--- /dev/null
+/*
+ * 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_ */
--- /dev/null
+/*
+ * 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"
--- /dev/null
+/*
+ * 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
--- /dev/null
+/*
+ * 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;
+ }
+}
--- /dev/null
+/*
+ * 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
--- /dev/null
+/* 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);
+ }
+}
+
--- /dev/null
+/*
+ * 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;
+}
+
+
+
--- /dev/null
+/*
+ * 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);
--- /dev/null
+/*
+ * 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
--- /dev/null
+/*
+ * 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
--- /dev/null
+/*
+ * 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_ */
--- /dev/null
+/*
+ * 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"
--- /dev/null
+/*
+ * 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
--- /dev/null
+/*
+ * 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;
+ }
+}
--- /dev/null
+/*
+ * 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
--- /dev/null
+/* 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);
+ }
+}
+
--- /dev/null
+/*
+ * 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;
+}
+
+
+
--- /dev/null
+/*
+ * 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);
--- /dev/null
+/*
+ * 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
projects / platform / upstream / libdrm.git / commitdiff