From bd1b331fae2813d9f03ceee649296f02edc0b893 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Sat, 26 May 2007 05:01:51 +1000 Subject: [PATCH] drm: cleanup use of Linux list handling macros This makes the drms use of the list handling macros a lot cleaner and more along the lines of how they should be used and uses them in some more places. Signed-off-by: Dave Airlie --- drivers/char/drm/drmP.h | 32 ++++++++------------- drivers/char/drm/drm_agpsupport.c | 28 +++++++----------- drivers/char/drm/drm_bufs.c | 43 +++++++++++----------------- drivers/char/drm/drm_context.c | 12 ++++---- drivers/char/drm/drm_drv.c | 36 ++++++++--------------- drivers/char/drm/drm_fops.c | 47 +++++++++---------------------- drivers/char/drm/drm_ioctl.c | 14 ++++++--- drivers/char/drm/drm_irq.c | 20 ++++++------- drivers/char/drm/drm_memory.c | 2 +- drivers/char/drm/drm_os_linux.h | 2 +- drivers/char/drm/drm_proc.c | 14 ++++----- drivers/char/drm/drm_stub.c | 8 ++---- drivers/char/drm/drm_vm.c | 34 +++++++--------------- drivers/char/drm/i810_dma.c | 6 ++-- drivers/char/drm/i830_dma.c | 5 ++-- drivers/char/drm/mga_dma.c | 2 +- drivers/char/drm/sis_mm.c | 2 +- drivers/char/drm/via_verifier.c | 4 +-- 18 files changed, 116 insertions(+), 195 deletions(-) diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h index d494315752a..22779582ee5 100644 --- a/drivers/char/drm/drmP.h +++ b/drivers/char/drm/drmP.h @@ -279,20 +279,15 @@ typedef struct drm_devstate { } drm_devstate_t; typedef struct drm_magic_entry { - drm_hash_item_t hash_item; struct list_head head; + drm_hash_item_t hash_item; struct drm_file *priv; struct drm_magic_entry *next; } drm_magic_entry_t; -typedef struct drm_magic_head { - struct drm_magic_entry *head; - struct drm_magic_entry *tail; -} drm_magic_head_t; - typedef struct drm_vma_entry { + struct list_head head; struct vm_area_struct *vma; - struct drm_vma_entry *next; pid_t pid; } drm_vma_entry_t; @@ -379,8 +374,7 @@ typedef struct drm_file { uid_t uid; drm_magic_t magic; unsigned long ioctl_count; - struct drm_file *next; - struct drm_file *prev; + struct list_head lhead; struct drm_head *head; int remove_auth_on_close; unsigned long lock_count; @@ -449,8 +443,7 @@ typedef struct drm_agp_mem { DRM_AGP_MEM *memory; unsigned long bound; /**< address */ int pages; - struct drm_agp_mem *prev; /**< previous entry */ - struct drm_agp_mem *next; /**< next entry */ + struct list_head head; } drm_agp_mem_t; /** @@ -460,7 +453,7 @@ typedef struct drm_agp_mem { */ typedef struct drm_agp_head { DRM_AGP_KERN agp_info; /**< AGP device information */ - drm_agp_mem_t *memory; /**< memory entries */ + struct list_head memory; unsigned long mode; /**< AGP mode */ struct agp_bridge_data *bridge; int enabled; /**< whether the AGP bus as been enabled */ @@ -669,28 +662,27 @@ typedef struct drm_device { /** \name Authentication */ /*@{ */ - drm_file_t *file_first; /**< file list head */ - drm_file_t *file_last; /**< file list tail */ + struct list_head filelist; drm_open_hash_t magiclist; /**< magic hash table */ struct list_head magicfree; /*@} */ /** \name Memory management */ /*@{ */ - drm_map_list_t *maplist; /**< Linked list of regions */ + struct list_head maplist; /**< Linked list of regions */ int map_count; /**< Number of mappable regions */ drm_open_hash_t map_hash; /**< User token hash table for maps */ /** \name Context handle management */ /*@{ */ - drm_ctx_list_t *ctxlist; /**< Linked list of context handles */ + struct list_head ctxlist; /**< Linked list of context handles */ int ctx_count; /**< Number of context handles */ struct mutex ctxlist_mutex; /**< For ctxlist */ drm_map_t **context_sareas; /**< per-context SAREA's */ int max_context; - drm_vma_entry_t *vmalist; /**< List of vmas (for debugging) */ + struct list_head vmalist; /**< List of vmas (for debugging) */ drm_lock_data_t