Re: [PATCH v2 4/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM

[PATCH v2 0/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM · Mike Rapoport <rppt@kernel.org> · 2023-01-29
[PATCH v2 1/4] arm: include asm-generic/memory_model.h from page.h rather than memory.h · Mike Rapoport <rppt@kernel.org> · 2023-01-29
Re: [PATCH v2 1/4] arm: include asm-generic/memory_model.h from page.h rather than memory.h · David Hildenbrand <hidden> · 2023-02-03
[PATCH v2 2/4] m68k: use asm-generic/memory_model.h for both MMU and !MMU · Mike Rapoport <rppt@kernel.org> · 2023-01-29
Re: [PATCH v2 2/4] m68k: use asm-generic/memory_model.h for both MMU and !MMU · David Hildenbrand <hidden> · 2023-02-03
Re: [PATCH v2 2/4] m68k: use asm-generic/memory_model.h for both MMU and !MMU · Guenter Roeck <linux@roeck-us.net> · 2023-02-12
Re: [PATCH v2 2/4] m68k: use asm-generic/memory_model.h for both MMU and !MMU · Mike Rapoport <rppt@kernel.org> · 2023-02-13
Re: [PATCH v2 2/4] m68k: use asm-generic/memory_model.h for both MMU and !MMU · Guenter Roeck <linux@roeck-us.net> · 2023-02-13
[PATCH v2 3/4] mips: drop definition of pfn_valid() for DISCONTIGMEM · Mike Rapoport <rppt@kernel.org> · 2023-01-29
Re: [PATCH v2 3/4] mips: drop definition of pfn_valid() for DISCONTIGMEM · David Hildenbrand <hidden> · 2023-02-03
[PATCH v2 4/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM · Mike Rapoport <rppt@kernel.org> · 2023-01-29
Re: [PATCH v2 4/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM · Michael Ellerman <mpe@ellerman.id.au> · 2023-01-30
Re: [PATCH v2 4/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM · Conor Dooley <conor@kernel.org> · 2023-01-31
Re: [PATCH v2 4/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM · Mike Rapoport <rppt@kernel.org> · 2023-01-31
Re: [PATCH v2 4/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM · Conor Dooley <conor@kernel.org> · 2023-01-31
Re: [PATCH v2 4/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM · David Hildenbrand <hidden> · 2023-02-03
Re: [PATCH v2 4/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM · Guenter Roeck <linux@roeck-us.net> · 2023-02-12
Re: [PATCH v2 4/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM · Mike Rapoport <rppt@kernel.org> · 2023-02-12
Re: [PATCH v2 4/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM · Guenter Roeck <linux@roeck-us.net> · 2023-02-12
Re: [PATCH v2 4/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM · Mike Rapoport <rppt@kernel.org> · 2023-02-13
Re: [PATCH v2 4/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM · Guenter Roeck <linux@roeck-us.net> · 2023-02-13
Re: [PATCH v2 4/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM · Mike Rapoport <rppt@kernel.org> · 2023-02-13

From: Mike Rapoport <rppt@kernel.org>
Date: 2023-02-12 16:26:38
Also in: linux-alpha, linux-arch, linux-arm-kernel, linux-m68k, linux-mips, linux-mm, linux-riscv, linux-sh, linux-um, lkml, loongarch, sparclinux

Hi Guenter,

On Sun, Feb 12, 2023 at 08:13:20AM -0800, Guenter Roeck wrote:

On Sun, Jan 29, 2023 at 02:42:35PM +0200, Mike Rapoport wrote:

quoted

From: "Mike Rapoport (IBM)" <rppt@kernel.org>

Every architecture that supports FLATMEM memory model defines its own
version of pfn_valid() that essentially compares a pfn to max_mapnr.

Use mips/powerpc version implemented as static inline as a generic
implementation of pfn_valid() and drop its per-architecture definitions.

With this patch in the tree, sh4 and sh4eb qemu emulations no longer boot.
Reverting this patch fixes the problem.

 
Can you please test with only partial revert for arch/sh?

Guenter

-- 
Sincerely yours,
Mike.

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