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authorDavid S. Miller <davem@davemloft.net>2015-04-02 22:16:53 +0200
committerDavid S. Miller <davem@davemloft.net>2015-04-02 22:16:53 +0200
commit9f0d34bc344889c2e6c593bd949d7ab821f0f4a5 (patch)
treee5bfc776a09315afa4dbcae97ac04f2cca239c96 /arch/powerpc
parentMerge branch 'netdev_iflink_remove' (diff)
parentMerge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma (diff)
downloadlinux-9f0d34bc344889c2e6c593bd949d7ab821f0f4a5.tar.xz
linux-9f0d34bc344889c2e6c593bd949d7ab821f0f4a5.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/usb/asix_common.c drivers/net/usb/sr9800.c drivers/net/usb/usbnet.c include/linux/usb/usbnet.h net/ipv4/tcp_ipv4.c net/ipv6/tcp_ipv6.c The TCP conflicts were overlapping changes. In 'net' we added a READ_ONCE() to the socket cached RX route read, whilst in 'net-next' Eric Dumazet touched the surrounding code dealing with how mini sockets are handled. With USB, it's a case of the same bug fix first going into net-next and then I cherry picked it back into net. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/ppc-opcode.h3
-rw-r--r--arch/powerpc/include/asm/reg.h3
-rw-r--r--arch/powerpc/kernel/cputable.c20
-rw-r--r--arch/powerpc/kernel/dbell.c2
-rw-r--r--arch/powerpc/kernel/exceptions-64s.S2
-rw-r--r--arch/powerpc/kvm/book3s_hv.c8
-rw-r--r--arch/powerpc/kvm/book3s_hv_rmhandlers.S1
-rw-r--r--arch/powerpc/platforms/powernv/smp.c14
-rw-r--r--arch/powerpc/platforms/pseries/mobility.c44
9 files changed, 69 insertions, 28 deletions
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index 2eadde0b98fb..5c93f691b495 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -153,6 +153,7 @@
#define PPC_INST_MFSPR_PVR_MASK 0xfc1fffff
#define PPC_INST_MFTMR 0x7c0002dc
#define PPC_INST_MSGSND 0x7c00019c
+#define PPC_INST_MSGCLR 0x7c0001dc
#define PPC_INST_MSGSNDP 0x7c00011c
#define PPC_INST_MTTMR 0x7c0003dc
#define PPC_INST_NOP 0x60000000
@@ -311,6 +312,8 @@
___PPC_RB(b) | __PPC_EH(eh))
#define PPC_MSGSND(b) stringify_in_c(.long PPC_INST_MSGSND | \
___PPC_RB(b))
+#define PPC_MSGCLR(b) stringify_in_c(.long PPC_INST_MSGCLR | \
+ ___PPC_RB(b))
#define PPC_MSGSNDP(b) stringify_in_c(.long PPC_INST_MSGSNDP | \
___PPC_RB(b))
#define PPC_POPCNTB(a, s) stringify_in_c(.long PPC_INST_POPCNTB | \
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 1c874fb533bb..af56b5c6c81a 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -608,13 +608,16 @@
#define SRR1_ISI_N_OR_G 0x10000000 /* ISI: Access is no-exec or G */
#define SRR1_ISI_PROT 0x08000000 /* ISI: Other protection fault */
#define SRR1_WAKEMASK 0x00380000 /* reason for wakeup */
+#define SRR1_WAKEMASK_P8 0x003c0000 /* reason for wakeup on POWER8 */
#define SRR1_WAKESYSERR 0x00300000 /* System error */
#define SRR1_WAKEEE 0x00200000 /* External interrupt */
#define SRR1_WAKEMT 0x00280000 /* mtctrl */
#define SRR1_WAKEHMI 0x00280000 /* Hypervisor maintenance */
#define SRR1_WAKEDEC 0x00180000 /* Decrementer interrupt */
+#define SRR1_WAKEDBELL 0x00140000 /* Privileged doorbell on P8 */
#define SRR1_WAKETHERM 0x00100000 /* Thermal management interrupt */
