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From: tip-bot for Kan Liang <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: mingo@kernel.org, hpa@zytor.com, peterz@infradead.org,
	linux-kernel@vger.kernel.org, tglx@linutronix.de,
	kan.liang@linux.intel.com, len.brown@intel.com
Subject: [tip:x86/topology] perf/x86/intel/uncore: Support multi-die/package
Date: Thu, 23 May 2019 02:31:15 -0700	[thread overview]
Message-ID: <tip-1ff4a47b2d0c13b755b2eeeb0e23be6c056d5dd9@git.kernel.org> (raw)
In-Reply-To: <a25bba4a5b480aa4e9f8190005d7f5f53e29c8da.1557769318.git.len.brown@intel.com>

Commit-ID:  1ff4a47b2d0c13b755b2eeeb0e23be6c056d5dd9
Gitweb:     https://git.kernel.org/tip/1ff4a47b2d0c13b755b2eeeb0e23be6c056d5dd9
Author:     Kan Liang <kan.liang@linux.intel.com>
AuthorDate: Mon, 13 May 2019 13:58:57 -0400
Committer:  Thomas Gleixner <tglx@linutronix.de>
CommitDate: Thu, 23 May 2019 10:08:35 +0200

perf/x86/intel/uncore: Support multi-die/package

Uncore becomes die-scope on Xeon Cascade Lake-AP. Uncore driver needs to
support die-scope uncore units.

Use topology_logical_die_id() to replace topology_logical_package_id().
For previous platforms which doesn't have multi-die,
topology_logical_die_id() is identical as topology_logical_package_id().

In pci_probe()/remove(), the group id reads from PCI BUS is logical die id
for multi-die systems.

Use topology_die_cpumask() to replace topology_core_cpumask().
For previous platforms which doesn't have multi-die,
topology_die_cpumask() is identical as topology_core_cpumask().

There is no functional change for previous platforms.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/a25bba4a5b480aa4e9f8190005d7f5f53e29c8da.1557769318.git.len.brown@intel.com

---
 arch/x86/events/intel/uncore.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
index fc40a1473058..aeb5eae83750 100644
--- a/arch/x86/events/intel/uncore.c
+++ b/arch/x86/events/intel/uncore.c
@@ -100,7 +100,7 @@ ssize_t uncore_event_show(struct kobject *kobj,
 
 struct intel_uncore_box *uncore_pmu_to_box(struct intel_uncore_pmu *pmu, int cpu)
 {
-	unsigned int pkgid = topology_logical_package_id(cpu);
+	unsigned int pkgid = topology_logical_die_id(cpu);
 
 	/*
 	 * The unsigned check also catches the '-1' return value for non
@@ -942,7 +942,8 @@ static int uncore_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id
 	if (phys_id < 0)
 		return -ENODEV;
 
-	pkg = topology_phys_to_logical_pkg(phys_id);
+	pkg = (topology_max_die_per_package() > 1) ? phys_id :
+					topology_phys_to_logical_pkg(phys_id);
 	if (pkg < 0)
 		return -EINVAL;
 
@@ -1033,7 +1034,8 @@ static void uncore_pci_remove(struct pci_dev *pdev)
 
 	box = pci_get_drvdata(pdev);
 	if (!box) {
-		pkg = topology_phys_to_logical_pkg(phys_id);
+		pkg = (topology_max_die_per_package() > 1) ? phys_id :
+					topology_phys_to_logical_pkg(phys_id);
 		for (i = 0; i < UNCORE_EXTRA_PCI_DEV_MAX; i++) {
 			if (uncore_extra_pci_dev[pkg].dev[i] == pdev) {
 				uncore_extra_pci_dev[pkg].dev[i] = NULL;
@@ -1110,7 +1112,7 @@ static void uncore_change_type_ctx(struct intel_uncore_type *type, int old_cpu,
 	struct intel_uncore_box *box;
 	int i, pkg;
 
-	pkg = topology_logical_package_id(old_cpu < 0 ? new_cpu : old_cpu);
+	pkg = topology_logical_die_id(old_cpu < 0 ? new_cpu : old_cpu);
 	for (i = 0; i < type->num_boxes; i++, pmu++) {
 		box = pmu->boxes[pkg];
 		if (!box)
@@ -1151,7 +1153,7 @@ static int uncore_event_cpu_offline(unsigned int cpu)
 	if (!cpumask_test_and_clear_cpu(cpu, &uncore_cpu_mask))
 		goto unref;
 	/* Find a new cpu to collect uncore events */
-	target = cpumask_any_but(topology_core_cpumask(cpu), cpu);
+	target = cpumask_any_but(topology_die_cpumask(cpu), cpu);
 
 	/* Migrate uncore events to the new target */
 	if (target < nr_cpu_ids)
@@ -1164,7 +1166,7 @@ static int uncore_event_cpu_offline(unsigned int cpu)
 
 unref:
 	/* Clear the references */
-	pkg = topology_logical_package_id(cpu);
+	pkg = topology_logical_die_id(cpu);
 	for (; *types; types++) {
 		type = *types;
 		pmu = type->pmus;
@@ -1223,7 +1225,7 @@ static int uncore_event_cpu_online(unsigned int cpu)
 	struct intel_uncore_box *box;
 	int i, ret, pkg, target;
 
