[PATCH 2/2] drm/amdkfd: flag per-sdma queue reset supported to user space

[Jonathan Kim]

Similar to compute queue reset, flag SDMA queue reset capabilities to
user space for safe testing.

Signed-off-by: Jonathan Kim <jonathan.kim at amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 5 +++++
 drivers/gpu/drm/amd/amdkfd/kfd_topology.h | 1 +
 include/uapi/linux/kfd_sysfs.h            | 3 +++
 3 files changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
index dbc5595e999a..27e7356eed6f 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
@@ -519,6 +519,8 @@ static ssize_t node_show(struct kobject *kobj, struct attribute *attr,
 				      dev->gpu->kfd->mec_fw_version);
 		sysfs_show_32bit_prop(buffer, offs, "capability",
 				      dev->node_props.capability);
+		sysfs_show_32bit_prop(buffer, offs, "capability2",
+				      dev->node_props.capability2);
 		sysfs_show_64bit_prop(buffer, offs, "debug_prop",
 				      dev->node_props.debug_prop);
 		sysfs_show_32bit_prop(buffer, offs, "sdma_fw_version",
@@ -1981,6 +1983,9 @@ static void kfd_topology_set_capabilities(struct kfd_topology_device *dev)
 	if (kfd_dbg_has_ttmps_always_setup(dev->gpu))
 		dev->node_props.debug_prop |= HSA_DBG_DISPATCH_INFO_ALWAYS_VALID;
 
+	if (dev->gpu->adev->sdma.supported_reset & AMDGPU_RESET_TYPE_PER_QUEUE)
+		dev->node_props.capability2 |= HSA_CAP2_PER_SDMA_QUEUE_RESET_SUPPORTED;
+
 	if (KFD_GC_VERSION(dev->gpu) < IP_VERSION(10, 0, 0)) {
 		if (KFD_GC_VERSION(dev->gpu) == IP_VERSION(9, 4, 3) ||
 		    KFD_GC_VERSION(dev->gpu) == IP_VERSION(9, 4, 4))
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.h b/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
index f06c9db7ddde..3de8ec0043bb 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
@@ -51,6 +51,7 @@ struct kfd_node_properties {
 	uint32_t cpu_core_id_base;
 	uint32_t simd_id_base;
 	uint32_t capability;
+	uint32_t capability2;
 	uint64_t debug_prop;
 	uint32_t max_waves_per_simd;
 	uint32_t lds_size_in_kb;
diff --git a/include/uapi/linux/kfd_sysfs.h b/include/uapi/linux/kfd_sysfs.h
index 859b8e91d4d3..1125fe47959f 100644
--- a/include/uapi/linux/kfd_sysfs.h
+++ b/include/uapi/linux/kfd_sysfs.h
@@ -63,6 +63,9 @@
 #define HSA_CAP_PER_QUEUE_RESET_SUPPORTED			0x80000000
 #define HSA_CAP_RESERVED					0x000f8000
 
+#define HSA_CAP2_PER_SDMA_QUEUE_RESET_SUPPORTED			0x00000001
+#define HSA_CAP2_RESERVED					0xfffffffe
+
 /* debug_prop bits in node properties */
 #define HSA_DBG_WATCH_ADDR_MASK_LO_BIT_MASK     0x0000000f
 #define HSA_DBG_WATCH_ADDR_MASK_LO_BIT_SHIFT    0
-- 
2.34.1