@@ -92,6 +92,9 @@ config MIPS
select SYSCTL_EXCEPTION_TRACE
select VIRT_TO_BUS
+config MIPS_FIXUP_BIGPHYS_ADDR
+ bool
+
menu "Machine selection"
choice
@@ -157,6 +160,7 @@ config MIPS_ALCHEMY
select CSRC_R4K
select IRQ_MIPS_CPU
select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
+ select MIPS_FIXUP_BIGPHYS_ADDR if PCI
select SYS_HAS_CPU_MIPS32_R1
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_APM_EMULATION
@@ -72,9 +72,9 @@ void __init plat_mem_setup(void)
iomem_resource.end = IOMEM_RESOURCE_END;
}
-#if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_PCI)
+#ifdef CONFIG_MIPS_FIXUP_BIGPHYS_ADDR
/* This routine should be valid for all Au1x based boards */
-phys_addr_t __fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
+phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
{
unsigned long start = ALCHEMY_PCI_MEMWIN_START;
unsigned long end = ALCHEMY_PCI_MEMWIN_END;
@@ -90,5 +90,13 @@ phys_addr_t __fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
/* default nop */
return phys_addr;
}
-EXPORT_SYMBOL(__fixup_bigphys_addr);
-#endif
+
+int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long vaddr,
+ unsigned long pfn, unsigned long size, pgprot_t prot)
+{
+ phys_addr_t phys_addr = fixup_bigphys_addr(pfn << PAGE_SHIFT, size);
+
+ return remap_pfn_range(vma, vaddr, phys_addr >> PAGE_SHIFT, size, prot);
+}
+EXPORT_SYMBOL(io_remap_pfn_range);
+#endif /* CONFIG_MIPS_FIXUP_BIGPHYS_ADDR */
deleted file mode 100644
@@ -1,38 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * include/asm-mips/mach-au1x00/ioremap.h
- */
-#ifndef __ASM_MACH_AU1X00_IOREMAP_H
-#define __ASM_MACH_AU1X00_IOREMAP_H
-
-#include <linux/types.h>
-
-#if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_PCI)
-extern phys_addr_t __fixup_bigphys_addr(phys_addr_t, phys_addr_t);
-#else
-static inline phys_addr_t __fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
-{
- return phys_addr;
-}
-#endif
-
-/*
- * Allow physical addresses to be fixed up to help 36-bit peripherals.
- */
-static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
-{
- return __fixup_bigphys_addr(phys_addr, size);
-}
-
-static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
- unsigned long flags)
-{
- return NULL;
-}
-
-static inline int plat_iounmap(const volatile void __iomem *addr)
-{
- return 0;
-}
-
-#endif /* __ASM_MACH_AU1X00_IOREMAP_H */
@@ -4,11 +4,6 @@
#include <bcm63xx_cpu.h>
-static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
-{
- return phys_addr;
-}
-
static inline int is_bcm63xx_internal_registers(phys_addr_t offset)
{
switch (bcm63xx_get_cpu_id()) {
@@ -4,11 +4,6 @@
#include <linux/types.h>
-static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
-{
- return phys_addr;
-}
-
static inline int is_bmips_internal_registers(phys_addr_t offset)
{
if (offset >= 0xfff80000)
@@ -7,15 +7,6 @@
#include <linux/types.h>
-/*
- * Allow physical addresses to be fixed up to help peripherals located
- * outside the low 32-bit range -- generic pass-through version.
- */
-static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
-{
- return phys_addr;
-}
-
static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
unsigned long flags)
{
@@ -7,15 +7,6 @@
#include <linux/types.h>
-/*
- * Allow physical addresses to be fixed up to help peripherals located
- * outside the low 32-bit range -- generic pass-through version.
- */
-static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
-{
- return phys_addr;
-}
-
static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
unsigned long flags)
{
@@ -7,15 +7,6 @@
#include <linux/types.h>
-/*
- * Allow physical addresses to be fixed up to help peripherals located
- * outside the low 32-bit range -- generic pass-through version.
- */
-static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
-{
- return phys_addr;
-}
-
static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
unsigned long flags)
{
@@ -491,20 +491,17 @@ static inline void update_mmu_cache_pmd(struct vm_area_struct *vma,
#define kern_addr_valid(addr) (1)
-#ifdef CONFIG_PHYS_ADDR_T_64BIT
-extern int remap_pfn_range(struct vm_area_struct *vma, unsigned long from, unsigned long pfn, unsigned long size, pgprot_t prot);
-
-static inline int io_remap_pfn_range(struct vm_area_struct *vma,
- unsigned long vaddr,
- unsigned long pfn,
- unsigned long size,
- pgprot_t prot)
-{
- phys_addr_t phys_addr_high = fixup_bigphys_addr(pfn << PAGE_SHIFT, size);
- return remap_pfn_range(vma, vaddr, phys_addr_high >> PAGE_SHIFT, size, prot);
-}
+/*
+ * Allow physical addresses to be fixed up to help 36-bit peripherals.
+ */
+#ifdef CONFIG_MIPS_FIXUP_BIGPHYS_ADDR
+phys_addr_t fixup_bigphys_addr(phys_addr_t addr, phys_addr_t size);
+int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long vaddr,
+ unsigned long pfn, unsigned long size, pgprot_t prot);
#define io_remap_pfn_range io_remap_pfn_range
-#endif
+#else
+#define fixup_bigphys_addr(addr, size) (addr)
+#endif /* CONFIG_MIPS_FIXUP_BIGPHYS_ADDR */
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
@@ -52,7 +52,7 @@ struct alchemy_pci_context {
static struct alchemy_pci_context *__alchemy_pci_ctx;
-/* IO/MEM resources for PCI. Keep the memres in sync with __fixup_bigphys_addr
+/* IO/MEM resources for PCI. Keep the memres in sync with fixup_bigphys_addr
* in arch/mips/alchemy/common/setup.c
*/
static struct resource alchemy_pci_def_memres = {
fixup_bigphys_addr is only provided by the alchemy platform. Remove all the stubs, and ensure we only call it if it is actually implemented. Also don't bother implementing io_remap_pfn_range if we don't have to, and move the remaining implementation to alchemy platform code. Signed-off-by: Christoph Hellwig <hch@lst.de> --- arch/mips/Kconfig | 4 +++ arch/mips/alchemy/common/setup.c | 16 ++++++--- arch/mips/include/asm/mach-au1x00/ioremap.h | 38 -------------------- arch/mips/include/asm/mach-bcm63xx/ioremap.h | 5 --- arch/mips/include/asm/mach-bmips/ioremap.h | 5 --- arch/mips/include/asm/mach-generic/ioremap.h | 9 ----- arch/mips/include/asm/mach-tx39xx/ioremap.h | 9 ----- arch/mips/include/asm/mach-tx49xx/ioremap.h | 9 ----- arch/mips/include/asm/pgtable.h | 23 ++++++------ arch/mips/pci/pci-alchemy.c | 2 +- 10 files changed, 27 insertions(+), 93 deletions(-) delete mode 100644 arch/mips/include/asm/mach-au1x00/ioremap.h