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[PATCH V2] mmc: sdhci-pci-gli: GL975[05]: Mask the replay timer timeout of AER

Victor Shih posted 1 patch 2 years, 2 months ago
There is a newer version of this series
drivers/mmc/host/sdhci-pci-gli.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
[PATCH V2] mmc: sdhci-pci-gli: GL975[05]: Mask the replay timer timeout of AER
Posted by Victor Shih 2 years, 2 months ago 
From: Victor Shih <victor.shih@genesyslogic.com.tw>

Due to a flaw in the hardware design, the GL975x replay timer frequently
times out when ASPM is enabled. As a result, the warning messages that will
often appear in the system log when the system accesses the GL975x
PCI config. Therefore, the replay timer timeout must be masked.

Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw>
---

Updates in V2:
 - Modify the commit message.

---

 drivers/mmc/host/sdhci-pci-gli.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c
index d83261e857a5..d8a991b349a8 100644
--- a/drivers/mmc/host/sdhci-pci-gli.c
+++ b/drivers/mmc/host/sdhci-pci-gli.c
@@ -28,6 +28,9 @@
 #define PCI_GLI_9750_PM_CTRL	0xFC
 #define   PCI_GLI_9750_PM_STATE	  GENMASK(1, 0)
 
+#define PCI_GLI_9750_CORRERR_MASK				0x214
+#define   PCI_GLI_9750_CORRERR_MASK_REPLAY_TIMER_TIMEOUT	  BIT(12)
+
 #define SDHCI_GLI_9750_CFG2          0x848
 #define   SDHCI_GLI_9750_CFG2_L1DLY    GENMASK(28, 24)
 #define   GLI_9750_CFG2_L1DLY_VALUE    0x1F
@@ -152,6 +155,9 @@
 #define PCI_GLI_9755_PM_CTRL     0xFC
 #define   PCI_GLI_9755_PM_STATE    GENMASK(1, 0)
 
+#define PCI_GLI_9755_CORRERR_MASK				0x214
+#define   PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT	  BIT(12)
+
 #define SDHCI_GLI_9767_GM_BURST_SIZE			0x510
 #define   SDHCI_GLI_9767_GM_BURST_SIZE_AXI_ALWAYS_SET	  BIT(8)
 
@@ -561,6 +567,11 @@ static void gl9750_hw_setting(struct sdhci_host *host)
 	value &= ~PCI_GLI_9750_PM_STATE;
 	pci_write_config_dword(pdev, PCI_GLI_9750_PM_CTRL, value);
 
+	/* mask the replay timer timeout of AER */
+	pci_read_config_dword(pdev, PCI_GLI_9750_CORRERR_MASK, &value);
+	value |= PCI_GLI_9750_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
+	pci_write_config_dword(pdev, PCI_GLI_9750_CORRERR_MASK, value);
+
 	gl9750_wt_off(host);
 }
 
@@ -770,6 +781,11 @@ static void gl9755_hw_setting(struct sdhci_pci_slot *slot)
 	value &= ~PCI_GLI_9755_PM_STATE;
 	pci_write_config_dword(pdev, PCI_GLI_9755_PM_CTRL, value);
 
+	/* mask the replay timer timeout of AER */
+	pci_read_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, &value);
+	value |= PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
+	pci_write_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, value);
+
 	gl9755_wt_off(pdev);
 }
 
-- 
2.25.1
Re: [PATCH V2] mmc: sdhci-pci-gli: GL975[05]: Mask the replay timer timeout of AER
Posted by Adrian Hunter 2 years, 1 month ago 
On 18/10/23 13:33, Victor Shih wrote:
> From: Victor Shih <victor.shih@genesyslogic.com.tw>
> 
> Due to a flaw in the hardware design, the GL975x replay timer frequently
> times out when ASPM is enabled. As a result, the warning messages that will
> often appear in the system log when the system accesses the GL975x
> PCI config. Therefore, the replay timer timeout must be masked.
> 
> Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw>

