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-rw-r--r--include/asm-generic/gpio.h4
-rw-r--r--include/asm-generic/io.h6
-rw-r--r--include/asm-generic/iomap.h9
-rw-r--r--include/asm-generic/page.h10
-rw-r--r--include/asm-generic/param.h13
-rw-r--r--include/asm-generic/pci_iomap.h25
-rw-r--r--include/asm-generic/tlb.h14
-rw-r--r--include/asm-generic/uaccess.h7
8 files changed, 69 insertions, 19 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index d466c8d8826..1ff4e221cb4 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -177,6 +177,10 @@ extern int gpio_request_one(unsigned gpio, unsigned long flags, const char *labe
extern int gpio_request_array(const struct gpio *array, size_t num);
extern void gpio_free_array(const struct gpio *array, size_t num);
+/* bindings for managed devices that want to request gpios */
+int devm_gpio_request(struct device *dev, unsigned gpio, const char *label);
+void devm_gpio_free(struct device *dev, unsigned int gpio);
+
#ifdef CONFIG_GPIO_SYSFS
/*
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 912088773a6..448303bdb85 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -19,6 +19,8 @@
#include <asm-generic/iomap.h>
#endif
+#include <asm-generic/pci_iomap.h>
+
#ifndef mmiowb
#define mmiowb() do {} while (0)
#endif
@@ -283,9 +285,7 @@ static inline void writesb(const void __iomem *addr, const void *buf, int len)
#define __io_virt(x) ((void __force *) (x))
#ifndef CONFIG_GENERIC_IOMAP
-/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
{
}
@@ -327,7 +327,7 @@ static inline void __iomem *ioremap(phys_addr_t offset, unsigned long size)
#define ioremap_wc ioremap_nocache
#endif
-static inline void iounmap(void *addr)
+static inline void iounmap(void __iomem *addr)
{
}
#endif /* CONFIG_MMU */
diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index 98dcd76ce83..8a3d4fde260 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -67,18 +67,15 @@ extern void ioport_unmap(void __iomem *);
#endif
#ifdef CONFIG_PCI
-/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
+/* Destroy a virtual mapping cookie for a PCI BAR (memory or IO) */
struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
#else
struct pci_dev;
-static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
- return NULL;
-}
static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
{ }
#endif
+#include <asm-generic/pci_iomap.h>
+
#endif
diff --git a/include/asm-generic/page.h b/include/asm-generic/page.h
index 351889d1de1..37d1fe28960 100644
--- a/include/asm-generic/page.h
+++ b/include/asm-generic/page.h
@@ -71,10 +71,14 @@ extern unsigned long memory_end;
#define PAGE_OFFSET (0)
#endif
+#ifndef ARCH_PFN_OFFSET
+#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
+#endif
+
#ifndef __ASSEMBLY__
-#define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET))
-#define __pa(x) ((unsigned long) (x) - PAGE_OFFSET)
+#define __va(x) ((void *)((unsigned long) (x)))
+#define __pa(x) ((unsigned long) (x))
#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
@@ -86,7 +90,7 @@ extern unsigned long memory_end;
#define page_to_phys(page) ((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT)
#endif
-#define pfn_valid(pfn) ((pfn) < max_mapnr)
+#define pfn_valid(pfn) ((pfn) >= ARCH_PFN_OFFSET && ((pfn) - ARCH_PFN_OFFSET) < max_mapnr)
#define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
((void *)(kaddr) < (void *)memory_end))
diff --git a/include/asm-generic/param.h b/include/asm-generic/param.h
index cdf8251bfb6..835632a3b46 100644
--- a/include/asm-generic/param.h
+++ b/include/asm-generic/param.h
@@ -1,12 +1,6 @@
#ifndef __ASM_GENERIC_PARAM_H
#define __ASM_GENERIC_PARAM_H
-#ifdef __KERNEL__
-# define HZ CONFIG_HZ /* Internal kernel timer frequency */
-# define USER_HZ 100 /* some user interfaces are */
-# define CLOCKS_PER_SEC (USER_HZ) /* in "ticks" like times() */
-#endif
-
#ifndef HZ
#define HZ 100
#endif
@@ -21,4 +15,11 @@
#define MAXHOSTNAMELEN 64 /* max length of hostname */
+#ifdef __KERNEL__
+# undef HZ
+# define HZ CONFIG_HZ /* Internal kernel timer frequency */
+# define USER_HZ 100 /* some user interfaces are */
+# define CLOCKS_PER_SEC (USER_HZ) /* in "ticks" like times() */
+#endif
+
#endif /* __ASM_GENERIC_PARAM_H */
diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h
new file mode 100644
index 00000000000..8de4b73e19e
--- /dev/null
+++ b/include/asm-generic/pci_iomap.h
@@ -0,0 +1,25 @@
+/* Generic I/O port emulation, based on MN10300 code
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef __ASM_GENERIC_PCI_IOMAP_H
+#define __ASM_GENERIC_PCI_IOMAP_H
+
+struct pci_dev;
+#ifdef CONFIG_PCI
+/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
+extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
+#else
+static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
+{
+ return NULL;
+}
+#endif
+
+#endif /* __ASM_GENERIC_IO_H */
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
index e58fa777fa0..f96a5b58a97 100644
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -139,6 +139,20 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page)
__tlb_remove_tlb_entry(tlb, ptep, address); \
} while (0)
+/**
+ * tlb_remove_pmd_tlb_entry - remember a pmd mapping for later tlb invalidation
+ * This is a nop so far, because only x86 needs it.
+ */
+#ifndef __tlb_remove_pmd_tlb_entry
+#define __tlb_remove_pmd_tlb_entry(tlb, pmdp, address) do {} while (0)
+#endif
+
+#define tlb_remove_pmd_tlb_entry(tlb, pmdp, address) \
+ do { \
+ tlb->need_flush = 1; \
+ __tlb_remove_pmd_tlb_entry(tlb, pmdp, address); \
+ } while (0)
+
#define pte_free_tlb(tlb, ptep, address) \
do { \
tlb->need_flush = 1; \
diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
index ac68c999b6c..9788568f797 100644
--- a/include/asm-generic/uaccess.h
+++ b/include/asm-generic/uaccess.h
@@ -289,9 +289,14 @@ strncpy_from_user(char *dst, const char __user *src, long count)
* Return 0 on exception, a value greater than N if too long
*/
#ifndef __strnlen_user
-#define __strnlen_user strnlen
+#define __strnlen_user(s, n) (strnlen((s), (n)) + 1)
#endif
+/*
+ * Unlike strnlen, strnlen_user includes the nul terminator in
+ * its returned count. Callers should check for a returned value
+ * greater than N as an indication the string is too long.
+ */
static inline long strnlen_user(const char __user *src, long n)
{
if (!access_ok(VERIFY_READ, src, 1))
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-01-05 03:19:00 +0000