Platforms export their SMP callbacks by populating arc_smp_ops.
The population itself needs to be done pretty early, from init_early
callback.
Signed-off-by: Vineet Gupta <vgu...@synopsys.com>
Cc: Arnd Bergmann <a...@arndb.de>
---
arch/arc/plat-arcfpga/include/plat/smp.h | 1 +
arch/arc/plat-arcfpga/platform.c | 4 +++
arch/arc/plat-arcfpga/smp.c | 41 ++++++++++++++++-------------
3 files changed, 28 insertions(+), 18 deletions(-)
diff --git a/arch/arc/plat-arcfpga/include/plat/smp.h
b/arch/arc/plat-arcfpga/include/plat/smp.h
index 27822ac..c09eb4c 100644
--- a/arch/arc/plat-arcfpga/include/plat/smp.h
+++ b/arch/arc/plat-arcfpga/include/plat/smp.h
@@ -111,6 +111,7 @@ extern void idu_irq_set_tgtcpu(uint8_t irq, uint32_t mask);
extern void idu_irq_set_mode(uint8_t irq, uint8_t dest_mode, uint8_t
trig_mode);
extern void iss_model_init_smp(unsigned int cpu);
+extern void iss_model_init_early_smp(void);
#endif /* CONFIG_SMP */
diff --git a/arch/arc/plat-arcfpga/platform.c b/arch/arc/plat-arcfpga/platform.c
index 1a9f2f2..b99bfea 100644
--- a/arch/arc/plat-arcfpga/platform.c
+++ b/arch/arc/plat-arcfpga/platform.c
@@ -171,6 +171,10 @@ static void __init plat_fpga_early_init(void)
setup_bvci_lat_unit();
arc_fpga_serial_init();
+
+#ifdef CONFIG_SMP
+ iss_model_init_early_smp();
+#endif
}
static struct of_dev_auxdata plat_auxdata_lookup[] __initdata = {
diff --git a/arch/arc/plat-arcfpga/smp.c b/arch/arc/plat-arcfpga/smp.c
index 68a53b1..91b5534 100644
--- a/arch/arc/plat-arcfpga/smp.c
+++ b/arch/arc/plat-arcfpga/smp.c
@@ -24,25 +24,10 @@ static char smp_cpuinfo_buf[128];
*-------------------------------------------------------------------
*/
-const char *arc_platform_smp_cpuinfo(void)
-{
-#define IS_AVAIL1(var, str) ((var) ? str : "")
-
- struct bcr_mp mp;
-
- READ_BCR(ARC_REG_MP_BCR, mp);
-
- sprintf(smp_cpuinfo_buf, "Extn [700-SMP]: v%d, arch(%d) %s %s %s\n",
- mp.ver, mp.mp_arch, IS_AVAIL1(mp.scu, "SCU"),
- IS_AVAIL1(mp.idu, "IDU"), IS_AVAIL1(mp.sdu, "SDU"));
-
- return smp_cpuinfo_buf;
-}
-
/*
* Master kick starting another CPU
*/
-void arc_platform_smp_wakeup_cpu(int cpu, unsigned long pc)
+static void iss_model_smp_wakeup_cpu(int cpu, unsigned long pc)
{
/* setup the start PC */
write_aux_reg(ARC_AUX_XTL_REG_PARAM, pc);
@@ -103,19 +88,39 @@ void iss_model_init_smp(unsigned int cpu)
smp_ipi_irq_setup(cpu, IDU_INTERRUPT_0 + cpu);
}
-void arc_platform_ipi_send(const struct cpumask *callmap)
+static void iss_model_ipi_send(void *arg)
{
+ struct cpumask *callmap = arg;
unsigned int cpu;
for_each_cpu(cpu, callmap)
idu_irq_assert(cpu);
}
-void arc_platform_ipi_clear(int cpu, int irq)
+static void iss_model_ipi_clear(int cpu, int irq)
{
idu_irq_clear(IDU_INTERRUPT_0 + cpu);
}
+void iss_model_init_early_smp(void)
+{
+#define IS_AVAIL1(var, str) ((var) ? str : "")
+
+ struct bcr_mp mp;
+
+ READ_BCR(ARC_REG_MP_BCR, mp);
+
+ sprintf(smp_cpuinfo_buf, "Extn [ISS-SMP]: v%d, arch(%d) %s %s %s\n",
+ mp.ver, mp.mp_arch, IS_AVAIL1(mp.scu, "SCU"),
+ IS_AVAIL1(mp.idu, "IDU"), IS_AVAIL1(mp.sdu, "SDU"));
+
+ plat_smp_ops.info = smp_cpuinfo_buf;
+
+ plat_smp_ops.cpu_kick = iss_model_smp_wakeup_cpu;
+ plat_smp_ops.ipi_send = iss_model_ipi_send;
+ plat_smp_ops.ipi_clear = iss_model_ipi_clear;
+}
+
/*
*-------------------------------------------------------------------
* Low level Platform IPI Providers
--
1.7.4.1
--
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