[v1 PATCH 1/4] RISC-V: Add RISC-V specific arch_match_cpu_phys_id

From: Atish Patra <atish.patra@wdc.com>
To: linux-riscv@lists.infradead.org
Cc: Atish Patra <atish.patra@wdc.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Andreas Schwab <schwab@suse.de>, Anup Patel <anup@brainfault.org>,
	Dmitriy Cherkasov <dmitriy@oss-tech.org>,
	Johan Hovold <johan@kernel.org>,
	linux-kernel@vger.kernel.org, Palmer Dabbelt <palmer@sifive.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Damien Le Moal <Damien.LeMoal@wdc.com>,
	Anup Patel <Anup.Patel@wdc.com>
Subject: [v1 PATCH 1/4] RISC-V: Add RISC-V specific arch_match_cpu_phys_id
Date: Tue, 19 Mar 2019 15:20:25 -0700	[thread overview]
Message-ID: <20190319222028.4293-1-atish.patra@wdc.com> (raw)

OF/DT core has a hook for architecture specific logical cpuid to hartid
mapping. By implementing this, we can pass the logical cpu id to cpu
node parsing functions.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
---
 arch/riscv/kernel/smp.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/riscv/kernel/smp.c b/arch/riscv/kernel/smp.c
index 0c41d07e..94db7266 100644
--- a/arch/riscv/kernel/smp.c
+++ b/arch/riscv/kernel/smp.c
@@ -70,6 +70,11 @@ void riscv_cpuid_to_hartid_mask(const struct cpumask *in, struct cpumask *out)
 	for_each_cpu(cpu, in)
 		cpumask_set_cpu(cpuid_to_hartid_map(cpu), out);
 }
+
+bool arch_match_cpu_phys_id(int cpu, u64 phys_id)
+{
+	return phys_id == cpuid_to_hartid_map(cpu);
+}
 /* Unsupported */
 int setup_profiling_timer(unsigned int multiplier)
 {
-- 
2.21.0

