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| author | David S. Miller <davem@davemloft.net> | 2016-08-18 01:17:32 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-08-18 01:17:32 -0400 |
| commit | 60747ef4d173c2747bf7f0377fb22846cb422195 (patch) | |
| tree | ea0faf33b952495c47909be1400c475a3f3821b0 /include | |
| parent | 484334198f8ce9552e20930fff9408ebf6bcf94d (diff) | |
| parent | 184ca823481c99dadd7d946e5afd4bb921eab30d (diff) | |
| download | linux-60747ef4d173c2747bf7f0377fb22846cb422195.tar.gz linux-60747ef4d173c2747bf7f0377fb22846cb422195.tar.bz2 linux-60747ef4d173c2747bf7f0377fb22846cb422195.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor overlapping changes for both merge conflicts.
Resolution work done by Stephen Rothwell was used
as a reference.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
105 files changed, 2140 insertions, 852 deletions
diff --git a/include/asm-generic/qrwlock.h b/include/asm-generic/qrwlock.h index 54a8e65e18b6..7d026bf27713 100644 --- a/include/asm-generic/qrwlock.h +++ b/include/asm-generic/qrwlock.h @@ -25,7 +25,20 @@ #include <asm-generic/qrwlock_types.h> /* - * Writer states & reader shift and bias + * Writer states & reader shift and bias. + * + * | +0 | +1 | +2 | +3 | + * ----+----+----+----+----+ + * LE | 78 | 56 | 34 | 12 | 0x12345678 + * ----+----+----+----+----+ + * | wr | rd | + * +----+----+----+----+ + * + * ----+----+----+----+----+ + * BE | 12 | 34 | 56 | 78 | 0x12345678 + * ----+----+----+----+----+ + * | rd | wr | + * +----+----+----+----+ */ #define _QW_WAITING 1 /* A writer is waiting */ #define _QW_LOCKED 0xff /* A writer holds the lock */ @@ -134,12 +147,22 @@ static inline void queued_read_unlock(struct qrwlock *lock) } /** + * __qrwlock_write_byte - retrieve the write byte address of a queue rwlock + * @lock : Pointer to queue rwlock structure + * Return: the write byte address of a queue rwlock + */ +static inline u8 *__qrwlock_write_byte(struct qrwlock *lock) +{ + return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN); +} + +/** * queued_write_unlock - release write lock of a queue rwlock * @lock : Pointer to queue rwlock structure */ static inline void queued_write_unlock(struct qrwlock *lock) { - smp_store_release((u8 *)&lock->cnts, 0); + smp_store_release(__qrwlock_write_byte(lock), 0); } /* diff --git a/include/asm-generic/rtc.h b/include/asm-generic/rtc.h deleted file mode 100644 index 4e3b6558331e..000000000000 --- a/include/asm-generic/rtc.h +++ /dev/null @@ -1,247 +0,0 @@ -/* - * include/asm-generic/rtc.h - * - * Author: Tom Rini <trini@mvista.com> - * - * Based on: - * drivers/char/rtc.c - * - * Please read the COPYING file for all license details. - */ - -#ifndef __ASM_RTC_H__ -#define __ASM_RTC_H__ - -#include <linux/mc146818rtc.h> -#include <linux/rtc.h> -#include <linux/bcd.h> -#include <linux/delay.h> -#ifdef CONFIG_ACPI -#include <linux/acpi.h> -#endif - -#define RTC_PIE 0x40 /* periodic interrupt enable */ -#define RTC_AIE 0x20 /* alarm interrupt enable */ -#define RTC_UIE 0x10 /* update-finished interrupt enable */ - -/* some dummy definitions */ -#define RTC_BATT_BAD 0x100 /* battery bad */ -#define RTC_SQWE 0x08 /* enable square-wave output */ -#define RTC_DM_BINARY 0x04 /* all time/date values are BCD if clear */ -#define RTC_24H 0x02 /* 24 hour mode - else hours bit 7 means pm */ -#define RTC_DST_EN 0x01 /* auto switch DST - works f. USA only */ - -/* - * Returns true if a clock update is in progress - */ -static inline unsigned char rtc_is_updating(void) -{ - unsigned char uip; - unsigned long flags; - - spin_lock_irqsave(&rtc_lock, flags); - uip = (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP); - spin_unlock_irqrestore(&rtc_lock, flags); - return uip; -} - -static inline unsigned int __get_rtc_time(struct rtc_time *time) -{ - unsigned char ctrl; - unsigned long flags; - unsigned char century = 0; - -#ifdef CONFIG_MACH_DECSTATION - unsigned int real_year; -#endif - - /* - * read RTC once any update in progress is done. The update - * can take just over 2ms. We wait 20ms. There is