Hi Philip,
Could you help to try whether the attachment patch could help with the issue encounter? If it is OK, then I will send this patch out to review.
Best wishes
Emily Deng
>-----Original Message-----
>From: Deng, Emily
>Sent: Monday, June 17, 2019 10:50 AM
>To: Yang, Philip <Philip.Yang@xxxxxxx>; Russell, Kent
><Kent.Russell@xxxxxxx>; Quan, Evan <Evan.Quan@xxxxxxx>; amd-
>gfx@xxxxxxxxxxxxxxxxxxxxx
>Subject: RE: [PATCH] drm/amdgpu: Need to set the baco cap before baco reset
>
>Hi Philip,
> Sorry for introduce this issue for you. From the code, I couldn't see any
>issue. And I have tested the code in my Vega10, it is OK. So I think this is the
>kfd specific issue, but I couldn't reproduce issue on my platform. Could you
>create an ticket, and assign to me, and share me your platform, so I could
>debug it and fix it today.
>
>Best wishes
>Emily Deng
>
>>-----Original Message-----
>>From: Yang, Philip <Philip.Yang@xxxxxxx>
>>Sent: Friday, June 14, 2019 10:16 PM
>>To: Deng, Emily <Emily.Deng@xxxxxxx>; Russell, Kent
>><Kent.Russell@xxxxxxx>; Quan, Evan <Evan.Quan@xxxxxxx>; amd-
>>gfx@xxxxxxxxxxxxxxxxxxxxx
>>Subject: Re: [PATCH] drm/amdgpu: Need to set the baco cap before baco
>>reset
>>
>>Hi Emily,
>>
>>I am not familiar with vbios and driver init part, just based on my
>>experience, the patch don't modify amdgpu_get_bios but move
>>amdgpu_get_bios to amdgpu_device_ip_early_init from amdgpu_device_init,
>>so amdgpu_get_bios is executed earlier. The kernel error message "BUG:
>>kernel NULL pointer dereference" means something is not initialized.
>>Please review the change. This issue blocks rocm release now.
>>
>>Regards,
>>Philip
>>
>>On 2019-06-13 11:19 p.m., Deng, Emily wrote:
>>> Hi Russell,
>>> This patch will read vbios, and parse vbios to get the baco
>>> reset feature
>>bit. From the call trace, it shows error in " amdgpu_get_bios ", but
>>this patch don't modify amdgpu_get_bios, and code before
>>amdgpu_get_bios. Please first check why it will has error when read vbios.
>>>
>>> Best wishes
>>> Emily Deng
>>>
>>>
>>>
>>>> -----Original Message-----
>>>> From: Russell, Kent <Kent.Russell@xxxxxxx>
>>>> Sent: Thursday, June 13, 2019 7:11 PM
>>>> To: Quan, Evan <Evan.Quan@xxxxxxx>; Deng, Emily
>><Emily.Deng@xxxxxxx>;
>>>> amd-gfx@xxxxxxxxxxxxxxxxxxxxx
>>>> Cc: Deng, Emily <Emily.Deng@xxxxxxx>
>>>> Subject: RE: [PATCH] drm/amdgpu: Need to set the baco cap before
>>>> baco reset
>>>>
>>>> Hi Emily,
>>>>
>>>> This patch caused a regression on MI25 (Chip 6860, VBIOS
>>>> 113-D0513700-001) machines where the driver would not boot. Note
>>>> that this was not seen on
>>>> Vega10 Frontier (Chip 6863, VBIOS 113-D0501100-X09) or Radeon64
>>>> (Chip 697f). Reverting this patch resolved the issue with no other
>>>> work required and was confirmed on all 3 machines.
