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Message-Id: <20240327160314.9982-10-apais@linux.microsoft.com>
Date: Wed, 27 Mar 2024 16:03:14 +0000
From: Allen Pais <apais@...ux.microsoft.com>
To: linux-kernel@...r.kernel.org
Cc: tj@...nel.org,
keescook@...omium.org,
vkoul@...nel.org,
marcan@...can.st,
sven@...npeter.dev,
florian.fainelli@...adcom.com,
rjui@...adcom.com,
sbranden@...adcom.com,
paul@...pouillou.net,
Eugeniy.Paltsev@...opsys.com,
manivannan.sadhasivam@...aro.org,
vireshk@...nel.org,
Frank.Li@....com,
leoyang.li@....com,
zw@...kernel.org,
wangzhou1@...ilicon.com,
haijie1@...wei.com,
shawnguo@...nel.org,
s.hauer@...gutronix.de,
sean.wang@...iatek.com,
matthias.bgg@...il.com,
angelogioacchino.delregno@...labora.com,
afaerber@...e.de,
logang@...tatee.com,
daniel@...que.org,
haojian.zhuang@...il.com,
robert.jarzmik@...e.fr,
andersson@...nel.org,
konrad.dybcio@...aro.org,
orsonzhai@...il.com,
baolin.wang@...ux.alibaba.com,
zhang.lyra@...il.com,
patrice.chotard@...s.st.com,
linus.walleij@...aro.org,
wens@...e.org,
jernej.skrabec@...il.com,
peter.ujfalusi@...il.com,
kys@...rosoft.com,
haiyangz@...rosoft.com,
wei.liu@...nel.org,
decui@...rosoft.com,
jassisinghbrar@...il.com,
mchehab@...nel.org,
maintainers@...echerrydvr.com,
aubin.constans@...rochip.com,
ulf.hansson@...aro.org,
manuel.lauss@...il.com,
mirq-linux@...e.qmqm.pl,
jh80.chung@...sung.com,
oakad@...oo.com,
hayashi.kunihiko@...ionext.com,
mhiramat@...nel.org,
brucechang@....com.tw,
HaraldWelte@...tech.com,
pierre@...man.eu,
duncan.sands@...e.fr,
stern@...land.harvard.edu,
oneukum@...e.com,
openipmi-developer@...ts.sourceforge.net,
dmaengine@...r.kernel.org,
asahi@...ts.linux.dev,
linux-arm-kernel@...ts.infradead.org,
linux-rpi-kernel@...ts.infradead.org,
linux-mips@...r.kernel.org,
imx@...ts.linux.dev,
linuxppc-dev@...ts.ozlabs.org,
linux-mediatek@...ts.infradead.org,
linux-actions@...ts.infradead.org,
linux-arm-msm@...r.kernel.org,
linux-riscv@...ts.infradead.org,
linux-sunxi@...ts.linux.dev,
linux-tegra@...r.kernel.org,
linux-hyperv@...r.kernel.org,
linux-rdma@...r.kernel.org,
linux-media@...r.kernel.org,
linux-mmc@...r.kernel.org,
linux-omap@...r.kernel.org,
linux-renesas-soc@...r.kernel.org,
linux-s390@...r.kernel.org,
netdev@...r.kernel.org,
linux-usb@...r.kernel.org
Subject: [PATCH 9/9] mmc: Convert from tasklet to BH workqueue
The only generic interface to execute asynchronously in the BH context is
tasklet; however, it's marked deprecated and has some design flaws. To
replace tasklets, BH workqueue support was recently added. A BH workqueue
behaves similarly to regular workqueues except that the queued work items
are executed in the BH context.
This patch converts drivers/infiniband/* from tasklet to BH workqueue.
Based on the work done by Tejun Heo <tj@...nel.org>
Branch: https://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git for-6.10
Signed-off-by: Allen Pais <allen.lkml@...il.com>
---
drivers/mmc/host/atmel-mci.c | 35 ++++-----
drivers/mmc/host/au1xmmc.c | 37 ++++-----
drivers/mmc/host/cb710-mmc.c | 15 ++--
drivers/mmc/host/cb710-mmc.h | 3 +-
drivers/mmc/host/dw_mmc.c | 25 ++++---
drivers/mmc/host/dw_mmc.h | 9 ++-
drivers/mmc/host/omap.c | 17 +++--
drivers/mmc/host/renesas_sdhi.h | 3 +-
drivers/mmc/host/renesas_sdhi_internal_dmac.c | 24 +++---
drivers/mmc/host/renesas_sdhi_sys_dmac.c | 9 +--
drivers/mmc/host/sdhci-bcm-kona.c | 2 +-
drivers/mmc/host/tifm_sd.c | 15 ++--
drivers/mmc/host/tmio_mmc.h | 3 +-
drivers/mmc/host/tmio_mmc_core.c | 4 +-
drivers/mmc/host/uniphier-sd.c | 13 ++--
drivers/mmc/host/via-sdmmc.c | 25 ++++---
drivers/mmc/host/wbsd.c | 75 ++++++++++---------
drivers/mmc/host/wbsd.h | 10 +--
18 files changed, 167 insertions(+), 157 deletions(-)
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index dba826db739a..0a92a7fd020f 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -33,6 +33,7 @@
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/pinctrl/consumer.h>
+#include <linux/workqueue.h>
#include <asm/cacheflush.h>
#include <asm/io.h>
@@ -284,12 +285,12 @@ struct atmel_mci_dma {
* EVENT_DATA_ERROR is pending.
* @stop_cmdr: Value to be loaded into CMDR when the stop command is
* to be sent.
- * @tasklet: Tasklet running the request state machine.
+ * @work: Work running the request state machine.
* @pending_events: Bitmask of events flagged by the interrupt handler
- * to be processed by the tasklet.
+ * to be processed by the work.
* @completed_events: Bitmask of events which the state machine has
* processed.
- * @state: Tasklet state.
+ * @state: Work state.
* @queue: List of slots waiting for access to the controller.
* @need_clock_update: Update the clock rate before the next request.
* @need_reset: Reset controller before next request.
@@ -363,7 +364,7 @@ struct atmel_mci {
u32 data_status;
u32 stop_cmdr;
- struct tasklet_struct tasklet;
+ struct work_struct work;
unsigned long pending_events;
unsigned long completed_events;
enum atmel_mci_state state;
@@ -761,7 +762,7 @@ static void atmci_timeout_timer(struct timer_list *t)
host->need_reset = 1;
host->state = STATE_END_REQUEST;
smp_wmb();
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
}
static inline unsigned int atmci_ns_to_clocks(struct atmel_mci *host,
@@ -983,7 +984,7 @@ static void atmci_pdc_complete(struct atmel_mci *host)
dev_dbg(&host->pdev->dev, "(%s) set pending xfer complete\n", __func__);
atmci_set_pending(host, EVENT_XFER_COMPLETE);
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
}
static void atmci_dma_cleanup(struct atmel_mci *host)
@@ -997,7 +998,7 @@ static void atmci_dma_cleanup(struct atmel_mci *host)
}
/*
- * This function is called by the DMA driver from tasklet context.
