31aa8fd6fd
This allows the procfs vmallocinfo file to show who created the ioremap regions. Note: __builtin_return_address(0) doesn't do what's expected if its used in an inline function, so we leave __arm_ioremap callers in such places alone. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
/*
|
|
* iop13xx custom ioremap implementation
|
|
* Copyright (c) 2005-2006, Intel Corporation.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
|
|
* Place - Suite 330, Boston, MA 02111-1307 USA.
|
|
*
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/io.h>
|
|
#include <mach/hardware.h>
|
|
|
|
void * __iomem __iop13xx_io(unsigned long io_addr)
|
|
{
|
|
void __iomem * io_virt;
|
|
|
|
switch (io_addr) {
|
|
case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA:
|
|
io_virt = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(io_addr);
|
|
break;
|
|
case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA:
|
|
io_virt = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(io_addr);
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
|
|
return io_virt;
|
|
}
|
|
EXPORT_SYMBOL(__iop13xx_io);
|
|
|
|
void * __iomem __iop13xx_ioremap(unsigned long cookie, size_t size,
|
|
unsigned int mtype)
|
|
{
|
|
void __iomem * retval;
|
|
|
|
switch (cookie) {
|
|
case IOP13XX_PCIX_LOWER_MEM_RA ... IOP13XX_PCIX_UPPER_MEM_RA:
|
|
if (unlikely(!iop13xx_atux_mem_base))
|
|
retval = NULL;
|
|
else
|
|
retval = (void *)(iop13xx_atux_mem_base +
|
|
(cookie - IOP13XX_PCIX_LOWER_MEM_RA));
|
|
break;
|
|
case IOP13XX_PCIE_LOWER_MEM_RA ... IOP13XX_PCIE_UPPER_MEM_RA:
|
|
if (unlikely(!iop13xx_atue_mem_base))
|
|
retval = NULL;
|
|
else
|
|
retval = (void *)(iop13xx_atue_mem_base +
|
|
(cookie - IOP13XX_PCIE_LOWER_MEM_RA));
|
|
break;
|
|
case IOP13XX_PBI_LOWER_MEM_RA ... IOP13XX_PBI_UPPER_MEM_RA:
|
|
retval = __arm_ioremap_caller(IOP13XX_PBI_LOWER_MEM_PA +
|
|
(cookie - IOP13XX_PBI_LOWER_MEM_RA),
|
|
size, mtype, __builtin_return_address(0));
|
|
break;
|
|
case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA:
|
|
retval = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(cookie);
|
|
break;
|
|
case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA:
|
|
retval = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(cookie);
|
|
break;
|
|
case IOP13XX_PMMR_PHYS_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_PA:
|
|
retval = (void *) IOP13XX_PMMR_PHYS_TO_VIRT(cookie);
|
|
break;
|
|
default:
|
|
retval = __arm_ioremap_caller(cookie, size, mtype,
|
|
__builtin_return_address(0));
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
EXPORT_SYMBOL(__iop13xx_ioremap);
|
|
|
|
void __iop13xx_iounmap(void __iomem *addr)
|
|
{
|
|
extern void __iounmap(volatile void __iomem *addr);
|
|
|
|
if (iop13xx_atue_mem_base)
|
|
if (addr >= (void __iomem *) iop13xx_atue_mem_base &&
|
|
addr < (void __iomem *) (iop13xx_atue_mem_base +
|
|
iop13xx_atue_mem_size))
|
|
goto skip;
|
|
|
|
if (iop13xx_atux_mem_base)
|
|
if (addr >= (void __iomem *) iop13xx_atux_mem_base &&
|
|
addr < (void __iomem *) (iop13xx_atux_mem_base +
|
|
iop13xx_atux_mem_size))
|
|
goto skip;
|
|
|
|
switch ((u32) addr) {
|
|
case IOP13XX_PCIE_LOWER_IO_VA ... IOP13XX_PCIE_UPPER_IO_VA:
|
|
case IOP13XX_PCIX_LOWER_IO_VA ... IOP13XX_PCIX_UPPER_IO_VA:
|
|
case IOP13XX_PMMR_VIRT_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_VA:
|
|
goto skip;
|
|
}
|
|
__iounmap(addr);
|
|
|
|
skip:
|
|
return;
|
|
}
|
|
EXPORT_SYMBOL(__iop13xx_iounmap);
|