Hi James,
Can you please merge this patch on top of the query requests patch?
Thanks,
Maya
> Simplify operations with hiding mmio_base.
>
> Signed-off-by: Seungwon Jeon <tgih.jun@xxxxxxxxxxx>
> Tested-by: Maya Erez <merez@xxxxxxxxxxxxxx>
> ---
> drivers/scsi/ufs/ufshcd.c | 105
> +++++++++++++++++++--------------------------
> drivers/scsi/ufs/ufshcd.h | 7 +++-
> 2 files changed, 50 insertions(+), 62 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index f244812..cf7c8e4 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -71,7 +71,7 @@ enum {
> */
> static inline u32 ufshcd_get_ufs_version(struct ufs_hba *hba)
> {
> - return readl(hba->mmio_base + REG_UFS_VERSION);
> + return ufshcd_readl(hba, REG_UFS_VERSION);
> }
>
> /**
> @@ -130,8 +130,7 @@ static inline int ufshcd_get_tm_free_slot(struct
> ufs_hba *hba)
> */
> static inline void ufshcd_utrl_clear(struct ufs_hba *hba, u32 pos)
> {
> - writel(~(1 << pos),
> - (hba->mmio_base + REG_UTP_TRANSFER_REQ_LIST_CLEAR));
> + ufshcd_writel(hba, ~(1 << pos), REG_UTP_TRANSFER_REQ_LIST_CLEAR);
> }
>
> /**
> @@ -165,7 +164,7 @@ static inline int ufshcd_get_lists_status(u32 reg)
> */
> static inline int ufshcd_get_uic_cmd_result(struct ufs_hba *hba)
> {
> - return readl(hba->mmio_base + REG_UIC_COMMAND_ARG_2) &
> + return ufshcd_readl(hba, REG_UIC_COMMAND_ARG_2) &
> MASK_UIC_COMMAND_RESULT;
> }
>
> @@ -238,18 +237,15 @@ ufshcd_config_int_aggr(struct ufs_hba *hba, int
> option)
> {
> switch (option) {
> case INT_AGGR_RESET:
> - writel((INT_AGGR_ENABLE |
> - INT_AGGR_COUNTER_AND_TIMER_RESET),
> - (hba->mmio_base +
> - REG_UTP_TRANSFER_REQ_INT_AGG_CONTROL));
> + ufshcd_writel(hba, INT_AGGR_ENABLE |
> + INT_AGGR_COUNTER_AND_TIMER_RESET,
> + REG_UTP_TRANSFER_REQ_INT_AGG_CONTROL);
> break;
> case INT_AGGR_CONFIG:
> - writel((INT_AGGR_ENABLE |
> - INT_AGGR_PARAM_WRITE |
> - INT_AGGR_COUNTER_THRESHOLD_VALUE |
> - INT_AGGR_TIMEOUT_VALUE),
> - (hba->mmio_base +
> - REG_UTP_TRANSFER_REQ_INT_AGG_CONTROL));
> + ufshcd_writel(hba, INT_AGGR_ENABLE | INT_AGGR_PARAM_WRITE |
> + INT_AGGR_COUNTER_THRESHOLD_VALUE |
> + INT_AGGR_TIMEOUT_VALUE,
> + REG_UTP_TRANSFER_REQ_INT_AGG_CONTROL);
> break;
> }
> }
> @@ -262,12 +258,10 @@ ufshcd_config_int_aggr(struct ufs_hba *hba, int
> option)
> */
> static void ufshcd_enable_run_stop_reg(struct ufs_hba *hba)
> {
> - writel(UTP_TASK_REQ_LIST_RUN_STOP_BIT,
> - (hba->mmio_base +
> - REG_UTP_TASK_REQ_LIST_RUN_STOP));
> - writel(UTP_TRANSFER_REQ_LIST_RUN_STOP_BIT,
> - (hba->mmio_base +
> - REG_UTP_TRANSFER_REQ_LIST_RUN_STOP));
> + ufshcd_writel(hba, UTP_TASK_REQ_LIST_RUN_STOP_BIT,
