From d7be828e03969ea7f922f299acb8daa0d8ce7006 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 21 Apr 2005 21:41:33 -0700 Subject: [SPARC64]: Provide a pgprot_noncached() implementation. Signed-off-by: David S. Miller diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h index af9bf17..ae2cd5b 100644 --- a/include/asm-sparc64/pgtable.h +++ b/include/asm-sparc64/pgtable.h @@ -416,6 +416,11 @@ extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from, unsigned long pfn, unsigned long size, pgprot_t prot); +/* Clear virtual and physical cachability, set side-effect bit. */ +#define pgprot_noncached(prot) \ + (__pgprot((pgprot_val(prot) & ~(_PAGE_CP | _PAGE_CV)) | \ + _PAGE_E)) + /* * For sparc32&64, the pfn in io_remap_pfn_range() carries in * its high 4 bits. These macros/functions put it there or get it from there. -- cgit v0.10.2 From b4bca26c0160f48b4eb04f21d31a229832732013 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 21 Apr 2005 21:42:34 -0700 Subject: [SPARC]: Provide generic ioctls in Sparc RTC driver. Provide support for drivers/char/rtc.c ioctls in the Mostek rtc driver as well as the Sparc specific RTCGET and RTCSET. This allows userspace to be much less messy. Currently util-linux and other spots jump through hoops trying various ioctl variants until it hits the right one whatever driver actually being used supports. Eventually all of this should move over to the genrtc.c driver, but not today... While we are here, fix up the register types for sparse. Thanks to Frans Pop for helping point out this issue. Signed-off-by: David S. Miller diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c index 6a717d4..c60785c 100644 --- a/arch/sparc64/kernel/time.c +++ b/arch/sparc64/kernel/time.c @@ -48,7 +48,7 @@ DEFINE_SPINLOCK(mostek_lock); DEFINE_SPINLOCK(rtc_lock); -unsigned long mstk48t02_regs = 0UL; +void * __iomem mstk48t02_regs = 0UL; #ifdef CONFIG_PCI unsigned long ds1287_regs = 0UL; #endif @@ -59,8 +59,8 @@ u64 jiffies_64 = INITIAL_JIFFIES; EXPORT_SYMBOL(jiffies_64); -static unsigned long mstk48t08_regs = 0UL; -static unsigned long mstk48t59_regs = 0UL; +static void * __iomem mstk48t08_regs; +static void * __iomem mstk48t59_regs; static int set_rtc_mmss(unsigned long); @@ -520,7 +520,7 @@ void timer_tick_interrupt(struct pt_regs *regs) /* Kick start a stopped clock (procedure from the Sun NVRAM/hostid FAQ). */ static void __init kick_start_clock(void) { - unsigned long regs = mstk48t02_regs; + void * __iomem regs = mstk48t02_regs; u8 sec, tmp; int i, count; @@ -604,7 +604,7 @@ static void __init kick_start_clock(void) /* Return nonzero if the clock chip battery is low. */ static int __init has_low_battery(void) { - unsigned long regs = mstk48t02_regs; + void * __iomem regs = mstk48t02_regs; u8 data1, data2; spin_lock_irq(&mostek_lock); @@ -623,7 +623,7 @@ static int __init has_low_battery(void) static void __init set_system_time(void) { unsigned int year, mon, day, hour, min, sec; - unsigned long mregs = mstk48t02_regs; + void * __iomem mregs = mstk48t02_regs; #ifdef CONFIG_PCI unsigned long dregs = ds1287_regs; #else @@ -843,7 +843,8 @@ void __init clock_probe(void) !strcmp(model, "m5823")) { ds1287_regs = edev->resource[0].start; } else { - mstk48t59_regs = edev->resource[0].start; + mstk48t59_regs = (void * __iomem) + edev->resource[0].start; mstk48t02_regs = mstk48t59_regs + MOSTEK_48T59_48T02; } break; @@ -865,7 +866,8 @@ try_isa_clock: !strcmp(model, "m5823")) { ds1287_regs = isadev->resource.start; } else { - mstk48t59_regs = isadev->resource.start; + mstk48t59_regs = (void * __iomem) + isadev->resource.start; mstk48t02_regs = mstk48t59_regs + MOSTEK_48T59_48T02; } break; @@ -893,21 +895,24 @@ try_isa_clock: } if(model[5] == '0' && model[6] == '2') { - mstk48t02_regs = (((u64)clk_reg[0].phys_addr) | - (((u64)clk_reg[0].which_io)<<32UL)); + mstk48t02_regs = (void * __iomem) + (((u64)clk_reg[0].phys_addr) | + (((u64)clk_reg[0].which_io)<<32UL)); } else if(model[5] == '0' && model[6] == '8') { - mstk48t08_regs = (((u64)clk_reg[0].phys_addr) | - (((u64)clk_reg[0].which_io)<<32UL)); + mstk48t08_regs = (void * __iomem) + (((u64)clk_reg[0].phys_addr) | + (((u64)clk_reg[0].which_io)<<32UL)); mstk48t02_regs = mstk48t08_regs + MOSTEK_48T08_48T02; } else { - mstk48t59_regs = (((u64)clk_reg[0].phys_addr) | - (((u64)clk_reg[0].which_io)<<32UL)); + mstk48t59_regs = (void * __iomem) + (((u64)clk_reg[0].phys_addr) | + (((u64)clk_reg[0].which_io)<<32UL)); mstk48t02_regs = mstk48t59_regs + MOSTEK_48T59_48T02; } break; } - if (mstk48t02_regs != 0UL) { + if (mstk48t02_regs != NULL) { /* Report a low battery voltage condition. */ if (has_low_battery()) prom_printf("NVRAM: Low battery voltage!\n"); @@ -1087,7 +1092,7 @@ unsigned long long sched_clock(void) static int set_rtc_mmss(unsigned long nowtime) { int real_seconds, real_minutes, chip_minutes; - unsigned long mregs = mstk48t02_regs; + void * __iomem mregs = mstk48t02_regs; #ifdef CONFIG_PCI unsigned long dregs = ds1287_regs; #else diff --git a/drivers/sbus/char/rtc.c b/drivers/sbus/char/rtc.c index bf3273e..49d1cd9 100644 --- a/drivers/sbus/char/rtc.c +++ b/drivers/sbus/char/rtc.c @@ -28,6 +28,42 @@ static int rtc_busy = 0; +/* This is the structure layout used by drivers/char/rtc.c, we + * support that driver's ioctls so that things are less messy in + * userspace. + */ +struct rtc_time_generic { + int tm_sec; + int tm_min; + int tm_hour; + int tm_mday; + int tm_mon; + int tm_year; + int tm_wday; + int tm_yday; + int tm_isdst; +}; +#define RTC_AIE_ON _IO('p', 0x01) /* Alarm int. enable on */ +#define RTC_AIE_OFF _IO('p', 0x02) /* ... off */ +#define RTC_UIE_ON _IO('p', 0x03) /* Update int. enable on */ +#define RTC_UIE_OFF _IO('p', 0x04) /* ... off */ +#define RTC_PIE_ON _IO('p', 0x05) /* Periodic int. enable on */ +#define RTC_PIE_OFF _IO('p', 0x06) /* ... off */ +#define RTC_WIE_ON _IO('p', 0x0f) /* Watchdog int. enable on */ +#define RTC_WIE_OFF _IO('p', 0x10) /* ... off */ +#define RTC_RD_TIME _IOR('p', 0x09, struct rtc_time_generic) /* Read RTC time */ +#define RTC_SET_TIME _IOW('p', 0x0a, struct rtc_time_generic) /* Set RTC time */ +#define RTC_ALM_SET _IOW('p', 0x07, struct rtc_time) /* Set alarm time */ +#define RTC_ALM_READ _IOR('p', 0x08, struct rtc_time) /* Read alarm time */ +#define RTC_IRQP_READ _IOR('p', 0x0b, unsigned long) /* Read IRQ rate */ +#define RTC_IRQP_SET _IOW('p', 0x0c, unsigned long) /* Set IRQ rate */ +#define RTC_EPOCH_READ _IOR('p', 0x0d, unsigned long) /* Read epoch */ +#define RTC_EPOCH_SET _IOW('p', 0x0e, unsigned long) /* Set epoch */ +#define RTC_WKALM_SET _IOW('p', 0x0f, struct rtc_wkalrm)/* Set wakeup alarm*/ +#define RTC_WKALM_RD _IOR('p', 0x10, struct rtc_wkalrm)/* Get wakeup alarm*/ +#define RTC_PLL_GET _IOR('p', 0x11, struct rtc_pll_info) /* Get PLL correction */ +#define RTC_PLL_SET _IOW('p', 0x12, struct rtc_pll_info) /* Set PLL correction */ + /* Retrieve the current date and time from the real time clock. */ static void get_rtc_time(struct rtc_time *t) { @@ -82,29 +118,87 @@ void set_rtc_time(struct rtc_time *t) spin_unlock_irq(&mostek_lock); } +static int put_rtc_time_generic(void __user *argp, struct rtc_time *tm) +{ + struct rtc_time_generic __user *utm = argp; + + if (__put_user(tm->sec, &utm->tm_sec) || + __put_user(tm->min, &utm->tm_min) || + __put_user(tm->hour, &utm->tm_hour) || + __put_user(tm->dom, &utm->tm_mday) || + __put_user(tm->month, &utm->tm_mon) || + __put_user(tm->year, &utm->tm_year) || + __put_user(tm->dow, &utm->tm_wday) || + __put_user(0, &utm->tm_yday) || + __put_user(0, &utm->tm_isdst)) + return -EFAULT; + + return 0; +} + +static int get_rtc_time_generic(struct rtc_time *tm, void __user *argp) +{ + struct rtc_time_generic __user *utm = argp; + + if (__get_user(tm->sec, &utm->tm_sec) || + __get_user(tm->min, &utm->tm_min) || + __get_user(tm->hour, &utm->tm_hour) || + __get_user(tm->dom, &utm->tm_mday) || + __get_user(tm->month, &utm->tm_mon) || + __get_user(tm->year, &utm->tm_year) || + __get_user(tm->dow, &utm->tm_wday)) + return -EFAULT; + + return 0; +} + static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { struct rtc_time rtc_tm; void __user *argp = (void __user *)arg; - switch (cmd) - { + switch (cmd) { + /* No interrupt support, return an error + * compatible with drivers/char/rtc.c + */ + case RTC_AIE_OFF: + case RTC_AIE_ON: + case RTC_PIE_OFF: + case RTC_PIE_ON: + case RTC_UIE_OFF: + case RTC_UIE_ON: + case RTC_IRQP_READ: + case RTC_IRQP_SET: + case RTC_EPOCH_SET: + case RTC_EPOCH_READ: + return -EINVAL; + case RTCGET: + case RTC_RD_TIME: memset(&rtc_tm, 0, sizeof(struct rtc_time)); get_rtc_time(&rtc_tm); - if (copy_to_user(argp, &rtc_tm, sizeof(struct rtc_time))) + if (cmd == RTCGET) { + if (copy_to_user(argp, &rtc_tm, + sizeof(struct rtc_time))) + return -EFAULT; + } else if (put_rtc_time_generic(argp, &rtc_tm)) return -EFAULT; return 0; case RTCSET: + case RTC_SET_TIME: if (!capable(CAP_SYS_TIME)) return -EPERM; - if (copy_from_user(&rtc_tm, argp, sizeof(struct rtc_time))) + if (cmd == RTCSET) { + if (copy_from_user(&rtc_tm, argp, + sizeof(struct rtc_time))) + return -EFAULT; + } else if (get_rtc_time_generic(&rtc_tm, argp)) return -EFAULT; set_rtc_time(&rtc_tm); @@ -164,6 +258,7 @@ static int __init rtc_sun_init(void) printk(KERN_ERR "rtc: unable to get misc minor for Mostek\n"); return error; } + printk("rtc_sun_init: Registered Mostek RTC driver.\n"); return 0; } diff --git a/include/asm-sparc64/mostek.h b/include/asm-sparc64/mostek.h index ccf2f5f..1f9b135 100644 --- a/include/asm-sparc64/mostek.h +++ b/include/asm-sparc64/mostek.h @@ -38,7 +38,7 @@ * * We now deal with physical addresses for I/O to the chip. -DaveM */ -static __inline__ u8 mostek_read(unsigned long addr) +static __inline__ u8 mostek_read(void * __iomem addr) { u8 ret; @@ -48,7 +48,7 @@ static __inline__ u8 mostek_read(unsigned long addr) return ret; } -static __inline__ void mostek_write(unsigned long addr, u8 val) +static __inline__ void mostek_write(void * __iomem addr, u8 val) { __asm__ __volatile__("stba %0, [%1] %2" : /* no outputs */ @@ -67,7 +67,7 @@ static __inline__ void mostek_write(unsigned long addr, u8 val) #define MOSTEK_YEAR 0x07ffUL extern spinlock_t mostek_lock; -extern unsigned long mstk48t02_regs; +extern void *__iomem mstk48t02_regs; /* Control register values. */ #define MSTK_CREG_WRITE 0x80 /* Must set this before placing values. */ -- cgit v0.10.2 From 623f41eb923d7f34888cbd9e4f50a7b1a79d0ae5 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 21 Apr 2005 22:06:13 -0700 Subject: [SPARC64]: In sunsu driver, make sure to fully init chip for kbd/ms We were forgetting to call sunsu_change_speed(). The reason that replugging in the mouse cable "fixes things" is that causes a BREAK interrupt which in turn caused a call to sunsu_change_speed() which would get the