From mboxrd@z Thu Jan 1 00:00:00 1970 From: Florian Fainelli Subject: [PATCH v2 6/6] arch: Move initrd= parsing into do_mounts_initrd.c Date: Tue, 30 Oct 2018 16:07:21 -0700 Message-ID: <20181030230721.28429-7-f.fainelli@gmail.com> References: <20181030230721.28429-1-f.fainelli@gmail.com> Return-path: In-Reply-To: <20181030230721.28429-1-f.fainelli@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org Cc: Florian Fainelli , Catalin Marinas , Will Deacon , Rob Herring , Frank Rowand , Andrew Morton , Marc Zyngier , Russell King , Andrey Ryabinin , Andrey Konovalov , Masahiro Yamada , Robin Murphy , Laura Abbott , Stefan Agner , Johannes Weiner , Greg Hackmann , Kristina Martsenko , CHANDAN VN , linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org ARC, ARM, ARM64 and Unicore32 are all capable of parsing the "initrd=" command line parameter to allow specifying the physical address and size of an initrd. Move that parsing into init/do_mounts_initrd.c such that we no longer duplicate that logic. Signed-off-by: Florian Fainelli --- arch/arc/mm/init.c | 25 +++++-------------------- arch/arm/mm/init.c | 17 ----------------- arch/arm64/mm/init.c | 18 ------------------ arch/unicore32/mm/init.c | 18 ------------------ init/do_mounts_initrd.c | 17 +++++++++++++++++ 5 files changed, 22 insertions(+), 73 deletions(-) diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c index ba145065c579..369d3d699929 100644 --- a/arch/arc/mm/init.c +++ b/arch/arc/mm/init.c @@ -79,24 +79,6 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size) base, TO_MB(size), !in_use ? "Not used":""); } -#ifdef CONFIG_BLK_DEV_INITRD -static int __init early_initrd(char *p) -{ - unsigned long start, size; - char *endp; - - start = memparse(p, &endp); - if (*endp == ',') { - size = memparse(endp + 1, NULL); - - initrd_start = (unsigned long)__va(start); - initrd_end = (unsigned long)__va(start + size); - } - return 0; -} -early_param("initrd", early_initrd); -#endif - /* * First memory setup routine called from setup_arch() * 1. setup swapper's mm @init_mm @@ -141,8 +123,11 @@ void __init setup_arch_memory(void) memblock_reserve(low_mem_start, __pa(_end) - low_mem_start); #ifdef CONFIG_BLK_DEV_INITRD - if (initrd_start) - memblock_reserve(__pa(initrd_start), initrd_end - initrd_start); + if (phys_initrd_size) { + memblock_reserve(phys_initrd_start, phys_initrd_size); + initrd_start = __va(phys_initrd_start); + initrd_end = initrd_start + phys_initrd_size; + } #endif early_init_fdt_reserve_self(); diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 4bfa08e27319..58ec68709606 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -52,23 +52,6 @@ unsigned long __init __clear_cr(unsigned long mask) #endif #ifdef CONFIG_BLK_DEV_INITRD -static int __init early_initrd(char *p) -{ - phys_addr_t start; - unsigned long size; - char *endp; - - start = memparse(p, &endp); - if (*endp == ',') { - size = memparse(endp + 1, NULL); - - phys_initrd_start = start; - phys_initrd_size = size; - } - return 0; -} -early_param("initrd", early_initrd); - static int __init parse_tag_initrd(const struct tag *tag) { pr_warn("ATAG_INITRD is deprecated; " diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index e95cee656a55..9045afacd10b 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -62,24 +62,6 @@ s64 memstart_addr __ro_after_init = -1; phys_addr_t arm64_dma_phys_limit __ro_after_init; -#ifdef CONFIG_BLK_DEV_INITRD -static int __init early_initrd(char *p) -{ - unsigned long start, size; - char *endp; - - start = memparse(p, &endp); - if (*endp == ',') { - size = memparse(endp + 1, NULL); - - phys_initrd_start = start; - phys_initrd_size = size; - } - return 0; -} -early_param("initrd", early_initrd); -#endif - #ifdef CONFIG_KEXEC_CORE /* * reserve_crashkernel() - reserves memory for crash kernel diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c index f2f815d46846..99acdb829a7e 100644 --- a/arch/unicore32/mm/init.c +++ b/arch/unicore32/mm/init.c @@ -31,24 +31,6 @@ #include "mm.h" -#ifdef CONFIG_BLK_DEV_INITRD -static int __init early_initrd(char *p) -{ - unsigned long start, size; - char *endp; - - start = memparse(p, &endp); - if (*endp == ',') { - size = memparse(endp + 1, NULL); - - phys_initrd_start = start; - phys_initrd_size = size; - } - return 0; -} -early_param("initrd", early_initrd); -#endif - /* * This keeps memory configuration data used by a couple memory * initialization functions, as well as show_mem() for the skipping diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c index 45865b72f4ea..732d21f4a637 100644 --- a/init/do_mounts_initrd.c +++ b/init/do_mounts_initrd.c @@ -27,6 +27,23 @@ static int __init no_initrd(char *str) __setup("noinitrd", no_initrd); +static int __init early_initrd(char *p) +{ + phys_addr_t start; + unsigned long size; + char *endp; + + start = memparse(p, &endp); + if (*endp == ',') { + size = memparse(endp + 1, NULL); + + phys_initrd_start = start; + phys_initrd_size = size; + } + return 0; +} +early_param("initrd", early_initrd); + static int init_linuxrc(struct subprocess_info *info, struct cred *new) { ksys_unshare(CLONE_FS | CLONE_FILES); -- 2.17.1