Merge tag 'mmc-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Add support to enable irq wake for slot gpio
   - Remove MMC_CAP2_HC_ERASE_SZ and make it the default behaviour
   - Improve R1 response error checks for stop commands
   - Cleanup and clarify some MMC specific code
   - Keep card runtime resumed while adding SDIO function devices
   - Use device_property_read instead of of_property_read in mmc_of_parse()
   - Move boot partition locking into a driver op to enable proper I/O scheduling
   - Move multi/single-ioctl() to use block layer to enable proper I/O scheduling
   - Delete bounce buffer Kconfig option
   - Improve the eMMC HW reset support provided via the eMMC pwrseq
   - Add host API to manage SDIO IRQs from a workqueue

  MMC host:
   - dw_mmc: Drop support for multiple slots
   - dw_mmc: Use device_property_read instead of of_property_read
   - dw_mmc-rockchip: Optional improved tuning to greatly decrease tuning time
   - dw_mmc: Prevent rpm suspend for SDIO IRQs instead of always for SDIO cards
   - dw_mmc: Convert to use MMC_CAP2_SDIO_IRQ_NOTHREAD for SDIO IRQs
   - omap_hsmmc: Convert to mmc regulator APIs to consolidate code
   - omap_hsmmc: Deprecate "vmmc_aux" in DT and use "vqmmc" instead
   - tmio: make sure SDIO gets reinitialized after resume
   - sdhi: add CMD23 support to R-Car Gen2 & Gen3
   - tmio: add CMD23 support
   - sdhi/tmio: Refactor code and rename files to simplify Kconfig options
   - sdhci-pci: Enable card detect wake for Intel BYT-related SD controllers
   - sdhci-pci: Add support for Intel CNP
   - sdhci-esdhc-imx: Remove ENGcm07207 workaround - allow multi block transfers
   - sdhci-esdhc-imx: Allow all supported prescaler values
   - sdhci-esdhc-imx: Fix DAT line software reset
   - sdhci-esdhc: Add SDHCI_QUIRK_32BIT_DMA_ADDR
   - atmel-mci: Drop AVR32 support"

* tag 'mmc-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (86 commits)
  mmc: dw_mmc: remove the unnecessary slot variable
  mmc: dw_mmc: use the 'slot' instead of 'cur_slot'
  mmc: dw_mmc: remove the 'id' arguments about functions relevant to slot
  mmc: dw_mmc: change the array of slots
  mmc: dw_mmc: remove the loop about finding slots
  mmc: dw_mmc: deprecated the "num-slots" property
  mmc: dw_mmc-rockchip: parse rockchip, desired-num-phases from DT
  dt-bindings: rockchip-dw-mshc: add optional rockchip, desired-num-phases
  mmc: renesas-sdhi: improve checkpatch cleanness
  mmc: tmio: improve checkpatch cleanness
  mmc: sdhci-pci: Enable card detect wake for Intel BYT-related SD controllers
  mmc: slot-gpio: Add support to enable irq wake on cd_irq
  mmc: core: Remove MMC_CAP2_HC_ERASE_SZ
  mmc: core: for data errors, take response of stop cmd into account
  mmc: core: check also R1 response for stop commands
  mmc: core: Clarify code for sending CSD
  mmc: core: Drop mmc_all_send_cid() and use mmc_send_cxd_native() instead
  mmc: core: Re-factor code for sending CID
  mmc: core: Remove redundant code in mmc_send_cid()
  mmc: core: Make mmc_can_reset() static
  ...

1 files changed, 31 insertions, 16 deletions

diff --git a/drivers/mmc/core/queue.h b/drivers/mmc/core/queue.h
index 871796c3f406..361b46408e0f 100644
--- a/drivers/mmc/core/queue.h
+++ b/drivers/mmc/core/queue.h
@@ -3,19 +3,25 @@
 
 #include <linux/types.h>
 #include <linux/blkdev.h>
+#include <linux/blk-mq.h>
 #include <linux/mmc/core.h>
 #include <linux/mmc/host.h>
 
-static inline bool mmc_req_is_special(struct request *req)
+static inline struct mmc_queue_req *req_to_mmc_queue_req(struct request *rq)
 {
-	return req &&
-		(req_op(req) == REQ_OP_FLUSH ||
-		 req_op(req) == REQ_OP_DISCARD ||
-		 req_op(req) == REQ_OP_SECURE_ERASE);
+	return blk_mq_rq_to_pdu(rq);
+}
+
+struct mmc_queue_req;
+
+static inline struct request *mmc_queue_req_to_req(struct mmc_queue_req *mqr)
+{
+	return blk_mq_rq_from_pdu(mqr);
 }
 
 struct task_struct;
 struct mmc_blk_data;
+struct mmc_blk_ioc_data;
 
 struct mmc_blk_request {
 	struct mmc_request	mrq;
@@ -26,15 +32,27 @@ struct mmc_blk_request {
 	int			retune_retry_done;
 };
 
+/**
+ * enum mmc_drv_op - enumerates the operations in the mmc_queue_req
+ * @MMC_DRV_OP_IOCTL: ioctl operation
+ * @MMC_DRV_OP_BOOT_WP: write protect boot partitions
+ */
+enum mmc_drv_op {
+	MMC_DRV_OP_IOCTL,
+	MMC_DRV_OP_BOOT_WP,
+};
+
 struct mmc_queue_req {
-	struct request		*req;
 	struct mmc_blk_request	brq;
 	struct scatterlist	*sg;
 	char			*bounce_buf;
 	struct scatterlist	*bounce_sg;
 	unsigned int		bounce_sg_len;
 	struct mmc_async_req	areq;
-	int			task_id;
+	enum mmc_drv_op		drv_op;
+	int			drv_op_result;
+	struct mmc_blk_ioc_data	**idata;
+	unsigned int		ioc_count;
 };
 
 struct mmc_queue {
@@ -45,14 +63,15 @@ struct mmc_queue {
 	bool			asleep;
 	struct mmc_blk_data	*blkdata;
 	struct request_queue	*queue;
-	struct mmc_queue_req	*mqrq;
-	int			qdepth;
+	/*
+	 * FIXME: this counter is not a very reliable way of keeping
+	 * track of how many requests that are ongoing. Switch to just
+	 * letting the block core keep track of requests and per-request
+	 * associated mmc_queue_req data.
+	 */
 	int			qcnt;
-	unsigned long		qslots;
 };
 
-extern int mmc_queue_alloc_shared_queue(struct mmc_card *card);
-extern void mmc_queue_free_shared_queue(struct mmc_card *card);
 extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *,
 			  const char *);
 extern void mmc_cleanup_queue(struct mmc_queue *);
@@ -66,8 +85,4 @@ extern void mmc_queue_bounce_post(struct mmc_queue_req *);
 
 extern int mmc_access_rpmb(struct mmc_queue *);
 
-extern struct mmc_queue_req *mmc_queue_req_find(struct mmc_queue *,
-						struct request *);
-extern void mmc_queue_req_free(struct mmc_queue *, struct mmc_queue_req *);
-
 #endif