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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2011-01-07 13:25:29 +0100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2011-01-23 11:24:42 +0100 |
| commit | 5df1abdbd37af2ae317a1c5b5944173284dc55d6 (patch) | |
| tree | d247502612687d043ae408248cd9206aab237d77 /arch/m68k/amiga | |
| parent | de339e4b792aed799bec23251e83f594ac44ae04 (diff) | |
| download | lwn-5df1abdbd37af2ae317a1c5b5944173284dc55d6.tar.gz lwn-5df1abdbd37af2ae317a1c5b5944173284dc55d6.zip | |
m68k/amiga: Fix "debug=mem"
`debug=mem' on Amiga has been broken for a while.
early_param() processing is done very/too early, i.e. before
amiga_identify() / amiga_chip_init(), causing amiga_savekmsg_setup() not
to find any Chip RAM.
As we don't plan to free this memory anyway, just steal it from the initial
Chip RAM memory block instead.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k/amiga')
| -rw-r--r-- | arch/m68k/amiga/config.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c index b1577f741fa8..82a4bb51d5d8 100644 --- a/arch/m68k/amiga/config.c +++ b/arch/m68k/amiga/config.c @@ -610,17 +610,17 @@ static void amiga_mem_console_write(struct console *co, const char *s, static int __init amiga_savekmsg_setup(char *arg) { - static struct resource debug_res = { .name = "Debug" }; - if (!MACH_IS_AMIGA || strcmp(arg, "mem")) - goto done; + return 0; - if (!AMIGAHW_PRESENT(CHIP_RAM)) { - printk("Warning: no chipram present for debugging\n"); - goto done; + if (amiga_chip_size < SAVEKMSG_MAXMEM) { + pr_err("Not enough chipram for debugging\n"); + return -ENOMEM; } - savekmsg = amiga_chip_alloc_res(SAVEKMSG_MAXMEM, &debug_res); + /* Just steal the block, the chipram allocator isn't functional yet */ + amiga_chip_size -= SAVEKMSG_MAXMEM; + savekmsg = (void *)ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size); savekmsg->magic1 = SAVEKMSG_MAGIC1; savekmsg->magic2 = SAVEKMSG_MAGIC2; savekmsg->magicptr = ZTWO_PADDR(savekmsg); @@ -628,8 +628,6 @@ static int __init amiga_savekmsg_setup(char *arg) amiga_console_driver.write = amiga_mem_console_write; register_console(&amiga_console_driver); - -done: return 0; } |