diff options
author | Mike Rapoport (IBM) <rppt@kernel.org> | 2024-05-05 19:06:19 +0300 |
---|---|---|
committer | Luis Chamberlain <mcgrof@kernel.org> | 2024-05-14 00:31:43 -0700 |
commit | f6bec26c0a7364d3506a3e12dab7c228ef32bd65 (patch) | |
tree | 4686bc944b0452c523664ad70241e3f0a115d12b /arch/mips | |
parent | 12af2b83d0b17ec8b379b721dd4a8fbcd5d791f3 (diff) |
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/mips')
-rw-r--r-- | arch/mips/kernel/module.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c index 9a6c96014904..59225a3cf918 100644 --- a/arch/mips/kernel/module.c +++ b/arch/mips/kernel/module.c @@ -20,6 +20,7 @@ #include <linux/kernel.h> #include <linux/spinlock.h> #include <linux/jump_label.h> +#include <linux/execmem.h> #include <asm/jump_label.h> struct mips_hi16 { @@ -32,11 +33,22 @@ static LIST_HEAD(dbe_list); static DEFINE_SPINLOCK(dbe_lock); #ifdef MODULES_VADDR -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; } #endif |