>>>>
>>>> Here is the dmesg:
>>>>
>>>> [ 3.908653] amdgpu 0000:23:00.0: BAR 6: can't assign [??? 0x00000000
>>flags
>>>> 0x20000000] (bogus alignment)
>>>> [ 3.908692] BUG: kernel NULL pointer dereference, address:
>>>> 0000000000000008
>>>> [ 3.908716] #PF: supervisor read access in kernel mode
>>>> [ 3.908734] #PF: error_code(0x0000) - not-present page
>>>> [ 3.908753] PGD 0 P4D 0
>>>> [ 3.908767] Oops: 0000 [#1] SMP NOPTI
>>>> [ 3.909293] CPU: 8 PID: 409 Comm: kworker/8:1 Not tainted 5.2.0-rc1-
>kfd-
>>>> compute-roc-master-10734 #1
>>>> [ 3.909753] Hardware name: Inventec P47
>>WC2071019001
>>>> /P47 , BIOS 0.64 04/09/2018
>>>> [ 3.910534] Workqueue: events work_for_cpu_fn
>>>> [ 3.910953] RIP: 0010:amdgpu_get_bios+0x3aa/0x580 [amdgpu]
>>>> [ 3.911314] Code: c0 48 c7 44 24 5c 00 00 00 00 48 c7 84 24 90 00 00 00
>00
>>00
>>>> 00 00 48 89 d9 48 29 f9 83 c1 3c c1 e9 03 f3 48 ab 49 8b 44 24 38
>>>> <48> 8b 40 08
>>>> 48 85 c0 74 24 ba 3c 00 00 00 48 89 de 4c 89 e7 ff d0
>>>> [ 3.912069] RSP: 0018:ffffa27dce28fc50 EFLAGS: 00010212
>>>> [ 3.912502] RAX: 0000000000000000 RBX: ffffa27dce28fcac RCX:
>>>> 0000000000000000
>>>> [ 3.912980] RDX: 0000000000000000 RSI: 0000000000000082 RDI:
>>>> ffffa27dce28fce8
>>>> [ 3.913467] RBP: 0000000000000000 R08: 0000000000000001 R09:
>>>> 000000000000079a
>>>> [ 3.913940] R10: 0000000000000000 R11: 0000000000000001 R12:
>>>> ffff88d657af0000
>>>> [ 3.914349] R13: ffffffffc0c38120 R14: ffffa27dce28fc68 R15:
>>>> ffff88d657af0000
>>>> [ 3.914767] FS: 0000000000000000(0000) GS:ffff88d65f400000(0000)
>>>> knlGS:0000000000000000
>>>> [ 3.915203] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>>> [ 3.915637] CR2: 0000000000000008 CR3: 0000003e7540a000 CR4:
>>>> 00000000003406e0
>>>> [ 3.916075] Call Trace:
>>>> [ 3.916522] ? pcie_capability_clear_and_set_word+0x53/0x80
>>>> [ 3.917014] amdgpu_device_init+0x923/0x1820 [amdgpu]
>>>> [ 3.917515] amdgpu_driver_load_kms+0x71/0x310 [amdgpu]
>>>> [ 3.917997] drm_dev_register+0x113/0x1a0 [drm]
>>>> [ 3.918514] amdgpu_pci_probe+0xb8/0x150 [amdgpu]
>>>> [ 3.919003] ? __pm_runtime_resume+0x54/0x70
>>>> [ 3.919270] usb 1-2: New USB device found, idVendor=14dd,
>>idProduct=1005,
>>>> bcdDevice= 0.00
>>>> [ 3.919498] local_pci_probe+0x3d/0x90
>>>> [ 3.919503] ? __schedule+0x3de/0x690
>>>> [ 3.920374] usb 1-2: New USB device strings: Mfr=1, Product=2,
>>>> SerialNumber=3
>>>> [ 3.921137] work_for_cpu_fn+0x10/0x20
>>>> [ 3.922028] usb 1-2: Product: D2CIM-VUSB
>>>> [ 3.922815] process_one_work+0x159/0x3e0
>>>> [ 3.923633] usb 1-2: Manufacturer: Raritan
>>>> [ 3.923635] usb 1-2: SerialNumber: EFFB212D0A6E32F
>>>> [ 3.924416] worker_thread+0x22b/0x440
>>>> [ 3.924419] ? rescuer_thread+0x350/0x350
>>>> [ 3.927812] kthread+0xf6/0x130
>>>> [ 3.928157] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
>>>> [ 3.928365] ? kthread_destroy_worker+0x40/0x40
>>>> [ 3.929401] ata1.00: ATA-10: INTEL SSDSC2KG960G7, SCV10100, max
>>>> UDMA/133
>>>> [ 3.930101] ret_from_fork+0x1f/0x30
>>>> [ 3.930103] Modules linked in: amdgpu(+) crct10dif_pclmul crc32_pclmul
>>>> ghash_clmulni_intel ast amd_iommu_v2 aesni_intel gpu_sched
>>>> i2c_algo_bit
>>>> aes_x86_64 ttm crypto_simd drm_kms_helper cryptd glue_helper
>>>> syscopyarea sysfillrect ahci sysimgblt libahci fb_sys_fops ixgbe(+)
>>>> drm dca mdio
>>>> [ 3.930965] ata1.00: 1875385008 sectors, multi 1: LBA48 NCQ (depth 32)
>>>> [ 3.931085] ata1.00: configured for UDMA/133
>>>> [ 3.931809] CR2: 0000000000000008
>>>> [ 3.934723] scsi 0:0:0:0: Direct-Access ATA INTEL SSDSC2KG96 0100
>>PQ:
>>>> 0 ANSI: 5
>>>>
>>>>
>>>> Thanks!
