From 9f0346dcbea363787186c94ef94dd01aaa215afa Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 5 Sep 2026 11:59:05 -0700 Subject: Merge tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core Pull driver core fixes from Danilo Krummrich: - Fix kernfs listxattr() not returning security xattr names (e.g. SELinux labels) when the kernfs node has no allocated kernfs_iattrs - Fix silent truncation of IRQ vector indices in the Rust PCI abstractions - Don't select OF from DRIVER_PE_KUNIT_TEST; skip the test when OF is disabled instead of silently enabling extra kernel functionality - Russ Weight is retiring from kernel development; update the Firmware Loader sysfs contact to the driver-core mailing list, add a CREDITS entry for Firmware Upload, and update MAINTAINERS accordingly * tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: MAINTAINERS: Remove Russ Weight from Firmware Loader CREDITS: Add CREDITS entry for Firmware Upload firmware_loader: Change contact for sysfs nodes rust: pci: reject IRQ vector indices that do not fit in u32 kernfs: preserve security xattrs without allocating iattrs drivers: base: test: DRIVER_PE_KUNIT_TEST should not select OF --- arch/parisc/mm/fixmap.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 arch/parisc/mm/fixmap.c (limited to 'arch/parisc/mm/fixmap.c') diff --git a/arch/parisc/mm/fixmap.c b/arch/parisc/mm/fixmap.c new file mode 100644 index 000000000..ae3493dae --- /dev/null +++ b/arch/parisc/mm/fixmap.c @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * fixmaps for parisc + * + * Copyright (c) 2019 Sven Schnelle + */ + +#include +#include +#include +#include + +void notrace set_fixmap(enum fixed_addresses idx, phys_addr_t phys) +{ + unsigned long vaddr = __fix_to_virt(idx); + pgd_t *pgd = pgd_offset_k(vaddr); + p4d_t *p4d = p4d_offset(pgd, vaddr); + pud_t *pud = pud_offset(p4d, vaddr); + pmd_t *pmd = pmd_offset(pud, vaddr); + pte_t *pte; + + pte = pte_offset_kernel(pmd, vaddr); + set_pte_at(&init_mm, vaddr, pte, __mk_pte(phys, PAGE_KERNEL_RWX)); + flush_tlb_kernel_range(vaddr, vaddr + PAGE_SIZE); +} + +void notrace clear_fixmap(enum fixed_addresses idx) +{ + unsigned long vaddr = __fix_to_virt(idx); + pte_t *pte = virt_to_kpte(vaddr); + + if (WARN_ON(pte_none(*pte))) + return; + + pte_clear(&init_mm, vaddr, pte); + + flush_tlb_kernel_range(vaddr, vaddr + PAGE_SIZE); +} -- cgit v1.3.1