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authorIngo Molnar <mingo@kernel.org>2016-04-13 11:36:44 +0200
committerIngo Molnar <mingo@kernel.org>2016-04-13 11:36:44 +0200
commit95a8e746f82bdda5d8a443b6557c930782d65b86 (patch)
tree6047fecc66e133c10d04be7b0bec89069c3e1654 /arch/x86/kernel
parentd8d1c35139481ee8e292d91cd3fd35a6b3a316eb (diff)
parenta3125494cff084b098c80bb36fbe2061ffed9d52 (diff)
Merge branch 'x86/urgent' into x86/asm to pick up dependent fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/amd_nb.c6
-rw-r--r--arch/x86/kernel/cpu/amd.c12
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce-genpool.c4
-rw-r--r--arch/x86/kernel/cpu/powerflags.c2
-rw-r--r--arch/x86/kernel/smpboot.c2
5 files changed, 11 insertions, 15 deletions
diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index 29fa475ec518..a147e676fc7b 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -170,15 +170,13 @@ int amd_get_subcaches(int cpu)
{
struct pci_dev *link = node_to_amd_nb(amd_get_nb_id(cpu))->link;
unsigned int mask;
- int cuid;
if (!amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
return 0;
pci_read_config_dword(link, 0x1d4, &mask);
- cuid = cpu_data(cpu).compute_unit_id;
- return (mask >> (4 * cuid)) & 0xf;
+ return (mask >> (4 * cpu_data(cpu).cpu_core_id)) & 0xf;
}
int amd_set_subcaches(int cpu, unsigned long mask)
@@ -204,7 +202,7 @@ int amd_set_subcaches(int cpu, unsigned long mask)
pci_write_config_dword(nb->misc, 0x1b8, reg & ~0x180000);
}
- cuid = cpu_data(cpu).compute_unit_id;
+ cuid = cpu_data(cpu).cpu_core_id;
mask <<= 4 * cuid;
mask |= (0xf ^ (1 << cuid)) << 26;
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 02ac79b6256e..19d7dcfc8b3e 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -300,7 +300,6 @@ static int nearby_node(int apicid)
#ifdef CONFIG_SMP
static void amd_get_topology(struct cpuinfo_x86 *c)
{
- u32 cores_per_cu = 1;
u8 node_id;
int cpu = smp_processor_id();
@@ -313,8 +312,8 @@ static void amd_get_topology(struct cpuinfo_x86 *c)
/* get compute unit information */
smp_num_siblings = ((ebx >> 8) & 3) + 1;
- c->compute_unit_id = ebx & 0xff;
- cores_per_cu += ((ebx >> 8) & 3);
+ c->x86_max_cores /= smp_num_siblings;
+ c->cpu_core_id = ebx & 0xff;
} else if (cpu_has(c, X86_FEATURE_NODEID_MSR)) {
u64 value;
@@ -325,19 +324,16 @@ static void amd_get_topology(struct cpuinfo_x86 *c)
/* fixup multi-node processor information */
if (nodes_per_socket > 1) {
- u32 cores_per_node;
u32 cus_per_node;
set_cpu_cap(c, X86_FEATURE_AMD_DCM);
- cores_per_node = c->x86_max_cores / nodes_per_socket;
- cus_per_node = cores_per_node / cores_per_cu;
+ cus_per_node = c->x86_max_cores / nodes_per_socket;
/* store NodeID, use llc_shared_map to store sibling info */
per_cpu(cpu_llc_id, cpu) = node_id;
/* core id has to be in the [0 .. cores_per_node - 1] range */
- c->cpu_core_id %= cores_per_node;
- c->compute_unit_id %= cus_per_node;
+ c->cpu_core_id %= cus_per_node;
}
}
#endif
diff --git a/arch/x86/kernel/cpu/mcheck/mce-genpool.c b/arch/x86/kernel/cpu/mcheck/mce-genpool.c
index 0a850100c594..2658e2af74ec 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-genpool.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-genpool.c
@@ -29,7 +29,7 @@ static char gen_pool_buf[MCE_POOLSZ];
void mce_gen_pool_process(void)
{
struct llist_node *head;
- struct mce_evt_llist *node;
+ struct mce_evt_llist *node, *tmp;
struct mce *mce;
head = llist_del_all(&mce_event_llist);
@@ -37,7 +37,7 @@ void mce_gen_pool_process(void)
return;
head = llist_reverse_order(head);
- llist_for_each_entry(node, head, llnode) {
+ llist_for_each_entry_safe(node, tmp, head, llnode) {
mce = &node->mce;
atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, mce);
gen_pool_free(mce_evt_pool, (unsigned long)node, sizeof(*node));
diff --git a/arch/x86/kernel/cpu/powerflags.c b/arch/x86/kernel/cpu/powerflags.c
index 31f0f335ed22..1dd8294fd730 100644
--- a/arch/x86/kernel/cpu/powerflags.c
+++ b/arch/x86/kernel/cpu/powerflags.c
@@ -18,4 +18,6 @@ const char *const x86_power_flags[32] = {
"", /* tsc invariant mapped to constant_tsc */
"cpb", /* core performance boost */
"eff_freq_ro", /* Readonly aperf/mperf */
+ "proc_feedback", /* processor feedback interface */
+ "acc_power", /* accumulated power mechanism */
};
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index b2c99f811c3f..a2065d3b3b39 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -422,7 +422,7 @@ static bool match_smt(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
if (c->phys_proc_id == o->phys_proc_id &&
per_cpu(cpu_llc_id, cpu1) == per_cpu(cpu_llc_id, cpu2) &&
- c->compute_unit_id == o->compute_unit_id)
+ c->cpu_core_id == o->cpu_core_id)
return topology_sane(c, o, "smt");
} else if (c->phys_proc_id == o->phys_proc_id &&