Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6

e98bae75 · Linus Torvalds <[email protected]> · 2011-05-22 22:06:24 -07:00

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6: (28 commits)
  sparc32: fix build, fix missing cpu_relax declaration
  SCHED_TTWU_QUEUE is not longer needed since sparc32 now implements IPI
  sparc32,leon: Remove unnecessary page_address calls in LEON DMA API.
  sparc: convert old cpumask API into new one
  sparc32, sun4d: Implemented SMP IPIs support for SUN4D machines
  sparc32, sun4m: Implemented SMP IPIs support for SUN4M machines
  sparc32,leon: Implemented SMP IPIs for LEON CPU
  sparc32: implement SMP IPIs using the generic functions
  sparc32,leon: SMP power down implementation
  sparc32,leon: added some SMP comments
  sparc: add {read,write}*_be routines
  sparc32,leon: don't rely on bootloader to mask IRQs
  sparc32,leon: operate on boot-cpu IRQ controller registers
  sparc32: always define boot_cpu_id
  sparc32: removed unused code, implemented by generic code
  sparc32: avoid build warning at mm/percpu.c:1647
  sparc32: always register a PROM based early console
  sparc32: probe for cpu info only during startup
  sparc: consolidate show_cpuinfo in cpu.c
  sparc32,leon: implement genirq CPU affinity
  ...

Commit: e98bae7592a44bdce2e49ccd64f3c7ffe244a0f6
Parents: 4b382d06 · f400bdb1

Merge commit. Changes below are compared with the first parent: 4b382d06.

Changes

55 files changed · +1553 −1684

File	Status	Add	Del	Content
arch/sparc/Kconfig	modified	+4	−3	View file
arch/sparc/include/asm/cpudata_32.h	modified	+5	−0	View file
arch/sparc/include/asm/floppy_32.h	modified	+29	−11	View file
arch/sparc/include/asm/io.h	modified	+13	−0	View file
arch/sparc/include/asm/irq_32.h	modified	+5	−1	View file
arch/sparc/include/asm/leon.h	modified	+10	−31	View file
arch/sparc/include/asm/pcic.h	modified	+9	−3	View file
arch/sparc/include/asm/pgtable_32.h	modified	+4	−2	View file
arch/sparc/include/asm/pgtable_64.h	modified	+3	−0	View file
arch/sparc/include/asm/setup.h	modified	+12	−0	View file
arch/sparc/include/asm/smp_32.h	modified	+19	−18	View file
arch/sparc/include/asm/smp_64.h	modified	+4	−0	View file
arch/sparc/include/asm/spinlock_32.h	modified	+1	−0	View file
arch/sparc/include/asm/system_32.h	modified	+0	−5	View file
arch/sparc/include/asm/system_64.h	modified	+0	−4	View file
arch/sparc/include/asm/winmacro.h	modified	+9	−0	View file
arch/sparc/kernel/Makefile	modified	+0	−4	View file
arch/sparc/kernel/cpu.c	modified	+132	−7	View file
arch/sparc/kernel/cpumap.c	modified	+2	−2	View file
arch/sparc/kernel/devices.c	modified	+1	−3	View file
arch/sparc/kernel/ds.c	modified	+7	−7	View file
arch/sparc/kernel/entry.S	modified	+31	−10	View file
arch/sparc/kernel/head_32.S	modified	+28	−23	View file
arch/sparc/kernel/ioport.c	modified	+16	−26	View file
arch/sparc/kernel/irq.h	modified	+27	−24	View file
arch/sparc/kernel/irq_32.c	modified	+124	−389	View file
arch/sparc/kernel/irq_64.c	modified	+3	−3	View file
arch/sparc/kernel/kernel.h	modified	+2	−3	View file
arch/sparc/kernel/leon_kernel.c	modified	+239	−126	View file
arch/sparc/kernel/leon_smp.c	modified	+125	−23	View file
arch/sparc/kernel/mdesc.c	modified	+1	−1	View file
arch/sparc/kernel/of_device_64.c	modified	+2	−1	View file
arch/sparc/kernel/pci_msi.c	modified	+2	−1	View file
arch/sparc/kernel/pcic.c	modified	+56	−27	View file
arch/sparc/kernel/perf_event.c	modified	+1	−0	View file
arch/sparc/kernel/process_32.c	modified	+10	−2	View file
arch/sparc/kernel/prom_32.c	modified	+0	−1	View file
arch/sparc/kernel/setup_32.c	modified	+12	−75	View file
arch/sparc/kernel/setup_64.c	modified	+0	−78	View file
arch/sparc/kernel/smp_32.c	modified	+73	−30	View file
arch/sparc/kernel/smp_64.c	modified	+29	−29	View file
arch/sparc/kernel/sun4c_irq.c	modified	+90	−60	View file
arch/sparc/kernel/sun4d_irq.c	modified	+181	−313	View file
arch/sparc/kernel/sun4d_smp.c	modified	+85	−8	View file
arch/sparc/kernel/sun4m_irq.c	modified	+98	−81	View file
arch/sparc/kernel/sun4m_smp.c	modified	+32	−19	View file
arch/sparc/kernel/sysfs.c	modified	+2	−1	View file
arch/sparc/kernel/time_32.c	modified	+3	−7	View file
arch/sparc/kernel/us2e_cpufreq.c	modified	+2	−2	View file
arch/sparc/kernel/us3_cpufreq.c	modified	+2	−2	View file
arch/sparc/lib/Makefile	modified	+0	−1	View file
arch/sparc/lib/rwsem_32.S	deleted	+0	−204	View before deletion
arch/sparc/mm/init_64.c	modified	+7	−7	View file
init/Kconfig	modified	+0	−5	View file
kernel/sched.c	modified	+1	−1	View file

