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| author |   Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com> | 2019-01-25 16:35:35 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-05-20 21:22:49 -0500 |
| commit | 43d8107f0bdcaa4300e40231cc45ecbd1f77f73f (patch) | |
| tree | cba2f6779b362fbf1e051d47a2354a1dec7702ff /drivers/gpu/drm/amd/amdkfd/kfd_device.c | |
| parent | drm/amdgpu: skip fw pri bo alloc for SRIOV (diff) | |
| download | linux-dev-43d8107f0bdcaa4300e40231cc45ecbd1f77f73f.tar.xz linux-dev-43d8107f0bdcaa4300e40231cc45ecbd1f77f73f.zip | |
drm/amdkfd: Fix compute profile switching
Fix compute profile switching on process termination.
Add a dedicated reference counter to keep track of entry/exit to/from
compute profile. This enables switching compute profiles for other
reasons than process creation or termination.
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Eric Huang <JinhuiEric.Huang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_device.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index 4dd8489144d0..765b58a17dc7 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -463,6 +463,7 @@ struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, kfd->pdev = pdev; kfd->init_complete = false; kfd->kfd2kgd = f2g; + atomic_set(&kfd->compute_profile, 0); mutex_init(&kfd->doorbell_mutex); memset(&kfd->doorbell_available_index, 0, @@ -1037,6 +1038,21 @@ void kgd2kfd_set_sram_ecc_flag(struct kfd_dev *kfd) atomic_inc(&kfd->sram_ecc_flag); } +void kfd_inc_compute_active(struct kfd_dev *kfd) +{ + if (atomic_inc_return(&kfd->compute_profile) == 1) + amdgpu_amdkfd_set_compute_idle(kfd->kgd, false); +} + +void kfd_dec_compute_active(struct kfd_dev *kfd) +{ + int count = atomic_dec_return(&kfd->compute_profile); + + if (count == 0) + amdgpu_amdkfd_set_compute_idle(kfd->kgd, true); + WARN_ONCE(count < 0, "Compute profile ref. count error"); +} + #if defined(CONFIG_DEBUG_FS) /* This function will send a package to HIQ to hang the HWS |