Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: SH-4A UBC support sh: interrupt exception handling rework sh: Default enable R7780RP IRQs. sh: Zero-out coherent buffer in consistent_alloc(). sh: Convert IPR-IRQ to IRQ chip. sh: Convert INTC2 IRQ handler to irq_chip. sh: Fix pr_debug statements for sh4 sh: Convert r7780rp IRQ handler to IRQ chip. sh: Updates for IRQ handler changes. sh: Kill off timer_ops get_frequency(). sh: First step at generic timeofday support.
mthuurne · Oct 12, 2006 · 9eb2007 · 9eb2007
2 parents 8770c01 + 8ae91b9
commit 9eb2007
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Showing 32 changed files with 249 additions and 1,100 deletions.
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
@@ -45,6 +45,9 @@ config GENERIC_CALIBRATE_DELAY
 config GENERIC_IOMAP
 	bool
 
+config GENERIC_TIME
+	def_bool n
+
 config ARCH_MAY_HAVE_PC_FDC
 	bool
 
@@ -357,6 +360,7 @@ config CPU_HAS_SR_RB
 endmenu
 
 menu "Timer support"
+depends on !GENERIC_TIME
 
 config SH_TMU
 	bool "TMU timer support"

diff --git a/arch/sh/boards/hp6xx/hp6xx_apm.c b/arch/sh/boards/hp6xx/hp6xx_apm.c
@@ -83,7 +83,7 @@ static int hp6x0_apm_get_info(char *buf, char **start, off_t fpos, int length)
 	return p - buf;
 }
 
-static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev, struct pt_regs *regs)
+static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev)
 {
 	if (!apm_suspended)
 		apm_queue_event(APM_USER_SUSPEND);
@@ -96,7 +96,7 @@ static int __init hp6x0_apm_init(void)
 	int ret;
 
 	ret = request_irq(HP680_BTN_IRQ, hp6x0_apm_interrupt,
-			  SA_INTERRUPT, MODNAME, 0);
+			  IRQF_DISABLED, MODNAME, 0);
 	if (unlikely(ret < 0)) {
 		printk(KERN_ERR MODNAME ": IRQ %d request failed\n",
 		       HP680_BTN_IRQ);

diff --git a/arch/sh/boards/landisk/landisk_pwb.c b/arch/sh/boards/landisk/landisk_pwb.c
@@ -135,7 +135,7 @@ static int swdrv_write(struct file *filp, const char *buff, size_t count,
 	return count;
 }
 
-static irqreturn_t sw_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t sw_interrupt(int irq, void *dev_id)
 {
 	landisk_btn = (0x0ff & (~ctrl_inb(PA_STATUS)));
 	disable_irq(IRQ_BUTTON);

diff --git a/arch/sh/boards/mpc1211/setup.c b/arch/sh/boards/mpc1211/setup.c
@@ -69,7 +69,6 @@ static void __init pci_write_config(unsigned long busNo,
 
 static unsigned char m_irq_mask = 0xfb;
 static unsigned char s_irq_mask = 0xff;
-volatile unsigned long irq_err_count;
 
 static void disable_mpc1211_irq(unsigned int irq)
 {
@@ -118,7 +117,7 @@ static void mask_and_ack_mpc1211(unsigned int irq)
 	if(irq < 8) {
 		if(m_irq_mask & (1<<irq)){
 		  if(!mpc1211_irq_real(irq)){
-		    irq_err_count++;
+		    atomic_inc(&irq_err_count)
 		    printk("spurious 8259A interrupt: IRQ %x\n",irq);
 		   }
 		} else {
@@ -131,7 +130,7 @@ static void mask_and_ack_mpc1211(unsigned int irq)
 	} else {
 		if(s_irq_mask & (1<<(irq - 8))){
 		  if(!mpc1211_irq_real(irq)){
-		    irq_err_count++;
+		    atomic_inc(&irq_err_count);
 		    printk("spurious 8259A interrupt: IRQ %x\n",irq);
 		  }
 		} else {

diff --git a/arch/sh/boards/renesas/r7780rp/irq.c b/arch/sh/boards/renesas/r7780rp/irq.c
@@ -1,115 +1,54 @@
 /*
- * linux/arch/sh/boards/renesas/r7780rp/irq.c
- *
- * Copyright (C) 2000  Kazumoto Kojima
- *
  * Renesas Solutions Highlander R7780RP-1 Support.
  *
- * Modified for R7780RP-1 by
- * Atom Create Engineering Co., Ltd. 2002.
+ * Copyright (C) 2002  Atom Create Engineering Co., Ltd.
+ * Copyright (C) 2006  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/r7780rp/r7780rp.h>
 
 #ifdef CONFIG_SH_R7780MP
 static int mask_pos[] = {12, 11, 9, 14, 15, 8, 13, 6, 5, 4, 3, 2, 0, 0, 1, 0};
 #else
 static int mask_pos[] = {15, 14, 13, 12, 11, 10, 9, 8, 7, 5, 6, 4, 0, 1, 2, 0};
 #endif
 
