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Commit 47e4d851 authored by Martin Schwidefsky's avatar Martin Schwidefsky
Browse files

s390/mm: merge local / non-local IDTE helper 



Merge the __p[m|u]xdp_idte and __p[m|u]dp_idte_local functions into a
single __p[m|u]dp_idte function with an additional parameter.

Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 34eeaf37

arch/s390/include/asm/pgtable.h

+12 −32
Original line number Diff line number Diff line
@@ -1235,53 +1235,33 @@ static inline void __pmdp_csp(pmd_t *pmdp) 
	    pmd_val(*pmdp) | _SEGMENT_ENTRY_INVALID);

}



static inline void __pmdp_idte(unsigned long address, pmd_t *pmdp)

{

	unsigned long sto;



	sto = (unsigned long) pmdp - pmd_index(address) * sizeof(pmd_t);

	asm volatile(

		"	.insn	rrf,0xb98e0000,%2,%3,0,0"

		: "=m" (*pmdp)

		: "m" (*pmdp), "a" (sto), "a" ((address & HPAGE_MASK))

		: "cc" );

}



static inline void __pudp_idte(unsigned long address, pud_t *pudp)

{

	unsigned long r3o;



	r3o = (unsigned long) pudp - pud_index(address) * sizeof(pud_t);

	r3o |= _ASCE_TYPE_REGION3;

	asm volatile(

		"	.insn	rrf,0xb98e0000,%2,%3,0,0"

		: "=m" (*pudp)

		: "m" (*pudp), "a" (r3o), "a" ((address & PUD_MASK))

		: "cc");

}

#define IDTE_GLOBAL	0

#define IDTE_LOCAL	1



static inline void __pmdp_idte_local(unsigned long address, pmd_t *pmdp)

static inline void __pmdp_idte(unsigned long address, pmd_t *pmdp, int local)

{

	unsigned long sto;



	sto = (unsigned long) pmdp - pmd_index(address) * sizeof(pmd_t);

	asm volatile(

		"	.insn	rrf,0xb98e0000,%2,%3,0,1"

		: "=m" (*pmdp)

		: "m" (*pmdp), "a" (sto), "a" ((address & HPAGE_MASK))

		"	.insn	rrf,0xb98e0000,%[r1],%[r2],0,%[m4]"

		: "+m" (*pmdp)

		: [r1] "a" (sto), [r2] "a" ((address & HPAGE_MASK)),

		  [m4] "i" (local)

		: "cc" );

}



static inline void __pudp_idte_local(unsigned long address, pud_t *pudp)

static inline void __pudp_idte(unsigned long address, pud_t *pudp, int local)

{

	unsigned long r3o;



	r3o = (unsigned long) pudp - pud_index(address) * sizeof(pud_t);

	r3o |= _ASCE_TYPE_REGION3;

	asm volatile(

		"	.insn	rrf,0xb98e0000,%2,%3,0,1"

		: "=m" (*pudp)

		: "m" (*pudp), "a" (r3o), "a" ((address & PUD_MASK))

		"	.insn	rrf,0xb98e0000,%[r1],%[r2],0,%[m4]"

		: "+m" (*pudp)

		: [r1] "a" (r3o), [r2] "a" ((address & PUD_MASK)),

		  [m4] "i" (local)

		: "cc");

}

arch/s390/mm/pgtable.c

+5 −5
Original line number Diff line number Diff line
@@ -301,9 +301,9 @@ static inline pmd_t pmdp_flush_direct(struct mm_struct *mm, 
	atomic_inc(&mm->context.flush_count);

	if (MACHINE_HAS_TLB_LC &&

	    cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id())))

		__pmdp_idte_local(addr, pmdp);

		__pmdp_idte(addr, pmdp, IDTE_LOCAL);

	else

		__pmdp_idte(addr, pmdp);

		__pmdp_idte(addr, pmdp, IDTE_GLOBAL);

	atomic_dec(&mm->context.flush_count);

	return old;

}
@@ -322,7 +322,7 @@ static inline pmd_t pmdp_flush_lazy(struct mm_struct *mm, 
		pmd_val(*pmdp) |= _SEGMENT_ENTRY_INVALID;

		mm->context.flush_mm = 1;

	} else if (MACHINE_HAS_IDTE)

		__pmdp_idte(addr, pmdp);

		__pmdp_idte(addr, pmdp, IDTE_GLOBAL);

	else

		__pmdp_csp(pmdp);

	atomic_dec(&mm->context.flush_count);
@@ -374,9 +374,9 @@ static inline pud_t pudp_flush_direct(struct mm_struct *mm, 
	atomic_inc(&mm->context.flush_count);

	if (MACHINE_HAS_TLB_LC &&

	    cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id())))

		__pudp_idte_local(addr, pudp);

		__pudp_idte(addr, pudp, IDTE_LOCAL);

	else

		__pudp_idte(addr, pudp);

		__pudp_idte(addr, pudp, IDTE_GLOBAL);

	atomic_dec(&mm->context.flush_count);

	return old;

}