#define SRR1_WAKERESET 0x00100000 /* System reset */
+#define SRR1_WAKEHDBELL 0x000c0000 /* Hypervisor doorbell on P8 */
#define SRR1_WAKESTATE 0x00030000 /* Powersave exit mask [46:47] */
#define SRR1_WS_DEEPEST 0x00030000 /* Some resources not maintained,
* may not be recoverable */
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index f337666768a7..f83046878336 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -437,6 +437,26 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check_early = __machine_check_early_realmode_p8,
.platform = "power8",
},
+ { /* Power8NVL */
+ .pvr_mask = 0xffff0000,
+ .pvr_value = 0x004c0000,
+ .cpu_name = "POWER8NVL (raw)",
+ .cpu_features = CPU_FTRS_POWER8,
+ .cpu_user_features = COMMON_USER_POWER8,
+ .cpu_user_features2 = COMMON_USER2_POWER8,
+ .mmu_features = MMU_FTRS_POWER8,
+ .icache_bsize = 128,
+ .dcache_bsize = 128,
+ .num_pmcs = 6,
+ .pmc_type = PPC_PMC_IBM,
+ .oprofile_cpu_type = "ppc64/power8",
+ .oprofile_type = PPC_OPROFILE_INVALID,
+ .cpu_setup = __setup_cpu_power8,
+ .cpu_restore = __restore_cpu_power8,
+ .flush_tlb = __flush_tlb_power8,
+ .machine_check_early = __machine_check_early_realmode_p8,
+ .platform = "power8",
+ },
{ /* Power8 DD1: Does not support doorbell IPIs */
.pvr_mask = 0xffffff00,
.pvr_value = 0x004d0100,
diff --git a/arch/powerpc/kernel/dbell.c b/arch/powerpc/kernel/dbell.c
index f4217819cc31..2128f3a96c32 100644
--- a/arch/powerpc/kernel/dbell.c
+++ b/arch/powerpc/kernel/dbell.c
@@ -17,6 +17,7 @@
#include <asm/dbell.h>
#include <asm/irq_regs.h>
+#include <asm/kvm_ppc.h>
#ifdef CONFIG_SMP
void doorbell_setup_this_cpu(void)
@@ -41,6 +42,7 @@ void doorbell_exception(struct pt_regs *regs)
may_hard_irq_enable();
+ kvmppc_set_host_ipi(smp_processor_id(), 0);
__this_cpu_inc(irq_stat.doorbell_irqs);
smp_ipi_demux();
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index c2df8150bd7a..9519e6bdc6d7 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1408,7 +1408,7 @@ machine_check_handle_early:
bne 9f /* continue in V mode if we are. */
5:
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
/*
* We are coming from kernel context. Check if we are coming from
* guest. if yes, then we can continue. We will fall through
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index de4018a1bc4b..de747563d29d 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -636,7 +636,7 @@ static int kvmppc_get_yield_count(struct kvm_vcpu *vcpu)
spin_lock(&vcpu->arch.vpa_update_lock);
lppaca = (struct lppaca *)vcpu->arch.vpa.pinned_addr;
if (lppaca)
- yield_count = lppaca->yield_count;
+ yield_count = be32_to_cpu(lppaca->yield_count);
spin_unlock(&vcpu->arch.vpa_update_lock);
return yield_count;
}
@@ -942,20 +942,20 @@ static int kvm_arch_vcpu_ioctl_set_sregs_hv(struct kvm_vcpu *vcpu,
static void kvmppc_set_lpcr(struct kvm_vcpu *vcpu, u64 new_lpcr,
bool preserve_top32)
{
+ struct kvm *kvm = vcpu->kvm;
struct kvmppc_vcore *vc = vcpu->arch.vcore;
u64 mask;
+ mutex_lock(&kvm->lock);
spin_lock(&vc->lock);
/*
* If ILE (interrupt little-endian) has changed, update the
* MSR_LE bit in the intr_msr for each vcpu in this vcore.