lock; /**< Information on hardware lock */ /*@} */ @@ -725,8 +717,8 @@ typedef struct drm_device { atomic_t vbl_received; atomic_t vbl_received2; /**< number of secondary VBLANK interrupts */ spinlock_t vbl_lock; - drm_vbl_sig_t vbl_sigs; /**< signal list to send on VBLANK */ - drm_vbl_sig_t vbl_sigs2; /**< signals to send on secondary VBLANK */ + struct list_head vbl_sigs; /**< signal list to send on VBLANK */ + struct list_head vbl_sigs2; /**< signals to send on secondary VBLANK */ unsigned int vbl_pending; spinlock_t tasklet_lock; /**< For drm_locked_tasklet */ void (*locked_tasklet_func)(struct drm_device *dev); @@ -1089,7 +1081,7 @@ static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev, unsigned int token) { drm_map_list_t *_entry; - list_for_each_entry(_entry, &dev->maplist->head, head) + list_for_each_entry(_entry, &dev->maplist, head) if (_entry->user_token == token) return _entry->map; return NULL; diff --git a/drivers/char/drm/drm_agpsupport.c b/drivers/char/drm/drm_agpsupport.c index 40bfd9b01e3..54c59e7ec7b 100644 --- a/drivers/char/drm/drm_agpsupport.c +++ b/drivers/char/drm/drm_agpsupport.c @@ -232,11 +232,7 @@ int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request) entry->memory = memory; entry->bound = 0; entry->pages = pages; - entry->prev = NULL; - entry->next = dev->agp->memory; - if (dev->agp->memory) - dev->agp->memory->prev = entry; - dev->agp->memory = entry; + list_add(&entry->head, &dev->agp->memory); request->handle = entry->handle; request->physical = memory->physical; @@ -262,10 +258,12 @@ int drm_agp_alloc_ioctl(struct inode *inode, struct file *filp, return err; if (copy_to_user(argp, &request, sizeof(request))) { - drm_agp_mem_t *entry = dev->agp->memory; - - dev->agp->memory = entry->next; - dev->agp->memory->prev = NULL; + drm_agp_mem_t *entry; + list_for_each_entry(entry, &dev->agp->memory, head) { + if (entry->handle == request.handle) + break; + } + list_del(&entry->head); drm_free_agp(entry->memory, entry->pages); drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS); return -EFAULT; @@ -288,7 +286,7 @@ static drm_agp_mem_t *drm_agp_lookup_entry(drm_device_t * dev, { drm_agp_mem_t *entry; - for (entry = dev->agp->memory; entry; entry = entry->next) { + list_for_each_entry(entry, &dev->agp->memory, head) { if (entry->handle == handle) return entry; } @@ -413,13 +411,7 @@ int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request) if (entry->bound) drm_unbind_agp(entry->memory); - if (entry->prev) - entry->prev->next = entry->next; - else - dev->agp->memory = entry->next; - - if (entry->next) - entry->next->prev = entry->prev; + list_del(&entry->head); drm_free_agp(entry->memory, entry->pages); drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS); @@ -472,7 +464,7 @@ drm_agp_head_t *drm_agp_init(drm_device_t * dev) drm_free(head, sizeof(*head), DRM_MEM_AGPLISTS); return NULL; } - head->memory = NULL; + INIT_LIST_HEAD(&head->memory); head->cant_use_aperture = head->agp_info.cant_use_aperture; head->page_mask = head->agp_info.page_mask; diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c index c11345856ff..dac05787959 100644 --- a/drivers/char/drm/drm_bufs.c +++ b/drivers/char/drm/drm_bufs.c @@ -52,10 +52,8 @@ EXPORT_SYMBOL(drm_get_resource_len); static drm_map_list_t *drm_find_matching_map(drm_device_t *dev, drm_local_map_t *map) { - struct list_head *list; - - list_for_each(list, &dev->maplist->head) { - drm_map_list_t *entry = list_entry(list, drm_map_list_t, head); + drm_map_list_t *entry; + list_for_each_entry(entry, &dev->maplist, head) { if (entry->map && map->type == entry->map->type && ((entry->map->offset == map->offset) || (map->type == _DRM_SHM && map->flags==_DRM_CONTAINS_LOCK))) { @@ -237,14 +235,14 @@ static int drm_addmap_core(drm_device_t * dev, unsigned int offset, * skipped and we double