Only the first 600 diff lines are shown. Download the complete patch.

arch/sparc/Kconfig

View file

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index e560d10..63a027c 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -25,6 +25,10 @@ config SPARC
 	select HAVE_DMA_ATTRS
 	select HAVE_DMA_API_DEBUG
 	select HAVE_ARCH_JUMP_LABEL
+	select HAVE_GENERIC_HARDIRQS
+	select GENERIC_HARDIRQS_NO_DEPRECATED
+	select GENERIC_IRQ_SHOW
+	select USE_GENERIC_SMP_HELPERS if SMP
 
 config SPARC32
 	def_bool !64BIT
@@ -43,15 +47,12 @@ config SPARC64
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_SYSCALL_TRACEPOINTS
-	select USE_GENERIC_SMP_HELPERS if SMP
 	select RTC_DRV_CMOS
 	select RTC_DRV_BQ4802
 	select RTC_DRV_SUN4V
 	select RTC_DRV_STARFIRE
 	select HAVE_PERF_EVENTS
 	select PERF_USE_VMALLOC
-	select HAVE_GENERIC_HARDIRQS
-	select GENERIC_IRQ_SHOW
 	select IRQ_PREFLOW_FASTEOI
 
 config ARCH_DEFCONFIG

arch/sparc/include/asm/cpudata_32.h

View file

diff --git a/arch/sparc/include/asm/cpudata_32.h b/arch/sparc/include/asm/cpudata_32.h
index 31d48a0..a4c5a93 100644
--- a/arch/sparc/include/asm/cpudata_32.h
+++ b/arch/sparc/include/asm/cpudata_32.h
@@ -16,6 +16,10 @@ typedef struct {
 	unsigned long clock_tick;
 	unsigned int multiplier;
 	unsigned int counter;
+#ifdef CONFIG_SMP
+	unsigned int irq_resched_count;
+	unsigned int irq_call_count;
+#endif
 	int prom_node;
 	int mid;
 	int next;
@@ -23,5 +27,6 @@ typedef struct {
 
 DECLARE_PER_CPU(cpuinfo_sparc, __cpu_data);
 #define cpu_data(__cpu) per_cpu(__cpu_data, (__cpu))
+#define local_cpu_data() __get_cpu_var(__cpu_data)
 
