From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Dominik Brodowski <linux@dominikbrodowski.net>,
Geoff Levand <geoff@infradead.org>, Jens Axboe <axboe@kernel.dk>,
Kumar Gala <galak@kernel.crashing.org>,
Li Yang <leoyang.li@nxp.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
Paul Mackerras <paulus@samba.org>, Scott Wood <oss@buserror.net>,
aneesh.kumar@linux.vnet.ibm.com
Cc: linux-arm-kernel@lists.infradead.org,
linux-block@vger.kernel.org, linux-fbdev@vger.kernel.org,
linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
dri-devel@lists.freedesktop.org
Subject: [PATCH v3 13/24] powerpc/mm: Split dump_pagelinuxtables flag_array table
Date: Tue, 9 Oct 2018 13:51:58 +0000 (UTC) [thread overview]
Message-ID: <9e3b866602e5fd9697126bd51d1d57f7c7e8fb55.1539092112.git.christophe.leroy@c-s.fr> (raw)
In-Reply-To: <cover.1539092111.git.christophe.leroy@c-s.fr>
To reduce the complexity of flag_array, and allow the removal of
default 0 value of non existing flags, lets have one flag_array
table for each platform family with only the really existing flags.
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
arch/powerpc/mm/Makefile | 7 ++
arch/powerpc/mm/dump_linuxpagetables-8xx.c | 82 +++++++++++++
arch/powerpc/mm/dump_linuxpagetables-book3s64.c | 115 ++++++++++++++++++
arch/powerpc/mm/dump_linuxpagetables-generic.c | 82 +++++++++++++
arch/powerpc/mm/dump_linuxpagetables.c | 155 +-----------------------
arch/powerpc/mm/dump_linuxpagetables.h | 19 +++
6 files changed, 307 insertions(+), 153 deletions(-)
create mode 100644 arch/powerpc/mm/dump_linuxpagetables-8xx.c
create mode 100644 arch/powerpc/mm/dump_linuxpagetables-book3s64.c
create mode 100644 arch/powerpc/mm/dump_linuxpagetables-generic.c
create mode 100644 arch/powerpc/mm/dump_linuxpagetables.h
diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile
index cdf6a9960046..3c844bdd16c4 100644
--- a/arch/powerpc/mm/Makefile
+++ b/arch/powerpc/mm/Makefile
@@ -43,5 +43,12 @@ obj-$(CONFIG_HIGHMEM) += highmem.o
obj-$(CONFIG_PPC_COPRO_BASE) += copro_fault.o
obj-$(CONFIG_SPAPR_TCE_IOMMU) += mmu_context_iommu.o
obj-$(CONFIG_PPC_PTDUMP) += dump_linuxpagetables.o
+ifdef CONFIG_PPC_PTDUMP
+obj-$(CONFIG_4xx) += dump_linuxpagetables-generic.o
+obj-$(CONFIG_PPC_8xx) += dump_linuxpagetables-8xx.o
+obj-$(CONFIG_PPC_BOOK3E_MMU) += dump_linuxpagetables-generic.o
+obj-$(CONFIG_PPC_BOOK3S_32) += dump_linuxpagetables-generic.o
+obj-$(CONFIG_PPC_BOOK3S_64) += dump_linuxpagetables-book3s64.o
+endif
obj-$(CONFIG_PPC_HTDUMP) += dump_hashpagetable.o
obj-$(CONFIG_PPC_MEM_KEYS) += pkeys.o
diff --git a/arch/powerpc/mm/dump_linuxpagetables-8xx.c b/arch/powerpc/mm/dump_linuxpagetables-8xx.c
new file mode 100644
index 000000000000..33f52a97975b
--- /dev/null
+++ b/arch/powerpc/mm/dump_linuxpagetables-8xx.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * From split of dump_linuxpagetables.c
+ * Copyright 2016, Rashmica Gupta, IBM Corp.
