diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2014-02-28 09:13:44 +0100 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2014-05-05 10:52:12 +0200 |
| commit | 9a091d9e8450a4cec76bd208bbbb017a12795416 (patch) | |
| tree | 8514ab63d65757e3827c90006fb3bf1c9b295e81 /arch/arc/plat-arcfpga | |
| parent | Linux 3.15-rc4 (diff) | |
| download | linux-9a091d9e8450a4cec76bd208bbbb017a12795416.tar.xz linux-9a091d9e8450a4cec76bd208bbbb017a12795416.zip | |
ARC: [SMP] ISS SMP extension bitrot
* Move extension specific code out of common SMP code
* Don't enable it by default for SMP
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/plat-arcfpga')
| -rw-r--r-- | arch/arc/plat-arcfpga/Makefile | 2 | ||||
| -rw-r--r-- | arch/arc/plat-arcfpga/platform.c | 4 | ||||
| -rw-r--r-- | arch/arc/plat-arcfpga/smp.c | 18 |
3 files changed, 21 insertions, 3 deletions
diff --git a/arch/arc/plat-arcfpga/Makefile b/arch/arc/plat-arcfpga/Makefile index a44e22ebc1b7..4d1bddc34b5b 100644 --- a/arch/arc/plat-arcfpga/Makefile +++ b/arch/arc/plat-arcfpga/Makefile @@ -9,4 +9,4 @@ KBUILD_CFLAGS += -Iarch/arc/plat-arcfpga/include obj-y := platform.o irq.o -obj-$(CONFIG_SMP) += smp.o +obj-$(CONFIG_ISS_SMP_EXTN) += smp.o diff --git a/arch/arc/plat-arcfpga/platform.c b/arch/arc/plat-arcfpga/platform.c index 19b76b61f44b..213394a15cd2 100644 --- a/arch/arc/plat-arcfpga/platform.c +++ b/arch/arc/plat-arcfpga/platform.c @@ -169,7 +169,7 @@ static void __init plat_fpga_early_init(void) arc_fpga_serial_init(); -#ifdef CONFIG_SMP +#ifdef CONFIG_ISS_SMP_EXTN iss_model_init_early_smp(); #endif } @@ -211,7 +211,7 @@ MACHINE_START(ANGEL4, "angel4") .init_early = plat_fpga_early_init, .init_machine = plat_fpga_populate_dev, .init_irq = plat_fpga_init_IRQ, -#ifdef CONFIG_SMP +#ifdef CONFIG_ISS_SMP_EXTN .init_smp = iss_model_init_smp, #endif MACHINE_END diff --git a/arch/arc/plat-arcfpga/smp.c b/arch/arc/plat-arcfpga/smp.c index 8a12741f5f7a..92bad9122077 100644 --- a/arch/arc/plat-arcfpga/smp.c +++ b/arch/arc/plat-arcfpga/smp.c @@ -42,6 +42,24 @@ static void iss_model_smp_wakeup_cpu(int cpu, unsigned long pc) } +static inline int get_hw_config_num_irq(void) +{ + uint32_t val = read_aux_reg(ARC_REG_VECBASE_BCR); + + switch (val & 0x03) { + case 0: + return 16; + case 1: + return 32; + case 2: + return 8; + default: + return 0; + } + + return 0; +} + /* * Any SMP specific init any CPU does when it comes up. * Here we setup the CPU to enable Inter-Processor-Interrupts |