Acked-by: Adrian Hunter <adrian.hunter@intel.com>

> ---
> 
> Updates in V2:
>  - Modify the commit message.
> 
> ---
> 
>  drivers/mmc/host/sdhci-pci-gli.c | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c
> index d83261e857a5..d8a991b349a8 100644
> --- a/drivers/mmc/host/sdhci-pci-gli.c
> +++ b/drivers/mmc/host/sdhci-pci-gli.c
> @@ -28,6 +28,9 @@
>  #define PCI_GLI_9750_PM_CTRL	0xFC
>  #define   PCI_GLI_9750_PM_STATE	  GENMASK(1, 0)
>  
> +#define PCI_GLI_9750_CORRERR_MASK				0x214
> +#define   PCI_GLI_9750_CORRERR_MASK_REPLAY_TIMER_TIMEOUT	  BIT(12)
> +
>  #define SDHCI_GLI_9750_CFG2          0x848
>  #define   SDHCI_GLI_9750_CFG2_L1DLY    GENMASK(28, 24)
>  #define   GLI_9750_CFG2_L1DLY_VALUE    0x1F
> @@ -152,6 +155,9 @@
>  #define PCI_GLI_9755_PM_CTRL     0xFC
>  #define   PCI_GLI_9755_PM_STATE    GENMASK(1, 0)
>  
> +#define PCI_GLI_9755_CORRERR_MASK				0x214
> +#define   PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT	  BIT(12)
> +
>  #define SDHCI_GLI_9767_GM_BURST_SIZE			0x510
>  #define   SDHCI_GLI_9767_GM_BURST_SIZE_AXI_ALWAYS_SET	  BIT(8)
>  
> @@ -561,6 +567,11 @@ static void gl9750_hw_setting(struct sdhci_host *host)
>  	value &= ~PCI_GLI_9750_PM_STATE;
>  	pci_write_config_dword(pdev, PCI_GLI_9750_PM_CTRL, value);
>  
> +	/* mask the replay timer timeout of AER */
> +	pci_read_config_dword(pdev, PCI_GLI_9750_CORRERR_MASK, &value);
> +	value |= PCI_GLI_9750_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
> +	pci_write_config_dword(pdev, PCI_GLI_9750_CORRERR_MASK, value);
> +
>  	gl9750_wt_off(host);
>  }
>  
> @@ -770,6 +781,11 @@ static void gl9755_hw_setting(struct sdhci_pci_slot *slot)
>  	value &= ~PCI_GLI_9755_PM_STATE;
>  	pci_write_config_dword(pdev, PCI_GLI_9755_PM_CTRL, value);
>  
> +	/* mask the replay timer timeout of AER */
> +	pci_read_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, &value);
> +	value |= PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
> +	pci_write_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, value);
> +
>  	gl9755_wt_off(pdev);
>  }
>
Re: [PATCH V2] mmc: sdhci-pci-gli: GL975[05]: Mask the replay timer timeout of AER
Posted by Kai-Heng Feng 2 years, 1 month ago 
On Mon, Nov 6, 2023 at 11:29 AM Adrian Hunter <adrian.hunter@intel.com> wrote:
>
> On 18/10/23 13:33, Victor Shih wrote:
> > From: Victor Shih <victor.shih@genesyslogic.com.tw>
> >
> > Due to a flaw in the hardware design, the GL975x replay timer frequently
> > times out when ASPM is enabled. As a result, the warning messages that will
> > often appear in the system log when the system accesses the GL975x
> > PCI config. Therefore, the replay timer timeout must be masked.
> >
> > Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw>
>
> Acked-by: Adrian Hunter <adrian.hunter@intel.com>

Acked-by: Kai-Heng Feng <kai.heng.feng@canonical.com>

I'll send another patch to address the issue I am seeing.

