_SZ (1 << VIA_DMA_BUF_ORDER)
#define VIA_DMA_BUF_NR 256
#define VIA_NR_SAREA_CLIPRECTS 8
#define VIA_NR_XVMC_LOCKS 2
#define VIA_MAX_CACHELINE_SIZE 64
#define XVMCLOCKPTR(saPriv,lockNo) \
((volatile int *)(((((unsigned long) (saPriv)->XvMCLockArea) + \
(VIA_MAX_CACHELINE_SIZE - 1)) & \
~(VIA_MAX_CACHELINE_SIZE - 1)) + \
VIA_MAX_CACHELINE_SIZE*(lockNo)))
/* Each region is a minimum of 64k, and there are at most 64 of them.
*/
#define VIA_NR_TEX_REGIONS 64
#define VIA_LOG_MIN_TEX_REGION_SIZE 16
#endif
#define VIA_UPLOAD_TEX0IMAGE 0x1 /* handled clientside */
#define VIA_UPLOAD_TEX1IMAGE 0x2 /* handled clientside */
#define VIA_UPLOAD_CTX 0x4
#define VIA_UPLOAD_BUFFERS 0x8
#define VIA_UPLOAD_TEX0 0x10
#define VIA_UPLOAD_TEX1 0x20
#define VIA_UPLOAD_CLIPRECTS 0x40
#define VIA_UPLOAD_ALL 0xff
/* VIA specific ioctls */
#define DRM_IOCTL_VIA_ALLOCMEM DRM_IOWR(0x40, drm_via_mem_t)
#define DRM_IOCTL_VIA_FREEMEM DRM_IOW(0x41, drm_via_mem_t)
#define DRM_IOCTL_VIA_AGP_INIT DRM_IOWR(0x42, drm_via_agp_t)
#define DRM_IOCTL_VIA_FB_INIT DRM_IOWR(0x43, drm_via_fb_t)
#define DRM_IOCTL_VIA_MAP_INIT DRM_IOWR(0x44, drm_via_init_t)
#define DRM_IOCTL_VIA_DEC_FUTEX DRM_IOW(0x45, drm_via_futex_t)
/* Indices into buf.Setup where various bits of state are mirrored per
* context and per buffer. These can be fired at the card as a unit,
* or in a piecewise fashion as required.
*/
#define VIA_TEX_SETUP_SIZE 8
/* Flags for clear ioctl
*/
#define VIA_FRONT 0x1
#define VIA_BACK 0x2
#define VIA_DEPTH 0x4
#define VIA_STENCIL 0x8
#define VIDEO 0
#define AGP 1
typedef struct {
unsigned int offset;
unsigned int size;
} drm_via_agp_t;
typedef struct {
unsigned int offset;
unsigned int size;
} drm_via_fb_t;
typedef struct {
unsigned int context;
unsigned int type;
unsigned int size;
unsigned long index;
unsigned long offset;
} drm_via_mem_t;
typedef struct _drm_via_init {
enum {
VIA_INIT_MAP = 0x01,
VIA_CLEANUP_MAP = 0x02
} func;
unsigned long sarea_priv_offset;
unsigned long fb_offset;
unsigned long mmio_offset;
unsigned long agpAddr;
} drm_via_init_t;
typedef struct _drm_via_futex {
enum {
VIA_FUTEX_WAIT = 0x00,
VIA_FUTEX_WAKE = 0X01
}fut;
unsigned int op;
unsigned int ms;
unsigned int lock;
unsigned int val;
} drm_via_futex_t;
/* Warning: If you change the SAREA structure you must change the Xserver
* structure as well */
typedef struct _drm_via_tex_region {
unsigned char next, prev; /* indices to form a circular LRU */
unsigned char inUse; /* owned by a client, or free? */
int age; /* tracked by clients to update local LRU's */
} drm_via_tex_region_t;
typedef struct _drm_via_sarea {
unsigned int dirty;
unsigned int nbox;
drm_clip_rect_t boxes[VIA_NR_SAREA_CLIPRECTS];
drm_via_tex_region_t texList[VIA_NR_TEX_REGIONS + 1];
int texAge; /* last time texture was uploaded */
int ctxOwner; /* last context to upload state */
int vertexPrim;
/*
* Below is for XvMC.
