[AMD Official Use Only]
+Shaoyun
-----Original Message-----
From: Chen, JingWen <JingWen.Chen2@xxxxxxx>
Sent: Thursday, January 13, 2022 11:09 PM
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Liu, Monk <Monk.Liu@xxxxxxx>; Chen, Horace <Horace.Chen@xxxxxxx>; Skvortsov, Victor <Victor.Skvortsov@xxxxxxx>; Chen, JingWen <JingWen.Chen2@xxxxxxx>
Subject: [PATCH v3] drm/amd/amdgpu: fixing read wrong pf2vf data in SRIOV
[Why]
This fixes 35709bd76d229a51b0c571a768b741650ec47828.
we should read pf2vf data based at mman.fw_vram_usage_va after gmc sw_init. patch 35709bd76 breaks this logic.
[How]
calling amdgpu_virt_exchange_data in amdgpu_virt_init_data_exchange to set the right base in the right sequence.
v2:
call amdgpu_virt_init_data_exchange after gmc sw_init to make data exchange workqueue run
v3:
clean up the code logic
Signed-off-by: Jingwen Chen <Jingwen.Chen2@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 12 ++++--------
2 files changed, 5 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index da3348fa7b0e..5610eae8ef0c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2353,7 +2353,7 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
}
if (amdgpu_sriov_vf(adev))
- amdgpu_virt_exchange_data(adev);
+ amdgpu_virt_init_data_exchange(adev);
r = amdgpu_ib_pool_init(adev);
if (r) {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
index 894444ab0032..d83dfdc64d49 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
@@ -625,14 +625,16 @@ void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev)
adev->virt.fw_reserve.p_vf2pf = NULL;
adev->virt.vf2pf_update_interval_ms = 0;
- if (adev->bios != NULL) {
+ if (adev->mman.fw_vram_usage_va != NULL) {
adev->virt.vf2pf_update_interval_ms = 2000;
-
+ amdgpu_virt_exchange_data(adev);
+ } else if (adev->bios != NULL) {
adev->virt.fw_reserve.p_pf2vf =
(struct amd_sriov_msg_pf2vf_info_header *)
(adev->bios + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB << 10));
amdgpu_virt_read_pf2vf_data(adev);
+ return;
}
if (adev->virt.vf2pf_update_interval_ms != 0) { @@ -674,12 +676,6 @@ void amdgpu_virt_exchange_data(struct amdgpu_device *adev)
if (adev->virt.ras_init_done)
amdgpu_virt_add_bad_page(adev, bp_block_offset, bp_block_size);
}
- } else if (adev->bios != NULL) {
- adev->virt.fw_reserve.p_pf2vf =
- (struct amd_sriov_msg_pf2vf_info_header *)
- (adev->bios + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB << 10));
-
- amdgpu_virt_read_pf2vf_data(adev);
}
}
--
2.30.2