 #endif /* _SPARC_CPUDATA_H */

arch/sparc/include/asm/floppy_32.h

View file

diff --git a/arch/sparc/include/asm/floppy_32.h b/arch/sparc/include/asm/floppy_32.h
index 86666f7..482c79e 100644
--- a/arch/sparc/include/asm/floppy_32.h
+++ b/arch/sparc/include/asm/floppy_32.h
@@ -281,28 +281,27 @@ static inline void sun_fd_enable_dma(void)
 	pdma_areasize = pdma_size;
 }
 
-/* Our low-level entry point in arch/sparc/kernel/entry.S */
-extern int sparc_floppy_request_irq(int irq, unsigned long flags,
-				    irq_handler_t irq_handler);
+extern int sparc_floppy_request_irq(unsigned int irq,
+                                    irq_handler_t irq_handler);
 
 static int sun_fd_request_irq(void)
 {
 	static int once = 0;
-	int error;
 
-	if(!once) {
+	if (!once) {
 		once = 1;
-		error = sparc_floppy_request_irq(FLOPPY_IRQ,
-						 IRQF_DISABLED,
-						 floppy_interrupt);
-		return ((error == 0) ? 0 : -1);
-	} else return 0;
+		return sparc_floppy_request_irq(FLOPPY_IRQ, floppy_interrupt);
+	} else {
+		return 0;
+	}
 }
 
 static struct linux_prom_registers fd_regs[2];
 
 static int sun_floppy_init(void)
 {
+	struct platform_device *op;
+	struct device_node *dp;
 	char state[128];
 	phandle tnode, fd_node;
 	int num_regs;
@@ -310,7 +309,6 @@ static int sun_floppy_init(void)
 
 	use_virtual_dma = 1;
 
-	FLOPPY_IRQ = 11;
 	/* Forget it if we aren't on a machine that could possibly
 	 * ever have a floppy drive.
 	 */
@@ -349,6 +347,26 @@ static int sun_floppy_init(void)
 	sun_fdc = (struct sun_flpy_controller *)
 	    of_ioremap(&r, 0, fd_regs[0].reg_size, "floppy");
 
+	/* Look up irq in platform_device.
+	 * We try "SUNW,fdtwo" and "fd"
+	 */
+	for_each_node_by_name(dp, "SUNW,fdtwo") {
+		op = of_find_device_by_node(dp);
+		if (op)
+			break;
+	}
+	if (!op) {
+		for_each_node_by_name(dp, "fd") {
+			op = of_find_device_by_node(dp);
+			if (op)
+				break;
+		}
+	}
+	if (!op)
+		goto no_sun_fdc;
+
+	FLOPPY_IRQ = op->archdata.irqs[0];
+
 	/* Last minute sanity check... */
 	if(sun_fdc->status_82072 == 0xff) {
 		sun_fdc = NULL;

arch/sparc/include/asm/io.h

View file

diff --git a/arch/sparc/include/asm/io.h b/arch/sparc/include/asm/io.h
index a34b299..f6902cf 100644
--- a/arch/sparc/include/asm/io.h
+++ b/arch/sparc/include/asm/io.h
@@ -5,4 +5,17 @@
 #else
 #include <asm/io_32.h>
 #endif
+
+/*
+ * Defines used for both SPARC32 and SPARC64
+ */
+
+/* Big endian versions of memory read/write routines */
+#define readb_be(__addr)	__raw_readb(__addr)
+#define readw_be(__addr)	__raw_readw(__addr)
+#define readl_be(__addr)	__raw_readl(__addr)
+#define writeb_be(__b, __addr)	__raw_writeb(__b, __addr)
+#define writel_be(__w, __addr)	__raw_writel(__w, __addr)
+#define writew_be(__l, __addr)	__raw_writew(__l, __addr)
+
 #endif

arch/sparc/include/asm/irq_32.h

View file

diff --git a/arch/sparc/include/asm/irq_32.h b/arch/sparc/include/asm/irq_32.h
index eced3e3..2ae3aca 100644
--- a/arch/sparc/include/asm/irq_32.h
+++ b/arch/sparc/include/asm/irq_32.h
@@ -6,7 +6,11 @@
 #ifndef _SPARC_IRQ_H
 #define _SPARC_IRQ_H
 