*/
unsigned int XvMCSubPicOn; /* Subpicture displaying flag */
unsigned int XvMCDisplaying; /* Surface displaying flag */
unsigned int XvMCCtxNoGrabbed; /* Last context to hold decoder */
/*
* We want the lock integers alone on, and aligned to, a cache line.
* Therefore this somewhat strange construct.
*/
char XvMCLockArea[VIA_MAX_CACHELINE_SIZE * (VIA_NR_XVMC_LOCKS + 1)];
} drm_via_sarea_t;
typedef struct _drm_via_flush_agp {
unsigned int offset;
unsigned int size;
unsigned int index;
int discard; /* client is finished with the buffer? */
} drm_via_flush_agp_t;
typedef struct _drm_via_flush_sys {
unsigned int offset;
unsigned int size;
unsigned long index;
int discard; /* client is finished with the buffer? */
} drm_via_flush_sys_t;
#ifdef __KERNEL__
int via_fb_init( DRM_IOCTL_ARGS );
int via_mem_alloc( DRM_IOCTL_ARGS );
int via_mem_free( DRM_IOCTL_ARGS );
int via_agp_init( DRM_IOCTL_ARGS );
int via_map_init( DRM_IOCTL_ARGS );
int via_decoder_futex( DRM_IOCTL_ARGS );
#endif
#endif /* _VIA_DRM_H_ */

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <linux/config.h>
#include "via.h"
#include "drmP.h"
#include "via_drm.h"
#include "via_drv.h"
#define DRIVER_AUTHOR "VIA"
#define DRIVER_NAME "via"
#define DRIVER_DESC "VIA Unichrome"
#define DRIVER_DATE "20040317"
#define DRIVER_MAJOR 1
#define DRIVER_MINOR 2
#define DRIVER_PATCHLEVEL 0
#define DRIVER_IOCTLS \
[DRM_IOCTL_NR(DRM_IOCTL_VIA_ALLOCMEM)] = { via_mem_alloc, 1, 0 }, \
[DRM_IOCTL_NR(DRM_IOCTL_VIA_FREEMEM)] = { via_mem_free, 1, 0 }, \
[DRM_IOCTL_NR(DRM_IOCTL_VIA_AGP_INIT)] = { via_agp_init, 1, 0 }, \
[DRM_IOCTL_NR(DRM_IOCTL_VIA_FB_INIT)] = { via_fb_init, 1, 0 }, \
[DRM_IOCTL_NR(DRM_IOCTL_VIA_MAP_INIT)] = { via_map_init, 1, 0 }, \
[DRM_IOCTL_NR(DRM_IOCTL_VIA_DEC_FUTEX)] = { via_decoder_futex, 1, 0}
#define __HAVE_COUNTERS 0
#include "drm_auth.h"
#include "drm_agpsupport.h"
#include "drm_bufs.h"
#include "drm_context.h"
#include "drm_dma.h"
#include "drm_irq.h"
#include "drm_drawable.h"
#include "drm_drv.h"
#include "drm_fops.h"
#include "drm_init.h"
#include "drm_ioctl.h"
#include "drm_lock.h"
#include "drm_memory.h"
#include "drm_proc.h"
#include "drm_vm.h"
#include "drm_stub.h"

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _VIA_DRV_H_
#define _VIA_DRV_H_
#include "via_drm.h"
typedef struct drm_via_private {
drm_via_sarea_t *sarea_priv;
drm_map_t *sarea;
drm_map_t *fb;
drm_map_t *mmio;
unsigned long agpAddr;
drm_map_t *buffers;
wait_queue_head_t decoder_queue[VIA_NR_XVMC_LOCKS];
} drm_via_private_t;
/* VIA MMIO register access */
