From a81dd18eb974cc34634c53a6447b2799ec0c3158 Mon Sep 17 00:00:00 2001
From: Thibaut VARENE
Date: Fri, 3 Feb 2006 18:06:30 -0700
Subject: [PARISC] Clarify pdc_stable license terms

pdc_stable.c is explicitly licensed under GPL version 2.

Signed-off-by: Thibaut VARENE <varenet@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 include/asm-parisc/pdc_chassis.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/include/asm-parisc/pdc_chassis.h b/include/asm-parisc/pdc_chassis.h
index adac9ac2743f..a609273dc6bf 100644
--- a/include/asm-parisc/pdc_chassis.h
+++ b/include/asm-parisc/pdc_chassis.h
@@ -6,9 +6,8 @@
  *
  *
  *      This program is free software; you can redistribute it and/or modify
- *      it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2, or (at your option)
- *      any later version.
+ *      it under the terms of the GNU General Public License, version 2, as
+ *      published by the Free Software Foundation.
  *      
  *      This program is distributed in the hope that it will be useful,
  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
-- 
cgit v1.2.3


From ab43227c8a568119a3aebc952a95ac3023e1730d Mon Sep 17 00:00:00 2001
From: James Bottomley
Date: Wed, 22 Mar 2006 08:28:59 -0700
Subject: [PARISC] Add parisc implementation of flush_anon_page()

This should now allow SG_IO and fuse to function correctly on our
platform.

Signed-off-by: James Bottomley <jejb@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 include/asm-parisc/cacheflush.h | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'include')

diff --git a/include/asm-parisc/cacheflush.h b/include/asm-parisc/cacheflush.h
index c53af9ff41b5..482be77551e3 100644
--- a/include/asm-parisc/cacheflush.h
+++ b/include/asm-parisc/cacheflush.h
@@ -184,6 +184,14 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 
 }
 
+static inline void
+flush_anon_page(struct page *page, unsigned long vmaddr)
+{
+	if (PageAnon(page))
+		flush_user_dcache_page(vmaddr);
+}
+#define ARCH_HAS_FLUSH_ANON_PAGE
+
 #ifdef CONFIG_DEBUG_RODATA
 void mark_rodata_ro(void);
 #endif
-- 
cgit v1.2.3


From ba57583396585a1ca509e2a84d970a2ff3f9bbfb Mon Sep 17 00:00:00 2001
From: James Bottomley
Date: Wed, 22 Mar 2006 09:42:04 -0700
Subject: [PARISC] Add parisc implementation of flush_kernel_dcache_page()

We need to do a little renaming of our original syntax because
of the difference in arguments.

Signed-off-by: James Bottomley <jejb@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 arch/parisc/kernel/cache.c      | 6 +++---
 arch/parisc/kernel/pacache.S    | 4 ++--
 include/asm-parisc/cache.h      | 2 +-
 include/asm-parisc/cacheflush.h | 9 ++++++++-
 include/asm-parisc/page.h       | 2 +-
 5 files changed, 15 insertions(+), 8 deletions(-)

(limited to 'include')

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index d8a4ca021aac..360b7391cb8c 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -89,7 +89,7 @@ update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t pte)
 	if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
 	    test_bit(PG_dcache_dirty, &page->flags)) {
 
-		flush_kernel_dcache_page(page_address(page));
+		flush_kernel_dcache_page(page);
 		clear_bit(PG_dcache_dirty, &page->flags);
 	}
 }
@@ -278,7 +278,7 @@ void flush_dcache_page(struct page *page)
 		return;
 	}
 
-	flush_kernel_dcache_page(page_address(page));
+	flush_kernel_dcache_page(page);
 
 	if (!mapping)
 		return;
@@ -317,7 +317,7 @@ EXPORT_SYMBOL(flush_dcache_page);
 
 /* Defined in arch/parisc/kernel/pacache.S */
 EXPORT_SYMBOL(flush_kernel_dcache_range_asm);
-EXPORT_SYMBOL(flush_kernel_dcache_page);
+EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 9534ee17b9be..7a4f07e8d3c3 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -621,9 +621,9 @@ __clear_user_page_asm:
 
 	.procend
 
-	.export flush_kernel_dcache_page
+	.export flush_kernel_dcache_page_asm
 
-flush_kernel_dcache_page:
+flush_kernel_dcache_page_asm:
 	.proc
 	.callinfo NO_CALLS
 	.entry
diff --git a/include/asm-parisc/cache.h b/include/asm-parisc/cache.h
index ae50f8e12eed..c831665473cb 100644
--- a/include/asm-parisc/cache.h
+++ b/include/asm-parisc/cache.h
@@ -48,7 +48,7 @@ extern void flush_user_icache_range_asm(unsigned long, unsigned long);
 extern void flush_kernel_icache_range_asm(unsigned long, unsigned long);
 extern void flush_user_dcache_range_asm(unsigned long, unsigned long);
 extern void flush_kernel_dcache_range_asm(unsigned long, unsigned long);
-extern void flush_kernel_dcache_page(void *);
+extern void flush_kernel_dcache_page_asm(void *);
 extern void flush_kernel_icache_page(void *);
 extern void disable_sr_hashing(void);   /* turns off space register hashing */
 extern void disable_sr_hashing_asm(int); /* low level support for above */
diff --git a/include/asm-parisc/cacheflush.h b/include/asm-parisc/cacheflush.h
index 482be77551e3..76b6b7d6046a 100644
--- a/include/asm-parisc/cacheflush.h
+++ b/include/asm-parisc/cacheflush.h
@@ -62,7 +62,7 @@ extern void flush_dcache_page(struct page *page);
 #define flush_dcache_mmap_unlock(mapping) \
 	write_unlock_irq(&(mapping)->tree_lock)
 
