From d85e243259259d7702db0d344ae1ff7d26598227 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Fri, 30 Mar 2007 12:23:22 +0200 Subject: Fix an oops when trying to clean a not yet initialized memory type. --- linux-core/drm_bo.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'linux-core/drm_bo.c') diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index 1bdc6fef..cea6ef62 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -1991,10 +1991,16 @@ static int drm_bo_lock_mm(drm_device_t * dev, unsigned mem_type) drm_mem_type_manager_t *man = &bm->man[mem_type]; if (mem_type == 0 || mem_type >= DRM_BO_MEM_TYPES) { - DRM_ERROR("Illegal memory manager memory type %u,\n", mem_type); + DRM_ERROR("Illegal memory manager memory type %u.\n", mem_type); return -EINVAL; } + if (!man->has_type) { + DRM_ERROR("Memory type %u has not been initialized.\n", + mem_type); + return 0; + } + drm_bo_clean_unfenced(dev); ret = drm_bo_force_list_clean(dev, &man->lru, mem_type, 0, 1, 0); if (ret) -- cgit v1.2.3 From 7743af94492681f5aaf7cfdef78d695a6db7cbd0 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Fri, 30 Mar 2007 14:14:26 +0200 Subject: Evicted no-move buffers can get lost if they end up in another memory type than local. --- linux-core/drm_bo.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'linux-core/drm_bo.c') diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index cea6ef62..17d6fbc0 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -75,7 +75,8 @@ void drm_bo_add_to_lru(drm_buffer_object_t * bo) { drm_mem_type_manager_t *man; - if (!(bo->mem.mask & (DRM_BO_FLAG_NO_MOVE | DRM_BO_FLAG_NO_EVICT))) { + if (!(bo->mem.mask & (DRM_BO_FLAG_NO_MOVE | DRM_BO_FLAG_NO_EVICT)) + || bo->mem.mem_type != bo->pinned_mem_type) { man = &bo->dev->bm.man[bo->mem.mem_type]; list_add_tail(&bo->lru, &man->lru); } else { -- cgit v1.2.3 From e6e4946c82ab6f63143df7f49f38fa56f7e8980a Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Mon, 16 Apr 2007 16:23:05 +0200 Subject: Require the hardware lock for buffer creation (since that implies a validate). Fix drm_bo_wait_unfenced error messages and codes. Fix some return codes from libdrm. --- linux-core/drm_bo.c | 28 ++++++++++++---------------- 1 file changed, 12 insertions(+), 16 deletions(-) (limited to 'linux-core/drm_bo.c') diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index 17d6fbc0..b08700a3 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -1024,30 +1024,23 @@ static int drm_bo_wait_unfenced(drm_buffer_object_t * bo, int no_wait, int eagain_if_wait) { int ret = (bo->priv_flags & _DRM_BO_FLAG_UNFENCED); - unsigned long _end = jiffies + 3 * DRM_HZ; if (ret && no_wait) return -EBUSY; else if (!ret) return 0; - do { - mutex_unlock(&bo->mutex); - DRM_WAIT_ON(ret, bo->event_queue, 3 * DRM_HZ, - !drm_bo_check_unfenced(bo)); - mutex_lock(&bo->mutex); - if (ret == -EINTR) - return -EAGAIN; - if (ret) { - DRM_ERROR - ("Error waiting for buffer to become fenced\n"); - return ret; - } - ret = (bo->priv_flags & _DRM_BO_FLAG_UNFENCED); - } while (ret && !time_after_eq(jiffies, _end)); + ret = 0; + mutex_unlock(&bo->mutex); + DRM_WAIT_ON(ret, bo->event_queue, 3 * DRM_HZ, + !drm_bo_check_unfenced(bo)); + mutex_lock(&bo->mutex); + if (ret == -EINTR) + return -EAGAIN; + ret = (bo->priv_flags & _DRM_BO_FLAG_UNFENCED); if (ret) { DRM_ERROR("Timeout waiting for buffer to become fenced\n"); - return ret; + return -EBUSY; } if (eagain_if_wait) return -EAGAIN; @@ -1669,6 +1662,9 @@ int drm_bo_ioctl(DRM_IOCTL_ARGS) rep.ret = 0; switch (req->op) { case drm_bo_create: + rep.ret = drm_bo_lock_test(dev, filp); + if (rep.ret) + break; rep.ret = drm_buffer_object_create(priv, req->size, req->type, -- cgit v1.2.3 From e91ceff6c98661bfae5db008e024b71a8a0f5129 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Tue, 17 Apr 2007 08:46:45 +0200 Subject: Add a code comment. --- linux-core/drm_bo.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'linux-core/drm_bo.c') diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index b08700a3..4ecfb79c 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -1715,6 +1715,13 @@ int drm_bo_ioctl(DRM_IOCTL_ARGS) drm_buffer_type, &uo); if (rep.ret) break; + + /* + * Note: The following code is only to + * fill in the rep argument. drm_lookup_user_object ups the + * refcount which is decreased again when we're done with the bo. + */ + mutex_lock(&dev->struct_mutex); uo = drm_lookup_user_object(priv, req->handle); entry = -- cgit v1.2.3 From 5432cc4abf672ed3adb10fd5d61a6a5716089a98 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Tue, 17 Apr 2007 10:53:19 +0200 Subject: Fix buffer object reference problems. (Reported by Dave Airlie). --- linux-core/drm_bo.c | 17 +---------------- 1 file changed, 1 insertion(+), 16 deletions(-) (limited to 'linux-core/drm_bo.c') diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index 4ecfb79c..88adfc98 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -1716,22 +1716,7 @@ int drm_bo_ioctl(DRM_IOCTL_ARGS) if (rep.ret) break; - /* - * Note: The following code is only to - * fill in the rep argument. drm_lookup_user_object ups the - * refcount which is decreased again when we're done with the bo. - */ - - mutex_lock(&dev->struct_mutex); - uo = drm_lookup_user_object(priv, req->handle); - entry = - drm_user_object_entry(uo, drm_buffer_object_t, - base); - atomic_dec(&entry->usage); - mutex_unlock(&dev->struct_mutex); - mutex_lock(&entry->mutex); - drm_bo_fill_rep_arg(entry, &rep); - mutex_unlock(&entry->mutex); + rep.ret = drm_bo_handle_info(priv, req->handle, &rep); break; case drm_bo_unreference: rep.ret = drm_user_object_unref(priv, req->handle, -- cgit v1.2.3 From 5a96d59ce9d9ad5816e2d0e195afa9902445f594 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Tue, 17 Apr 2007 14:15:37 +0200 Subject: Don't always free up memory space when we unpin buffers. --- linux-core/drm_bo.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'linux-core/drm_bo.c') diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index 88adfc98..450e448c 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -1399,7 +1399,10 @@ static int drm_buffer_object_validate(drm_buffer_object_t * bo, } else if (bo->pinned_node != NULL) { mutex_lock(&dev->struct_mutex); - drm_mm_put_block(bo->pinned_node); + + if (bo->pinned_node != bo->mem.mm_node) + drm_mm_put_block(bo->pinned_node); + list_del_init(&bo->pinned_lru); bo->pinned_node = NULL; mutex_unlock(&dev->struct_mutex); -- cgit v1.2.3 From 3c384a9ad5f964709a237cfe035ea5d6df2da5fa Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Wed, 11 Apr 2007 12:51:52 -0700 Subject: Add new buffer object type for kernel allocations that don't initially have a user mapping. (cherry picked from commit 2e21779992bd5026d8ec4dea52466377dbe5a0ed) --- linux-core/drm_bo.