#define VIA_BASE ((dev_priv->mmio))
#define VIA_READ(reg) DRM_READ32(VIA_BASE, reg)
#define VIA_WRITE(reg,val) DRM_WRITE32(VIA_BASE, reg, val)
#define VIA_READ8(reg) DRM_READ8(VIA_BASE, reg)
#define VIA_WRITE8(reg,val) DRM_WRITE8(VIA_BASE, reg, val)
extern int via_do_init_map(drm_device_t *dev, drm_via_init_t *init);
extern int via_do_cleanup_map(drm_device_t *dev);
extern int via_map_init(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
#endif

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
* Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#define __NO_VERSION__
#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 "via_ds.h"
extern unsigned int VIA_DEBUG;
set_t *via_setInit(void)
{
int i;
set_t *set;
set = (set_t *)DRM_MALLOC(sizeof(set_t));
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;
set->free = 0;
set->alloc = -1;
set->trace = -1;
return set;
}
int via_setAdd(set_t *set, ITEM_TYPE item)
{
int free = set->free;
if (free != -1) {
set->list[free].val = item;
set->free = set->list[free].free_next;
}
else {
return 0;
}
set->list[free].alloc_next = set->alloc;
set->alloc = free;
set->list[free].free_next = -1;
return 1;
}
int via_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;
else
set->alloc = set->list[alloc].alloc_next;
break;
}
prev = alloc;
alloc = set->list[alloc].alloc_next;
}
if (alloc == -1)
return 0;
set->list[alloc].free_next = set->free;
set->free = alloc;
set->list[alloc].alloc_next = -1;
return 1;
}
/* setFirst -> setAdd -> setNext is wrong */
int via_setFirst(set_t *set, ITEM_TYPE *item)
{
if (set->alloc == -1)
return 0;
*item = set->list[set->alloc].val;
set->trace = set->list[set->alloc].alloc_next;
return 1;
}
int via_setNext(set_t *set, ITEM_TYPE *item)
{
if (set->trace == -1)
return 0;
*item = set->list[set->trace].val;
set->trace = set->list[set->trace].alloc_next;
return 1;
}
int via_setDestroy(set_t *set)
{
DRM_FREE(set, sizeof(set_t));
return 1;
}
#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);
memset(addr, 0, nmemb*size);
return addr;
}
#define free(n) kfree(n)
void via_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 *via_mmInit(int ofs,
int size)
{
PMemBlock blocks;
if (size <= 0)
return 0;
blocks = (TMemBlock *)calloc(1,sizeof(TMemBlock));
if (blocks) {
blocks->ofs = ofs;
blocks->size = size;
blocks->free = 1;
return (memHeap_t *)blocks;
} else
return 0;
}
memHeap_t *via_mmAddRange(memHeap_t *heap,
int ofs,
int size)
{
PMemBlock blocks;
blocks = (TMemBlock *) calloc(2,sizeof(TMemBlock));
if (blocks) {
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.