+ * This function is called by the DMA driver from work context.
*/
static void atmci_dma_complete(void *arg)
{
@@ -1020,7 +1021,7 @@ static void atmci_dma_complete(void *arg)
dev_dbg(&host->pdev->dev,
"(%s) set pending xfer complete\n", __func__);
atmci_set_pending(host, EVENT_XFER_COMPLETE);
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
/*
* Regardless of what the documentation says, we have
@@ -1033,7 +1034,7 @@ static void atmci_dma_complete(void *arg)
* haven't seen all the potential error bits yet.
*
* The interrupt handler will schedule a different
- * tasklet to finish things up when the data transfer
+ * work to finish things up when the data transfer
* is completely done.
*
* We may not complete the mmc request here anyway
@@ -1765,9 +1766,9 @@ static void atmci_detect_change(struct timer_list *t)
}
}
-static void atmci_tasklet_func(struct tasklet_struct *t)
+static void atmci_work_func(struct work_struct *t)
{
- struct atmel_mci *host = from_tasklet(host, t, tasklet);
+ struct atmel_mci *host = from_work(host, t, work);
struct mmc_request *mrq = host->mrq;
struct mmc_data *data = host->data;
enum atmel_mci_state state = host->state;
@@ -1779,7 +1780,7 @@ static void atmci_tasklet_func(struct tasklet_struct *t)
state = host->state;
dev_vdbg(&host->pdev->dev,
- "tasklet: state %u pending/completed/mask %lx/%lx/%x\n",
+ "work: state %u pending/completed/mask %lx/%lx/%x\n",
state, host->pending_events, host->completed_events,
atmci_readl(host, ATMCI_IMR));
@@ -2141,7 +2142,7 @@ static irqreturn_t atmci_interrupt(int irq, void *dev_id)
dev_dbg(&host->pdev->dev, "set pending data error\n");
smp_wmb();
atmci_set_pending(host, EVENT_DATA_ERROR);
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
}
if (pending & ATMCI_TXBUFE) {
@@ -2210,7 +2211,7 @@ static irqreturn_t atmci_interrupt(int irq, void *dev_id)
smp_wmb();
dev_dbg(&host->pdev->dev, "set pending notbusy\n");
atmci_set_pending(host, EVENT_NOTBUSY);
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
}
if (pending & ATMCI_NOTBUSY) {
@@ -2219,7 +2220,7 @@ static irqreturn_t atmci_interrupt(int irq, void *dev_id)
smp_wmb();
dev_dbg(&host->pdev->dev, "set pending notbusy\n");
atmci_set_pending(host, EVENT_NOTBUSY);
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
}
if (pending & ATMCI_RXRDY)
@@ -2234,7 +2235,7 @@ static irqreturn_t atmci_interrupt(int irq, void *dev_id)
smp_wmb();
dev_dbg(&host->pdev->dev, "set pending cmd rdy\n");
atmci_set_pending(host, EVENT_CMD_RDY);
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
}
if (pending & (ATMCI_SDIOIRQA | ATMCI_SDIOIRQB))
@@ -2530,7 +2531,7 @@ static int atmci_probe(struct platform_device *pdev)
host->mapbase = regs->start;
- tasklet_setup(&host->tasklet, atmci_tasklet_func);
+ INIT_WORK(&host->work, atmci_work_func);
ret = request_irq(irq, atmci_interrupt, 0, dev_name(&pdev->dev), host);
if (ret) {
diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index b5a5c6a2fe8b..c86fa7d2ebb7 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -42,6 +42,7 @@
#include <linux/leds.h>
#include <linux/mmc/host.h>
#include <linux/slab.h>
+#include <linux/workqueue.h>
#include <asm/io.h>
#include <asm/mach-au1x00/au1000.h>
@@ -113,8 +114,8 @@ struct au1xmmc_host {
int irq;
- struct tasklet_struct finish_task;
- struct tasklet_struct data_task;
+ struct work_struct finish_task;
+ struct work_struct data_task;
struct au1xmmc_platform_data *platdata;
struct platform_device *pdev;
struct resource *ioarea;
@@ -253,9 +254,9 @@ static void au1xmmc_finish_request(struct au1xmmc_host *host)
mmc_request_done(host->mmc, mrq);
}
-static void au1xmmc_tasklet_finish(struct tasklet_struct *t)
+static void au1xmmc_work_finish(struct work_struct *t)
{
- struct au1xmmc_host *host = from_tasklet(host, t, finish_task);
+ struct au1xmmc_host *host = from_work(host, t, finish_task);
au1xmmc_finish_request(host);
}
@@ -363,9 +364,9 @@ static void au1xmmc_data_complete(struct au1xmmc_host *host, u32 status)
au1xmmc_finish_request(host);
}
-static void au1xmmc_tasklet_data(struct tasklet_struct *t)
+static void au1xmmc_work_data(struct work_struct *t)
{
- struct au1xmmc_host *host = from_tasklet(host, t, data_task);
+ struct au1xmmc_host *host = from_work(host, t, data_task);
u32 status = __raw_readl(HOST_STATUS(host));
au1xmmc_data_complete(host, status);
@@ -425,7 +426,7 @@ static void au1xmmc_send_pio(struct au1xmmc_host *host)
if (host->flags & HOST_F_STOP)
SEND_STOP(host);
- tasklet_schedule(&host->data_task);
+ queue_work(system_bh_wq, &host->data_task);
}
}
@@ -505,7 +506,7 @@ static void au1xmmc_receive_pio(struct au1xmmc_host *host)
if (host->flags & HOST_F_STOP)
SEND_STOP(host);
- tasklet_schedule(&host->data_task);
+ queue_work(system_bh_wq, &host->data_task);
}
}
@@ -561,7 +562,7 @@ static void au1xmmc_cmd_complete(struct au1xmmc_host *host, u32 status)
if (!trans || cmd->error) {
IRQ_OFF(host, SD_CONFIG_TH | SD_CONFIG_RA | SD_CONFIG_RF);
- tasklet_schedule(&host->finish_task);
+ queue_work(system_bh_wq, &host->finish_task);
return;
}
@@ -797,7 +798,7 @@ static irqreturn_t au1xmmc_irq(int irq, void *dev_id)
IRQ_OFF(host, SD_CONFIG_NE | SD_CONFIG_TH);
/* IRQ_OFF(host, SD_CONFIG_TH | SD_CONFIG_RA | SD_CONFIG_RF); */
- tasklet_schedule(&host->finish_task);
+ queue_work(system_bh_wq, &host->finish_task);
}
#if 0
else if (status & SD_STATUS_DD) {
@@ -806,7 +807,7 @@ static irqreturn_t au1xmmc_irq(int irq, void *dev_id)