+ *
+ */
+#include <linux/kernel.h>
+#include <asm/pgtable.h>
+
+#include "dump_linuxpagetables.h"
+
+static const struct flag_info flag_array[] = {
+ {
+ .mask = _PAGE_PRIVILEGED,
+ .val = 0,
+ .set = "user",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_RO | _PAGE_NA,
+ .val = 0,
+ .set = "rw",
+ }, {
+ .mask = _PAGE_RO | _PAGE_NA,
+ .val = _PAGE_RO,
+ .set = "r ",
+ }, {
+ .mask = _PAGE_RO | _PAGE_NA,
+ .val = _PAGE_NA,
+ .set = " ",
+ }, {
+ .mask = _PAGE_EXEC,
+ .val = _PAGE_EXEC,
+ .set = " X ",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_PRESENT,
+ .val = _PAGE_PRESENT,
+ .set = "present",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_GUARDED,
+ .val = _PAGE_GUARDED,
+ .set = "guarded",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_DIRTY,
+ .val = _PAGE_DIRTY,
+ .set = "dirty",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_ACCESSED,
+ .val = _PAGE_ACCESSED,
+ .set = "accessed",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_NO_CACHE,
+ .val = _PAGE_NO_CACHE,
+ .set = "no cache",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_SPECIAL,
+ .val = _PAGE_SPECIAL,
+ .set = "special",
+ }
+};
+
+struct pgtable_level pg_level[5] = {
+ {
+ }, { /* pgd */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pud */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pmd */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pte */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ },
+};
diff --git a/arch/powerpc/mm/dump_linuxpagetables-book3s64.c b/arch/powerpc/mm/dump_linuxpagetables-book3s64.c
new file mode 100644
index 000000000000..a637e612b205
--- /dev/null
+++ b/arch/powerpc/mm/dump_linuxpagetables-book3s64.c
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * From split of dump_linuxpagetables.c
+ * Copyright 2016, Rashmica Gupta, IBM Corp.
+ *
+ */
+#include <linux/kernel.h>
+#include <asm/pgtable.h>
+
+#include "dump_linuxpagetables.h"
+
+static const struct flag_info flag_array[] = {
+ {
+ .mask = _PAGE_PRIVILEGED,
+ .val = 0,
+ .set = "user",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_READ,
+ .val = _PAGE_READ,
+ .set = "r",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_WRITE,
+ .val = _PAGE_WRITE,
+ .set = "w",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_EXEC,
+ .val = _PAGE_EXEC,
+ .set = " X ",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_PTE,
+ .val = _PAGE_PTE,
+ .set = "pte",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_PRESENT,
+ .val = _PAGE_PRESENT,
+ .set = "present",
+ .clear = " ",
+ }, {
+ .mask = H_PAGE_HASHPTE,
+ .val = H_PAGE_HASHPTE,
+ .set = "hpte",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_DIRTY,
+ .val = _PAGE_DIRTY,
+ .set = "dirty",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_ACCESSED,
+ .val = _PAGE_ACCESSED,
+ .set = "accessed",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_NON_IDEMPOTENT,
+ .val = _PAGE_NON_IDEMPOTENT,
+ .set = "non-idempotent",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_TOLERANT,
+ .val = _PAGE_TOLERANT,
+ .set = "tolerant",
+ .clear = " ",
+ }, {
+ .mask = H_PAGE_BUSY,
+ .val = H_PAGE_BUSY,
+ .set = "busy",
+ }, {
+#ifdef CONFIG_PPC_64K_PAGES
+ .mask = H_PAGE_COMBO,
+ .val = H_PAGE_COMBO,
+ .set = "combo",
+ }, {
+ .mask = H_PAGE_4K_PFN,
+ .val = H_PAGE_4K_PFN,
+ .set = "4K_pfn",
+ }, {
+#else /* CONFIG_PPC_64K_PAGES */
+ .mask = H_PAGE_F_GIX,
+ .val = H_PAGE_F_GIX,
+ .set = "f_gix",
+ .is_val = true,
+ .shift = H_PAGE_F_GIX_SHIFT,
+ }, {
+ .mask = H_PAGE_F_SECOND,
+ .val = H_PAGE_F_SECOND,
+ .set = "f_second",
+ }, {
+#endif /* CONFIG_PPC_64K_PAGES */
+ .mask = _PAGE_SPECIAL,
+ .val = _PAGE_SPECIAL,
+ .set = "special",
+ }
+};
+
+struct pgtable_level pg_level[5] = {
+ {
+ }, { /* pgd */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pud */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pmd */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pte */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ },
+};
diff --git a/arch/powerpc/mm/dump_linuxpagetables-generic.c b/arch/powerpc/mm/dump_linuxpagetables-generic.c
new file mode 100644
index 000000000000..1e3829ec1348
--- /dev/null
+++ b/arch/powerpc/mm/dump_linuxpagetables-generic.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * From split of dump_linuxpagetables.c
+ * Copyright 2016, Rashmica Gupta, IBM Corp.