>>>>
>>>> Kent
>>>>
>>>> -----Original Message-----
>>>> From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of
>>>> Quan, Evan
>>>> Sent: Monday, May 27, 2019 9:17 PM
>>>> To: Deng, Emily <Emily.Deng@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
>>>> Cc: Deng, Emily <Emily.Deng@xxxxxxx>
>>>> Subject: RE: [PATCH] drm/amdgpu: Need to set the baco cap before
>>>> baco reset
>>>>
>>>> Reviewed-by: Evan Quan <evan.quan@xxxxxxx>
>>>>
>>>>> -----Original Message-----
>>>>> From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of
>>>>> Emily Deng
>>>>> Sent: Monday, May 27, 2019 3:43 PM
>>>>> To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
>>>>> Cc: Deng, Emily <Emily.Deng@xxxxxxx>
>>>>> Subject: [PATCH] drm/amdgpu: Need to set the baco cap before baco
>>>>> reset
>>>>>
>>>>> For passthrough, after rebooted the VM, driver will do a baco reset
>>>>> before doing other driver initialization during loading driver.
>>>>> For doing the baco reset, it will first check the baco reset capability.
>>>>> So first need to set the cap from the vbios information or baco
>>>>> reset won't
>>>> be enabled.
>>>>>
>>>>> Signed-off-by: Emily Deng <Emily.Deng@xxxxxxx>
>>>>> ---
>>>>> drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 24
>++++++++++--
>>---
>>>>> -------
>>>>> drivers/gpu/drm/amd/amdgpu/soc15.c | 3 ++-
>>>>> drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c | 4 ++++
>>>>> .../amd/powerplay/hwmgr/vega10_processpptables.c | 24
>>>>> ++++++++++++++++++++++
>>>>> .../amd/powerplay/hwmgr/vega10_processpptables.h | 1 +
>>>>> 5 files changed, 42 insertions(+), 14 deletions(-)
>>>>>
>>>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>>>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>>>>> index b6ded84..7a8c220 100644
>>>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>>>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>>>>> @@ -1541,6 +1541,17 @@ static int
>>>>> amdgpu_device_ip_early_init(struct
>>>>> amdgpu_device *adev)
>>>>> if (amdgpu_sriov_vf(adev))
>>>>> adev->pm.pp_feature &= ~PP_GFXOFF_MASK;
>>>>>
>>>>> + /* Read BIOS */
>>>>> + if (!amdgpu_get_bios(adev))
>>>>> + return -EINVAL;
>>>>> +
>>>>> + r = amdgpu_atombios_init(adev);
>>>>> + if (r) {
>>>>> + dev_err(adev->dev, "amdgpu_atombios_init failed\n");
>>>>> + amdgpu_vf_error_put(adev,
>>>>> AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL, 0, 0);
>>>>> + return r;
>>>>> + }
>>>>> +
>>>>> for (i = 0; i < adev->num_ip_blocks; i++) {
>>>>> if ((amdgpu_ip_block_mask & (1 << i)) == 0) {
>>>>> DRM_ERROR("disabled ip block: %d <%s>\n", @@ -
>>>>> 2591,19 +2602,6 @@ int amdgpu_device_init(struct amdgpu_device
>>*adev,
>>>>> goto fence_driver_init;
>>>>> }
>>>>>
>>>>> - /* Read BIOS */
>>>>> - if (!amdgpu_get_bios(adev)) {
>>>>> - r = -EINVAL;
>>>>> - goto failed;
>>>>> - }
>>>>> -
>>>>> - r = amdgpu_atombios_init(adev);
>>>>> - if (r) {
>>>>> - dev_err(adev->dev, "amdgpu_atombios_init failed\n");
>>>>> - amdgpu_vf_error_put(adev,
>>>>> AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL, 0, 0);
>>>>> - goto failed;
>>>>> - }
>>>>> -
>>>>> /* detect if we are with an SRIOV vbios */
>>>>> amdgpu_device_detect_sriov_bios(adev);
>>>>>
>>>>> diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c
>>>>> b/drivers/gpu/drm/amd/amdgpu/soc15.c
>>>>> index 78bd4fc..d9fdd95 100644
>>>>> --- a/drivers/gpu/drm/amd/amdgpu/soc15.c
>>>>> +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
>>>>> @@ -764,7 +764,8 @@ static bool soc15_need_reset_on_init(struct
>>>>> amdgpu_device *adev)
>>>>> /* Just return false for soc15 GPUs. Reset does not seem to
>>>>> * be necessary.