-#define flush_icache_page(vma,page)	do { flush_kernel_dcache_page(page_address(page)); flush_kernel_icache_page(page_address(page)); } while (0)
+#define flush_icache_page(vma,page)	do { flush_kernel_dcache_page(page); flush_kernel_icache_page(page_address(page)); } while (0)
 
 #define flush_icache_range(s,e)		do { flush_kernel_dcache_range_asm(s,e); flush_kernel_icache_range_asm(s,e); } while (0)
 
@@ -192,6 +192,13 @@ flush_anon_page(struct page *page, unsigned long vmaddr)
 }
 #define ARCH_HAS_FLUSH_ANON_PAGE
 
+static inline void
+flush_kernel_dcache_page(struct page *page)
+{
+	flush_kernel_dcache_page_asm(page_address(page));
+}
+#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
+
 #ifdef CONFIG_DEBUG_RODATA
 void mark_rodata_ro(void);
 #endif
diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h
index 9f303c0c3cd7..c6c9d5793070 100644
--- a/include/asm-parisc/page.h
+++ b/include/asm-parisc/page.h
@@ -26,7 +26,7 @@ static inline void
 copy_user_page(void *vto, void *vfrom, unsigned long vaddr, struct page *pg)
 {
 	copy_user_page_asm(vto, vfrom);
-	flush_kernel_dcache_page(vto);
+	flush_kernel_dcache_page_asm(vto);
 	/* XXX: ppc flushes icache too, should we? */
 }
 
-- 
cgit v1.2.3


From b31059f7634931a06f6811247ae9217d1a833a46 Mon Sep 17 00:00:00 2001
From: Helge Deller
Date: Thu, 23 Mar 2006 15:48:15 -0700
Subject: [PARISC] Add STRICT_MM_TYPECHECKS

Add STRICT_MM_TYPECHECKS to page.h as other architectures do.

Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 include/asm-parisc/page.h | 56 +++++++++++++++++++++++++++++++++--------------
 1 file changed, 40 insertions(+), 16 deletions(-)

(limited to 'include')

diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h
index c6c9d5793070..45e02aa5bf4b 100644
--- a/include/asm-parisc/page.h
+++ b/include/asm-parisc/page.h
@@ -40,14 +40,19 @@ clear_user_page(void *page, unsigned long vaddr, struct page *pg)
 /*
  * These are used to make use of C type-checking..
  */
-#ifdef __LP64__
-typedef struct { unsigned long pte; } pte_t;
-#else
-typedef struct {
-	unsigned long pte;
-	unsigned long flags;
-} pte_t;
+#define STRICT_MM_TYPECHECKS
+#ifdef STRICT_MM_TYPECHECKS
+typedef struct { unsigned long pte;
+#if !defined(CONFIG_64BIT)
+                 unsigned long future_flags;
+ /* XXX: it's possible to remove future_flags and change BITS_PER_PTE_ENTRY
+	 to 2, but then strangely the identical 32bit kernel boots on a
+	 c3000(pa20), but not any longer on a 715(pa11).
+	 Still investigating... HelgeD.
+  */
 #endif
+} pte_t; /* either 32 or 64bit */
+
 /* NOTE: even on 64 bits, these entries are __u32 because we allocate
  * the pmd and pgd in ZONE_DMA (i.e. under 4GB) */
 typedef struct { __u32 pmd; } pmd_t;
@@ -55,25 +60,44 @@ typedef struct { __u32 pgd; } pgd_t;
 typedef struct { unsigned long pgprot; } pgprot_t;
 
 #define pte_val(x)	((x).pte)
-#ifdef __LP64__
-#define pte_flags(x)	(*(__u32 *)&((x).pte))
-#else
-#define pte_flags(x)	((x).flags)
-#endif
-
 /* These do not work lvalues, so make sure we don't use them as such. */
 #define pmd_val(x)	((x).pmd + 0)
 #define pgd_val(x)	((x).pgd + 0)
 #define pgprot_val(x)	((x).pgprot)
 
-#define __pmd_val_set(x,n) (x).pmd = (n)
-#define __pgd_val_set(x,n) (x).pgd = (n)
-
 #define __pte(x)	((pte_t) { (x) } )
 #define __pmd(x)	((pmd_t) { (x) } )
 #define __pgd(x)	((pgd_t) { (x) } )
 #define __pgprot(x)	((pgprot_t) { (x) } )
 
