svn commit: r227113 - in projects/pseries/powerpc: include powerpc
pseries
Nathan Whitehorn
nwhitehorn at FreeBSD.org
Sat Nov 5 17:29:28 UTC 2011
Author: nwhitehorn
Date: Sat Nov 5 17:29:28 2011
New Revision: 227113
URL: http://svn.freebsd.org/changeset/base/227113
Log:
Allow platform modules to set the CPU interrupt priority state, and
implement this on pSeries.
Modified:
projects/pseries/powerpc/include/platform.h
projects/pseries/powerpc/powerpc/mp_machdep.c
projects/pseries/powerpc/powerpc/platform.c
projects/pseries/powerpc/powerpc/platform_if.m
projects/pseries/powerpc/pseries/platform_chrp.c
Modified: projects/pseries/powerpc/include/platform.h
==============================================================================
--- projects/pseries/powerpc/include/platform.h Sat Nov 5 16:47:47 2011 (r227112)
+++ projects/pseries/powerpc/include/platform.h Sat Nov 5 17:29:28 2011 (r227113)
@@ -52,6 +52,7 @@ int platform_smp_first_cpu(struct cpuref
int platform_smp_next_cpu(struct cpuref *);
int platform_smp_get_bsp(struct cpuref *);
int platform_smp_start_cpu(struct pcpu *);
+void platform_smp_ap_init(void);
const char *installed_platform(void);
void platform_probe_and_attach(void);
Modified: projects/pseries/powerpc/powerpc/mp_machdep.c
==============================================================================
--- projects/pseries/powerpc/powerpc/mp_machdep.c Sat Nov 5 16:47:47 2011 (r227112)
+++ projects/pseries/powerpc/powerpc/mp_machdep.c Sat Nov 5 17:29:28 2011 (r227113)
@@ -90,6 +90,9 @@ machdep_ap_bootstrap(void)
#endif
decr_ap_init();
+ /* Give platform code a chance to do anything necessary */
+ platform_smp_ap_init();
+
/* Serialize console output and AP count increment */
mtx_lock_spin(&ap_boot_mtx);
ap_awake++;
Modified: projects/pseries/powerpc/powerpc/platform.c
==============================================================================
--- projects/pseries/powerpc/powerpc/platform.c Sat Nov 5 16:47:47 2011 (r227112)
+++ projects/pseries/powerpc/powerpc/platform.c Sat Nov 5 17:29:28 2011 (r227113)
@@ -141,6 +141,12 @@ platform_smp_start_cpu(struct pcpu *cpu)
return (PLATFORM_SMP_START_CPU(plat_obj, cpu));
}
+void
+platform_smp_ap_init()
+{
+ PLATFORM_SMP_AP_INIT(plat_obj);
+}
+
#ifdef SMP
struct cpu_group *
cpu_topo(void)
Modified: projects/pseries/powerpc/powerpc/platform_if.m
==============================================================================
--- projects/pseries/powerpc/powerpc/platform_if.m Sat Nov 5 16:47:47 2011 (r227112)
+++ projects/pseries/powerpc/powerpc/platform_if.m Sat Nov 5 17:29:28 2011 (r227113)
@@ -80,6 +80,10 @@ CODE {
{
return (VM_MAX_ADDRESS);
}
+ static void platform_null_smp_ap_init(platform_t plat)
+ {
+ return;
+ }
};
/**
@@ -185,6 +189,14 @@ METHOD int smp_start_cpu {
};
/**
+ * @brief Start a CPU
+ *
+ */
+METHOD void smp_ap_init {
+ platform_t _plat;
+} DEFAULT platform_null_smp_ap_init;
+
+/**
* @brief Return SMP topology
*/
METHOD cpu_group_t smp_topo {
Modified: projects/pseries/powerpc/pseries/platform_chrp.c
==============================================================================
--- projects/pseries/powerpc/pseries/platform_chrp.c Sat Nov 5 16:47:47 2011 (r227112)
+++ projects/pseries/powerpc/pseries/platform_chrp.c Sat Nov 5 17:29:28 2011 (r227113)
@@ -68,6 +68,7 @@ static u_long chrp_timebase_freq(platfor
static int chrp_smp_first_cpu(platform_t, struct cpuref *cpuref);
static int chrp_smp_next_cpu(platform_t, struct cpuref *cpuref);
static int chrp_smp_get_bsp(platform_t, struct cpuref *cpuref);
+static void chrp_smp_ap_init(platform_t);
#ifdef SMP
static int chrp_smp_start_cpu(platform_t, struct pcpu *cpu);
static struct cpu_group *chrp_smp_topo(platform_t plat);
@@ -85,6 +86,7 @@ static platform_method_t chrp_methods[]
PLATFORMMETHOD(platform_real_maxaddr, chrp_real_maxaddr),
PLATFORMMETHOD(platform_timebase_freq, chrp_timebase_freq),
+ PLATFORMMETHOD(platform_smp_ap_init, chrp_smp_ap_init),
PLATFORMMETHOD(platform_smp_first_cpu, chrp_smp_first_cpu),
PLATFORMMETHOD(platform_smp_next_cpu, chrp_smp_next_cpu),
PLATFORMMETHOD(platform_smp_get_bsp, chrp_smp_get_bsp),
@@ -128,6 +130,9 @@ chrp_attach(platform_t plat)
pmap_mmu_install("mmu_phyp", BUS_PROBE_SPECIFIC);
cpu_idle_hook = phyp_cpu_idle;
+
+ /* Set interrupt priority */
+ phyp_hcall(H_CPPR, 0xff);
}
#endif
@@ -368,4 +373,13 @@ phyp_cpu_idle(void)
{
phyp_hcall(H_CEDE);
}
+
+static void
+chrp_smp_ap_init(platform_t platform)
+{
+ if (!(mfmsr() & PSL_HV)) {
+ /* Set interrupt priority */
+ phyp_hcall(H_CPPR, 0xff);
+ }
+}
#endif
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