From nobody Fri Dec 19 19:20:04 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80959CD548D for ; Mon, 25 Sep 2023 18:33:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233162AbjIYSdV (ORCPT ); Mon, 25 Sep 2023 14:33:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59926 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233397AbjIYSdF (ORCPT ); Mon, 25 Sep 2023 14:33:05 -0400 Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7CA841AD for ; Mon, 25 Sep 2023 11:32:40 -0700 (PDT) Received: from localhost (mailhub3.si.c-s.fr [192.168.12.233]) by localhost (Postfix) with ESMTP id 4RvWgD1HVcz9v8v; Mon, 25 Sep 2023 20:31:52 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2VtD_PyQJK6s; Mon, 25 Sep 2023 20:31:52 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4RvWg11nGvz9v97; Mon, 25 Sep 2023 20:31:41 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 398D18B78D; Mon, 25 Sep 2023 20:31:41 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id XH8jzWk3oP77; Mon, 25 Sep 2023 20:31:41 +0200 (CEST) Received: from PO20335.IDSI0.si.c-s.fr (unknown [192.168.232.137]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 5EF5B8B78F; Mon, 25 Sep 2023 20:31:40 +0200 (CEST) Received: from PO20335.IDSI0.si.c-s.fr (localhost [127.0.0.1]) by PO20335.IDSI0.si.c-s.fr (8.17.1/8.16.1) with ESMTPS id 38PIVWDB1499159 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Mon, 25 Sep 2023 20:31:32 +0200 Received: (from chleroy@localhost) by PO20335.IDSI0.si.c-s.fr (8.17.1/8.17.1/Submit) id 38PIVW0B1499158; Mon, 25 Sep 2023 20:31:32 +0200 X-Authentication-Warning: PO20335.IDSI0.si.c-s.fr: chleroy set sender to christophe.leroy@csgroup.eu using -f From: Christophe Leroy To: Michael Ellerman , Nicholas Piggin Cc: Christophe Leroy , linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v2 07/37] powerpc: Untangle fixmap.h and pgtable.h and mmu.h Date: Mon, 25 Sep 2023 20:31:21 +0200 Message-ID: <5eba12392a018be28ad0a02ed844767b132589e7.1695659959.git.christophe.leroy@csgroup.eu> X-Mailer: git-send-email 2.41.0 In-Reply-To: References: MIME-Version: 1.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1695666674; l=6788; i=christophe.leroy@csgroup.eu; s=20211009; h=from:subject:message-id; bh=WbExHNjBqZE4k3Bo9AO6aayCzBM9n49FgTIGMLqVjjc=; b=KbInGWVfKSPe1AxCCj6D54i8PUHziWAuTyAP8j8YlgRk4MIm7YCxcX/fip4TaoenIREvZ6hnQ ai7qCOjO6vQBnsSH4pZTqg4IvDx9wyiEi398qgWl+i4XuawMmwWJQ5Y X-Developer-Key: i=christophe.leroy@csgroup.eu; a=ed25519; pk=HIzTzUj91asvincQGOFx6+ZF5AoUuP9GdOtQChs7Mm0= Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" fixmap.h need pgtable.h for [un]map_kernel_page() pgtable.h need fixmap.h for FIXADDR_TOP. Untangle the two files by moving FIXADDR_TOP into pgtable.h Also move VIRT_IMMR_BASE to fixmap.h to avoid fixmap.h in mmu.h Signed-off-by: Christophe Leroy --- v2: Add asm/fixmap.h to platforms/83xx/misc.c --- arch/powerpc/include/asm/book3s/32/pgtable.h | 9 ++++++++- arch/powerpc/include/asm/book3s/64/pgtable.h | 1 + arch/powerpc/include/asm/fixmap.h | 16 ++++------------ arch/powerpc/include/asm/nohash/32/mmu-8xx.h | 1 - arch/powerpc/include/asm/nohash/32/pgtable.h | 9 ++++++++- arch/powerpc/include/asm/nohash/64/pgtable.h | 1 + arch/powerpc/mm/init_32.c | 1 + arch/powerpc/mm/mem.c | 1 + arch/powerpc/mm/nohash/8xx.c | 2 ++ arch/powerpc/platforms/83xx/misc.c | 2 ++ arch/powerpc/platforms/8xx/cpm1.c | 1 + 11 files changed, 29 insertions(+), 15 deletions(-) diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/in= clude/asm/book3s/32/pgtable.h index 543c3691839b..45b69ae2631e 100644 --- a/arch/powerpc/include/asm/book3s/32/pgtable.h +++ b/arch/powerpc/include/asm/book3s/32/pgtable.h @@ -170,7 +170,14 @@ void unmap_kernel_page(unsigned long va); * value (for now) on others, from where we can start layout kernel * virtual space that goes below PKMAP and FIXMAP */ -#include + +#define FIXADDR_SIZE 0 +#ifdef CONFIG_KASAN +#include +#define FIXADDR_TOP (KASAN_SHADOW_START - PAGE_SIZE) +#else +#define FIXADDR_TOP ((unsigned long)(-PAGE_SIZE)) +#endif =20 /* * ioremap_bot starts at that address. Early ioremaps move down from there, diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/in= clude/asm/book3s/64/pgtable.h