Merge remote-tracking branch 'airlied/drm-fixes' into drm-intel-next-queued

Back-merge from drm-fixes into drm-intel-next to sort out two things:

- interlaced support: -fixes contains a bugfix to correctly clear
  interlaced configuration bits in case the bios sets up an interlaced
  mode and we want to set up the progressive mode (current kernels
  don't support interlaced). The actual feature work to support
  interlaced depends upon (and conflicts with) this bugfix.

- forcewake voodoo to workaround missed IRQ issues: -fixes only enabled
  this for ivybridge, but some recent bug reports indicate that we
  need this on Sandybridge, too. But in a slightly different flavour
  and with other fixes and reworks on top. Additionally there are some
  forcewake cleanup patches heading to -next that would conflict with
  currrent -fixes.

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 87 insertions, 17 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 94acd8172b5b..6c6a1f008065 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -111,10 +111,14 @@ struct request {
 	 * Three pointers are available for the IO schedulers, if they need
 	 * more they have to dynamically allocate it.  Flush requests are
 	 * never put on the IO scheduler. So let the flush fields share
-	 * space with the three elevator_private pointers.
+	 * space with the elevator data.
 	 */
 	union {
-		void *elevator_private[3];
+		struct {
+			struct io_cq		*icq;
+			void			*priv[2];
+		} elv;
+
 		struct {
 			unsigned int		seq;
 			struct list_head	list;
@@ -311,6 +315,12 @@ struct request_queue {
 	unsigned long		queue_flags;
 
 	/*
+	 * ida allocated id for this queue.  Used to index queues from
+	 * ioctx.
+	 */
+	int			id;
+
+	/*
 	 * queue needs bounce pages for pages above this limit
 	 */
 	gfp_t			bounce_gfp;
@@ -351,6 +361,8 @@ struct request_queue {
 	struct timer_list	timeout;
 	struct list_head	timeout_list;
 
+	struct list_head	icq_list;
+
 	struct queue_limits	limits;
 
 	/*
@@ -387,6 +399,9 @@ struct request_queue {
 	/* Throttle data */
 	struct throtl_data *td;
 #endif
+#ifdef CONFIG_LOCKDEP
+	int			ioc_release_depth;
+#endif
 };
 
 #define QUEUE_FLAG_QUEUED	1	/* uses generic tag queueing */
@@ -481,6 +496,7 @@ static inline void queue_flag_clear(unsigned int flag, struct request_queue *q)
 
 #define blk_queue_tagged(q)	test_bit(QUEUE_FLAG_QUEUED, &(q)->queue_flags)
 #define blk_queue_stopped(q)	test_bit(QUEUE_FLAG_STOPPED, &(q)->queue_flags)
+#define blk_queue_dead(q)	test_bit(QUEUE_FLAG_DEAD, &(q)->queue_flags)
 #define blk_queue_nomerges(q)	test_bit(QUEUE_FLAG_NOMERGES, &(q)->queue_flags)
 #define blk_queue_noxmerges(q)	\
 	test_bit(QUEUE_FLAG_NOXMERGES, &(q)->queue_flags)
@@ -660,7 +676,6 @@ extern void __blk_put_request(struct request_queue *, struct request *);
 extern struct request *blk_get_request(struct request_queue *, int, gfp_t);
 extern struct request *blk_make_request(struct request_queue *, struct bio *,
 					gfp_t);
-extern void blk_insert_request(struct request_queue *, struct request *, int, void *);
 extern void blk_requeue_request(struct request_queue *, struct request *);
 extern void blk_add_request_payload(struct request *rq, struct page *page,
 		unsigned int len);
@@ -675,6 +690,9 @@ extern int blk_insert_cloned_request(struct request_queue *q,
 				     struct request *rq);
 extern void blk_delay_queue(struct request_queue *, unsigned long);
 extern void blk_recount_segments(struct request_queue *, struct bio *);
+extern int scsi_verify_blk_ioctl(struct block_device *, unsigned int);
+extern int scsi_cmd_blk_ioctl(struct block_device *, fmode_t,
+			      unsigned int, void __user *);
 extern int scsi_cmd_ioctl(struct request_queue *, struct gendisk *, fmode_t,
 			  unsigned int, void __user *);
 extern int sg_scsi_ioctl(struct request_queue *, struct gendisk *, fmode_t,
@@ -826,6 +844,7 @@ extern void blk_queue_io_min(struct request_queue *q, unsigned int min);
 extern void blk_limits_io_opt(struct queue_limits *limits, unsigned int opt);
 extern void blk_queue_io_opt(struct request_queue *q, unsigned int opt);
 extern void blk_set_default_limits(struct queue_limits *lim);
+extern void blk_set_stacking_limits(struct queue_limits *lim);
 extern int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
 			    sector_t offset);
 extern int bdev_stack_limits(struct queue_limits *t, struct block_device *bdev,
@@ -856,7 +875,7 @@ extern int blk_rq_map_sg(struct request_queue *, struct request *, struct scatte
 extern void blk_dump_rq_flags(struct request *, char *);
 extern long nr_blockdev_pages(void);
 
