Commit d73b73f5 authored by Vineet Gupta's avatar Vineet Gupta
Browse files

ARC: SMP: No need for CONFIG_ARC_IPI_DBG 



This was more relevant during SMP bringup.

The warning for bogus msg better be visible always.

Signed-off-by: default avatarVineet Gupta <vgupta@synopsys.com>
parent 3dea30ca

arch/arc/Kconfig

+0 −8
Original line number Diff line number Diff line
@@ -532,14 +532,6 @@ config ARC_DBG_TLB_MISS_COUNT 
	  Counts number of I and D TLB Misses and exports them via Debugfs

	  The counters can be cleared via Debugfs as well



if SMP



config ARC_IPI_DBG

	bool "Debug Inter Core interrupts"

	default n



endif



endif



config ARC_UBOOT_SUPPORT

arch/arc/kernel/mcip.c

+1 −8
Original line number Diff line number Diff line
@@ -65,7 +65,6 @@ static void mcip_ipi_clear(int irq) 
{

	unsigned int cpu, c;

	unsigned long flags;

	unsigned int __maybe_unused copy;



	if (unlikely(irq == SOFTIRQ_IRQ)) {

		arc_softirq_clear(irq);
@@ -77,7 +76,7 @@ static void mcip_ipi_clear(int irq) 
	/* Who sent the IPI */

	__mcip_cmd(CMD_INTRPT_CHECK_SOURCE, 0);



	copy = cpu = read_aux_reg(ARC_REG_MCIP_READBACK);	/* 1,2,4,8... */

	cpu = read_aux_reg(ARC_REG_MCIP_READBACK);	/* 1,2,4,8... */



	/*

	 * In rare case, multiple concurrent IPIs sent to same target can
@@ -91,12 +90,6 @@ static void mcip_ipi_clear(int irq) 
	} while (cpu);



	raw_spin_unlock_irqrestore(&mcip_lock, flags);



#ifdef CONFIG_ARC_IPI_DBG

	if (c != __ffs(copy))

		pr_info("IPIs from %x coalesced to %x\n",

			copy, raw_smp_processor_id());

#endif

}



static void mcip_probe_n_setup(void)

arch/arc/kernel/smp.c

+0 −3
Original line number Diff line number Diff line
@@ -336,11 +336,8 @@ irqreturn_t do_IPI(int irq, void *dev_id) 
		int rc;



		rc = __do_IPI(msg);

#ifdef CONFIG_ARC_IPI_DBG

		/* IPI received but no valid @msg */

		if (rc)

			pr_info("IPI with bogus msg %ld in %ld\n", msg, copy);

#endif

		pending &= ~(1U << msg);

	} while (pending);