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| author | Timur Tabi <timur@freescale.com> | 2011-08-05 16:15:24 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-09-29 19:01:05 -0500 |
| commit | fbb9ecf7493fbd6b8c8af7d52e90c915459f7040 (patch) | |
| tree | b19bce4d9c77be58fc1aba43bd73625222c99f8f /arch/powerpc/include | |
| parent | 86df5142a14868ea0e24511f4293d43a611a2b39 (diff) | |
| download | u-boot-imx-fbb9ecf7493fbd6b8c8af7d52e90c915459f7040.zip u-boot-imx-fbb9ecf7493fbd6b8c8af7d52e90c915459f7040.tar.gz u-boot-imx-fbb9ecf7493fbd6b8c8af7d52e90c915459f7040.tar.bz2 | |
powerpc/mp: add support for discontiguous cores
Some SOCs have discontiguously-numbered cores, and so we can't determine the
valid core numbers via the FRR register any more. We define
CPU_TYPE_ENTRY_MASK to specify a discontiguous core mask, and helper functions
to process the mask and enumerate over the set of valid cores.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/processor.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 0c4cc25..50af6e7 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -1176,13 +1176,17 @@ struct cpu_type { char name[15]; u32 soc_ver; u32 num_cores; + u32 mask; /* which cpu(s) actually exist */ }; struct cpu_type *identify_cpu(u32 ver); #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) #define CPU_TYPE_ENTRY(n, v, nc) \ - { .name = #n, .soc_ver = SVR_##v, .num_cores = (nc), } + { .name = #n, .soc_ver = SVR_##v, .num_cores = (nc), \ + .mask = (1 << (nc)) - 1 } +#define CPU_TYPE_ENTRY_MASK(n, v, nc, m) \ + { .name = #n, .soc_ver = SVR_##v, .num_cores = (nc), .mask = (m) } #else #if defined(CONFIG_MPC83xx) #define CPU_TYPE_ENTRY(x) {#x, SPR_##x} |