*/
blocks[1].size = 0;
blocks[1].free = 0;
blocks[1].ofs = ofs+size;
blocks[1].next = (PMemBlock) heap;
return (memHeap_t *)blocks;
}
else
return heap;
}
static TMemBlock* SliceBlock(TMemBlock *p,
int startofs, int size,
int reserved, int alignment)
{
TMemBlock *newblock;
/* break left */
if (startofs > p->ofs) {
newblock = (TMemBlock*)calloc(1,sizeof(TMemBlock));
newblock->ofs = startofs;
newblock->size = p->size - (startofs - p->ofs);
newblock->free = 1;
newblock->next = p->next;
p->size -= newblock->size;
p->next = newblock;
p = newblock;
}
/* break right */
if (size < p->size) {
newblock = (TMemBlock*) calloc(1,sizeof(TMemBlock));
newblock->ofs = startofs + size;
newblock->size = p->size - size;
newblock->free = 1;
newblock->next = p->next;
p->size = size;
p->next = newblock;
}
/* p = middle block */
p->align = alignment;
p->free = 0;
p->reserved = reserved;
return p;
}
PMemBlock via_mmAllocMem(memHeap_t *heap, int size, int align2, int startSearch)
{
int mask,startofs,endofs;
TMemBlock *p;
if (!heap || align2 < 0 || size <= 0)
return NULL;
mask = (1 << align2)-1;
startofs = 0;
p = (TMemBlock *)heap;
while (p) {
if (ISFREE(p)) {
startofs = (p->ofs + mask) & ~mask;
if ( startofs < startSearch )
startofs = startSearch;
endofs = startofs+size;
if (endofs <= (p->ofs+p->size))
break;
}
p = p->next;
}
if (!p)
return NULL;
p = SliceBlock(p,startofs,size,0,mask+1);
p->heap = heap;
return p;
}
static __inline__ int Join2Blocks(TMemBlock *p)
{
if (p->free && p->next && p->next->free) {
TMemBlock *q = p->next;
p->size += q->size;
p->next = q->next;
free(q);
return 1;
}
return 0;
}
int via_mmFreeMem(PMemBlock b)
{
TMemBlock *p,*prev;
if (!b)
return 0;
if (!b->heap) {
fprintf(stderr, "no heap\n");
return -1;
}
p = b->heap;
prev = NULL;
while (p && 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");
return -1;
}
p->free = 1;
Join2Blocks(p);
if (prev)
Join2Blocks(prev);
return 0;
}
int via_mmReserveMem(memHeap_t *heap, int offset,int size)
{
int endofs;
TMemBlock *p;
if (!heap || size <= 0)
return -1;
endofs = offset+size;
p = (TMemBlock *)heap;
while (p && p->ofs <= offset) {
if (ISFREE(p) && endofs <= (p->ofs+p->size)) {
SliceBlock(p,offset,size,1,1);
return 0;
}
p = p->next;
}
return -1;
}
int via_mmFreeReserved(memHeap_t *heap, int offset)
{
TMemBlock *p,*prev;
if (!heap)
return -1;
p = (TMemBlock *)heap;
prev = NULL;
while (p && p->ofs != offset) {
prev = p;
p = p->next;
}
if (!p || !p->reserved)
return -1;
p->free = 1;
p->reserved = 0;
Join2Blocks(p);
if (prev)
Join2Blocks(prev);
return 0;
}
void via_mmDestroy(memHeap_t *heap)
{
TMemBlock *p,*q;
if (!heap)
return;
p = (TMemBlock *)heap;
while (p) {
q = p->next;
free(p);
p = q;
}
}

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
* Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _via_ds_h_
#define _via_ds_h_
#include "via.h"
#include "drmP.h"
/* Set Data Structure */
#define SET_SIZE 5000
typedef unsigned int ITEM_TYPE;
typedef struct {
ITEM_TYPE val;
int alloc_next, free_next;
} list_item_t;
typedef struct {
int alloc;
int free;
int trace;
list_item_t list[SET_SIZE];
} set_t;
set_t *via_setInit(void);
int via_setAdd(set_t *set, ITEM_TYPE item);
int via_setDel(set_t *set, ITEM_TYPE item);
int via_setFirst(set_t *set, ITEM_TYPE *item);
int via_setNext(set_t *set, ITEM_TYPE *item);
int via_setDestroy(set_t *set);
#endif
#ifndef MM_INC
#define MM_INC
struct mem_block_t {
struct mem_block_t *next;
struct mem_block_t *heap;
int ofs,size;
int align;
int free:1;
int reserved:1;
};
typedef struct mem_block_t TMemBlock;
typedef struct mem_block_t *PMemBlock;
/* a heap is just the first block in a chain */
typedef struct mem_block_t memHeap_t;
static __inline__ int mmBlockSize(PMemBlock b)
{ return b->size; }
static __inline__ int mmOffset(PMemBlock b)
{ return b->ofs; }
static __inline__ void mmMarkReserved(PMemBlock b)
{ b->reserved = 1; }
/*
* input: total size in bytes
* return: a heap pointer if OK, NULL if error
*/
memHeap_t *via_mmInit(int ofs, int size);
PMemBlock via_mmAllocMem(memHeap_t *heap, int size, int align2, int startSearch);
/*
* Free block starts at offset
* input: pointer to a block
* return: 0 if OK, -1 if error
*/
int via_mmFreeMem(PMemBlock b);
/*
* destroy MM
*/
void via_mmDestroy(memHeap_t *mmInit);
/* For debugging purpose. */
void via_mmDumpMemInfo(memHeap_t *mmInit);
#endif

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/* via_irq.c
*
* Copyright 2004 BEAM Ltd.
