diff options
author | Keith Whitwell <keith@tungstengraphics.com> | 2004-02-20 22:55:12 +0000 |
---|---|---|
committer | Keith Whitwell <keith@tungstengraphics.com> | 2004-02-20 22:55:12 +0000 |
commit | 82157579b586c8f1e147250e09f0837214019680 (patch) | |
tree | 4ee44b8c564542c0381b05a29dc1377bec910246 /linux-core | |
parent | 213247a4416b959738a658f2217d4d01ae9c1e67 (diff) |
drm_ctx_dtor.patch Submitted by: Erdi Chen
Diffstat (limited to 'linux-core')
-rw-r--r-- | linux-core/drmP.h | 16 | ||||
-rw-r--r-- | linux-core/drm_context.c | 29 | ||||
-rw-r--r-- | linux-core/drm_drv.c | 26 | ||||
-rw-r--r-- | linux-core/drm_memory_debug.h | 1 |
4 files changed, 72 insertions, 0 deletions
diff --git a/linux-core/drmP.h b/linux-core/drmP.h index b7b346d4..742c4ac5 100644 --- a/linux-core/drmP.h +++ b/linux-core/drmP.h @@ -158,6 +158,7 @@ #define DRM_MEM_CTXBITMAP 18 #define DRM_MEM_STUB 19 #define DRM_MEM_SGLISTS 20 +#define DRM_MEM_CTXLIST 21 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) @@ -651,6 +652,15 @@ typedef struct drm_map_list { typedef drm_map_t drm_local_map_t; +/** + * Context handle list + */ +typedef struct drm_ctx_list { + struct list_head head; /**< list head */ + drm_context_t handle; /**< context handle */ + drm_file_t *tag; /**< associated fd private data */ +} drm_ctx_list_t; + #if __HAVE_VBL_IRQ typedef struct drm_vbl_sig { @@ -711,6 +721,12 @@ typedef struct drm_device { drm_map_list_t *maplist; /**< Linked list of regions */ int map_count; /**< Number of mappable regions */ + /** \name Context handle management */ + /*@{*/ + drm_ctx_list_t *ctxlist; /**< Linked list of context handles */ + int ctx_count; /**< Number of context handles */ + struct semaphore ctxlist_sem; /**< For ctxlist */ + drm_map_t **context_sareas; /**< per-context SAREA's */ int max_context; diff --git a/linux-core/drm_context.c b/linux-core/drm_context.c index 82e90bcc..474b5ba0 100644 --- a/linux-core/drm_context.c +++ b/linux-core/drm_context.c @@ -402,6 +402,7 @@ int DRM(addctx)( struct inode *inode, struct file *filp, { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; + drm_ctx_list_t * ctx_entry; drm_ctx_t ctx; if ( copy_from_user( &ctx, (drm_ctx_t *)arg, sizeof(ctx) ) ) @@ -422,6 +423,20 @@ int DRM(addctx)( struct inode *inode, struct file *filp, if ( ctx.handle != DRM_KERNEL_CONTEXT ) DRIVER_CTX_CTOR(ctx.handle); /* XXX: also pass dev ? */ #endif + ctx_entry = DRM(alloc)( sizeof(*ctx_entry), DRM_MEM_CTXLIST ); + if ( !ctx_entry ) { + DRM_DEBUG("out of memory\n"); + return -ENOMEM; + } + + INIT_LIST_HEAD( &ctx_entry->head ); + ctx_entry->handle = ctx.handle; + ctx_entry->tag = priv; + + down( &dev->ctxlist_sem ); + list_add( &ctx_entry->head, &dev->ctxlist->head ); + ++dev->ctx_count; + up( &dev->ctxlist_sem ); if ( copy_to_user( (drm_ctx_t *)arg, &ctx, sizeof(ctx) ) ) return -EFAULT; @@ -544,6 +559,20 @@ int DRM(rmctx)( struct inode *inode, struct file *filp, DRM(ctxbitmap_free)( dev, ctx.handle ); } + down( &dev->ctxlist_sem ); + if ( !list_empty( &dev->ctxlist->head ) ) { + drm_ctx_list_t *pos, *n; + + list_for_each_entry_safe( pos, n, &dev->ctxlist->head, head ) { + if ( pos->handle == ctx.handle ) { + list_del( &pos->head ); + DRM(free)( pos, sizeof(*pos), DRM_MEM_CTXLIST ); + --dev->ctx_count; + } + } + } + up( &dev->ctxlist_sem ); + return 0; } diff --git a/linux-core/drm_drv.c b/linux-core/drm_drv.c index d0dceaab..3eec29a0 100644 --- a/linux-core/drm_drv.c +++ b/linux-core/drm_drv.c @@ -329,6 +329,12 @@ static int DRM(setup)( drm_device_t *dev ) memset(dev->maplist, 0, sizeof(*dev->maplist)); INIT_LIST_HEAD(&dev->maplist->head); + 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); + dev->vmalist = NULL; dev->sigdata.lock = dev->lock.hw_lock = NULL; init_waitqueue_head( &dev->lock.lock_queue ); @@ -567,6 +573,7 @@ static int DRM(probe)(struct pci_dev *pdev) dev->count_lock = SPIN_LOCK_UNLOCKED; init_timer( &dev->timer ); sema_init( &dev->struct_sem, 1 ); + sema_init( &dev->ctxlist_sem, 1 ); if ((dev->minor = DRM(stub_register)(DRIVER_NAME, &DRM(fops),dev)) < 0) return -EPERM; @@ -896,6 +903,25 @@ int DRM(release)( struct inode *inode, struct file *filp ) DRM(fasync)( -1, filp, 0 ); + down( &dev->ctxlist_sem ); + if ( !list_empty( &dev->ctxlist->head ) ) { + drm_ctx_list_t *pos, *n; + + list_for_each_entry_safe( pos, n, &dev->ctxlist->head, head ) { + if ( pos->tag == priv && + pos->handle != DRM_KERNEL_CONTEXT ) { +#ifdef DRIVER_CTX_DTOR + DRIVER_CTX_DTOR(pos->handle); +#endif + DRM(ctxbitmap_free)( dev, pos->handle ); + + list_del( &pos->head ); + DRM(free)( pos, sizeof(*pos), DRM_MEM_CTXLIST ); + } + } + } + up( &dev->ctxlist_sem ); + down( &dev->struct_sem ); if ( priv->remove_auth_on_close == 1 ) { drm_file_t *temp = dev->file_first; diff --git a/linux-core/drm_memory_debug.h b/linux-core/drm_memory_debug.h index fae419ec..2a2e7d79 100644 --- a/linux-core/drm_memory_debug.h +++ b/linux-core/drm_memory_debug.h @@ -68,6 +68,7 @@ static drm_mem_stats_t DRM(mem_stats)[] = { [DRM_MEM_TOTALAGP] = { "totalagp" }, [DRM_MEM_BOUNDAGP] = { "boundagp" }, [DRM_MEM_CTXBITMAP] = { "ctxbitmap"}, + [DRM_MEM_CTXLIST] = { "ctxlist" }, [DRM_MEM_STUB] = { "stub" }, { NULL, 0, } /* Last entry must be null */ }; |