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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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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>
114 lines
3.4 KiB
C
114 lines
3.4 KiB
C
/*
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* iop13xx custom ioremap implementation
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* Copyright (c) 2005-2006, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place - Suite 330, Boston, MA 02111-1307 USA.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/io.h>
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#include <mach/hardware.h>
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void * __iomem __iop13xx_io(unsigned long io_addr)
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{
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void __iomem * io_virt;
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switch (io_addr) {
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case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA:
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io_virt = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(io_addr);
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break;
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case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA:
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io_virt = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(io_addr);
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break;
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default:
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BUG();
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}
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return io_virt;
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}
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EXPORT_SYMBOL(__iop13xx_io);
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void * __iomem __iop13xx_ioremap(unsigned long cookie, size_t size,
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unsigned int mtype)
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{
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void __iomem * retval;
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switch (cookie) {
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case IOP13XX_PCIX_LOWER_MEM_RA ... IOP13XX_PCIX_UPPER_MEM_RA:
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if (unlikely(!iop13xx_atux_mem_base))
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retval = NULL;
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else
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retval = (void *)(iop13xx_atux_mem_base +
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(cookie - IOP13XX_PCIX_LOWER_MEM_RA));
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break;
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case IOP13XX_PCIE_LOWER_MEM_RA ... IOP13XX_PCIE_UPPER_MEM_RA:
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if (unlikely(!iop13xx_atue_mem_base))
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retval = NULL;
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else
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retval = (void *)(iop13xx_atue_mem_base +
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(cookie - IOP13XX_PCIE_LOWER_MEM_RA));
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break;
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case IOP13XX_PBI_LOWER_MEM_RA ... IOP13XX_PBI_UPPER_MEM_RA:
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retval = __arm_ioremap_caller(IOP13XX_PBI_LOWER_MEM_PA +
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(cookie - IOP13XX_PBI_LOWER_MEM_RA),
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size, mtype, __builtin_return_address(0));
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break;
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case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA:
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retval = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(cookie);
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break;
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case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA:
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retval = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(cookie);
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break;
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case IOP13XX_PMMR_PHYS_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_PA:
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retval = (void *) IOP13XX_PMMR_PHYS_TO_VIRT(cookie);
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break;
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default:
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retval = __arm_ioremap_caller(cookie, size, mtype,
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__builtin_return_address(0));
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}
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return retval;
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}
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EXPORT_SYMBOL(__iop13xx_ioremap);
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void __iop13xx_iounmap(void __iomem *addr)
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{
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extern void __iounmap(volatile void __iomem *addr);
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if (iop13xx_atue_mem_base)
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if (addr >= (void __iomem *) iop13xx_atue_mem_base &&
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addr < (void __iomem *) (iop13xx_atue_mem_base +
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iop13xx_atue_mem_size))
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goto skip;
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if (iop13xx_atux_mem_base)
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if (addr >= (void __iomem *) iop13xx_atux_mem_base &&
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addr < (void __iomem *) (iop13xx_atux_mem_base +
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iop13xx_atux_mem_size))
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goto skip;
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switch ((u32) addr) {
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case IOP13XX_PCIE_LOWER_IO_VA ... IOP13XX_PCIE_UPPER_IO_VA:
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case IOP13XX_PCIX_LOWER_IO_VA ... IOP13XX_PCIX_UPPER_IO_VA:
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case IOP13XX_PMMR_VIRT_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_VA:
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goto skip;
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}
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__iounmap(addr);
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skip:
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return;
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}
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EXPORT_SYMBOL(__iop13xx_iounmap);
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