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'linux-core/drm_bo.c') diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index 450e448c..9501ba6e 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -89,6 +89,9 @@ static int drm_bo_vm_pre_move(drm_buffer_object_t * bo, int old_is_pci) #ifdef DRM_ODD_MM_COMPAT int ret; + if (!bo->map_list.map) + return 0; + ret = drm_bo_lock_kmm(bo); if (ret) return ret; @@ -96,6 +99,9 @@ static int drm_bo_vm_pre_move(drm_buffer_object_t * bo, int old_is_pci) if (old_is_pci) drm_bo_finish_unmap(bo); #else + if (!bo->map_list.map) + return 0; + drm_bo_unmap_virtual(bo); #endif return 0; @@ -106,6 +112,9 @@ static void drm_bo_vm_post_move(drm_buffer_object_t * bo) #ifdef DRM_ODD_MM_COMPAT int ret; + if (!bo->map_list.map) + return; + ret = drm_bo_remap_bound(bo); if (ret) { DRM_ERROR("Failed to remap a bound buffer object.\n" @@ -131,6 +140,11 @@ static int drm_bo_add_ttm(drm_buffer_object_t * bo) if (!bo->ttm) ret = -ENOMEM; break; + case drm_bo_type_kernel: + bo->ttm = drm_ttm_init(dev, bo->mem.num_pages << PAGE_SHIFT); + if (!bo->ttm) + ret = -ENOMEM; + break; case drm_bo_type_user: case drm_bo_type_fake: break; -- cgit v1.2.3 From 71d44cda52f239b543cb1fad93ef35adc3093d38 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Thu, 26 Apr 2007 16:09:24 +1000 Subject: drm/ttm: allow drm_buffer_object_create to be used in-kernel --- linux-core/drm_bo.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'linux-core/drm_bo.c') diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index 9501ba6e..1c7013b3 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -1540,7 +1540,7 @@ static int drm_bo_handle_wait(drm_file_t * priv, uint32_t handle, return ret; } -int drm_buffer_object_create(drm_file_t * priv, +int drm_buffer_object_create(drm_device_t *dev, unsigned long size, drm_bo_type_t type, uint32_t mask, @@ -1549,7 +1549,6 @@ int drm_buffer_object_create(drm_file_t * priv, unsigned long buffer_start, drm_buffer_object_t ** buf_obj) { - drm_device_t *dev = priv->head->dev; drm_buffer_manager_t *bm = &dev->bm; drm_buffer_object_t *bo; int ret = 0; @@ -1683,7 +1682,8 @@ int drm_bo_ioctl(DRM_IOCTL_ARGS) if (rep.ret) break; rep.ret = - drm_buffer_object_create(priv, req->size, + drm_buffer_object_create(priv->head->dev, + req->size, req->type, req->mask, req->hint, @@ -2306,6 +2306,9 @@ void drm_bo_unmap_virtual(drm_buffer_object_t * bo) loff_t offset = ((loff_t) bo->map_list.hash.key) << PAGE_SHIFT; loff_t holelen = ((loff_t) bo->mem.num_pages) << PAGE_SHIFT; + if (!dev->dev_mapping) + return; + unmap_mapping_range(dev->dev_mapping, offset, holelen, 1); } -- cgit v1.2.3 From 3fdef0dc2000308b16907b95f637c60acde80a74 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Sun, 6 May 2007 11:17:30 +1000 Subject: drm/ttm: cleanup mm_ioctl ioctls to be separate ioctls. This is the first bunch of ioctls --- linux-core/drm_bo.c | 160 +++++++++++++++++++++++++++++++++++----------------- 1 file changed, 108 insertions(+), 52 deletions(-) (limited to 