From: Tao Xu <tao3.xu@intel.com>
To: mst@redhat.com, imammedo@redhat.com, eblake@redhat.com,
ehabkost@redhat.com, marcel.apfelbaum@gmail.com,
armbru@redhat.com, mdroth@linux.vnet.ibm.com, thuth@redhat.com,
lvivier@redhat.com
Cc: jingqi.liu@intel.com, tao3.xu@intel.com, fan.du@intel.com,
qemu-devel@nongnu.org, jonathan.cameron@huawei.com
Subject: [PATCH v15 07/12] numa: Calculate hmat latency and bandwidth entry list
Date: Thu, 7 Nov 2019 15:45:06 +0800 [thread overview]
Message-ID: <20191107074511.14304-8-tao3.xu@intel.com> (raw)
In-Reply-To: <20191107074511.14304-1-tao3.xu@intel.com>
Compress HMAT latency and bandwidth raw data into uint16_t data,
which can be stored in HMAT table.
Suggested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Tao Xu <tao3.xu@intel.com>
---
No changes in v15.
Changes in v14:
- Convert latency from ns to ps, because ACPI 6.3 HMAT table use
ps as minimum unit
---
hw/core/numa.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 58 insertions(+), 1 deletion(-)
diff --git a/hw/core/numa.c b/hw/core/numa.c
index f391760c20..523dd80822 100644
--- a/hw/core/numa.c
+++ b/hw/core/numa.c
@@ -483,6 +483,47 @@ static void complete_init_numa_distance(MachineState *ms)
}
}
+static void calculate_hmat_entry_list(HMAT_LB_Info *hmat_lb, int num_nodes)
+{
+ int i, index;
+ uint16_t *entry_list;
+ uint64_t base;
+ GArray *lb_data_list;
+ HMAT_LB_Data *lb_data;
+
+ if (hmat_lb->data_type <= HMAT_LB_DATA_WRITE_LATENCY) {
+ base = hmat_lb->base_latency;
+ lb_data_list = hmat_lb->latency;
+ } else {
+ base = hmat_lb->base_bandwidth;
+ lb_data_list = hmat_lb->bandwidth;
+ }
+
+ entry_list = g_malloc0(lb_data_list->len * sizeof(uint16_t));
+ for (i = 0; i < lb_data_list->len; i++) {
+ lb_data = &g_array_index(lb_data_list, HMAT_LB_Data, i);
+ index = lb_data->initiator * num_nodes + lb_data->target;
+ if (entry_list[index]) {
+ error_report("Duplicate configuration of the latency for "
+ "initiator=%d and target=%d.", lb_data->initiator,
+ lb_data->target);
+ exit(1);
+ }
+
+ entry_list[index] = (uint16_t)(lb_data->rawdata / base);
+ }
+
+ if (hmat_lb->data_type <= HMAT_LB_DATA_WRITE_LATENCY) {
+ /* Convert latency base from nanoseconds to picosecond */
+ hmat_lb->base_latency = base * 1000;
+ hmat_lb->entry_latency = entry_list;
+ } else {
+ /* Convert bandwidth base from Byte to Megabyte */
+ hmat_lb->base_bandwidth = base / MiB;
+ hmat_lb->entry_bandwidth = entry_list;
+ }
+}
+
void numa_legacy_auto_assign_ram(MachineClass *mc, NodeInfo *nodes,
int nb_nodes, ram_addr_t size)
{
@@ -521,9 +562,10 @@ void numa_default_auto_assign_ram(MachineClass *mc, NodeInfo *nodes,
void numa_complete_configuration(MachineState *ms)
{
- int i;
+ int i, hierarchy, type;
MachineClass *mc = MACHINE_GET_CLASS(ms);
NodeInfo *numa_info = ms->numa_state->nodes;
+ HMAT_LB_Info *numa_hmat_lb;
/*
* If memory hotplug is enabled (slots > 0) but without '-numa'
@@ -620,6 +662,21 @@ void numa_complete_configuration(MachineState *ms)
/* Validation succeeded, now fill in any missing distances. */
complete_init_numa_distance(ms);
}
+
+ if (ms->numa_state->hmat_enabled) {
+ for (hierarchy = HMAT_LB_MEM_MEMORY;
+ hierarchy <= HMAT_LB_MEM_CACHE_3RD_LEVEL; hierarchy++) {
+ for (type = HMAT_LB_DATA_ACCESS_LATENCY;
+ type <= HMAT_LB_DATA_WRITE_BANDWIDTH; type++) {
+ numa_hmat_lb = ms->numa_state->hmat_lb[hierarchy][type];
+
+ if (numa_hmat_lb) {
+ calculate_hmat_entry_list(numa_hmat_lb,
+ ms->numa_state->num_nodes);
+ }
+ }
+ }
+ }
}
}
--
2.20.1
next prev parent reply other threads:[~2019-11-07 7:52 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-07 7:44 [PATCH v15 00/12] Build ACPI Heterogeneous Memory Attribute Table (HMAT) Tao Xu
2019-11-07 7:45 ` [PATCH v15 01/12] util/cutils: refactor do_strtosz() to support suffixes list Tao Xu
2019-11-07 17:52 ` Eduardo Habkost
2019-11-07 7:45 ` [PATCH v15 02/12] util/cutils: Add qemu_strtotime_ns() Tao Xu
2019-11-07 17:55 ` Eduardo Habkost
2019-11-07 7:45 ` [PATCH v15 03/12] qapi: Add builtin type time Tao Xu
2019-11-07 7:45 ` [PATCH v15 04/12] tests: Add test for QAPI " Tao Xu
2019-11-07 7:45 ` [PATCH v15 05/12] numa: Extend CLI to provide initiator information for numa nodes Tao Xu
2019-11-07 7:45 ` [PATCH v15 06/12] numa: Extend CLI to provide memory latency and bandwidth information Tao Xu
2019-11-08 11:42 ` Igor Mammedov
2019-11-07 7:45 ` Tao Xu [this message]
2019-11-08 12:12 ` [PATCH v15 07/12] numa: Calculate hmat latency and bandwidth entry list Igor Mammedov
2019-11-07 7:45 ` [PATCH v15 08/12] numa: Extend CLI to provide memory side cache information Tao Xu
2019-11-08 13:34 ` Igor Mammedov
2019-11-07 7:45 ` [PATCH v15 09/12] hmat acpi: Build Memory Proximity Domain Attributes Structure(s) Tao Xu
2019-11-08 13:44 ` Igor Mammedov
2019-11-11 1:21 ` Tao Xu
2019-11-07 7:45 ` [PATCH v15 10/12] hmat acpi: Build System Locality Latency and Bandwidth Information Structure(s) Tao Xu
2019-11-08 14:11 ` Igor Mammedov
2019-11-07 7:45 ` [PATCH v15 11/12] hmat acpi: Build Memory Side Cache " Tao Xu
2019-11-08 14:39 ` Igor Mammedov
2019-11-07 7:45 ` [PATCH v15 12/12] tests/bios-tables-test: add test cases for ACPI HMAT Tao Xu
2019-11-08 14:51 ` Igor Mammedov
2019-11-07 9:03 ` [PATCH v15 00/12] Build ACPI Heterogeneous Memory Attribute Table (HMAT) Michael S. Tsirkin
2019-11-08 0:57 ` Tao Xu
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