-#define NR_IRQS    16
+/* Allocated number of logical irq numbers.
+ * sun4d boxes (ss2000e) should be OK with ~32.
+ * Be on the safe side and make room for 64
+ */
+#define NR_IRQS    64
 
 #include <linux/interrupt.h>
 

arch/sparc/include/asm/leon.h

View file

diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h
index c04f96f..6bdaf1e 100644
--- a/arch/sparc/include/asm/leon.h
+++ b/arch/sparc/include/asm/leon.h
@@ -52,29 +52,6 @@
 #define LEON_DIAGF_VALID	0x2000
 #define LEON_DIAGF_VALID_SHIFT	13
 
-/*
- *  Interrupt Sources
- *
- *  The interrupt source numbers directly map to the trap type and to
- *  the bits used in the Interrupt Clear, Interrupt Force, Interrupt Mask,
- *  and the Interrupt Pending Registers.
- */
-#define LEON_INTERRUPT_CORRECTABLE_MEMORY_ERROR	1
-#define LEON_INTERRUPT_UART_1_RX_TX		2
-#define LEON_INTERRUPT_UART_0_RX_TX		3
-#define LEON_INTERRUPT_EXTERNAL_0		4
-#define LEON_INTERRUPT_EXTERNAL_1		5
-#define LEON_INTERRUPT_EXTERNAL_2		6
-#define LEON_INTERRUPT_EXTERNAL_3		7
-#define LEON_INTERRUPT_TIMER1			8
-#define LEON_INTERRUPT_TIMER2			9
-#define LEON_INTERRUPT_EMPTY1			10
-#define LEON_INTERRUPT_EMPTY2			11
-#define LEON_INTERRUPT_OPEN_ETH			12
-#define LEON_INTERRUPT_EMPTY4			13
-#define LEON_INTERRUPT_EMPTY5			14
-#define LEON_INTERRUPT_EMPTY6			15
-
 /* irq masks */
 #define LEON_HARD_INT(x)	(1 << (x))	/* irq 0-15 */
 #define LEON_IRQMASK_R		0x0000fffe	/* bit 15- 1 of lregs.irqmask */
@@ -183,7 +160,6 @@ static inline void leon_srmmu_enabletlb(void)
 /* macro access for leon_readnobuffer_reg() */
 #define LEON_BYPASSCACHE_LOAD_VA(x) leon_readnobuffer_reg((unsigned long)(x))
 
-extern void sparc_leon_eirq_register(int eirq);
 extern void leon_init(void);
 extern void leon_switch_mm(void);
 extern void leon_init_IRQ(void);
@@ -239,8 +215,8 @@ static inline int sparc_leon3_cpuid(void)
 #endif /*!__ASSEMBLY__*/
 
 #ifdef CONFIG_SMP
-# define LEON3_IRQ_RESCHEDULE		13
-# define LEON3_IRQ_TICKER		(leon_percpu_timer_dev[0].irq)
+# define LEON3_IRQ_IPI_DEFAULT		13
+# define LEON3_IRQ_TICKER		(leon3_ticker_irq)
 # define LEON3_IRQ_CROSS_CALL		15
 #endif
 
@@ -339,9 +315,9 @@ struct leon2_cacheregs {
 #include <linux/interrupt.h>
 
 struct device_node;
-extern int sparc_leon_eirq_get(int eirq, int cpu);
-extern irqreturn_t sparc_leon_eirq_isr(int dummy, void *dev_id);
-extern void sparc_leon_eirq_register(int eirq);
+extern unsigned int leon_build_device_irq(unsigned int real_irq,
+					   irq_flow_handler_t flow_handler,
+					   const char *name, int do_ack);
 extern void leon_clear_clock_irq(void);
 extern void leon_load_profile_irq(int cpu, unsigned int limit);
 extern void leon_init_timers(irq_handler_t counter_fn);
@@ -358,6 +334,7 @@ extern void leon3_getCacheRegs(struct leon3_cacheregs *regs);
 extern int leon_flush_needed(void);
 extern void leon_switch_mm(void);
 extern int srmmu_swprobe_trace;
+extern int leon3_ticker_irq;
 
