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Merge branch 'mips-next-3.9' of git://git.linux-mips.org/pub/scm/john/linux-john into mips-for-linux-next

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This commit is contained in:
Ralf Baechle
2013-02-21 12:51:33 +01:00
parent 612663a974 535237ceca
commit 8bfc245f9a
300 changed files with 5451 additions and 1968 deletions
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35
arch/mips/netlogic/xlp/wakeup.c
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@@ -51,7 +51,7 @@
#include <asm/netlogic/xlp-hal/xlp.h>
#include <asm/netlogic/xlp-hal/sys.h>
static int xlp_wakeup_core(uint64_t sysbase, int core)
static int xlp_wakeup_core(uint64_t sysbase, int node, int core)
{
uint32_t coremask, value;
int count;
@@ -82,36 +82,51 @@ static void xlp_enable_secondary_cores(const cpumask_t *wakeup_mask)
struct nlm_soc_info *nodep;
uint64_t syspcibase;
uint32_t syscoremask;
int core, n, cpu;
int core, n, cpu, count, val;
for (n = 0; n < NLM_NR_NODES; n++) {
syspcibase = nlm_get_sys_pcibase(n);
if (nlm_read_reg(syspcibase, 0) == 0xffffffff)
break;
/* read cores in reset from SYS and account for boot cpu */
nlm_node_init(n);
/* read cores in reset from SYS */
if (n != 0)
nlm_node_init(n);
nodep = nlm_get_node(n);
syscoremask = nlm_read_sys_reg(nodep->sysbase, SYS_CPU_RESET);
if (n == 0)
/* The boot cpu */
if (n == 0) {
syscoremask |= 1;
nodep->coremask = 1;
}
for (core = 0; core < NLM_CORES_PER_NODE; core++) {
/* we will be on node 0 core 0 */
if (n == 0 && core == 0)
continue;
/* see if the core exists */
if ((syscoremask & (1 << core)) == 0)
continue;
/* see if at least the first thread is enabled */
/* see if at least the first hw thread is enabled */
cpu = (n * NLM_CORES_PER_NODE + core)
* NLM_THREADS_PER_CORE;
if (!cpumask_test_cpu(cpu, wakeup_mask))
continue;
/* wake up the core */
if (xlp_wakeup_core(nodep->sysbase, core))
nodep->coremask |= 1u << core;
else
pr_err("Failed to enable core %d\n", core);
if (!xlp_wakeup_core(nodep->sysbase, n, core))
continue;
/* core is up */
nodep->coremask |= 1u << core;
/* spin until the first hw thread sets its ready */
count = 0x20000000;
do {
val = *(volatile int *)&nlm_cpu_ready[cpu];
} while (val == 0 && --count > 0);
}
}
}