'linux-core/drm_bo.c') diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index 1c7013b3..f78a6f95 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -2158,11 +2158,48 @@ EXPORT_SYMBOL(drm_bo_driver_init); int drm_mm_init_ioctl(DRM_IOCTL_ARGS) { DRM_DEVICE; + struct drm_mm_init_arg arg; + drm_buffer_manager_t *bm = &dev->bm; + drm_bo_driver_t *driver = dev->driver->bo_driver; + int ret; - int ret = 0; - drm_mm_init_arg_t arg; + if (!driver) { + DRM_ERROR("Buffer objects are not supported by this driver\n"); + return -EINVAL; + } + + DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg)); + ret = -EINVAL; + mutex_lock(&dev->bm.init_mutex); + mutex_lock(&dev->struct_mutex); + if (!bm->initialized) { + DRM_ERROR("DRM memory manager was not initialized.\n"); + goto out; + } + if (arg.mem_type == 0) { + DRM_ERROR("System memory buffers already initialized.\n"); + goto out; + } + ret = drm_bo_init_mm(dev, arg.mem_type, + arg.p_offset, arg.p_size); + +out: + mutex_unlock(&dev->struct_mutex); + mutex_unlock(&dev->bm.init_mutex); + if (ret) + return ret; + + DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg)); + return 0; +} + +int drm_mm_takedown_ioctl(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + struct drm_mm_type_arg arg; drm_buffer_manager_t *bm = &dev->bm; drm_bo_driver_t *driver = dev->driver->bo_driver; + int ret; if (!driver) { DRM_ERROR("Buffer objects are not supported by this driver\n"); @@ -2171,59 +2208,78 @@ int drm_mm_init_ioctl(DRM_IOCTL_ARGS) DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg)); - switch (arg.req.op) { - case mm_init: - ret = -EINVAL; - mutex_lock(&dev->bm.init_mutex); - mutex_lock(&dev->struct_mutex); - if (!bm->initialized) { - DRM_ERROR("DRM memory manager was not initialized.\n"); - break; - } - if (arg.req.mem_type == 0) { - DRM_ERROR - ("System memory buffers already initialized.\n"); - break; - } - ret = drm_bo_init_mm(dev, arg.req.mem_type, - arg.req.p_offset, arg.req.p_size); - break; - case mm_takedown: - LOCK_TEST_WITH_RETURN(dev, filp); - mutex_lock(&dev->bm.init_mutex); - mutex_lock(&dev->struct_mutex); - ret = -EINVAL; - if (!bm->initialized) { - DRM_ERROR("DRM memory manager was not initialized\n"); - break; - } - if (arg.req.mem_type == 0) { - DRM_ERROR("No takedown for System memory buffers.\n"); - break; - } - ret = 0; - if (drm_bo_clean_mm(dev, arg.req.mem_type)) { - DRM_ERROR("Memory manager type %d not clean. " - "Delaying takedown\n", arg.req.mem_type); - } - break; - case mm_lock: - LOCK_TEST_WITH_RETURN(dev, filp); - mutex_lock(&dev->bm.init_mutex); - mutex_lock(&dev->struct_mutex); - ret = drm_bo_lock_mm(dev, arg.req.mem_type); - break; - case mm_unlock: - LOCK_TEST_WITH_RETURN(dev, filp); - mutex_lock(&dev->bm.init_mutex); - mutex_lock(&dev->struct_mutex); - ret = 0; - break; - default: - DRM_ERROR("Function not implemented yet\n"); + LOCK_TEST_WITH_RETURN(dev, filp); + mutex_lock(&dev->bm.init_mutex); + mutex_lock(&dev->struct_mutex); + ret = -EINVAL; + if (!bm->initialized) { + DRM_ERROR("DRM memory manager was not initialized\n"); + goto out; + } + if (arg.mem_type == 0) { + DRM_ERROR("No takedown for System memory buffers.