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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-01-27 17:14:02 +0100
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-01-27 17:14:02 +0100
commit6c02b7b1610f873888af20f291c07730889ff0f9 (patch)
tree1b33e6642cc81605b8d37c0bda0abff0ba64fa2d /arch/powerpc/sysdev/xics/icp-hv.c
parentx86: xen: size struct xen_spinlock to always fit in arch_spinlock_t (diff)
parentLinux 3.3-rc1 (diff)
downloadlinux-6c02b7b1610f873888af20f291c07730889ff0f9.tar.xz
linux-6c02b7b1610f873888af20f291c07730889ff0f9.zip
Merge commit 'v3.3-rc1' into stable/for-linus-fixes-3.3
* commit 'v3.3-rc1': (9775 commits) Linux 3.3-rc1 x86, syscall: Need __ARCH_WANT_SYS_IPC for 32 bits qnx4: don't leak ->BitMap on late failure exits qnx4: reduce the insane nesting in qnx4_checkroot() qnx4: di_fname is an array, for crying out loud... KEYS: Permit key_serial() to be called with a const key pointer keys: fix user_defined key sparse messages ima: fix cred sparse warning uml: fix compile for x86-64 MPILIB: Add a missing ENOMEM check tpm: fix (ACPI S3) suspend regression nvme: fix merge error due to change of 'make_request_fn' fn type xen: using EXPORT_SYMBOL requires including export.h gpio: tps65910: Use correct offset for gpio initialization acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec intel_idle: Split up and provide per CPU initialization func ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2 tg3: Fix single-vector MSI-X code openvswitch: Fix multipart datapath dumps. ipv6: fix per device IP snmp counters ...
Diffstat (limited to 'arch/powerpc/sysdev/xics/icp-hv.c')
-rw-r--r--arch/powerpc/sysdev/xics/icp-hv.c47
1 files changed, 32 insertions, 15 deletions
diff --git a/arch/powerpc/sysdev/xics/icp-hv.c b/arch/powerpc/sysdev/xics/icp-hv.c
index 9518d367a64f..253dce98c16e 100644
--- a/arch/powerpc/sysdev/xics/icp-hv.c
+++ b/arch/powerpc/sysdev/xics/icp-hv.c
@@ -27,33 +27,50 @@ static inline unsigned int icp_hv_get_xirr(unsigned char cppr)
{
unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
long rc;
+ unsigned int ret = XICS_IRQ_SPURIOUS;
rc = plpar_hcall(H_XIRR, retbuf, cppr);
- if (rc != H_SUCCESS)
- panic(" bad return code xirr - rc = %lx\n", rc);
- return (unsigned int)retbuf[0];
-}
+ if (rc == H_SUCCESS) {
+ ret = (unsigned int)retbuf[0];
+ } else {
+ pr_err("%s: bad return code xirr cppr=0x%x returned %ld\n",
+ __func__, cppr, rc);
+ WARN_ON_ONCE(1);
+ }
-static inline void icp_hv_set_xirr(unsigned int value)
-{
- long rc = plpar_hcall_norets(H_EOI, value);
- if (rc != H_SUCCESS)
- panic("bad return code EOI - rc = %ld, value=%x\n", rc, value);
+ return ret;
}
static inline void icp_hv_set_cppr(u8 value)
{
long rc = plpar_hcall_norets(H_CPPR, value);
- if (rc != H_SUCCESS)
- panic("bad return code cppr - rc = %lx\n", rc);
+ if (rc != H_SUCCESS) {
+ pr_err("%s: bad return code cppr cppr=0x%x returned %ld\n",
+ __func__, value, rc);
+ WARN_ON_ONCE(1);
+ }
+}
+
+static inline void icp_hv_set_xirr(unsigned int value)
+{
+ long rc = plpar_hcall_norets(H_EOI, value);
+ if (rc != H_SUCCESS) {
+ pr_err("%s: bad return code eoi xirr=0x%x returned %ld\n",
+ __func__, value, rc);
+ WARN_ON_ONCE(1);
+ icp_hv_set_cppr(value >> 24);
+ }
}
static inline void icp_hv_set_qirr(int n_cpu , u8 value)
{
- long rc = plpar_hcall_norets(H_IPI, get_hard_smp_processor_id(n_cpu),
- value);
- if (rc != H_SUCCESS)
- panic("bad return code qirr - rc = %lx\n", rc);
+ int hw_cpu = get_hard_smp_processor_id(n_cpu);
+ long rc = plpar_hcall_norets(H_IPI, hw_cpu, value);
+ if (rc != H_SUCCESS) {
+ pr_err("%s: bad return code qirr cpu=%d hw_cpu=%d mfrr=0x%x "
+ "returned %ld\n", __func__, n_cpu, hw_cpu, value, rc);
+ WARN_ON_ONCE(1);
+ }
}
static void icp_hv_eoi(struct irq_data *d)