Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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#include <linux/io.h>
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#include <linux/slab.h>
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#include <linux/mmzone.h>
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#include <linux/vmalloc.h>
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unsigned long ioremap_bot;
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EXPORT_SYMBOL(ioremap_bot);
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void __iomem *ioremap(phys_addr_t addr, unsigned long size)
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{
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pgprot_t prot = pgprot_noncached(PAGE_KERNEL);
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void *caller = __builtin_return_address(0);
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return __ioremap_caller(addr, size, prot, caller);
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}
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EXPORT_SYMBOL(ioremap);
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void __iomem *ioremap_wc(phys_addr_t addr, unsigned long size)
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{
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pgprot_t prot = pgprot_noncached_wc(PAGE_KERNEL);
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void *caller = __builtin_return_address(0);
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return __ioremap_caller(addr, size, prot, caller);
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}
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EXPORT_SYMBOL(ioremap_wc);
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void __iomem *ioremap_coherent(phys_addr_t addr, unsigned long size)
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{
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pgprot_t prot = pgprot_cached(PAGE_KERNEL);
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void *caller = __builtin_return_address(0);
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return __ioremap_caller(addr, size, prot, caller);
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}
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void __iomem *ioremap_prot(phys_addr_t addr, size_t size, pgprot_t prot)
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{
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pte_t pte = __pte(pgprot_val(prot));
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void *caller = __builtin_return_address(0);
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/* writeable implies dirty for kernel addresses */
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if (pte_write(pte))
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pte = pte_mkdirty(pte);
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return __ioremap_caller(addr, size, pte_pgprot(pte), caller);
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}
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EXPORT_SYMBOL(ioremap_prot);
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int early_ioremap_range(unsigned long ea, phys_addr_t pa,
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unsigned long size, pgprot_t prot)
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{
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unsigned long i;
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for (i = 0; i < size; i += PAGE_SIZE) {
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int err = map_kernel_page(ea + i, pa + i, pgprot_nx(prot));
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if (WARN_ON_ONCE(err)) /* Should clean up */
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return err;
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}
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return 0;
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}
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