\n"); + goto out; + } + ret = 0; + if (drm_bo_clean_mm(dev, arg.mem_type)) { + DRM_ERROR("Memory manager type %d not clean. " + "Delaying takedown\n", arg.mem_type); + } +out: + mutex_unlock(&dev->struct_mutex); + mutex_unlock(&dev->bm.init_mutex); + if (ret) + return ret; + + DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg)); + return 0; +} + +int drm_mm_lock_ioctl(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + struct drm_mm_type_arg arg; + drm_bo_driver_t *driver = dev->driver->bo_driver; + int ret; + + if (!driver) { + DRM_ERROR("Buffer objects are not supported by this driver\n"); return -EINVAL; } + DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg)); + + LOCK_TEST_WITH_RETURN(dev, filp); + mutex_lock(&dev->bm.init_mutex); + mutex_lock(&dev->struct_mutex); + ret = drm_bo_lock_mm(dev, arg.mem_type); + mutex_unlock(&dev->struct_mutex); + mutex_unlock(&dev->bm.init_mutex); + if (ret) + return ret; + + DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg)); + return 0; +} + +int drm_mm_unlock_ioctl(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + struct drm_mm_type_arg arg; + drm_bo_driver_t *driver = dev->driver->bo_driver; + int ret; + + if (!driver) { + DRM_ERROR("Buffer objects are not supported by this driver\n"); + return -EINVAL; + } + + DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg)); + LOCK_TEST_WITH_RETURN(dev, filp); + mutex_lock(&dev->bm.init_mutex); + mutex_lock(&dev->struct_mutex); + ret = 0; + mutex_unlock(&dev->struct_mutex); mutex_unlock(&dev->bm.init_mutex); if (ret) -- cgit v1.2.3 From 58b2ed78329305d5760c6df55175f958477f89ae Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Sat, 26 May 2007 03:48:08 +1000 Subject: Revert "drm/ttm: cleanup mm_ioctl ioctls to be separate ioctls." This reverts commit 3fdef0dc2000308b16907b95f637c60acde80a74. ditto not on master yet --- linux-core/drm_bo.c | 160 +++++++++++++++++----------------------------------- 1 file changed, 52 insertions(+), 108 deletions(-) (limited to 'linux-core/drm_bo.c') diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index f78a6f95..1c7013b3 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -2158,89 +2158,11 @@ EXPORT_SYMBOL(drm_bo_driver_init); int drm_mm_init_ioctl(DRM_IOCTL_ARGS) { DRM_DEVICE; - struct drm_mm_init_arg arg; - drm_buffer_manager_t *bm = &dev->bm; - drm_bo_driver_t *driver = dev->driver->bo_driver; - int ret; - - if (!driver) { - DRM_ERROR("Buffer objects are not supported by this driver\n"); - return -EINVAL; - } - DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg)); - ret = -EINVAL; - mutex_lock(&dev->bm.init_mutex); - mutex_lock(&dev->struct_mutex); - if (!bm->initialized) { - DRM_ERROR("DRM memory manager was not initialized.\n"); - goto out; - } - if (arg.mem_type == 0) { - DRM_ERROR("System memory buffers already initialized.\n"); - goto out; - } - ret = drm_bo_init_mm(dev, arg.mem_type, - arg.p_offset, arg.p_size); - -out: - mutex_unlock(&dev->struct_mutex); - mutex_unlock(&dev->bm.init_mutex); - if (ret) - return ret; - - DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg)); - return 0; -} - -int drm_mm_takedown_ioctl(DRM_IOCTL_ARGS) -{ - DRM_DEVICE; - struct drm_mm_type_arg arg; + int ret = 0; + drm_mm_init_arg_t arg; drm_buffer_manager_t *bm = &dev->bm; drm_bo_driver_t *driver = dev->driver->bo_driver; - int ret; - - if (!driver) { - DRM_ERROR("Buffer objects are not supported by this driver\n"); - return -EINVAL; - } - - DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg)); - - LOCK_TEST_WITH_RETURN(dev, filp); - mutex_lock(&dev->bm.init_mutex); - mutex_lock(&dev->struct_mutex); - ret = -EINVAL; - if (!bm->initialized) { - DRM_ERROR("DRM memory manager was not initialized\n"); - goto out; - } - if (arg.mem_type == 0) { - DRM_ERROR("No takedown for System memory buffers.