Re: [PATCH] Revert "iommu/amd: Fix performance counter initialization"

2021-04-07 Thread Joerg Roedel
Hi Paul, On Thu, Mar 18, 2021 at 10:20:16AM +0100, Paul Menzel wrote: > Jörg, I know you are probably busy, but the patch was applied to the stable > series (v5.11.7). There are still too many question open regarding the > patch, and Suravee has not yet addressed the comments. It’d be great, if

Re: [PATCH] Revert "iommu/amd: Fix performance counter initialization"

2021-03-18 Thread Paul Menzel
Dear Jörg, dear Suravee, Am 03.03.21 um 15:10 schrieb Alexander Monakov: On Wed, 3 Mar 2021, Suravee Suthikulpanit wrote: Additionally, alternative proposed solutions [1] were not considered or discussed.

Re: [PATCH] Revert "iommu/amd: Fix performance counter initialization"

2021-03-03 Thread Alexander Monakov
On Wed, 3 Mar 2021, Suravee Suthikulpanit wrote: > > Additionally, alternative proposed solutions [1] were not considered or > > discussed. > > > > [1]:https://lore.kernel.org/linux-iommu/alpine.lnx.2.20.13.2006030935570.3...@monopod.intra.ispras.ru/ > > This check has been introduced early on

Re: [PATCH] Revert "iommu/amd: Fix performance counter initialization"

2021-03-03 Thread Suravee Suthikulpanit
Paul, On 3/3/21 7:11 PM, Paul Menzel wrote: This reverts commit 6778ff5b21bd8e78c8bd547fd66437cf2657fd9b. The commit adds up to 100 ms to the boot process, which is not mentioned in the commit message, and is making up more than 20 % on current systems, where the Linux kernel takes 500 ms.

[PATCH] Revert "iommu/amd: Fix performance counter initialization"

2021-03-03 Thread Paul Menzel
This reverts commit 6778ff5b21bd8e78c8bd547fd66437cf2657fd9b. The commit adds up to 100 ms to the boot process, which is not mentioned in the commit message, and is making up more than 20 % on current systems, where the Linux kernel takes 500 ms. [0.00] Linux version