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platform_kernel-5.15
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ARM: change vmalloc_min to vmalloc_start 

Change the current vmalloc_min, which is supposed to be the lowest
address of vmalloc space including the VMALLOC_OFFSET, to vmalloc_start
which does not include VMALLOC_OFFSET.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Yanfei Xu <yanfei.xu@windriver.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Russell King (Oracle) 2021-05-18 12:53:30 +01:00
parent 4f706b078f
commit f572f5cb39
1 changed files with 5 additions and 5 deletions
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10
arch/arm/mm/mmu.c
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@ -1121,8 +1121,7 @@ void __init debug_ll_io_init(void)
}
#endif
static unsigned long __initdata vmalloc_min =
VMALLOC_END - (240 << 20) - VMALLOC_OFFSET;
static unsigned long __initdata vmalloc_start = VMALLOC_END - (240 << 20);
/*
* vmalloc=size forces the vmalloc area to be exactly 'size'
@ -1140,14 +1139,14 @@ static int __init early_vmalloc(char *arg)
vmalloc_reserve >> 20);
}
vmalloc_max = VMALLOC_END - (PAGE_OFFSET + SZ_32M);
vmalloc_max = VMALLOC_END - (PAGE_OFFSET + SZ_32M + VMALLOC_OFFSET);
if (vmalloc_reserve > vmalloc_max) {
vmalloc_reserve = vmalloc_max;
pr_warn("vmalloc area is too big, limiting to %luMB\n",
vmalloc_reserve >> 20);
}
vmalloc_min = VMALLOC_END - vmalloc_reserve;
vmalloc_start = VMALLOC_END - vmalloc_reserve;
return 0;
}
early_param("vmalloc", early_vmalloc);
@ -1167,7 +1166,8 @@ void __init adjust_lowmem_bounds(void)
* and may itself be outside the valid range for which phys_addr_t
* and therefore __pa() is defined.
*/
vmalloc_limit = (u64)vmalloc_min - PAGE_OFFSET + PHYS_OFFSET;
vmalloc_limit = (u64)vmalloc_start - VMALLOC_OFFSET -
PAGE_OFFSET + PHYS_OFFSET;
/*
* The first usable region must be PMD aligned. Mark its start