[PATCH 2/3] drm/amdgpu: Don't use kiq in interrupt

[Emily Deng]

Don't use kiq interrupt, as it might sleep.

Signed-off-by: Emily Deng <Emily.Deng at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index fcdbacb..f49f5f3 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -331,12 +331,6 @@ signed long  amdgpu_kiq_reg_write_reg_wait(struct amdgpu_device *adev,
 
 	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);
@@ -381,7 +375,8 @@ static void gmc_v9_0_flush_gpu_tlb(struct amdgpu_device *adev,
 
 		if (adev->gfx.kiq.ring.ready &&
 		    (amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev)) &&
-		    !adev->in_gpu_reset) {
+		    !adev->in_gpu_reset &&
+		    !in_interrupt()) {
 			r = amdgpu_kiq_reg_write_reg_wait(adev, hub->vm_inv_eng0_req + eng,
 				hub->vm_inv_eng0_ack + eng, tmp, 1 << vmid);
 			if (!r)
-- 
2.7.4