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提交 ce65a44d 编写于 作者: T Thomas Hellstrom 提交者： Dave Airlie
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drm: add drm simple memory manager support for SiS and VIA drivers 

This add support to the SiS and VIA drivers for the simple memory manager.
This fixes a lot of problems with the current simple code these drivers used,
including locking and SMP issues.
Signed-off-by: NDave Airlie <airlied@linux.ie>
上级 3a1bd924
隐藏空白更改
内联 并排
Showing with 344 addition and 1403 deletion
drivers/char/drm/Makefile
浏览文件 @ ce65a44d
......@@ -16,9 +16,9 @@ i830-objs := i830_drv.o i830_dma.o i830_irq.o
i915-objs := i915_drv.o i915_dma.o i915_irq.o i915_mem.o
radeon-objs := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o radeon_irq.o r300_cmdbuf.o
ffb-objs := ffb_drv.o ffb_context.o
sis-objs := sis_drv.o sis_ds.o sis_mm.o
sis-objs := sis_drv.o sis_mm.o
savage-objs := savage_drv.o savage_bci.o savage_state.o
via-objs := via_irq.o via_drv.o via_ds.o via_map.o via_mm.o via_dma.o via_verifier.o via_video.o via_dmablit.o
via-objs := via_irq.o via_drv.o via_map.o via_mm.o via_dma.o via_verifier.o via_video.o via_dmablit.o
ifeq ($(CONFIG_COMPAT),y)
drm-objs += drm_ioc32.o
......
drivers/char/drm/sis_drv.c
浏览文件 @ ce65a44d
......@@ -35,11 +35,43 @@ static struct pci_device_id pciidlist[] = {
sisdrv_PCI_IDS
};
static int sis_driver_load(drm_device_t *dev, unsigned long chipset)
{
drm_sis_private_t *dev_priv;
int ret;
dev_priv = drm_calloc(1, sizeof(drm_sis_private_t), DRM_MEM_DRIVER);
if (dev_priv == NULL)
return DRM_ERR(ENOMEM);
dev->dev_private = (void *)dev_priv;
dev_priv->chipset = chipset;
ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
if (ret) {
drm_free(dev_priv, sizeof(dev_priv), DRM_MEM_DRIVER);
}
return ret;
}
static int sis_driver_unload(drm_device_t *dev)
{
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sman_takedown(&dev_priv->sman);
drm_free(dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER);
return 0;
}
static struct drm_driver driver = {
.driver_features = DRIVER_USE_AGP | DRIVER_USE_MTRR,
.context_ctor = sis_init_context,
.context_dtor = sis_final_context,
.reclaim_buffers = drm_core_reclaim_buffers,
.load = sis_driver_load,
.unload = sis_driver_unload,
.context_dtor = NULL,
.reclaim_buffers = NULL,
.reclaim_buffers_locked = sis_reclaim_buffers_locked,
.lastclose = sis_lastclose,
.get_map_ofs = drm_core_get_map_ofs,
.get_reg_ofs = drm_core_get_reg_ofs,
.ioctls = sis_ioctls,
......
drivers/char/drm/sis_drv.h
浏览文件 @ ce65a44d
......@@ -31,23 +31,29 @@
/* General customization:
*/
#define DRIVER_AUTHOR "SIS"
#define DRIVER_AUTHOR "SIS, Tungsten Graphics"
#define DRIVER_NAME "sis"
#define DRIVER_DESC "SIS 300/630/540"
#define DRIVER_DATE "20030826"
#define DRIVER_DATE "20060529"
#define DRIVER_MAJOR 1
#define DRIVER_MINOR 1
#define DRIVER_PATCHLEVEL 0
#define DRIVER_MINOR 2
#define DRIVER_PATCHLEVEL 1
#include "sis_ds.h"
#include "drm_sman.h"
typedef struct drm_sis_private {
memHeap_t *AGPHeap;
memHeap_t *FBHeap;
drm_local_map_t *mmio;
unsigned int idle_fault;
drm_sman_t sman;
unsigned int chipset;
int vram_initialized;
int agp_initialized;
unsigned long vram_offset;
unsigned long agp_offset;
} drm_sis_private_t;
extern int sis_init_context(drm_device_t * dev, int context);
extern int sis_final_context(drm_device_t * dev, int context);
extern void sis_reclaim_buffers_locked(drm_device_t *dev, struct file *filp);
extern void sis_lastclose(drm_device_t *dev);
extern drm_ioctl_desc_t sis_ioctls[];
extern int sis_max_ioctl;
......
