[PATCH] drm/amdgpu: use vm_update_mode=0 as default in sriov for gfx10.3 onwards

[Danijel Slivka]

Apply this rule to all newer asics in sriov case.
For asic with VF MMIO access protection avoid using CPU for VM table updates.
CPU pagetable updates have issues with HDP flush as VF MMIO access protection
blocks write to BIF_BX_DEV0_EPF0_VF0_HDP_MEM_COHERENCY_FLUSH_CNTL register
during sriov runtime.

Signed-off-by: Danijel Slivka <danijel.slivka at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 7 +++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c   | 6 ------
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 12dc71a6b5db..59ee902a1eaa 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -4072,6 +4072,13 @@ int amdgpu_device_init(struct amdgpu_device *adev,
 	/* Enable TMZ based on IP_VERSION */
 	amdgpu_gmc_tmz_set(adev);
 
+	if (amdgpu_sriov_vf(adev) &&
+		(amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(10, 3, 0)))
+		/* VF MMIO access (except mailbox range) from CPU
+		 * will be blocked during sriov runtime
+		 */
+		adev->virt.caps |= AMDGPU_VF_MMIO_ACCESS_PROTECT;
+
 	amdgpu_gmc_noretry_set(adev);
 	/* Need to get xgmi info early to decide the reset behavior*/
 	if (adev->gmc.xgmi.supported) {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
index aed60aaf1a55..6f01de220c44 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
@@ -724,12 +724,6 @@ void amdgpu_detect_virtualization(struct amdgpu_device *adev)
 			adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE;
 	}
 
-	if (amdgpu_sriov_vf(adev) && adev->asic_type == CHIP_SIENNA_CICHLID)
-		/* VF MMIO access (except mailbox range) from CPU
-		 * will be blocked during sriov runtime
-		 */
-		adev->virt.caps |= AMDGPU_VF_MMIO_ACCESS_PROTECT;
-
 	/* we have the ability to check now */
 	if (amdgpu_sriov_vf(adev)) {
 		switch (adev->asic_type) {
-- 
2.25.1