diff mbox series

[V2,3/5] riscv: smp: Support for 64bit hartid

Message ID 20220526101131.2340729-4-sunilvl@ventanamicro.com
State Superseded
Headers show
Series Support for 64bit hartid on RV64 platforms | expand

Commit Message

Sunil V L May 26, 2022, 10:11 a.m. UTC
The hartid can be a 64bit value on RV64 platforms. This patch
modifies the hartid parameter in riscv_hartid_to_cpuid() as
unsigned long so that it can hold 64bit value on RV64 platforms.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
---
 arch/riscv/include/asm/smp.h | 4 ++--
 arch/riscv/kernel/smp.c      | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

Comments

Atish Patra May 26, 2022, 10:57 p.m. UTC | #1
On Thu, May 26, 2022 at 3:12 AM Sunil V L <sunilvl@ventanamicro.com> wrote:
>
> The hartid can be a 64bit value on RV64 platforms. This patch
> modifies the hartid parameter in riscv_hartid_to_cpuid() as
> unsigned long so that it can hold 64bit value on RV64 platforms.
>
> Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
> Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
> ---
>  arch/riscv/include/asm/smp.h | 4 ++--
>  arch/riscv/kernel/smp.c      | 4 ++--
>  2 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/arch/riscv/include/asm/smp.h b/arch/riscv/include/asm/smp.h
> index 23170c933d73..d3443be7eedc 100644
> --- a/arch/riscv/include/asm/smp.h
> +++ b/arch/riscv/include/asm/smp.h
> @@ -42,7 +42,7 @@ void arch_send_call_function_ipi_mask(struct cpumask *mask);
>  /* Hook for the generic smp_call_function_single() routine. */
>  void arch_send_call_function_single_ipi(int cpu);
>
> -int riscv_hartid_to_cpuid(int hartid);
> +int riscv_hartid_to_cpuid(unsigned long hartid);
>
>  /* Set custom IPI operations */
>  void riscv_set_ipi_ops(const struct riscv_ipi_ops *ops);
> @@ -70,7 +70,7 @@ static inline void show_ipi_stats(struct seq_file *p, int prec)
>  {
>  }
>
> -static inline int riscv_hartid_to_cpuid(int hartid)
> +static inline int riscv_hartid_to_cpuid(unsigned long hartid)
>  {
>         if (hartid == boot_cpu_hartid)
>                 return 0;
> diff --git a/arch/riscv/kernel/smp.c b/arch/riscv/kernel/smp.c
> index b5d30ea92292..018e7dc45df6 100644
> --- a/arch/riscv/kernel/smp.c
> +++ b/arch/riscv/kernel/smp.c
> @@ -47,7 +47,7 @@ static struct {
>         unsigned long bits ____cacheline_aligned;
>  } ipi_data[NR_CPUS] __cacheline_aligned;
>
> -int riscv_hartid_to_cpuid(int hartid)
> +int riscv_hartid_to_cpuid(unsigned long hartid)
>  {
>         int i;
>
> @@ -55,7 +55,7 @@ int riscv_hartid_to_cpuid(int hartid)
>                 if (cpuid_to_hartid_map(i) == hartid)
>                         return i;
>
> -       pr_err("Couldn't find cpu id for hartid [%d]\n", hartid);
> +       pr_err("Couldn't find cpu id for hartid [%lu]\n", hartid);
>         return -ENOENT;
>  }
>
> --
> 2.25.1
>


Reviewed-by: Atish Patra <atishp@rivosinc.com>
diff mbox series

Patch

diff --git a/arch/riscv/include/asm/smp.h b/arch/riscv/include/asm/smp.h
index 23170c933d73..d3443be7eedc 100644
--- a/arch/riscv/include/asm/smp.h
+++ b/arch/riscv/include/asm/smp.h
@@ -42,7 +42,7 @@  void arch_send_call_function_ipi_mask(struct cpumask *mask);
 /* Hook for the generic smp_call_function_single() routine. */
 void arch_send_call_function_single_ipi(int cpu);
 
-int riscv_hartid_to_cpuid(int hartid);
+int riscv_hartid_to_cpuid(unsigned long hartid);
 
 /* Set custom IPI operations */
 void riscv_set_ipi_ops(const struct riscv_ipi_ops *ops);
@@ -70,7 +70,7 @@  static inline void show_ipi_stats(struct seq_file *p, int prec)
 {
 }
 
-static inline int riscv_hartid_to_cpuid(int hartid)
+static inline int riscv_hartid_to_cpuid(unsigned long hartid)
 {
 	if (hartid == boot_cpu_hartid)
 		return 0;
diff --git a/arch/riscv/kernel/smp.c b/arch/riscv/kernel/smp.c
index b5d30ea92292..018e7dc45df6 100644
--- a/arch/riscv/kernel/smp.c
+++ b/arch/riscv/kernel/smp.c
@@ -47,7 +47,7 @@  static struct {
 	unsigned long bits ____cacheline_aligned;
 } ipi_data[NR_CPUS] __cacheline_aligned;
 
-int riscv_hartid_to_cpuid(int hartid)
+int riscv_hartid_to_cpuid(unsigned long hartid)
 {
 	int i;
 
@@ -55,7 +55,7 @@  int riscv_hartid_to_cpuid(int hartid)
 		if (cpuid_to_hartid_map(i) == hartid)
 			return i;
 
-	pr_err("Couldn't find cpu id for hartid [%d]\n", hartid);
+	pr_err("Couldn't find cpu id for hartid [%lu]\n", hartid);
 	return -ENOENT;
 }