+#define __pmd_val_set(x,n) (x).pmd = (n)
+#define __pgd_val_set(x,n) (x).pgd = (n)
+
+#else
+/*
+ * .. while these make it easier on the compiler
+ */
+typedef unsigned long pte_t;
+typedef         __u32 pmd_t;
+typedef         __u32 pgd_t;
+typedef unsigned long pgprot_t;
+
+#define pte_val(x)      (x)
+#define pmd_val(x)      (x)
+#define pgd_val(x)      (x)
+#define pgprot_val(x)   (x)
+
+#define __pte(x)        (x)
+#define __pmd(x)	(x)
+#define __pgd(x)        (x)
+#define __pgprot(x)     (x)
+
+#define __pmd_val_set(x,n) (x) = (n)
+#define __pgd_val_set(x,n) (x) = (n)
+
+#endif /* STRICT_MM_TYPECHECKS */
+
+
 typedef struct __physmem_range {
 	unsigned long start_pfn;
 	unsigned long pages;       /* PAGE_SIZE pages */
-- 
cgit v1.2.3


From b8ce0aadcdebbaf5ec013c57e2a0803060817bcc Mon Sep 17 00:00:00 2001
From: Helge Deller
Date: Tue, 7 Mar 2006 14:12:13 -0700
Subject: [PARISC] Add CONFIG_HPPA_IOREMAP to conditionally enable ioremap

Instead of making it a #define in asm/io.h, allow user to select
to turn on IOREMAP from the config menu.

Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 arch/parisc/Kconfig      | 11 +++++++++++
 arch/parisc/mm/ioremap.c | 13 ++++++-------
 include/asm-parisc/io.h  | 16 +++++-----------
 3 files changed, 22 insertions(+), 18 deletions(-)

(limited to 'include')

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 6b3c50964ca9..fc5755d1db57 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -138,6 +138,17 @@ config 64BIT
 	  enable this option otherwise. The 64bit kernel is significantly bigger
 	  and slower than the 32bit one.
 
+config HPPA_IOREMAP
+	bool "Enable IOREMAP functionality (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	default n
+	help
+	  Enable this option if you want to enable real IOREMAPPING on PA-RISC.
+	  Currently we just "simulate" I/O remapping, and enabling this option
+	  will just crash your machine.
+
+	  Say N here, unless you are a real PA-RISC Linux kernel hacker.
+
 config SMP
 	bool "Symmetric multi-processing support"
 	---help---
diff --git a/arch/parisc/mm/ioremap.c b/arch/parisc/mm/ioremap.c
index edd9a9559cba..028772144191 100644
--- a/arch/parisc/mm/ioremap.c
+++ b/arch/parisc/mm/ioremap.c
@@ -72,7 +72,7 @@ remap_area_pmd(pmd_t *pmd, unsigned long address, unsigned long size,
 	return 0;
 }
 
-#if USE_HPPA_IOREMAP
+#ifdef CONFIG_HPPA_IOREMAP
 static int 
 remap_area_pages(unsigned long address, unsigned long phys_addr,
 		 unsigned long size, unsigned long flags)
@@ -114,7 +114,7 @@ remap_area_pages(unsigned long address, unsigned long phys_addr,
 
 	return error;
 }
-#endif /* USE_HPPA_IOREMAP */
+#endif /* CONFIG_HPPA_IOREMAP */
 
 #ifdef CONFIG_DEBUG_IOREMAP
 static unsigned long last = 0;
@@ -154,8 +154,7 @@ EXPORT_SYMBOL(__raw_bad_addr);
  */
 void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
 {
-#if !(USE_HPPA_IOREMAP)
-
+#if !defined(CONFIG_HPPA_IOREMAP)
 	unsigned long end = phys_addr + size - 1;
 	/* Support EISA addresses */
 	if ((phys_addr >= 0x00080000 && end < 0x000fffff)
@@ -222,10 +221,10 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
 
 void iounmap(void __iomem *addr)
 {
-#if !(USE_HPPA_IOREMAP)
-	return;
-#else
+#ifdef CONFIG_HPPA_IOREMAP
 	if (addr > high_memory)
 		return vfree((void *) (PAGE_MASK & (unsigned long __force) addr));
+#else
+	return;
 #endif
 }
diff --git a/include/asm-parisc/io.h b/include/asm-parisc/io.h
index be0c7234a6da..2fb253255102 100644
--- a/include/asm-parisc/io.h
+++ b/include/asm-parisc/io.h
@@ -26,11 +26,7 @@ extern unsigned long parisc_vmerge_max_size;
  */
 
 #ifdef CONFIG_DEBUG_IOREMAP
-#ifdef CONFIG_64BIT
-#define NYBBLE_SHIFT 60
-#else
-#define NYBBLE_SHIFT 28
-#endif
+#define NYBBLE_SHIFT (BITS_PER_LONG - 4)
 extern void gsc_bad_addr(unsigned long addr);
 extern void __raw_bad_addr(const volatile void __iomem *addr);
 #define gsc_check_addr(addr)					\
@@ -181,13 +177,11 @@ extern inline void * ioremap_nocache(unsigned long offset, unsigned long size)
 extern void iounmap(void __iomem *addr);
 