drivers/char/drm/sis_ds.c 已删除 100644 → 0
浏览文件 @ 3a1bd924
/* sis_ds.c -- Private header for Direct Rendering Manager -*- linux-c -*-
* Created: Mon Jan 4 10:05:05 1999 by sclin@sis.com.tw
*
* 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, 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
* PRECISION INSIGHT 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:
* Sung-Ching Lin <sclin@sis.com.tw>
*
*/
#include "drmP.h"
#include "drm.h"
#include "sis_ds.h"
/* Set Data Structure, not check repeated value
* temporarily used
*/
set_t *setInit(void)
{
int i;
set_t *set;
set = (set_t *) drm_alloc(sizeof(set_t), DRM_MEM_DRIVER);
if (set != NULL) {
for (i = 0; i < SET_SIZE; i++) {
set->list[i].free_next = i + 1;
set->list[i].alloc_next = -1;
}
set->list[SET_SIZE - 1].free_next = -1;
set->free = 0;
set->alloc = -1;
set->trace = -1;
}
return set;
}
int 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 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 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 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 setDestroy(set_t * set)
{
drm_free(set, sizeof(set_t), DRM_MEM_DRIVER);
return 1;
}
/*
* GLX Hardware Device Driver common code
* Copyright (C) 1999 Wittawat Yamwong
*
* 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 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
* WITTAWAT YAMWONG, OR ANY OTHER CONTRIBUTORS 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 ISFREE(bptr) ((bptr)->free)
memHeap_t *mmInit(int ofs, int size)
{
PMemBlock blocks;
if (size <= 0)
return NULL;
blocks = (TMemBlock *) drm_calloc(1, sizeof(TMemBlock), DRM_MEM_DRIVER);
if (blocks != NULL) {
blocks->ofs = ofs;
blocks->size = size;
blocks->free = 1;
return (memHeap_t *) blocks;
} else
return NULL;
}
/* Checks if a pointer 'b' is part of the heap 'heap' */
int mmBlockInHeap(memHeap_t * heap, PMemBlock b)
{
TMemBlock *p;
if (heap == NULL || b == NULL)
return 0;
p = heap;
while (p != NULL && p != b) {
p = p->next;
}
if (p == b)
return 1;
else
return 0;
}
static TMemBlock *SliceBlock(TMemBlock * p,
int startofs, int size,
int reserved, int alignment)
{
TMemBlock *newblock;
/* break left */
if (startofs > p->ofs) {
newblock = (TMemBlock *) drm_calloc(1, sizeof(TMemBlock),
DRM_MEM_DRIVER);
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 *) drm_calloc(1, sizeof(TMemBlock),
DRM_MEM_DRIVER);
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 mmAllocMem(memHeap_t * heap, int size, int align2, int startSearch)
{
int mask, startofs, endofs;
TMemBlock *p;
if (heap == NULL || align2 < 0 || size <= 0)
return NULL;
mask = (1 << align2) - 1;
startofs = 0;
p = (TMemBlock *) heap;
while (p != NULL) {
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 == NULL)
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;
drm_free(q, sizeof(TMemBlock), DRM_MEM_DRIVER);
return 1;
}
return 0;
}
int mmFreeMem(PMemBlock b)
{
TMemBlock *p, *prev;
if (b == NULL)
return 0;
if (b->heap == NULL)
return -1;
p = b->heap;
prev = NULL;
while (p != NULL && p != b) {
prev = p;
p = p->next;
}
if (p == NULL || p->free || p->reserved)
return -1;
p->free = 1;
Join2Blocks(p);
if (prev)
Join2Blocks(prev);
return 0;
}
drivers/char/drm/sis_ds.h 已删除 100644 → 0
浏览文件 @ 3a1bd924
/* sis_ds.h -- Private header for Direct Rendering Manager -*- linux-c -*-
* Created: Mon Jan 4 10:05:05 1999 by sclin@sis.com.tw
*/
/*
* 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, 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
* PRECISION INSIGHT 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:
* Sung-Ching Lin <sclin@sis.com.tw>
*
*/
#ifndef __SIS_DS_H__
#define __SIS_DS_H__
/* Set Data Structure */
#define SET_SIZE 5000
typedef unsigned long 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 *setInit(void);
int setAdd(set_t * set, ITEM_TYPE item);
int setDel(set_t * set, ITEM_TYPE item);
int setFirst(set_t * set, ITEM_TYPE * item);
int setNext(set_t * set, ITEM_TYPE * item);
int setDestroy(set_t * set);
/*
* GLX Hardware Device Driver common code
* Copyright (C) 1999 Wittawat Yamwong
*
* 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 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
* WITTAWAT YAMWONG, OR ANY OTHER CONTRIBUTORS 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.
*
*/
struct mem_block_t {
struct mem_block_t *next;
struct mem_block_t *heap;
int ofs, size;
int align;
unsigned int free:1;
unsigned 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 *mmInit(int ofs, int size);
/*
* Allocate 'size' bytes with 2^align2 bytes alignment,
* restrict the search to free memory after 'startSearch'
* depth and back buffers should be in different 4mb banks
* to get better page hits if possible
* input: size = size of block
* align2 = 2^align2 bytes alignment
* startSearch = linear offset from start of heap to begin search
* return: pointer to the allocated block, 0 if error
*/
PMemBlock mmAllocMem(memHeap_t * heap, int size, int align2, int startSearch);
/*
* Returns 1 if the block 'b' is part of the heap 'heap'
*/
int mmBlockInHeap(PMemBlock heap, PMemBlock b);
/*
* Free block starts at offset
* input: pointer to a block
* return: 0 if OK, -1 if error
*/
int mmFreeMem(PMemBlock b);
/* For debuging purpose. */
void mmDumpMemInfo(memHeap_t * mmInit);
#endif /* __SIS_DS_H__ */
drivers/char/drm/sis_mm.c
浏览文件 @ ce65a44d
/* sis_mm.c -- Private header for Direct Rendering Manager -*- linux-c -*-
* Created: Mon Jan 4 10:05:05 1999 by sclin@sis.com.tw
/**************************************************************************
*
* Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
* All rights reserved.
* Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA.
* 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:
* 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 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
* PRECISION INSIGHT 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.
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS 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:
* Sung-Ching Lin <sclin@sis.com.tw>
*
**************************************************************************/
/*
* Authors:
* Thomas Hellstrm <thomas-at-tungstengraphics-dot-com>
*/
#include "drmP.h"
#include "sis_drm.h"
#include "sis_drv.h"
#include "sis_ds.h"
#if defined(__linux__) && defined(CONFIG_FB_SIS)
#include <video/sisfb.h>
#endif
#define MAX_CONTEXT 100
#define VIDEO_TYPE 0
#define AGP_TYPE 1
typedef struct {
int used;
int context;
set_t *sets[2]; /* 0 for video, 1 for AGP */
} sis_context_t;
static sis_context_t global_ppriv[MAX_CONTEXT];
#define SIS_MM_ALIGN_SHIFT 4
#define SIS_MM_ALIGN_MASK ( (1 << SIS_MM_ALIGN_SHIFT) - 1)
static int add_alloc_set(int context, int type, unsigned int val)
{
int i, retval = 0;
#if defined(CONFIG_FB_SIS)
/* fb management via fb device */
for (i = 0; i < MAX_CONTEXT; i++) {
if (global_ppriv[i].used && global_ppriv[i].context == context) {
retval = setAdd(global_ppriv[i].sets[type], val);
break;
}
}
return retval;
}
#define SIS_MM_ALIGN_SHIFT 0
#define SIS_MM_ALIGN_MASK 0
static int del_alloc_set(int context, int type, unsigned int val)
static void *sis_sman_mm_allocate(void *private, unsigned long size,
unsigned alignment)
{
int i, retval = 0;
struct sis_memreq req;
for (i = 0; i < MAX_CONTEXT; i++) {
if (global_ppriv[i].used && global_ppriv[i].context == context) {
retval = setDel(global_ppriv[i].sets[type], val);
break;
}
}
return retval;
req.size = size;
sis_malloc(&req);
if (req.size == 0)
return NULL;
else
return (void *)~req.offset;
}
/* fb management via fb device */
#if defined(__linux__) && defined(CONFIG_FB_SIS)
static int sis_fb_init(DRM_IOCTL_ARGS)
static void sis_sman_mm_free(void *private, void *ref)
{
return 0;
sis_free(~((unsigned long)ref));
}
static int sis_fb_alloc(DRM_IOCTL_ARGS)
static void sis_sman_mm_destroy(void *private)
{
drm_sis_mem_t fb;
struct sis_memreq req;
drm_sis_mem_t __user *argp = (drm_sis_mem_t __user *)data;
int retval = 0;
DRM_COPY_FROM_USER_IOCTL(fb, argp, sizeof(fb));
req.size = fb.size;
sis_malloc(&req);
if (req.offset) {
/* TODO */
fb.offset = req.offset;
fb.free = req.offset;
if (!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)) {
DRM_DEBUG("adding to allocation set fails\n");
sis_free(req.offset);
retval = DRM_ERR(EINVAL);
}
} else {
fb.offset = 0;
fb.size = 0;
fb.free = 0;
}
DRM_COPY_TO_USER_IOCTL(argp, fb, sizeof(fb));
DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size, req.offset);
return retval;
;
}
static int sis_fb_free(DRM_IOCTL_ARGS)
unsigned long sis_sman_mm_offset(void *private, void *ref)
{
drm_sis_mem_t fb;
int retval = 0;
DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t __user *) data, sizeof(fb));
if (!fb.free)
return DRM_ERR(EINVAL);
if (!del_alloc_set(fb.context, VIDEO_TYPE, fb.free))
retval = DRM_ERR(EINVAL);
sis_free(fb.free);
DRM_DEBUG("free fb, offset = 0x%lx\n", fb.free);
return retval;
return ~((unsigned long)ref);
}
#else
#endif
/* Called by the X Server to initialize the FB heap. Allocations will fail
* unless this is called. Offset is the beginning of the heap from the
* framebuffer offset (MaxXFBMem in XFree86).