* Copyright 2002 Tungsten Graphics, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BEAM LTD, TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Terry Barnaby <terry1@beam.ltd.uk>
* Keith Whitwell <keith@tungstengraphics.com>
*
*
* This code provides standard DRM access to the Via CLE266's Vertical blank
* interrupt.
*/
#include "via.h"
#include "drmP.h"
#include "drm.h"
#include "via_drm.h"
#include "via_drv.h"
#define VIA_REG_INTERRUPT 0x200
/* VIA_REG_INTERRUPT */
#define VIA_IRQ_GLOBAL (1 << 31)
#define VIA_IRQ_VBI_ENABLE (1 << 19)
#define VIA_IRQ_VBI_PENDING (1 << 3)
irqreturn_t DRM(irq_handler)( DRM_IRQ_ARGS )
{
drm_device_t* dev = (drm_device_t*)arg;
drm_via_private_t* dev_priv = (drm_via_private_t*)dev->dev_private;
u32 status;
int handled = 0;
status = VIA_READ(VIA_REG_INTERRUPT);
DRM_DEBUG("viadrv_irq_handler Status: %x\n",status);
if(status & VIA_IRQ_VBI_PENDING){
atomic_inc(&dev->vbl_received);
DRM_WAKEUP(&dev->vbl_queue);
DRM(vbl_send_signals)(dev);
handled = 1;
}
/* Acknowlege interrupts ?? */
VIA_WRITE(VIA_REG_INTERRUPT, status);
return IRQ_RETVAL(handled);
}
static __inline__ void viadrv_acknowledge_irqs(drm_via_private_t* dev_priv)
{
u32 status;
if(dev_priv){
/* Acknowlege interrupts ?? */
status = VIA_READ(VIA_REG_INTERRUPT);
VIA_WRITE(VIA_REG_INTERRUPT, status | VIA_IRQ_VBI_PENDING);
}
}
int DRM(vblank_wait)(drm_device_t* dev, unsigned int* sequence)
{
drm_via_private_t* dev_priv = (drm_via_private_t*)dev->dev_private;
unsigned int cur_vblank;
int ret = 0;
DRM_DEBUG("viadrv_vblank_wait\n");
if(!dev_priv){
DRM_ERROR("%s called with no initialization\n", __FUNCTION__ );
return -EINVAL;
}
viadrv_acknowledge_irqs(dev_priv);
/* Assume that the user has missed the current sequence number
* by about a day rather than she wants to wait for years
* using vertical blanks...