 /*
- * USE_HPPA_IOREMAP is the magic flag to enable or disable real ioremap()
+ * CONFIG_HPPA_IOREMAP is the magic flag to enable or disable real ioremap()
  * functionality.  It's currently disabled because it may not work on some
  * machines.
  */
-#define USE_HPPA_IOREMAP 0
-
-#if USE_HPPA_IOREMAP
+#ifdef CONFIG_HPPA_IOREMAP
 static inline unsigned char __raw_readb(const volatile void __iomem *addr)
 {
 	return (*(volatile unsigned char __force *) (addr));
@@ -221,7 +215,7 @@ static inline void __raw_writeq(unsigned long long b, volatile void __iomem *add
 {
 	*(volatile unsigned long long __force *) addr = b;
 }
-#else /* !USE_HPPA_IOREMAP */
+#else /* !CONFIG_HPPA_IOREMAP */
 static inline unsigned char __raw_readb(const volatile void __iomem *addr)
 {
 	__raw_check_addr(addr);
@@ -271,7 +265,7 @@ static inline void __raw_writeq(unsigned long long b, volatile void __iomem *add
 
 	gsc_writeq(b, (unsigned long) addr);
 }
-#endif /* !USE_HPPA_IOREMAP */
+#endif /* !CONFIG_HPPA_IOREMAP */
 
 /* readb can never be const, so use __fswab instead of le*_to_cpu */
 #define readb(addr) __raw_readb(addr)
-- 
cgit v1.2.3


From 29ef8295327653ff09a56285c35213cd31fa54b3 Mon Sep 17 00:00:00 2001
From: Helge Deller
Date: Thu, 23 Mar 2006 00:32:46 -0700
Subject: [PARISC] Enable ioremap functionality unconditionally

Enable CONFIG_HPPA_IOREMAP by default and remove all now unnecessary code.

Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 arch/parisc/Kconfig      | 11 ---------
 arch/parisc/mm/ioremap.c | 16 ++-----------
 include/asm-parisc/io.h  | 58 +-----------------------------------------------
 3 files changed, 3 insertions(+), 82 deletions(-)

(limited to 'include')

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index fc5755d1db57..6b3c50964ca9 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -138,17 +138,6 @@ config 64BIT
 	  enable this option otherwise. The 64bit kernel is significantly bigger
 	  and slower than the 32bit one.
 
-config HPPA_IOREMAP
-	bool "Enable IOREMAP functionality (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
-	default n
-	help
-	  Enable this option if you want to enable real IOREMAPPING on PA-RISC.
-	  Currently we just "simulate" I/O remapping, and enabling this option
-	  will just crash your machine.
-
-	  Say N here, unless you are a real PA-RISC Linux kernel hacker.
-
 config SMP
 	bool "Symmetric multi-processing support"
 	---help---
diff --git a/arch/parisc/mm/ioremap.c b/arch/parisc/mm/ioremap.c
index 028772144191..5a22e1cab217 100644
--- a/arch/parisc/mm/ioremap.c
+++ b/arch/parisc/mm/ioremap.c
@@ -72,7 +72,6 @@ remap_area_pmd(pmd_t *pmd, unsigned long address, unsigned long size,
 	return 0;
 }
 
-#ifdef CONFIG_HPPA_IOREMAP
 static int 
 remap_area_pages(unsigned long address, unsigned long phys_addr,
 		 unsigned long size, unsigned long flags)
@@ -114,7 +113,6 @@ remap_area_pages(unsigned long address, unsigned long phys_addr,
 
 	return error;
 }
-#endif /* CONFIG_HPPA_IOREMAP */
 
 #ifdef CONFIG_DEBUG_IOREMAP
 static unsigned long last = 0;
@@ -154,21 +152,16 @@ EXPORT_SYMBOL(__raw_bad_addr);
  */
 void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
 {
-#if !defined(CONFIG_HPPA_IOREMAP)
+#ifdef CONFIG_EISA
+	#error FIXME.
 	unsigned long end = phys_addr + size - 1;
 	/* Support EISA addresses */
 	if ((phys_addr >= 0x00080000 && end < 0x000fffff)
 			|| (phys_addr >= 0x00500000 && end < 0x03bfffff)) {
 		phys_addr |= 0xfc000000;
 	}
-
-#ifdef CONFIG_DEBUG_IOREMAP
-	return (void __iomem *)(phys_addr - (0x1UL << NYBBLE_SHIFT));
-#else
-	return (void __iomem *)phys_addr;
 #endif
 
-#else
 	void *addr;
 	struct vm_struct *area;
 	unsigned long offset, last_addr;
@@ -216,15 +209,10 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
 	}
 
 	return (void __iomem *) (offset + (char *)addr);
-#endif
 }
 
 void iounmap(void __iomem *addr)
 {
-#ifdef CONFIG_HPPA_IOREMAP
 	if (addr > high_memory)
 		return vfree((void *) (PAGE_MASK & (unsigned long __force) addr));
-#else
-	return;
-#endif
 }
diff --git a/include/asm-parisc/io.h b/include/asm-parisc/io.h
index 2fb253255102..bcfe0b09c93f 100644
--- a/include/asm-parisc/io.h
+++ b/include/asm-parisc/io.h
@@ -176,12 +176,7 @@ extern inline void * ioremap_nocache(unsigned long offset, unsigned long size)
 
 extern void iounmap(void __iomem *addr);
 