*
* Memory layout according to Thomas Winischofer:
* |------------------|DDDDDDDDDDDDDDDDDDDDDDDDDDDDD|HHHH|CCCCCCCCCCC|
*
* X driver/sisfb HW- Command-
* framebuffer memory DRI heap Cursor queue
*/
static int sis_fb_init(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_fb_t fb;
int ret;
DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_fb_t __user *) data, sizeof(fb));
if (dev_priv == NULL) {
dev->dev_private = drm_calloc(1, sizeof(drm_sis_private_t),
DRM_MEM_DRIVER);
dev_priv = dev->dev_private;
if (dev_priv == NULL)
return ENOMEM;
mutex_lock(&dev->struct_mutex);
#if defined(CONFIG_FB_SIS)
{
drm_sman_mm_t sman_mm;
sman_mm.private = (void *)0xFFFFFFFF;
sman_mm.allocate = sis_sman_mm_allocate;
sman_mm.free = sis_sman_mm_free;
sman_mm.destroy = sis_sman_mm_destroy;
sman_mm.offset = sis_sman_mm_offset;
ret =
drm_sman_set_manager(&dev_priv->sman, VIDEO_TYPE, &sman_mm);
}
#else
ret = drm_sman_set_range(&dev_priv->sman, VIDEO_TYPE, 0,
fb.size >> SIS_MM_ALIGN_SHIFT);
#endif
if (dev_priv->FBHeap != NULL)
return DRM_ERR(EINVAL);
if (ret) {
DRM_ERROR("VRAM memory manager initialisation error\n");
mutex_unlock(&dev->struct_mutex);
return ret;
}
dev_priv->FBHeap = mmInit(fb.offset, fb.size);
dev_priv->vram_initialized = TRUE;
dev_priv->vram_offset = fb.offset;
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("offset = %u, size = %u", fb.offset, fb.size);
return 0;
}
static int sis_fb_alloc(DRM_IOCTL_ARGS)
static int sis_drm_alloc(drm_device_t * dev, drm_file_t * priv,
unsigned long data, int pool)
{
DRM_DEVICE;
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_mem_t __user *argp = (drm_sis_mem_t __user *)data;
drm_sis_mem_t fb;
PMemBlock block;
drm_sis_mem_t __user *argp = (drm_sis_mem_t __user *) data;
drm_sis_mem_t mem;
int retval = 0;
drm_memblock_item_t *item;
if (dev_priv == NULL || dev_priv->FBHeap == NULL)
DRM_COPY_FROM_USER_IOCTL(mem, argp, sizeof(mem));
mutex_lock(&dev->struct_mutex);
if (FALSE == ((pool == 0) ? dev_priv->vram_initialized :
dev_priv->agp_initialized)) {
DRM_ERROR
("Attempt to allocate from uninitialized memory manager.\n");
return DRM_ERR(EINVAL);
}
DRM_COPY_FROM_USER_IOCTL(fb, argp, sizeof(fb));
block = mmAllocMem(dev_priv->FBHeap, fb.size, 0, 0);
if (block) {
/* TODO */
fb.offset = block->ofs;
fb.free = (unsigned long)block;
if (!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)) {
DRM_DEBUG("adding to allocation set fails\n");
mmFreeMem((PMemBlock) fb.free);
retval = DRM_ERR(EINVAL);
}
mem.size = (mem.size + SIS_MM_ALIGN_MASK) >> SIS_MM_ALIGN_SHIFT;
item = drm_sman_alloc(&dev_priv->sman, pool, mem.size, 0,
(unsigned long)priv);
mutex_unlock(&dev->struct_mutex);
if (item) {
mem.offset = ((pool == 0) ?
dev_priv->vram_offset : dev_priv->agp_offset) +
(item->mm->
offset(item->mm, item->mm_info) << SIS_MM_ALIGN_SHIFT);
mem.free = item->user_hash.key;
mem.size = mem.size << SIS_MM_ALIGN_SHIFT;
} else {
fb.offset = 0;
fb.size = 0;
fb.free = 0;
mem.offset = 0;
mem.size = 0;
mem.free = 0;
retval = DRM_ERR(ENOMEM);
}
DRM_COPY_TO_USER_IOCTL(argp, fb, sizeof(fb));
DRM_COPY_TO_USER_IOCTL(argp, mem, sizeof(mem));
DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size, fb.offset);
DRM_DEBUG("alloc %d, size = %d, offset = %d\n", pool, mem.size,
mem.offset);
return retval;
}
static int sis_fb_free(DRM_IOCTL_ARGS)
static int sis_drm_free(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_mem_t fb;
drm_sis_mem_t mem;
int ret;
if (dev_priv == NULL || dev_priv->FBHeap == NULL)
return DRM_ERR(EINVAL);
DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t __user *) data, sizeof(fb));
DRM_COPY_FROM_USER_IOCTL(mem, (drm_sis_mem_t __user *) data,
sizeof(mem));
if (!mmBlockInHeap(dev_priv->FBHeap, (PMemBlock) fb.free))
return DRM_ERR(EINVAL);
mutex_lock(&dev->struct_mutex);
