drm/amdgpu: give warning before sleep in kiq_r/wreg
to catch error that may schedule in atomic context early on Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>hifive-unleashed-5.1
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59dd477286
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dccf1eff35
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@ -167,6 +167,9 @@ uint32_t amdgpu_virt_kiq_rreg(struct amdgpu_device *adev, uint32_t reg)
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if (r < 1 && (adev->in_gpu_reset || in_interrupt()))
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goto failed_kiq_read;
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if (in_interrupt())
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might_sleep();
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while (r < 1 && cnt++ < MAX_KIQ_REG_TRY) {
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msleep(MAX_KIQ_REG_BAILOUT_INTERVAL);
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r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT);
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@ -212,7 +215,11 @@ void amdgpu_virt_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v)
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if (r < 1 && (adev->in_gpu_reset || in_interrupt()))
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goto failed_kiq_write;
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if (in_interrupt())
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might_sleep();
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while (r < 1 && cnt++ < MAX_KIQ_REG_TRY) {
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msleep(MAX_KIQ_REG_BAILOUT_INTERVAL);
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r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT);
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}
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