-int blk_get_queue(struct request_queue *);
+bool __must_check blk_get_queue(struct request_queue *);
 struct request_queue *blk_alloc_queue(gfp_t);
 struct request_queue *blk_alloc_queue_node(gfp_t, int);
 extern void blk_put_queue(struct request_queue *);
@@ -1279,19 +1298,70 @@ queue_max_integrity_segments(struct request_queue *q)
 
 #else /* CONFIG_BLK_DEV_INTEGRITY */
 
-#define blk_integrity_rq(rq)			(0)
-#define blk_rq_count_integrity_sg(a, b)		(0)
-#define blk_rq_map_integrity_sg(a, b, c)	(0)
-#define bdev_get_integrity(a)			(0)
-#define blk_get_integrity(a)			(0)
-#define blk_integrity_compare(a, b)		(0)
-#define blk_integrity_register(a, b)		(0)
-#define blk_integrity_unregister(a)		do { } while (0)
-#define blk_queue_max_integrity_segments(a, b)	do { } while (0)
-#define queue_max_integrity_segments(a)		(0)
-#define blk_integrity_merge_rq(a, b, c)		(0)
-#define blk_integrity_merge_bio(a, b, c)	(0)
-#define blk_integrity_is_initialized(a)		(0)
+struct bio;
+struct block_device;
+struct gendisk;
+struct blk_integrity;
+
+static inline int blk_integrity_rq(struct request *rq)
+{
+	return 0;
+}
+static inline int blk_rq_count_integrity_sg(struct request_queue *q,
+					    struct bio *b)
+{
+	return 0;
+}
+static inline int blk_rq_map_integrity_sg(struct request_queue *q,
+					  struct bio *b,
+					  struct scatterlist *s)
+{
+	return 0;
+}
+static inline struct blk_integrity *bdev_get_integrity(struct block_device *b)
+{
+	return 0;
+}
+static inline struct blk_integrity *blk_get_integrity(struct gendisk *disk)
+{
+	return NULL;
+}
+static inline int blk_integrity_compare(struct gendisk *a, struct gendisk *b)
+{
+	return 0;
+}
+static inline int blk_integrity_register(struct gendisk *d,
+					 struct blk_integrity *b)
+{
+	return 0;
+}
+static inline void blk_integrity_unregister(struct gendisk *d)
+{
+}
+static inline void blk_queue_max_integrity_segments(struct request_queue *q,
+						    unsigned int segs)
+{
+}
+static inline unsigned short queue_max_integrity_segments(struct request_queue *q)
+{
+	return 0;
+}
+static inline int blk_integrity_merge_rq(struct request_queue *rq,
+					 struct request *r1,
+					 struct request *r2)
+{
+	return 0;
+}
+static inline int blk_integrity_merge_bio(struct request_queue *rq,
+					  struct request *r,
+					  struct bio *b)
+{
+	return 0;
+}
+static inline bool blk_integrity_is_initialized(struct gendisk *g)
+{
+	return 0;
+}
 
 #endif /* CONFIG_BLK_DEV_INTEGRITY */