chip setup properly. Signed-off-by: David S. Miller diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c index 23d19d3..ddc97c9 100644 --- a/drivers/serial/sunsu.c +++ b/drivers/serial/sunsu.c @@ -1285,6 +1285,7 @@ static struct uart_driver sunsu_reg = { static int __init sunsu_kbd_ms_init(struct uart_sunsu_port *up, int channel) { + int quot, baud; #ifdef CONFIG_SERIO struct serio *serio; #endif @@ -1293,10 +1294,14 @@ static int __init sunsu_kbd_ms_init(struct uart_sunsu_port *up, int channel) up->port.type = PORT_UNKNOWN; up->port.uartclk = (SU_BASE_BAUD * 16); - if (up->su_type == SU_PORT_KBD) + if (up->su_type == SU_PORT_KBD) { up->cflag = B1200 | CS8 | CLOCAL | CREAD; - else + baud = 1200; + } else { up->cflag = B4800 | CS8 | CLOCAL | CREAD; + baud = 4800; + } + quot = up->port.uartclk / (16 * baud); sunsu_autoconfig(up); if (up->port.type == PORT_UNKNOWN) @@ -1337,6 +1342,8 @@ static int __init sunsu_kbd_ms_init(struct uart_sunsu_port *up, int channel) } #endif + sunsu_change_speed(&up->port, up->cflag, 0, quot); + sunsu_startup(&up->port); return 0; } -- cgit v0.10.2 From b179fb8ca57590eeb0a5d6c8dc99f91773f09c73 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 21 Apr 2005 22:18:03 -0700 Subject: [SPARC64]: In sunsab driver, make sure to set the uart timeout. This breaks serial consoles badly. Thanks to Eric Brower for tracking down the problem. Signed-off-by: David S. Miller diff --git a/drivers/serial/sunsab.c b/drivers/serial/sunsab.c index 8caaf2e..39b788d 100644 --- a/drivers/serial/sunsab.c +++ b/drivers/serial/sunsab.c @@ -682,7 +682,8 @@ static void calc_ebrg(int baud, int *n_ret, int *m_ret) /* Internal routine, port->lock is held and local interrupts are disabled. */ static void sunsab_convert_to_sab(struct uart_sunsab_port *up, unsigned int cflag, - unsigned int iflag, int baud) + unsigned int iflag, unsigned int baud, + unsigned int quot) { unsigned int ebrg; unsigned char dafo; @@ -766,6 +767,9 @@ static void sunsab_convert_to_sab(struct uart_sunsab_port *up, unsigned int cfla up->port.ignore_status_mask |= (SAB82532_ISR0_RPF | SAB82532_ISR0_TCD); + uart_update_timeout(&up->port, cflag, + (up->port.uartclk / (16 * quot))); + /* Now bang the new settings into the chip. */ sunsab_cec_wait(up); sunsab_tec_wait(up); @@ -784,10 +788,11 @@ static void sunsab_set_termios(struct uart_port *port, struct termios *termios, { struct uart_sunsab_port *up = (struct uart_sunsab_port *) port; unsigned long flags; - int baud = uart_get_baud_rate(port, termios, old, 0, 4000000); + unsigned int baud = uart_get_baud_rate(port, termios, old, 0, 4000000); + unsigned int quot = uart_get_divisor(port, baud); spin_lock_irqsave(&up->port.lock, flags); - sunsab_convert_to_sab(up, termios->c_cflag, termios->c_iflag, baud); + sunsab_convert_to_sab(up, termios->c_cflag, termios->c_iflag, baud, quot); spin_unlock_irqrestore(&up->port.lock, flags); } @@ -880,7 +885,7 @@ static int sunsab_console_setup(struct console *con, char *options) { struct uart_sunsab_port *up = &sunsab_ports[con->index]; unsigned long flags; - int baud; + unsigned int baud, quot; printk("Console: ttyS%d (SAB82532)\n", (sunsab_reg.minor - 64) + con->index); @@ -926,7 +931,8 @@ static int sunsab_console_setup(struct console *con, char *options) SAB82532_IMR1_XPR; writeb(up->interrupt_mask1, &up->regs->w.imr1); - sunsab_convert_to_sab(up, con->cflag, 0, baud); + quot = uart_get_divisor(&up->port, baud); + sunsab_convert_to_sab(up, con->cflag, 0, baud, quot); sunsab_set_mctrl(&up->port, TIOCM_DTR | TIOCM_RTS); spin_unlock_irqrestore(&up->port.lock, flags); -- cgit v0.10.2