*/
if ((new_lpcr & LPCR_ILE) != (vc->lpcr & LPCR_ILE)) {
- struct kvm *kvm = vcpu->kvm;
struct kvm_vcpu *vcpu;
int i;
- mutex_lock(&kvm->lock);
kvm_for_each_vcpu(i, vcpu, kvm) {
if (vcpu->arch.vcore != vc)
continue;
@@ -964,7 +964,6 @@ static void kvmppc_set_lpcr(struct kvm_vcpu *vcpu, u64 new_lpcr,
else
vcpu->arch.intr_msr &= ~MSR_LE;
}
- mutex_unlock(&kvm->lock);
}
/*
@@ -981,6 +980,7 @@ static void kvmppc_set_lpcr(struct kvm_vcpu *vcpu, u64 new_lpcr,
mask &= 0xFFFFFFFF;
vc->lpcr = (vc->lpcr & ~mask) | (new_lpcr & mask);
spin_unlock(&vc->lock);
+ mutex_unlock(&kvm->lock);
}
static int kvmppc_get_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index bb94e6f20c81..6cbf1630cb70 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -1005,6 +1005,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
/* Save HEIR (HV emulation assist reg) in emul_inst
if this is an HEI (HV emulation interrupt, e40) */
li r3,KVM_INST_FETCH_FAILED
+ stw r3,VCPU_LAST_INST(r9)
cmpwi r12,BOOK3S_INTERRUPT_H_EMUL_ASSIST
bne 11f
mfspr r3,SPRN_HEIR
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index fc34025ef822..38a45088f633 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -33,6 +33,8 @@
#include <asm/runlatch.h>
#include <asm/code-patching.h>
#include <asm/dbell.h>
+#include <asm/kvm_ppc.h>
+#include <asm/ppc-opcode.h>
#include "powernv.h"
@@ -149,7 +151,7 @@ static int pnv_smp_cpu_disable(void)
static void pnv_smp_cpu_kill_self(void)
{
unsigned int cpu;
- unsigned long srr1;
+ unsigned long srr1, wmask;
u32 idle_states;
/* Standard hot unplug procedure */
@@ -161,6 +163,10 @@ static void pnv_smp_cpu_kill_self(void)
generic_set_cpu_dead(cpu);
smp_wmb();
+ wmask = SRR1_WAKEMASK;
+ if (cpu_has_feature(CPU_FTR_ARCH_207S))
+ wmask = SRR1_WAKEMASK_P8;
+
idle_states = pnv_get_supported_cpuidle_states();
/* We don't want to take decrementer interrupts while we are offline,
* so clear LPCR:PECE1. We keep PECE2 enabled.
@@ -191,10 +197,14 @@ static void pnv_smp_cpu_kill_self(void)
* having finished executing in a KVM guest, then srr1
* contains 0.
*/
- if ((srr1 & SRR1_WAKEMASK) == SRR1_WAKEEE) {
+ if ((srr1 & wmask) == SRR1_WAKEEE) {
icp_native_flush_interrupt();
local_paca->irq_happened &= PACA_IRQ_HARD_DIS;
smp_mb();
+ } else if ((srr1 & wmask) == SRR1_WAKEHDBELL) {
+ unsigned long msg = PPC_DBELL_TYPE(PPC_DBELL_SERVER);
+ asm volatile(PPC_MSGCLR(%0) : : "r" (msg));
+ kvmppc_set_host_ipi(cpu, 0);
}
if (cpu_core_split_required())
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
index 90cf3dcbd9f2..8f35d525cede 100644
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -25,10 +25,10 @@
static struct kobject *mobility_kobj;
struct update_props_workarea {
- u32 phandle;
- u32 state;
- u64 reserved;
- u32 nprops;
+ __be32 phandle;
+ __be32 state;
+ __be64 reserved;
+ __be32 nprops;
} __packed;
#define NODE_ACTION_MASK 0xff000000
@@ -54,11 +54,11 @@ static int mobility_rtas_call(int token, char *buf, s32 scope)
return rc;
}
