diff options
| author | Baoquan He <bhe@redhat.com> | 2023-09-14 11:31:41 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-10-04 10:41:58 -0700 |
| commit | 39365395046fe74bebf6f70e86439f48ba56a75e (patch) | |
| tree | bd3e275cc03771054948ec68edcf408436a83ed5 /arch/riscv/kernel | |
| parent | fdc268232dbbae8d3acdc5536370b53327be3bb0 (diff) | |
riscv: kdump: use generic interface to simplify crashkernel reservation
With the help of newly changed function parse_crashkernel() and generic
reserve_crashkernel_generic(), crashkernel reservation can be simplified
by steps:
1) Add a new header file <asm/crash_core.h>, and define CRASH_ALIGN,
CRASH_ADDR_LOW_MAX, CRASH_ADDR_HIGH_MAX and
DEFAULT_CRASH_KERNEL_LOW_SIZE in <asm/crash_core.h>;
2) Add arch_reserve_crashkernel() to call parse_crashkernel() and
reserve_crashkernel_generic();
3) Add ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION Kconfig in
arch/riscv/Kconfig.
The old reserve_crashkernel_low() and reserve_crashkernel() can be
removed.
[chenjiahao16@huawei.com: fix crashkernel reserving problem on RISC-V]
Link: https://lkml.kernel.org/r/20230925024333.730964-1-chenjiahao16@huawei.com
Link: https://lkml.kernel.org/r/20230914033142.676708-9-bhe@redhat.com
Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Chen Jiahao <chenjiahao16@huawei.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chen Jiahao <chenjiahao16@huawei.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/riscv/kernel')
| -rw-r--r-- | arch/riscv/kernel/setup.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c index e600aab116a4..aac853ae4eb7 100644 --- a/arch/riscv/kernel/setup.c +++ b/arch/riscv/kernel/setup.c @@ -173,19 +173,6 @@ static void __init init_resources(void) if (ret < 0) goto error; -#ifdef CONFIG_KEXEC_CORE - if (crashk_res.start != crashk_res.end) { - ret = add_resource(&iomem_resource, &crashk_res); - if (ret < 0) - goto error; - } - if (crashk_low_res.start != crashk_low_res.end) { - ret = add_resource(&iomem_resource, &crashk_low_res); - if (ret < 0) - goto error; - } -#endif - #ifdef CONFIG_CRASH_DUMP if (elfcorehdr_size > 0) { elfcorehdr_res.start = elfcorehdr_addr; |