au1xmmc_receive_pio(host);
else {
au1xmmc_data_complete(host, status);
- /* tasklet_schedule(&host->data_task); */
+ /* queue_work(system_bh_wq, &host->data_task); */
}
}
#endif
@@ -854,7 +855,7 @@ static void au1xmmc_dbdma_callback(int irq, void *dev_id)
if (host->flags & HOST_F_STOP)
SEND_STOP(host);
- tasklet_schedule(&host->data_task);
+ queue_work(system_bh_wq, &host->data_task);
}
static int au1xmmc_dbdma_init(struct au1xmmc_host *host)
@@ -1039,9 +1040,9 @@ static int au1xmmc_probe(struct platform_device *pdev)
if (host->platdata)
mmc->caps &= ~(host->platdata->mask_host_caps);
- tasklet_setup(&host->data_task, au1xmmc_tasklet_data);
+ INIT_WORK(&host->data_task, au1xmmc_work_data);
- tasklet_setup(&host->finish_task, au1xmmc_tasklet_finish);
+ INIT_WORK(&host->finish_task, au1xmmc_work_finish);
if (has_dbdma()) {
ret = au1xmmc_dbdma_init(host);
@@ -1091,8 +1092,8 @@ static int au1xmmc_probe(struct platform_device *pdev)
if (host->flags & HOST_F_DBDMA)
au1xmmc_dbdma_shutdown(host);
- tasklet_kill(&host->data_task);
- tasklet_kill(&host->finish_task);
+ cancel_work_sync(&host->data_task);
+ cancel_work_sync(&host->finish_task);
if (host->platdata && host->platdata->cd_setup &&
!(mmc->caps & MMC_CAP_NEEDS_POLL))
@@ -1135,8 +1136,8 @@ static void au1xmmc_remove(struct platform_device *pdev)
__raw_writel(0, HOST_CONFIG2(host));
wmb(); /* drain writebuffer */
- tasklet_kill(&host->data_task);
- tasklet_kill(&host->finish_task);
+ cancel_work_sync(&host->data_task);
+ cancel_work_sync(&host->finish_task);
if (host->flags & HOST_F_DBDMA)
au1xmmc_dbdma_shutdown(host);
diff --git a/drivers/mmc/host/cb710-mmc.c b/drivers/mmc/host/cb710-mmc.c
index 0aec33b88bef..eebb6797e785 100644
--- a/drivers/mmc/host/cb710-mmc.c
+++ b/drivers/mmc/host/cb710-mmc.c
@@ -8,6 +8,7 @@
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/delay.h>
+#include <linux/workqueue.h>
#include "cb710-mmc.h"
#define CB710_MMC_REQ_TIMEOUT_MS 2000
@@ -493,7 +494,7 @@ static void cb710_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
if (!cb710_mmc_command(mmc, mrq->cmd) && mrq->stop)
cb710_mmc_command(mmc, mrq->stop);
- tasklet_schedule(&reader->finish_req_tasklet);
+ queue_work(system_bh_wq, &reader->finish_req_work);
}
static int cb710_mmc_powerup(struct cb710_slot *slot)
@@ -646,10 +647,10 @@ static int cb710_mmc_irq_handler(struct cb710_slot *slot)
return 1;
}
-static void cb710_mmc_finish_request_tasklet(struct tasklet_struct *t)
+static void cb710_mmc_finish_request_work(struct work_struct *t)
{
- struct cb710_mmc_reader *reader = from_tasklet(reader, t,
- finish_req_tasklet);
+ struct cb710_mmc_reader *reader = from_work(reader, t,
+ finish_req_work);
struct mmc_request *mrq = reader->mrq;
reader->mrq = NULL;
@@ -718,8 +719,8 @@ static int cb710_mmc_init(struct platform_device *pdev)
reader = mmc_priv(mmc);
- tasklet_setup(&reader->finish_req_tasklet,
- cb710_mmc_finish_request_tasklet);
+ INIT_WORK(&reader->finish_req_work,
+ cb710_mmc_finish_request_work);
spin_lock_init(&reader->irq_lock);
cb710_dump_regs(chip, CB710_DUMP_REGS_MMC);
@@ -763,7 +764,7 @@ static void cb710_mmc_exit(struct platform_device *pdev)
cb710_write_port_32(slot, CB710_MMC_CONFIG_PORT, 0);
cb710_write_port_16(slot, CB710_MMC_CONFIGB_PORT, 0);
- tasklet_kill(&reader->finish_req_tasklet);
+ cancel_work_sync(&reader->finish_req_work);
mmc_free_host(mmc);
}
diff --git a/drivers/mmc/host/cb710-mmc.h b/drivers/mmc/host/cb710-mmc.h
index 5e053077dbed..b35ab8736374 100644
--- a/drivers/mmc/host/cb710-mmc.h
+++ b/drivers/mmc/host/cb710-mmc.h
@@ -8,10 +8,11 @@
#define LINUX_CB710_MMC_H
#include <linux/cb710.h>
+#include <linux/workqueue.h>
/* per-MMC-reader structure */
struct cb710_mmc_reader {
- struct tasklet_struct finish_req_tasklet;
+ struct work_struct finish_req_work;
struct mmc_request *mrq;
spinlock_t irq_lock;
unsigned char last_power_mode;
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 8e2d676b9239..ee6f892bc0d8 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -36,6 +36,7 @@
#include <linux/regulator/consumer.h>
#include <linux/of.h>
#include <linux/mmc/slot-gpio.h>
+#include <linux/workqueue.h>
#include "dw_mmc.h"
@@ -493,7 +494,7 @@ static void dw_mci_dmac_complete_dma(void *arg)
*/
if (data) {
set_bit(EVENT_XFER_COMPLETE, &host->pending_events);
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
}
}
@@ -1834,7 +1835,7 @@ static enum hrtimer_restart dw_mci_fault_timer(struct hrtimer *t)
if (!host->data_status) {
host->data_status = SDMMC_INT_DCRC;
set_bit(EVENT_DATA_ERROR, &host->pending_events);
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
}
spin_unlock_irqrestore(&host->irq_lock, flags);
@@ -2056,9 +2057,9 @@ static bool dw_mci_clear_pending_data_complete(struct dw_mci *host)
return true;
}
-static void dw_mci_tasklet_func(struct tasklet_struct *t)
+static void dw_mci_work_func(struct work_struct *t)
{
- struct dw_mci *host = from_tasklet(host, t, tasklet);
+ struct dw_mci *host = from_work(host, t, work);
struct mmc_data *data;
struct mmc_command *cmd;
struct mmc_request *mrq;
@@ -2113,7 +2114,7 @@ static void dw_mci_tasklet_func(struct tasklet_struct *t)
* will waste a bit of time (we already know
* the command was bad), it can't cause any
* errors since it's possible it would have
- * taken place anyway if this tasklet got
+ * taken place anyway if this work got
* delayed. Allowing the transfer to take place
* avoids races and keeps things simple.
