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authorJayachandran C <jchandra@broadcom.com>2014-01-14 12:39:15 +0100
committerRalf Baechle <ralf@linux-mips.org>2014-01-24 22:39:50 +0100
commite92e1d0d789634f8136c7ca1cb7d679acc3c52b0 (patch)
tree6d45c181f9cdb1f99cf1aacf5bfc1a34824a37a5 /arch/mips/netlogic
parent194d315da86af504559a8a21026360097575bd55 (diff)
downloadlinux-e92e1d0d789634f8136c7ca1cb7d679acc3c52b0.tar.gz
MIPS: Netlogic: Core wakeup improvements
Move wakeup to after early console. This will allow us to display error messages when cores are not woken up. Also reduce the wait time for core to come up. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6303/
Diffstat (limited to 'arch/mips/netlogic')
-rw-r--r--arch/mips/netlogic/xlp/setup.c14
-rw-r--r--arch/mips/netlogic/xlp/wakeup.c8
2 files changed, 13 insertions, 9 deletions
diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c
index 2a39bbeb45b..c3af2d8772c 100644
--- a/arch/mips/netlogic/xlp/setup.c
+++ b/arch/mips/netlogic/xlp/setup.c
@@ -96,6 +96,14 @@ static void __init xlp_init_mem_from_bars(void)
void __init plat_mem_setup(void)
{
+#ifdef CONFIG_SMP
+ nlm_wakeup_secondary_cpus();
+
+ /* update TLB size after waking up threads */
+ current_cpu_data.tlbsize = ((read_c0_config6() >> 16) & 0xffff) + 1;
+
+ register_smp_ops(&nlm_smp_ops);
+#endif
panic_timeout = 5;
_machine_restart = (void (*)(char *))nlm_linux_exit;
_machine_halt = nlm_linux_exit;
@@ -172,11 +180,5 @@ void __init prom_init(void)
#ifdef CONFIG_SMP
cpumask_setall(&nlm_cpumask);
- nlm_wakeup_secondary_cpus();
-
- /* update TLB size after waking up threads */
- current_cpu_data.tlbsize = ((read_c0_config6() >> 16) & 0xffff) + 1;
-
- register_smp_ops(&nlm_smp_ops);
#endif
}
diff --git a/arch/mips/netlogic/xlp/wakeup.c b/arch/mips/netlogic/xlp/wakeup.c
index bbd53f8e92d..4eb7cdb8a0f 100644
--- a/arch/mips/netlogic/xlp/wakeup.c
+++ b/arch/mips/netlogic/xlp/wakeup.c
@@ -96,7 +96,7 @@ static int wait_for_cpus(int cpu, int bootcpu)
volatile uint32_t *cpu_ready = nlm_get_boot_data(BOOT_CPU_READY);
int i, count, notready;
- count = 0x20000000;
+ count = 0x800000;
do {
notready = nlm_threads_per_core;
for (i = 0; i < nlm_threads_per_core; i++)
@@ -188,7 +188,8 @@ static void xlp_enable_secondary_cores(const cpumask_t *wakeup_mask)
nodep->coremask |= 1u << core;
/* spin until the hw threads sets their ready */
- wait_for_cpus(cpu, 0);
+ if (!wait_for_cpus(cpu, 0))
+ pr_err("Node %d : timeout core %d\n", n, core);
}
}
}
@@ -200,7 +201,8 @@ void xlp_wakeup_secondary_cpus()
* first wakeup core 0 threads
*/
xlp_boot_core0_siblings();
- wait_for_cpus(0, 0);
+ if (!wait_for_cpus(0, 0))
+ pr_err("Node 0 : timeout core 0\n");
/* now get other cores out of reset */
xlp_enable_secondary_cores(&nlm_cpumask);