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[1/5] riscv: cpu_ops_sbi: Support for 64bit hartid

Message ID 20220525151106.2176147-2-sunilvl@ventanamicro.com (mailing list archive)
State New, archived
Headers show
Series Support for 64bit hartid on RV64 platforms | expand

Commit Message

Sunil V L May 25, 2022, 3:11 p.m. UTC 
The hartid can be a 64bit value on RV64 platforms. This patch modifies
the hartid variable type to unsigned long so that it can hold 64bit
value on RV64 platforms.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
---
 arch/riscv/kernel/cpu_ops_sbi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Heinrich Schuchardt May 25, 2022, 3:17 p.m. UTC | #1 
On 5/25/22 17:11, Sunil V L wrote:
> The hartid can be a 64bit value on RV64 platforms. This patch modifies
> the hartid variable type to 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/kernel/cpu_ops_sbi.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/riscv/kernel/cpu_ops_sbi.c b/arch/riscv/kernel/cpu_ops_sbi.c
> index 4f5a6f84e2a4..efa0f0816634 100644
> --- a/arch/riscv/kernel/cpu_ops_sbi.c
> +++ b/arch/riscv/kernel/cpu_ops_sbi.c
> @@ -65,7 +65,7 @@ static int sbi_hsm_hart_get_status(unsigned long hartid)
>   static int sbi_cpu_start(unsigned int cpuid, struct task_struct *tidle)
>   {
>   	unsigned long boot_addr = __pa_symbol(secondary_start_sbi);
> -	int hartid = cpuid_to_hartid_map(cpuid);
> +	unsigned long hartid = cpuid_to_hartid_map(cpuid);
>   	unsigned long hsm_data;
>   	struct sbi_hart_boot_data *bdata = &per_cpu(boot_data, cpuid);
>   
> @@ -107,7 +107,7 @@ static void sbi_cpu_stop(void)
>   static int sbi_cpu_is_stopped(unsigned int cpuid)
>   {
>   	int rc;
> -	int hartid = cpuid_to_hartid_map(cpuid);
> +	unsigned long hartid = cpuid_to_hartid_map(cpuid);
>   
>   	rc = sbi_hsm_hart_get_status(hartid);
>
diff mbox series

Patch

diff --git a/arch/riscv/kernel/cpu_ops_sbi.c b/arch/riscv/kernel/cpu_ops_sbi.c
index 4f5a6f84e2a4..efa0f0816634 100644
--- a/arch/riscv/kernel/cpu_ops_sbi.c
+++ b/arch/riscv/kernel/cpu_ops_sbi.c
@@ -65,7 +65,7 @@  static int sbi_hsm_hart_get_status(unsigned long hartid)
 static int sbi_cpu_start(unsigned int cpuid, struct task_struct *tidle)
 {
 	unsigned long boot_addr = __pa_symbol(secondary_start_sbi);
-	int hartid = cpuid_to_hartid_map(cpuid);
+	unsigned long hartid = cpuid_to_hartid_map(cpuid);
 	unsigned long hsm_data;
 	struct sbi_hart_boot_data *bdata = &per_cpu(boot_data, cpuid);
 
@@ -107,7 +107,7 @@  static void sbi_cpu_stop(void)
 static int sbi_cpu_is_stopped(unsigned int cpuid)
 {
 	int rc;
-	int hartid = cpuid_to_hartid_map(cpuid);
+	unsigned long hartid = cpuid_to_hartid_map(cpuid);
 
 	rc = sbi_hsm_hart_get_status(hartid);