On 21/09/2023 14:46, Peter Lafreniere wrote:
On Thu, Sep 21, 2023 at 05:28, anton.iva...@cambridgegreys.com wrote:
From: Anton Ivanov anton.iva...@cambridgegreys.com
Preemption requires saving/restoring FPU state. This patch
adds support for it using GCC intrinsics.
Signed-off-by: Anton Iv
On 21/09/2023 14:46, Peter Lafreniere wrote:
On Thu, Sep 21, 2023 at 05:28, anton.iva...@cambridgegreys.com wrote:
From: Anton Ivanov anton.iva...@cambridgegreys.com
Preemption requires saving/restoring FPU state. This patch
adds support for it using GCC intrinsics.
Signed-off-by: Anton Ivan
On Thu, Sep 21, 2023 at 05:28, anton.iva...@cambridgegreys.com wrote:
>
> From: Anton Ivanov anton.iva...@cambridgegreys.com
>
>
> Preemption requires saving/restoring FPU state. This patch
> adds support for it using GCC intrinsics.
>
> Signed-off-by: Anton Ivanov anton.iva...@cambridgegreys.c
On 21/09/2023 10:42, Anton Ivanov wrote:
On 21/09/2023 10:35, Johannes Berg wrote:
Hi,
Haven't chimed in here before, but thanks for looking at this! I
actually really wanted at least the things you get for debug from this
in the past, so much appreciated.
I think I actually tried a simple
On 21/09/2023 10:35, Johannes Berg wrote:
Hi,
Haven't chimed in here before, but thanks for looking at this! I
actually really wanted at least the things you get for debug from this
in the past, so much appreciated.
I think I actually tried a simpler approach and it kind of even worked,
but
Hi,
Haven't chimed in here before, but thanks for looking at this! I
actually really wanted at least the things you get for debug from this
in the past, so much appreciated.
I think I actually tried a simpler approach and it kind of even worked,
but my userspace likely has very little FPU usage.
On 21/09/2023 10:28, anton.iva...@cambridgegreys.com wrote:
From: Anton Ivanov
Preemption requires saving/restoring FPU state. This patch
adds support for it using GCC intrinsics.
Marginally slower than before
3m 03s for find /usr -type f -exec cat {} > /dev/null \;
Still, better than th
From: Anton Ivanov
Preemption requires saving/restoring FPU state. This patch
adds support for it using GCC intrinsics.
Signed-off-by: Anton Ivanov
---
arch/um/Kconfig | 1 -
arch/um/Makefile| 3 +-
arch/um/include/asm/fpu/api.h | 4
