On Thu, Apr 24, 2025 at 02:35:02PM +0200, Clément Léger wrote:
On 24/04/2025 13:06, Andrew Jones wrote:
On Thu, Apr 17, 2025 at 02:19:51PM +0200, Clément Léger wrote:
Add FWFT extension calls. This will be ratified in SBI V3.0 hence, it is provided as a separate commit that can be left out if needed.
Signed-off-by: Clément Léger cleger@rivosinc.com
arch/riscv/kernel/sbi.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/arch/riscv/kernel/sbi.c b/arch/riscv/kernel/sbi.c index 379981c2bb21..7b062189b184 100644 --- a/arch/riscv/kernel/sbi.c +++ b/arch/riscv/kernel/sbi.c @@ -299,6 +299,8 @@ static int __sbi_rfence_v02(int fid, const struct cpumask *cpu_mask, return 0; } +static bool sbi_fwft_supported;
At some point we may want an SBI extension bitmap, but this is only the second SBI extension supported boolean that I'm aware of, so I guess we're still OK for now.
That seems reasonable to have a bitmap rather than duplicating *ext*_supported. If that's something that bothers you, I can take care of it and use a bitmap. SSE will also have a sse_supported boolean but in it's own driver file though.
Up to you. We can always do it later.
Thanks, drew