> + REG_UTP_TASK_REQ_LIST_RUN_STOP);
> + ufshcd_writel(hba, UTP_TRANSFER_REQ_LIST_RUN_STOP_BIT,
> + REG_UTP_TRANSFER_REQ_LIST_RUN_STOP);
> }
>
> /**
> @@ -276,7 +270,7 @@ static void ufshcd_enable_run_stop_reg(struct ufs_hba
> *hba)
> */
> static inline void ufshcd_hba_start(struct ufs_hba *hba)
> {
> - writel(CONTROLLER_ENABLE , (hba->mmio_base + REG_CONTROLLER_ENABLE));
> + ufshcd_writel(hba, CONTROLLER_ENABLE, REG_CONTROLLER_ENABLE);
> }
>
> /**
> @@ -287,7 +281,7 @@ static inline void ufshcd_hba_start(struct ufs_hba
> *hba)
> */
> static inline int ufshcd_is_hba_active(struct ufs_hba *hba)
> {
> - return (readl(hba->mmio_base + REG_CONTROLLER_ENABLE) & 0x1) ? 0 : 1;
> + return (ufshcd_readl(hba, REG_CONTROLLER_ENABLE) & 0x1) ? 0 : 1;
> }
>
> /**
> @@ -299,8 +293,7 @@ static inline
> void ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag)
> {
> __set_bit(task_tag, &hba->outstanding_reqs);
> - writel((1 << task_tag),
> - (hba->mmio_base + REG_UTP_TRANSFER_REQ_DOOR_BELL));
> + ufshcd_writel(hba, 1 << task_tag, REG_UTP_TRANSFER_REQ_DOOR_BELL);
> }
>
> /**
> @@ -381,8 +374,7 @@ void ufshcd_copy_query_response(struct ufs_hba *hba,
> struct ufshcd_lrb *lrbp)
> */
> static inline void ufshcd_hba_capabilities(struct ufs_hba *hba)
> {
> - hba->capabilities =
> - readl(hba->mmio_base + REG_CONTROLLER_CAPABILITIES);
> + hba->capabilities = ufshcd_readl(hba, REG_CONTROLLER_CAPABILITIES);
>
> /* nutrs and nutmrs are 0 based values */
> hba->nutrs = (hba->capabilities & MASK_TRANSFER_REQUESTS_SLOTS) + 1;
> @@ -399,16 +391,13 @@ static inline void
> ufshcd_send_uic_command(struct ufs_hba *hba, struct uic_command
> *uic_cmnd)
> {
> /* Write Args */
> - writel(uic_cmnd->argument1,
> - (hba->mmio_base + REG_UIC_COMMAND_ARG_1));
> - writel(uic_cmnd->argument2,
> - (hba->mmio_base + REG_UIC_COMMAND_ARG_2));
> - writel(uic_cmnd->argument3,
> - (hba->mmio_base + REG_UIC_COMMAND_ARG_3));
> + ufshcd_writel(hba, uic_cmnd->argument1, REG_UIC_COMMAND_ARG_1);
> + ufshcd_writel(hba, uic_cmnd->argument2, REG_UIC_COMMAND_ARG_2);
> + ufshcd_writel(hba, uic_cmnd->argument3, REG_UIC_COMMAND_ARG_3);
>
> /* Write UIC Cmd */
> - writel((uic_cmnd->command & COMMAND_OPCODE_MASK),
> - (hba->mmio_base + REG_UIC_COMMAND));
> + ufshcd_writel(hba, uic_cmnd->command & COMMAND_OPCODE_MASK,
> + REG_UIC_COMMAND);
> }
>
> /**
> @@ -460,16 +449,15 @@ static void ufshcd_int_config(struct ufs_hba *hba,
> u32 option)
> {
> switch (option) {
> case UFSHCD_INT_ENABLE:
> - writel(hba->int_enable_mask,
> - (hba->mmio_base + REG_INTERRUPT_ENABLE));
> + ufshcd_writel(hba, hba->int_enable_mask, REG_INTERRUPT_ENABLE);
> break;
> case UFSHCD_INT_DISABLE:
> if (hba->ufs_version == UFSHCI_VERSION_10)
> - writel(INTERRUPT_DISABLE_MASK_10,
> - (hba->mmio_base + REG_INTERRUPT_ENABLE));
> + ufshcd_writel(hba, INTERRUPT_DISABLE_MASK_10,
> + REG_INTERRUPT_ENABLE);
> else
> - writel(INTERRUPT_DISABLE_MASK_11,
> - (hba->mmio_base + REG_INTERRUPT_ENABLE));
> + ufshcd_writel(hba, INTERRUPT_DISABLE_MASK_11,
> + REG_INTERRUPT_ENABLE);
> break;
> }
> }
> @@ -940,7 +928,7 @@ static int ufshcd_dme_link_startup(struct ufs_hba
> *hba)
> unsigned long flags;
>
> /* check if controller is ready to accept UIC commands */
> - if (((readl(hba->mmio_base + REG_CONTROLLER_STATUS)) &
> + if ((ufshcd_readl(hba, REG_CONTROLLER_STATUS) &
> UIC_COMMAND_READY) == 0x0) {
> dev_err(hba->dev,
> "Controller not ready"
> @@ -985,7 +973,7 @@ static int ufshcd_make_hba_operational(struct ufs_hba
> *hba)
> u32 reg;
>
> /* check if device present */
> - reg = readl((hba->mmio_base + REG_CONTROLLER_STATUS));
> + reg = ufshcd_readl(hba, REG_CONTROLLER_STATUS);
> if (!ufshcd_is_device_present(reg)) {
> dev_err(hba->dev, "cc: Device not present\n");
> err = -ENXIO;
> @@ -1107,14 +1095,14 @@ static int ufshcd_initialize_hba(struct ufs_hba
> *hba)
> return -EIO;
>
> /* Configure UTRL and UTMRL base address registers */
> - writel(lower_32_bits(hba->utrdl_dma_addr),
> - (hba->mmio_base + REG_UTP_TRANSFER_REQ_LIST_BASE_L));
> - writel(upper_32_bits(hba->utrdl_dma_addr),
> - (hba->mmio_base + REG_UTP_TRANSFER_REQ_LIST_BASE_H));
> - writel(lower_32_bits(hba->utmrdl_dma_addr),
> - (hba->mmio_base + REG_UTP_TASK_REQ_LIST_BASE_L));
> - writel(upper_32_bits(hba->utmrdl_dma_addr),
> - (hba->mmio_base + REG_UTP_TASK_REQ_LIST_BASE_H));
> + ufshcd_writel(hba, lower_32_bits(hba->utrdl_dma_addr),
> + REG_UTP_TRANSFER_REQ_LIST_BASE_L);
> + ufshcd_writel(hba, upper_32_bits(hba->utrdl_dma_addr),
> + REG_UTP_TRANSFER_REQ_LIST_BASE_H);
> + ufshcd_writel(hba, lower_32_bits(hba->utmrdl_dma_addr),
> + REG_UTP_TASK_REQ_LIST_BASE_L);
> + ufshcd_writel(hba, upper_32_bits(hba->utmrdl_dma_addr),
> + REG_UTP_TASK_REQ_LIST_BASE_H);
>
> /* Initialize unipro link startup procedure */
> return ufshcd_dme_link_startup(hba);
> @@ -1427,8 +1415,7 @@ static void ufshcd_transfer_req_compl(struct ufs_hba
> *hba)
> int index;
>
> lrb = hba->lrb;
> - tr_doorbell =
> - readl(hba->mmio_base + REG_UTP_TRANSFER_REQ_DOOR_BELL);
> + tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);
> completed_reqs = tr_doorbell ^ hba->outstanding_reqs;
>
> for (index = 0; index < hba->nutrs; index++) {
> @@ -1502,9 +1489,7 @@ static void ufshcd_err_handler(struct ufs_hba *hba)
