From 6471dede9832c363e4e49ccf30c96663065a868c Mon Sep 17 00:00:00 2001 From: Jingwen Chen Date: Thu, 13 Jan 2022 19:06:59 +0800 Subject: [PATCH] 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 v4: add some comment and make the code more readable Signed-off-by: Jingwen Chen Reviewed-by: Horace Chen (cherry picked from commit 93f337ae205b664edb2ab0514d9ba59ca7525abd) Change-Id: I0ccc60100e7e2d73c8d1ada8c2462fd7f968f188 --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 20 +++++++------------- 2 files changed, 8 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 87d06fdefd1c7..ec38517ab33f7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2423,7 +2423,7 @@ 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 e230a9a8342cf..de7493d035237 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -634,20 +634,20 @@ 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) { - adev->virt.vf2pf_update_interval_ms = 2000; + if (adev->mman.fw_vram_usage_va != NULL) { + /* go through this logic in ip_init and reset to init workqueue*/ + amdgpu_virt_exchange_data(adev); + INIT_DELAYED_WORK(&adev->virt.vf2pf_work, amdgpu_virt_update_vf2pf_work_item); + schedule_delayed_work(&(adev->virt.vf2pf_work), msecs_to_jiffies(adev->virt.vf2pf_update_interval_ms)); + } else if (adev->bios != NULL) { + /* got through this logic in early init stage to get necessary flags, e.g. rlcg_acc related*/ 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); } - - if (adev->virt.vf2pf_update_interval_ms != 0) { - INIT_DELAYED_WORK(&adev->virt.vf2pf_work, amdgpu_virt_update_vf2pf_work_item); - schedule_delayed_work(&(adev->virt.vf2pf_work), msecs_to_jiffies(adev->virt.vf2pf_update_interval_ms)); - } } @@ -683,12 +683,6 @@ 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); } }