*/
@@ -2706,7 +2707,7 @@ static void dw_mci_cmd_interrupt(struct dw_mci *host, u32 status)
smp_wmb(); /* drain writebuffer */
set_bit(EVENT_CMD_COMPLETE, &host->pending_events);
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
dw_mci_start_fault_timer(host);
}
@@ -2774,7 +2775,7 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
set_bit(EVENT_DATA_COMPLETE,
&host->pending_events);
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
spin_unlock(&host->irq_lock);
}
@@ -2793,7 +2794,7 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
dw_mci_read_data_pio(host, true);
}
set_bit(EVENT_DATA_COMPLETE, &host->pending_events);
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
spin_unlock(&host->irq_lock);
}
@@ -3098,7 +3099,7 @@ static void dw_mci_cmd11_timer(struct timer_list *t)
host->cmd_status = SDMMC_INT_RTO;
set_bit(EVENT_CMD_COMPLETE, &host->pending_events);
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
}
static void dw_mci_cto_timer(struct timer_list *t)
@@ -3144,7 +3145,7 @@ static void dw_mci_cto_timer(struct timer_list *t)
*/
host->cmd_status = SDMMC_INT_RTO;
set_bit(EVENT_CMD_COMPLETE, &host->pending_events);
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
break;
default:
dev_warn(host->dev, "Unexpected command timeout, state %d\n",
@@ -3195,7 +3196,7 @@ static void dw_mci_dto_timer(struct timer_list *t)
host->data_status = SDMMC_INT_DRTO;
set_bit(EVENT_DATA_ERROR, &host->pending_events);
set_bit(EVENT_DATA_COMPLETE, &host->pending_events);
- tasklet_schedule(&host->tasklet);
+ queue_work(system_bh_wq, &host->work);
break;
default:
dev_warn(host->dev, "Unexpected data timeout, state %d\n",
@@ -3435,7 +3436,7 @@ int dw_mci_probe(struct dw_mci *host)
else
host->fifo_reg = host->regs + DATA_240A_OFFSET;
- tasklet_setup(&host->tasklet, dw_mci_tasklet_func);
+ INIT_WORK(&host->work, dw_mci_work_func);
ret = devm_request_irq(host->dev, host->irq, dw_mci_interrupt,
host->irq_flags, "dw-mci", host);
if (ret)
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index 4ed81f94f7ca..d17f398a0432 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -17,6 +17,7 @@
#include <linux/fault-inject.h>
#include <linux/hrtimer.h>
#include <linux/interrupt.h>
+#include <linux/workqueue.h>
enum dw_mci_state {
STATE_IDLE = 0,
@@ -89,12 +90,12 @@ struct dw_mci_dma_slave {
* @stop_cmdr: Value to be loaded into CMDR when the stop command is
* to be sent.
* @dir_status: Direction of current transfer.
- * @tasklet: Tasklet running the request state machine.
+ * @work: Work running the request state machine.
* @pending_events: Bitmask of events flagged by the interrupt handler
- * to be processed by the tasklet.
+ * to be processed by the work.
* @completed_events: Bitmask of events which the state machine has
* processed.
- * @state: Tasklet state.
+ * @state: Work state.
* @queue: List of slots waiting for access to the controller.
* @bus_hz: The rate of @mck in Hz. This forms the basis for MMC bus
* rate and timeout calculations.
@@ -194,7 +195,7 @@ struct dw_mci {
u32 data_status;
u32 stop_cmdr;
u32 dir_status;
- struct tasklet_struct tasklet;
+ struct work_struct work;
unsigned long pending_events;
unsigned long completed_events;
enum dw_mci_state state;
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 088f8ed4fdc4..d85bae7b9cba 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -28,6 +28,7 @@
#include <linux/slab.h>
#include <linux/gpio/consumer.h>
#include <linux/platform_data/mmc-omap.h>
+#include <linux/workqueue.h>
#define OMAP_MMC_REG_CMD 0x00
@@ -105,7 +106,7 @@ struct mmc_omap_slot {
u16 power_mode;
unsigned int fclk_freq;
- struct tasklet_struct cover_tasklet;
+ struct work_struct cover_work;
struct timer_list cover_timer;
unsigned cover_open;
@@ -873,18 +874,18 @@ void omap_mmc_notify_cover_event(struct device *dev, int num, int is_closed)
sysfs_notify(&slot->mmc->class_dev.kobj, NULL, "cover_switch");
}
- tasklet_hi_schedule(&slot->cover_tasklet);
+ queue_work(system_bh_highpri_wq, &slot->cover_work);
}
static void mmc_omap_cover_timer(struct timer_list *t)
{
struct mmc_omap_slot *slot = from_timer(slot, t, cover_timer);
- tasklet_schedule(&slot->cover_tasklet);
+ queue_work(system_bh_wq, &slot->cover_work);
}
-static void mmc_omap_cover_handler(struct tasklet_struct *t)
+static void mmc_omap_cover_handler(struct work_struct *t)
{
- struct mmc_omap_slot *slot = from_tasklet(slot, t, cover_tasklet);
+ struct mmc_omap_slot *slot = from_work(slot, t, cover_work);
int cover_open = mmc_omap_cover_is_open(slot);
mmc_detect_change(slot->mmc, 0);
@@ -1299,7 +1300,7 @@ static int mmc_omap_new_slot(struct mmc_omap_host *host, int id)
if (slot->pdata->get_cover_state != NULL) {
timer_setup(&slot->cover_timer, mmc_omap_cover_timer, 0);
- tasklet_setup(&slot->cover_tasklet, mmc_omap_cover_handler);
+ INIT_WORK(&slot->cover_work, mmc_omap_cover_handler);
}
r = mmc_add_host(mmc);
@@ -1318,7 +1319,7 @@ static int mmc_omap_new_slot(struct mmc_omap_host *host, int id)
&dev_attr_cover_switch);
if (r < 0)
goto err_remove_slot_name;
- tasklet_schedule(&slot->cover_tasklet);
+ queue_work(system_bh_wq, &slot->cover_work);
}
return 0;
@@ -1341,7 +1342,7 @@ static void mmc_omap_remove_slot(struct mmc_omap_slot *slot)
if (slot->pdata->get_cover_state != NULL)
device_remove_file(&mmc->class_dev, &dev_attr_cover_switch);
- tasklet_kill(&slot->cover_tasklet);
