mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 22:35:37 +07:00
ee03c5868e
The following commit:
1b3d4200c1 ("PCI: Add pci_iomap_wc() variants")
Introduced pci_iomap_wc() variants but broke the s390 build,
because s390 requires its own implementation of pcio_iomap*()
calls.
The reason for that is that:
"BAR spaces are not disjunctive on s390 so we need the bar
parameter of pci_iomap to find the corresponding device
and create the mapping cookie"
so it has its own lookup/lock solution and it does not include
asm-generic/pci_iomap.h.
Since it currenty maps ioremap_wc() to ioremap_nocache() and
that's the architecture default we can easily just map the wc
calls to the default calls as well.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Frank Blaschka <frank.blaschka@de.ibm.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linux390@de.ibm.com
Link: http://lkml.kernel.org/r/1440632050-23648-1-git-send-email-mcgrof@do-not-panic.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
81 lines
2.0 KiB
C
81 lines
2.0 KiB
C
/*
|
|
* S390 version
|
|
* Copyright IBM Corp. 1999
|
|
* Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
|
|
*
|
|
* Derived from "include/asm-i386/io.h"
|
|
*/
|
|
|
|
#ifndef _S390_IO_H
|
|
#define _S390_IO_H
|
|
|
|
#include <linux/kernel.h>
|
|
#include <asm/page.h>
|
|
#include <asm/pci_io.h>
|
|
|
|
#define xlate_dev_mem_ptr xlate_dev_mem_ptr
|
|
void *xlate_dev_mem_ptr(phys_addr_t phys);
|
|
#define unxlate_dev_mem_ptr unxlate_dev_mem_ptr
|
|
void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr);
|
|
|
|
/*
|
|
* Convert a virtual cached pointer to an uncached pointer
|
|
*/
|
|
#define xlate_dev_kmem_ptr(p) p
|
|
|
|
#define IO_SPACE_LIMIT 0
|
|
|
|
#ifdef CONFIG_PCI
|
|
|
|
#define ioremap_nocache(addr, size) ioremap(addr, size)
|
|
#define ioremap_wc ioremap_nocache
|
|
#define ioremap_wt ioremap_nocache
|
|
|
|
static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
|
|
{
|
|
return (void __iomem *) offset;
|
|
}
|
|
|
|
static inline void iounmap(volatile void __iomem *addr)
|
|
{
|
|
}
|
|
|
|
static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline void ioport_unmap(void __iomem *p)
|
|
{
|
|
}
|
|
|
|
/*
|
|
* s390 needs a private implementation of pci_iomap since ioremap with its
|
|
* offset parameter isn't sufficient. That's because BAR spaces are not
|
|
* disjunctive on s390 so we need the bar parameter of pci_iomap to find
|
|
* the corresponding device and create the mapping cookie.
|
|
*/
|
|
#define pci_iomap pci_iomap
|
|
#define pci_iounmap pci_iounmap
|
|
#define pci_iomap_wc pci_iomap
|
|
#define pci_iomap_wc_range pci_iomap_range
|
|
|
|
#define memcpy_fromio(dst, src, count) zpci_memcpy_fromio(dst, src, count)
|
|
#define memcpy_toio(dst, src, count) zpci_memcpy_toio(dst, src, count)
|
|
#define memset_io(dst, val, count) zpci_memset_io(dst, val, count)
|
|
|
|
#define __raw_readb zpci_read_u8
|
|
#define __raw_readw zpci_read_u16
|
|
#define __raw_readl zpci_read_u32
|
|
#define __raw_readq zpci_read_u64
|
|
#define __raw_writeb zpci_write_u8
|
|
#define __raw_writew zpci_write_u16
|
|
#define __raw_writel zpci_write_u32
|
|
#define __raw_writeq zpci_write_u64
|
|
|
|
#endif /* CONFIG_PCI */
|
|
|
|
#include <asm-generic/io.h>
|
|
|
|
#endif
|