Kai-Heng

>
> > ---
> >
> > Updates in V2:
> >  - Modify the commit message.
> >
> > ---
> >
> >  drivers/mmc/host/sdhci-pci-gli.c | 16 ++++++++++++++++
> >  1 file changed, 16 insertions(+)
> >
> > diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c
> > index d83261e857a5..d8a991b349a8 100644
> > --- a/drivers/mmc/host/sdhci-pci-gli.c
> > +++ b/drivers/mmc/host/sdhci-pci-gli.c
> > @@ -28,6 +28,9 @@
> >  #define PCI_GLI_9750_PM_CTRL 0xFC
> >  #define   PCI_GLI_9750_PM_STATE        GENMASK(1, 0)
> >
> > +#define PCI_GLI_9750_CORRERR_MASK                            0x214
> > +#define   PCI_GLI_9750_CORRERR_MASK_REPLAY_TIMER_TIMEOUT       BIT(12)
> > +
> >  #define SDHCI_GLI_9750_CFG2          0x848
> >  #define   SDHCI_GLI_9750_CFG2_L1DLY    GENMASK(28, 24)
> >  #define   GLI_9750_CFG2_L1DLY_VALUE    0x1F
> > @@ -152,6 +155,9 @@
> >  #define PCI_GLI_9755_PM_CTRL     0xFC
> >  #define   PCI_GLI_9755_PM_STATE    GENMASK(1, 0)
> >
> > +#define PCI_GLI_9755_CORRERR_MASK                            0x214
> > +#define   PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT       BIT(12)
> > +
> >  #define SDHCI_GLI_9767_GM_BURST_SIZE                 0x510
> >  #define   SDHCI_GLI_9767_GM_BURST_SIZE_AXI_ALWAYS_SET          BIT(8)
> >
> > @@ -561,6 +567,11 @@ static void gl9750_hw_setting(struct sdhci_host *host)
> >       value &= ~PCI_GLI_9750_PM_STATE;
> >       pci_write_config_dword(pdev, PCI_GLI_9750_PM_CTRL, value);
> >
> > +     /* mask the replay timer timeout of AER */
> > +     pci_read_config_dword(pdev, PCI_GLI_9750_CORRERR_MASK, &value);
> > +     value |= PCI_GLI_9750_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
> > +     pci_write_config_dword(pdev, PCI_GLI_9750_CORRERR_MASK, value);
> > +
> >       gl9750_wt_off(host);
> >  }
> >
> > @@ -770,6 +781,11 @@ static void gl9755_hw_setting(struct sdhci_pci_slot *slot)
> >       value &= ~PCI_GLI_9755_PM_STATE;
> >       pci_write_config_dword(pdev, PCI_GLI_9755_PM_CTRL, value);
> >
> > +     /* mask the replay timer timeout of AER */
> > +     pci_read_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, &value);
> > +     value |= PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
> > +     pci_write_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, value);
> > +
> >       gl9755_wt_off(pdev);
> >  }
> >
>
Re: [PATCH V2] mmc: sdhci-pci-gli: GL975[05]: Mask the replay timer timeout of AER
Posted by Victor Shih 2 years, 1 month ago 
Hi, Ulf

Please help review this patch and give me some advice.
I look forward to your reply.

