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| author | Alex Deucher <alexander.deucher@amd.com> | 2023-12-14 12:18:45 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-01-15 18:35:36 -0500 |
| commit | 26405ff4306a7be83a551d65b801998ae926f276 (patch) | |
| tree | 7c5eb0615684ee5055d8e2420ed84714efca83f9 /drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | |
| parent | d3f452f3a01e748cc6e569df6275e95b0efdb01f (diff) | |
| download | lwn-26405ff4306a7be83a551d65b801998ae926f276.tar.gz lwn-26405ff4306a7be83a551d65b801998ae926f276.zip | |
drm/amdgpu: move kiq_reg_write_reg_wait() out of amdgpu_virt.c
It's used for more than just SR-IOV now, so move it to
amdgpu_gmc.c and rename it to better match the functionality and
update the comments in the code paths to better document
when each path is used and why. No functional change.
Reviewed-by: Shaoyun.liu <Shaoyun.liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Shaoyun.Liu@amd.com
Cc: Christian.Koenig@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index 0dcff2889e25..f5c66e0038b5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -71,59 +71,6 @@ void amdgpu_virt_init_setting(struct amdgpu_device *adev) amdgpu_num_kcq = 2; } -void amdgpu_virt_kiq_reg_write_reg_wait(struct amdgpu_device *adev, - uint32_t reg0, uint32_t reg1, - uint32_t ref, uint32_t mask, - uint32_t xcc_inst) -{ - struct amdgpu_kiq *kiq = &adev->gfx.kiq[xcc_inst]; - struct amdgpu_ring *ring = &kiq->ring; - signed long r, cnt = 0; - unsigned long flags; - uint32_t seq; - - if (adev->mes.ring.sched.ready) { - amdgpu_mes_reg_write_reg_wait(adev, reg0, reg1, - ref, mask); - return; - } - - spin_lock_irqsave(&kiq->ring_lock, flags); - amdgpu_ring_alloc(ring, 32); - amdgpu_ring_emit_reg_write_reg_wait(ring, reg0, reg1, - ref, mask); - r = amdgpu_fence_emit_polling(ring, &seq, MAX_KIQ_REG_WAIT); - if (r) - goto failed_undo; - - amdgpu_ring_commit(ring); - spin_unlock_irqrestore(&kiq->ring_lock, flags); - - r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT); - - /* don't wait anymore for IRQ context */ - if (r < 1 && in_interrupt()) - goto failed_kiq; - - might_sleep(); - while (r < 1 && cnt++ < MAX_KIQ_REG_TRY) { - - msleep(MAX_KIQ_REG_BAILOUT_INTERVAL); - r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT); - } - - if (cnt > MAX_KIQ_REG_TRY) - goto failed_kiq; - - return; - -failed_undo: - amdgpu_ring_undo(ring); - spin_unlock_irqrestore(&kiq->ring_lock, flags); -failed_kiq: - dev_err(adev->dev, "failed to write reg %x wait reg %x\n", reg0, reg1); -} - /** * amdgpu_virt_request_full_gpu() - request full gpu access * @adev: amdgpu device. |