-static void enable_r7780rp_irq(unsigned int irq);
-static void disable_r7780rp_irq(unsigned int irq);
-
-/* shutdown is same as "disable" */
-#define shutdown_r7780rp_irq disable_r7780rp_irq
-
-static void ack_r7780rp_irq(unsigned int irq);
-static void end_r7780rp_irq(unsigned int irq);
-
-static unsigned int startup_r7780rp_irq(unsigned int irq)
-{
-	enable_r7780rp_irq(irq);
-	return 0; /* never anything pending */
-}
-
-static void disable_r7780rp_irq(unsigned int irq)
-{
-	unsigned short val;
-	unsigned short mask = 0xffff ^ (0x0001 << mask_pos[irq]);
-
-	/* Set the priority in IPR to 0 */
-	val = ctrl_inw(IRLCNTR1);
-	val &= mask;
-	ctrl_outw(val, IRLCNTR1);
-}
-
 static void enable_r7780rp_irq(unsigned int irq)
 {
-	unsigned short val;
-	unsigned short value = (0x0001 << mask_pos[irq]);
-
 	/* Set priority in IPR back to original value */
-	val = ctrl_inw(IRLCNTR1);
-	val |= value;
-	ctrl_outw(val, IRLCNTR1);
-}
-
-static void ack_r7780rp_irq(unsigned int irq)
-{
-	disable_r7780rp_irq(irq);
+	ctrl_outw(ctrl_inw(IRLCNTR1) | (1 << mask_pos[irq]), IRLCNTR1);
 }
 
-static void end_r7780rp_irq(unsigned int irq)
+static void disable_r7780rp_irq(unsigned int irq)
 {
-	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		enable_r7780rp_irq(irq);
+	/* Set the priority in IPR to 0 */
+	ctrl_outw(ctrl_inw(IRLCNTR1) & (0xffff ^ (1 << mask_pos[irq])),
+		  IRLCNTR1);
 }
 
-static struct hw_interrupt_type r7780rp_irq_type = {
-	.typename = "R7780RP-IRQ",
-	.startup = startup_r7780rp_irq,
-	.shutdown = shutdown_r7780rp_irq,
-	.enable = enable_r7780rp_irq,
-	.disable = disable_r7780rp_irq,
-	.ack = ack_r7780rp_irq,
-	.end = end_r7780rp_irq,
+static struct irq_chip r7780rp_irq_chip __read_mostly = {
+	.name		= "r7780rp",
+	.mask		= disable_r7780rp_irq,
+	.unmask		= enable_r7780rp_irq,
+	.mask_ack	= disable_r7780rp_irq,
 };
 
-static void make_r7780rp_irq(unsigned int irq)
-{
-	disable_irq_nosync(irq);
-	irq_desc[irq].chip = &r7780rp_irq_type;
-	disable_r7780rp_irq(irq);
-}
-
 /*
  * Initialize IRQ setting
  */
 void __init init_r7780rp_IRQ(void)
 {
 	int i;
 
-	/* IRL0=PCI Slot #A
-	 * IRL1=PCI Slot #B
-	 * IRL2=PCI Slot #C
-	 * IRL3=PCI Slot #D
-	 * IRL4=CF Card
-	 * IRL5=CF Card Insert
-	 * IRL6=M66596
-	 * IRL7=SD Card
-	 * IRL8=Touch Panel
-	 * IRL9=SCI
-	 * IRL10=Serial
-	 * IRL11=Extention #A
-	 * IRL11=Extention #B
-	 * IRL12=Debug LAN
-	 * IRL13=Push Switch
-	 * IRL14=ZiggBee IO
-	 */
-
-	for (i=0; i<15; i++)
-		make_r7780rp_irq(i);
+	for (i = 0; i < 15; i++) {
+		disable_irq_nosync(i);
+		set_irq_chip_and_handler(i, &r7780rp_irq_chip,
+					 handle_level_irq);
+		enable_r7780rp_irq(i);
+	}
 }
diff --git a/arch/sh/boards/snapgear/setup.c b/arch/sh/boards/snapgear/setup.c
@@ -33,7 +33,7 @@ extern void pcibios_init(void);
  * EraseConfig handling functions
  */
 
-static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id)
 {
 	volatile char dummy __attribute__((unused)) = * (volatile char *) 0xb8000000;
 

diff --git a/arch/sh/cchips/hd6446x/hd64461/setup.c b/arch/sh/cchips/hd6446x/hd64461/setup.c
@@ -71,7 +71,7 @@ static struct hw_interrupt_type hd64461_irq_type = {
 	.end		= end_hd64461_irq,
 };
 
-static irqreturn_t hd64461_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t hd64461_interrupt(int irq, void *dev_id)
 {
 	printk(KERN_INFO
 	       "HD64461: spurious interrupt, nirr: 0x%x nimr: 0x%x\n",

diff --git a/arch/sh/cchips/hd6446x/hd64465/gpio.c b/arch/sh/cchips/hd6446x/hd64465/gpio.c
@@ -85,7 +85,7 @@ static struct {
     void *dev;
 } handlers[GPIO_NPORTS * 8];
 
