redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

x86: HPET_MSI Basic HPET_MSI setup code, cleanups 

small style cleanups.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
hifive-unleashed-5.1
Ingo Molnar 2008-09-06 14:19:17 +02:00
parent 58ac1e76ce
commit 4588c1f035
1 changed files with 25 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
arch/x86/kernel/hpet.c
View File

@ -1,39 +1,39 @@
#include <linux/clocksource.h>
#include <linux/clockchips.h>
#include <linux/interrupt.h>
#include <linux/sysdev.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/hpet.h>
#include <linux/init.h>
#include <linux/sysdev.h>
#include <linux/pm.h>
#include <linux/interrupt.h>
#include <linux/cpu.h>
#include <linux/pm.h>
#include <linux/io.h>
#include <asm/fixmap.h>
#include <asm/hpet.h>
#include <asm/i8253.h>
#include <asm/io.h>
#include <asm/hpet.h>
#define HPET_MASK CLOCKSOURCE_MASK(32)
#define HPET_SHIFT 22
#define HPET_MASK CLOCKSOURCE_MASK(32)
#define HPET_SHIFT 22
/* FSEC = 10^-15
NSEC = 10^-9 */
#define FSEC_PER_NSEC 1000000L
#define FSEC_PER_NSEC 1000000L
/*
* HPET address is set in acpi/boot.c, when an ACPI entry exists
*/
unsigned long hpet_address;
static void __iomem *hpet_virt_address;
unsigned long hpet_address;
static void __iomem *hpet_virt_address;
struct hpet_dev {
struct clock_event_device evt;
unsigned int num;
int cpu;
unsigned int irq;
unsigned int flags;
char name[10];
struct clock_event_device evt;
unsigned int num;
int cpu;
unsigned int irq;
unsigned int flags;
char name[10];
};
unsigned long hpet_readl(unsigned long a)
@ -70,7 +70,7 @@ static inline void hpet_clear_mapping(void)
static int boot_hpet_disable;
int hpet_force_user;
static int __init hpet_setup(char* str)
static int __init hpet_setup(char *str)
{
if (str) {
if (!strncmp("disable", str, 7))
@ -91,7 +91,7 @@ __setup("nohpet", disable_hpet);
static inline int is_hpet_capable(void)
{
return (!boot_hpet_disable && hpet_address);
return !boot_hpet_disable && hpet_address;
}
/*
@ -122,10 +122,10 @@ static void hpet_reserve_platform_timers(unsigned long id)
nrtimers = ((id & HPET_ID_NUMBER) >> HPET_ID_NUMBER_SHIFT) + 1;
memset(&hd, 0, sizeof (hd));
hd.hd_phys_address = hpet_address;
hd.hd_address = hpet;
hd.hd_nirqs = nrtimers;
memset(&hd, 0, sizeof(hd));
hd.hd_phys_address = hpet_address;
hd.hd_address = hpet;
hd.hd_nirqs = nrtimers;
hpet_reserve_timer(&hd, 0);
#ifdef CONFIG_HPET_EMULATE_RTC
@ -141,8 +141,8 @@ static void hpet_reserve_platform_timers(unsigned long id)
hd.hd_irq[1] = HPET_LEGACY_RTC;
for (i = 2; i < nrtimers; timer++, i++) {
hd.hd_irq[i] = (readl(&timer->hpet_config) & Tn_INT_ROUTE_CNF_MASK) >>
Tn_INT_ROUTE_CNF_SHIFT;
hd.hd_irq[i] = (readl(&timer->hpet_config) &
Tn_INT_ROUTE_CNF_MASK) >> Tn_INT_ROUTE_CNF_SHIFT;
}
hpet_alloc(&hd);
@ -244,7 +244,7 @@ static void hpet_set_mode(enum clock_event_mode mode,
unsigned long cfg, cmp, now;
uint64_t delta;
switch(mode) {
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
delta = ((uint64_t)(NSEC_PER_SEC/HZ)) * evt->mult;
delta >>= evt->shift;