RE: [PATCH] ACPI: resource: Remove "Zen" specific match and quirks

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> -----Original Message-----
> From: Matthew Anderson <ruinairas1992@xxxxxxxxx>
> Sent: Thursday, June 1, 2023 7:01 PM
> To: Limonciello, Mario <Mario.Limonciello@xxxxxxx>; rafael@xxxxxxxxxx
> Cc: gch981213@xxxxxxxxx; linux-acpi@xxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; regressions@xxxxxxxxxxxxx;
> ofenfisch@xxxxxxxxxxxxxx; wse@xxxxxxxxxxxxxxxxxxx;
> adam.niederer@xxxxxxxxx; adrian@xxxxxxxxx; jirislaby@xxxxxxxxxx;
> Pananchikkal, Renjith <Renjith.Pananchikkal@xxxxxxx>; Tsao, Anson
> <anson.tsao@xxxxxxx>; Gong, Richard <Richard.Gong@xxxxxxx>;
> evilsnoo@xxxxxxxxx
> Subject: Re: [PATCH] ACPI: resource: Remove "Zen" specific match and quirks
>
> I tested Patch v3 and it still works on the Aya Neo Air Plus.
>
> Tested-by: Matthew Anderson<ruinairas1992@xxxxxxxxx>
>

Thanks!
Could you reply directly to the v3 patch instead?

Then b4 am will be able to pick up your tag directly.