-/*
- * CONFIG_HPPA_IOREMAP is the magic flag to enable or disable real ioremap()
- * functionality.  It's currently disabled because it may not work on some
- * machines.
- */
-#ifdef CONFIG_HPPA_IOREMAP
+
 static inline unsigned char __raw_readb(const volatile void __iomem *addr)
 {
 	return (*(volatile unsigned char __force *) (addr));
@@ -215,57 +210,6 @@ static inline void __raw_writeq(unsigned long long b, volatile void __iomem *add
 {
 	*(volatile unsigned long long __force *) addr = b;
 }
-#else /* !CONFIG_HPPA_IOREMAP */
-static inline unsigned char __raw_readb(const volatile void __iomem *addr)
-{
-	__raw_check_addr(addr);
-
-	return gsc_readb((unsigned long) addr);
-}
-static inline unsigned short __raw_readw(const volatile void __iomem *addr)
-{
-	__raw_check_addr(addr);
-
-	return gsc_readw((unsigned long) addr);
-}
-static inline unsigned int __raw_readl(const volatile void __iomem *addr)
-{
-	__raw_check_addr(addr);
-
-	return gsc_readl((unsigned long) addr);
-}
-static inline unsigned long long __raw_readq(const volatile void __iomem *addr)
-{
-	__raw_check_addr(addr);
-
-	return gsc_readq((unsigned long) addr);
-}
-
-static inline void __raw_writeb(unsigned char b, volatile void __iomem *addr)
-{
-	__raw_check_addr(addr);
-
-	gsc_writeb(b, (unsigned long) addr);
-}
-static inline void __raw_writew(unsigned short b, volatile void __iomem *addr)
-{
-	__raw_check_addr(addr);
-
-	gsc_writew(b, (unsigned long) addr);
-}
-static inline void __raw_writel(unsigned int b, volatile void __iomem *addr)
-{
-	__raw_check_addr(addr);
-
-	gsc_writel(b, (unsigned long) addr);
-}
-static inline void __raw_writeq(unsigned long long b, volatile void __iomem *addr)
-{
-	__raw_check_addr(addr);
-
-	gsc_writeq(b, (unsigned long) addr);
-}
-#endif /* !CONFIG_HPPA_IOREMAP */
 
 /* readb can never be const, so use __fswab instead of le*_to_cpu */
 #define readb(addr) __raw_readb(addr)
-- 
cgit v1.2.3


From a41d3862dfd44a1b09a0f6243bb34773061fd9a2 Mon Sep 17 00:00:00 2001
From: Helge Deller
Date: Thu, 23 Mar 2006 01:07:00 -0700
Subject: [PARISC] Remove obsolete CONFIG_DEBUG_IOREMAP

Remove CONFIG_DEBUG_IOREMAP, it's now obsolete and won't work anyway.
Remove it from lib/KConfig since it was only available on parisc.

Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 arch/parisc/lib/iomap.c  |  4 ----
 arch/parisc/mm/ioremap.c | 24 ------------------------
 include/asm-parisc/io.h  | 33 ---------------------------------
 lib/Kconfig.debug        | 13 -------------
 4 files changed, 74 deletions(-)

(limited to 'include')

diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index 01bec8fcbd0d..f4a811690ab3 100644
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -263,11 +263,7 @@ static const struct iomap_ops iomem_ops = {
 
 const struct iomap_ops *iomap_ops[8] = {
 	[0] = &ioport_ops,
-#ifdef CONFIG_DEBUG_IOREMAP
-	[6] = &iomem_ops,
-#else
 	[7] = &iomem_ops
-#endif
 };
 
 
diff --git a/arch/parisc/mm/ioremap.c b/arch/parisc/mm/ioremap.c
index 21a16747e56e..a5967b7d3726 100644
--- a/arch/parisc/mm/ioremap.c
+++ b/arch/parisc/mm/ioremap.c
@@ -114,30 +114,6 @@ remap_area_pages(unsigned long address, unsigned long phys_addr,
 	return error;
 }
 
-#ifdef CONFIG_DEBUG_IOREMAP
-static unsigned long last = 0;
-
-void gsc_bad_addr(unsigned long addr)
-{
-	if (time_after(jiffies, last + HZ*10)) {
-		printk("gsc_foo() called with bad address 0x%lx\n", addr);
-		dump_stack();
-		last = jiffies;
-	}
-}
-EXPORT_SYMBOL(gsc_bad_addr);
-
-void __raw_bad_addr(const volatile void __iomem *addr)
-{
-	if (time_after(jiffies, last + HZ*10)) {
-		printk("__raw_foo() called with bad address 0x%p\n", addr);
-		dump_stack();
-		last = jiffies;
-	}
-}
-EXPORT_SYMBOL(__raw_bad_addr);
-#endif
-
 /*
  * Generic mapping function (not visible outside):
  */
diff --git a/include/asm-parisc/io.h b/include/asm-parisc/io.h
index bcfe0b09c93f..29da31194b91 100644
--- a/include/asm-parisc/io.h
+++ b/include/asm-parisc/io.h
@@ -25,31 +25,11 @@ extern unsigned long parisc_vmerge_max_size;
  *   eg dev->hpa or 0xfee00000.
  */
 
