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From 31e80a31227132bf2918e9df1fbafd84854bfbc2 Mon Sep 17 00:00:00 2001
From: Emily Deng <Emily.Deng@amd.com>
Date: Tue, 21 Aug 2018 18:51:38 +0800
Subject: [PATCH 5189/5725] drm/amdgpu/sriov: Only sriov runtime support use
kiq
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
For sriov, don't use kiq in exclusive mode, as don't know how long time
it will take, some times it will occur exclusive timeout.
Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 15 ++++++++-------
1 file changed, 8 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 ff9868a..4b54027 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -320,9 +320,6 @@ signed long amdgpu_kiq_reg_write_reg_wait(struct amdgpu_device *adev,
struct amdgpu_kiq *kiq = &adev->gfx.kiq;
struct amdgpu_ring *ring = &kiq->ring;
- if (!ring->ready)
- return -EINVAL;
-
spin_lock_irqsave(&kiq->ring_lock, flags);
amdgpu_ring_alloc(ring, 32);
@@ -389,10 +386,14 @@ static void gmc_v9_0_flush_gpu_tlb(struct amdgpu_device *adev,
struct amdgpu_vmhub *hub = &adev->vmhub[i];
u32 tmp = gmc_v9_0_get_invalidate_req(vmid);
- 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)
- continue;
+ if (adev->gfx.kiq.ring.ready &&
+ (amdgpu_sriov_runtime(adev) ||
+ !amdgpu_sriov_vf(adev))) {
+ 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)
+ continue;
+ }
spin_lock(&adev->gmc.invalidate_lock);
--
2.7.4
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