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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

Browse Source 
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC]: Fix O_CLOEXEC values.
  [SPARC32]: Fix modular build of floppy driver.
  [SOUND] CS4231 SBus: Two fixes.
  [CG6]: fix memory size detection
  [SPARC64]: Add missing dma_sync_single_range_for_*().
This commit is contained in:
Linus Torvalds 2007-08-03 14:58:08 -07:00
commit 1a3f2ea336
10 changed files with 105 additions and 84 deletions
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7
arch/sparc/kernel/entry.S
View File

@ -1,7 +1,6 @@
/* $Id: entry.S,v 1.170 2001/11/13 00:57:05 davem Exp $
* arch/sparc/kernel/entry.S: Sparc trap low-level entry points.
/* arch/sparc/kernel/entry.S: Sparc trap low-level entry points.
*
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
* Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net)
* Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx)
* Copyright (C) 1996-1999 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
@ -129,7 +128,7 @@ trap_low:
RESTORE_ALL
#endif
#ifdef CONFIG_BLK_DEV_FD
#if defined(CONFIG_BLK_DEV_FD) || defined(CONFIG_BLK_DEV_FD_MODULE)
.text
.align 4
.globl floppy_hardint

84
arch/sparc/kernel/irq.c
View File

@ -351,34 +351,14 @@ void handler_irq(int irq, struct pt_regs * regs)
set_irq_regs(old_regs);
}
#ifdef CONFIG_BLK_DEV_FD
extern void floppy_interrupt(int irq, void *dev_id);
void sparc_floppy_irq(int irq, void *dev_id, struct pt_regs *regs)
{
struct pt_regs *old_regs;
int cpu = smp_processor_id();
old_regs = set_irq_regs(regs);
disable_pil_irq(irq);
irq_enter();
kstat_cpu(cpu).irqs[irq]++;
floppy_interrupt(irq, dev_id);
irq_exit();
enable_pil_irq(irq);
set_irq_regs(old_regs);
// XXX Eek, it's totally changed with preempt_count() and such
// if (softirq_pending(cpu))
// do_softirq();
}
#endif
#if defined(CONFIG_BLK_DEV_FD) || defined(CONFIG_BLK_DEV_FD_MODULE)
/* Fast IRQs on the Sparc can only have one routine attached to them,
* thus no sharing possible.
*/
int request_fast_irq(unsigned int irq,
irq_handler_t handler,
unsigned long irqflags, const char *devname)
static int request_fast_irq(unsigned int irq,
void (*handler)(void),
unsigned long irqflags, const char *devname)
{
struct irqaction *action;
unsigned long flags;
@ -457,7 +437,6 @@ int request_fast_irq(unsigned int irq,
*/
flush_cache_all();
action->handler = handler;
action->flags = irqflags;
cpus_clear(action->mask);
action->name = devname;
@ -475,6 +454,61 @@ out:
return ret;
}
/* These variables are used to access state from the assembler
* interrupt handler, floppy_hardint, so we cannot put these in
* the floppy driver image because that would not work in the
* modular case.
*/
volatile unsigned char *fdc_status;
EXPORT_SYMBOL(fdc_status);
char *pdma_vaddr;
EXPORT_SYMBOL(pdma_vaddr);
unsigned long pdma_size;
EXPORT_SYMBOL(pdma_size);
volatile int doing_pdma;
EXPORT_SYMBOL(doing_pdma);
char *pdma_base;
EXPORT_SYMBOL(pdma_base);
unsigned long pdma_areasize;
EXPORT_SYMBOL(pdma_areasize);
extern void floppy_hardint(void);
static irqreturn_t (*floppy_irq_handler)(int irq, void *dev_id);
void sparc_floppy_irq(int irq, void *dev_id, struct pt_regs *regs)
{
struct pt_regs *old_regs;
int cpu = smp_processor_id();
old_regs = set_irq_regs(regs);
disable_pil_irq(irq);
irq_enter();
kstat_cpu(cpu).irqs[irq]++;
floppy_irq_handler(irq, dev_id);
irq_exit();
enable_pil_irq(irq);
set_irq_regs(old_regs);
// XXX Eek, it's totally changed with preempt_count() and such
// if (softirq_pending(cpu))
// do_softirq();
}
int sparc_floppy_request_irq(int irq, unsigned long flags,
irqreturn_t (*irq_handler)(int irq, void *))
{
floppy_irq_handler = irq_handler;
return request_fast_irq(irq, floppy_hardint, flags, "floppy");
}
EXPORT_SYMBOL(sparc_floppy_request_irq);
#endif
int request_irq(unsigned int irq,
irq_handler_t handler,
unsigned long irqflags, const char * devname, void *dev_id)

1
arch/sparc/kernel/sparc_ksyms.c
View File

@ -143,7 +143,6 @@ EXPORT_SYMBOL(mstk48t02_regs);
EXPORT_SYMBOL(set_auxio);
EXPORT_SYMBOL(get_auxio);
#endif
EXPORT_SYMBOL(request_fast_irq);
EXPORT_SYMBOL(io_remap_pfn_range);
/* P3: iounit_xxx may be needed, sun4d users */
/* EXPORT_SYMBOL(iounit_map_dma_init); */