+ cancel_work_sync(&slot->cover_work);
del_timer_sync(&slot->cover_timer);
flush_workqueue(slot->host->mmc_omap_wq);
diff --git a/drivers/mmc/host/renesas_sdhi.h b/drivers/mmc/host/renesas_sdhi.h
index 586f94d4dbfd..4fd2bfcacd76 100644
--- a/drivers/mmc/host/renesas_sdhi.h
+++ b/drivers/mmc/host/renesas_sdhi.h
@@ -11,6 +11,7 @@
#include <linux/dmaengine.h>
#include <linux/platform_device.h>
+#include <linux/workqueue.h>
#include "tmio_mmc.h"
struct renesas_sdhi_scc {
@@ -67,7 +68,7 @@ struct renesas_sdhi_dma {
dma_filter_fn filter;
void (*enable)(struct tmio_mmc_host *host, bool enable);
struct completion dma_dataend;
- struct tasklet_struct dma_complete;
+ struct work_struct dma_complete;
};
struct renesas_sdhi {
diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
index 53d34c3eddce..f175f8898516 100644
--- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
@@ -336,7 +336,7 @@ static bool renesas_sdhi_internal_dmac_dma_irq(struct tmio_mmc_host *host)
writel(status ^ dma_irqs, host->ctl + DM_CM_INFO1);
set_bit(SDHI_DMA_END_FLAG_DMA, &dma_priv->end_flags);
if (test_bit(SDHI_DMA_END_FLAG_ACCESS, &dma_priv->end_flags))
- tasklet_schedule(&dma_priv->dma_complete);
+ queue_work(system_bh_wq, &dma_priv->dma_complete);
}
return status & dma_irqs;
@@ -351,7 +351,7 @@ renesas_sdhi_internal_dmac_dataend_dma(struct tmio_mmc_host *host)
set_bit(SDHI_DMA_END_FLAG_ACCESS, &dma_priv->end_flags);
if (test_bit(SDHI_DMA_END_FLAG_DMA, &dma_priv->end_flags) ||
host->data->error)
- tasklet_schedule(&dma_priv->dma_complete);
+ queue_work(system_bh_wq, &dma_priv->dma_complete);
}
/*
@@ -439,9 +439,9 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host,
renesas_sdhi_internal_dmac_enable_dma(host, false);
}
-static void renesas_sdhi_internal_dmac_issue_tasklet_fn(unsigned long arg)
+static void renesas_sdhi_internal_dmac_issue_work_fn(struct work_struct *t)
{
- struct tmio_mmc_host *host = (struct tmio_mmc_host *)arg;
+ struct tmio_mmc_host *host = from_work(host, t, dma_issue);
struct renesas_sdhi *priv = host_to_priv(host);
tmio_mmc_enable_mmc_irqs(host, TMIO_STAT_DATAEND);
@@ -453,7 +453,7 @@ static void renesas_sdhi_internal_dmac_issue_tasklet_fn(unsigned long arg)
/* on CMD errors, simulate DMA end immediately */
set_bit(SDHI_DMA_END_FLAG_DMA, &priv->dma_priv.end_flags);
if (test_bit(SDHI_DMA_END_FLAG_ACCESS, &priv->dma_priv.end_flags))
- tasklet_schedule(&priv->dma_priv.dma_complete);
+ queue_work(system_bh_wq, &priv->dma_priv.dma_complete);
}
}
@@ -483,9 +483,9 @@ static bool renesas_sdhi_internal_dmac_complete(struct tmio_mmc_host *host)
return true;
}
-static void renesas_sdhi_internal_dmac_complete_tasklet_fn(unsigned long arg)
+static void renesas_sdhi_internal_dmac_complete_work_fn(struct work_struct *t)
{
- struct tmio_mmc_host *host = (struct tmio_mmc_host *)arg;
+ struct tmio_mmc_host *host = from_work(host, t, dam_complete);
spin_lock_irq(&host->lock);
if (!renesas_sdhi_internal_dmac_complete(host))
@@ -543,12 +543,10 @@ renesas_sdhi_internal_dmac_request_dma(struct tmio_mmc_host *host,
/* Each value is set to non-zero to assume "enabling" each DMA */
host->chan_rx = host->chan_tx = (void *)0xdeadbeaf;
- tasklet_init(&priv->dma_priv.dma_complete,
- renesas_sdhi_internal_dmac_complete_tasklet_fn,
- (unsigned long)host);
- tasklet_init(&host->dma_issue,
- renesas_sdhi_internal_dmac_issue_tasklet_fn,
- (unsigned long)host);
+ INIT_WORK(&priv->dma_priv.dma_complete,
+ renesas_sdhi_internal_dmac_complete_work_fn);
+ INIT_WORK(&host->dma_issue,
+ renesas_sdhi_internal_dmac_issue_work_fn);
/* Add pre_req and post_req */
host->ops.pre_req = renesas_sdhi_internal_dmac_pre_req;
diff --git a/drivers/mmc/host/renesas_sdhi_sys_dmac.c b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
index 9cf7f9feab72..793595ad6d02 100644
--- a/drivers/mmc/host/renesas_sdhi_sys_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
@@ -312,9 +312,9 @@ static void renesas_sdhi_sys_dmac_start_dma(struct tmio_mmc_host *host,
}
}
-static void renesas_sdhi_sys_dmac_issue_tasklet_fn(unsigned long priv)
+static void renesas_sdhi_sys_dmac_issue_work_fn(struct work_struct *t)
{
- struct tmio_mmc_host *host = (struct tmio_mmc_host *)priv;
+ struct tmio_mmc_host *host = from_work(host, t, dma_issue);
struct dma_chan *chan = NULL;
spin_lock_irq(&host->lock);
@@ -401,9 +401,8 @@ static void renesas_sdhi_sys_dmac_request_dma(struct tmio_mmc_host *host,
goto ebouncebuf;
init_completion(&priv->dma_priv.dma_dataend);
- tasklet_init(&host->dma_issue,
- renesas_sdhi_sys_dmac_issue_tasklet_fn,
- (unsigned long)host);
+ INIT_WORK(&host->dma_issue,
+ renesas_sdhi_sys_dmac_issue_work_fn);
}
renesas_sdhi_sys_dmac_enable_dma(host, true);
diff --git a/drivers/mmc/host/sdhci-bcm-kona.c b/drivers/mmc/host/sdhci-bcm-kona.c
index cb9152c6a65d..974f205d479b 100644
--- a/drivers/mmc/host/sdhci-bcm-kona.c
+++ b/drivers/mmc/host/sdhci-bcm-kona.c
@@ -107,7 +107,7 @@ static void sdhci_bcm_kona_sd_init(struct sdhci_host *host)
* Software emulation of the SD card insertion/removal. Set insert=1 for insert
* and insert=0 for removal. The card detection is done by GPIO. For Broadcom
* IP to function properly the bit 0 of CORESTAT register needs to be set/reset
- * to generate the CD IRQ handled in sdhci.c which schedules card_tasklet.
+ * to generate the CD IRQ handled in sdhci.c which schedules card_work.