> goto fatal_eh;
>
> if (hba->errors & UIC_ERROR) {
> -
> - reg = readl(hba->mmio_base +
> - REG_UIC_ERROR_CODE_PHY_ADAPTER_LAYER);
> + reg = ufshcd_readl(hba, REG_UIC_ERROR_CODE_PHY_ADAPTER_LAYER);
> if (reg & UIC_DATA_LINK_LAYER_ERROR_PA_INIT)
> goto fatal_eh;
> }
> @@ -1522,7 +1507,7 @@ static void ufshcd_tmc_handler(struct ufs_hba *hba)
> {
> u32 tm_doorbell;
>
> - tm_doorbell = readl(hba->mmio_base + REG_UTP_TASK_REQ_DOOR_BELL);
> + tm_doorbell = ufshcd_readl(hba, REG_UTP_TASK_REQ_DOOR_BELL);
> hba->tm_condition = tm_doorbell ^ hba->outstanding_tasks;
> wake_up_interruptible(&hba->ufshcd_tm_wait_queue);
> }
> @@ -1563,15 +1548,14 @@ static irqreturn_t ufshcd_intr(int irq, void
> *__hba)
> struct ufs_hba *hba = __hba;
>
> spin_lock(hba->host->host_lock);
> - intr_status = readl(hba->mmio_base + REG_INTERRUPT_STATUS);
> + intr_status = ufshcd_readl(hba, REG_INTERRUPT_STATUS);
>
> if (intr_status) {
> ufshcd_sl_intr(hba, intr_status);
>
> /* If UFSHCI 1.0 then clear interrupt status register */
> if (hba->ufs_version == UFSHCI_VERSION_10)
> - writel(intr_status,
> - (hba->mmio_base + REG_INTERRUPT_STATUS));
> + ufshcd_writel(hba, intr_status, REG_INTERRUPT_STATUS);
> retval = IRQ_HANDLED;
> }
> spin_unlock(hba->host->host_lock);
> @@ -1636,8 +1620,7 @@ ufshcd_issue_tm_cmd(struct ufs_hba *hba,
>
> /* send command to the controller */
> __set_bit(free_slot, &hba->outstanding_tasks);
> - writel((1 << free_slot),
> - (hba->mmio_base + REG_UTP_TASK_REQ_DOOR_BELL));
> + ufshcd_writel(hba, 1 << free_slot, REG_UTP_TASK_REQ_DOOR_BELL);
>
> spin_unlock_irqrestore(host->host_lock, flags);
>
> diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
> index 336980b..6429bed 100644
> --- a/drivers/scsi/ufs/ufshcd.h
> +++ b/drivers/scsi/ufs/ufshcd.h
> @@ -204,6 +204,11 @@ struct ufs_hba {
> struct ufs_query query;
> };
>
> +#define ufshcd_writel(hba, val, reg) \
> + writel((val), (hba)->mmio_base + (reg))
> +#define ufshcd_readl(hba, reg) \
> + readl((hba)->mmio_base + (reg))
> +
> int ufshcd_init(struct device *, struct ufs_hba ** , void __iomem * ,
> unsigned int);
> void ufshcd_remove(struct ufs_hba *);
> @@ -214,7 +219,7 @@ void ufshcd_remove(struct ufs_hba *);
> */
> static inline void ufshcd_hba_stop(struct ufs_hba *hba)
> {
> - writel(CONTROLLER_DISABLE, (hba->mmio_base + REG_CONTROLLER_ENABLE));
> + ufshcd_writel(hba, CONTROLLER_DISABLE, REG_CONTROLLER_ENABLE);
> }
>
> #endif /* End of Header */
> --
> 1.7.0.4
>
>
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--
Maya Erez
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