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| author | Finn Thain <fthain@linux-m68k.org> | 2021-11-19 09:29:38 +1100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2021-11-29 11:04:46 +0100 |
| commit | 376e3fdecb0dcae216c0ac559cff066f460bf47b (patch) | |
| tree | ea97a6d994af2d6eb84740d14f77c108f2c00a03 | |
| parent | fa55b7dcdc43c1aa1ba12bca9d2dd4318c2a0dbf (diff) | |
| download | linux-376e3fdecb0dcae216c0ac559cff066f460bf47b.tar.gz | |
m68k: Enable memtest functionality
Enable the memtest functionality and rearrange some code to prevent it from clobbering the initrd. The code to implement CONFIG_BLK_DEV_INITRD was conditional on !defined(CONFIG_SUN3). For simplicity, remove that test on the basis that m68k_ramdisk.size == 0 on Sun 3. The SLIME source code at http://sammy.net/sun3/ftp/pub/m68k/sun3/slime/slime-2.0.tar.gz indicates that no BI_RAMDISK entry is ever passed to the kernel due to #ifdef 0 around the relevant code. Cc: Mike Rapoport <rppt@kernel.org> Cc: Sam Creasey <sammy@sammy.net> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Finn Thain <fthain@linux-m68k.org> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Link: https://lore.kernel.org/r/8170fe1d1c62426d82275d36ba409ecc18754292.1637274578.git.fthain@linux-m68k.org Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 2 | ||||
| -rw-r--r-- | arch/m68k/Kconfig | 1 | ||||
| -rw-r--r-- | arch/m68k/kernel/setup_mm.c | 15 | ||||
| -rw-r--r-- | arch/m68k/mm/motorola.c | 2 |
4 files changed, 10 insertions, 10 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 9725c546a0d4..3a28ec79f3aa 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -2934,7 +2934,7 @@ both parameters are enabled, hugetlb_free_vmemmap takes precedence over memory_hotplug.memmap_on_memory. - memtest= [KNL,X86,ARM,PPC,RISCV] Enable memtest + memtest= [KNL,X86,ARM,M68K,PPC,RISCV] Enable memtest Format: <integer> default : 0 <disable> Specifies the number of memtest passes to be diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 0b50da08a9c5..4cae3fbe7f97 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -9,6 +9,7 @@ config M68K select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS select ARCH_MIGHT_HAVE_PC_PARPORT if ISA select ARCH_NO_PREEMPT if !COLDFIRE + select ARCH_USE_MEMTEST if MMU_MOTOROLA select ARCH_WANT_IPC_PARSE_VERSION select BINFMT_FLAT_ARGVP_ENVP_ON_STACK select DMA_DIRECT_REMAP if HAS_DMA && MMU && !COLDFIRE diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c index 4b51bfd38e5f..49e573b94326 100644 --- a/arch/m68k/kernel/setup_mm.c +++ b/arch/m68k/kernel/setup_mm.c @@ -338,13 +338,6 @@ void __init setup_arch(char **cmdline_p) panic("No configuration setup"); } - paging_init(); - -#ifdef CONFIG_NATFEAT - nf_init(); -#endif - -#ifndef CONFIG_SUN3 #ifdef CONFIG_BLK_DEV_INITRD if (m68k_ramdisk.size) { memblock_reserve(m68k_ramdisk.addr, m68k_ramdisk.size); @@ -354,6 +347,12 @@ void __init setup_arch(char **cmdline_p) } #endif + paging_init(); + +#ifdef CONFIG_NATFEAT + nf_init(); +#endif + #ifdef CONFIG_ATARI if (MACH_IS_ATARI) atari_stram_reserve_pages((void *)availmem); @@ -364,8 +363,6 @@ void __init setup_arch(char **cmdline_p) } #endif -#endif /* !CONFIG_SUN3 */ - /* set ISA defs early as possible */ #if defined(CONFIG_ISA) && defined(MULTI_ISA) if (MACH_IS_Q40) { diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c index 2b05bb2bac00..ecbe948f4c1a 100644 --- a/arch/m68k/mm/motorola.c +++ b/arch/m68k/mm/motorola.c @@ -457,6 +457,8 @@ void __init paging_init(void) flush_tlb_all(); + early_memtest(min_addr, max_addr); + /* * initialize the bad page table and bad page to point * to a couple of allocated pages |