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drm/amdkfd: add an interface to query whether is KFD is active

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Add an interface to query whether KFD has any active queues.

v2: fix build issues

Acked-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2024-10-14 10:51:10 -04:00
parent ecfe9b2376
commit 8fe7cf58ff
3 changed files with 41 additions and 0 deletions
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9
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
View File

@ -890,6 +890,15 @@ int amdgpu_amdkfd_start_sched(struct amdgpu_device *adev, uint32_t node_id)
return kgd2kfd_start_sched(adev->kfd.dev, node_id);
}
/* check if there are KFD queues active */
bool amdgpu_amdkfd_compute_active(struct amdgpu_device *adev, uint32_t node_id)
{
if (!adev->kfd.init_complete)
return false;
return kgd2kfd_compute_active(adev->kfd.dev, node_id);
}
/* Config CGTT_SQ_CLK_CTRL */
int amdgpu_amdkfd_config_sq_perfmon(struct amdgpu_device *adev, uint32_t xcp_id,
bool core_override_enable, bool reg_override_enable, bool perfmon_override_enable)

7
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
View File

@ -268,6 +268,7 @@ int amdgpu_amdkfd_start_sched(struct amdgpu_device *adev, uint32_t node_id);
int amdgpu_amdkfd_stop_sched(struct amdgpu_device *adev, uint32_t node_id);
int amdgpu_amdkfd_config_sq_perfmon(struct amdgpu_device *adev, uint32_t xcp_id,
bool core_override_enable, bool reg_override_enable, bool perfmon_override_enable);
bool amdgpu_amdkfd_compute_active(struct amdgpu_device *adev, uint32_t node_id);
/* Read user wptr from a specified user address space with page fault
@ -431,6 +432,7 @@ int kgd2kfd_check_and_lock_kfd(void);
void kgd2kfd_unlock_kfd(void);
int kgd2kfd_start_sched(struct kfd_dev *kfd, uint32_t node_id);
int kgd2kfd_stop_sched(struct kfd_dev *kfd, uint32_t node_id);
bool kgd2kfd_compute_active(struct kfd_dev *kfd, uint32_t node_id);
#else
static inline int kgd2kfd_init(void)
{
@ -511,5 +513,10 @@ static inline int kgd2kfd_stop_sched(struct kfd_dev *kfd, uint32_t node_id)
{
return 0;
}
static inline bool kgd2kfd_compute_active(struct kfd_dev *kfd, uint32_t node_id)
{
return false;
}
#endif
#endif /* AMDGPU_AMDKFD_H_INCLUDED */

25
drivers/gpu/drm/amd/amdkfd/kfd_device.c
View File

@ -1392,6 +1392,13 @@ void kfd_dec_compute_active(struct kfd_node *node)
WARN_ONCE(count < 0, "Compute profile ref. count error");
}
static bool kfd_compute_active(struct kfd_node *node)
{
if (atomic_read(&node->kfd->compute_profile))
return true;
return false;
}
void kgd2kfd_smi_event_throttle(struct kfd_dev *kfd, uint64_t throttle_bitmask)
{
/*
@ -1485,6 +1492,24 @@ int kgd2kfd_stop_sched(struct kfd_dev *kfd, uint32_t node_id)
return node->dqm->ops.halt(node->dqm);
}
bool kgd2kfd_compute_active(struct kfd_dev *kfd, uint32_t node_id)
{
struct kfd_node *node;
if (!kfd->init_complete)
return false;
if (node_id >= kfd->num_nodes) {
dev_warn(kfd->adev->dev, "Invalid node ID: %u exceeds %u\n",
node_id, kfd->num_nodes - 1);
return false;
}
node = kfd->nodes[node_id];
return kfd_compute_active(node);
}
#if defined(CONFIG_DEBUG_FS)
/* This function will send a package to HIQ to hang the HWS