+ *
+ */
+#include <linux/kernel.h>
+#include <asm/pgtable.h>
+
+#include "dump_linuxpagetables.h"
+
+static const struct flag_info flag_array[] = {
+ {
+ .mask = _PAGE_USER,
+ .val = _PAGE_USER,
+ .set = "user",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_RW,
+ .val = _PAGE_RW,
+ .set = "rw",
+ .clear = "r ",
+ }, {
+#ifndef CONFIG_PPC_BOOK3S_32
+ .mask = _PAGE_EXEC,
+ .val = _PAGE_EXEC,
+ .set = " X ",
+ .clear = " ",
+ }, {
+#endif
+ .mask = _PAGE_PRESENT,
+ .val = _PAGE_PRESENT,
+ .set = "present",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_GUARDED,
+ .val = _PAGE_GUARDED,
+ .set = "guarded",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_DIRTY,
+ .val = _PAGE_DIRTY,
+ .set = "dirty",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_ACCESSED,
+ .val = _PAGE_ACCESSED,
+ .set = "accessed",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_WRITETHRU,
+ .val = _PAGE_WRITETHRU,
+ .set = "write through",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_NO_CACHE,
+ .val = _PAGE_NO_CACHE,
+ .set = "no cache",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_SPECIAL,
+ .val = _PAGE_SPECIAL,
+ .set = "special",
+ }
+};
+
+struct pgtable_level pg_level[5] = {
+ {
+ }, { /* pgd */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pud */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pmd */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pte */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ },
+};
diff --git a/arch/powerpc/mm/dump_linuxpagetables.c b/arch/powerpc/mm/dump_linuxpagetables.c
index 876e2a3c79f2..e60aa6d7456d 100644
--- a/arch/powerpc/mm/dump_linuxpagetables.c
+++ b/arch/powerpc/mm/dump_linuxpagetables.c
@@ -27,6 +27,8 @@
#include <asm/page.h>
#include <asm/pgalloc.h>
+#include "dump_linuxpagetables.h"
+
#ifdef CONFIG_PPC32
#define KERN_VIRT_START 0
#endif
@@ -101,159 +103,6 @@ static struct addr_marker address_markers[] = {
{ -1, NULL },
};
-struct flag_info {
- u64 mask;
- u64 val;
- const char *set;
- const char *clear;
- bool is_val;
- int shift;
-};
-
-static const struct flag_info flag_array[] = {
- {
- .mask = _PAGE_USER | _PAGE_PRIVILEGED,
- .val = _PAGE_USER,
- .set = "user",
- .clear = " ",
- }, {
- .mask = _PAGE_RW | _PAGE_RO | _PAGE_NA,
- .val = _PAGE_RW,
- .set = "rw",
- }, {
- .mask = _PAGE_RW | _PAGE_RO | _PAGE_NA,
- .val = _PAGE_RO,
- .set = "ro",
- }, {
-#if _PAGE_NA != 0
- .mask = _PAGE_RW | _PAGE_RO | _PAGE_NA,
- .val = _PAGE_RO,
- .set = "na",
- }, {
-#endif
- .mask = _PAGE_EXEC,
- .val = _PAGE_EXEC,
- .set = " X ",
- .clear = " ",
- }, {
- .mask = _PAGE_PTE,
- .val = _PAGE_PTE,
- .set = "pte",
- .clear = " ",
- }, {
- .mask = _PAGE_PRESENT,
- .val = _PAGE_PRESENT,
- .set = "present",
- .clear = " ",
- }, {
-#ifdef CONFIG_PPC_BOOK3S_64
