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| author | Deng-Cheng Zhu <dengcheng.zhu@imgtec.com> | 2013-10-30 20:52:10 (GMT) |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-01-22 19:19:02 (GMT) |
| commit | 1336113a6c93fa345f7465e066313e5629f581d9 (patch) | |
| tree | 9c20905bc377b7c1fa41b34cdfd305f687b9a10b /arch | |
| parent | da615cf603e209fdf2e5917d84e070b34dd8daa1 (diff) | |
| download | linux-1336113a6c93fa345f7465e066313e5629f581d9.tar.xz | |
MIPS: APRP: Add support for Malta CMP platform.
Malta with multi-core CM platforms can now use APRP functionality.
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Reviewed-by: Qais Yousef <Qais.Yousef@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6096/
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/include/asm/amon.h | 4 | ||||
| -rw-r--r-- | arch/mips/mti-malta/malta-amon.c | 24 | ||||
| -rw-r--r-- | arch/mips/mti-malta/malta-int.c | 12 |
3 files changed, 35 insertions, 5 deletions
diff --git a/arch/mips/include/asm/amon.h b/arch/mips/include/asm/amon.h index c3dc1a6..3bd6e76 100644 --- a/arch/mips/include/asm/amon.h +++ b/arch/mips/include/asm/amon.h @@ -3,5 +3,5 @@ */ int amon_cpu_avail(int); -void amon_cpu_start(int, unsigned long, unsigned long, - unsigned long, unsigned long); +int amon_cpu_start(int, unsigned long, unsigned long, + unsigned long, unsigned long); diff --git a/arch/mips/mti-malta/malta-amon.c b/arch/mips/mti-malta/malta-amon.c index 1e47844..917df6d 100644 --- a/arch/mips/mti-malta/malta-amon.c +++ b/arch/mips/mti-malta/malta-amon.c @@ -25,6 +25,7 @@ #include <asm/addrspace.h> #include <asm/mips-boards/launch.h> #include <asm/mipsmtregs.h> +#include <asm/vpe.h> int amon_cpu_avail(int cpu) { @@ -48,7 +49,7 @@ int amon_cpu_avail(int cpu) return 1; } -void amon_cpu_start(int cpu, +int amon_cpu_start(int cpu, unsigned long pc, unsigned long sp, unsigned long gp, unsigned long a0) { @@ -56,10 +57,10 @@ void amon_cpu_start(int cpu, (struct cpulaunch *)CKSEG0ADDR(CPULAUNCH); if (!amon_cpu_avail(cpu)) - return; + return -1; if (cpu == smp_processor_id()) { pr_debug("launch: I am cpu%d!\n", cpu); - return; + return -1; } launch += cpu; @@ -78,4 +79,21 @@ void amon_cpu_start(int cpu, ; smp_rmb(); /* Target will be updating flags soon */ pr_debug("launch: cpu%d gone!\n", cpu); + + return 0; +} + +#ifdef CONFIG_MIPS_VPE_LOADER +int vpe_run(struct vpe *v) +{ + struct vpe_notifications *n; + + if (amon_cpu_start(aprp_cpu_index(), v->__start, 0, 0, 0) < 0) + return -1; + + list_for_each_entry(n, &v->notify, list) + n->start(VPE_MODULE_MINOR); + + return 0; } +#endif diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c index 0892575..59a3fa5 100644 --- a/arch/mips/mti-malta/malta-int.c +++ b/arch/mips/mti-malta/malta-int.c @@ -2,6 +2,7 @@ * Carsten Langgaard, carstenl@mips.com * Copyright (C) 2000, 2001, 2004 MIPS Technologies, Inc. * Copyright (C) 2001 Ralf Baechle + * Copyright (C) 2013 Imagination Technologies Ltd. * * This program is free software; you can distribute it and/or modify it * under the terms of the GNU General Public License (Version 2) as @@ -44,6 +45,7 @@ #include <asm/gic.h> #include <asm/gcmpregs.h> #include <asm/setup.h> +#include <asm/rtlx.h> int gcmp_present = -1; static unsigned long _msc01_biu_base; @@ -126,6 +128,11 @@ static void malta_hw0_irqdispatch(void) } do_IRQ(MALTA_INT_BASE + irq); + +#ifdef MIPS_VPE_APSP_API + if (aprp_hook) + aprp_hook(); +#endif } static void malta_ipi_irqdispatch(void) @@ -313,6 +320,11 @@ static void ipi_call_dispatch(void) static irqreturn_t ipi_resched_interrupt(int irq, void *dev_id) { +#ifdef MIPS_VPE_APSP_API + if (aprp_hook) + aprp_hook(); +#endif + scheduler_ipi(); return IRQ_HANDLED; |