*/
static int sdhci_bcm_kona_sd_card_emulate(struct sdhci_host *host, int insert)
{
diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c
index b5a2f2f25ad9..c6285c577db0 100644
--- a/drivers/mmc/host/tifm_sd.c
+++ b/drivers/mmc/host/tifm_sd.c
@@ -13,6 +13,7 @@
#include <linux/highmem.h>
#include <linux/scatterlist.h>
#include <linux/module.h>
+#include <linux/workqueue.h>
#include <asm/io.h>
#define DRIVER_NAME "tifm_sd"
@@ -97,7 +98,7 @@ struct tifm_sd {
unsigned int clk_div;
unsigned long timeout_jiffies;
- struct tasklet_struct finish_tasklet;
+ struct work_struct finish_work;
struct timer_list timer;
struct mmc_request *req;
@@ -463,7 +464,7 @@ static void tifm_sd_check_status(struct tifm_sd *host)
}
}
finish_request:
- tasklet_schedule(&host->finish_tasklet);
+ queue_work(system_bh_wq, &host->finish_work);
}
/* Called from interrupt handler */
@@ -723,9 +724,9 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq)
mmc_request_done(mmc, mrq);
}
-static void tifm_sd_end_cmd(struct tasklet_struct *t)
+static void tifm_sd_end_cmd(struct work_struct *t)
{
- struct tifm_sd *host = from_tasklet(host, t, finish_tasklet);
+ struct tifm_sd *host = from_work(host, t, finish_work);
struct tifm_dev *sock = host->dev;
struct mmc_host *mmc = tifm_get_drvdata(sock);
struct mmc_request *mrq;
@@ -960,7 +961,7 @@ static int tifm_sd_probe(struct tifm_dev *sock)
*/
mmc->max_busy_timeout = TIFM_MMCSD_REQ_TIMEOUT_MS;
- tasklet_setup(&host->finish_tasklet, tifm_sd_end_cmd);
+ INIT_WORK(&host->finish_work, tifm_sd_end_cmd);
timer_setup(&host->timer, tifm_sd_abort, 0);
mmc->ops = &tifm_sd_ops;
@@ -999,7 +1000,7 @@ static void tifm_sd_remove(struct tifm_dev *sock)
writel(0, sock->addr + SOCK_MMCSD_INT_ENABLE);
spin_unlock_irqrestore(&sock->lock, flags);
- tasklet_kill(&host->finish_tasklet);
+ cancel_work_sync(&host->finish_work);
spin_lock_irqsave(&sock->lock, flags);
if (host->req) {
@@ -1009,7 +1010,7 @@ static void tifm_sd_remove(struct tifm_dev *sock)
host->req->cmd->error = -ENOMEDIUM;
if (host->req->stop)
host->req->stop->error = -ENOMEDIUM;
- tasklet_schedule(&host->finish_tasklet);
+ queue_work(system_bh_wq, &host->finish_work);
}
spin_unlock_irqrestore(&sock->lock, flags);
mmc_remove_host(mmc);
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index de56e6534aea..bee13acaa80f 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -21,6 +21,7 @@
#include <linux/scatterlist.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
+#include <linux/workqueue.h>
#define CTL_SD_CMD 0x00
#define CTL_ARG_REG 0x04
@@ -156,7 +157,7 @@ struct tmio_mmc_host {
bool dma_on;
struct dma_chan *chan_rx;
struct dma_chan *chan_tx;
- struct tasklet_struct dma_issue;
+ struct work_struct dma_issue;
struct scatterlist bounce_sg;
u8 *bounce_buf;
diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c
index 93e912afd3ae..51bd2365795b 100644
--- a/drivers/mmc/host/tmio_mmc_core.c
+++ b/drivers/mmc/host/tmio_mmc_core.c
@@ -608,7 +608,7 @@ static void tmio_mmc_cmd_irq(struct tmio_mmc_host *host, unsigned int stat)
} else {
tmio_mmc_disable_mmc_irqs(host,
TMIO_MASK_READOP);
- tasklet_schedule(&host->dma_issue);
+ queue_work(system_bh_wq, &host->dma_issue);
}
} else {
if (!host->dma_on) {
@@ -616,7 +616,7 @@ static void tmio_mmc_cmd_irq(struct tmio_mmc_host *host, unsigned int stat)
} else {
tmio_mmc_disable_mmc_irqs(host,
TMIO_MASK_WRITEOP);
- tasklet_schedule(&host->dma_issue);
+ queue_work(system_bh_wq, &host->dma_issue);
}
}
} else {
diff --git a/drivers/mmc/host/uniphier-sd.c b/drivers/mmc/host/uniphier-sd.c
index 1404989e6151..d1964111c393 100644
--- a/drivers/mmc/host/uniphier-sd.c
+++ b/drivers/mmc/host/uniphier-sd.c
@@ -17,6 +17,7 @@
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/reset.h>
+#include <linux/workqueue.h>
#include "tmio_mmc.h"
@@ -90,9 +91,9 @@ static void uniphier_sd_dma_endisable(struct tmio_mmc_host *host, int enable)
}
/* external DMA engine */
-static void uniphier_sd_external_dma_issue(struct tasklet_struct *t)
+static void uniphier_sd_external_dma_issue(struct work_struct *t)
{
- struct tmio_mmc_host *host = from_tasklet(host, t, dma_issue);
+ struct tmio_mmc_host *host = from_work(host, t, dma_issue);
struct uniphier_sd_priv *priv = uniphier_sd_priv(host);
uniphier_sd_dma_endisable(host, 1);
@@ -199,7 +200,7 @@ static void uniphier_sd_external_dma_request(struct tmio_mmc_host *host,
host->chan_rx = chan;
host->chan_tx = chan;
- tasklet_setup(&host->dma_issue, uniphier_sd_external_dma_issue);
+ INIT_WORK(&host->dma_issue, uniphier_sd_external_dma_issue);
}
static void uniphier_sd_external_dma_release(struct tmio_mmc_host *host)
@@ -236,9 +237,9 @@ static const struct tmio_mmc_dma_ops uniphier_sd_external_dma_ops = {
.dataend = uniphier_sd_external_dma_dataend,
};
-static void uniphier_sd_internal_dma_issue(struct tasklet_struct *t)
+static void uniphier_sd_internal_dma_issue(struct work_struct *t)
{
- struct tmio_mmc_host *host = from_tasklet(host, t, dma_issue);
+ struct tmio_mmc_host *host = from_work(host, t, dma_issue);
unsigned long flags;
spin_lock_irqsave(&host->lock, flags);
@@ -317,7 +318,7 @@ static void uniphier_sd_internal_dma_request(struct tmio_mmc_host *host,
host->chan_tx = (void *)0xdeadbeaf;
- tasklet_setup(&host->dma_issue, uniphier_sd_internal_dma_issue);
