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Commit 666435bb authored by Michael Ellerman's avatar Michael Ellerman Committed by Benjamin Herrenschmidt
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powerpc: Deindentify identify_cpu() 



The for-loop body of identify_cpu() has gotten a little big, so move the
loop body logic into a separate function. No other changes.

Signed-off-by: default avatarMichael Ellerman <michael@ellerman.id.au>
Acked-by: default avatarDave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 1cdab55d

arch/powerpc/kernel/cputable.c

+64 −58
Original line number Diff line number Diff line
@@ -1785,22 +1785,15 @@ static struct cpu_spec __initdata cpu_specs[] = { 


static struct cpu_spec the_cpu_spec;



struct cpu_spec * __init identify_cpu(unsigned long offset, unsigned int pvr)

static void __init setup_cpu_spec(unsigned long offset, struct cpu_spec *s)

{

	struct cpu_spec *s = cpu_specs;

	struct cpu_spec *t = &the_cpu_spec;

	int i;



	s = PTRRELOC(s);

	t = PTRRELOC(t);



	for (i = 0; i < ARRAY_SIZE(cpu_specs); i++,s++)

		if ((pvr & s->pvr_mask) == s->pvr_value) {

	/*

			 * If we are overriding a previous value derived

			 * from the real PVR with a new value obtained

			 * using a logical PVR value, don't modify the

			 * performance monitor fields.

	 * If we are overriding a previous value derived from the real

	 * PVR with a new value obtained using a logical PVR value,

	 * don't modify the performance monitor fields.

	 */

	if (t->num_pmcs && !s->num_pmcs) {

		t->cpu_name = s->cpu_name;
@@ -1812,24 +1805,23 @@ struct cpu_spec * __init identify_cpu(unsigned long offset, unsigned int pvr) 
		t->cpu_restore = s->cpu_restore;

		t->platform = s->platform;

		/*

				 * If we have passed through this logic once

				 * before and have pulled the default case

				 * because the real PVR was not found inside

				 * cpu_specs[], then we are possibly running in

				 * compatibility mode. In that case, let the

				 * oprofiler know which set of compatibility

				 * counters to pull from by making sure the

				 * oprofile_cpu_type string is set to that of

				 * compatibility mode. If the oprofile_cpu_type

				 * already has a value, then we are possibly

				 * overriding a real PVR with a logical one, and,

				 * in that case, keep the current value for

		 * If we have passed through this logic once before and

		 * have pulled the default case because the real PVR was

		 * not found inside cpu_specs[], then we are possibly

		 * running in compatibility mode. In that case, let the

		 * oprofiler know which set of compatibility counters to

		 * pull from by making sure the oprofile_cpu_type string

		 * is set to that of compatibility mode. If the

		 * oprofile_cpu_type already has a value, then we are

		 * possibly overriding a real PVR with a logical one,

		 * and, in that case, keep the current value for

		 * oprofile_cpu_type.

		 */

		if (t->oprofile_cpu_type == NULL)

			t->oprofile_cpu_type = s->oprofile_cpu_type;

	} else

		*t = *s;



	*PTRRELOC(&cur_cpu_spec) = &the_cpu_spec;



	/*
@@ -1840,19 +1832,33 @@ struct cpu_spec * __init identify_cpu(unsigned long offset, unsigned int pvr) 
		*PTRRELOC(&powerpc_base_platform) = t->platform;



#if defined(CONFIG_PPC64) || defined(CONFIG_BOOKE)

			/* ppc64 and booke expect identify_cpu to also call

			 * setup_cpu for that processor. I will consolidate

			 * that at a later time, for now, just use #ifdef.

			 * we also don't need to PTRRELOC the function pointer

			 * on ppc64 and booke as we are running at 0 in real

			 * mode on ppc64 and reloc_offset is always 0 on booke.

	/* ppc64 and booke expect identify_cpu to also call setup_cpu for

	 * that processor. I will consolidate that at a later time, for now,

	 * just use #ifdef. We also don't need to PTRRELOC the function

	 * pointer on ppc64 and booke as we are running at 0 in real mode

	 * on ppc64 and reloc_offset is always 0 on booke.

	 */

	if (s->cpu_setup) {

		s->cpu_setup(offset, s);

	}

#endif /* CONFIG_PPC64 || CONFIG_BOOKE */

}



struct cpu_spec * __init identify_cpu(unsigned long offset, unsigned int pvr)

{

	struct cpu_spec *s = cpu_specs;

	int i;



	s = PTRRELOC(s);



	for (i = 0; i < ARRAY_SIZE(cpu_specs); i++,s++) {

		if ((pvr & s->pvr_mask) == s->pvr_value) {

			setup_cpu_spec(offset, s);

			return s;

		}

	}



	BUG();



	return NULL;

}