diff options
| author | Sang-Heon Jeon <ekffu200098@gmail.com> | 2026-08-24 01:18:14 +0900 |
|---|---|---|
| committer | Julia Lawall <Julia.Lawall@inria.fr> | 2026-08-23 22:12:11 +0200 |
| commit | 2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c (patch) | |
| tree | dcc4da1d99f17541c5590ac63c77da4bf372a4ab /arch/arm/mm/fault.h | |
| download | linux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.tar.gz linux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.zip | |
coccinelle: alloc_cast: drop removed allocatorsgrafted
- pci_alloc_consistent() and pci_zalloc_consistent() were removed by
commit 7968778914e5
("PCI: Remove the deprecated "pci-dma-compat.h" API")
- kmem_alloc() was removed by commit f078d4ea8276
("xfs: convert kmem_alloc() to kmalloc()")
- kmem_zalloc() was removed by commit 10634530f7ba
("xfs: convert kmem_zalloc() to kzalloc()")
- kmem_zone_alloc() and kmem_zone_zalloc() were removed by commit
bae633a4a283 ("xfs: remove xfs_zone_{alloc,zalloc} helpers")
So drop them from the rules.
No functional change.
Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Diffstat (limited to 'arch/arm/mm/fault.h')
| -rw-r--r-- | arch/arm/mm/fault.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/arch/arm/mm/fault.h b/arch/arm/mm/fault.h new file mode 100644 index 000000000..207f1b069 --- /dev/null +++ b/arch/arm/mm/fault.h @@ -0,0 +1,75 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ARCH_ARM_FAULT_H +#define __ARCH_ARM_FAULT_H + +/* + * Fault status register encodings. We steal bit 31 for our own purposes. + */ +#define FSR_LNX_PF BIT(31) +#define FSR_CM BIT(13) +#define FSR_WRITE BIT(11) + +#ifdef CONFIG_ARM_LPAE +#define FSR_FS_AEA 17 +#define FS_TRANS_NOLL 0x4 +#define FS_PERM_NOLL 0xC +#define FS_MMU_NOLL_MASK 0x3C + +#define FSR_FS5_0 GENMASK(5, 0) + +static inline int fsr_fs(unsigned int fsr) +{ + return fsr & FSR_FS5_0; +} + +static inline bool is_translation_fault(unsigned int fsr) +{ + int fs = fsr_fs(fsr); + + return (fs & FS_MMU_NOLL_MASK) == FS_TRANS_NOLL; +} + +static inline bool is_permission_fault(unsigned int fsr) +{ + int fs = fsr_fs(fsr); + + return (fs & FS_MMU_NOLL_MASK) == FS_PERM_NOLL; +} +#else +#define FSR_FS_AEA 22 +#define FS_L1_TRANS 0x5 +#define FS_L2_TRANS 0x7 +#define FS_L1_PERM 0xD +#define FS_L2_PERM 0xF + +#define FSR_FS4 BIT(10) +#define FSR_FS3_0 GENMASK(3, 0) + +static inline int fsr_fs(unsigned int fsr) +{ + return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6; +} + +static inline bool is_translation_fault(unsigned int fsr) +{ + int fs = fsr_fs(fsr); + + return fs == FS_L1_TRANS || fs == FS_L2_TRANS; +} + +static inline bool is_permission_fault(unsigned int fsr) +{ + int fs = fsr_fs(fsr); + + return fs == FS_L1_PERM || fs == FS_L2_PERM; +} +#endif + +void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs); +void early_abt_enable(void); +asmlinkage void do_DataAbort(unsigned long addr, unsigned int fsr, + struct pt_regs *regs); +asmlinkage void do_PrefetchAbort(unsigned long addr, unsigned int ifsr, + struct pt_regs *regs); + +#endif /* __ARCH_ARM_FAULT_H */ |