check that dev->agp->memory is * actually set as well as being invalid before EPERM'ing */ - for (entry = dev->agp->memory; entry; entry = entry->next) { + list_for_each_entry(entry, &dev->agp->memory, head) { if ((map->offset >= entry->bound) && (map->offset + map->size <= entry->bound + entry->pages * PAGE_SIZE)) { valid = 1; break; } } - if (dev->agp->memory && !valid) { + if (!list_empty(&dev->agp->memory) && !valid) { drm_free(map, sizeof(*map), DRM_MEM_MAPS); return -EPERM; } @@ -289,7 +287,7 @@ static int drm_addmap_core(drm_device_t * dev, unsigned int offset, list->map = map; mutex_lock(&dev->struct_mutex); - list_add(&list->head, &dev->maplist->head); + list_add(&list->head, &dev->maplist); /* Assign a 32-bit handle */ /* We do it here so that dev->struct_mutex protects the increment */ @@ -380,29 +378,24 @@ int drm_addmap_ioctl(struct inode *inode, struct file *filp, */ int drm_rmmap_locked(drm_device_t *dev, drm_local_map_t *map) { - struct list_head *list; - drm_map_list_t *r_list = NULL; + drm_map_list_t *r_list = NULL, *list_t; drm_dma_handle_t dmah; + int found = 0; /* Find the list entry for the map and remove it */ - list_for_each(list, &dev->maplist->head) { - r_list = list_entry(list, drm_map_list_t, head); - + list_for_each_entry_safe(r_list, list_t, &dev->maplist, head) { if (r_list->map == map) { - list_del(list); + list_del(&r_list->head); drm_ht_remove_key(&dev->map_hash, r_list->user_token >> PAGE_SHIFT); - drm_free(list, sizeof(*list), DRM_MEM_MAPS); + drm_free(r_list, sizeof(*r_list), DRM_MEM_MAPS); + found = 1; break; } } - /* List has wrapped around to the head pointer, or it's empty and we - * didn't find anything. - */ - if (list == (&dev->maplist->head)) { + if (!found) return -EINVAL; - } switch (map->type) { case _DRM_REGISTERS: @@ -460,7 +453,7 @@ int drm_rmmap_ioctl(struct inode *inode, struct file *filp, drm_device_t *dev = priv->head->dev; drm_map_t request; drm_local_map_t *map = NULL; - struct list_head *list; + drm_map_list_t *r_list; int ret; if (copy_from_user(&request, (drm_map_t __user *) arg, sizeof(request))) { @@ -468,9 +461,7 @@ int drm_rmmap_ioctl(struct inode *inode, struct file *filp, } mutex_lock(&dev->struct_mutex); - list_for_each(list, &dev->maplist->head) { - drm_map_list_t *r_list = list_entry(list, drm_map_list_t, head); - + list_for_each_entry(r_list, &dev->maplist, head) { if (r_list->map && r_list->user_token == (unsigned long)request.handle && r_list->map->flags & _DRM_REMOVABLE) { @@ -482,7 +473,7 @@ int drm_rmmap_ioctl(struct inode *inode, struct file *filp, /* List has wrapped around to the head pointer, or its empty we didn't * find anything. */ - if (list == (&dev->maplist->head)) { + if (list_empty(&dev->maplist) || !map) { mutex_unlock(&dev->struct_mutex); return -EINVAL; } @@ -606,14 +597,14 @@ int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request) /* Make sure buffers are located in AGP memory that we own */ valid = 0; - for (agp_entry = dev->agp->memory; agp_entry; agp_entry = agp_entry->next) { + list_for_each_entry(agp_entry, &dev->agp->memory, head) { if ((agp_offset >= agp_entry->bound) && (agp_offset + total * count <= agp_entry->bound + agp_entry->pages * PAGE_SIZE)) { valid = 1; break; } } - if (dev->agp->memory && !valid) { + if (!list_empty(&dev->agp->memory) && !valid) { DRM_DEBUG("zone invalid\n"); return -EINVAL; } diff --git a/drivers/char/drm/drm_context.c b/drivers/char/drm/drm_context.c index 83094c73da6..e1f882dc55a 100644 --- a/drivers/char/drm/drm_context.c +++ b/drivers/char/drm/drm_context.c @@ -233,7 +233,7 @@ int drm_getsareactx(struct inode *inode, struct file *filp, mutex_unlock(&dev->struct_mutex); request.handle = NULL; - list_for_each_entry(_entry, &dev->maplist->head, head) { + list_for_each_entry(_entry, &dev->maplist, head) { if (_entry->map == map) { request.handle = (void *)(unsigned long)_entry->user_token; @@ -268,15 +268,13 @@ int drm_setsareactx(struct inode *inode, struct file *filp, drm_ctx_priv_map_t request; drm_map_t *map = NULL; drm_map_list_t *r_list = NULL; - struct list_head *list; if (copy_from_user(&request, (drm_ctx_priv_map_t __user *) arg, sizeof(request))) return -EFAULT; mutex_lock(&dev->struct_mutex); - list_for_each(list, &dev->maplist->head) { - r_list = list_entry(list, drm_map_list_t, head); + list_for_each_entry(r_list, &dev->maplist, head) { if (r_list->map && r_list->user_token == (unsigned long)request.handle) goto found; @@ -449,7 +447,7 @@ int drm_addctx(struct inode *inode, struct file *filp, ctx_entry->tag = priv; mutex_lock(&dev->ctxlist_mutex); - list_add(&ctx_entry->head, &dev->ctxlist->head); + list_add(&ctx_entry->head, &dev->ctxlist); ++dev->ctx_count; mutex_unlock(&dev->ctxlist_mutex); @@ -575,10 +573,10 @@ int drm_rmctx(struct inode *inode, struct file *filp, } mutex_lock(&dev->ctxlist_mutex); - if (!list_empty(&dev->ctxlist->head)) { + if (!list_empty(&dev->ctxlist)) { drm_ctx_list_t *pos, *n; - list_for_each_entry_safe(pos, n, &dev->ctxlist->head, head) { + list_for_each_entry_safe(pos, n, &dev->ctxlist, head) { if (pos->handle == ctx.handle) { list_del(&pos->head); drm_free(pos, sizeof(*pos), DRM_MEM_CTXLIST); diff --git a/drivers/char/drm/drm_drv.c b/drivers/char/drm/drm_drv.c index 8e77b7ed0f4..d7d10f118ea 100644 --- a/drivers/char/drm/drm_drv.c +++ b/drivers/char/drm/drm_drv.c @@ -132,8 +132,8 @@ static drm_ioctl_desc_t drm_ioctls[] = { int drm_lastclose(drm_device_t * dev) { drm_magic_entry_t *pt, *next; - drm_map_list_t *r_list; - drm_vma_entry_t *vma, *vma_next; + drm_map_list_t *r_list, *list_t; + drm_vma_entry_t *vma, *vma_temp; int i; DRM_DEBUG("\n"); @@ -178,19 +178,17 @@ int drm_lastclose(drm_device_t * dev) /* Clear AGP information */ if (drm_core_has_AGP(dev) && dev->agp) { - drm_agp_mem_t *entry; - drm_agp_mem_t *nexte; + drm_agp_mem_t *entry, *tempe; /* Remove AGP resources, but leave dev->agp intact until drv_cleanup is called. */ - for (entry = dev->agp->memory; entry; entry = nexte) { - nexte = entry->next; + list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) { if (entry->bound) drm_unbind_agp(entry->memory); drm_free_agp(entry->memory, entry->pages); drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS); } - dev->agp->memory = NULL; + INIT_LIST_HEAD(&dev->agp->memory); if (dev->agp->acquired) drm_agp_release(dev); @@ -204,20 +202,14 @@ int drm_lastclose(drm_device_t * dev) } /* Clear vma list (only built for debugging) */ - if (dev->vmalist) { - for (vma = dev->vmalist; vma; vma = vma_next) { - vma_next = vma->next; - drm_free(vma, sizeof(*vma), DRM_MEM_VMAS); - } - dev->vmalist = NULL; + list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) { + list_del(&vma->head); + drm_free(vma, sizeof(*vma), DRM_MEM_VMAS); } - if (dev->maplist) { - while (!list_empty(&dev->maplist->head)) { - struct list_head *list = dev->maplist->head.next; - r_list = list_entry(list, drm_map_list_t, head); - drm_rmmap_locked(dev, r_list->map); - } + list_for_each_entry_safe(r_list, list_t, &dev->maplist, head) { + drm_rmmap_locked(dev, r_list->map); + r_list = NULL; } if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && dev->queuelist) { @@ -309,11 +301,7 @@ static void drm_cleanup(drm_device_t * dev) drm_lastclose(dev); - if (dev->maplist) { - drm_free(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS); - dev->maplist = NULL; - drm_ht_remove(&dev->map_hash); - } + drm_ht_remove(&dev->map_hash); drm_ctxbitmap_cleanup(dev); diff --git a/drivers/char/drm/drm_fops.c b/drivers/char/drm/drm_fops.c index 3b159cab3bc..e82e78fa42b 100644 --- a/drivers/char/drm/drm_fops.c +++ b/drivers/char/drm/drm_fops.c @@ -79,13 +79,9 @@ static int drm_setup(drm_device_t * dev) drm_ht_create(&dev->magiclist, DRM_MAGIC_HASH_ORDER); INIT_LIST_HEAD(&dev->magicfree); - dev->ctxlist = drm_alloc(sizeof(*dev->ctxlist), DRM_MEM_CTXLIST); - if (dev->ctxlist == NULL) - return -ENOMEM; - memset(dev->ctxlist, 0, sizeof(*dev->ctxlist)); - INIT_LIST_HEAD(&dev->ctxlist->head); + INIT_LIST_HEAD(&dev->ctxlist); + INIT_LIST_HEAD(&dev->vmalist); - dev->vmalist = NULL; dev->sigdata.lock = NULL; init_waitqueue_head(&dev->lock.lock_queue); dev->queue_count = 0; @@ -258,6 +254,8 @@ static int drm_open_helper(struct inode *inode, struct file *filp, priv->authenticated = capable(CAP_SYS_ADMIN); priv->lock_count = 0; + INIT_LIST_HEAD(&priv->lhead); + if (dev->driver->open) { ret = dev->driver->open(dev, priv); if (ret < 0) @@ -265,19 +263,10 @@ static int drm_open_helper(struct inode *inode, struct file *filp, } mutex_lock(&dev->struct_mutex); - if (!dev->file_last) { - priv->next = NULL; - priv->prev = NULL; - dev->file_first = priv; - dev->file_last = priv; - /* first opener automatically becomes master */ + if (list_empty(&dev->filelist)) priv->master = 1; - } else { - priv->next = NULL; - priv->prev = dev->file_last; - dev->file_last->next = priv; - dev->file_last = priv; - } + + list_add(&priv->lhead, &dev->filelist); mutex_unlock(&dev->struct_mutex); #ifdef __alpha__ @@ -414,10 +403,10 @@ int drm_release(struct inode *inode, struct file *filp) drm_fasync(-1, filp, 0); mutex_lock(&dev->ctxlist_mutex); - if (dev->ctxlist && (!list_empty(&dev->ctxlist->head))) { + if (!list_empty(&dev->ctxlist)) { drm_ctx_list_t *pos, *n; - list_for_each_entry_safe(pos, n, &dev->ctxlist->head, head) { + list_for_each_entry_safe(pos, n, &dev->ctxlist, head) { if (pos->tag == priv && pos->handle != DRM_KERNEL_CONTEXT) { if (dev->driver->context_dtor) @@ -436,22 +425,12 @@ int drm_release(struct inode *inode, struct file *filp) mutex_lock(&dev->struct_mutex); if (priv->remove_auth_on_close == 1) { - drm_file_t *temp = dev->file_first; - while (temp) { + drm_file_t *temp; + + list_for_each_entry(temp, &dev->filelist, lhead) temp->authenticated = 0; - temp = temp->next; - } - } - if (priv->prev) { - priv->prev->next = priv->next; - } else { - dev->file_first = priv->next; - } - if (priv->next) { - priv->next->prev = priv->prev; - } else { - dev->file_last = priv->prev; } + list_del(&priv->lhead); mutex_unlock(&dev->struct_mutex); if (dev->driver->postclose) diff --git a/drivers/char/drm/drm_ioctl.c b/drivers/char/drm/drm_ioctl.c index 565895547d7..96b982f1f4a 100644 --- a/drivers/char/drm/drm_ioctl.c +++ b/drivers/char/drm/drm_ioctl.c @@ -204,7 +204,7 @@ int drm_getmap(struct inode *inode, struct file *filp, } i = 0; - list_for_each(list, &dev->maplist->head) { + list_for_each(list, &dev->maplist) { if (i == idx) { r_list = list_entry(list, drm_map_list_t, head); break; @@ -257,12 +257,18 @@ int drm_getclient(struct inode *inode, struct file *filp, return -EFAULT; idx = client.idx; mutex_lock(&dev->struct_mutex); - for (i = 0, pt = dev->file_first; i < idx && pt; i++, pt = pt->next) ; - - if (!pt) { + + if (list_empty(&dev->filelist)) { mutex_unlock(&dev->struct_mutex); return -EINVAL; } + + i = 0; + list_for_each_entry(pt, &dev->filelist, lhead) { + if (i++ >= idx) + break; + } + client.auth = pt->authenticated; client.pid = pt->pid; client.uid = pt->uid; diff --git a/drivers/char/drm/drm_irq.c b/drivers/char/drm/drm_irq.c index 2e75331fd83..ae3053ce7b2 100644 --- a/drivers/char/drm/drm_irq.c +++ b/drivers/char/drm/drm_irq.c @@ -120,8 +120,8 @@ static int drm_irq_install(drm_device_t * dev) spin_lock_init(&dev->vbl_lock); - INIT_LIST_HEAD(&dev->vbl_sigs.head); - INIT_LIST_HEAD(&dev->vbl_sigs2.head); + INIT_LIST_HEAD(&dev->vbl_sigs); + INIT_LIST_HEAD(&dev->vbl_sigs2); dev->vbl_pending = 0; } @@ -292,7 +292,7 @@ int drm_wait_vblank(DRM_IOCTL_ARGS) if (flags & _DRM_VBLANK_SIGNAL) { unsigned long irqflags; - drm_vbl_sig_t *vbl_sigs = (flags & _DRM_VBLANK_SECONDARY) + struct list_head *vbl_sigs = (flags & _DRM_VBLANK_SECONDARY) ? &dev->vbl_sigs2 : &dev->vbl_sigs; drm_vbl_sig_t *vbl_sig; @@ -302,7 +302,7 @@ int drm_wait_vblank(DRM_IOCTL_ARGS) * for the same vblank sequence number; nothing to be done in * that case */ - list_for_each_entry(vbl_sig, &vbl_sigs->head, head) { + list_for_each_entry(vbl_sig, vbl_sigs, head) { if (vbl_sig->sequence == vblwait.request.sequence && vbl_sig->info.si_signo == vblwait.request.signal && vbl_sig->task == current) { @@ -336,7 +336,7 @@ int drm_wait_vblank(DRM_IOCTL_ARGS) spin_lock_irqsave(&dev->vbl_lock, irqflags); - list_add_tail((struct list_head *)vbl_sig, &vbl_sigs->head); + list_add_tail(&vbl_sig->head, vbl_sigs); spin_unlock_irqrestore(&dev->vbl_lock, irqflags); @@ -379,20 +379,18 @@ void drm_vbl_send_signals(drm_device_t * dev) spin_lock_irqsave(&dev->vbl_lock, flags); for (i = 0; i < 2; i++) { - struct list_head *list, *tmp; - drm_vbl_sig_t *vbl_sig; - drm_vbl_sig_t *vbl_sigs = i ? &dev->vbl_sigs2 : &dev->vbl_sigs; + drm_vbl_sig_t *vbl_sig, *tmp; + struct list_head *vbl_sigs = i ? &dev->vbl_sigs2 : &dev->vbl_sigs; unsigned int vbl_seq = atomic_read(i ? &dev->vbl_received2 : &dev->vbl_received); - list_for_each_safe(list, tmp, &vbl_sigs->head) { - vbl_sig = list_entry(list, drm_vbl_sig_t, head); + list_for_each_entry_safe(vbl_sig, tmp, vbl_sigs, head) { if ((vbl_seq - vbl_sig->sequence) <= (1 << 23)) { vbl_sig->info.si_code = vbl_seq; send_sig_info(vbl_sig->info.si_signo, &vbl_sig->info, vbl_sig->task); - list_del(list); + list_del(&vbl_sig->head); drm_free(vbl_sig, sizeof(*vbl_sig), DRM_MEM_DRIVER); diff --git a/drivers/char/drm/drm_memory.c b/drivers/char/drm/drm_memory.c index 92a86708237..0683334f16c 100644 --- a/drivers/char/drm/drm_memory.c +++ b/drivers/char/drm/drm_memory.c @@ -94,7 +94,7 @@ static void *agp_remap(unsigned long offset, unsigned long size, offset -= dev->hose->mem_space->start; #endif - for (agpmem = dev->agp->memory; agpmem; agpmem = agpmem->next) + list_for_each_entry(agpmem, &dev->agp->memory, head) if (agpmem->bound <= offset && (agpmem->bound + (agpmem->pages << PAGE_SHIFT)) >= (offset + size)) diff --git a/drivers/char/drm/drm_os_linux.h b/drivers/char/drm/drm_os_linux.h index 0fe7b449792..e6e5ae89e10 100644 --- a/drivers/char/drm/drm_os_linux.h +++ b/drivers/char/drm/drm_os_linux.h @@ -104,7 +104,7 @@ static __inline__ int mtrr_del(int reg, unsigned long base, unsigned long size) #define DRM_GETSAREA() \ do { \ drm_map_list_t *entry; \ - list_for_each_entry( entry, &dev->maplist->head, head ) { \ + list_for_each_entry( entry, &dev->maplist, head ) { \ if ( entry->map && \ entry->map->type == _DRM_SHM && \ (entry->map->flags & _DRM_CONTAINS_LOCK) ) { \ diff --git a/drivers/char/drm/drm_proc.c b/drivers/char/drm/drm_proc.c index b204498d1a2..1b1735ab3fb 100644 --- a/drivers/char/drm/drm_proc.c +++ b/drivers/char/drm/drm_proc.c @@ -209,7 +209,6 @@ static int drm__vm_info(char *buf, char **start, off_t offset, int request, int len = 0; drm_map_t *map; drm_map_list_t *r_list; - struct list_head *list; /* Hardcoded from _DRM_FRAME_BUFFER, _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and @@ -229,9 +228,7 @@ static int drm__vm_info(char *buf, char **start, off_t offset, int request, DRM_PROC_PRINT("slot offset size type flags " "address mtrr\n\n"); i = 0; - if (dev->maplist != NULL) - list_for_each(list, &dev->maplist->head) { - r_list = list_entry(list, drm_map_list_t, head); + list_for_each_entry(r_list, &dev->maplist, head) { map = r_list->map; if (!map) continue; @@ -242,14 +239,15 @@ static int drm__vm_info(char *buf, char **start, off_t offset, int request, DRM_PROC_PRINT("%4d 0x%08lx 0x%08lx %4.4s 0x%02x 0x%08x ", i, map->offset, - map->size, type, map->flags, r_list->user_token); + map->size, type, map->flags, + r_list->user_token); if (map->mtrr < 0) { DRM_PROC_PRINT("none\n"); } else { DRM_PROC_PRINT("%4d\n", map->mtrr); } i++; - } + } if (len > request + offset) return request; @@ -444,7 +442,7 @@ static int drm__clients_info(char *buf, char **start, off_t offset, *eof = 0; DRM_PROC_PRINT("a dev pid uid magic ioctls\n\n"); - for (priv = dev->file_first; priv; priv = priv->next) { + list_for_each_entry(priv, &dev->filelist, lhead) { DRM_PROC_PRINT("%c %3d %5d %5d %10u %10lu\n", priv->authenticated ? 