-static irqreturn_t hd64465_gpio_interrupt(int irq, void *dev, struct pt_regs *regs)
+static irqreturn_t hd64465_gpio_interrupt(int irq, void *dev)
 {
     	unsigned short port, pin, isr, mask, portpin;
 

diff --git a/arch/sh/cchips/hd6446x/hd64465/setup.c b/arch/sh/cchips/hd6446x/hd64465/setup.c
@@ -84,7 +84,7 @@ static struct hw_interrupt_type hd64465_irq_type = {
 };
 
 
-static irqreturn_t hd64465_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t hd64465_interrupt(int irq, void *dev_id)
 {
 	printk(KERN_INFO
 	       "HD64465: spurious interrupt, nirr: 0x%x nimr: 0x%x\n",

diff --git a/arch/sh/cchips/voyagergx/irq.c b/arch/sh/cchips/voyagergx/irq.c
@@ -88,8 +88,7 @@ static struct hw_interrupt_type voyagergx_irq_type = {
 	.end = end_voyagergx_irq,
 };
 
-static irqreturn_t voyagergx_interrupt(int irq, void *dev_id,
-				      struct pt_regs *regs)
+static irqreturn_t voyagergx_interrupt(int irq, void *dev_id)
 {
 	printk(KERN_INFO
 	       "VoyagerGX: spurious interrupt, status: 0x%x\n",

diff --git a/arch/sh/drivers/dma/dma-g2.c b/arch/sh/drivers/dma/dma-g2.c
@@ -51,7 +51,7 @@ static volatile struct g2_dma_info *g2_dma = (volatile struct g2_dma_info *)0xa0
 	((g2_dma->channel[i].size - \
 	  g2_dma->status[i].size) & 0x0fffffff)
 
-static irqreturn_t g2_dma_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t g2_dma_interrupt(int irq, void *dev_id)
 {
 	int i;
 

diff --git a/arch/sh/drivers/dma/dma-pvr2.c b/arch/sh/drivers/dma/dma-pvr2.c
@@ -21,7 +21,7 @@
 static unsigned int xfer_complete;
 static int count;
 
-static irqreturn_t pvr2_dma_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t pvr2_dma_interrupt(int irq, void *dev_id)
 {
 	if (get_dma_residue(PVR2_CASCADE_CHAN)) {
 		printk(KERN_WARNING "DMA: SH DMAC did not complete transfer "

diff --git a/arch/sh/drivers/dma/dma-sh.c b/arch/sh/drivers/dma/dma-sh.c
@@ -60,9 +60,9 @@ static inline unsigned int calc_xmit_shift(struct dma_channel *chan)
  * Besides that it needs to waken any waiting process, which should handle
  * setting up the next transfer.
  */
-static irqreturn_t dma_tei(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dma_tei(int irq, void *dev_id)
 {
-	struct dma_channel *chan = (struct dma_channel *)dev_id;
+	struct dma_channel *chan = dev_id;
 	u32 chcr;
 
 	chcr = ctrl_inl(CHCR[chan->chan]);
@@ -228,7 +228,7 @@ static inline int dmaor_reset(void)
 }
 
 #if defined(CONFIG_CPU_SH4)
-static irqreturn_t dma_err(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dma_err(int irq, void *dummy)
 {
 	dmaor_reset();
 	disable_irq(irq);

diff --git a/arch/sh/drivers/pci/pci-sh7751.c b/arch/sh/drivers/pci/pci-sh7751.c
@@ -155,15 +155,15 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map)
 	 */
 	pr_debug("PCI: Mapping IO address 0x%x - 0x%x to base 0x%x\n",
 		 PCIBIOS_MIN_IO, (64 << 10),
-		 SH4_PCI_IO_BASE + PCIBIOS_MIN_IO);
+		 SH7751_PCI_IO_BASE + PCIBIOS_MIN_IO);
 
 	/*
 	 * XXX: For now, leave this board-specific. In the event we have other
 	 * boards that need to do similar work, this can be wrapped.
 	 */
 #ifdef CONFIG_SH_BIGSUR
 	bigsur_port_map(PCIBIOS_MIN_IO, (64 << 10),
-			SH4_PCI_IO_BASE + PCIBIOS_MIN_IO, 0);
+			SH7751_PCI_IO_BASE + PCIBIOS_MIN_IO, 0);
 #endif
 
 	/* Make sure the MSB's of IO window are set to access PCI space

diff --git a/arch/sh/drivers/pci/pci-st40.c b/arch/sh/drivers/pci/pci-st40.c
@@ -161,7 +161,7 @@ static char * pci_commands[16]={
 	"Memory Write-and-Invalidate"
 };
 
-static irqreturn_t st40_pci_irq(int irq, void *dev_instance, struct pt_regs *regs)
+static irqreturn_t st40_pci_irq(int irq, void *dev_instance)
 {
 	unsigned pci_int, pci_air, pci_cir, pci_aint;
 	static int count=0;