MIPS: MT: Remove unused MT single-threaded cache flush code (eb75ecb1) · Commits · 戴 / test

Commit ("MIPS: Remove a temporary hack for debugging cache flushes in SMTC configuration") removed an ugly hack that allowed cache flushing to be performed single-threaded, something which should not be necessary outside of debug sessions performed long ago. Whilst the hack was removed from the cache flush code itself, the mt_protdflush & mt_protiflush variables were left behind along with code providing the protdflush & protiflush command line arguments. The mt_cflush_lockdown() & mt_cflush_release() functions were also left behind but are now entirely unused. Remove all the unused code to complete the removal of the MT ASE single-threaded cache flush hack. Signed-off-by:

Paul Burton <paul.burton@mips.com>

arch/mips/kernel/mips-mt.c

+0 −20

Original line number	Diff line number	Diff line
		@@ -155,25 +155,9 @@ static int __init config7_set(char *str)
		__setup("config7=", config7_set);

		/* Experimental cache flush control parameters that should go away some day */
		int mt_protiflush;
		int mt_protdflush;
		int mt_n_iflushes = 1;
		int mt_n_dflushes = 1;

		static int __init set_protiflush(char *s)
		{
		mt_protiflush = 1;
		return 1;
		}
		__setup("protiflush", set_protiflush);

		static int __init set_protdflush(char *s)
		{
		mt_protdflush = 1;
		return 1;
		}
		__setup("protdflush", set_protdflush);

		static int __init niflush(char *s)
		{
		get_option(&s, &mt_n_iflushes);
		@@ -233,10 +217,6 @@ void mips_mt_set_cpuoptions(void)
		}

		/* Report Cache management debug options */
		if (mt_protiflush)
		printk("I-cache flushes single-threaded\n");
		if (mt_protdflush)
		printk("D-cache flushes single-threaded\n");
		if (mt_n_iflushes != 1)
		printk("I-Cache Flushes Repeated %d times\n", mt_n_iflushes);
		if (mt_n_dflushes != 1)

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