-#ifdef CONFIG_DEBUG_IOREMAP
-#define NYBBLE_SHIFT (BITS_PER_LONG - 4)
-extern void gsc_bad_addr(unsigned long addr);
-extern void __raw_bad_addr(const volatile void __iomem *addr);
-#define gsc_check_addr(addr)					\
-	if ((addr >> NYBBLE_SHIFT) != 0xf) {			\
-		gsc_bad_addr(addr);				\
-		addr |= 0xfUL << NYBBLE_SHIFT;			\
-	}
-#define __raw_check_addr(addr)					\
-	if (((unsigned long)addr >> NYBBLE_SHIFT) != 0xe)	\
-		__raw_bad_addr(addr);			\
-	addr = (void __iomem *)((unsigned long)addr | (0xfUL << NYBBLE_SHIFT));
-#else
-#define gsc_check_addr(addr)
-#define __raw_check_addr(addr)
-#endif
-
 static inline unsigned char gsc_readb(unsigned long addr)
 {
 	long flags;
 	unsigned char ret;
 
-	gsc_check_addr(addr);
-
 	__asm__ __volatile__(
 	"	rsm	2,%0\n"
 	"	ldbx	0(%2),%1\n"
@@ -64,8 +44,6 @@ static inline unsigned short gsc_readw(unsigned long addr)
 	long flags;
 	unsigned short ret;
 
-	gsc_check_addr(addr);
-
 	__asm__ __volatile__(
 	"	rsm	2,%0\n"
 	"	ldhx	0(%2),%1\n"
@@ -79,8 +57,6 @@ static inline unsigned int gsc_readl(unsigned long addr)
 {
 	u32 ret;
 
-	gsc_check_addr(addr);
-
 	__asm__ __volatile__(
 	"	ldwax	0(%1),%0\n"
 	: "=r" (ret) : "r" (addr) );
@@ -91,7 +67,6 @@ static inline unsigned int gsc_readl(unsigned long addr)
 static inline unsigned long long gsc_readq(unsigned long addr)
 {
 	unsigned long long ret;
-	gsc_check_addr(addr);
 
 #ifdef __LP64__
 	__asm__ __volatile__(
@@ -108,8 +83,6 @@ static inline unsigned long long gsc_readq(unsigned long addr)
 static inline void gsc_writeb(unsigned char val, unsigned long addr)
 {
 	long flags;
-	gsc_check_addr(addr);
-
 	__asm__ __volatile__(
 	"	rsm	2,%0\n"
 	"	stbs	%1,0(%2)\n"
@@ -120,8 +93,6 @@ static inline void gsc_writeb(unsigned char val, unsigned long addr)
 static inline void gsc_writew(unsigned short val, unsigned long addr)
 {
 	long flags;
-	gsc_check_addr(addr);
-
 	__asm__ __volatile__(
 	"	rsm	2,%0\n"
 	"	sths	%1,0(%2)\n"
@@ -131,8 +102,6 @@ static inline void gsc_writew(unsigned short val, unsigned long addr)
 
 static inline void gsc_writel(unsigned int val, unsigned long addr)
 {
-	gsc_check_addr(addr);
-
 	__asm__ __volatile__(
 	"	stwas	%0,0(%1)\n"
 	: :  "r" (val), "r" (addr) );
@@ -140,8 +109,6 @@ static inline void gsc_writel(unsigned int val, unsigned long addr)
 
 static inline void gsc_writeq(unsigned long long val, unsigned long addr)
 {
-	gsc_check_addr(addr);
-
 #ifdef __LP64__
 	__asm__ __volatile__(
 	"	stda	%0,0(%1)\n"
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 6e8a60f67c7a..d57fd9181b18 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -157,19 +157,6 @@ config DEBUG_INFO
 
 	  If unsure, say N.
 
-config DEBUG_IOREMAP
-	bool "Enable ioremap() debugging"
-	depends on DEBUG_KERNEL && PARISC
-	help
-	  Enabling this option will cause the kernel to distinguish between
-	  ioremapped and physical addresses.  It will print a backtrace (at
-	  most one every 10 seconds), hopefully allowing you to see which
-	  drivers need work.  Fixing all these problems is a prerequisite
-	  for turning on USE_HPPA_IOREMAP.  The warnings are harmless;
-	  the kernel has enough information to fix the broken drivers
-	  automatically, but we'd like to make it more efficient by not
-	  having to do that.
-
 config DEBUG_FS
 	bool "Debug Filesystem"
 	depends on SYSFS
-- 
cgit v1.2.3


From 10267cdd0c2dee46a3f59d93fbfac7229d416dba Mon Sep 17 00:00:00 2001
From: Helge Deller
Date: Sun, 26 Mar 2006 01:54:16 -0700
Subject: [PARISC] Fixup CONFIG_EISA a bit

Fix up some ISA/EISA stuff.

