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path: root/drivers/mmc/card/block.c
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Diffstat (limited to 'drivers/mmc/card/block.c')
-rw-r--r--drivers/mmc/card/block.c107
1 files changed, 57 insertions, 50 deletions
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index c6a383d0244..dabec556ebb 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -41,7 +41,6 @@
#include <linux/mmc/mmc.h>
#include <linux/mmc/sd.h>
-#include <asm/system.h>
#include <asm/uaccess.h>
#include "queue.h"
@@ -874,7 +873,7 @@ static int mmc_blk_issue_secdiscard_rq(struct mmc_queue *mq,
{
struct mmc_blk_data *md = mq->data;
struct mmc_card *card = md->queue.card;
- unsigned int from, nr, arg;
+ unsigned int from, nr, arg, trim_arg, erase_arg;
int err = 0, type = MMC_BLK_SECDISCARD;
if (!(mmc_can_secure_erase_trim(card) || mmc_can_sanitize(card))) {
@@ -882,20 +881,26 @@ static int mmc_blk_issue_secdiscard_rq(struct mmc_queue *mq,
goto out;
}
+ from = blk_rq_pos(req);
+ nr = blk_rq_sectors(req);
+
/* The sanitize operation is supported at v4.5 only */
if (mmc_can_sanitize(card)) {
- err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
- EXT_CSD_SANITIZE_START, 1, 0);
- goto out;
+ erase_arg = MMC_ERASE_ARG;
+ trim_arg = MMC_TRIM_ARG;
+ } else {
+ erase_arg = MMC_SECURE_ERASE_ARG;
+ trim_arg = MMC_SECURE_TRIM1_ARG;
}
- from = blk_rq_pos(req);
- nr = blk_rq_sectors(req);
-
- if (mmc_can_trim(card) && !mmc_erase_group_aligned(card, from, nr))
- arg = MMC_SECURE_TRIM1_ARG;
- else
- arg = MMC_SECURE_ERASE_ARG;
+ if (mmc_erase_group_aligned(card, from, nr))
+ arg = erase_arg;
+ else if (mmc_can_trim(card))
+ arg = trim_arg;
+ else {
+ err = -EINVAL;
+ goto out;
+ }
retry:
if (card->quirks & MMC_QUIRK_INAND_CMD38) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
@@ -905,25 +910,41 @@ retry:
INAND_CMD38_ARG_SECERASE,
0);
if (err)
- goto out;
+ goto out_retry;
}
+
err = mmc_erase(card, from, nr, arg);
- if (!err && arg == MMC_SECURE_TRIM1_ARG) {
+ if (err == -EIO)
+ goto out_retry;
+ if (err)
+ goto out;
+
+ if (arg == MMC_SECURE_TRIM1_ARG) {
if (card->quirks & MMC_QUIRK_INAND_CMD38) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
INAND_CMD38_ARG_EXT_CSD,
INAND_CMD38_ARG_SECTRIM2,
0);
if (err)
- goto out;
+ goto out_retry;
}
+
err = mmc_erase(card, from, nr, MMC_SECURE_TRIM2_ARG);
+ if (err == -EIO)
+ goto out_retry;
+ if (err)
+ goto out;
}
-out:
- if (err == -EIO && !mmc_blk_reset(md, card->host, type))
+
+ if (mmc_can_sanitize(card))
+ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_SANITIZE_START, 1, 0);
+out_retry:
+ if (err && !mmc_blk_reset(md, card->host, type))
goto retry;
if (!err)
mmc_blk_reset_success(md, type);
+out:
spin_lock_irq(&md->lock);
__blk_end_request(req, err, blk_rq_bytes(req));
spin_unlock_irq(&md->lock);
@@ -1080,6 +1101,7 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
struct mmc_blk_request *brq = &mqrq->brq;
struct request *req = mqrq->req;
struct mmc_blk_data *md = mq->data;
+ bool do_data_tag;
/*
* Reliable writes are used to implement Forced Unit Access and
@@ -1156,6 +1178,16 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
mmc_apply_rel_rw(brq, card, req);
/*
+ * Data tag is used only during writing meta data to speed
+ * up write and any subsequent read of this meta data
+ */
+ do_data_tag = (card->ext_csd.data_tag_unit_size) &&
+ (req->cmd_flags & REQ_META) &&
+ (rq_data_dir(req) == WRITE) &&
+ ((brq->data.blocks * brq->data.blksz) >=
+ card->ext_csd.data_tag_unit_size);
+
+ /*
* Pre-defined multi-block transfers are preferable to
* open ended-ones (and necessary for reliable writes).