 #ifdef CONFIG_SMP
 extern int leon_smp_nrcpus(void);
@@ -366,17 +343,19 @@ extern void leon_smp_done(void);
 extern void leon_boot_cpus(void);
 extern int leon_boot_one_cpu(int i);
 void leon_init_smp(void);
-extern void cpu_probe(void);
 extern void cpu_idle(void);
 extern void init_IRQ(void);
 extern void cpu_panic(void);
 extern int __leon_processor_id(void);
 void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu);
+extern irqreturn_t leon_percpu_timer_interrupt(int irq, void *unused);
 
-extern unsigned int real_irq_entry[], smpleon_ticker[];
+extern unsigned int real_irq_entry[];
+extern unsigned int smpleon_ipi[];
 extern unsigned int patchme_maybe_smp_msg[];
 extern unsigned int t_nmi[], linux_trap_ipi15_leon[];
 extern unsigned int linux_trap_ipi15_sun4m[];
+extern int leon_ipi_irq;
 
 #endif /* CONFIG_SMP */
 

arch/sparc/include/asm/pcic.h

View file

diff --git a/arch/sparc/include/asm/pcic.h b/arch/sparc/include/asm/pcic.h
index f20ef56..7eb5d78 100644
--- a/arch/sparc/include/asm/pcic.h
+++ b/arch/sparc/include/asm/pcic.h
@@ -29,11 +29,17 @@ struct linux_pcic {
 	int			pcic_imdim;
 };
 
-extern int pcic_probe(void);
-/* Erm... MJ redefined pcibios_present() so that it does not work early. */
+#ifdef CONFIG_PCI
 extern int pcic_present(void);
+extern int pcic_probe(void);
+extern void pci_time_init(void);
 extern void sun4m_pci_init_IRQ(void);
-
+#else
+static inline int pcic_present(void) { return 0; }
+static inline int pcic_probe(void) { return 0; }
+static inline void pci_time_init(void) {}
+static inline void sun4m_pci_init_IRQ(void) {}
+#endif
 #endif
 
 /* Size of PCI I/O space which we relocate. */

arch/sparc/include/asm/pgtable_32.h

View file

diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
index 303bd4d..5b31a8e 100644
--- a/arch/sparc/include/asm/pgtable_32.h
+++ b/arch/sparc/include/asm/pgtable_32.h
@@ -8,6 +8,8 @@
  *  Copyright (C) 1998 Jakub Jelinek ([email protected])
  */
 
+#include <linux/const.h>
+
 #ifndef __ASSEMBLY__
 #include <asm-generic/4level-fixup.h>
 
@@ -456,9 +458,9 @@ extern int io_remap_pfn_range(struct vm_area_struct *vma,
 
 #endif /* !(__ASSEMBLY__) */
 
-#define VMALLOC_START           0xfe600000
+#define VMALLOC_START           _AC(0xfe600000,UL)
 /* XXX Alter this when I get around to fixing sun4c - Anton */
-#define VMALLOC_END             0xffc00000
+#define VMALLOC_END             _AC(0xffc00000,UL)
 
 
 /* We provide our own get_unmapped_area to cope with VA holes for userland */

arch/sparc/include/asm/pgtable_64.h

View file

diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index f8dddb7..b77128c 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -699,6 +699,9 @@ extern pmd_t swapper_low_pmd_dir[2048];
 extern void paging_init(void);
 extern unsigned long find_ecache_flush_span(unsigned long size);
 
+struct seq_file;
+extern void mmu_info(struct seq_file *);
+
 /* These do nothing with the way I have things setup. */
 #define mmu_lockarea(vaddr, len)		(vaddr)
 #define mmu_unlockarea(vaddr, len)		do { } while(0)

arch/sparc/include/asm/setup.h

View file

diff --git a/arch/sparc/include/asm/setup.h b/arch/sparc/include/asm/setup.h
index 2643c62..64718ba 100644
--- a/arch/sparc/include/asm/setup.h
+++ b/arch/sparc/include/asm/setup.h
@@ -11,4 +11,16 @@
 # define COMMAND_LINE_SIZE 256
 #endif
 