\n"); - goto out; - } - ret = 0; - if (drm_bo_clean_mm(dev, arg.mem_type)) { - DRM_ERROR("Memory manager type %d not clean. " - "Delaying takedown\n", arg.mem_type); - } -out: - mutex_unlock(&dev->struct_mutex); - mutex_unlock(&dev->bm.init_mutex); - if (ret) - return ret; - - DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg)); - return 0; -} - -int drm_mm_lock_ioctl(DRM_IOCTL_ARGS) -{ - DRM_DEVICE; - struct drm_mm_type_arg arg; - drm_bo_driver_t *driver = dev->driver->bo_driver; - int ret; if (!driver) { DRM_ERROR("Buffer objects are not supported by this driver\n"); @@ -2249,37 +2171,59 @@ int drm_mm_lock_ioctl(DRM_IOCTL_ARGS) DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg)); - LOCK_TEST_WITH_RETURN(dev, filp); - mutex_lock(&dev->bm.init_mutex); - mutex_lock(&dev->struct_mutex); - ret = drm_bo_lock_mm(dev, arg.mem_type); - mutex_unlock(&dev->struct_mutex); - mutex_unlock(&dev->bm.init_mutex); - if (ret) - return ret; - - DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg)); - return 0; -} - -int drm_mm_unlock_ioctl(DRM_IOCTL_ARGS) -{ - DRM_DEVICE; - struct drm_mm_type_arg arg; - drm_bo_driver_t *driver = dev->driver->bo_driver; - int ret; - - if (!driver) { - DRM_ERROR("Buffer objects are not supported by this driver\n"); + switch (arg.req.op) { + case mm_init: + ret = -EINVAL; + mutex_lock(&dev->bm.init_mutex); + mutex_lock(&dev->struct_mutex); + if (!bm->initialized) { + DRM_ERROR("DRM memory manager was not initialized.\n"); + break; + } + if (arg.req.mem_type == 0) { + DRM_ERROR + ("System memory buffers already initialized.\n"); + break; + } + ret = drm_bo_init_mm(dev, arg.req.mem_type, + arg.req.p_offset, arg.req.p_size); + break; + case mm_takedown: + LOCK_TEST_WITH_RETURN(dev, filp); + mutex_lock(&dev->bm.init_mutex); + mutex_lock(&dev->struct_mutex); + ret = -EINVAL; + if (!bm->initialized) { + DRM_ERROR("DRM memory manager was not initialized\n"); + break; + } + if (arg.req.mem_type == 0) { + DRM_ERROR("No takedown for System memory buffers.\n"); + break; + } + ret = 0; + if (drm_bo_clean_mm(dev, arg.req.mem_type)) { + DRM_ERROR("Memory manager type %d not clean. " + "Delaying takedown\n", arg.req.mem_type); + } + break; + case mm_lock: + LOCK_TEST_WITH_RETURN(dev, filp); + mutex_lock(&dev->bm.init_mutex); + mutex_lock(&dev->struct_mutex); + ret = drm_bo_lock_mm(dev, arg.req.mem_type); + break; + case mm_unlock: + LOCK_TEST_WITH_RETURN(dev, filp); + mutex_lock(&dev->bm.init_mutex); + mutex_lock(&dev->struct_mutex); + ret = 0; + break; + default: + DRM_ERROR("Function not implemented yet\n"); return -EINVAL; } - DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg)); - LOCK_TEST_WITH_RETURN(dev, filp); - mutex_lock(&dev->bm.init_mutex); - mutex_lock(&dev->struct_mutex); - ret = 0; - mutex_unlock(&dev->struct_mutex); mutex_unlock(&dev->bm.init_mutex); if (ret) -- cgit v1.2.3