* However, it is not sufficient to just send CMD23,
@@ -1173,13 +1205,13 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
* We'll avoid using CMD23-bounded multiblock writes for
* these, while retaining features like reliable writes.
*/
-
- if ((md->flags & MMC_BLK_CMD23) &&
- mmc_op_multi(brq->cmd.opcode) &&
- (do_rel_wr || !(card->quirks & MMC_QUIRK_BLK_NO_CMD23))) {
+ if ((md->flags & MMC_BLK_CMD23) && mmc_op_multi(brq->cmd.opcode) &&
+ (do_rel_wr || !(card->quirks & MMC_QUIRK_BLK_NO_CMD23) ||
+ do_data_tag)) {
brq->sbc.opcode = MMC_SET_BLOCK_COUNT;
brq->sbc.arg = brq->data.blocks |
- (do_rel_wr ? (1 << 31) : 0);
+ (do_rel_wr ? (1 << 31) : 0) |
+ (do_data_tag ? (1 << 29) : 0);
brq->sbc.flags = MMC_RSP_R1 | MMC_CMD_AC;
brq->mrq.sbc = &brq->sbc;
}
@@ -1613,24 +1645,6 @@ static int mmc_blk_alloc_parts(struct mmc_card *card, struct mmc_blk_data *md)
return ret;
}
-static int
-mmc_blk_set_blksize(struct mmc_blk_data *md, struct mmc_card *card)
-{
- int err;
-
- mmc_claim_host(card->host);
- err = mmc_set_blocklen(card, 512);
- mmc_release_host(card->host);
-
- if (err) {
- pr_err("%s: unable to set block size to 512: %d\n",
- md->disk->disk_name, err);
- return -EINVAL;
- }
-
- return 0;
-}
-
static void mmc_blk_remove_req(struct mmc_blk_data *md)
{
struct mmc_card *card;
@@ -1685,7 +1699,7 @@ static int mmc_add_disk(struct mmc_blk_data *md)
if ((md->area_type & MMC_BLK_DATA_AREA_BOOT) &&
card->ext_csd.boot_ro_lockable) {
- mode_t mode;
+ umode_t mode;
if (card->ext_csd.boot_ro_lock & EXT_CSD_BOOT_WP_B_PWR_WP_DIS)
mode = S_IRUGO;
@@ -1758,7 +1772,6 @@ static const struct mmc_fixup blk_fixups[] =
static int mmc_blk_probe(struct mmc_card *card)
{
struct mmc_blk_data *md, *part_md;
- int err;
char cap_str[10];
/*
@@ -1771,10 +1784,6 @@ static int mmc_blk_probe(struct mmc_card *card)
if (IS_ERR(md))
return PTR_ERR(md);
- err = mmc_blk_set_blksize(md, card);
- if (err)
- goto out;
-
string_get_size((u64)get_capacity(md->disk) << 9, STRING_UNITS_2,
cap_str, sizeof(cap_str));
pr_info("%s: %s %s %s %s\n",
@@ -1799,7 +1808,7 @@ static int mmc_blk_probe(struct mmc_card *card)
out:
mmc_blk_remove_parts(card, md);
mmc_blk_remove_req(md);
- return err;
+ return 0;
}
static void mmc_blk_remove(struct mmc_card *card)
@@ -1815,7 +1824,7 @@ static void mmc_blk_remove(struct mmc_card *card)
}
#ifdef CONFIG_PM
-static int mmc_blk_suspend(struct mmc_card *card, pm_message_t state)
+static int mmc_blk_suspend(struct mmc_card *card)
{
struct mmc_blk_data *part_md;
struct mmc_blk_data *md = mmc_get_drvdata(card);
@@ -1835,8 +1844,6 @@ static int mmc_blk_resume(struct mmc_card *card)
struct mmc_blk_data *md = mmc_get_drvdata(card);
if (md) {
- mmc_blk_set_blksize(md, card);
-
/*
* Resume involves the card going into idle state,
* so current partition is always the main one.
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-22 21:10:45 +0000