5
drivers/video/cg6.c
View File

@ -677,6 +677,7 @@ static int __devinit cg6_probe(struct of_device *op, const struct of_device_id *
struct fb_info *info;
struct cg6_par *par;
int linebytes, err;
int dblbuf;
info = framebuffer_alloc(sizeof(struct cg6_par), &op->dev);
@ -698,7 +699,9 @@ static int __devinit cg6_probe(struct of_device *op, const struct of_device_id *
linebytes = of_getintprop_default(dp, "linebytes",
info->var.xres);
par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);
if (of_find_property(dp, "dblbuf", NULL))
dblbuf = of_getintprop_default(dp, "dblbuf", 0);
if (dblbuf)
par->fbsize *= 4;
par->fbc = of_ioremap(&op->resource[0], CG6_FBC_OFFSET,

2
include/asm-sparc/fcntl.h
View File

@ -16,6 +16,7 @@
#define O_LARGEFILE 0x40000
#define O_DIRECT 0x100000 /* direct disk access hint */
#define O_NOATIME 0x200000
#define O_CLOEXEC 0x400000
#define F_GETOWN 5 /* for sockets. */
#define F_SETOWN 6 /* for sockets. */
@ -31,6 +32,5 @@
#define __ARCH_FLOCK_PAD short __unused;
#define __ARCH_FLOCK64_PAD short __unused;
#include <asm-generic/fcntl.h>
#endif

20
include/asm-sparc/floppy.h
View File

@ -48,7 +48,7 @@ struct sun_flpy_controller {
/* You'll only ever find one controller on a SparcStation anyways. */
static struct sun_flpy_controller *sun_fdc = NULL;
volatile unsigned char *fdc_status;
extern volatile unsigned char *fdc_status;
struct sun_floppy_ops {
unsigned char (*fd_inb)(int port);
@ -225,13 +225,13 @@ static void sun_82077_fd_outb(unsigned char value, int port)
* underruns. If non-zero, doing_pdma encodes the direction of
* the transfer for debugging. 1=read 2=write
*/
char *pdma_vaddr;
unsigned long pdma_size;
volatile int doing_pdma = 0;
extern char *pdma_vaddr;
extern unsigned long pdma_size;
extern volatile int doing_pdma;
/* This is software state */
char *pdma_base = NULL;
unsigned long pdma_areasize;
extern char *pdma_base;
extern unsigned long pdma_areasize;
/* Common routines to all controller types on the Sparc. */
static __inline__ void virtual_dma_init(void)
@ -281,7 +281,8 @@ static __inline__ void sun_fd_enable_dma(void)
}
/* Our low-level entry point in arch/sparc/kernel/entry.S */
irqreturn_t floppy_hardint(int irq, void *unused);
extern int sparc_floppy_request_irq(int irq, unsigned long flags,
irqreturn_t (*irq_handler)(int irq, void *));
static int sun_fd_request_irq(void)
{
@ -290,8 +291,9 @@ static int sun_fd_request_irq(void)
if(!once) {
once = 1;
error = request_fast_irq(FLOPPY_IRQ, floppy_hardint,
IRQF_DISABLED, "floppy");
error = sparc_floppy_request_irq(FLOPPY_IRQ,
IRQF_DISABLED,
floppy_interrupt);
return ((error == 0) ? 0 : -1);
} else return 0;
}

7
include/asm-sparc/irq.h
View File

@ -1,7 +1,6 @@
/* $Id: irq.h,v 1.32 2000/08/26 02:42:28 anton Exp $
* irq.h: IRQ registers on the Sparc.
/* irq.h: IRQ registers on the Sparc.
*
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
* Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net)
*/
#ifndef _SPARC_IRQ_H
@ -13,6 +12,4 @@
#define irq_canonicalize(irq) (irq)
extern int request_fast_irq(unsigned int irq, irq_handler_t handler, unsigned long flags, __const__ char *devname);
#endif

19
include/asm-sparc64/dma-mapping.h
View File

@ -108,6 +108,25 @@ static inline void dma_sync_single_for_device(struct device *dev,
dma_ops->sync_single_for_device(dev, dma_handle, size, direction);
}
static inline void dma_sync_single_range_for_cpu(struct device *dev,
dma_addr_t dma_handle,
unsigned long offset,
size_t size,
enum dma_data_direction direction)
{
dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction);
}
static inline void dma_sync_single_range_for_device(struct device *dev,
dma_addr_t dma_handle,
unsigned long offset,
size_t size,
enum dma_data_direction direction)
{
dma_sync_single_for_device(dev, dma_handle+offset, size, direction);
}
static inline void dma_sync_sg_for_cpu(struct device *dev,
struct scatterlist *sg, int nelems,
enum dma_data_direction direction)

