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

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: serial: sh-sci: remove duplicated #include sh: Export uncached helper symbols. sh: Fix up NUMA build for 29-bit. serial: sh-sci: Fix build failure for non-sh architectures. sh: Fix up uncached offset for legacy 29-bit mode. sh: Support CPU affinity masks for INTC controllers.
mariux64 · Mar 20, 2010 · e4d8063 · e4d8063
2 parents b50df7d + 3f7581d
commit e4d8063
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Showing 5 changed files with 50 additions and 2 deletions.
diff --git a/arch/sh/include/asm/mmu.h b/arch/sh/include/asm/mmu.h
@@ -66,6 +66,13 @@ int pmb_unmap(void __iomem *addr);
 
 #else
 
+static inline int
+pmb_bolt_mapping(unsigned long virt, phys_addr_t phys,
+		 unsigned long size, pgprot_t prot)
+{
+	return -EINVAL;
+}
+
 static inline void __iomem *
 pmb_remap_caller(phys_addr_t phys, unsigned long size,
 		 pgprot_t prot, void *caller)

diff --git a/arch/sh/mm/uncached.c b/arch/sh/mm/uncached.c
@@ -1,6 +1,8 @@
 #include <linux/init.h>
+#include <linux/module.h>
 #include <asm/sizes.h>
 #include <asm/page.h>
+#include <asm/addrspace.h>
 
 /*
  * This is the offset of the uncached section from its cached alias.
@@ -15,15 +17,22 @@
 unsigned long cached_to_uncached = SZ_512M;
 unsigned long uncached_size = SZ_512M;
 unsigned long uncached_start, uncached_end;
+EXPORT_SYMBOL(uncached_start);
+EXPORT_SYMBOL(uncached_end);
 
 int virt_addr_uncached(unsigned long kaddr)
 {
 	return (kaddr >= uncached_start) && (kaddr < uncached_end);
 }
+EXPORT_SYMBOL(virt_addr_uncached);
 
 void __init uncached_init(void)
 {
+#ifdef CONFIG_29BIT
+	uncached_start = P2SEG;
+#else
 	uncached_start = memory_end;
+#endif
 	uncached_end = uncached_start + uncached_size;
 }
 

diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
@@ -50,7 +50,6 @@
 #include <linux/list.h>
 #include <linux/dmaengine.h>
 #include <linux/scatterlist.h>
-#include <linux/timer.h>
 
 #ifdef CONFIG_SUPERH
 #include <asm/sh_bios.h>

diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c
@@ -2,7 +2,7 @@
  * Shared interrupt handling code for IPR and INTC2 types of IRQs.
  *
  * Copyright (C) 2007, 2008 Magnus Damm
- * Copyright (C) 2009 Paul Mundt
+ * Copyright (C) 2009, 2010 Paul Mundt
  *
  * Based on intc2.c and ipr.c
  *
@@ -26,6 +26,7 @@
 #include <linux/list.h>
 #include <linux/topology.h>
 #include <linux/bitmap.h>
+#include <linux/cpumask.h>
 
 #define _INTC_MK(fn, mode, addr_e, addr_d, width, shift) \
 	((shift) | ((width) << 5) | ((fn) << 9) | ((mode) << 13) | \
@@ -234,6 +235,10 @@ static inline void _intc_enable(unsigned int irq, unsigned long handle)
 	unsigned int cpu;
 
 	for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_E(handle)); cpu++) {
+#ifdef CONFIG_SMP
+		if (!cpumask_test_cpu(cpu, irq_to_desc(irq)->affinity))
+			continue;
+#endif
 		addr = INTC_REG(d, _INTC_ADDR_E(handle), cpu);
 		intc_enable_fns[_INTC_MODE(handle)](addr, handle, intc_reg_fns\
 						    [_INTC_FN(handle)], irq);
@@ -253,6 +258,10 @@ static void intc_disable(unsigned int irq)
 	unsigned int cpu;
 
 	for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_D(handle)); cpu++) {
+#ifdef CONFIG_SMP
+		if (!cpumask_test_cpu(cpu, irq_to_desc(irq)->affinity))
+			continue;
+#endif
 		addr = INTC_REG(d, _INTC_ADDR_D(handle), cpu);
 		intc_disable_fns[_INTC_MODE(handle)](addr, handle,intc_reg_fns\
 						     [_INTC_FN(handle)], irq);
@@ -301,6 +310,23 @@ static int intc_set_wake(unsigned int irq, unsigned int on)
 	return 0; /* allow wakeup, but setup hardware in intc_suspend() */
 }
 
+#ifdef CONFIG_SMP
+/*
+ * This is held with the irq desc lock held, so we don't require any
+ * additional locking here at the intc desc level. The affinity mask is
+ * later tested in the enable/disable paths.
+ */
+static int intc_set_affinity(unsigned int irq, const struct cpumask *cpumask)
+{
+	if (!cpumask_intersects(cpumask, cpu_online_mask))
+		return -1;
+
+	cpumask_copy(irq_to_desc(irq)->affinity, cpumask);
+
+	return 0;
+}
+#endif
+
 static void intc_mask_ack(unsigned int irq)
 {
 	struct intc_desc_int *d = get_intc_desc(irq);
@@ -847,6 +873,9 @@ void __init register_intc_controller(struct intc_desc *desc)
 	d->chip.shutdown = intc_disable;
 	d->chip.set_type = intc_set_sense;
 	d->chip.set_wake = intc_set_wake;
+#ifdef CONFIG_SMP
+	d->chip.set_affinity = intc_set_affinity;
+#endif
 
 	if (hw->ack_regs) {
 		for (i = 0; i < hw->nr_ack_regs; i++)

diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
@@ -2,7 +2,9 @@
 #define __LINUX_SERIAL_SCI_H
 
 #include <linux/serial_core.h>
+#ifdef CONFIG_SERIAL_SH_SCI_DMA
 #include <asm/dmaengine.h>
+#endif
 
 /*
  * Generic header for SuperH SCI(F) (used by sh/sh64/h8300 and related parts)
@@ -30,8 +32,10 @@ struct plat_sci_port {
 	upf_t		flags;			/* UPF_* flags */
 	char		*clk;			/* clock string */
 	struct device	*dma_dev;
+#ifdef CONFIG_SERIAL_SH_SCI_DMA
 	enum sh_dmae_slave_chan_id dma_slave_tx;
 	enum sh_dmae_slave_chan_id dma_slave_rx;
+#endif
 };
 
 #endif /* __LINUX_SERIAL_SCI_H */