(Note: isa_ accessors have been removed from asm/io.h)

Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 arch/parisc/mm/ioremap.c | 8 +++-----
 include/asm-parisc/pci.h | 5 +++++
 2 files changed, 8 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/arch/parisc/mm/ioremap.c b/arch/parisc/mm/ioremap.c
index a5967b7d3726..5067ea90d91a 100644
--- a/arch/parisc/mm/ioremap.c
+++ b/arch/parisc/mm/ioremap.c
@@ -135,11 +135,9 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
 #ifdef CONFIG_EISA
 	unsigned long end = phys_addr + size - 1;
 	/* Support EISA addresses */
-	if ((phys_addr >= 0x00080000 && end < 0x000fffff)
-			|| (phys_addr >= 0x00500000 && end < 0x03bfffff)) {
-		phys_addr |= 0xfc000000;
-#warning "FIXME: EISA regions do not work yet..."
-		return NULL;  /* XXX */
+	if ((phys_addr >= 0x00080000 && end < 0x000fffff) ||
+	    (phys_addr >= 0x00500000 && end < 0x03bfffff)) {
+		phys_addr |= F_EXTEND(0xfc000000);
 	}
 #endif
 
diff --git a/include/asm-parisc/pci.h b/include/asm-parisc/pci.h
index fe7f6a2f5aa7..77bbafb7f73e 100644
--- a/include/asm-parisc/pci.h
+++ b/include/asm-parisc/pci.h
@@ -289,4 +289,9 @@ static inline void pcibios_add_platform_entries(struct pci_dev *dev)
 {
 }
 
+static inline void pcibios_penalize_isa_irq(int irq, int active)
+{
+	/* We don't need to penalize isa irq's */
+}
+
 #endif /* __ASM_PARISC_PCI_H */
-- 
cgit v1.2.3


From bc8846c522264d2522b0082321ec8c2051a4536f Mon Sep 17 00:00:00 2001
From: Kyle McMartin
Date: Fri, 24 Mar 2006 21:22:02 -0700
Subject: [PARISC] More useful readwrite lock helpers

spinlock.c needs _can_lock helpers. Rewrite _is_locked helpers to be
_can_lock helpers.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 include/asm-parisc/spinlock.h | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/include/asm-parisc/spinlock.h b/include/asm-parisc/spinlock.h
index 16c2ac075fc5..a93960e232cf 100644
--- a/include/asm-parisc/spinlock.h
+++ b/include/asm-parisc/spinlock.h
@@ -134,14 +134,22 @@ static  __inline__ int __raw_write_trylock(raw_rwlock_t *rw)
 	return 1;
 }
 
-static __inline__ int __raw_is_read_locked(raw_rwlock_t *rw)
+/*
+ * read_can_lock - would read_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
+static __inline__ int __raw_read_can_lock(raw_rwlock_t *rw)
 {
-	return rw->counter > 0;
+	return rw->counter >= 0;
 }
 
-static __inline__ int __raw_is_write_locked(raw_rwlock_t *rw)
+/*
+ * write_can_lock - would write_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
+static __inline__ int __raw_write_can_lock(raw_rwlock_t *rw)
 {
-	return rw->counter < 0;
+	return !rw->counter;
 }
 
 #endif /* __ASM_SPINLOCK_H */
-- 
cgit v1.2.3


From 50a34dbd612925f2ec55b1781632835ef36b97d5 Mon Sep 17 00:00:00 2001
From: Kyle McMartin
Date: Fri, 24 Mar 2006 21:24:21 -0700
Subject: [PARISC] Add PREEMPT support

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 arch/parisc/Kconfig              |  6 +-----
 arch/parisc/kernel/entry.S       | 39 ++++++++++++++++++++++++++++++++++++---
 include/asm-parisc/thread_info.h |  3 ++-
 3 files changed, 39 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 6b3c50964ca9..2fdf21989dc2 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -177,14 +177,10 @@ config ARCH_DISCONTIGMEM_DEFAULT
 	def_bool y
 	depends on ARCH_DISCONTIGMEM_ENABLE
 
+source "kernel/Kconfig.preempt"
 source "kernel/Kconfig.hz"
 source "mm/Kconfig"
 
-config PREEMPT
-	bool
-#	bool "Preemptible Kernel"
-	default n
-
 config COMPAT
 	def_bool y
 	depends on 64BIT
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 6d17c0a3431b..7c95d7663c29 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1014,14 +1014,21 @@ intr_restore:
 	nop
 	nop
 
+#ifndef CONFIG_PREEMPT
+# define intr_do_preempt	intr_restore
+#endif /* !CONFIG_PREEMPT */
+
 	.import schedule,code
 intr_do_resched:
-	/* Only do reschedule if we are returning to user space */
+	/* Only call schedule on return to userspace. If we're returning
+	 * to kernel space, we may schedule if CONFIG_PREEMPT, otherwise
+	 * we jump back to intr_restore.
+	 */
 	LDREG	PT_IASQ0(%r16), %r20
-	CMPIB= 0,%r20,intr_restore /* backward */
+	CMPIB=	0, %r20, intr_do_preempt
 	nop
 	LDREG	PT_IASQ1(%r16), %r20
-	CMPIB= 0,%r20,intr_restore /* backward */
+	CMPIB=	0, %r20, intr_do_preempt
 	nop
 
 #ifdef CONFIG_64BIT
@@ -1037,6 +1044,32 @@ intr_do_resched:
 #endif
 	ldo	R%intr_check_sig(%r2), %r2
 