> On 5/15/23 4:38 PM, Mario Limonciello wrote:
> > commit 9946e39fe8d0 ("ACPI: resource: skip IRQ override on
> > AMD Zen platforms") attempted to overhaul the override logic so it
> > didn't apply on X86 AMD Zen systems.  This was intentional so that
> > systems would prefer DSDT values instead of default MADT value for
> > IRQ 1 on Ryzen 6000 systems which use ActiveLow for IRQ1.
> >
> > This turned out to be a bad assumption because several vendors seem
> > to add Interrupt Source Override but don't fix the DSDT. A pile of
> > quirks was collecting that proved this wasn't sustaintable.
> >
> > Adjust the logic so that only IRQ1 is overridden in Ryzen 6000 case.
> >
> > This effectively reverts the following commits:
> > commit 17bb7046e7ce ("ACPI: resource: Do IRQ override on all TongFang
> > GMxRGxx")
> > commit f3cb9b740869 ("ACPI: resource: do IRQ override on Lenovo
> 14ALC7")
> > commit bfcdf58380b1 ("ACPI: resource: do IRQ override on LENOVO
> IdeaPad")
> > commit 7592b79ba4a9 ("ACPI: resource: do IRQ override on XMG Core 15")
> >
> > Cc: ofenfisch@xxxxxxxxxxxxxx
> > Cc: gch981213@xxxxxxxxx
> > Cc: wse@xxxxxxxxxxxxxxxxxxx
> > Cc: adam.niederer@xxxxxxxxx
> > Cc: adrian@xxxxxxxxx
> > Cc: jirislaby@xxxxxxxxxx
> > Tested-by: Renjith.Pananchikkal@xxxxxxx
> > Tested-by: anson.tsao@xxxxxxx
> > Tested-by: Richard.Gong@xxxxxxx
> > Reported-by: evilsnoo@xxxxxxxxx
> > Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217394
> > Reported-by: ruinairas1992@xxxxxxxxx
> > Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217406
> > Fixes: 9946e39fe8d0 ("ACPI: resource: skip IRQ override on AMD Zen
> platforms")
> > Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
> > ---
> >   drivers/acpi/resource.c | 154 +++++++++++++++++-----------------------
> >   1 file changed, 65 insertions(+), 89 deletions(-)
> >
> > diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
> > index e8492b3a393a..828adb4be721 100644
> > --- a/drivers/acpi/resource.c
> > +++ b/drivers/acpi/resource.c
> > @@ -470,53 +470,7 @@ static const struct dmi_system_id asus_laptop[] = {
> >     { }
> >   };
> >
> > -static const struct dmi_system_id lenovo_laptop[] = {
> > -   {
> > -           .ident = "LENOVO IdeaPad Flex 5 14ALC7",
> > -           .matches = {
> > -                   DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
> > -                   DMI_MATCH(DMI_PRODUCT_NAME, "82R9"),
> > -           },
> > -   },
> > -   {
> > -           .ident = "LENOVO IdeaPad Flex 5 16ALC7",
> > -           .matches = {
> > -                   DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
> > -                   DMI_MATCH(DMI_PRODUCT_NAME, "82RA"),
> > -           },
> > -   },
> > -   { }
> > -};
> > -
> > -static const struct dmi_system_id tongfang_gm_rg[] = {
> > -   {
> > -           .ident = "TongFang GMxRGxx/XMG CORE 15 (M22)/TUXEDO
> Stellaris 15 Gen4 AMD",
> > -           .matches = {
> > -                   DMI_MATCH(DMI_BOARD_NAME, "GMxRGxx"),
> > -           },
> > -   },
> > -   { }
> > -};
> > -
> > -static const struct dmi_system_id maingear_laptop[] = {
> > -   {
> > -           .ident = "MAINGEAR Vector Pro 2 15",
> > -           .matches = {
> > -                   DMI_MATCH(DMI_SYS_VENDOR, "Micro Electronics
> Inc"),
> > -                   DMI_MATCH(DMI_PRODUCT_NAME, "MG-VCP2-
> 15A3070T"),
> > -           }
> > -   },
> > -   {
> > -           .ident = "MAINGEAR Vector Pro 2 17",
> > -           .matches = {
> > -                   DMI_MATCH(DMI_SYS_VENDOR, "Micro Electronics
> Inc"),
> > -                   DMI_MATCH(DMI_PRODUCT_NAME, "MG-VCP2-
> 17A3070T"),
> > -           },
> > -   },
> > -   { }
> > -};
> > -
> > -struct irq_override_cmp {
> > +struct irq_override_dmi_cmp {
> >     const struct dmi_system_id *system;
> >     unsigned char irq;
> >     unsigned char triggering;
> > @@ -525,49 +479,85 @@ struct irq_override_cmp {
> >     bool override;
> >   };
> >
> > -static const struct irq_override_cmp override_table[] = {
> > +struct irq_override_acpi_cmp {
> > +   const char *id;
> > +   unsigned char irq;
> > +   unsigned char triggering;
> > +   unsigned char polarity;
> > +};
> > +
> > +static const struct irq_override_dmi_cmp dmi_override_table[] = {
> >     { medion_laptop, 1, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0,
> false },
> >     { asus_laptop, 1, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0, false
> },
> > -   { lenovo_laptop, 6, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0,
> true },
> > -   { lenovo_laptop, 10, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0,
> true },
> > -   { tongfang_gm_rg, 1, ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_LOW, 1,
> true },
> > -   { maingear_laptop, 1, ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_LOW, 1,
> true },
> >   };
> >
> > -static bool acpi_dev_irq_override(u32 gsi, u8 triggering, u8 polarity,
> > -                             u8 shareable)
> > +/*
> > + * Ryzen 6000 requires ActiveLow for keyboard, but a number of machines
> > + * seem to get it wrong in DSDT or don't have an Interrupt Source
> > + * Override.
> > + */
