From ecff665f5e3f1c6909353e00b9420e45ae23d995 Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Thu, 27 Jun 2013 13:48:17 +0200 Subject: drm/ttm: make ttm reservation calls behave like reservation calls This commit converts the source of the val_seq counter to the ww_mutex api. The reservation objects are converted later, because there is still a lockdep splat in nouveau that has to resolved first. Signed-off-by: Maarten Lankhorst Reviewed-by: Jerome Glisse Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_resource.c') diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index bc784254e78e..ced79465a095 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -990,9 +990,11 @@ void vmw_resource_unreserve(struct vmw_resource *res, * @val_buf: On successful return contains data about the * reserved and validated backup buffer. */ -int vmw_resource_check_buffer(struct vmw_resource *res, - bool interruptible, - struct ttm_validate_buffer *val_buf) +static int +vmw_resource_check_buffer(struct vmw_resource *res, + struct ww_acquire_ctx *ticket, + bool interruptible, + struct ttm_validate_buffer *val_buf) { struct list_head val_list; bool backup_dirty = false; @@ -1007,7 +1009,7 @@ int vmw_resource_check_buffer(struct vmw_resource *res, INIT_LIST_HEAD(&val_list); val_buf->bo = ttm_bo_reference(&res->backup->base); list_add_tail(&val_buf->head, &val_list); - ret = ttm_eu_reserve_buffers(&val_list); + ret = ttm_eu_reserve_buffers(ticket, &val_list); if (unlikely(ret != 0)) goto out_no_reserve; @@ -1025,7 +1027,7 @@ int vmw_resource_check_buffer(struct vmw_resource *res, return 0; out_no_validate: - ttm_eu_backoff_reservation(&val_list); + ttm_eu_backoff_reservation(ticket, &val_list); out_no_reserve: ttm_bo_unref(&val_buf->bo); if (backup_dirty) @@ -1069,7 +1071,9 @@ int vmw_resource_reserve(struct vmw_resource *res, bool no_backup) *. * @val_buf: Backup buffer information. */ -void vmw_resource_backoff_reservation(struct ttm_validate_buffer *val_buf) +static void +vmw_resource_backoff_reservation(struct ww_acquire_ctx *ticket, + struct ttm_validate_buffer *val_buf) { struct list_head val_list; @@ -1078,7 +1082,7 @@ void vmw_resource_backoff_reservation(struct ttm_validate_buffer *val_buf) INIT_LIST_HEAD(&val_list); list_add_tail(&val_buf->head, &val_list); - ttm_eu_backoff_reservation(&val_list); + ttm_eu_backoff_reservation(ticket, &val_list); ttm_bo_unref(&val_buf->bo); } @@ -1092,12 +1096,13 @@ int vmw_resource_do_evict(struct vmw_resource *res) { struct ttm_validate_buffer val_buf; const struct vmw_res_func *func = res->func; + struct ww_acquire_ctx ticket; int ret; BUG_ON(!func->may_evict); val_buf.bo = NULL; - ret = vmw_resource_check_buffer(res, true, &val_buf); + ret = vmw_resource_check_buffer(res, &ticket, true, &val_buf); if (unlikely(ret != 0)) return ret; @@ -1112,7 +1117,7 @@ int vmw_resource_do_evict(struct vmw_resource *res) res->backup_dirty = true; res->res_dirty = false; out_no_unbind: - vmw_resource_backoff_reservation(&val_buf); + vmw_resource_backoff_reservation(&ticket, &val_buf); return ret; } -- cgit v1.2.3