+ INIT_WORK(&host->dma_issue, uniphier_sd_internal_dma_issue);
}
static void uniphier_sd_internal_dma_release(struct tmio_mmc_host *host)
diff --git a/drivers/mmc/host/via-sdmmc.c b/drivers/mmc/host/via-sdmmc.c
index ba6044b16e07..2777b773086b 100644
--- a/drivers/mmc/host/via-sdmmc.c
+++ b/drivers/mmc/host/via-sdmmc.c
@@ -12,6 +12,7 @@
#include <linux/interrupt.h>
#include <linux/mmc/host.h>
+#include <linux/workqueue.h>
#define DRV_NAME "via_sdmmc"
@@ -307,7 +308,7 @@ struct via_crdr_mmc_host {
struct sdhcreg pm_sdhc_reg;
struct work_struct carddet_work;
- struct tasklet_struct finish_tasklet;
+ struct work_struct finish_work;
struct timer_list timer;
spinlock_t lock;
@@ -643,7 +644,7 @@ static void via_sdc_finish_data(struct via_crdr_mmc_host *host)
if (data->stop)
via_sdc_send_command(host, data->stop);
else
- tasklet_schedule(&host->finish_tasklet);
+ queue_work(system_bh_wq, &host->finish_work);
}
static void via_sdc_finish_command(struct via_crdr_mmc_host *host)
@@ -653,7 +654,7 @@ static void via_sdc_finish_command(struct via_crdr_mmc_host *host)
host->cmd->error = 0;
if (!host->cmd->data)
- tasklet_schedule(&host->finish_tasklet);
+ queue_work(system_bh_wq, &host->finish_work);
host->cmd = NULL;
}
@@ -682,7 +683,7 @@ static void via_sdc_request(struct mmc_host *mmc, struct mmc_request *mrq)
status = readw(host->sdhc_mmiobase + VIA_CRDR_SDSTATUS);
if (!(status & VIA_CRDR_SDSTS_SLOTG) || host->reject) {
host->mrq->cmd->error = -ENOMEDIUM;
- tasklet_schedule(&host->finish_tasklet);
+ queue_work(system_bh_wq, &host->finish_work);
} else {
via_sdc_send_command(host, mrq->cmd);
}
@@ -848,7 +849,7 @@ static void via_sdc_cmd_isr(struct via_crdr_mmc_host *host, u16 intmask)
host->cmd->error = -EILSEQ;
if (host->cmd->error)
- tasklet_schedule(&host->finish_tasklet);
+ queue_work(system_bh_wq, &host->finish_work);
else if (intmask & VIA_CRDR_SDSTS_CRD)
via_sdc_finish_command(host);
}
@@ -955,16 +956,16 @@ static void via_sdc_timeout(struct timer_list *t)
sdhost->cmd->error = -ETIMEDOUT;
else
sdhost->mrq->cmd->error = -ETIMEDOUT;
- tasklet_schedule(&sdhost->finish_tasklet);
+ queue_work(system_bh_wq, &sdhost->finish_work);
}
}
spin_unlock_irqrestore(&sdhost->lock, flags);
}
-static void via_sdc_tasklet_finish(struct tasklet_struct *t)
+static void via_sdc_work_finish(struct work_struct *t)
{
- struct via_crdr_mmc_host *host = from_tasklet(host, t, finish_tasklet);
+ struct via_crdr_mmc_host *host = from_work(host, t, finish_work);
unsigned long flags;
struct mmc_request *mrq;
@@ -1005,7 +1006,7 @@ static void via_sdc_card_detect(struct work_struct *work)
pr_err("%s: Card removed during transfer!\n",
mmc_hostname(host->mmc));
host->mrq->cmd->error = -ENOMEDIUM;
- tasklet_schedule(&host->finish_tasklet);
+ queue_work(system_bh_wq, &host->finish_work);
}
spin_unlock_irqrestore(&host->lock, flags);
@@ -1051,7 +1052,7 @@ static void via_init_mmc_host(struct via_crdr_mmc_host *host)
INIT_WORK(&host->carddet_work, via_sdc_card_detect);
- tasklet_setup(&host->finish_tasklet, via_sdc_tasklet_finish);
+ INIT_WORK(&host->finish_work, via_sdc_work_finish);
addrbase = host->sdhc_mmiobase;
writel(0x0, addrbase + VIA_CRDR_SDINTMASK);
@@ -1193,7 +1194,7 @@ static void via_sd_remove(struct pci_dev *pcidev)
sdhost->mrq->cmd->error = -ENOMEDIUM;
if (sdhost->mrq->stop)
sdhost->mrq->stop->error = -ENOMEDIUM;
- tasklet_schedule(&sdhost->finish_tasklet);
+ queue_work(system_bh_wq, &sdhost->finish_work);
}
spin_unlock_irqrestore(&sdhost->lock, flags);
@@ -1203,7 +1204,7 @@ static void via_sd_remove(struct pci_dev *pcidev)
del_timer_sync(&sdhost->timer);
- tasklet_kill(&sdhost->finish_tasklet);
+ cancel_work_sync(&sdhost->finish_work);
/* switch off power */
gatt = readb(sdhost->pcictrl_mmiobase + VIA_CRDR_PCICLKGATT);
diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index f0562f712d98..984e380abc71 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -32,6 +32,7 @@
#include <linux/mmc/sd.h>
#include <linux/scatterlist.h>
#include <linux/slab.h>
+#include <linux/workqueue.h>
#include <asm/io.h>
#include <asm/dma.h>
@@ -459,7 +460,7 @@ static void wbsd_empty_fifo(struct wbsd_host *host)
* FIFO threshold interrupts properly.
*/
if ((data->blocks * data->blksz - data->bytes_xfered) < 16)
- tasklet_schedule(&host->fifo_tasklet);
+ queue_work(system_bh_wq, &host->fifo_work);
}
static void wbsd_fill_fifo(struct wbsd_host *host)
@@ -524,7 +525,7 @@ static void wbsd_fill_fifo(struct wbsd_host *host)
* 'FIFO empty' under certain conditions. So we
* need to be a bit more pro-active.
*/
- tasklet_schedule(&host->fifo_tasklet);
+ queue_work(system_bh_wq, &host->fifo_work);
}
static void wbsd_prepare_data(struct wbsd_host *host, struct mmc_data *data)
@@ -746,7 +747,7 @@ static void wbsd_request(struct mmc_host *mmc, struct mmc_request *mrq)
struct mmc_command *cmd;
/*
- * Disable tasklets to avoid a deadlock.
+ * Disable works to avoid a deadlock.
*/
spin_lock_bh(&host->lock);
@@ -821,7 +822,7 @@ static void wbsd_request(struct mmc_host *mmc, struct mmc_request *mrq)
* Dirty fix for hardware bug.
*/
if (host->dma == -1)
- tasklet_schedule(&host->fifo_tasklet);
+ queue_work(system_bh_wq, &host->fifo_work);
spin_unlock_bh(&host->lock);
@@ -961,13 +962,13 @@ static void wbsd_reset_ignore(struct timer_list *t)
* Card status might have changed during the
* blackout.
