Messages in this thread | | | Subject | Re: [RFC PATCH 08/17] net: ipa: Add support for IPA v2.x interrupts | From | Alex Elder <> | Date | Wed, 13 Oct 2021 17:29:58 -0500 |
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On 9/19/21 10:08 PM, Sireesh Kodali wrote: > From: Vladimir Lypak <vladimir.lypak@gmail.com> > > Interrupts on IPA v2.x have different numbers from the v3.x and above > interrupts. IPA v2.x also doesn't support the TX_SUSPEND irq, like v3.0
I'm not sure I like this way of fixing the interrupt ids (by adding an offset), but it's a simple change. (And now I have a better understanding for why the "fixup" function exists).
-Alex
> > Signed-off-by: Vladimir Lypak <vladimir.lypak@gmail.com> > Signed-off-by: Sireesh Kodali <sireeshkodali1@gmail.com> > --- > drivers/net/ipa/ipa_interrupt.c | 11 ++++++++--- > 1 file changed, 8 insertions(+), 3 deletions(-) > > diff --git a/drivers/net/ipa/ipa_interrupt.c b/drivers/net/ipa/ipa_interrupt.c > index 94708a23a597..37b5932253aa 100644 > --- a/drivers/net/ipa/ipa_interrupt.c > +++ b/drivers/net/ipa/ipa_interrupt.c > @@ -63,6 +63,11 @@ static bool ipa_interrupt_check_fixup(enum ipa_irq_id *irq_id, enum ipa_version > > if (*irq_id >= IPA_IRQ_DRBIP_PKT_EXCEED_MAX_SIZE_EN) > return version >= IPA_VERSION_4_9; > + else if (*irq_id > IPA_IRQ_BAM_GSI_IDLE) > + return version >= IPA_VERSION_3_0; > + else if (version <= IPA_VERSION_2_6L && > + *irq_id >= IPA_IRQ_PROC_UC_ACK_Q_NOT_EMPTY) > + *irq_id += 2; > > return true; > } > @@ -152,8 +157,8 @@ static void ipa_interrupt_suspend_control(struct ipa_interrupt *interrupt, > > WARN_ON(!(mask & ipa->available)); > > - /* IPA version 3.0 does not support TX_SUSPEND interrupt control */ > - if (ipa->version == IPA_VERSION_3_0) > + /* IPA version <=3.0 does not support TX_SUSPEND interrupt control */ > + if (ipa->version <= IPA_VERSION_3_0) > return; > > offset = ipa_reg_irq_suspend_en_offset(ipa->version); > @@ -190,7 +195,7 @@ void ipa_interrupt_suspend_clear_all(struct ipa_interrupt *interrupt) > val = ioread32(ipa->reg_virt + offset); > > /* SUSPEND interrupt status isn't cleared on IPA version 3.0 */ > - if (ipa->version == IPA_VERSION_3_0) > + if (ipa->version <= IPA_VERSION_3_0) > return; > > offset = ipa_reg_irq_suspend_clr_offset(ipa->version); >
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