-static int delete_dt_node(u32 phandle)
+static int delete_dt_node(__be32 phandle)
{
struct device_node *dn;
- dn = of_find_node_by_phandle(phandle);
+ dn = of_find_node_by_phandle(be32_to_cpu(phandle));
if (!dn)
return -ENOENT;
@@ -127,7 +127,7 @@ static int update_dt_property(struct device_node *dn, struct property **prop,
return 0;
}
-static int update_dt_node(u32 phandle, s32 scope)
+static int update_dt_node(__be32 phandle, s32 scope)
{
struct update_props_workarea *upwa;
struct device_node *dn;
@@ -136,6 +136,7 @@ static int update_dt_node(u32 phandle, s32 scope)
char *prop_data;
char *rtas_buf;
int update_properties_token;
+ u32 nprops;
u32 vd;
update_properties_token = rtas_token("ibm,update-properties");
@@ -146,7 +147,7 @@ static int update_dt_node(u32 phandle, s32 scope)
if (!rtas_buf)
return -ENOMEM;
- dn = of_find_node_by_phandle(phandle);
+ dn = of_find_node_by_phandle(be32_to_cpu(phandle));
if (!dn) {
kfree(rtas_buf);
return -ENOENT;
@@ -162,6 +163,7 @@ static int update_dt_node(u32 phandle, s32 scope)
break;
prop_data = rtas_buf + sizeof(*upwa);
+ nprops = be32_to_cpu(upwa->nprops);
/* On the first call to ibm,update-properties for a node the
* the first property value descriptor contains an empty
@@ -170,17 +172,17 @@ static int update_dt_node(u32 phandle, s32 scope)
*/
if (*prop_data == 0) {
prop_data++;
- vd = *(u32 *)prop_data;
+ vd = be32_to_cpu(*(__be32 *)prop_data);
prop_data += vd + sizeof(vd);
- upwa->nprops--;
+ nprops--;
}
- for (i = 0; i < upwa->nprops; i++) {
+ for (i = 0; i < nprops; i++) {
char *prop_name;
prop_name = prop_data;
prop_data += strlen(prop_name) + 1;
- vd = *(u32 *)prop_data;
+ vd = be32_to_cpu(*(__be32 *)prop_data);
prop_data += sizeof(vd);
switch (vd) {
@@ -212,13 +214,13 @@ static int update_dt_node(u32 phandle, s32 scope)
return 0;
}
-static int add_dt_node(u32 parent_phandle, u32 drc_index)
+static int add_dt_node(__be32 parent_phandle, __be32 drc_index)
{
struct device_node *dn;
struct device_node *parent_dn;
int rc;
- parent_dn = of_find_node_by_phandle(parent_phandle);
+ parent_dn = of_find_node_by_phandle(be32_to_cpu(parent_phandle));
if (!parent_dn)
return -ENOENT;
@@ -237,7 +239,7 @@ static int add_dt_node(u32 parent_phandle, u32 drc_index)
int pseries_devicetree_update(s32 scope)
{
char *rtas_buf;
- u32 *data;
+ __be32 *data;
int update_nodes_token;
int rc;
@@ -254,17 +256,17 @@ int pseries_devicetree_update(s32 scope)
if (rc && rc != 1)
break;
- data = (u32 *)rtas_buf + 4;
- while (*data & NODE_ACTION_MASK) {
+ data = (__be32 *)rtas_buf + 4;
+ while (be32_to_cpu(*data) & NODE_ACTION_MASK) {
int i;
- u32 action = *data & NODE_ACTION_MASK;
- int node_count = *data & NODE_COUNT_MASK;
+ u32 action = be32_to_cpu(*data) & NODE_ACTION_MASK;
+ u32 node_count = be32_to_cpu(*data) & NODE_COUNT_MASK;
data++;
for (i = 0; i < node_count; i++) {
- u32 phandle = *data++;
- u32 drc_index;
+ __be32 phandle = *data++;
+ __be32 drc_index;
switch (action) {
case DELETE_DT_NODE: