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scsi: ufshcd: remove unused quirks 

Remove various quirks that don't have users, as well as the dead code keyed
off them.

Link: https://lore.kernel.org/r/20200221140812.476338-2-hch@lst.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christoph Hellwig 2020-02-21 06:08:11 -08:00 committed by Martin K. Petersen
parent 4cbca7ea9e
commit 492001990f
2 changed files with 12 additions and 129 deletions
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109
drivers/scsi/ufs/ufshcd.c
View File

@ -645,11 +645,7 @@ static inline int ufshcd_get_tr_ocs(struct ufshcd_lrb *lrbp)
*/ */
static inline void ufshcd_utrl_clear(struct ufs_hba *hba, u32 pos) static inline void ufshcd_utrl_clear(struct ufs_hba *hba, u32 pos)
{ {
if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR) ufshcd_writel(hba, ~(1 << pos), REG_UTP_TRANSFER_REQ_LIST_CLEAR);
ufshcd_writel(hba, (1 << pos), REG_UTP_TRANSFER_REQ_LIST_CLEAR);
else
ufshcd_writel(hba, ~(1 << pos),
REG_UTP_TRANSFER_REQ_LIST_CLEAR);
} }
/** /**
@ -659,9 +655,6 @@ static inline void ufshcd_utrl_clear(struct ufs_hba *hba, u32 pos)
*/ */
static inline void ufshcd_utmrl_clear(struct ufs_hba *hba, u32 pos) static inline void ufshcd_utmrl_clear(struct ufs_hba *hba, u32 pos)
{ {
if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR)
ufshcd_writel(hba, (1 << pos), REG_UTP_TASK_REQ_LIST_CLEAR);
else
ufshcd_writel(hba, ~(1 << pos), REG_UTP_TASK_REQ_LIST_CLEAR); ufshcd_writel(hba, ~(1 << pos), REG_UTP_TASK_REQ_LIST_CLEAR);
} }
@ -2101,13 +2094,8 @@ static int ufshcd_map_sg(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
return sg_segments; return sg_segments;
if (sg_segments) { if (sg_segments) {
if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN)
lrbp->utr_descriptor_ptr->prd_table_length = lrbp->utr_descriptor_ptr->prd_table_length =
cpu_to_le16((u16)(sg_segments * cpu_to_le16((u16)sg_segments);
sizeof(struct ufshcd_sg_entry)));
else
lrbp->utr_descriptor_ptr->prd_table_length =
cpu_to_le16((u16) (sg_segments));
prd_table = (struct ufshcd_sg_entry *)lrbp->ucd_prdt_ptr; prd_table = (struct ufshcd_sg_entry *)lrbp->ucd_prdt_ptr;
@ -3436,21 +3424,11 @@ static void ufshcd_host_memory_configure(struct ufs_hba *hba)
cpu_to_le32(upper_32_bits(cmd_desc_element_addr)); cpu_to_le32(upper_32_bits(cmd_desc_element_addr));
/* Response upiu and prdt offset should be in double words */ /* Response upiu and prdt offset should be in double words */
if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) {
utrdlp[i].response_upiu_offset = utrdlp[i].response_upiu_offset =
cpu_to_le16(response_offset); cpu_to_le16(response_offset >> 2);
utrdlp[i].prd_table_offset = utrdlp[i].prd_table_offset = cpu_to_le16(prdt_offset >> 2);
cpu_to_le16(prdt_offset);
utrdlp[i].response_upiu_length =
cpu_to_le16(ALIGNED_UPIU_SIZE);
} else {
utrdlp[i].response_upiu_offset =
cpu_to_le16((response_offset >> 2));
utrdlp[i].prd_table_offset =
cpu_to_le16((prdt_offset >> 2));
utrdlp[i].response_upiu_length = utrdlp[i].response_upiu_length =
cpu_to_le16(ALIGNED_UPIU_SIZE >> 2); cpu_to_le16(ALIGNED_UPIU_SIZE >> 2);
}
hba->lrb[i].utr_descriptor_ptr = (utrdlp + i); hba->lrb[i].utr_descriptor_ptr = (utrdlp + i);
hba->lrb[i].utrd_dma_addr = hba->utrdl_dma_addr + hba->lrb[i].utrd_dma_addr = hba->utrdl_dma_addr +
@ -3493,52 +3471,6 @@ static int ufshcd_dme_link_startup(struct ufs_hba *hba)
"dme-link-startup: error code %d\n", ret); "dme-link-startup: error code %d\n", ret);
return ret; return ret;
} }
/**
* ufshcd_dme_reset - UIC command for DME_RESET
* @hba: per adapter instance
*
* DME_RESET command is issued in order to reset UniPro stack.
* This function now deal with cold reset.
*
* Returns 0 on success, non-zero value on failure
*/
static int ufshcd_dme_reset(struct ufs_hba *hba)
{
struct uic_command uic_cmd = {0};
int ret;
uic_cmd.command = UIC_CMD_DME_RESET;
ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
if (ret)
dev_err(hba->dev,
