[PATCH] drm/amd/pm: Fix output of pp_od_clk_voltage
Quan, Evan
Evan.Quan at amd.com
Fri May 19 01:42:38 UTC 2023
[AMD Official Use Only - General]
Sorry for missing this.
The patch seems fine to me. Reviewed-by: Evan Quan <evan.quan at amd.com>
Evan
> -----Original Message-----
> From: Jonatas Esteves <jntesteves at gmail.com>
> Sent: Tuesday, November 15, 2022 10:33 PM
> To: Quan, Evan <Evan.Quan at amd.com>; amd-gfx at lists.freedesktop.org
> Subject: RE: [PATCH] drm/amd/pm: Fix output of pp_od_clk_voltage
>
> >
> > [AMD Official Use Only - General]
> >
> >
> >
> > > -----Original Message-----
> > > From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of
> > > Jonatas Esteves
> > > Sent: Tuesday, November 15, 2022 7:13 AM
> > > To: amd-gfx at lists.freedesktop.org
> > > Cc: Jonatas Esteves <jntesteves at gmail.com>
> > > Subject: [PATCH] drm/amd/pm: Fix output of pp_od_clk_voltage
> > >
> > > Printing the other clock types should not be conditioned on being
> > > able to print OD_SCLK. Some GPUs currently have limited capability
> > > of only printing a subset of these.
> > >
> > > Since this condition was introduced in v5.18-rc1, reading from
> > > `pp_od_clk_voltage` has been returning empty on the Asus ROG Strix
> > > G15 (2021).
> > What's the output then with this patch applied?
> ```
> $ cat /sys/class/drm/card1/device/pp_od_clk_voltage
> OD_VDDGFX_OFFSET:
> 0mV
> OD_RANGE:
> ```
>
> Changing OD_VDDGFX_OFFSET works for this chip. Changing GFXCLK_LIMITS
> and UCLK_LIMITS is not supported as per the checks in sienna_cichlid_ppt.c ->
> sienna_cichlid_od_edit_dpm_table()
>
> > Meanwhile can you show me the 'lspci' output( I wonder which asic is used
> on your system)?
> The ASIC is a RX 6800M / NAVI22 / Navy Flounder / IP_VERSION(11, 0, 11)
>
> ```
> $ lspci
> 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne
> Root Complex
> 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne
> IOMMU
> 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy
> Host Bridge
> 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP
> Bridge
> 00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy
> Host Bridge
> 00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe
> GPP Bridge
> 00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe
> GPP Bridge
> 00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe
> GPP Bridge
> 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy
> Host Bridge
> 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe
> GPP Bridge to Bus
> 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller
> (rev 51)
> 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev
> 51)
> 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data
> Fabric; Function 0
> 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data
> Fabric; Function 1
> 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data
> Fabric; Function 2
> 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data
> Fabric; Function 3
> 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data
> Fabric; Function 4
> 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data
> Fabric; Function 5
> 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data
> Fabric; Function 6
> 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data
> Fabric; Function 7
> 01:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 XL
> Upstream Port of PCI Express Switch (rev c3)
> 02:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 XL
> Downstream Port of PCI Express Switch
> 03:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Navi 22
> [Radeon RX 6700/6700 XT/6750 XT / 6800M] (rev c3)
> 03:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Navi
> 21/23 HDMI/DP Audio Controller
> 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
> 05:00.0 Network controller: MEDIATEK Corp. MT7921 802.11ax PCI Express
> Wireless Network Adapter
> 06:00.0 Non-Volatile memory controller: Intel Corporation Device f1aa (rev
> 03)
> 07:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> [AMD/ATI] Cezanne [Radeon Vega Series / Radeon Vega Mobile Series] (rev c4)
> 07:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Renoir Radeon
> High Definition Audio Controller
> 07:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family
> 17h (Models 10h-1fh) Platform Security Processor
> 07:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne
> USB 3.1
> 07:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne
> USB 3.1
> 07:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD]
> ACP/ACP3X/ACP6x Audio Coprocessor (rev 01)
> 07:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h
> HD Audio Controller ```
>
> Here are some SMU initialization logs I think might also be important:
> ```
> [ 970.119696] amdgpu 0000:03:00.0: amdgpu: SMU is resuming...
> [ 970.119701] amdgpu 0000:03:00.0: amdgpu: smu driver if version =
> 0x0000000e, smu fw if version = 0x00000012, smu fw program = 0, version =
> 0x00413700 (65.55.0) [ 970.119704] amdgpu 0000:03:00.0: amdgpu: SMU
> driver if version not matched [ 970.119751] amdgpu 0000:03:00.0: amdgpu:
> use vbios provided pptable [ 970.183486] amdgpu 0000:03:00.0: amdgpu:
> SMU is resumed successfully!
> ```
>
> Thanks for your attention on this.
> Jonatas
> >
> > BR
> > Evan
> > >
> > > Fixes: 79c65f3fcbb1 ("drm/amd/pm: do not expose power
> implementation
> > > details to amdgpu_pm.c")
> > > ---
> > > drivers/gpu/drm/amd/pm/amdgpu_pm.c | 12 +++++-------
> > > 1 file changed, 5 insertions(+), 7 deletions(-)
> > >
> > > diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
> > > b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
> > > index 236657eece47..9d364bbc78e1 100644
> > > --- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
> > > +++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
> > > @@ -869,13 +869,11 @@ static ssize_t
> > > amdgpu_get_pp_od_clk_voltage(struct device *dev,
> > > }
> > > if (ret == -ENOENT) {
> > > size = amdgpu_dpm_print_clock_levels(adev, OD_SCLK, buf);
> > > - if (size > 0) {
> > > - size += amdgpu_dpm_print_clock_levels(adev,
> > > OD_MCLK, buf + size);
> > > - size += amdgpu_dpm_print_clock_levels(adev,
> > > OD_VDDC_CURVE, buf + size);
> > > - size += amdgpu_dpm_print_clock_levels(adev,
> > > OD_VDDGFX_OFFSET, buf + size);
> > > - size += amdgpu_dpm_print_clock_levels(adev,
> > > OD_RANGE, buf + size);
> > > - size += amdgpu_dpm_print_clock_levels(adev,
> > > OD_CCLK, buf + size);
> > > - }
> > > + size += amdgpu_dpm_print_clock_levels(adev, OD_MCLK,
> > > buf + size);
> > > + size += amdgpu_dpm_print_clock_levels(adev,
> > > OD_VDDC_CURVE, buf + size);
> > > + size += amdgpu_dpm_print_clock_levels(adev,
> > > OD_VDDGFX_OFFSET, buf + size);
> > > + size += amdgpu_dpm_print_clock_levels(adev, OD_RANGE,
> > > buf + size);
> > > + size += amdgpu_dpm_print_clock_levels(adev, OD_CCLK,
> > > buf + size);
> > > }
> > >
> > > if (size == 0)
> > > --
> > > 2.30.2
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