Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

Am Fri, 2 Apr 2021 15:09:12 +0200 schrieb "Enrico Weigelt, metux IT consult" : > On 09.03.21 09:42, Henning Schild wrote: > > > The device will respond to MMIO while being hidden. I am afraid > > nothing stops a collision, except for the assumption that the BIOS > > is always right and PCI

Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

On 09.03.21 09:42, Henning Schild wrote: The device will respond to MMIO while being hidden. I am afraid nothing stops a collision, except for the assumption that the BIOS is always right and PCI devices never get remapped. But just guessing here. What could go wrong if it is remapped, except

Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

On Thu, Apr 01, 2021 at 09:23:04PM +0300, Andy Shevchenko wrote: > On Thu, Apr 01, 2021 at 11:42:56AM -0500, Bjorn Helgaas wrote: > > On Thu, Apr 01, 2021 at 06:45:02PM +0300, Andy Shevchenko wrote: > > > On Tue, Mar 09, 2021 at 09:42:52AM +0100, Henning Schild wrote: > > > > Am Mon, 8 Mar 2021

Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

On Sat, Mar 13, 2021 at 10:45:57AM +0100, Henning Schild wrote: > Am Mon, 8 Mar 2021 14:20:16 +0200 > schrieb Andy Shevchenko : ... > > + * pci_p2sb_bar - Get Primary to Sideband bridge (P2SB) device BAR > > + * @pdev: PCI device to get a PCI bus to communicate with > > + * @devfn: PCI slot and

Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

On Tue, Mar 09, 2021 at 09:42:52AM +0100, Henning Schild wrote: > Am Mon, 8 Mar 2021 19:42:21 -0600 > schrieb Bjorn Helgaas : > > On Mon, Mar 08, 2021 at 09:16:50PM +0200, Andy Shevchenko wrote: > > > On Mon, Mar 08, 2021 at 12:52:12PM -0600, Bjorn Helgaas wrote: > > > > On Mon, Mar 08, 2021 at

Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

On Thu, Apr 01, 2021 at 09:22:02PM +0300, Andy Shevchenko wrote: > On Thu, Apr 01, 2021 at 09:06:17PM +0300, Mika Westerberg wrote: > > On Thu, Apr 01, 2021 at 06:43:11PM +0300, Andy Shevchenko wrote: > > > On Sat, Mar 13, 2021 at 10:45:57AM +0100, Henning Schild wrote: > > > > Am Mon, 8 Mar 2021

Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

On Thu, Apr 01, 2021 at 11:42:56AM -0500, Bjorn Helgaas wrote: > On Thu, Apr 01, 2021 at 06:45:02PM +0300, Andy Shevchenko wrote: > > On Tue, Mar 09, 2021 at 09:42:52AM +0100, Henning Schild wrote: > > > Am Mon, 8 Mar 2021 19:42:21 -0600 > > > schrieb Bjorn Helgaas : > > > > On Mon, Mar 08, 2021

Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

On Thu, Apr 01, 2021 at 09:06:17PM +0300, Mika Westerberg wrote: > On Thu, Apr 01, 2021 at 06:43:11PM +0300, Andy Shevchenko wrote: > > On Sat, Mar 13, 2021 at 10:45:57AM +0100, Henning Schild wrote: > > > Am Mon, 8 Mar 2021 14:20:16 +0200 > > > schrieb Andy Shevchenko : > > > > ... > > > > > >

Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

On Thu, Apr 01, 2021 at 06:43:11PM +0300, Andy Shevchenko wrote: > On Sat, Mar 13, 2021 at 10:45:57AM +0100, Henning Schild wrote: > > Am Mon, 8 Mar 2021 14:20:16 +0200 > > schrieb Andy Shevchenko : > > ... > > > > + * pci_p2sb_bar - Get Primary to Sideband bridge (P2SB) device BAR > > > + *

Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

On Thu, Apr 01, 2021 at 06:45:02PM +0300, Andy Shevchenko wrote: > On Tue, Mar 09, 2021 at 09:42:52AM +0100, Henning Schild wrote: > > Am Mon, 8 Mar 2021 19:42:21 -0600 > > schrieb Bjorn Helgaas : > > > On Mon, Mar 08, 2021 at 09:16:50PM +0200, Andy Shevchenko wrote: > > > > On Mon, Mar 08, 2021

Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

Am Mon, 8 Mar 2021 14:20:16 +0200 schrieb Andy Shevchenko : > From: Jonathan Yong > > There is already one and at least one more user is coming which > requires an access to Primary to Sideband bridge (P2SB) in order to > get IO or MMIO bar hidden by BIOS. Create a library to access P2SB > for

Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

Am Mon, 8 Mar 2021 19:42:21 -0600 schrieb Bjorn Helgaas : > On Mon, Mar 08, 2021 at 09:16:50PM +0200, Andy Shevchenko wrote: > > On Mon, Mar 08, 2021 at 12:52:12PM -0600, Bjorn Helgaas wrote: > > > On Mon, Mar 08, 2021 at 02:20:16PM +0200, Andy Shevchenko wrote: > > > > From: Jonathan Yong >

Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

On Mon, Mar 08, 2021 at 09:16:50PM +0200, Andy Shevchenko wrote: > On Mon, Mar 08, 2021 at 12:52:12PM -0600, Bjorn Helgaas wrote: > > On Mon, Mar 08, 2021 at 02:20:16PM +0200, Andy Shevchenko wrote: > > > From: Jonathan Yong > > > > > > There is already one and at least one more user is coming

Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

On Mon, Mar 08, 2021 at 12:52:12PM -0600, Bjorn Helgaas wrote: > On Mon, Mar 08, 2021 at 02:20:16PM +0200, Andy Shevchenko wrote: > > From: Jonathan Yong > > > > There is already one and at least one more user is coming which > > requires an access to Primary to Sideband bridge (P2SB) in order

Re: [PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

On Mon, Mar 08, 2021 at 02:20:16PM +0200, Andy Shevchenko wrote: > From: Jonathan Yong > > There is already one and at least one more user is coming which > requires an access to Primary to Sideband bridge (P2SB) in order to > get IO or MMIO bar hidden by BIOS. Create a library to access P2SB >

[PATCH v1 3/7] PCI: New Primary to Sideband (P2SB) bridge support library

From: Jonathan Yong There is already one and at least one more user is coming which requires an access to Primary to Sideband bridge (P2SB) in order to get IO or MMIO bar hidden by BIOS. Create a library to access P2SB for x86 devices. Signed-off-by: Jonathan Yong Co-developed-by: Andy