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drm/amdgpu: prepare map process for multi-process debug devices

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Unlike single process debug devices, multi-process debug devices allow
debug mode setting per-VMID (non-device-global).

Because the HWS manages PASID-VMID mapping, the new MAP_PROCESS API allows
the KFD to forward the required SPI debug register write requests.

To request a new debug mode setting change, the KFD must be able to
preempt all queues then remap all queues with these new setting
requests for MAP_PROCESS to take effect.

Note that by default, trap enablement in non-debug mode must be disabled
for performance reasons for multi-process debug devices due to setup
overhead in FW.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jonathan Kim
2022-04-04 13:38:11 -04:00
committed by Alex Deucher
parent 97ae3c8cce
commit 0de4ec9a03
6 changed files with 87 additions and 0 deletions
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3
drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
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@@ -290,6 +290,9 @@ int reserve_debug_trap_vmid(struct device_queue_manager *dqm,
struct qcm_process_device *qpd);
int release_debug_trap_vmid(struct device_queue_manager *dqm,
struct qcm_process_device *qpd);
int debug_lock_and_unmap(struct device_queue_manager *dqm);
int debug_map_and_unlock(struct device_queue_manager *dqm);
int debug_refresh_runlist(struct device_queue_manager *dqm);
static inline unsigned int get_sh_mem_bases_32(struct kfd_process_device *pdd)
{