Thanks, Victor Shih

On Wed, Oct 18, 2023 at 6:33 PM Victor Shih <victorshihgli@gmail.com> wrote:
>
> From: Victor Shih <victor.shih@genesyslogic.com.tw>
>
> Due to a flaw in the hardware design, the GL975x replay timer frequently
> times out when ASPM is enabled. As a result, the warning messages that will
> often appear in the system log when the system accesses the GL975x
> PCI config. Therefore, the replay timer timeout must be masked.
>
> Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw>
> ---
>
> Updates in V2:
>  - Modify the commit message.
>
> ---
>
>  drivers/mmc/host/sdhci-pci-gli.c | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>
> diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c
> index d83261e857a5..d8a991b349a8 100644
> --- a/drivers/mmc/host/sdhci-pci-gli.c
> +++ b/drivers/mmc/host/sdhci-pci-gli.c
> @@ -28,6 +28,9 @@
>  #define PCI_GLI_9750_PM_CTRL   0xFC
>  #define   PCI_GLI_9750_PM_STATE          GENMASK(1, 0)
>
> +#define PCI_GLI_9750_CORRERR_MASK                              0x214
> +#define   PCI_GLI_9750_CORRERR_MASK_REPLAY_TIMER_TIMEOUT         BIT(12)
> +
>  #define SDHCI_GLI_9750_CFG2          0x848
>  #define   SDHCI_GLI_9750_CFG2_L1DLY    GENMASK(28, 24)
>  #define   GLI_9750_CFG2_L1DLY_VALUE    0x1F
> @@ -152,6 +155,9 @@
>  #define PCI_GLI_9755_PM_CTRL     0xFC
>  #define   PCI_GLI_9755_PM_STATE    GENMASK(1, 0)
>
> +#define PCI_GLI_9755_CORRERR_MASK                              0x214
> +#define   PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT         BIT(12)
> +
>  #define SDHCI_GLI_9767_GM_BURST_SIZE                   0x510
>  #define   SDHCI_GLI_9767_GM_BURST_SIZE_AXI_ALWAYS_SET    BIT(8)
>
> @@ -561,6 +567,11 @@ static void gl9750_hw_setting(struct sdhci_host *host)
>         value &= ~PCI_GLI_9750_PM_STATE;
>         pci_write_config_dword(pdev, PCI_GLI_9750_PM_CTRL, value);
>
> +       /* mask the replay timer timeout of AER */
> +       pci_read_config_dword(pdev, PCI_GLI_9750_CORRERR_MASK, &value);
> +       value |= PCI_GLI_9750_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
> +       pci_write_config_dword(pdev, PCI_GLI_9750_CORRERR_MASK, value);
> +
>         gl9750_wt_off(host);
>  }
>
> @@ -770,6 +781,11 @@ static void gl9755_hw_setting(struct sdhci_pci_slot *slot)
>         value &= ~PCI_GLI_9755_PM_STATE;
>         pci_write_config_dword(pdev, PCI_GLI_9755_PM_CTRL, value);
>
> +       /* mask the replay timer timeout of AER */
> +       pci_read_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, &value);
> +       value |= PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
> +       pci_write_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, value);
> +
>         gl9755_wt_off(pdev);
>  }
>
> --
> 2.25.1
>
Re: [PATCH V2] mmc: sdhci-pci-gli: GL975[05]: Mask the replay timer timeout of AER
Posted by Ulf Hansson 2 years, 1 month ago 
On Fri, 3 Nov 2023 at 11:13, Victor Shih <victorshihgli@gmail.com> wrote:
>
> Hi, Ulf
>
> Please help review this patch and give me some advice.
> I look forward to your reply.
>
> Thanks, Victor Shih

I don't have in-depth knowledge of how to properly solve this for pci,
so I am relying on Kai and others to help review.

>
> On Wed, Oct 18, 2023 at 6:33 PM Victor Shih <victorshihgli@gmail.com> wrote:
> >
> > From: Victor Shih <victor.shih@genesyslogic.com.tw>
> >
> > Due to a flaw in the hardware design, the GL975x replay timer frequently
> > times out when ASPM is enabled. As a result, the warning messages that will
> > often appear in the system log when the system accesses the GL975x
> > PCI config. Therefore, the replay timer timeout must be masked.
> >
> > Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw>

The code looks good to me, but let's allow Kai to get some time to
come back to this before I apply it.

