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| author | Mike Rapoport (IBM) <rppt@kernel.org> | 2024-05-05 18:06:19 +0200 |
|---|---|---|
| committer | Luis Chamberlain <mcgrof@kernel.org> | 2024-05-14 09:31:43 +0200 |
| commit | f6bec26c0a7364d3506a3e12dab7c228ef32bd65 (patch) | |
| tree | 4686bc944b0452c523664ad70241e3f0a115d12b /arch/sparc | |
| parent | mm: introduce execmem_alloc() and execmem_free() (diff) | |
| download | linux-f6bec26c0a7364d3506a3e12dab7c228ef32bd65.tar.xz linux-f6bec26c0a7364d3506a3e12dab7c228ef32bd65.zip | |
mm/execmem, arch: convert simple overrides of module_alloc to execmem
Several architectures override module_alloc() only to define address
range for code allocations different than VMALLOC address space.
Provide a generic implementation in execmem that uses the parameters for
address space ranges, required alignment and page protections provided
by architectures.
The architectures must fill execmem_info structure and implement
execmem_arch_setup() that returns a pointer to that structure. This way the
execmem initialization won't be called from every architecture, but rather
from a central place, namely a core_initcall() in execmem.
The execmem provides execmem_alloc() API that wraps __vmalloc_node_range()
with the parameters defined by the architectures. If an architecture does
not implement execmem_arch_setup(), execmem_alloc() will fall back to
module_alloc().
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Acked-by: Song Liu <song@kernel.org>
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/kernel/module.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c index d37adb2a0b54..8b7ee45defc3 100644 --- a/arch/sparc/kernel/module.c +++ b/arch/sparc/kernel/module.c @@ -14,6 +14,7 @@ #include <linux/string.h> #include <linux/ctype.h> #include <linux/mm.h> +#include <linux/execmem.h> #include <asm/processor.h> #include <asm/spitfire.h> @@ -21,11 +22,22 @@ #include "entry.h" -void *module_alloc(unsigned long size) +static struct execmem_info execmem_info __ro_after_init; + +struct execmem_info __init *execmem_arch_setup(void) { - return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END, - GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE, - __builtin_return_address(0)); + execmem_info = (struct execmem_info){ + .ranges = { + [EXECMEM_DEFAULT] = { + .start = MODULES_VADDR, + .end = MODULES_END, + .pgprot = PAGE_KERNEL, + .alignment = 1, + }, + }, + }; + + return &execmem_info; } /* Make generic code ignore STT_REGISTER dummy undefined symbols. */ |