Merge tag 'asm-generic-6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic updates from Arnd Bergmann:
 "This is mainly set of cleanups of asm-generic/io.h, resolving problems
  with inconsistent semantics of ioread64/iowrite64 that were causing
  runtime and build issues.

  The "GENERIC_IOMAP" version that switches between inb()/outb() and
  readb()/writeb() style accessors is now only used on architectures
  that have PC-style ISA devices that are not memory mapped (x86, uml,
  m68k-q40 and powerpc-powernv), while alpha and parisc use a more
  complicated variant and everything else just maps the ioread
  interfaces to plan MMIO (readb/writeb etc).

  In addition there are two small changes from Raag Jadav to simplify
  the asm-generic/io.h indirect inclusions and from Jann Horn to fix a
  corner case with read_word_at_a_time"

* tag 'asm-generic-6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  rwonce: fix crash by removing READ_ONCE() for unaligned read
  rwonce: handle KCSAN like KASAN in read_word_at_a_time()
  m68k: coldfire: select PCI_IOMAP for PCI
  mips: export pci_iounmap()
  mips: fix PCI_IOBASE definition
  m68k/nommu: stop using GENERIC_IOMAP
  mips: drop GENERIC_IOMAP wrapper
  powerpc: asm/io.h: remove split ioread64/iowrite64 helpers
  parisc: stop using asm-generic/iomap.h
  sh: remove duplicate ioread/iowrite helpers
  alpha: stop using asm-generic/iomap.h
  io.h: drop unused headers
  drm/draw: include missing headers
  asm-generic/io.h: rework split ioread64/iowrite64 helpers

1 files changed, 27 insertions, 9 deletions

diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index 3143cf29ce27..59d85d2386bb 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -227,36 +227,54 @@ extern void outsl (unsigned long port, const void *src, unsigned long count);
 #define F_EXTEND(x) ((unsigned long)((x) | (0xffffffff00000000ULL)))
 
 #ifdef CONFIG_64BIT
-#define ioread64 ioread64
-#define ioread64be ioread64be
-#define iowrite64 iowrite64
-#define iowrite64be iowrite64be
 extern u64 ioread64(const void __iomem *addr);
 extern u64 ioread64be(const void __iomem *addr);
+#define ioread64 ioread64
+#define ioread64be ioread64be
+
 extern void iowrite64(u64 val, void __iomem *addr);
 extern void iowrite64be(u64 val, void __iomem *addr);
+#define iowrite64 iowrite64
+#define iowrite64be iowrite64be
 #endif
 
-#include <asm-generic/iomap.h>
-/*
- * These get provided from <asm-generic/iomap.h> since parisc does not
- * select GENERIC_IOMAP.
- */
+extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
+extern void ioport_unmap(void __iomem *);
 #define ioport_map ioport_map
 #define ioport_unmap ioport_unmap
+
+extern unsigned int ioread8(const void __iomem *);
+extern unsigned int ioread16(const void __iomem *);
+extern unsigned int ioread16be(const void __iomem *);
+extern unsigned int ioread32(const void __iomem *);
+extern unsigned int ioread32be(const void __iomem *);
 #define ioread8 ioread8
 #define ioread16 ioread16
 #define ioread32 ioread32
 #define ioread16be ioread16be
 #define ioread32be ioread32be
+
+extern void iowrite8(u8, void __iomem *);
+extern void iowrite16(u16, void __iomem *);
+extern void iowrite16be(u16, void __iomem *);
+extern void iowrite32(u32, void __iomem *);
+extern void iowrite32be(u32, void __iomem *);
 #define iowrite8 iowrite8
 #define iowrite16 iowrite16
 #define iowrite32 iowrite32
 #define iowrite16be iowrite16be
 #define iowrite32be iowrite32be
+
+extern void ioread8_rep(const void __iomem *port, void *buf, unsigned long count);
+extern void ioread16_rep(const void __iomem *port, void *buf, unsigned long count);
+extern void ioread32_rep(const void __iomem *port, void *buf, unsigned long count);
 #define ioread8_rep ioread8_rep
 #define ioread16_rep ioread16_rep
 #define ioread32_rep ioread32_rep
+
+extern void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count);
+extern void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count);
+extern void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count);
 #define iowrite8_rep iowrite8_rep
 #define iowrite16_rep iowrite16_rep
 #define iowrite32_rep iowrite32_rep