[PATCH v3 13/14] asm-generic: remove pgtable-nop4d-hack.h

From: Mike Rapoport <rppt@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Arnd Bergmann <arnd@arndb.de>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Brian Cain <bcain@codeaurora.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Christophe Leroy <christophe.leroy@c-s.fr>,
	Fenghua Yu <fenghua.yu@intel.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Guan Xuetao <gxt@pku.edu.cn>, James Morse <james.morse@arm.com>,
	Jonas Bonn <jonas@southpole.se>,
	Julien Thierry <julien.thierry.kdev@gmail.com>,
	Ley Foon Tan <ley.foon.tan@intel.com>,
	Marc Zyngier <maz@kernel.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Paul Mackerras <paulus@samba.org>, Rich Felker <dalias@libc.org>,
	Russell King <linux@armlinux.org.uk>,
	Stafford Horne <shorne@gmail.com>,
	Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Tony Luck <tony.luck@intel.com>, Will Deacon <will@kernel.org>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	kvmarm@lists.cs.columbia.edu, kvm-ppc@vger.kernel.org,
	linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
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	openrisc@lists.librecores.org,
	uclinux-h8-devel@lists.sourceforge.jp,
	Mike Rapoport <rppt@kernel.org>,
	Mike Rapoport <rppt@linux.ibm.com>
Subject: [PATCH v3 13/14] asm-generic: remove pgtable-nop4d-hack.h
Date: Thu, 27 Feb 2020 10:46:07 +0200	[thread overview]
Message-ID: <20200227084608.18223-14-rppt@kernel.org> (raw)
In-Reply-To: <20200227084608.18223-1-rppt@kernel.org>

From: Mike Rapoport <rppt@linux.ibm.com>

No architecture defines __ARCH_USE_5LEVEL_HACK and therefore
pgtable-nop4d-hack.h will be never actually included.

Remove it.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
 include/asm-generic/pgtable-nop4d-hack.h | 64 ------------------------
 include/asm-generic/pgtable-nopud.h      |  4 --
 2 files changed, 68 deletions(-)
 delete mode 100644 include/asm-generic/pgtable-nop4d-hack.h

diff --git a/include/asm-generic/pgtable-nop4d-hack.h b/include/asm-generic/pgtable-nop4d-hack.h
deleted file mode 100644
index 829bdb0d6327..000000000000
--- a/include/asm-generic/pgtable-nop4d-hack.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _PGTABLE_NOP4D_HACK_H
-#define _PGTABLE_NOP4D_HACK_H
-
-#ifndef __ASSEMBLY__
-#include <asm-generic/5level-fixup.h>
-
-#define __PAGETABLE_PUD_FOLDED 1
-
-/*
- * Having the pud type consist of a pgd gets the size right, and allows
- * us to conceptually access the pgd entry that this pud is folded into
- * without casting.
- */
-typedef struct { pgd_t pgd; } pud_t;
-
-#define PUD_SHIFT	PGDIR_SHIFT
-#define PTRS_PER_PUD	1
-#define PUD_SIZE	(1UL << PUD_SHIFT)
-#define PUD_MASK	(~(PUD_SIZE-1))
-
-/*
- * The "pgd_xxx()" functions here are trivial for a folded two-level
- * setup: the pud is never bad, and a pud always exists (as it's folded
- * into the pgd entry)
- */
-static inline int pgd_none(pgd_t pgd)		{ return 0; }
-static inline int pgd_bad(pgd_t pgd)		{ return 0; }
-static inline int pgd_present(pgd_t pgd)	{ return 1; }
-static inline void pgd_clear(pgd_t *pgd)	{ }
-#define pud_ERROR(pud)				(pgd_ERROR((pud).pgd))
-
-#define pgd_populate(mm, pgd, pud)		do { } while (0)
-#define pgd_populate_safe(mm, pgd, pud)		do { } while (0)
-/*
- * (puds are folded into pgds so this doesn't get actually called,
- * but the define is needed for a generic inline function.)
- */
-#define set_pgd(pgdptr, pgdval)	set_pud((pud_t *)(pgdptr), (pud_t) { pgdval })
-
-static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address)
-{
-	return (pud_t *)pgd;
-}
-
-#define pud_val(x)				(pgd_val((x).pgd))
-#define __pud(x)				((pud_t) { __pgd(x) })
-
-#define pgd_page(pgd)				(pud_page((pud_t){ pgd }))
-#define pgd_page_vaddr(pgd)			(pud_page_vaddr((pud_t){ pgd }))
-
-/*
- * allocating and freeing a pud is trivial: the 1-entry pud is
- * inside the pgd, so has no extra memory associated with it.
- */
-#define pud_alloc_one(mm, address)		NULL
-#define pud_free(mm, x)				do { } while (0)
-#define __pud_free_tlb(tlb, x, a)		do { } while (0)
-
-#undef  pud_addr_end
-#define pud_addr_end(addr, end)			(end)
-
-#endif /* __ASSEMBLY__ */
-#endif /* _PGTABLE_NOP4D_HACK_H */
diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h
index d3776cb494c0..ad05c1684bfc 100644
--- a/include/asm-generic/pgtable-nopud.h
+++ b/include/asm-generic/pgtable-nopud.h
@@ -4,9 +4,6 @@
 
 #ifndef __ASSEMBLY__
 
-#ifdef __ARCH_USE_5LEVEL_HACK
-#include <asm-generic/pgtable-nop4d-hack.h>
-#else
 #include <asm-generic/pgtable-nop4d.h>
 
 #define __PAGETABLE_PUD_FOLDED 1
@@ -65,5 +62,4 @@ static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address)
 #define pud_addr_end(addr, end)			(end)
 
 #endif /* __ASSEMBLY__ */
-#endif /* !__ARCH_USE_5LEVEL_HACK */
 #endif /* _PGTABLE_NOPUD_H */
-- 
2.24.0


