[+cc Greg, no action needed yet, just FYI that stable will want these]
On Thu, Aug 25, 2022 at 02:28:19PM +0530, Lijo Lazar wrote:
> HDP flush is used early in the init sequence as part of memory controller
> block initialization. Hence remapping of HDP registers needed for flush
> needs to happen earlier.
>
> This also fixes the AER error reported as Unsupported Request during
> driver load.
I would say something like:
This prevents writes to unimplemented space, which would cause
Unsupported Request errors. Prior to 8795e182b02d ("PCI/portdrv:
Don't disable AER reporting in get_port_device_capability()"), these
errors occurred but were ignored.
The write is the error; AER is just the reporting mechanism.
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=216373
We need a cc: stable because 8795e182b02d ("PCI/portdrv: Don't disable
AER reporting in get_port_device_capability()") has already been
backported to at lealst these stable kernels:
5.10.137 5.15.61 5.18.18 5.19.2
and these fixes need to go there as well. So add something like this:
Fixes: 8795e182b02d ("PCI/portdrv: Don't disable AER reporting in get_port_device_capability()")
cc: stable@xxxxxxxxxxxxxxx
It's not that there was something wrong with 8795e182b02d and these
patches fix it; it's just that 8795e182b02d *exposed* an amdgpu
problem that was there all along. But we need some way to connect
with it.
> Reported-by: Tom Seewald <tseewald@xxxxxxxxx>
> Signed-off-by: Lijo Lazar <lijo.lazar@xxxxxxx>