>>>>> */
>>>>> - return false;
>>>>> + if (!amdgpu_passthrough(adev))
>>>>> + return false;
>>>>>
>>>>> if (adev->flags & AMD_IS_APU)
>>>>> return false;
>>>>> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
>>>>> b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
>>>>> index ce6aeb5..1d9bb29 100644
>>>>> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
>>>>> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
>>>>> @@ -5311,8 +5311,12 @@ static const struct pp_hwmgr_func
>>>>> vega10_hwmgr_funcs = {
>>>>>
>>>>> int vega10_hwmgr_init(struct pp_hwmgr *hwmgr) {
>>>>> + struct amdgpu_device *adev = hwmgr->adev;
>>>>> +
>>>>> hwmgr->hwmgr_func = &vega10_hwmgr_funcs;
>>>>> hwmgr->pptable_func = &vega10_pptable_funcs;
>>>>> + if (amdgpu_passthrough(adev))
>>>>> + return vega10_baco_set_cap(hwmgr);
>>>>>
>>>>> return 0;
>>>>> }
>>>>> diff --git
>>>>> a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.c
>>>>> b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.c
>>>>> index b6767d7..83d22cd 100644
>>>>> ---
>a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.c
>>>>> +++
>>b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.c
>>>>> @@ -1371,3 +1371,27 @@ int vega10_get_powerplay_table_entry(struct
>>>>> pp_hwmgr *hwmgr,
>>>>>
>>>>> return result;
>>>>> }
>>>>> +
>>>>> +int vega10_baco_set_cap(struct pp_hwmgr *hwmgr) {
>>>>> + int result = 0;
>>>>> +
>>>>> + const ATOM_Vega10_POWERPLAYTABLE *powerplay_table;
>>>>> +
>>>>> + powerplay_table = get_powerplay_table(hwmgr);
>>>>> +
>>>>> + PP_ASSERT_WITH_CODE((powerplay_table != NULL),
>>>>> + "Missing PowerPlay Table!", return -1);
>>>>> +
>>>>> + result = check_powerplay_tables(hwmgr, powerplay_table);
>>>>> +
>>>>> + PP_ASSERT_WITH_CODE((result == 0),
>>>>> + "check_powerplay_tables failed", return result);
>>>>> +
>>>>> + set_hw_cap(
>>>>> + hwmgr,
>>>>> + 0 != (le32_to_cpu(powerplay_table->ulPlatformCaps)
>>>>> & ATOM_VEGA10_PP_PLATFORM_CAP_BACO),
>>>>> + PHM_PlatformCaps_BACO);
>>>>> + return result;
>>>>> +}
>>>>> +
>>>>> diff --git
>>>>> a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.h
>>>>> b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.h
>>>>> index d83ed2a..da5fbec 100644
>>>>> ---
>>a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.h
>>>>> +++
>>b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.h
>>>>> @@ -59,4 +59,5 @@ extern int
>>>>> vega10_get_number_of_powerplay_table_entries(struct pp_hwmgr
>>>> *hwmgr);
>>>>> extern int vega10_get_powerplay_table_entry(struct pp_hwmgr *hwmgr,
>>>>> uint32_t entry_index,
>>>>> struct pp_power_state *power_state, int
>>>> (*call_back_func)(struct
>>>>> pp_hwmgr *, void *,
>>>>> struct pp_power_state *, void *, uint32_t));
>>>>> +extern int vega10_baco_set_cap(struct pp_hwmgr *hwmgr);
>>>>> #endif
>>>>> --
>>>>> 2.7.4
>>>>>
>>>>> _______________________________________________
>>>>> amd-gfx mailing list
>>>>> amd-gfx@xxxxxxxxxxxxxxxxxxxxx
>>>>> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
>>>> _______________________________________________
>>>> amd-gfx mailing list
>>>> amd-gfx@xxxxxxxxxxxxxxxxxxxxx
>>>> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
>>> _______________________________________________
>>> amd-gfx mailing list
>>> amd-gfx@xxxxxxxxxxxxxxxxxxxxx
>>> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
>>>
Attachment:
0001-drm-amdgpu-Fix-the-null-pointer-about-get-vbios.patch
Description: 0001-drm-amdgpu-Fix-the-null-pointer-about-get-vbios.patch
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