ret = drm_sman_free_key(&dev_priv->sman, mem.free);
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("free = 0x%lx\n", mem.free);
if (!del_alloc_set(fb.context, VIDEO_TYPE, fb.free))
return DRM_ERR(EINVAL);
mmFreeMem((PMemBlock) fb.free);
DRM_DEBUG("free fb, free = 0x%lx\n", fb.free);
return 0;
return ret;
}
#endif
/* agp memory management */
static int sis_fb_alloc(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
return sis_drm_alloc(dev, priv, data, VIDEO_TYPE);
}
static int sis_ioctl_agp_init(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_agp_t agp;
if (dev_priv == NULL) {
dev->dev_private = drm_calloc(1, sizeof(drm_sis_private_t),
DRM_MEM_DRIVER);
dev_priv = dev->dev_private;
if (dev_priv == NULL)
return ENOMEM;
}
if (dev_priv->AGPHeap != NULL)
return DRM_ERR(EINVAL);
int ret;
dev_priv = dev->dev_private;
DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_agp_t __user *) data,
sizeof(agp));
mutex_lock(&dev->struct_mutex);
ret = drm_sman_set_range(&dev_priv->sman, AGP_TYPE, 0,
agp.size >> SIS_MM_ALIGN_SHIFT);
if (ret) {
DRM_ERROR("AGP memory manager initialisation error\n");
mutex_unlock(&dev->struct_mutex);
return ret;
}
dev_priv->AGPHeap = mmInit(agp.offset, agp.size);
dev_priv->agp_initialized = TRUE;
dev_priv->agp_offset = agp.offset;
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size);
return 0;
}
static int sis_ioctl_agp_alloc(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_mem_t __user *argp = (drm_sis_mem_t __user *)data;
drm_sis_mem_t agp;
PMemBlock block;
int retval = 0;
if (dev_priv == NULL || dev_priv->AGPHeap == NULL)
return DRM_ERR(EINVAL);
DRM_COPY_FROM_USER_IOCTL(agp, argp, sizeof(agp));
block = mmAllocMem(dev_priv->AGPHeap, agp.size, 0, 0);
if (block) {
/* TODO */
agp.offset = block->ofs;
agp.free = (unsigned long)block;
if (!add_alloc_set(agp.context, AGP_TYPE, agp.free)) {
DRM_DEBUG("adding to allocation set fails\n");
mmFreeMem((PMemBlock) agp.free);
retval = -1;
}
} else {
agp.offset = 0;
agp.size = 0;
agp.free = 0;
}
DRM_COPY_TO_USER_IOCTL(argp, agp, sizeof(agp));
DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp.size, agp.offset);
return retval;
return sis_drm_alloc(dev, priv, data, AGP_TYPE);
}
static int sis_ioctl_agp_free(DRM_IOCTL_ARGS)
void sis_lastclose(struct drm_device *dev)
{
DRM_DEVICE;
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_mem_t agp;
if (dev_priv == NULL || dev_priv->AGPHeap == NULL)
return DRM_ERR(EINVAL);
DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_mem_t __user *) data,
sizeof(agp));
if (!mmBlockInHeap(dev_priv->AGPHeap, (PMemBlock) agp.free))
return DRM_ERR(EINVAL);
mmFreeMem((PMemBlock) agp.free);
if (!del_alloc_set(agp.context, AGP_TYPE, agp.free))
return DRM_ERR(EINVAL);
DRM_DEBUG("free agp, free = 0x%lx\n", agp.free);
return 0;
}
int sis_init_context(struct drm_device *dev, int context)
{
int i;
if (!dev_priv)
return;
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] = setInit();
global_ppriv[i].sets[1] = 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;
mutex_lock(&dev->struct_mutex);
drm_sman_cleanup(&dev_priv->sman);
dev_priv->vram_initialized = FALSE;
dev_priv->agp_initialized = FALSE;
mutex_unlock(&dev->struct_mutex);
}
int sis_final_context(struct drm_device *dev, int context)
void sis_reclaim_buffers_locked(drm_device_t * dev, struct file *filp)
{
int i;
drm_sis_private_t *dev_priv = dev->dev_private;
drm_file_t *priv = filp->private_data;
for (i = 0; i < MAX_CONTEXT; i++) {
if (global_ppriv[i].used &&
(global_ppriv[i].context == context))
break;
mutex_lock(&dev->struct_mutex);
if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)priv)) {
mutex_unlock(&dev->struct_mutex);
return;
}
if (i < MAX_CONTEXT) {
set_t *set;
ITEM_TYPE item;
int retval;
