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| author | Jon Loeliger <jdl@jdl.com> | 2006-06-17 17:51:09 -0500 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-06-21 15:01:27 +1000 |
| commit | 8a30088794ff426cd3e21557db8f3d2687ac6695 (patch) | |
| tree | c6265fec921408ba689ef6c0e59236c88149c52c /arch/powerpc/kernel/prom.c | |
| parent | 2198c070498850c16d65c09bc587e3f5042126ef (diff) | |
| download | linux-8a30088794ff426cd3e21557db8f3d2687ac6695.tar.gz linux-8a30088794ff426cd3e21557db8f3d2687ac6695.tar.bz2 linux-8a30088794ff426cd3e21557db8f3d2687ac6695.zip | |
[POWERPC] Prevent duplicate lmb reservations for Device Tree blob.
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/prom.c')
| -rw-r--r-- | arch/powerpc/kernel/prom.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index d77d24a89b39..629023240ece 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -1267,13 +1267,16 @@ static void __init early_reserve_mem(void) { u64 base, size; u64 *reserve_map; + unsigned long self_base; + unsigned long self_size; reserve_map = (u64 *)(((unsigned long)initial_boot_params) + initial_boot_params->off_mem_rsvmap); /* before we do anything, lets reserve the dt blob */ - lmb_reserve(__pa((unsigned long)initial_boot_params), - initial_boot_params->totalsize); + self_base = __pa((unsigned long)initial_boot_params); + self_size = initial_boot_params->totalsize; + lmb_reserve(self_base, self_size); #ifdef CONFIG_PPC32 /* @@ -1289,6 +1292,9 @@ static void __init early_reserve_mem(void) size_32 = *(reserve_map_32++); if (size_32 == 0) break; + /* skip if the reservation is for the blob */ + if (base_32 == self_base && size_32 == self_size) + continue; DBG("reserving: %x -> %x\n", base_32, size_32); lmb_reserve(base_32, size_32); } @@ -1300,6 +1306,9 @@ static void __init early_reserve_mem(void) size = *(reserve_map++); if (size == 0) break; + /* skip if the reservation is for the blob */ + if (base == self_base && size == self_size) + continue; DBG("reserving: %llx -> %llx\n", base, size); lmb_reserve(base, size); } |