*/
- tasklet_schedule(&host->card_tasklet);
+ queue_work(system_bh_wq, &host->card_work);
spin_unlock_bh(&host->lock);
}
/*
- * Tasklets
+ * Works
*/
static inline struct mmc_data *wbsd_get_data(struct wbsd_host *host)
@@ -987,9 +988,9 @@ static inline struct mmc_data *wbsd_get_data(struct wbsd_host *host)
return host->mrq->cmd->data;
}
-static void wbsd_tasklet_card(struct tasklet_struct *t)
+static void wbsd_work_card(struct work_struct *t)
{
- struct wbsd_host *host = from_tasklet(host, t, card_tasklet);
+ struct wbsd_host *host = from_work(host, t, card_work);
u8 csr;
int delay = -1;
@@ -1020,7 +1021,7 @@ static void wbsd_tasklet_card(struct tasklet_struct *t)
wbsd_reset(host);
host->mrq->cmd->error = -ENOMEDIUM;
- tasklet_schedule(&host->finish_tasklet);
+ queue_work(system_bh_wq, &host->finish_work);
}
delay = 0;
@@ -1036,9 +1037,9 @@ static void wbsd_tasklet_card(struct tasklet_struct *t)
mmc_detect_change(host->mmc, msecs_to_jiffies(delay));
}
-static void wbsd_tasklet_fifo(struct tasklet_struct *t)
+static void wbsd_work_fifo(struct work_struct *t)
{
- struct wbsd_host *host = from_tasklet(host, t, fifo_tasklet);
+ struct wbsd_host *host = from_work(host, t, fifo_work);
struct mmc_data *data;
spin_lock(&host->lock);
@@ -1060,16 +1061,16 @@ static void wbsd_tasklet_fifo(struct tasklet_struct *t)
*/
if (host->num_sg == 0) {
wbsd_write_index(host, WBSD_IDX_FIFOEN, 0);
- tasklet_schedule(&host->finish_tasklet);
+ queue_work(system_bh_wq, &host->finish_work);
}
end:
spin_unlock(&host->lock);
}
-static void wbsd_tasklet_crc(struct tasklet_struct *t)
+static void wbsd_work_crc(struct work_struct *t)
{
- struct wbsd_host *host = from_tasklet(host, t, crc_tasklet);
+ struct wbsd_host *host = from_work(host, t, crc_work);
struct mmc_data *data;
spin_lock(&host->lock);
@@ -1085,15 +1086,15 @@ static void wbsd_tasklet_crc(struct tasklet_struct *t)
data->error = -EILSEQ;
- tasklet_schedule(&host->finish_tasklet);
+ queue_work(system_bh_wq, &host->finish_work);
end:
spin_unlock(&host->lock);
}
-static void wbsd_tasklet_timeout(struct tasklet_struct *t)
+static void wbsd_work_timeout(struct work_struct *t)
{
- struct wbsd_host *host = from_tasklet(host, t, timeout_tasklet);
+ struct wbsd_host *host = from_work(host, t, timeout_work);
struct mmc_data *data;
spin_lock(&host->lock);
@@ -1109,15 +1110,15 @@ static void wbsd_tasklet_timeout(struct tasklet_struct *t)
data->error = -ETIMEDOUT;
- tasklet_schedule(&host->finish_tasklet);
+ queue_work(system_bh_wq, &host->finish_work);
end:
spin_unlock(&host->lock);
}
-static void wbsd_tasklet_finish(struct tasklet_struct *t)
+static void wbsd_work_finish(struct work_struct *t)
{
- struct wbsd_host *host = from_tasklet(host, t, finish_tasklet);
+ struct wbsd_host *host = from_work(host, t, finish_work);
struct mmc_data *data;
spin_lock(&host->lock);
@@ -1156,18 +1157,18 @@ static irqreturn_t wbsd_irq(int irq, void *dev_id)
host->isr |= isr;
/*
- * Schedule tasklets as needed.
+ * Schedule works as needed.
*/
if (isr & WBSD_INT_CARD)
- tasklet_schedule(&host->card_tasklet);
+ queue_work(system_bh_wq, &host->card_work);
if (isr & WBSD_INT_FIFO_THRE)
- tasklet_schedule(&host->fifo_tasklet);
+ queue_work(system_bh_wq, &host->fifo_work);
if (isr & WBSD_INT_CRC)
- tasklet_hi_schedule(&host->crc_tasklet);
+ queue_work(system_bh_highpri_wq, &host->crc_work);
if (isr & WBSD_INT_TIMEOUT)
- tasklet_hi_schedule(&host->timeout_tasklet);
+ queue_work(system_bh_highpri_wq, &host->timeout_work);
if (isr & WBSD_INT_TC)
- tasklet_schedule(&host->finish_tasklet);
+ queue_work(system_bh_wq, &host->finish_work);
return IRQ_HANDLED;
}
@@ -1443,13 +1444,13 @@ static int wbsd_request_irq(struct wbsd_host *host, int irq)
int ret;
/*
- * Set up tasklets. Must be done before requesting interrupt.
+ * Set up works. Must be done before requesting interrupt.
*/
- tasklet_setup(&host->card_tasklet, wbsd_tasklet_card);
- tasklet_setup(&host->fifo_tasklet, wbsd_tasklet_fifo);
- tasklet_setup(&host->crc_tasklet, wbsd_tasklet_crc);
- tasklet_setup(&host->timeout_tasklet, wbsd_tasklet_timeout);
- tasklet_setup(&host->finish_tasklet, wbsd_tasklet_finish);
+ INIT_WORK(&host->card_work, wbsd_work_card);
+ INIT_WORK(&host->fifo_work, wbsd_work_fifo);
+ INIT_WORK(&host->crc_work, wbsd_work_crc);
+ INIT_WORK(&host->timeout_work, wbsd_work_timeout);
+ INIT_WORK(&host->finish_work, wbsd_work_finish);
/*
* Allocate interrupt.
@@ -1472,11 +1473,11 @@ static void wbsd_release_irq(struct wbsd_host *host)
host->irq = 0;
- tasklet_kill(&host->card_tasklet);
- tasklet_kill(&host->fifo_tasklet);
- tasklet_kill(&host->crc_tasklet);
- tasklet_kill(&host->timeout_tasklet);
- tasklet_kill(&host->finish_tasklet);
+ cancel_work_sync(&host->card_work);
+ cancel_work_sync(&host->fifo_work);
+ cancel_work_sync(&host->crc_work);
+ cancel_work_sync(&host->timeout_work);
+ cancel_work_sync(&host->finish_work);
}
/*
diff --git a/drivers/mmc/host/wbsd.h b/drivers/mmc/host/wbsd.h
index be30b4d8ce4c..942a64a724e4 100644
--- a/drivers/mmc/host/wbsd.h
+++ b/drivers/mmc/host/wbsd.h
@@ -171,11 +171,11 @@ struct wbsd_host
int irq; /* Interrupt */
int dma; /* DMA channel */
- struct tasklet_struct card_tasklet; /* Tasklet structures */
- struct tasklet_struct fifo_tasklet;
- struct tasklet_struct crc_tasklet;
- struct tasklet_struct timeout_tasklet;
- struct tasklet_struct finish_tasklet;
+ struct work_struct card_work; /* Work structures */
+ struct work_struct fifo_work;
+ struct work_struct crc_work;
+ struct work_struct timeout_work;
+ struct work_struct finish_work;
struct timer_list ignore_timer; /* Ignore detection timer */
};
--
2.17.1
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