path: root/arch/powerpc/platforms/pseries/setup.c
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authorPaul Mackerras <paulus@samba.org>2010-08-12 20:18:48 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-09-02 14:07:31 +1000
commit93c22703efa72c7527dbd586d1951c1f4a85fd70 (patch)
treee0da49adffc89b068645ef2c577fbebe093faf8c /arch/powerpc/platforms/pseries/setup.c
parent8154c5d22d91cd16bd9985b0638c8957e4688d0e (diff)
powerpc: Dynamically allocate most lppaca structs
This arranges for the lppaca structs for most cpus to be dynamically allocated in the same manner as the paca structs. If we don't include support for legacy iSeries, only the first lppaca is statically allocated; the rest are dynamically allocated. If we include legacy iSeries support, then we statically allocate the first 64 lppaca structs, since the iSeries hypervisor requires that the lppaca structs be present in the data section of the kernel image, but legacy iSeries supports at most 64 cpus. With CONFIG_NR_CPUS, the kernel image size for a typical pSeries config went from: text data bss dec hex filename 9524478 4734564 8469944 22728986 15ad11a ../test-1024/vmlinux to: text data bss dec hex filename 9524482 3751508 8469944 21745934 14bd10e ../test-1024/vmlinux a reduction of 983052 bytes overall. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/pseries/setup.c')
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