diff options
| author | Graf Yang <graf.yang@analog.com> | 2009-01-07 23:14:39 +0800 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2009-01-07 23:14:39 +0800 |
| commit | 46fa5eecec58934902ea4a65d9c7b7a486ac6f6b (patch) | |
| tree | b7373553151456c620d9747785de322b30d11548 /arch/blackfin/Kconfig | |
| parent | 8f65873e47784a390949f0d61e5692dbf2a8253e (diff) | |
| download | linux-46fa5eecec58934902ea4a65d9c7b7a486ac6f6b.tar.bz2 | |
Blackfin arch: SMP supporting patchset: some other misc code
Blackfin dual core BF561 processor can support SMP like features.
https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like
In this patch, we provide SMP extend to some other misc code
Singed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/Kconfig')
| -rw-r--r-- | arch/blackfin/Kconfig | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index 004c06ce3198..3a468436258d 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -200,6 +200,32 @@ config BF561 endchoice +config SMP + depends on BF561 + bool "Symmetric multi-processing support" + ---help--- + This enables support for systems with more than one CPU, + like the dual core BF561. If you have a system with only one + CPU, say N. If you have a system with more than one CPU, say Y. + + If you don't know what to do here, say N. + +config NR_CPUS + int + depends on SMP + default 2 if BF561 + +config IRQ_PER_CPU + bool + depends on SMP + default y + +config TICK_SOURCE_SYSTMR0 + bool + select BFIN_GPTIMERS + depends on SMP + default y + config BF_REV_MIN int default 0 if (BF51x || BF52x || BF54x) @@ -502,6 +528,7 @@ source kernel/Kconfig.hz config GENERIC_TIME bool "Generic time" + depends on !SMP default y config GENERIC_CLOCKEVENTS @@ -576,6 +603,7 @@ endmenu menu "Blackfin Kernel Optimizations" + depends on !SMP comment "Memory Optimizations" @@ -738,7 +766,6 @@ config BFIN_INS_LOWOVERHEAD endmenu - choice prompt "Kernel executes from" help @@ -804,9 +831,11 @@ config BFIN_ICACHE_LOCK choice prompt "Policy" depends on BFIN_DCACHE - default BFIN_WB + default BFIN_WB if !SMP + default BFIN_WT if SMP config BFIN_WB bool "Write back" + depends on !SMP help Write Back Policy: Cached data will be written back to SDRAM only when needed. |