+#ifdef __KERNEL__
+
+#ifdef CONFIG_SPARC32
+/* The CPU that was used for booting
+ * Only sun4d + leon may have boot_cpu_id != 0
+ */
+extern unsigned char boot_cpu_id;
+extern unsigned char boot_cpu_id4;
+#endif
+
+#endif /* __KERNEL__ */
+
 #endif /* _SPARC_SETUP_H */

arch/sparc/include/asm/smp_32.h

View file

diff --git a/arch/sparc/include/asm/smp_32.h b/arch/sparc/include/asm/smp_32.h
index d82d7f4..093f108 100644
--- a/arch/sparc/include/asm/smp_32.h
+++ b/arch/sparc/include/asm/smp_32.h
@@ -50,42 +50,38 @@ void smp_callin(void);
 void smp_boot_cpus(void);
 void smp_store_cpu_info(int);
 
+void smp_resched_interrupt(void);
+void smp_call_function_single_interrupt(void);
+void smp_call_function_interrupt(void);
+
 struct seq_file;
 void smp_bogo(struct seq_file *);
 void smp_info(struct seq_file *);
 
 BTFIXUPDEF_CALL(void, smp_cross_call, smpfunc_t, cpumask_t, unsigned long, unsigned long, unsigned long, unsigned long)
 BTFIXUPDEF_CALL(int, __hard_smp_processor_id, void)
+BTFIXUPDEF_CALL(void, smp_ipi_resched, int);
+BTFIXUPDEF_CALL(void, smp_ipi_single, int);
+BTFIXUPDEF_CALL(void, smp_ipi_mask_one, int);
 BTFIXUPDEF_BLACKBOX(hard_smp_processor_id)
 BTFIXUPDEF_BLACKBOX(load_current)
 
 #define smp_cross_call(func,mask,arg1,arg2,arg3,arg4) BTFIXUP_CALL(smp_cross_call)(func,mask,arg1,arg2,arg3,arg4)
 
-static inline void xc0(smpfunc_t func) { smp_cross_call(func, cpu_online_map, 0, 0, 0, 0); }
+static inline void xc0(smpfunc_t func) { smp_cross_call(func, *cpu_online_mask, 0, 0, 0, 0); }
 static inline void xc1(smpfunc_t func, unsigned long arg1)
-{ smp_cross_call(func, cpu_online_map, arg1, 0, 0, 0); }
+{ smp_cross_call(func, *cpu_online_mask, arg1, 0, 0, 0); }
 static inline void xc2(smpfunc_t func, unsigned long arg1, unsigned long arg2)
-{ smp_cross_call(func, cpu_online_map, arg1, arg2, 0, 0); }
+{ smp_cross_call(func, *cpu_online_mask, arg1, arg2, 0, 0); }
 static inline void xc3(smpfunc_t func, unsigned long arg1, unsigned long arg2,
 			   unsigned long arg3)
-{ smp_cross_call(func, cpu_online_map, arg1, arg2, arg3, 0); }
+{ smp_cross_call(func, *cpu_online_mask, arg1, arg2, arg3, 0); }
 static inline void xc4(smpfunc_t func, unsigned long arg1, unsigned long arg2,
 			   unsigned long arg3, unsigned long arg4)
-{ smp_cross_call(func, cpu_online_map, arg1, arg2, arg3, arg4); }
-
-static inline int smp_call_function(void (*func)(void *info), void *info, int wait)
-{
-	xc1((smpfunc_t)func, (unsigned long)info);
-	return 0;
-}
+{ smp_cross_call(func, *cpu_online_mask, arg1, arg2, arg3, arg4); }
 