'y' : 'n', priv->minor, @@ -497,7 +495,7 @@ static int drm__vma_info(char *buf, char **start, off_t offset, int request, DRM_PROC_PRINT("vma use count: %d, high_memory = %p, 0x%08lx\n", atomic_read(&dev->vma_count), high_memory, virt_to_phys(high_memory)); - for (pt = dev->vmalist; pt; pt = pt->next) { + list_for_each_entry(pt, &dev->vmalist, head) { if (!(vma = pt->vma)) continue; DRM_PROC_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx000", diff --git a/drivers/char/drm/drm_stub.c b/drivers/char/drm/drm_stub.c index 19408adcc77..59a9e7e5f12 100644 --- a/drivers/char/drm/drm_stub.c +++ b/drivers/char/drm/drm_stub.c @@ -59,6 +59,7 @@ static int drm_fill_in_dev(drm_device_t * dev, struct pci_dev *pdev, { int retcode; + INIT_LIST_HEAD(&dev->filelist); spin_lock_init(&dev->count_lock); spin_lock_init(&dev->drw_lock); spin_lock_init(&dev->tasklet_lock); @@ -76,15 +77,12 @@ static int drm_fill_in_dev(drm_device_t * dev, struct pci_dev *pdev, #endif dev->irq = pdev->irq; - dev->maplist = drm_calloc(1, sizeof(*dev->maplist), DRM_MEM_MAPS); - if (dev->maplist == NULL) - return -ENOMEM; - INIT_LIST_HEAD(&dev->maplist->head); if (drm_ht_create(&dev->map_hash, 12)) { - drm_free(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS); return -ENOMEM; } + INIT_LIST_HEAD(&dev->maplist); + /* the DRM has 6 basic counters */ dev->counters = 6; dev->types[0] = _DRM_STAT_LOCK; diff --git a/drivers/char/drm/drm_vm.c b/drivers/char/drm/drm_vm.c index b5c5b9fa84c..948e60d272d 100644 --- a/drivers/char/drm/drm_vm.c +++ b/drivers/char/drm/drm_vm.c @@ -116,7 +116,7 @@ static __inline__ struct page *drm_do_vm_nopage(struct vm_area_struct *vma, /* * It's AGP memory - find the real physical page to map */ - for (agpmem = dev->agp->memory; agpmem; agpmem = agpmem->next) { + list_for_each_entry(agpmem, &dev->agp->memory, head) { if (agpmem->bound <= baddr && agpmem->bound + agpmem->pages * PAGE_SIZE > baddr) break; @@ -196,10 +196,9 @@ static void drm_vm_shm_close(struct vm_area_struct *vma) { drm_file_t *priv = vma->vm_file->private_data; drm_device_t *dev = priv->head->dev; - drm_vma_entry_t *pt, *prev, *next; + drm_vma_entry_t *pt, *temp; drm_map_t *map; drm_map_list_t *r_list; - struct list_head *list; int found_maps = 0; DRM_DEBUG("0x%08lx,0x%08lx\n", @@ -209,30 +208,22 @@ static void drm_vm_shm_close(struct vm_area_struct *vma) map = vma->vm_private_data; mutex_lock(&dev->struct_mutex); - for (pt = dev->vmalist, prev = NULL; pt; pt = next) { - next = pt->next; + list_for_each_entry_safe(pt, temp, &dev->vmalist, head) { if (pt->vma->vm_private_data == map) found_maps++; if (pt->vma == vma) { - if (prev) { - prev->next = pt->next; - } else { - dev->vmalist = pt->next; - } + list_del(&pt->head); drm_free(pt, sizeof(*pt), DRM_MEM_VMAS); - } else { - prev = pt; } } + /* We were the only map that was found */ if (found_maps == 1 && map->flags & _DRM_REMOVABLE) { /* Check to see if we are in the maplist, if we are not, then * we delete this mappings information. */ found_maps = 0; - list = &dev->maplist->head; - list_for_each(list, &dev->maplist->head) { - r_list = list_entry(list, drm_map_list_t, head); + list_for_each_entry(r_list, &dev->maplist, head) { if (r_list->map == map) found_maps++; } @@ -425,9 +416,8 @@ static void drm_vm_open_locked(struct vm_area_struct *vma) vma_entry = drm_alloc(sizeof(*vma_entry), DRM_MEM_VMAS); if (vma_entry) { vma_entry->vma = vma; - vma_entry->next = dev->vmalist; vma_entry->pid = current->pid; - dev->vmalist = vma_entry; + list_add(&vma_entry->head, &dev->vmalist); } } @@ -453,20 +443,16 @@ static void drm_vm_close(struct vm_area_struct *vma) { drm_file_t *priv = vma->vm_file->private_data; drm_device_t *dev = priv->head->dev; - drm_vma_entry_t *pt, *prev; + drm_vma_entry_t *pt, *temp; DRM_DEBUG("0x%08lx,0x%08lx\n", vma->vm_start, vma->vm_end - vma->vm_start); atomic_dec(&dev->vma_count); mutex_lock(&dev->struct_mutex); - for (pt = dev->vmalist, prev = NULL; pt; prev = pt, pt = pt->next) { + list_for_each_entry_safe(pt, temp, &dev->vmalist, head) { if (pt->vma == vma) { - if (prev) { - prev->next = pt->next; - } else { - dev->vmalist = pt->next; - } + list_del(&pt->head); drm_free(pt, sizeof(*pt), DRM_MEM_VMAS); break; } diff --git a/drivers/char/drm/i810_dma.c b/drivers/char/drm/i810_dma.c index 603d17fd2d6..53b8a793195 100644 --- a/drivers/char/drm/i810_dma.c +++ b/drivers/char/drm/i810_dma.c @@ -327,12 +327,10 @@ static int i810_dma_initialize(drm_device_t * dev, drm_i810_private_t * dev_priv, drm_i810_init_t * init) { - struct list_head *list; - + drm_map_list_t *r_list; memset(dev_priv, 0, sizeof(drm_i810_private_t)); - list_for_each(list, &dev->maplist->head) { - drm_map_list_t *r_list = list_entry(list, drm_map_list_t, head); + list_for_each_entry(r_list, &dev->maplist, head) { if (r_list->map && r_list->map->type == _DRM_SHM && r_list->map->flags & _DRM_CONTAINS_LOCK) { diff --git a/drivers/char/drm/i830_dma.c b/drivers/char/drm/i830_dma.c index 3314a9fea9e..3103258df61 100644 --- a/drivers/char/drm/i830_dma.c +++ b/drivers/char/drm/i830_dma.c @@ -334,12 +334,11 @@ static int i830_dma_initialize(drm_device_t * dev, drm_i830_private_t * dev_priv, drm_i830_init_t * init) { - struct list_head *list; + drm_map_list_t *r_list; memset(dev_priv, 0, sizeof(drm_i830_private_t)); - list_for_each(list, &dev->maplist->head) { - drm_map_list_t *r_list = list_entry(list, drm_map_list_t, head); + list_for_each_entry(r_list, &dev->maplist, head) { if (r_list->map && r_list->map->type == _DRM_SHM && r_list->map->flags & _DRM_CONTAINS_LOCK) { diff --git a/drivers/char/drm/mga_dma.c b/drivers/char/drm/mga_dma.c index c2a4bac1452..5781a8d934f 100644 --- a/drivers/char/drm/mga_dma.c +++ b/drivers/char/drm/mga_dma.c @@ -551,7 +551,7 @@ static int mga_do_agp_dma_bootstrap(drm_device_t * dev, drm_map_list_t *_entry; unsigned long agp_token = 0; - list_for_each_entry(_entry, &dev->maplist->head, head) { + list_for_each_entry(_entry, &dev->maplist, head) { if (_entry->map == dev->agp_buffer_map) agp_token = _entry->user_token; } diff --git a/drivers/char/drm/sis_mm.c b/drivers/char/drm/sis_mm.c index d26f5dbb785..6875a2eda09 100644 --- a/drivers/char/drm/sis_mm.c +++ b/drivers/char/drm/sis_mm.c @@ -234,7 +234,7 @@ static drm_local_map_t *sis_reg_init(drm_device_t *dev) drm_map_list_t *entry; drm_local_map_t *map; - list_for_each_entry(entry, &dev->maplist->head, head) { + list_for_each_entry(entry, &dev->maplist, head) { map = entry->map; if (!map) continue; diff --git a/drivers/char/drm/via_verifier.c b/drivers/char/drm/via_verifier.c index 2e7e0807828..8b4ea3027b2 100644 --- a/drivers/char/drm/via_verifier.c +++ b/drivers/char/drm/via_verifier.c @@ -254,7 +254,6 @@ static __inline__ drm_local_map_t *via_drm_lookup_agp_map(drm_via_state_t *seq, unsigned long size, drm_device_t * dev) { - struct list_head *list; drm_map_list_t *r_list; drm_local_map_t *map = seq->map_cache; @@ -263,8 +262,7 @@ static __inline__ drm_local_map_t *via_drm_lookup_agp_map(drm_via_state_t *seq, return map; } - list_for_each(list, &dev->maplist->head) { - r_list = (drm_map_list_t *) list; + list_for_each_entry(r_list, &dev->maplist, head) { map = r_list->map; if (!map) continue; -- 2.41.0