DRM_DEBUG("find socket %d, context = %d\n", i, context);
/* Video Memory */
set = global_ppriv[i].sets[0];
retval = setFirst(set, &item);
while (retval) {
DRM_DEBUG("free video memory 0x%lx\n", item);
#if defined(__linux__) && defined(CONFIG_FB_SIS)
sis_free(item);
#else
mmFreeMem((PMemBlock) item);
#endif
retval = setNext(set, &item);
}
setDestroy(set);
/* AGP Memory */
set = global_ppriv[i].sets[1];
retval = setFirst(set, &item);
while (retval) {
DRM_DEBUG("free agp memory 0x%lx\n", item);
mmFreeMem((PMemBlock) item);
retval = setNext(set, &item);
}
setDestroy(set);
global_ppriv[i].used = 0;
if (dev->driver->dma_quiescent) {
dev->driver->dma_quiescent(dev);
}
return 1;
drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)priv);
mutex_unlock(&dev->struct_mutex);
return;
}
drm_ioctl_desc_t sis_ioctls[] = {
[DRM_IOCTL_NR(DRM_SIS_FB_ALLOC)] = {sis_fb_alloc, DRM_AUTH},
[DRM_IOCTL_NR(DRM_SIS_FB_FREE)] = {sis_fb_free, DRM_AUTH},
[DRM_IOCTL_NR(DRM_SIS_AGP_INIT)] = {sis_ioctl_agp_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
[DRM_IOCTL_NR(DRM_SIS_FB_FREE)] = {sis_drm_free, DRM_AUTH},
[DRM_IOCTL_NR(DRM_SIS_AGP_INIT)] =
{sis_ioctl_agp_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY},
[DRM_IOCTL_NR(DRM_SIS_AGP_ALLOC)] = {sis_ioctl_agp_alloc, DRM_AUTH},
[DRM_IOCTL_NR(DRM_SIS_AGP_FREE)] = {sis_ioctl_agp_free, DRM_AUTH},
[DRM_IOCTL_NR(DRM_SIS_FB_INIT)] = {sis_fb_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY}
[DRM_IOCTL_NR(DRM_SIS_AGP_FREE)] = {sis_drm_free, DRM_AUTH},
[DRM_IOCTL_NR(DRM_SIS_FB_INIT)] =
{sis_fb_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY}
};
int sis_max_ioctl = DRM_ARRAY_SIZE(sis_ioctls);
drivers/char/drm/via_drv.c
浏览文件 @ ce65a44d
......@@ -43,7 +43,6 @@ static struct drm_driver driver = {
DRIVER_IRQ_SHARED | DRIVER_IRQ_VBL,
.load = via_driver_load,
.unload = via_driver_unload,
.context_ctor = via_init_context,
.context_dtor = via_final_context,
.vblank_wait = via_driver_vblank_wait,
.irq_preinstall = via_driver_irq_preinstall,
......@@ -53,6 +52,8 @@ static struct drm_driver driver = {
.dma_quiescent = via_driver_dma_quiescent,
.dri_library_name = dri_library_name,
.reclaim_buffers = drm_core_reclaim_buffers,
.reclaim_buffers_locked = via_reclaim_buffers_locked,
.lastclose = via_lastclose,
.get_map_ofs = drm_core_get_map_ofs,
.get_reg_ofs = drm_core_get_reg_ofs,
.ioctls = via_ioctls,
......
drivers/char/drm/via_drv.h
浏览文件 @ ce65a44d
......@@ -24,15 +24,16 @@
#ifndef _VIA_DRV_H_
#define _VIA_DRV_H_
#include "drm_sman.h"
#define DRIVER_AUTHOR "Various"
#define DRIVER_NAME "via"
#define DRIVER_DESC "VIA Unichrome / Pro"
#define DRIVER_DATE "20051116"
#define DRIVER_DATE "20060529"
#define DRIVER_MAJOR 2
#define DRIVER_MINOR 7
#define DRIVER_PATCHLEVEL 4
#define DRIVER_MINOR 10
#define DRIVER_PATCHLEVEL 0
#include "via_verifier.h"
......@@ -85,6 +86,12 @@ typedef struct drm_via_private {
uint32_t irq_enable_mask;
uint32_t irq_pending_mask;
int *irq_map;
unsigned int idle_fault;
drm_sman_t sman;
int vram_initialized;
int agp_initialized;
unsigned long vram_offset;
unsigned long agp_offset;
drm_via_blitq_t blit_queues[VIA_NUM_BLIT_ENGINES];
} drm_via_private_t;
......@@ -135,6 +142,9 @@ extern void via_init_futex(drm_via_private_t * dev_priv);
extern void via_cleanup_futex(drm_via_private_t * dev_priv);
extern void via_release_futex(drm_via_private_t * dev_priv, int context);
extern void via_reclaim_buffers_locked(drm_device_t *dev, struct file *filp);
extern void via_lastclose(drm_device_t *dev);
extern void via_dmablit_handler(drm_device_t *dev, int engine, int from_irq);
extern void via_init_dmablit(drm_device_t *dev);
......
drivers/char/drm/via_ds.c 已删除 100644 → 0
浏览文件 @ 3a1bd924
/*
* 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.
