Re: [PATCH 1/3] ppc/pnv: Tune the POWER9 PCIe Host bridge model

2021-11-29 Thread Frederic Barrat
On 26/11/2021 10:09, Cédric Le Goater wrote: On 11/16/21 18:01, Frederic Barrat wrote: The PHB v4 found on POWER9 doesn't request any LSI, so let's clear the Interrupt Pin register in the config space so that the model matches the hardware. If we don't, then we inherit from the default pcie

Re: [PATCH 1/3] ppc/pnv: Tune the POWER9 PCIe Host bridge model

2021-11-28 Thread Michael S. Tsirkin
On Fri, Nov 26, 2021 at 06:08:30PM +0100, Cédric Le Goater wrote: > [ Adding Alfredo the thread ] > > On 11/26/21 10:09, Cédric Le Goater wrote: > > On 11/16/21 18:01, Frederic Barrat wrote: > > > The PHB v4 found on POWER9 doesn't request any LSI, so let's clear the > > > Interrupt Pin register

Re: [PATCH 1/3] ppc/pnv: Tune the POWER9 PCIe Host bridge model

2021-11-26 Thread Cédric Le Goater
[ Adding Alfredo the thread ] On 11/26/21 10:09, Cédric Le Goater wrote: On 11/16/21 18:01, Frederic Barrat wrote: The PHB v4 found on POWER9 doesn't request any LSI, so let's clear the Interrupt Pin register in the config space so that the model matches the hardware. If we don't, then we

Re: [PATCH 1/3] ppc/pnv: Tune the POWER9 PCIe Host bridge model

2021-11-26 Thread Cédric Le Goater
On 11/16/21 18:01, Frederic Barrat wrote: The PHB v4 found on POWER9 doesn't request any LSI, so let's clear the Interrupt Pin register in the config space so that the model matches the hardware. If we don't, then we inherit from the default pcie root bridge, which requests a LSI. And because

Re: [PATCH 1/3] ppc/pnv: Tune the POWER9 PCIe Host bridge model

2021-11-18 Thread Cédric Le Goater
On 11/16/21 18:01, Frederic Barrat wrote: The PHB v4 found on POWER9 doesn't request any LSI, so let's clear the Interrupt Pin register in the config space so that the model matches the hardware. If we don't, then we inherit from the default pcie root bridge, which requests a LSI. And because

[PATCH 1/3] ppc/pnv: Tune the POWER9 PCIe Host bridge model

2021-11-16 Thread Frederic Barrat
The PHB v4 found on POWER9 doesn't request any LSI, so let's clear the Interrupt Pin register in the config space so that the model matches the hardware. If we don't, then we inherit from the default pcie root bridge, which requests a LSI. And because we don't map it correctly in the device tree,