"dme-reset: error code %d\n", ret);
return ret;
}
/**
* ufshcd_dme_enable - UIC command for DME_ENABLE
* @hba: per adapter instance
*
* DME_ENABLE command is issued in order to enable UniPro stack.
*
* Returns 0 on success, non-zero value on failure
*/
static int ufshcd_dme_enable(struct ufs_hba *hba)
{
struct uic_command uic_cmd = {0};
int ret;
uic_cmd.command = UIC_CMD_DME_ENABLE;
ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
if (ret)
dev_err(hba->dev,
"dme-reset: error code %d\n", ret);
return ret;
}
static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba) static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba)
{ {
@ -4250,7 +4182,7 @@ static inline void ufshcd_hba_stop(struct ufs_hba *hba, bool can_sleep)
} }
/** /**
* ufshcd_hba_execute_hce - initialize the controller * ufshcd_hba_enable - initialize the controller
* @hba: per adapter instance * @hba: per adapter instance
* *
* The controller resets itself and controller firmware initialization * The controller resets itself and controller firmware initialization
@ -4259,7 +4191,7 @@ static inline void ufshcd_hba_stop(struct ufs_hba *hba, bool can_sleep)
* *
* Returns 0 on success, non-zero value on failure * Returns 0 on success, non-zero value on failure
*/ */
static int ufshcd_hba_execute_hce(struct ufs_hba *hba) int ufshcd_hba_enable(struct ufs_hba *hba)
{ {
int retry; int retry;
@ -4307,32 +4239,6 @@ static int ufshcd_hba_execute_hce(struct ufs_hba *hba)
return 0; return 0;
} }
int ufshcd_hba_enable(struct ufs_hba *hba)
{
int ret;
if (hba->quirks & UFSHCI_QUIRK_BROKEN_HCE) {
ufshcd_set_link_off(hba);
ufshcd_vops_hce_enable_notify(hba, PRE_CHANGE);
/* enable UIC related interrupts */
ufshcd_enable_intr(hba, UFSHCD_UIC_MASK);
ret = ufshcd_dme_reset(hba);
if (!ret) {
ret = ufshcd_dme_enable(hba);
if (!ret)
ufshcd_vops_hce_enable_notify(hba, POST_CHANGE);
if (ret)
dev_err(hba->dev,
"Host controller enable failed with non-hce\n");
}
} else {
ret = ufshcd_hba_execute_hce(hba);
}
return ret;
}
EXPORT_SYMBOL_GPL(ufshcd_hba_enable); EXPORT_SYMBOL_GPL(ufshcd_hba_enable);
static int ufshcd_disable_tx_lcc(struct ufs_hba *hba, bool peer) static int ufshcd_disable_tx_lcc(struct ufs_hba *hba, bool peer)
@ -4909,8 +4815,7 @@ static irqreturn_t ufshcd_transfer_req_compl(struct ufs_hba *hba)
* false interrupt if device completes another request after resetting * false interrupt if device completes another request after resetting
* aggregation and before reading the DB. * aggregation and before reading the DB.
*/ */
if (ufshcd_is_intr_aggr_allowed(hba) && if (ufshcd_is_intr_aggr_allowed(hba))
!(hba->quirks & UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR))
ufshcd_reset_intr_aggr(hba); ufshcd_reset_intr_aggr(hba);
tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL); tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);

22
drivers/scsi/ufs/ufshcd.h
View File

@ -613,28 +613,6 @@ struct ufs_hba {
*/ */
#define UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION 0x20 #define UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION 0x20
/*
* This quirk needs to be enabled if the host contoller regards
* resolution of the values of PRDTO and PRDTL in UTRD as byte.
*/
#define UFSHCD_QUIRK_PRDT_BYTE_GRAN 0x80
/*
* Clear handling for transfer/task request list is just opposite.
*/
#define UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR 0x100
/*
* This quirk needs to be enabled if host controller doesn't allow
* that the interrupt aggregation timer and counter are reset by s/w.
*/
#define UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR 0x200
/*
* This quirks needs to be enabled if host controller cannot be
* enabled via HCE register.
*/
#define UFSHCI_QUIRK_BROKEN_HCE 0x400
unsigned int quirks; /* Deviations from standard UFSHCI spec. */ unsigned int quirks; /* Deviations from standard UFSHCI spec. */
/* Device deviations from standard UFS device spec. */ /* Device deviations from standard UFS device spec. */