*/
#include "drmP.h"
#include "via_ds.h"
extern unsigned int VIA_DEBUG;
set_t *via_setInit(void)
{
int i;
set_t *set;
set = (set_t *) drm_alloc(sizeof(set_t), DRM_MEM_DRIVER);
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), DRM_MEM_DRIVER);
return 1;
}
#define ISFREE(bptr) ((bptr)->free)
#define fprintf(fmt, arg...) do{}while(0)
memHeap_t *via_mmInit(int ofs, int size)
{
PMemBlock blocks;
if (size <= 0)
return NULL;
blocks = (TMemBlock *) drm_calloc(1, sizeof(TMemBlock), DRM_MEM_DRIVER);
if (blocks) {
blocks->ofs = ofs;
blocks->size = size;
blocks->free = 1;
return (memHeap_t *) blocks;
} else
return NULL;
}
static TMemBlock *SliceBlock(TMemBlock * p,
int startofs, int size,
int reserved, int alignment)
{
TMemBlock *newblock;
/* break left */
if (startofs > p->ofs) {
newblock =
(TMemBlock *) drm_calloc(1, sizeof(TMemBlock),
DRM_MEM_DRIVER);
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 *) drm_calloc(1, sizeof(TMemBlock),
DRM_MEM_DRIVER);
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;
drm_free(q, sizeof(TMemBlock), DRM_MEM_DRIVER);
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;
}
drivers/char/drm/via_ds.h 已删除 100644 → 0
浏览文件 @ 3a1bd924
/*
* 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 "drmP.h"
/* Set Data Structure */
#define SET_SIZE 5000
typedef unsigned long 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;
unsigned int free:1;
unsigned 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);
#endif
drivers/char/drm/via_map.c
浏览文件 @ ce65a44d
......@@ -98,6 +98,7 @@ int via_map_init(DRM_IOCTL_ARGS)
int via_driver_load(drm_device_t *dev, unsigned long chipset)
{
drm_via_private_t *dev_priv;
int ret = 0;
dev_priv = drm_calloc(1, sizeof(drm_via_private_t), DRM_MEM_DRIVER);
if (dev_priv == NULL)
......@@ -108,13 +109,19 @@ int via_driver_load(drm_device_t *dev, unsigned long chipset)
if (chipset == VIA_PRO_GROUP_A)
dev_priv->pro_group_a = 1;
return 0;
ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
if (ret) {
drm_free(dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER);
}
return ret;
}
int via_driver_unload(drm_device_t *dev)
{
drm_via_private_t *dev_priv = dev->dev_private;
drm_sman_takedown(&dev_priv->sman);
drm_free(dev_priv, sizeof(drm_via_private_t), DRM_MEM_DRIVER);
return 0;
......
drivers/char/drm/via_mm.c
浏览文件 @ ce65a44d
/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
* Copyright 2006 Tungsten Graphics Inc., Bismarck, ND., USA.
* 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"),
......@@ -16,347 +16,194 @@
* 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,
* THE AUTHORS OR COPYRIGHT HOLDERS AND/OR THEIR 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: Thomas Hellstrm <thomas-at-tungstengraphics-dot-com>
*/
#include "drmP.h"
#include "via_drm.h"
#include "via_drv.h"
#include "via_ds.h"
#include "via_mm.h"
#define MAX_CONTEXT 100
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];
#include "drm_sman.h"
static int via_agp_alloc(drm_via_mem_t * mem);
static int via_agp_free(drm_via_mem_t * mem);
static int via_fb_alloc(drm_via_mem_t * mem);
static int via_fb_free(drm_via_mem_t * mem);
static int add_alloc_set(int context, int type, unsigned long 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 long 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;
#define VIA_MM_ALIGN_SHIFT 4
#define VIA_MM_ALIGN_MASK ( (1 << VIA_MM_ALIGN_SHIFT) - 1)
int via_agp_init(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_via_agp_t agp;
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
int ret;
DRM_COPY_FROM_USER_IOCTL(agp, (drm_via_agp_t __user *) data,
sizeof(agp));
mutex_lock(&dev->struct_mutex);
ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_AGP, 0,
agp.size >> VIA_MM_ALIGN_SHIFT);
if (ret) {
DRM_ERROR("AGP memory manager initialisation error\n");
mutex_unlock(&dev->struct_mutex);
return ret;
}
AgpHeap = via_mmInit(agp.offset, agp.size);
DRM_DEBUG("offset = %lu, size = %lu", (unsigned long)agp.offset,
(unsigned long)agp.size);
dev_priv->agp_initialized = TRUE;
dev_priv->agp_offset = agp.offset;
mutex_unlock(&dev->struct_mutex);
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_DEVICE;
drm_via_fb_t fb;
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
int ret;
DRM_COPY_FROM_USER_IOCTL(fb, (drm_via_fb_t __user *) data, sizeof(fb));
FBHeap = via_mmInit(fb.offset, fb.size);
mutex_lock(&dev->struct_mutex);
ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_VIDEO, 0,
fb.size >> VIA_MM_ALIGN_SHIFT);
DRM_DEBUG("offset = %lu, size = %lu", (unsigned long)fb.offset,
(unsigned long)fb.size);
if (ret) {
DRM_ERROR("VRAM memory manager initialisation error\n");
mutex_unlock(&dev->struct_mutex);
return ret;
}
return 0;
}
dev_priv->vram_initialized = TRUE;
dev_priv->vram_offset = fb.offset;
int via_init_context(struct drm_device *dev, 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;
}
}
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("offset = %u, size = %u", fb.offset, fb.size);
