mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-05 16:37:50 +00:00
Code Issues Releases Wiki Activity

arm64: setup: drop early FDT pointer helpers

Browse source 
We no longer need to call into the kernel to map the FDT before calling
into the kernel so let's drop the helpers we added for this.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20220624150651.1358849-22-ardb@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Ard Biesheuvel 2022-06-24 17:06:51 +02:00 committed by Will Deacon
parent aacd149b62
commit 7559d9f975
3 changed files with 0 additions and 20 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
arch/arm64/include/asm/setup.h
View file

@ -5,9 +5,6 @@
#include <uapi/asm/setup.h>
void *get_early_fdt_ptr(void);
void early_fdt_map(u64 dt_phys);
/*
* These two variables are used in the head.S file.
*/

2
arch/arm64/kernel/head.S
View file

@ -446,8 +446,6 @@ SYM_FUNC_START_LOCAL(__primary_switched)
#if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
bl kasan_early_init
#endif
mov x0, x21 // pass FDT address in x0
bl early_fdt_map // Try mapping the FDT early
mov x0, x22 // pass FDT address in x0
bl init_feature_override // Parse cpu feature overrides
mov x0, x20

15
arch/arm64/kernel/setup.c
View file

@ -163,21 +163,6 @@ static void __init smp_build_mpidr_hash(void)
pr_warn("Large number of MPIDR hash buckets detected\n");
}
static void *early_fdt_ptr __initdata;
void __init *get_early_fdt_ptr(void)
{
return early_fdt_ptr;
}
asmlinkage void __init early_fdt_map(u64 dt_phys)
{
int fdt_size;
early_fixmap_init();
early_fdt_ptr = fixmap_remap_fdt(dt_phys, &fdt_size, PAGE_KERNEL);
}
static void __init setup_machine_fdt(phys_addr_t dt_phys)
{
int size;