+	/* preempt the current task on returning to kernel
+	 * mode from an interrupt, iff need_resched is set,
+	 * and preempt_count is 0. otherwise, we continue on
+	 * our merry way back to the current running task.
+	 */
+#ifdef CONFIG_PREEMPT
+	.import preempt_schedule_irq,code
+intr_do_preempt:
+	rsm	PSW_SM_I, %r0		/* disable interrupts */
+
+	/* current_thread_info()->preempt_count */
+	mfctl	%cr30, %r1
+	LDREG	TI_PRE_COUNT(%r1), %r19
+	CMPIB<>	0, %r19, intr_restore	/* if preempt_count > 0 */
+	nop				/* prev insn branched backwards */
+
+	/* check if we interrupted a critical path */
+	LDREG	PT_PSW(%r16), %r20
+	bb,<,n	%r20, 31 - PSW_SM_I, intr_restore
+	nop
+
+	BL	preempt_schedule_irq, %r2
+	nop
+
+	b	intr_restore		/* ssm PSW_SM_I done by intr_restore */
+#endif /* CONFIG_PREEMPT */
 
 	.import do_signal,code
 intr_do_signal:
diff --git a/include/asm-parisc/thread_info.h b/include/asm-parisc/thread_info.h
index ac32f140b83a..f2f83b04cd8b 100644
--- a/include/asm-parisc/thread_info.h
+++ b/include/asm-parisc/thread_info.h
@@ -49,7 +49,8 @@ struct thread_info {
 
 #endif /* !__ASSEMBLY */
 
-#define PREEMPT_ACTIVE          0x10000000
+#define PREEMPT_ACTIVE_BIT	28
+#define PREEMPT_ACTIVE		(1 << PREEMPT_ACTIVE_BIT)
 
 /*
  * thread information flags
-- 
cgit v1.2.3


From 2746ae14fe55f9483ae94ef89d4495d0eb8ee03d Mon Sep 17 00:00:00 2001
From: Kyle McMartin
Date: Wed, 29 Mar 2006 07:04:49 -0700
Subject: [PARISC] Make local_t use atomic_long_t

As done in asm-generic/local.h in mainline. Otherwise local_t was 32-bit
even on a 64-bit kernel.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 include/asm-parisc/local.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

(limited to 'include')

diff --git a/include/asm-parisc/local.h b/include/asm-parisc/local.h
index 892b3b2c4962..d0f550912755 100644
--- a/include/asm-parisc/local.h
+++ b/include/asm-parisc/local.h
@@ -4,16 +4,16 @@
 #include <linux/percpu.h>
 #include <asm/atomic.h>
 
-typedef atomic_t local_t;
+typedef atomic_long_t local_t;
 
-#define LOCAL_INIT(i)	ATOMIC_INIT(i)
-#define local_read(v)	atomic_read(v)
-#define local_set(v,i)	atomic_set(v,i)
+#define LOCAL_INIT(i)	ATOMIC_LONG_INIT(i)
+#define local_read(v)	atomic_long_read(v)
+#define local_set(v,i)	atomic_long_set(v,i)
 
-#define local_inc(v)	atomic_inc(v)
-#define local_dec(v)	atomic_dec(v)
-#define local_add(i, v)	atomic_add(i, v)
-#define local_sub(i, v)	atomic_sub(i, v)
+#define local_inc(v)	atomic_long_inc(v)
+#define local_dec(v)	atomic_long_dec(v)
+#define local_add(i, v)	atomic_long_add(i, v)
+#define local_sub(i, v)	atomic_long_sub(i, v)
 
 #define __local_inc(v)		((v)->counter++)
 #define __local_dec(v)		((v)->counter--)
-- 
cgit v1.2.3


From 4da9f131a74d12de56c44da6d522a9116da06805 Mon Sep 17 00:00:00 2001
From: Kyle McMartin
Date: Wed, 29 Mar 2006 19:47:32 -0500
Subject: [PARISC] Add atomic_sub_and_test

Define atomic_sub_and_test to fix build failures.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 include/asm-parisc/atomic.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'include')

diff --git a/include/asm-parisc/atomic.h b/include/asm-parisc/atomic.h
index 4dc7253ff5d0..403ea97316cf 100644
--- a/include/asm-parisc/atomic.h
+++ b/include/asm-parisc/atomic.h
@@ -210,6 +210,8 @@ static __inline__ int atomic_read(const atomic_t *v)
 
 #define atomic_dec_and_test(v)	(atomic_dec_return(v) == 0)
 
+#define atomic_sub_and_test(i,v)	(atomic_sub_return((i),(v)) == 0)
+
 #define ATOMIC_INIT(i)	((atomic_t) { (i) })
 
 #define smp_mb__before_atomic_dec()	smp_mb()
@@ -267,6 +269,7 @@ atomic64_read(const atomic64_t *v)
 
 #define atomic64_inc_and_test(v) 	(atomic64_inc_return(v) == 0)
 #define atomic64_dec_and_test(v)	(atomic64_dec_return(v) == 0)
+#define atomic64_sub_and_test(i,v)	(atomic64_sub_return((i),(v)) == 0)
 
 #endif /* __LP64__ */
 
-- 
cgit v1.2.3