[MTD] OneNAND: release CPU in cycles
This patch teaches OneNAND to release processor in read/write/erase cycles and let other processes proceed. Also, remove buggi touch watchdog call which only hides the problem instead of solving it. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This commit is contained in:
Родитель
60d84f9739
Коммит
61a7e1983e
|
@ -310,7 +310,6 @@ static int onenand_wait(struct mtd_info *mtd, int state)
|
|||
|
||||
if (state != FL_READING)
|
||||
cond_resched();
|
||||
touch_softlockup_watchdog();
|
||||
}
|
||||
/* To get correct interrupt status in timeout case */
|
||||
interrupt = this->read_word(this->base + ONENAND_REG_INTERRUPT);
|
||||
|
@ -367,9 +366,6 @@ static int onenand_interrupt_wait(struct mtd_info *mtd, int state)
|
|||
{
|
||||
struct onenand_chip *this = mtd->priv;
|
||||
|
||||
/* To prevent soft lockup */
|
||||
touch_softlockup_watchdog();
|
||||
|
||||
wait_for_completion(&this->complete);
|
||||
|
||||
return onenand_wait(mtd, state);
|
||||
|
@ -390,9 +386,6 @@ static int onenand_try_interrupt_wait(struct mtd_info *mtd, int state)
|
|||
/* We use interrupt wait first */
|
||||
this->wait = onenand_interrupt_wait;
|
||||
|
||||
/* To prevent soft lockup */
|
||||
touch_softlockup_watchdog();
|
||||
|
||||
timeout = msecs_to_jiffies(100);
|
||||
remain = wait_for_completion_timeout(&this->complete, timeout);
|
||||
if (!remain) {
|
||||
|
@ -734,6 +727,8 @@ static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len,
|
|||
|
||||
stats = mtd->ecc_stats;
|
||||
while (read < len) {
|
||||
cond_resched();
|
||||
|
||||
thislen = min_t(int, mtd->writesize, len - read);
|
||||
|
||||
column = from & (mtd->writesize - 1);
|
||||
|
@ -815,6 +810,8 @@ int onenand_do_read_oob(struct mtd_info *mtd, loff_t from, size_t len,
|
|||
column = from & (mtd->oobsize - 1);
|
||||
|
||||
while (read < len) {
|
||||
cond_resched();
|
||||
|
||||
thislen = mtd->oobsize - column;
|
||||
thislen = min_t(int, thislen, len);
|
||||
|
||||
|
@ -989,6 +986,8 @@ static int onenand_write(struct mtd_info *mtd, loff_t to, size_t len,
|
|||
int thislen = min_t(int, bytes, len - written);
|
||||
u_char *wbuf = (u_char *) buf;
|
||||
|
||||
cond_resched();
|
||||
|
||||
this->command(mtd, ONENAND_CMD_BUFFERRAM, to, bytes);
|
||||
|
||||
/* Partial page write */
|
||||
|
@ -1075,6 +1074,8 @@ static int onenand_do_write_oob(struct mtd_info *mtd, loff_t to, size_t len,
|
|||
while (written < len) {
|
||||
int thislen = min_t(int, mtd->oobsize, len - written);
|
||||
|
||||
cond_resched();
|
||||
|
||||
column = to & (mtd->oobsize - 1);
|
||||
|
||||
this->command(mtd, ONENAND_CMD_BUFFERRAM, to, mtd->oobsize);
|
||||
|
@ -1202,6 +1203,7 @@ static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr)
|
|||
instr->state = MTD_ERASING;
|
||||
|
||||
while (len) {
|
||||
cond_resched();
|
||||
|
||||
/* Check if we have a bad block, we do not erase bad blocks */
|
||||
if (onenand_block_checkbad(mtd, addr, 0, 0)) {
|
||||
|
|
Загрузка…
Ссылка в новой задаче