-static inline int smp_call_function_single(int cpuid, void (*func) (void *info),
-					   void *info, int wait)
-{
-	smp_cross_call((smpfunc_t)func, cpumask_of_cpu(cpuid),
-		       (unsigned long) info, 0, 0, 0);
-	return 0;
-}
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
 
 static inline int cpu_logical_map(int cpu)
 {
@@ -135,6 +131,11 @@ static inline int hard_smp_processor_id(void)
 		__asm__ __volatile__("lda [%g0] ASI_M_VIKING_TMP1, %0\n\t"
 				     "nop; nop" :
 				     "=&r" (cpuid));
+		     - leon
+		__asm__ __volatile__(	"rd %asr17, %0\n\t"
+					"srl %0, 0x1c, %0\n\t"
+					"nop\n\t" :
+					"=&r" (cpuid));
 	   See btfixup.h and btfixupprep.c to understand how a blackbox works.
 	 */
 	__asm__ __volatile__("sethi %%hi(___b_hard_smp_processor_id), %0\n\t"

arch/sparc/include/asm/smp_64.h

View file

diff --git a/arch/sparc/include/asm/smp_64.h b/arch/sparc/include/asm/smp_64.h
index f49e11c..20bca89 100644
--- a/arch/sparc/include/asm/smp_64.h
+++ b/arch/sparc/include/asm/smp_64.h
@@ -49,6 +49,10 @@ extern void cpu_play_dead(void);
 
 extern void smp_fetch_global_regs(void);
 
+struct seq_file;
+void smp_bogo(struct seq_file *);
+void smp_info(struct seq_file *);
+
 #ifdef CONFIG_HOTPLUG_CPU
 extern int __cpu_disable(void);
 extern void __cpu_die(unsigned int cpu);

arch/sparc/include/asm/spinlock_32.h

View file

diff --git a/arch/sparc/include/asm/spinlock_32.h b/arch/sparc/include/asm/spinlock_32.h
index 7f9b9db..5f5b8bf 100644
--- a/arch/sparc/include/asm/spinlock_32.h
+++ b/arch/sparc/include/asm/spinlock_32.h
@@ -9,6 +9,7 @@
 #ifndef __ASSEMBLY__
 
 #include <asm/psr.h>
+#include <asm/processor.h> /* for cpu_relax */
 
 #define arch_spin_is_locked(lock) (*((volatile unsigned char *)(lock)) != 0)
 

arch/sparc/include/asm/system_32.h

View file

diff --git a/arch/sparc/include/asm/system_32.h b/arch/sparc/include/asm/system_32.h
index 890036b..47a7e86 100644
--- a/arch/sparc/include/asm/system_32.h
+++ b/arch/sparc/include/asm/system_32.h
@@ -15,11 +15,6 @@
 
 #include <linux/irqflags.h>
 
-static inline unsigned int probe_irq_mask(unsigned long val)
-{
-	return 0;
-}
-
 /*
  * Sparc (general) CPU types
  */

arch/sparc/include/asm/system_64.h

View file

diff --git a/arch/sparc/include/asm/system_64.h b/arch/sparc/include/asm/system_64.h
index e3b65d8..3c96d3b 100644
--- a/arch/sparc/include/asm/system_64.h
+++ b/arch/sparc/include/asm/system_64.h
@@ -29,10 +29,6 @@ enum sparc_cpu {
 /* This cannot ever be a sun4c :) That's just history. */
 #define ARCH_SUN4C 0
 
-extern const char *sparc_cpu_type;
-extern const char *sparc_fpu_type;
-extern const char *sparc_pmu_type;
-
 extern char reboot_command[];
 
 /* These are here in an effort to more fully work around Spitfire Errata

arch/sparc/include/asm/winmacro.h

View file

diff --git a/arch/sparc/include/asm/winmacro.h b/arch/sparc/include/asm/winmacro.h
index 5b0a06d..a9be04b 100644
--- a/arch/sparc/include/asm/winmacro.h
+++ b/arch/sparc/include/asm/winmacro.h
@@ -103,6 +103,7 @@
         st       %scratch, [%cur_reg + TI_W_SAVED];
 
 #ifdef CONFIG_SMP
+/* Results of LOAD_CURRENT() after BTFIXUP for SUN4M, SUN4D & LEON (comments) */
 #define LOAD_CURRENT4M(dest_reg, idreg) \
         rd       %tbr, %idreg; \
 	sethi    %hi(current_set), %dest_reg; \
@@ -118,6 +119,14 @@
 	or	%dest_reg, %lo(C_LABEL(current_set)), %dest_reg; \
 	ld	[%idreg + %dest_reg], %dest_reg;
 