index 7c4ad1e03a49..dbd545e73161 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -316,6 +316,7 @@ extern unsigned long pci_io_base; #define IOREMAP_START (ioremap_bot) #define IOREMAP_END (KERN_IO_END - FIXADDR_SIZE) #define FIXADDR_SIZE SZ_32M +#define FIXADDR_TOP (IOREMAP_END + FIXADDR_SIZE) =20 #ifndef __ASSEMBLY__ =20 diff --git a/arch/powerpc/include/asm/fixmap.h b/arch/powerpc/include/asm/f= ixmap.h index a832aeafe560..f9068dd8dfce 100644 --- a/arch/powerpc/include/asm/fixmap.h +++ b/arch/powerpc/include/asm/fixmap.h @@ -23,18 +23,6 @@ #include #endif =20 -#ifdef CONFIG_PPC64 -#define FIXADDR_TOP (IOREMAP_END + FIXADDR_SIZE) -#else -#define FIXADDR_SIZE 0 -#ifdef CONFIG_KASAN -#include -#define FIXADDR_TOP (KASAN_SHADOW_START - PAGE_SIZE) -#else -#define FIXADDR_TOP ((unsigned long)(-PAGE_SIZE)) -#endif -#endif - /* * Here we define all the compile-time 'special' virtual * addresses. The point is to have a constant address at @@ -119,5 +107,9 @@ static inline void __set_fixmap(enum fixed_addresses id= x, =20 #define __early_set_fixmap __set_fixmap =20 +#ifdef CONFIG_PPC_8xx +#define VIRT_IMMR_BASE (__fix_to_virt(FIX_IMMR_BASE)) +#endif + #endif /* !__ASSEMBLY__ */ #endif diff --git a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h b/arch/powerpc/in= clude/asm/nohash/32/mmu-8xx.h index 0e93a4728c9e..141d82e249a8 100644 --- a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h +++ b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h @@ -188,7 +188,6 @@ typedef struct { } mm_context_t; =20 #define PHYS_IMMR_BASE (mfspr(SPRN_IMMR) & 0xfff80000) -#define VIRT_IMMR_BASE (__fix_to_virt(FIX_IMMR_BASE)) =20 /* Page size definitions, common between 32 and 64-bit * diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/in= clude/asm/nohash/32/pgtable.h index 868aecbec8d1..c8311ee08811 100644 --- a/arch/powerpc/include/asm/nohash/32/pgtable.h +++ b/arch/powerpc/include/asm/nohash/32/pgtable.h @@ -71,7 +71,14 @@ void unmap_kernel_page(unsigned long va); * value (for now) on others, from where we can start layout kernel * virtual space that goes below PKMAP and FIXMAP */ -#include + +#define FIXADDR_SIZE 0 +#ifdef CONFIG_KASAN +#include +#define FIXADDR_TOP (KASAN_SHADOW_START - PAGE_SIZE) +#else +#define FIXADDR_TOP ((unsigned long)(-PAGE_SIZE)) +#endif =20 /* * ioremap_bot starts at that address. Early ioremaps move down from there, diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/in= clude/asm/nohash/64/pgtable.h index 8083c04a1e6d..dee3fc654d40 100644 --- a/arch/powerpc/include/asm/nohash/64/pgtable.h +++ b/arch/powerpc/include/asm/nohash/64/pgtable.h @@ -57,6 +57,7 @@ #define IOREMAP_START (ioremap_bot) #define IOREMAP_END (KERN_IO_START + KERN_IO_SIZE - FIXADDR_SIZE) #define FIXADDR_SIZE SZ_32M +#define FIXADDR_TOP (IOREMAP_END + FIXADDR_SIZE) =20 /* * Defines the address of the vmemap area, in its own region on diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c index d8adc452f431..4e71dfe7d026 100644 --- a/arch/powerpc/mm/init_32.c +++ b/arch/powerpc/mm/init_32.c @@ -39,6 +39,7 @@ #include #include #include +#include =20 #include =20 diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 8b121df7b08f..08f3ec9d522b 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -26,6 +26,7 @@ #include #include #include +#include =20 #include =20 diff --git a/arch/powerpc/mm/nohash/8xx.c b/arch/powerpc/mm/nohash/8xx.c index dbbfe897455d..bb9c39b449d1 100644 --- a/arch/powerpc/mm/nohash/8xx.c +++ b/arch/powerpc/mm/nohash/8xx.c @@ -10,6 +10,8 @@ #include #include =20 +#include + #include =20 #define IMMR_SIZE (FIX_IMMR_SIZE << PAGE_SHIFT) diff --git a/arch/powerpc/platforms/83xx/misc.c b/arch/powerpc/platforms/83= xx/misc.c index 2fb2a85d131f..1135c1ab923c 100644 --- a/arch/powerpc/platforms/83xx/misc.c +++ b/arch/powerpc/platforms/83xx/misc.c @@ -14,6 +14,8 @@ #include #include #include +#include + #include #include =20 diff --git a/arch/powerpc/platforms/8xx/cpm1.c b/arch/powerpc/platforms/8xx= /cpm1.c index ebb5f6a27dbf..b24d4102fbf6 100644 --- a/arch/powerpc/platforms/8xx/cpm1.c +++ b/arch/powerpc/platforms/8xx/cpm1.c @@ -40,6 +40,7 @@ #include #include #include +#include =20 #include =20 --=20 2.41.0