Unverified Commit decde1fa authored by Charlie Jenkins's avatar Charlie Jenkins Committed by Palmer Dabbelt
Browse files

cpumask: Add assign cpu 



Standardize an assign_cpu function for cpumasks.

Signed-off-by: default avatarCharlie Jenkins <charlie@rivosinc.com>
Link: https://lore.kernel.org/r/20240312-fencei-v13-4-4b6bdc2bbf32@rivosinc.com


Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent 6a08e470

arch/riscv/mm/cacheflush.c

+1 −1
Original line number Diff line number Diff line
@@ -170,7 +170,7 @@ static void set_icache_stale_mask(void) 
	stale_cpu = cpumask_test_cpu(smp_processor_id(), mask);



	cpumask_setall(mask);

	assign_bit(cpumask_check(smp_processor_id()), cpumask_bits(mask), stale_cpu);

	cpumask_assign_cpu(smp_processor_id(), mask, stale_cpu);

}

#endif

include/linux/cpumask.h

+16 −0
Original line number Diff line number Diff line
@@ -492,6 +492,22 @@ static __always_inline void __cpumask_clear_cpu(int cpu, struct cpumask *dstp) 
	__clear_bit(cpumask_check(cpu), cpumask_bits(dstp));

}



/**

 * cpumask_assign_cpu - assign a cpu in a cpumask

 * @cpu: cpu number (< nr_cpu_ids)

 * @dstp: the cpumask pointer

 * @bool: the value to assign

 */

static __always_inline void cpumask_assign_cpu(int cpu, struct cpumask *dstp, bool value)

{

	assign_bit(cpumask_check(cpu), cpumask_bits(dstp), value);

}



static __always_inline void __cpumask_assign_cpu(int cpu, struct cpumask *dstp, bool value)

{

	__assign_bit(cpumask_check(cpu), cpumask_bits(dstp), value);

}



/**

 * cpumask_test_cpu - test for a cpu in a cpumask

 * @cpu: cpu number (< nr_cpu_ids)