*/
DRM_WAIT_ON(ret, dev->vbl_queue, 3*DRM_HZ,
(((cur_vblank = atomic_read(&dev->vbl_received)) -
*sequence ) <= (1<<23)));
*sequence = cur_vblank;
return ret;
}
/*
* drm_dma.h hooks
*/
void DRM(driver_irq_preinstall)(drm_device_t* dev){
drm_via_private_t* dev_priv = (drm_via_private_t *)dev->dev_private;
u32 status;
DRM_DEBUG("driver_irq_preinstall: dev_priv: %p\n", dev_priv);
if(dev_priv){
DRM_DEBUG("mmio: %p\n", dev_priv->mmio);
status = VIA_READ(VIA_REG_INTERRUPT);
DRM_DEBUG("intreg: %x\n", status & VIA_IRQ_VBI_ENABLE);
// Clear VSync interrupt regs
VIA_WRITE(VIA_REG_INTERRUPT, status & ~VIA_IRQ_VBI_ENABLE);
/* Clear bits if they're already high */
viadrv_acknowledge_irqs(dev_priv);
}
}
void DRM(driver_irq_postinstall)(drm_device_t* dev){
drm_via_private_t* dev_priv = (drm_via_private_t *)dev->dev_private;
u32 status;
DRM_DEBUG("via_driver_irq_postinstall\n");
if(dev_priv){
status = VIA_READ(VIA_REG_INTERRUPT);
VIA_WRITE(VIA_REG_INTERRUPT, status | VIA_IRQ_GLOBAL
| VIA_IRQ_VBI_ENABLE);
/* Some magic, oh for some data sheets ! */
VIA_WRITE8(0x83d4, 0x11);
VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) | 0x30);
}
}
void DRM(driver_irq_uninstall)(drm_device_t* dev){
drm_via_private_t* dev_priv = (drm_via_private_t *)dev->dev_private;
u32 status;
DRM_DEBUG("driver_irq_uninstall)\n");
if(dev_priv){
/* Some more magic, oh for some data sheets ! */
VIA_WRITE8(0x83d4, 0x11);
VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) & ~0x30);
status = VIA_READ(VIA_REG_INTERRUPT);
VIA_WRITE(VIA_REG_INTERRUPT, status & ~VIA_IRQ_VBI_ENABLE);
}
}

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#define __NO_VERSION__
#include "via.h"
#include "drmP.h"
#include "via_drv.h"
int via_do_init_map(drm_device_t *dev, drm_via_init_t *init)
{
drm_via_private_t *dev_priv;
unsigned int i;
DRM_DEBUG("%s\n", __FUNCTION__);
dev_priv = DRM(alloc)(sizeof(drm_via_private_t), DRM_MEM_DRIVER);
if (dev_priv == NULL)
return -ENOMEM;
memset(dev_priv, 0, sizeof(drm_via_private_t));
DRM_GETSAREA();
if (!dev_priv->sarea) {
DRM_ERROR("could not find sarea!\n");
dev->dev_private = (void *)dev_priv;
via_do_cleanup_map(dev);
return -EINVAL;
}
DRM_FIND_MAP(dev_priv->fb, init->fb_offset);
if (!dev_priv->fb) {
DRM_ERROR("could not find framebuffer!\n");
dev->dev_private = (void *)dev_priv;
via_do_cleanup_map(dev);
return -EINVAL;
}
DRM_FIND_MAP(dev_priv->mmio, init->mmio_offset);
if (!dev_priv->mmio) {
DRM_ERROR("could not find mmio region!\n");
dev->dev_private = (void *)dev_priv;
via_do_cleanup_map(dev);
return -EINVAL;
}
dev_priv->sarea_priv =
(drm_via_sarea_t *)((u8 *)dev_priv->sarea->handle +
init->sarea_priv_offset);
dev_priv->agpAddr = init->agpAddr;
for (i=0; i<VIA_NR_XVMC_LOCKS; ++i)
DRM_INIT_WAITQUEUE( &(dev_priv->decoder_queue[i]) );
dev->dev_private = (void *)dev_priv;
return 0;
}
int via_do_cleanup_map(drm_device_t *dev)
{
if (dev->dev_private) {
drm_via_private_t *dev_priv = dev->dev_private;
DRM(free)(dev_priv, sizeof(drm_via_private_t),
DRM_MEM_DRIVER);
dev->dev_private = NULL;
}
return 0;
}
int via_map_init( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_via_init_t init;
DRM_DEBUG("%s\n", __FUNCTION__);