Kind regards
Uffe

> > ---
> >
> > Updates in V2:
> >  - Modify the commit message.
> >
> > ---
> >
> >  drivers/mmc/host/sdhci-pci-gli.c | 16 ++++++++++++++++
> >  1 file changed, 16 insertions(+)
> >
> > diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c
> > index d83261e857a5..d8a991b349a8 100644
> > --- a/drivers/mmc/host/sdhci-pci-gli.c
> > +++ b/drivers/mmc/host/sdhci-pci-gli.c
> > @@ -28,6 +28,9 @@
> >  #define PCI_GLI_9750_PM_CTRL   0xFC
> >  #define   PCI_GLI_9750_PM_STATE          GENMASK(1, 0)
> >
> > +#define PCI_GLI_9750_CORRERR_MASK                              0x214
> > +#define   PCI_GLI_9750_CORRERR_MASK_REPLAY_TIMER_TIMEOUT         BIT(12)
> > +
> >  #define SDHCI_GLI_9750_CFG2          0x848
> >  #define   SDHCI_GLI_9750_CFG2_L1DLY    GENMASK(28, 24)
> >  #define   GLI_9750_CFG2_L1DLY_VALUE    0x1F
> > @@ -152,6 +155,9 @@
> >  #define PCI_GLI_9755_PM_CTRL     0xFC
> >  #define   PCI_GLI_9755_PM_STATE    GENMASK(1, 0)
> >
> > +#define PCI_GLI_9755_CORRERR_MASK                              0x214
> > +#define   PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT         BIT(12)
> > +
> >  #define SDHCI_GLI_9767_GM_BURST_SIZE                   0x510
> >  #define   SDHCI_GLI_9767_GM_BURST_SIZE_AXI_ALWAYS_SET    BIT(8)
> >
> > @@ -561,6 +567,11 @@ static void gl9750_hw_setting(struct sdhci_host *host)
> >         value &= ~PCI_GLI_9750_PM_STATE;
> >         pci_write_config_dword(pdev, PCI_GLI_9750_PM_CTRL, value);
> >
> > +       /* mask the replay timer timeout of AER */
> > +       pci_read_config_dword(pdev, PCI_GLI_9750_CORRERR_MASK, &value);
> > +       value |= PCI_GLI_9750_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
> > +       pci_write_config_dword(pdev, PCI_GLI_9750_CORRERR_MASK, value);
> > +
> >         gl9750_wt_off(host);
> >  }
> >
> > @@ -770,6 +781,11 @@ static void gl9755_hw_setting(struct sdhci_pci_slot *slot)
> >         value &= ~PCI_GLI_9755_PM_STATE;
> >         pci_write_config_dword(pdev, PCI_GLI_9755_PM_CTRL, value);
> >
> > +       /* mask the replay timer timeout of AER */
> > +       pci_read_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, &value);
> > +       value |= PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
> > +       pci_write_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, value);
> > +
> >         gl9755_wt_off(pdev);
> >  }
> >
> > --
> > 2.25.1
> >
Re: [PATCH V2] mmc: sdhci-pci-gli: GL975[05]: Mask the replay timer timeout of AER
Posted by Victor Shih 2 years, 1 month ago 
On Fri, Nov 3, 2023 at 6:28 PM Ulf Hansson <ulf.hansson@linaro.org> wrote:
>
> On Fri, 3 Nov 2023 at 11:13, Victor Shih <victorshihgli@gmail.com> wrote:
> >
> > Hi, Ulf
> >
> > Please help review this patch and give me some advice.
> > I look forward to your reply.
> >
> > Thanks, Victor Shih
>
> I don't have in-depth knowledge of how to properly solve this for pci,
> so I am relying on Kai and others to help review.
>

Hi, Ulf

This is a standalone patch, this patch only solves the warning
messages that will
 often appear in the system log when the system accesses the GL975x PCI config.

As I discussed with Kai-Heng at the end of
[V1] mmc: sdhci-pci-gli: GL975[05]: Mask the replay timer timeout of AER,
Kai-Heng will be submitting a patch for the PCIe layer to solve the
situation he encountered.
I will also help Kai-Heng test when he submits the patch.