2
include/asm-sparc64/fcntl.h
View File

@ -16,7 +16,7 @@
#define O_LARGEFILE 0x40000
#define O_DIRECT 0x100000 /* direct disk access hint */
#define O_NOATIME 0x200000
#define O_CLOEXEC 0x400000
#define F_GETOWN 5 /* for sockets. */
#define F_SETOWN 6 /* for sockets. */

42
sound/sparc/cs4231.c
View File

@ -74,7 +74,6 @@ struct cs4231_dma_control {
void (*enable)(struct cs4231_dma_control *dma_cont, int on);
int (*request)(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len);
unsigned int (*address)(struct cs4231_dma_control *dma_cont);
void (*reset)(struct snd_cs4231 *chip);
void (*preallocate)(struct snd_cs4231 *chip, struct snd_pcm *pcm);
#ifdef EBUS_SUPPORT
struct ebus_dma_info ebus_info;
@ -1214,10 +1213,6 @@ static int __init snd_cs4231_probe(struct snd_cs4231 *chip)
spin_lock_irqsave(&chip->lock, flags);
/* Reset DMA engine (sbus only). */
chip->p_dma.reset(chip);
__cs4231_readb(chip, CS4231P(chip, STATUS)); /* clear any pendings IRQ */
__cs4231_writeb(chip, 0, CS4231P(chip, STATUS));
mb();
@ -1861,14 +1856,13 @@ static void sbus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
if (!on) {
sbus_writel(0, base->regs + base->dir + APCNC);
sbus_writel(0, base->regs + base->dir + APCNVA);
sbus_writel(0, base->regs + base->dir + APCC);
sbus_writel(0, base->regs + base->dir + APCVA);
if ( base->dir == APC_PLAY ) {
sbus_writel(0, base->regs + base->dir + APCC);
sbus_writel(0, base->regs + base->dir + APCVA);
}
/* ACK any APC interrupts. */
csr = sbus_readl(base->regs + APCCSR);
sbus_writel(csr, base->regs + APCCSR);
udelay(1200);
}
udelay(1000);
csr = sbus_readl(base->regs + APCCSR);
shift = 0;
if ( base->dir == APC_PLAY )
@ -1894,23 +1888,6 @@ static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont)
return sbus_readl(base->regs + base->dir + APCVA);
}
static void sbus_dma_reset(struct snd_cs4231 *chip)
{
sbus_writel(APC_CHIP_RESET, chip->port + APCCSR);
sbus_writel(0x00, chip->port + APCCSR);
sbus_writel(sbus_readl(chip->port + APCCSR) | APC_CDC_RESET,
chip->port + APCCSR);
udelay(20);
sbus_writel(sbus_readl(chip->port + APCCSR) & ~APC_CDC_RESET,
chip->port + APCCSR);
sbus_writel(sbus_readl(chip->port + APCCSR) | (APC_XINT_ENA |
APC_XINT_PENA |
APC_XINT_CENA),
chip->port + APCCSR);
}
static void sbus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
{
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_SBUS,
@ -1986,14 +1963,12 @@ static int __init snd_cs4231_sbus_create(struct snd_card *card,
chip->p_dma.enable = sbus_dma_enable;
chip->p_dma.request = sbus_dma_request;
chip->p_dma.address = sbus_dma_addr;
chip->p_dma.reset = sbus_dma_reset;
chip->p_dma.preallocate = sbus_dma_preallocate;
chip->c_dma.prepare = sbus_dma_prepare;
chip->c_dma.enable = sbus_dma_enable;
chip->c_dma.request = sbus_dma_request;
chip->c_dma.address = sbus_dma_addr;
chip->c_dma.reset = sbus_dma_reset;
chip->c_dma.preallocate = sbus_dma_preallocate;
if (request_irq(sdev->irqs[0], snd_cs4231_sbus_interrupt,
@ -2087,11 +2062,6 @@ static unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont)
return ebus_dma_addr(&dma_cont->ebus_info);
}
static void _ebus_dma_reset(struct snd_cs4231 *chip)
{
return;
}
static void _ebus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
{
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
@ -2171,14 +2141,12 @@ static int __init snd_cs4231_ebus_create(struct snd_card *card,
chip->p_dma.enable = _ebus_dma_enable;
chip->p_dma.request = _ebus_dma_request;
chip->p_dma.address = _ebus_dma_addr;
chip->p_dma.reset = _ebus_dma_reset;
chip->p_dma.preallocate = _ebus_dma_preallocate;
chip->c_dma.prepare = _ebus_dma_prepare;
chip->c_dma.enable = _ebus_dma_enable;
chip->c_dma.request = _ebus_dma_request;
chip->c_dma.address = _ebus_dma_addr;
chip->c_dma.reset = _ebus_dma_reset;
chip->c_dma.preallocate = _ebus_dma_preallocate;
chip->port = ioremap(edev->resource[0].start, 0x10);