-	pkg = topology_logical_package_id(cpu);
+	pkg = topology_logical_die_id(cpu);
 	ret = allocate_boxes(types, pkg, cpu);
 	if (ret)
 		return ret;
@@ -1242,7 +1244,7 @@ static int uncore_event_cpu_online(unsigned int cpu)
 	 * Check if there is an online cpu in the package
 	 * which collects uncore events already.
 	 */
-	target = cpumask_any_and(&uncore_cpu_mask, topology_core_cpumask(cpu));
+	target = cpumask_any_and(&uncore_cpu_mask, topology_die_cpumask(cpu));
 	if (target < nr_cpu_ids)
 		return 0;
 
@@ -1417,7 +1419,7 @@ static int __init intel_uncore_init(void)
 	if (boot_cpu_has(X86_FEATURE_HYPERVISOR))
 		return -ENODEV;
 
-	max_packages = topology_max_packages();
+	max_packages = topology_max_packages() * topology_max_die_per_package();
 
 	uncore_init = (struct intel_uncore_init_fun *)id->driver_data;
 	if (uncore_init->pci_init) {

  reply	other threads:[~2019-05-23  9:33 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-13 17:58 [PATCH 01/19] x86 topology: Add CPUID.1F multi-die/package support Len Brown
2019-05-13 17:58 ` [PATCH 03/19] cpu topology: Export die_id Len Brown
2019-05-23  9:24   ` [tip:x86/topology] cpu/topology: " tip-bot for Len Brown
2019-05-13 17:58 ` [PATCH 04/19] x86 topology: Define topology_die_id() Len Brown
2019-05-23  9:24   ` [tip:x86/topology] x86/topology: " tip-bot for Len Brown
2019-05-13 17:58 ` [PATCH 05/19] x86 topology: Define topology_logical_die_id() Len Brown
2019-05-23  9:25   ` [tip:x86/topology] x86/topology: " tip-bot for Len Brown
2019-05-13 17:58 ` [PATCH 06/19] powercap/intel_rapl: Simplify rapl_find_package() Len Brown
2019-05-23  9:26   ` [tip:x86/topology] " tip-bot for Zhang Rui
2019-05-13 17:58 ` [PATCH 07/19] powercap/intel_rapl: Support multi-die/package Len Brown
2019-05-23  9:26   ` [tip:x86/topology] " tip-bot for Zhang Rui
2019-05-13 17:58 ` [PATCH 08/19] thermal/x86_pkg_temp_thermal: " Len Brown
2019-05-23  9:27   ` [tip:x86/topology] " tip-bot for Zhang Rui
2019-05-13 17:58 ` [PATCH 09/19] powercap/intel_rapl: Update RAPL domain name and debug messages Len Brown
2019-05-23  9:28   ` [tip:x86/topology] " tip-bot for Zhang Rui
2019-05-13 17:58 ` [PATCH 10/19] hwmon/coretemp: Support multi-die/package Len Brown
2019-05-23  9:29   ` [tip:x86/topology] " tip-bot for Zhang Rui
2019-05-13 17:58 ` [PATCH 11/19] topology: Create package_cpus sysfs attribute Len Brown
2019-05-23  9:29   ` [tip:x86/topology] " tip-bot for Len Brown
2019-05-13 17:58 ` [PATCH 12/19] topology: Create core_cpus and die_cpus sysfs attributes Len Brown
2019-05-23  9:30   ` [tip:x86/topology] " tip-bot for Len Brown
2019-05-13 17:58 ` [PATCH 13/19] perf/x86/intel/uncore: Support multi-die/package Len Brown
2019-05-23  9:31   ` tip-bot for Kan Liang [this message]
2019-05-13 17:58 ` [PATCH 14/19] perf/x86/intel/rapl: " Len Brown
2019-05-23  9:31   ` [tip:x86/topology] " tip-bot for Kan Liang
2019-05-13 17:58 ` [PATCH 15/19] perf/x86/intel/cstate: " Len Brown
2019-05-23  9:32   ` [tip:x86/topology] " tip-bot for Kan Liang
2019-05-13 17:59 ` [PATCH 16/19] thermal/x86_pkg_temp_thermal: Cosmetic: Rename internal variables to zones from packages Len Brown
2019-05-23  9:33   ` [tip:x86/topology] " tip-bot for Len Brown
2019-05-13 17:59 ` [PATCH 17/19] hwmon/coretemp: " Len Brown
2019-05-23  9:34   ` [tip:x86/topology] " tip-bot for Len Brown
2019-05-13 17:59 ` [PATCH 18/19] perf/x86/intel/uncore: Cosmetic renames in response to multi-die/pkg support Len Brown
2019-05-23  9:34   ` [tip:x86/topology] " tip-bot for Kan Liang
2019-05-13 17:59 ` [PATCH 19/19] perf/x86/intel/rapl: Cosmetic rename internal variables " Len Brown
2019-05-23  9:35   ` [tip:x86/topology] " tip-bot for Kan Liang
  -- strict thread matches above, loose matches on Subject: below --
2019-05-13 17:58 [PATCH 0/19] v6 multi-die/package topology support Len Brown
2019-05-15  8:55 ` Peter Zijlstra
2019-05-15 16:38   ` Ingo Molnar
2019-05-22 20:44 ` Ingo Molnar

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