DRM_COPY_FROM_USER_IOCTL(init, (drm_via_init_t *)data, sizeof(init));
switch (init.func) {
case VIA_INIT_MAP:
return via_do_init_map(dev, &init);
case VIA_CLEANUP_MAP:
return via_do_cleanup_map(dev);
}
return -EINVAL;
}
int via_decoder_futex( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_via_futex_t fx;
volatile int *lock;
drm_via_private_t *dev_priv = (drm_via_private_t*) dev->dev_private;
drm_via_sarea_t *sAPriv = dev_priv->sarea_priv;
int ret = 0;
DRM_COPY_FROM_USER_IOCTL(fx, (drm_via_futex_t *) data, sizeof(fx));
if (fx.lock > VIA_NR_XVMC_LOCKS)
return -EFAULT;
lock = XVMCLOCKPTR(sAPriv,fx.lock);
switch(fx.op) {
case VIA_FUTEX_WAIT:
DRM_WAIT_ON(ret, dev_priv->decoder_queue[fx.lock],
(fx.ms / 10)*(DRM_HZ/100),
*lock != fx.val);
return ret;
case VIA_FUTEX_WAKE:
DRM_WAKEUP( &(dev_priv->decoder_queue[fx.lock]) );
return 0;
}
return 0;
}

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#define __NO_VERSION__
#include "via.h"
#include "drmP.h"
#include "via_drm.h"
#include "via_drv.h"
#include "via_ds.h"
#include "via_mm.h"
#define MAX_CONTEXT 100
unsigned int VIA_DEBUG = 1;
typedef struct {
int used;
int context;
set_t *sets[2]; /* 0 for frame buffer, 1 for AGP , 2 for System*/
} via_context_t;
static via_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) {
retval = via_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) {
retval = via_setDel(global_ppriv[i].sets[type], val);
break;
}
return retval;
}
/* agp memory management */
static memHeap_t *AgpHeap = NULL;
int via_agp_init( DRM_IOCTL_ARGS )
{
drm_via_agp_t agp;
DRM_COPY_FROM_USER_IOCTL(agp, (drm_via_agp_t *)data, sizeof(agp));
AgpHeap = via_mmInit(agp.offset, agp.size);
DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size);
return 0;
}
/* fb memory management */
static memHeap_t *FBHeap = NULL;
int via_fb_init( DRM_IOCTL_ARGS )
{
drm_via_fb_t fb;
DRM_COPY_FROM_USER_IOCTL(fb, (drm_via_fb_t *)data, sizeof(fb));
FBHeap = via_mmInit(fb.offset, fb.size);
DRM_DEBUG("offset = %u, size = %u", fb.offset, fb.size);
return 0;
}
int via_init_context(int context)
{
int i;
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) {
global_ppriv[i].context = context;
global_ppriv[i].used = 1;
global_ppriv[i].sets[0] = via_setInit();
global_ppriv[i].sets[1] = via_setInit();
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)) {
return 0;
}
}
return 1;
}
int via_final_context(int context)
{
int i;
for (i=0; i<MAX_CONTEXT; i++)
if (global_ppriv[i].used &&
(global_ppriv[i].context == context))
break;
if (i < MAX_CONTEXT) {
set_t *set;
unsigned int item;
int retval;
DRM_DEBUG("find socket %d, context = %d\n", i, context);
/* Video Memory */
set = global_ppriv[i].sets[0];
retval = via_setFirst(set, &item);
while (retval) {
DRM_DEBUG("free video memory 0x%x\n", item);
via_mmFreeMem((PMemBlock)item);
retval = via_setNext(set, &item);
}
via_setDestroy(set);
/* AGP Memory */
set = global_ppriv[i].sets[1];
retval = via_setFirst(set, &item);
while (retval) {
DRM_DEBUG("free agp memory 0x%x\n", item);
via_mmFreeMem((PMemBlock)item);
retval = via_setNext(set, &item);
}
via_setDestroy(set);
global_ppriv[i].used = 0;
}
return 1;
}
int via_mem_alloc( DRM_IOCTL_ARGS)
{