no need to - * to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP. - * If you need to know *exactly* when a second has started, enable - * periodic update complete interrupts, (via ioctl) and then - * immediately read /dev/rtc which will block until you get the IRQ. - * Once the read clears, read the RTC time (again via ioctl). Easy. - */ - if (rtc_is_updating()) - mdelay(20); - - /* - * Only the values that we read from the RTC are set. We leave - * tm_wday, tm_yday and tm_isdst untouched. Even though the - * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated - * by the RTC when initially set to a non-zero value. - */ - spin_lock_irqsave(&rtc_lock, flags); - time->tm_sec = CMOS_READ(RTC_SECONDS); - time->tm_min = CMOS_READ(RTC_MINUTES); - time->tm_hour = CMOS_READ(RTC_HOURS); - time->tm_mday = CMOS_READ(RTC_DAY_OF_MONTH); - time->tm_mon = CMOS_READ(RTC_MONTH); - time->tm_year = CMOS_READ(RTC_YEAR); -#ifdef CONFIG_MACH_DECSTATION - real_year = CMOS_READ(RTC_DEC_YEAR); -#endif -#ifdef CONFIG_ACPI - if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID && - acpi_gbl_FADT.century) - century = CMOS_READ(acpi_gbl_FADT.century); -#endif - ctrl = CMOS_READ(RTC_CONTROL); - spin_unlock_irqrestore(&rtc_lock, flags); - - if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD) - { - time->tm_sec = bcd2bin(time->tm_sec); - time->tm_min = bcd2bin(time->tm_min); - time->tm_hour = bcd2bin(time->tm_hour); - time->tm_mday = bcd2bin(time->tm_mday); - time->tm_mon = bcd2bin(time->tm_mon); - time->tm_year = bcd2bin(time->tm_year); - century = bcd2bin(century); - } - -#ifdef CONFIG_MACH_DECSTATION - time->tm_year += real_year - 72; -#endif - - if (century) - time->tm_year += (century - 19) * 100; - - /* - * Account for differences between how the RTC uses the values - * and how they are defined in a struct rtc_time; - */ - if (time->tm_year <= 69) - time->tm_year += 100; - - time->tm_mon--; - - return RTC_24H; -} - -#ifndef get_rtc_time -#define get_rtc_time __get_rtc_time -#endif - -/* Set the current date and time in the real time clock. */ -static inline int __set_rtc_time(struct rtc_time *time) -{ - unsigned long flags; - unsigned char mon, day, hrs, min, sec; - unsigned char save_control, save_freq_select; - unsigned int yrs; -#ifdef CONFIG_MACH_DECSTATION - unsigned int real_yrs, leap_yr; -#endif - unsigned char century = 0; - - yrs = time->tm_year; - mon = time->tm_mon + 1; /* tm_mon starts at zero */ - day = time->tm_mday; - hrs = time->tm_hour; - min = time->tm_min; - sec = time->tm_sec; - - if (yrs > 255) /* They are unsigned */ - return -EINVAL; - - spin_lock_irqsave(&rtc_lock, flags); -#ifdef CONFIG_MACH_DECSTATION - real_yrs = yrs; - leap_yr = ((!((yrs + 1900) % 4) && ((yrs + 1900) % 100)) || - !((yrs + 1900) % 400)); - yrs = 72; - - /* - * We want to keep the year set to 73 until March - * for non-leap years, so that Feb, 29th is handled - * correctly. - */ - if (!leap_yr && mon < 3) { - real_yrs--; - yrs = 73; - } -#endif - -#ifdef CONFIG_ACPI - if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID && - acpi_gbl_FADT.century) { - century = (yrs + 1900) / 100; - yrs %= 100; - } -#endif - - /* These limits and adjustments are independent of - * whether the chip is in binary mode or not. - */ - if (yrs > 169) { - spin_unlock_irqrestore(&rtc_lock, flags); - return -EINVAL; - } - - if (yrs >= 100) - yrs -= 100; - - if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) - || RTC_ALWAYS_BCD) { - sec = bin2bcd(sec); - min = bin2bcd(min); - hrs = bin2bcd(hrs); - day = bin2bcd(day); - mon = bin2bcd(mon); - yrs = bin2bcd(yrs); - century = bin2bcd(century); - } - - save_control = CMOS_READ(RTC_CONTROL); - CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL); - save_freq_select = CMOS_READ(RTC_FREQ_SELECT); - CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT); - -#ifdef CONFIG_MACH_DECSTATION - CMOS_WRITE(real_yrs, RTC_DEC_YEAR); -#endif - CMOS_WRITE(yrs, RTC_YEAR); - CMOS_WRITE(mon, RTC_MONTH); - CMOS_WRITE(day, RTC_DAY_OF_MONTH); - CMOS_WRITE(hrs, RTC_HOURS); - CMOS_WRITE(min, RTC_MINUTES); |
