diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index 103033f96f13..adc813cde8e2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -45,98 +45,6 @@ void amdgpu_virt_init_setting(struct amdgpu_device *adev) adev->pg_flags = 0; } -uint32_t amdgpu_virt_kiq_rreg(struct amdgpu_device *adev, uint32_t reg) -{ - signed long r, cnt = 0; - unsigned long flags; - uint32_t seq; - struct amdgpu_kiq *kiq = &adev->gfx.kiq; - struct amdgpu_ring *ring = &kiq->ring; - - BUG_ON(!ring->funcs->emit_rreg); - - spin_lock_irqsave(&kiq->ring_lock, flags); - amdgpu_ring_alloc(ring, 32); - amdgpu_ring_emit_rreg(ring, reg); - amdgpu_fence_emit_polling(ring, &seq); - 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 gpu reset case because this way may - * block gpu_recover() routine forever, e.g. this virt_kiq_rreg - * is triggered in TTM and ttm_bo_lock_delayed_workqueue() will - * never return if we keep waiting in virt_kiq_rreg, which cause - * gpu_recover() hang there. - * - * also don't wait anymore for IRQ context - * */ - if (r < 1 && (adev->in_gpu_reset || in_interrupt())) - goto failed_kiq_read; - - 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_read; - - return adev->wb.wb[adev->virt.reg_val_offs]; - -failed_kiq_read: - pr_err("failed to read reg:%x\n", reg); - return ~0; -} - -void amdgpu_virt_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v) -{ - signed long r, cnt = 0; - unsigned long flags; - uint32_t seq; - struct amdgpu_kiq *kiq = &adev->gfx.kiq; - struct amdgpu_ring *ring = &kiq->ring; - - BUG_ON(!ring->funcs->emit_wreg); - - spin_lock_irqsave(&kiq->ring_lock, flags); - amdgpu_ring_alloc(ring, 32); - amdgpu_ring_emit_wreg(ring, reg, v); - amdgpu_fence_emit_polling(ring, &seq); - 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 gpu reset case because this way may - * block gpu_recover() routine forever, e.g. this virt_kiq_rreg - * is triggered in TTM and ttm_bo_lock_delayed_workqueue() will - * never return if we keep waiting in virt_kiq_rreg, which cause - * gpu_recover() hang there. - * - * also don't wait anymore for IRQ context - * */ - if (r < 1 && (adev->in_gpu_reset || in_interrupt())) - goto failed_kiq_write; - - 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_write; - - return; - -failed_kiq_write: - pr_err("failed to write reg:%x\n", reg); -} - void amdgpu_virt_kiq_reg_write_reg_wait(struct amdgpu_device *adev, uint32_t reg0, uint32_t reg1, uint32_t ref, uint32_t mask) |