Re: [PATCH v1 1/2] iommu/tegra-smmu: Defer attachment of display clients

2021-04-09 Thread Dmitry Osipenko
08.04.2021 17:07, Dmitry Osipenko пишет: >> Whatever happened to the idea of creating identity mappings based on the >> obscure tegra_fb_mem (or whatever it was called) command-line option? Is >> that command-line not universally passed to the kernel from bootloaders >> that initialize display? > T

Re: [PATCH v1 1/2] iommu/tegra-smmu: Defer attachment of display clients

2021-04-08 Thread Dmitry Osipenko
08.04.2021 16:26, Thierry Reding пишет: > On Thu, Apr 08, 2021 at 02:42:42AM -0700, Nicolin Chen wrote: >> On Mon, Mar 29, 2021 at 02:32:55AM +0300, Dmitry Osipenko wrote: >>> All consumer-grade Android and Chromebook devices show a splash screen >>> on boot and then display is left enabled when ke

Re: [PATCH v1 1/2] iommu/tegra-smmu: Defer attachment of display clients

2021-04-08 Thread Dmitry Osipenko
08.04.2021 15:40, Thierry Reding пишет: > On Mon, Mar 29, 2021 at 02:32:55AM +0300, Dmitry Osipenko wrote: >> All consumer-grade Android and Chromebook devices show a splash screen >> on boot and then display is left enabled when kernel is booted. This >> behaviour is unacceptable in a case of impl

Re: [PATCH v1 1/2] iommu/tegra-smmu: Defer attachment of display clients

2021-04-08 Thread Thierry Reding
On Thu, Apr 08, 2021 at 02:42:42AM -0700, Nicolin Chen wrote: > On Mon, Mar 29, 2021 at 02:32:55AM +0300, Dmitry Osipenko wrote: > > All consumer-grade Android and Chromebook devices show a splash screen > > on boot and then display is left enabled when kernel is booted. This > > behaviour is unacc

Re: [PATCH v1 1/2] iommu/tegra-smmu: Defer attachment of display clients

2021-04-08 Thread Thierry Reding
On Mon, Mar 29, 2021 at 02:32:55AM +0300, Dmitry Osipenko wrote: > All consumer-grade Android and Chromebook devices show a splash screen > on boot and then display is left enabled when kernel is booted. This > behaviour is unacceptable in a case of implicit IOMMU domains to which > devices are att

Re: [PATCH v1 1/2] iommu/tegra-smmu: Defer attachment of display clients

2021-04-08 Thread Nicolin Chen
On Mon, Mar 29, 2021 at 02:32:55AM +0300, Dmitry Osipenko wrote: > All consumer-grade Android and Chromebook devices show a splash screen > on boot and then display is left enabled when kernel is booted. This > behaviour is unacceptable in a case of implicit IOMMU domains to which > devices are att

[PATCH v1 1/2] iommu/tegra-smmu: Defer attachment of display clients

2021-03-28 Thread Dmitry Osipenko
All consumer-grade Android and Chromebook devices show a splash screen on boot and then display is left enabled when kernel is booted. This behaviour is unacceptable in a case of implicit IOMMU domains to which devices are attached during kernel boot since devices, like display controller, may perf