> > +static const struct irq_override_acpi_cmp acpi_override_table[] = {
> > +   { "AMDI0007", 1, ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_LOW },
> > +};
> > +
> > +static void acpi_dev_irq_override(u32 gsi, u8 *triggering, u8 *polarity,
> > +                             u8 *shareable)
> >   {
> > -   int i;
> > +   int i, p, t;
> > +   int check_override = true;
> >
> > -   for (i = 0; i < ARRAY_SIZE(override_table); i++) {
> > -           const struct irq_override_cmp *entry = &override_table[i];
> > +   for (i = 0; i < ARRAY_SIZE(dmi_override_table); i++) {
> > +           const struct irq_override_dmi_cmp *entry =
> &dmi_override_table[i];
> >
> >             if (dmi_check_system(entry->system) &&
> >                 entry->irq == gsi &&
> > -               entry->triggering == triggering &&
> > -               entry->polarity == polarity &&
> > -               entry->shareable == shareable)
> > -                   return entry->override;
> > +               entry->triggering == *triggering &&
> > +               entry->polarity == *polarity &&
> > +               entry->shareable == *shareable)
> > +                   check_override = entry->override;
> >     }
> >
> > -#ifdef CONFIG_X86
> > -   /*
> > -    * IRQ override isn't needed on modern AMD Zen systems and
> > -    * this override breaks active low IRQs on AMD Ryzen 6000 and
> > -    * newer systems. Skip it.
> > -    */
> > -   if (boot_cpu_has(X86_FEATURE_ZEN))
> > -           return false;
> > -#endif
> > +   if (!check_override)
> > +           return;
> >
> > -   return true;
> > +   if (!acpi_get_override_irq(gsi, &t, &p)) {
> > +           u8 trig = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
> > +           u8 pol = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
> > +
> > +           if (*triggering != trig || *polarity != pol) {
> > +                   pr_warn("ACPI: IRQ %d override to %s%s, %s%s\n",
> gsi,
> > +                           t ? "level" : "edge",
> > +                           trig == *triggering ? "" : "(!)",
> > +                           p ? "low" : "high",
> > +                           pol == *polarity ? "" : "(!)");
> > +                   *triggering = trig;
> > +                   *polarity = pol;
> > +           }
> > +   }
> > +
> > +   for (i = 0; i < ARRAY_SIZE(acpi_override_table); i++) {
> > +           const struct irq_override_acpi_cmp *entry =
> &acpi_override_table[i];
> > +
> > +           if (acpi_dev_found(entry->id) && gsi == entry->irq &&
> > +              (*polarity != entry->polarity || *triggering != entry-
> >triggering)) {
> > +                   pr_warn("ACPI: IRQ %d override to %s%s, %s%s due
> to %s\n",
> > +                           gsi,
> > +                           entry->triggering ? "level" : "edge",
> > +                           entry->triggering == *triggering ? "" : "(!)",
> > +                           entry->polarity ? "low" : "high",
> > +                           entry->polarity == *polarity ? "" : "(!)",
> > +                           entry->id);
> > +                   *polarity = entry->polarity;
> > +                   *triggering = entry->triggering;
> > +           }
> > +   }
> >   }
> >
> >   static void acpi_dev_get_irqresource(struct resource *res, u32 gsi,
> >                                  u8 triggering, u8 polarity, u8 shareable,
> >                                  u8 wake_capable, bool check_override)
> >   {
> > -   int irq, p, t;
> > +   int irq;
> >
> >     if (!valid_IRQ(gsi)) {
> >             irqresource_disabled(res, gsi);
> > @@ -580,26 +570,12 @@ static void acpi_dev_get_irqresource(struct
> resource *res, u32 gsi,
> >      * 2. BIOS uses IO-APIC mode Interrupt Source Override
> >      *
> >      * We do this only if we are dealing with IRQ() or IRQNoFlags()
> > -    * resource (the legacy ISA resources). With modern ACPI 5 devices
> > +    * resource (the legacy ISA resources). With ACPI devices
> >      * using extended IRQ descriptors we take the IRQ configuration
> >      * from _CRS directly.
> >      */
> > -   if (check_override &&
> > -       acpi_dev_irq_override(gsi, triggering, polarity, shareable) &&
> > -       !acpi_get_override_irq(gsi, &t, &p)) {
> > -           u8 trig = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
> > -           u8 pol = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
> > -
> > -           if (triggering != trig || polarity != pol) {
> > -                   pr_warn("ACPI: IRQ %d override to %s%s, %s%s\n",
> gsi,
> > -                           t ? "level" : "edge",
> > -                           trig == triggering ? "" : "(!)",
> > -                           p ? "low" : "high",
> > -                           pol == polarity ? "" : "(!)");
> > -                   triggering = trig;
> > -                   polarity = pol;
> > -           }
> > -   }
> > +   if (check_override)
> > +           acpi_dev_irq_override(gsi, &triggering, &polarity, &shareable);
> >
> >     res->flags = acpi_dev_irq_flags(triggering, polarity, shareable,
> wake_capable);
> >     irq = acpi_register_gsi(NULL, gsi, triggering, polarity);




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