Thanks, Victor Shih

> >
> > On Wed, Oct 18, 2023 at 6:33 PM Victor Shih <victorshihgli@gmail.com> wrote:
> > >
> > > From: Victor Shih <victor.shih@genesyslogic.com.tw>
> > >
> > > Due to a flaw in the hardware design, the GL975x replay timer frequently
> > > times out when ASPM is enabled. As a result, the warning messages that will
> > > often appear in the system log when the system accesses the GL975x
> > > PCI config. Therefore, the replay timer timeout must be masked.
> > >
> > > Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw>
>
> The code looks good to me, but let's allow Kai to get some time to
> come back to this before I apply it.
>
> Kind regards
> Uffe
>
> > > ---
> > >
> > > Updates in V2:
> > >  - Modify the commit message.
> > >
> > > ---
> > >
> > >  drivers/mmc/host/sdhci-pci-gli.c | 16 ++++++++++++++++
> > >  1 file changed, 16 insertions(+)
> > >
> > > diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c
> > > index d83261e857a5..d8a991b349a8 100644
> > > --- a/drivers/mmc/host/sdhci-pci-gli.c
> > > +++ b/drivers/mmc/host/sdhci-pci-gli.c
> > > @@ -28,6 +28,9 @@
> > >  #define PCI_GLI_9750_PM_CTRL   0xFC
> > >  #define   PCI_GLI_9750_PM_STATE          GENMASK(1, 0)
> > >
> > > +#define PCI_GLI_9750_CORRERR_MASK                              0x214
> > > +#define   PCI_GLI_9750_CORRERR_MASK_REPLAY_TIMER_TIMEOUT         BIT(12)
> > > +
> > >  #define SDHCI_GLI_9750_CFG2          0x848
> > >  #define   SDHCI_GLI_9750_CFG2_L1DLY    GENMASK(28, 24)
> > >  #define   GLI_9750_CFG2_L1DLY_VALUE    0x1F
> > > @@ -152,6 +155,9 @@
> > >  #define PCI_GLI_9755_PM_CTRL     0xFC
> > >  #define   PCI_GLI_9755_PM_STATE    GENMASK(1, 0)
> > >
> > > +#define PCI_GLI_9755_CORRERR_MASK                              0x214
> > > +#define   PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT         BIT(12)
> > > +
> > >  #define SDHCI_GLI_9767_GM_BURST_SIZE                   0x510
> > >  #define   SDHCI_GLI_9767_GM_BURST_SIZE_AXI_ALWAYS_SET    BIT(8)
> > >
> > > @@ -561,6 +567,11 @@ static void gl9750_hw_setting(struct sdhci_host *host)
> > >         value &= ~PCI_GLI_9750_PM_STATE;
> > >         pci_write_config_dword(pdev, PCI_GLI_9750_PM_CTRL, value);
> > >
> > > +       /* mask the replay timer timeout of AER */
> > > +       pci_read_config_dword(pdev, PCI_GLI_9750_CORRERR_MASK, &value);
> > > +       value |= PCI_GLI_9750_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
> > > +       pci_write_config_dword(pdev, PCI_GLI_9750_CORRERR_MASK, value);
> > > +
> > >         gl9750_wt_off(host);
> > >  }
> > >
> > > @@ -770,6 +781,11 @@ static void gl9755_hw_setting(struct sdhci_pci_slot *slot)
> > >         value &= ~PCI_GLI_9755_PM_STATE;
> > >         pci_write_config_dword(pdev, PCI_GLI_9755_PM_CTRL, value);
> > >
> > > +       /* mask the replay timer timeout of AER */
> > > +       pci_read_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, &value);
> > > +       value |= PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
> > > +       pci_write_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, value);
> > > +
> > >         gl9755_wt_off(pdev);
> > >  }
> > >
> > > --
> > > 2.25.1
> > >
Re: [PATCH V2] mmc: sdhci-pci-gli: GL975[05]: Mask the replay timer timeout of AER
Posted by Ulf Hansson 2 years, 1 month ago 
On Mon, 6 Nov 2023 at 09:56, Victor Shih <victorshihgli@gmail.com> wrote:
>
> On Fri, Nov 3, 2023 at 6:28 PM Ulf Hansson <ulf.hansson@linaro.org> wrote:
> >
> > On Fri, 3 Nov 2023 at 11:13, Victor Shih <victorshihgli@gmail.com> wrote:
> > >
> > > Hi, Ulf
> > >
> > > Please help review this patch and give me some advice.
> > > I look forward to your reply.
> > >
> > > Thanks, Victor Shih
> >
> > I don't have in-depth knowledge of how to properly solve this for pci,
> > so I am relying on Kai and others to help review.
> >
>
> Hi, Ulf
>
> This is a standalone patch, this patch only solves the warning
> messages that will
>  often appear in the system log when the system accesses the GL975x PCI config.
>
> As I discussed with Kai-Heng at the end of
> [V1] mmc: sdhci-pci-gli: GL975[05]: Mask the replay timer timeout of AER,
> Kai-Heng will be submitting a patch for the PCIe layer to solve the
> situation he encountered.
> I will also help Kai-Heng test when he submits the patch.
>
> Thanks, Victor Shih

Hi Victor,

I was just about to apply the patch for my fixes branch, when I
realized that it would be better to split it up in two patches. One
patch for GL9755 and another for GL9750.

In this way we can easier manage the back-porting to older stable kernels.

The patch for GL9755 should have the below fixes tag:
Fixes: 36ed2fd32b2c ("mmc: sdhci-pci-gli: A workaround to allow GL9755
to enter ASPM L1.2")

The patch for GL9750 should have the below fixes tag:
Fixes: d7133797e9e1 ("mmc: sdhci-pci-gli: A workaround to allow GL9750
to enter ASPM L1.2")

I think you should feel free to keep Adrian's and Kai's acks for both
of the two new patches, as the end result should end up being the
same.

[...]

Kind regards
Uffe

Patchew 2.1-devel-b67e4c2

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