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-rw-r--r--arch/arm/kernel/ecard.c31
-rw-r--r--arch/arm/kernel/ecard.h56
-rw-r--r--arch/arm/kernel/process.c3
-rw-r--r--arch/arm/kernel/time.c4
4 files changed, 79 insertions, 15 deletions
diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c
index f1c0fb97417..bdbd7da9928 100644
--- a/arch/arm/kernel/ecard.c
+++ b/arch/arm/kernel/ecard.c
@@ -40,6 +40,7 @@
#include <linux/device.h>
#include <linux/init.h>
#include <linux/mutex.h>
+#include <linux/kthread.h>
#include <asm/dma.h>
#include <asm/ecard.h>
@@ -50,6 +51,8 @@
#include <asm/mach/irq.h>
#include <asm/tlbflush.h>
+#include "ecard.h"
+
#ifndef CONFIG_ARCH_RPC
#define HAVE_EXPMASK
#endif
@@ -123,7 +126,7 @@ static void ecard_task_reset(struct ecard_request *req)
res = ec->slot_no == 8
? &ec->resource[ECARD_RES_MEMC]
- : ec->type == ECARD_EASI
+ : ec->easi
? &ec->resource[ECARD_RES_EASI]
: &ec->resource[ECARD_RES_IOCSYNC];
@@ -178,7 +181,7 @@ static void ecard_task_readbytes(struct ecard_request *req)
index += 1;
}
} else {
- unsigned long base = (ec->type == ECARD_EASI
+ unsigned long base = (ec->easi
? &ec->resource[ECARD_RES_EASI]
: &ec->resource[ECARD_RES_IOCSYNC])->start;
void __iomem *pbase = (void __iomem *)base;
@@ -263,8 +266,6 @@ static int ecard_init_mm(void)
static int
ecard_task(void * unused)
{
- daemonize("kecardd");
-
/*
* Allocate a mm. We're not a lazy-TLB kernel task since we need
* to set page table entries where the user space would be. Note
@@ -727,7 +728,7 @@ static int ecard_prints(char *buffer, ecard_t *ec)
char *start = buffer;
buffer += sprintf(buffer, " %d: %s ", ec->slot_no,
- ec->type == ECARD_EASI ? "EASI" : " ");
+ ec->easi ? "EASI" : " ");
if (ec->cid.id == 0) {
struct in_chunk_dir incd;
@@ -814,7 +815,7 @@ static struct expansion_card *__init ecard_alloc_card(int type, int slot)
}
ec->slot_no = slot;
- ec->type = type;
+ ec->easi = type == ECARD_EASI;
ec->irq = NO_IRQ;
ec->fiq = NO_IRQ;
ec->dma = NO_DMA;
@@ -825,6 +826,7 @@ static struct expansion_card *__init ecard_alloc_card(int type, int slot)
ec->dev.bus = &ecard_bus_type;
ec->dev.dma_mask = &ec->dma_mask;
ec->dma_mask = (u64)0xffffffff;
+ ec->dev.coherent_dma_mask = ec->dma_mask;
if (slot < 4) {
ec_set_resource(ec, ECARD_RES_MEMC,
@@ -907,7 +909,7 @@ static ssize_t ecard_show_device(struct device *dev, struct device_attribute *at
static ssize_t ecard_show_type(struct device *dev, struct device_attribute *attr, char *buf)
{
struct expansion_card *ec = ECARD_DEV(dev);
- return sprintf(buf, "%s\n", ec->type == ECARD_EASI ? "EASI" : "IOC");
+ return sprintf(buf, "%s\n", ec->easi ? "EASI" : "IOC");
}
static struct device_attribute ecard_dev_attrs[] = {
@@ -1058,13 +1060,14 @@ ecard_probe(int slot, card_type_t type)
*/
static int __init ecard_init(void)
{
- int slot, irqhw, ret;
-
- ret = kernel_thread(ecard_task, NULL, CLONE_KERNEL);
- if (ret < 0) {
- printk(KERN_ERR "Ecard: unable to create kernel thread: %d\n",
- ret);
- return ret;
+ struct task_struct *task;
+ int slot, irqhw;
+
+ task = kthread_run(ecard_task, NULL, "kecardd");
+ if (IS_ERR(task)) {
+ printk(KERN_ERR "Ecard: unable to create kernel thread: %ld\n",
+ PTR_ERR(task));
+ return PTR_ERR(task);
}
printk("Probing expansion cards\n");
diff --git a/arch/arm/kernel/ecard.h b/arch/arm/kernel/ecard.h
new file mode 100644
index 00000000000..d7c2dacf935
--- /dev/null
+++ b/arch/arm/kernel/ecard.h
@@ -0,0 +1,56 @@
+/*
+ * ecard.h
+ *
+ * Copyright 2007 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* Definitions internal to ecard.c - for it's use only!!
+ *
+ * External expansion card header as read from the card
+ */
+struct ex_ecid {
+ unsigned char r_irq:1;
+ unsigned char r_zero:1;
+ unsigned char r_fiq:1;
+ unsigned char r_id:4;
+ unsigned char r_a:1;
+
+ unsigned char r_cd:1;
+ unsigned char r_is:1;
+ unsigned char r_w:2;
+ unsigned char r_r1:4;
+
+ unsigned char r_r2:8;
+
+ unsigned char r_prod[2];
+
+ unsigned char r_manu[2];
+
+ unsigned char r_country;
+
+ unsigned char r_fiqmask;
+ unsigned char r_fiqoff[3];
+
+ unsigned char r_irqmask;
+ unsigned char r_irqoff[3];
+};
+
+/*
+ * Chunk directory entry as read from the card
+ */
+struct ex_chunk_dir {
+ unsigned char r_id;
+ unsigned char r_len[3];
+ unsigned long r_start;
+ union {
+ char string[256];
+ char data[1];
+ } d;
+#define c_id(x) ((x)->r_id)
+#define c_len(x) ((x)->r_len[0]|((x)->r_len[1]<<8)|((x)->r_len[2]<<16))
+#define c_start(x) ((x)->r_start)
+};
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 8afd83d0cbd..5d6e6523598 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -27,6 +27,7 @@
#include <linux/cpu.h>
#include <linux/elfcore.h>
#include <linux/pm.h>
+#include <linux/tick.h>
#include <asm/leds.h>
#include <asm/processor.h>
@@ -159,9 +160,11 @@ void cpu_idle(void)
if (!idle)
idle = default_idle;
leds_event(led_idle_start);
+ tick_nohz_stop_sched_tick();
while (!need_resched())
idle();
leds_event(led_idle_end);
+ tick_nohz_restart_sched_tick();
preempt_enable_no_resched();
schedule();
preempt_disable();
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index f61decb89ba..d0540e4eaf5 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -327,6 +327,7 @@ void restore_time_delta(struct timespec *delta, struct timespec *rtc)
}
EXPORT_SYMBOL(restore_time_delta);
+#ifndef CONFIG_GENERIC_CLOCKEVENTS
/*
* Kernel system timer support.
*/
@@ -340,8 +341,9 @@ void timer_tick(void)
update_process_times(user_mode(get_irq_regs()));
#endif
}
+#endif
-#ifdef CONFIG_PM
+#if defined(CONFIG_PM) && !defined(CONFIG_GENERIC_CLOCKEVENTS)
static int timer_suspend(struct sys_device *dev, pm_message_t state)
{
struct sys_timer *timer = container_of(dev, struct sys_timer, dev);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-02-16 07:44:22 +0000