return 0;
return 1;
}
int via_final_context(struct drm_device *dev, int context)
{
int i;
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
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;
ITEM_TYPE 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%lx\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%lx\n", item);
via_mmFreeMem((PMemBlock) item);
retval = via_setNext(set, &item);
}
via_setDestroy(set);
global_ppriv[i].used = 0;
}
via_release_futex(dev_priv, context);
#if defined(__linux__)
/* Linux specific until context tracking code gets ported to BSD */
/* Last context, perform cleanup */
if (dev->ctx_count == 1 && dev->dev_private) {
DRM_DEBUG("Last Context\n");
if (dev->irq)
drm_irq_uninstall(dev);
via_cleanup_futex(dev_priv);
via_do_cleanup_map(dev);
}
#endif
return 1;
}
void via_lastclose(struct drm_device *dev)
{
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
if (!dev_priv)
return;
mutex_lock(&dev->struct_mutex);
drm_sman_cleanup(&dev_priv->sman);
dev_priv->vram_initialized = FALSE;
dev_priv->agp_initialized = FALSE;
mutex_unlock(&dev->struct_mutex);
}
int via_mem_alloc(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_via_mem_t mem;
int retval = 0;
drm_memblock_item_t *item;
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
unsigned long tmpSize;
DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t __user *) data,
sizeof(mem));
switch (mem.type) {
case VIA_MEM_VIDEO:
if (via_fb_alloc(&mem) < 0)
return -EFAULT;
DRM_COPY_TO_USER_IOCTL((drm_via_mem_t __user *) data, mem,
sizeof(mem));
return 0;
case VIA_MEM_AGP:
if (via_agp_alloc(&mem) < 0)
return -EFAULT;
DRM_COPY_TO_USER_IOCTL((drm_via_mem_t __user *) data, mem,
sizeof(mem));
return 0;
if (mem.type > VIA_MEM_AGP) {
DRM_ERROR("Unknown memory type allocation\n");
return DRM_ERR(EINVAL);
}
return -EFAULT;
}
static 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 long)block;
if (!add_alloc_set(fb.context, VIA_MEM_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;
mutex_lock(&dev->struct_mutex);
if (FALSE == ((mem.type == VIA_MEM_VIDEO) ? dev_priv->vram_initialized :
dev_priv->agp_initialized)) {
DRM_ERROR
("Attempt to allocate from uninitialized memory manager.\n");
mutex_unlock(&dev->struct_mutex);
return DRM_ERR(EINVAL);
}
mem->offset = fb.offset;
mem->index = fb.free;
DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size,
(int)fb.offset);
return retval;
}
static 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 long)block;
if (!add_alloc_set(agp.context, VIA_MEM_AGP, agp.free)) {
DRM_DEBUG("adding to allocation set fails\n");
via_mmFreeMem((PMemBlock) agp.free);
retval = -1;
}
tmpSize = (mem.size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT;
item = drm_sman_alloc(&dev_priv->sman, mem.type, tmpSize, 0,
(unsigned long)priv);
mutex_unlock(&dev->struct_mutex);
if (item) {
mem.offset = ((mem.type == VIA_MEM_VIDEO) ?
dev_priv->vram_offset : dev_priv->agp_offset) +
(item->mm->
offset(item->mm, item->mm_info) << VIA_MM_ALIGN_SHIFT);
mem.index = item->user_hash.key;
} else {
agp.offset = 0;
agp.size = 0;
agp.free = 0;
mem.offset = 0;
mem.size = 0;
mem.index = 0;
DRM_DEBUG("Video memory allocation failed\n");
retval = DRM_ERR(ENOMEM);
}
DRM_COPY_TO_USER_IOCTL((drm_via_mem_t __user *) data, mem, sizeof(mem));
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_DEVICE;
drm_via_private_t *dev_priv = dev->dev_private;
drm_via_mem_t mem;
int ret;
DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t __user *) data,
sizeof(mem));
switch (mem.type) {
mutex_lock(&dev->struct_mutex);
ret = drm_sman_free_key(&dev_priv->sman, mem.index);
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("free = 0x%lx\n", mem.index);
case VIA_MEM_VIDEO:
if (via_fb_free(&mem) == 0)
return 0;
break;
case VIA_MEM_AGP:
if (via_agp_free(&mem) == 0)
return 0;
break;
}
return -EFAULT;
return ret;
}
static 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, VIA_MEM_VIDEO, fb.free)) {
retval = -1;
}
DRM_DEBUG("free fb, free = %ld\n", fb.free);
return retval;
}
static int via_agp_free(drm_via_mem_t * mem)
void via_reclaim_buffers_locked(drm_device_t * dev, struct file *filp)
{
drm_via_mm_t agp;
int retval = 0;
drm_via_private_t *dev_priv = dev->dev_private;
drm_file_t *priv = filp->private_data;
agp.free = mem->index;
agp.context = mem->context;
if (!agp.free)
return -1;
via_mmFreeMem((PMemBlock) agp.free);
if (!del_alloc_set(agp.context, VIA_MEM_AGP, agp.free)) {
retval = -1;
mutex_lock(&dev->struct_mutex);
if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)priv)) {
mutex_unlock(&dev->struct_mutex);
return;
}
DRM_DEBUG("free agp, free = %ld\n", agp.free);
if (dev->driver->dma_quiescent) {
dev->driver->dma_quiescent(dev);
}
return retval;
drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)priv);
mutex_unlock(&dev->struct_mutex);
return;
}
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