[PATCH 11/13] drm/amdkfd: kfd expose the hive_id of the device through its node properties

[shaoyunl]

From: Shaoyun Liu <shaoyun....@amd.com>

Thunk will generate the XGMI topology information when necessary with the 
hive_id
for each specified device

Change-Id: I3bbc37bd2af4295e24357ce82f2c760162aff9ca
Signed-off-by: Shaoyun Liu <shaoyun....@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehl...@amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_device.c   | 3 +++
 drivers/gpu/drm/amd/amdkfd/kfd_priv.h     | 3 +++
 drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 4 ++++
 drivers/gpu/drm/amd/amdkfd/kfd_topology.h | 1 +
 4 files changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 1b04871..b4d9e6b 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -476,6 +476,9 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
                goto kfd_doorbell_error;
        }
 
+       if (kfd->kfd2kgd->get_hive_id)
+               kfd->hive_id = kfd->kfd2kgd->get_hive_id(kfd->kgd);
+
        if (kfd_topology_add_device(kfd)) {
                dev_err(kfd_device, "Error adding device to topology\n");
                goto kfd_topology_add_device_error;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h 
b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index 355f79d..6a5418f 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -254,6 +254,9 @@ struct kfd_dev {
        bool cwsr_enabled;
        const void *cwsr_isa;
        unsigned int cwsr_isa_size;
+
+       /* xGMI */
+       uint64_t hive_id;
 };
 
 /* KGD2KFD callbacks */
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
index bc95d4df..19ecc82 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
@@ -443,6 +443,8 @@ static ssize_t node_show(struct kobject *kobj, struct 
attribute *attr,
                        dev->node_props.location_id);
        sysfs_show_32bit_prop(buffer, "drm_render_minor",
                        dev->node_props.drm_render_minor);
+       sysfs_show_64bit_prop(buffer, "hive_id",
+                       dev->node_props.hive_id);
 
        if (dev->gpu) {
                log_max_watch_addr =
@@ -1219,6 +1221,8 @@ int kfd_topology_add_device(struct kfd_dev *gpu)
        dev->node_props.drm_render_minor =
                gpu->shared_resources.drm_render_minor;
 
+       dev->node_props.hive_id = gpu->hive_id;
+
        kfd_fill_mem_clk_max_info(dev);
        kfd_fill_iolink_non_crat_info(dev);
 
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.h 
b/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
index 7d9c3f9..92a19be 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
@@ -49,6 +49,7 @@
 #define HSA_CAP_AQL_QUEUE_DOUBLE_MAP           0x00004000
 
 struct kfd_node_properties {
+       uint64_t hive_id;
        uint32_t cpu_cores_count;
        uint32_t simd_count;
        uint32_t mem_banks_count;
-- 
2.7.4

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