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| author | Kees Cook <kees+treewide@kernel.org> | 2026-09-02 15:31:14 -0700 |
|---|---|---|
| committer | Kees Cook <kees@kernel.org> | 2026-09-04 21:37:00 -0700 |
| commit | 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch) | |
| tree | c65086f9bdcd48c6360fb7cb4598bca084da1f32 /arch/powerpc/boot/ops.h | |
| download | linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip | |
treewide: refresh kmalloc_obj() conversionsgrafted
This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci
This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.
Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.
Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>
Diffstat (limited to 'arch/powerpc/boot/ops.h')
| -rw-r--r-- | arch/powerpc/boot/ops.h | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/arch/powerpc/boot/ops.h b/arch/powerpc/boot/ops.h new file mode 100644 index 000000000..a40c2162a --- /dev/null +++ b/arch/powerpc/boot/ops.h @@ -0,0 +1,259 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Global definition of all the bootwrapper operations. + * + * Author: Mark A. Greer <mgreer@mvista.com> + * + * 2006 (c) MontaVista Software, Inc. + */ +#ifndef _PPC_BOOT_OPS_H_ +#define _PPC_BOOT_OPS_H_ + +#include <stddef.h> +#include "types.h" +#include "string.h" + +#define BOOT_COMMAND_LINE_SIZE 2048 +#define MAX_PATH_LEN 256 +#define MAX_PROP_LEN 256 /* What should this be? */ + +typedef void (*kernel_entry_t)(unsigned long r3, unsigned long r4, void *r5); + +/* Platform specific operations */ +struct platform_ops { + void (*fixups)(void); + void (*image_hdr)(const void *); + void * (*malloc)(unsigned long size); + void (*free)(void *ptr); + void * (*realloc)(void *ptr, unsigned long size); + void (*exit)(void); + void * (*vmlinux_alloc)(unsigned long size); + void (*kentry)(unsigned long fdt_addr, void *vmlinux_addr); +}; +extern struct platform_ops platform_ops; + +/* Device Tree operations */ +struct dt_ops { + void * (*finddevice)(const char *name); + int (*getprop)(const void *phandle, const char *name, void *buf, + const int buflen); + int (*setprop)(const void *phandle, const char *name, + const void *buf, const int buflen); + int (*del_node)(const void *phandle); + void *(*get_parent)(const void *phandle); + /* The node must not already exist. */ + void *(*create_node)(const void *parent, const char *name); + void *(*find_node_by_prop_value)(const void *prev, + const char *propname, + const char *propval, int proplen); + void *(*find_node_by_compatible)(const void *prev, + const char *compat); + unsigned long (*finalize)(void); + char *(*get_path)(const void *phandle, char *buf, int len); +}; +extern struct dt_ops dt_ops; + +/* Console operations */ +struct console_ops { + int (*open)(void); + void (*write)(const char *buf, int len); + void (*edit_cmdline)(char *buf, int len, unsigned int getline_timeout); + void (*close)(void); + void *data; +}; +extern struct console_ops console_ops; + +/* Serial console operations */ +struct serial_console_data { + int (*open)(void); + void (*putc)(unsigned char c); + unsigned char (*getc)(void); + u8 (*tstc)(void); + void (*close)(void); +}; + +struct loader_info { + void *promptr; + unsigned long initrd_addr, initrd_size; + char *cmdline; + int cmdline_len; +}; +extern struct loader_info loader_info; + +void start(void); +void fdt_init(void *blob); +int serial_console_init(void); +int ns16550_console_init(void *devp, struct serial_console_data *scdp); +int cpm_console_init(void *devp, struct serial_console_data *scdp); +int mpc5200_psc_console_init(void *devp, struct serial_console_data *scdp); +int opal_console_init(void *devp, struct serial_console_data *scdp); +void *simple_alloc_init(char *base, unsigned long heap_size, + unsigned long granularity, unsigned long max_allocs); +extern void flush_cache(void *, unsigned long); +int dt_xlate_reg(void *node, int res, unsigned long *addr, unsigned long *size); +int dt_xlate_addr(void *node, u32 *buf, int buflen, unsigned long *xlated_addr); +int dt_is_compatible(void *node, const char *compat); +void dt_get_reg_format(void *node, u32 *naddr, u32 *nsize); +int dt_get_virtual_reg(void *node, void **addr, int nres); + +static inline void *finddevice(const char *name) +{ + return (dt_ops.finddevice) ? dt_ops.finddevice(name) : NULL; +} + +static inline int getprop(void *devp, const char *name, void *buf, int buflen) +{ + return (dt_ops.getprop) ? dt_ops.getprop(devp, name, buf, buflen) : -1; +} + +static inline int setprop(void *devp, const char *name, + const void *buf, int buflen) +{ + return (dt_ops.setprop) ? dt_ops.setprop(devp, name, buf, buflen) : -1; +} +#define setprop_val(devp, name, val) \ + do { \ + typeof(val) x = (val); \ + setprop((devp), (name), &x, sizeof(x)); \ + } while (0) + +static inline int setprop_str(void *devp, const char *name, const char *buf) +{ + if (dt_ops.setprop) + return dt_ops.setprop(devp, name, buf, strlen(buf) + 1); + + return -1; +} + +static inline int del_node(const void *devp) +{ + return dt_ops.del_node ? dt_ops.del_node(devp) : -1; +} + +static inline void *get_parent(const char *devp) +{ + return dt_ops.get_parent ? dt_ops.get_parent(devp) : NULL; +} + +static inline void *create_node(const void *parent, const char *name) +{ + return dt_ops.create_node ? dt_ops.create_node(parent, name) : NULL; +} + + +static inline void *find_node_by_prop_value(const void *prev, + const char *propname, + const char *propval, int proplen) +{ + if (dt_ops.find_node_by_prop_value) + return dt_ops.find_node_by_prop_value(prev, propname, + propval, proplen); + + return NULL; +} + +static inline void *find_node_by_prop_value_str(const void *prev, + const char *propname, + const char *propval) +{ + return find_node_by_prop_value(prev, propname, propval, + strlen(propval) + 1); +} + +static inline void *find_node_by_devtype(const void *prev, + const char *type) +{ + return find_node_by_prop_value_str(prev, "device_type", type); +} + +static inline void *find_node_by_alias(const char *alias) +{ + void *devp = finddevice("/aliases"); + + if (devp) { + char path[MAX_PATH_LEN]; + if (getprop(devp, alias, path, MAX_PATH_LEN) > 0) + return finddevice(path); + } + + return NULL; +} + +static inline void *find_node_by_compatible(const void *prev, + const char *compat) +{ + if (dt_ops.find_node_by_compatible) + return dt_ops.find_node_by_compatible(prev, compat); + + return NULL; +} + +void dt_fixup_memory(u64 start, u64 size); +void dt_fixup_cpu_clocks(u32 cpufreq, u32 tbfreq, u32 busfreq); +void dt_fixup_clock(const char *path, u32 freq); +void dt_fixup_mac_address_by_alias(const char *alias, const u8 *addr); +void dt_fixup_mac_address(u32 index, const u8 *addr); +void __dt_fixup_mac_addresses(u32 startindex, ...); +#define dt_fixup_mac_addresses(...) \ + __dt_fixup_mac_addresses(0, __VA_ARGS__, NULL) + + +static inline char *get_path(const void *phandle, char *buf, int len) +{ + if (dt_ops.get_path) + return dt_ops.get_path(phandle, buf, len); + + return NULL; +} + +static inline void *malloc(unsigned long size) +{ + return (platform_ops.malloc) ? platform_ops.malloc(size) : NULL; +} + +static inline void free(void *ptr) +{ + if (platform_ops.free) + platform_ops.free(ptr); +} + +static inline void exit(void) +{ + if (platform_ops.exit) + platform_ops.exit(); + for(;;); +} +#define fatal(args...) { printf(args); exit(); } + + +#define BSS_STACK(size) \ + static char _bss_stack[size]; \ + void *_platform_stack_top = _bss_stack + sizeof(_bss_stack); + +extern unsigned long timebase_period_ns; +void udelay(long delay); + +extern char _start[]; +extern char __bss_start[]; +extern char _end[]; +extern char _vmlinux_start[]; +extern char _vmlinux_end[]; +extern char _initrd_start[]; +extern char _initrd_end[]; +extern char _dtb_start[]; +extern char _dtb_end[]; +extern char _esm_blob_start[]; +extern char _esm_blob_end[]; + +static inline __attribute__((const)) +int __ilog2_u32(u32 n) +{ + int bit; + asm ("cntlzw %0,%1" : "=r" (bit) : "r" (n)); + return 31 - bit; +} + +long partial_decompress(void *inbuf, unsigned long input_size, void *outbuf, + unsigned long output_size, unsigned long skip); + +#endif /* _PPC_BOOT_OPS_H_ */ |
