diff mbox series

[v4,5/6] acpi: numa: Add setting of generic port system locality attributes

Message ID 168746999799.4115467.1487303283396718524.stgit@djiang5-mobl3
State New, archived
Headers show
Series acpi: numa: add target support for generic port to HMAT parsing | expand

Commit Message

Dave Jiang June 22, 2023, 9:39 p.m. UTC 
Add generic port support for the parsing of HMAT system locality sub-table.
The attributes will be added to the third array member of the access
coordinates in order to not mix with the existing memory attributes. It only
provides the system locality attributes from initator to the generic port
targets and is missing the rest of the data to the actual memory device.

The complete attributes will be updated when a memory device is
attached and the system locality information is calculated end to end.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>

---
v4:
- Update device_handle to gen_port_device_handle. (Jonathan)
- Reorder setting of access. (Jonathan)
v3:
- Drop continue after setting gen target access data. (Jonathan)
v2:
- Fix commit log runon sentence. (Jonathan)
- Add a check for memory type for skipping other access levels. (Jonathan)
- NODE_ACCESS_CLASS_GENPORT to NODE_ACCESS_CLASS_GENPORT_SINK. (Jonathan)
---
 drivers/acpi/numa/hmat.c |    5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/drivers/acpi/numa/hmat.c b/drivers/acpi/numa/hmat.c
index 957a38137c7e..aabd89c79e26 100644
--- a/drivers/acpi/numa/hmat.c
+++ b/drivers/acpi/numa/hmat.c
@@ -60,6 +60,7 @@  struct target_cache {
 enum {
 	NODE_ACCESS_CLASS_0 = 0,
 	NODE_ACCESS_CLASS_1,
+	NODE_ACCESS_CLASS_GENPORT_SINK,
 	NODE_ACCESS_CLASS_MAX,
 };
 
@@ -336,6 +337,10 @@  static __init void hmat_update_target(unsigned int tgt_pxm, unsigned int init_px
 		if (node_state(pxm_to_node(init_pxm), N_CPU))
 			hmat_update_target_access(target, type, value,
 						  NODE_ACCESS_CLASS_1);
+		/* Update access from generic port target */
+		if (*target->gen_port_device_handle)
+			hmat_update_target_access(target, type, value,
+						  NODE_ACCESS_CLASS_GENPORT_SINK);
 	}
 }