diff options
Diffstat (limited to 'arch/tile/include/asm/smp.h')
| -rw-r--r-- | arch/tile/include/asm/smp.h | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/arch/tile/include/asm/smp.h b/arch/tile/include/asm/smp.h index da24858..532124a 100644 --- a/arch/tile/include/asm/smp.h +++ b/arch/tile/include/asm/smp.h @@ -20,6 +20,7 @@ #include <asm/processor.h> #include <linux/cpumask.h> #include <linux/irqreturn.h> +#include <hv/hypervisor.h> /* Set up this tile to support receiving hypervisor messages */ void init_messaging(void); @@ -39,9 +40,6 @@ void send_IPI_single(int dest, int tag); /* Process an IPI message */ void evaluate_message(int tag); -/* Process an IRQ_RESCHEDULE IPI. */ -irqreturn_t handle_reschedule_ipi(int irq, void *token); - /* Boot a secondary cpu */ void online_secondary(void); @@ -56,6 +54,20 @@ extern HV_Topology smp_topology; #define smp_height (smp_topology.height) #define smp_width (smp_topology.width) +/* Convenience functions for converting cpu <-> coords. */ +static inline int cpu_x(int cpu) +{ + return cpu % smp_width; +} +static inline int cpu_y(int cpu) +{ + return cpu / smp_width; +} +static inline int xy_to_cpu(int x, int y) +{ + return y * smp_width + x; +} + /* Hypervisor message tags sent via the tile send_IPI*() routines. */ #define MSG_TAG_START_CPU 1 #define MSG_TAG_STOP_CPU 2 @@ -85,6 +97,9 @@ void print_disabled_cpus(void); #define smp_master_cpu 0 #define smp_height 1 #define smp_width 1 +#define cpu_x(cpu) 0 +#define cpu_y(cpu) 0 +#define xy_to_cpu(x, y) 0 #endif /* !CONFIG_SMP */ @@ -123,4 +138,10 @@ static inline int __cpulist_parse_crop(const char *buf, struct cpumask *dstp, return bitmap_parselist_crop(buf, cpumask_bits(dstp), nbits); } +/* Initialize the IPI subsystem. */ +void ipi_init(void); + +/* Function for start-cpu message to cause us to jump to. */ +extern unsigned long start_cpu_function_addr; + #endif /* _ASM_TILE_SMP_H */ |