drm_via_mem_t mem;
DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t *)data, sizeof(mem));
switch (mem.type) {
case VIDEO :
if (via_fb_alloc(&mem) < 0)
return -EFAULT;
DRM_COPY_TO_USER_IOCTL((drm_via_mem_t *)data, mem,
sizeof(mem));
return 0;
case AGP :
if (via_agp_alloc(&mem) < 0)
return -EFAULT;
DRM_COPY_TO_USER_IOCTL((drm_via_mem_t *)data, mem,
sizeof(mem));
return 0;
}
return -EFAULT;
}
int via_fb_alloc(drm_via_mem_t* mem)
{
drm_via_mm_t fb;
PMemBlock block;
int retval = 0;
if (!FBHeap)
return -1;
fb.size = mem->size;
fb.context = mem->context;
block = via_mmAllocMem(FBHeap, fb.size, 5, 0);
if (block) {
fb.offset = block->ofs;
fb.free = (unsigned int)block;
if (!add_alloc_set(fb.context, VIDEO, fb.free)) {
DRM_DEBUG("adding to allocation set fails\n");
via_mmFreeMem((PMemBlock)fb.free);
retval = -1;
}
}
else {
fb.offset = 0;
fb.size = 0;
fb.free = 0;
retval = -1;
}
mem->offset = fb.offset;
mem->index = fb.free;
DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size,
(int)fb.offset);
return retval;
}
int via_agp_alloc(drm_via_mem_t* mem)
{
drm_via_mm_t agp;
PMemBlock block;
int retval = 0;
if (!AgpHeap)
return -1;
agp.size = mem->size;
agp.context = mem->context;
block = via_mmAllocMem(AgpHeap, agp.size, 5, 0);
if (block) {
agp.offset = block->ofs;
agp.free = (unsigned int)block;
if (!add_alloc_set(agp.context, AGP, agp.free)) {
DRM_DEBUG("adding to allocation set fails\n");
via_mmFreeMem((PMemBlock)agp.free);
retval = -1;
}
}
else {
agp.offset = 0;
agp.size = 0;
agp.free = 0;
}
mem->offset = agp.offset;
mem->index = agp.free;
DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp.size,
(unsigned int)agp.offset);
return retval;
}
int via_mem_free( DRM_IOCTL_ARGS )
{
drm_via_mem_t mem;
DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t *)data, sizeof(mem));
switch (mem.type) {
case VIDEO :
if (via_fb_free(&mem) == 0)
return 0;
break;
case AGP :
if (via_agp_free(&mem) == 0)
return 0;
break;
}
return -EFAULT;
}
int via_fb_free(drm_via_mem_t* mem)
{
drm_via_mm_t fb;
int retval = 0;
if (!FBHeap) {
return -1;
}
fb.free = mem->index;
fb.context = mem->context;
if (!fb.free)
{
return -1;
}
via_mmFreeMem((PMemBlock)fb.free);
if (!del_alloc_set(fb.context, VIDEO, fb.free))
{
retval = -1;
}
DRM_DEBUG("free fb, free = %d\n", fb.free);
return retval;
}
int via_agp_free(drm_via_mem_t* mem)
{
drm_via_mm_t agp;
int retval = 0;
agp.free = mem->index;
agp.context = mem->context;
if (!agp.free)
return -1;
via_mmFreeMem((PMemBlock)agp.free);
if (!del_alloc_set(agp.context, AGP, agp.free)) {
retval = -1;
}
DRM_DEBUG("free agp, free = %d\n", agp.free);
return retval;
}
EXPORT_SYMBOL(via_fb_alloc);
EXPORT_SYMBOL(via_fb_free);

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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _via_drm_mm_h_
#define _via_drm_mm_h_
typedef struct {
unsigned int context;
unsigned int size;
unsigned long offset;
unsigned int free;
} drm_via_mm_t;
typedef struct {
unsigned int size;
unsigned long handle;
void *virtual;
} drm_via_dma_t;
int via_fb_alloc(drm_via_mem_t *mem);
int via_fb_free(drm_via_mem_t *mem);
int via_agp_alloc(drm_via_mem_t *mem);
int via_agp_free(drm_via_mem_t *mem);
#endif