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powerpc/pseries: Increase minimum RMO size from 64MB to 256MB

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The minimum RMO size field in ibm,client-architecture is currently
ignored, but a future firmware version will rectify that. Since we
always get at least 128MB of RMO right now, asking for 64MB is
likely to result in boot failures.

We should bump it to at least 128MB, but considering all the boot
issues we have on 128MB RMO boxes and all new machines have virtual
RMO, we may as well set our minimum to 256MB.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Anton Blanchard 2011-12-04 13:13:58 +00:00 committed by Benjamin Herrenschmidt
parent 8a3e3d31d1
commit 3339264042
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/kernel/prom_init.c
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@ -742,7 +742,7 @@ static unsigned char ibm_architecture_vec[] = {
W(0xffffffff), /* virt_base */
W(0xffffffff), /* virt_size */
W(0xffffffff), /* load_base */
W(64), /* 64MB min RMA */
W(256), /* 256MB min RMA */
W(0xffffffff), /* full client load */
0, /* min RMA percentage of total RAM */
48, /* max log_2(hash table size) */