Re: [PATCH v5 05/19] arm64: Add support for trace synchronization barrier

2021-03-26 Thread Mathieu Poirier
On Wed, Mar 24, 2021 at 05:40:39PM +, Marc Zyngier wrote: > On Wed, 24 Mar 2021 17:19:36 +, > Catalin Marinas wrote: > > > > On Wed, Mar 24, 2021 at 05:06:58PM +, Suzuki K Poulose wrote: > > > On 24/03/2021 16:30, Marc Zyngier wrote: > > > > > > > > OK, so we definitely do need these

Re: [PATCH v5 05/19] arm64: Add support for trace synchronization barrier

2021-03-24 Thread Marc Zyngier
On Wed, 24 Mar 2021 17:19:36 +, Catalin Marinas wrote: > > On Wed, Mar 24, 2021 at 05:06:58PM +, Suzuki K Poulose wrote: > > On 24/03/2021 16:30, Marc Zyngier wrote: > > > > > > OK, so we definitely do need these patches, don't we? Both? Just one? > > > Please have a look at kvmarm/fixes

Re: [PATCH v5 05/19] arm64: Add support for trace synchronization barrier

2021-03-24 Thread Catalin Marinas
On Wed, Mar 24, 2021 at 05:06:58PM +, Suzuki K Poulose wrote: > On 24/03/2021 16:30, Marc Zyngier wrote: > > On Wed, 24 Mar 2021 16:25:12 +, > > Suzuki K Poulose wrote: > > > > > > On 24/03/2021 16:16, Marc Zyngier wrote: > > > > On Wed, 24 Mar 2021 15:51:14 +, > > > > Suzuki K Poulos

Re: [PATCH v5 05/19] arm64: Add support for trace synchronization barrier

2021-03-24 Thread Suzuki K Poulose
On 24/03/2021 16:30, Marc Zyngier wrote: On Wed, 24 Mar 2021 16:25:12 +, Suzuki K Poulose wrote: On 24/03/2021 16:16, Marc Zyngier wrote: On Wed, 24 Mar 2021 15:51:14 +, Suzuki K Poulose wrote: On 24/03/2021 13:49, Marc Zyngier wrote: On Wed, 24 Mar 2021 09:39:13 +, Suzuki K P

Re: [PATCH v5 05/19] arm64: Add support for trace synchronization barrier

2021-03-24 Thread Marc Zyngier
On Wed, 24 Mar 2021 16:25:12 +, Suzuki K Poulose wrote: > > On 24/03/2021 16:16, Marc Zyngier wrote: > > On Wed, 24 Mar 2021 15:51:14 +, > > Suzuki K Poulose wrote: > >> > >> On 24/03/2021 13:49, Marc Zyngier wrote: > >>> On Wed, 24 Mar 2021 09:39:13 +, > >>> Suzuki K Poulose wrote

Re: [PATCH v5 05/19] arm64: Add support for trace synchronization barrier

2021-03-24 Thread Suzuki K Poulose
On 24/03/2021 16:16, Marc Zyngier wrote: On Wed, 24 Mar 2021 15:51:14 +, Suzuki K Poulose wrote: On 24/03/2021 13:49, Marc Zyngier wrote: On Wed, 24 Mar 2021 09:39:13 +, Suzuki K Poulose wrote: On 23/03/2021 18:21, Catalin Marinas wrote: Hi Suzuki? On Tue, Mar 23, 2021 at 12:06:3

Re: [PATCH v5 05/19] arm64: Add support for trace synchronization barrier

2021-03-24 Thread Marc Zyngier
On Wed, 24 Mar 2021 15:51:14 +, Suzuki K Poulose wrote: > > On 24/03/2021 13:49, Marc Zyngier wrote: > > On Wed, 24 Mar 2021 09:39:13 +, > > Suzuki K Poulose wrote: > >> > >> On 23/03/2021 18:21, Catalin Marinas wrote: > >>> Hi Suzuki? > >>> > >>> On Tue, Mar 23, 2021 at 12:06:33PM +00

Re: [PATCH v5 05/19] arm64: Add support for trace synchronization barrier

2021-03-24 Thread Suzuki K Poulose
On 24/03/2021 13:49, Marc Zyngier wrote: On Wed, 24 Mar 2021 09:39:13 +, Suzuki K Poulose wrote: On 23/03/2021 18:21, Catalin Marinas wrote: Hi Suzuki? On Tue, Mar 23, 2021 at 12:06:33PM +, Suzuki K Poulose wrote: tsb csync synchronizes the trace operation of instructions. The instr

Re: [PATCH v5 05/19] arm64: Add support for trace synchronization barrier

2021-03-24 Thread Marc Zyngier
On Wed, 24 Mar 2021 09:39:13 +, Suzuki K Poulose wrote: > > On 23/03/2021 18:21, Catalin Marinas wrote: > > Hi Suzuki? > > > > On Tue, Mar 23, 2021 at 12:06:33PM +, Suzuki K Poulose wrote: > >> tsb csync synchronizes the trace operation of instructions. > >> The instruction is a nop when

Re: [PATCH v5 05/19] arm64: Add support for trace synchronization barrier

2021-03-24 Thread Suzuki K Poulose
On 23/03/2021 18:21, Catalin Marinas wrote: Hi Suzuki? On Tue, Mar 23, 2021 at 12:06:33PM +, Suzuki K Poulose wrote: tsb csync synchronizes the trace operation of instructions. The instruction is a nop when FEAT_TRF is not implemented. Cc: Mathieu Poirier Cc: Mike Leach Cc: Catalin Marin

Re: [PATCH v5 05/19] arm64: Add support for trace synchronization barrier

2021-03-23 Thread Catalin Marinas
Hi Suzuki? On Tue, Mar 23, 2021 at 12:06:33PM +, Suzuki K Poulose wrote: > tsb csync synchronizes the trace operation of instructions. > The instruction is a nop when FEAT_TRF is not implemented. > > Cc: Mathieu Poirier > Cc: Mike Leach > Cc: Catalin Marinas > Cc: Will Deacon > Signed-off

[PATCH v5 05/19] arm64: Add support for trace synchronization barrier

2021-03-23 Thread Suzuki K Poulose
tsb csync synchronizes the trace operation of instructions. The instruction is a nop when FEAT_TRF is not implemented. Cc: Mathieu Poirier Cc: Mike Leach Cc: Catalin Marinas Cc: Will Deacon Signed-off-by: Suzuki K Poulose --- arch/arm64/include/asm/barrier.h | 1 + 1 file changed, 1 insertio