diff options
Diffstat (limited to 'drivers/char/drm/sis_mm.c')
| -rw-r--r-- | drivers/char/drm/sis_mm.c | 456 |
1 files changed, 158 insertions, 298 deletions
diff --git a/drivers/char/drm/sis_mm.c b/drivers/char/drm/sis_mm.c index 5e9936bc307fc2..0eb1dca232b725 100644 --- a/drivers/char/drm/sis_mm.c +++ b/drivers/char/drm/sis_mm.c @@ -1,414 +1,274 @@ -/* 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 Hellström <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); |