+#define LOAD_CURRENT_LEON(dest_reg, idreg)			\
+	rd	%asr17, %idreg;					\
+	sethi	%hi(current_set), %dest_reg;			\
+	srl	%idreg, 0x1c, %idreg;				\
+	or	%dest_reg, %lo(current_set), %dest_reg;		\
+	sll	%idreg, 0x2, %idreg;				\
+	ld	[%idreg + %dest_reg], %dest_reg;
+
 /* Blackbox - take care with this... - check smp4m and smp4d before changing this. */
 #define LOAD_CURRENT(dest_reg, idreg) 					\
 	sethi	 %hi(___b_load_current), %idreg;			\

arch/sparc/kernel/Makefile

View file

diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index 99aa4db..9cff270 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -71,10 +71,6 @@ obj-$(CONFIG_SPARC64)	+= pcr.o
 obj-$(CONFIG_SPARC64)	+= nmi.o
 obj-$(CONFIG_SPARC64_SMP) += cpumap.o
 
-# sparc32 do not use GENERIC_HARDIRQS but uses the generic devres implementation
-obj-$(CONFIG_SPARC32)     += devres.o
-devres-y                  := ../../../kernel/irq/devres.o
-
 obj-y                     += dma.o
 
 obj-$(CONFIG_SPARC32_PCI) += pcic.o

arch/sparc/kernel/cpu.c

View file

diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c
index 7925c54..138dbbc 100644
--- a/arch/sparc/kernel/cpu.c
+++ b/arch/sparc/kernel/cpu.c
@@ -4,6 +4,7 @@
  * Copyright (C) 1996 David S. Miller ([email protected])
  */
 
+#include <linux/seq_file.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -11,7 +12,9 @@
 #include <linux/threads.h>
 
 #include <asm/spitfire.h>
+#include <asm/pgtable.h>
 #include <asm/oplib.h>
+#include <asm/setup.h>
 #include <asm/page.h>
 #include <asm/head.h>
 #include <asm/psr.h>
@@ -23,6 +26,9 @@
 DEFINE_PER_CPU(cpuinfo_sparc, __cpu_data) = { 0 };
 EXPORT_PER_CPU_SYMBOL(__cpu_data);
 
+int ncpus_probed;
+unsigned int fsr_storage;
+
 struct cpu_info {
 	int psr_vers;
 	const char *name;
@@ -247,13 +253,12 @@ static const struct manufacturer_info __initconst manufacturer_info[] = {
  * machine type value into consideration too.  I will fix this.
  */
 
-const char *sparc_cpu_type;
-const char *sparc_fpu_type;
+static const char *sparc_cpu_type;
+static const char *sparc_fpu_type;
 const char *sparc_pmu_type;
 
-unsigned int fsr_storage;
 
-static void set_cpu_and_fpu(int psr_impl, int psr_vers, int fpu_vers)
+static void __init set_cpu_and_fpu(int psr_impl, int psr_vers, int fpu_vers)
 {
 	const struct manufacturer_info *manuf;
 	int i;
@@ -313,7 +318,123 @@ static void set_cpu_and_fpu(int psr_impl, int psr_vers, int fpu_vers)
 }
 
 #ifdef CONFIG_SPARC32
-void __cpuinit cpu_probe(void)
+static int show_cpuinfo(struct seq_file *m, void *__unused)
+{
+	seq_printf(m,
+		   "cpu\t\t: %s\n"
+		   "fpu\t\t: %s\n"
+		   "promlib\t\t: Version %d Revision %d\n"
+		   "prom\t\t: %d.%d\n"
+		   "type\t\t: %s\n"
+		   "ncpus probed\t: %d\n"
+		   "ncpus active\t: %d\n"
+#ifndef CONFIG_SMP
+		   "CPU0Bogo\t: %lu.%02lu\n"
+		   "CPU0ClkTck\t: %ld\n"
+#endif
+		   ,
+		   sparc_cpu_type,
+		   sparc_fpu_type ,
+		   romvec->pv_romvers,
+		   prom_rev,
+		   romvec->pv_printrev >> 16,
+		   romvec->pv_printrev & 0xffff,
+		   &cputypval[0],
+		   ncpus_probed,