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| author | Noam Camus <noamc@ezchip.com> | 2013-06-03 15:17:25 +0300 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2016-05-09 09:32:33 +0530 |
| commit | 86c25466f7414d6396f1aaa13e4b34f36ec272d5 (patch) | |
| tree | 908b67ed82896362bcb7e438c8b6849ea3b2a2c7 /arch/arc/plat-eznps | |
| parent | b1f2f6f3cf5e37f0418f6cebf365cff7c3abf6d7 (diff) | |
| download | linux-0-day-86c25466f7414d6396f1aaa13e4b34f36ec272d5.tar.gz linux-0-day-86c25466f7414d6396f1aaa13e4b34f36ec272d5.tar.xz | |
ARC: [plat-eznps] Use dedicated identity auxiliary register.
With generic "identity" num of CPUs is limited to 256 (8 bit).
We use our alternative AUX register GLOBAL_ID (12 bit).
Now we can support up to 4096 CPUs.
Signed-off-by: Noam Camus <noamc@ezchip.com>
Diffstat (limited to 'arch/arc/plat-eznps')
| -rw-r--r-- | arch/arc/plat-eznps/include/plat/ctop.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arc/plat-eznps/include/plat/ctop.h b/arch/arc/plat-eznps/include/plat/ctop.h index 91b25f3dd39a1..9d6718c1a1998 100644 --- a/arch/arc/plat-eznps/include/plat/ctop.h +++ b/arch/arc/plat-eznps/include/plat/ctop.h @@ -195,6 +195,15 @@ struct nps_host_reg_aux_lpc { #define REG_GIM_P_INT_DST_25 nps_host_reg_non_cl(NPS_GIM_BLKID, 0x149) #define REG_GIM_P_INT_DST_26 nps_host_reg_non_cl(NPS_GIM_BLKID, 0x14A) +#else + +.macro GET_CPU_ID reg + lr \reg, [CTOP_AUX_LOGIC_GLOBAL_ID] +#ifndef CONFIG_EZNPS_MTM_EXT + lsr \reg, \reg, 4 +#endif +.endm + #endif /* __ASSEMBLY__ */ #endif /* _PLAT_EZNPS_CTOP_H */ |