- .mask = H_PAGE_HASHPTE,
- .val = H_PAGE_HASHPTE,
-#else
- .mask = _PAGE_HASHPTE,
- .val = _PAGE_HASHPTE,
-#endif
- .set = "hpte",
- .clear = " ",
- }, {
-#ifndef CONFIG_PPC_BOOK3S_64
- .mask = _PAGE_GUARDED,
- .val = _PAGE_GUARDED,
- .set = "guarded",
- .clear = " ",
- }, {
-#endif
- .mask = _PAGE_DIRTY,
- .val = _PAGE_DIRTY,
- .set = "dirty",
- .clear = " ",
- }, {
- .mask = _PAGE_ACCESSED,
- .val = _PAGE_ACCESSED,
- .set = "accessed",
- .clear = " ",
- }, {
-#ifndef CONFIG_PPC_BOOK3S_64
- .mask = _PAGE_WRITETHRU,
- .val = _PAGE_WRITETHRU,
- .set = "write through",
- .clear = " ",
- }, {
-#endif
-#ifndef CONFIG_PPC_BOOK3S_64
- .mask = _PAGE_NO_CACHE,
- .val = _PAGE_NO_CACHE,
- .set = "no cache",
- .clear = " ",
- }, {
-#else
- .mask = _PAGE_NON_IDEMPOTENT,
- .val = _PAGE_NON_IDEMPOTENT,
- .set = "non-idempotent",
- .clear = " ",
- }, {
- .mask = _PAGE_TOLERANT,
- .val = _PAGE_TOLERANT,
- .set = "tolerant",
- .clear = " ",
- }, {
-#endif
-#ifdef CONFIG_PPC_BOOK3S_64
- .mask = H_PAGE_BUSY,
- .val = H_PAGE_BUSY,
- .set = "busy",
- }, {
-#ifdef CONFIG_PPC_64K_PAGES
- .mask = H_PAGE_COMBO,
- .val = H_PAGE_COMBO,
- .set = "combo",
- }, {
- .mask = H_PAGE_4K_PFN,
- .val = H_PAGE_4K_PFN,
- .set = "4K_pfn",
- }, {
-#else /* CONFIG_PPC_64K_PAGES */
- .mask = H_PAGE_F_GIX,
- .val = H_PAGE_F_GIX,
- .set = "f_gix",
- .is_val = true,
- .shift = H_PAGE_F_GIX_SHIFT,
- }, {
- .mask = H_PAGE_F_SECOND,
- .val = H_PAGE_F_SECOND,
- .set = "f_second",
- }, {
-#endif /* CONFIG_PPC_64K_PAGES */
-#endif
- .mask = _PAGE_SPECIAL,
- .val = _PAGE_SPECIAL,
- .set = "special",
- }
-};
-
-struct pgtable_level {
- const struct flag_info *flag;
- size_t num;
- u64 mask;
-};
-
-static struct pgtable_level pg_level[] = {
- {
- }, { /* pgd */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- }, { /* pud */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- }, { /* pmd */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- }, { /* pte */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- },
-};
-
static void dump_flag_info(struct pg_state *st, const struct flag_info
*flag, u64 pte, int num)
{
diff --git a/arch/powerpc/mm/dump_linuxpagetables.h b/arch/powerpc/mm/dump_linuxpagetables.h
new file mode 100644
index 000000000000..5d513636de73
--- /dev/null
+++ b/arch/powerpc/mm/dump_linuxpagetables.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/types.h>
+
+struct flag_info {
+ u64 mask;
+ u64 val;
+ const char *set;
+ const char *clear;
+ bool is_val;
+ int shift;
+};
+
+struct pgtable_level {
+ const struct flag_info *flag;
+ size_t num;
+ u64 mask;
+};
+
+extern struct pgtable_level pg_level[5];
--
2.13.3
next prev parent reply other threads:[~2018-10-09 13:53 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-09 13:51 [PATCH v3 00/24] ban the use of _PAGE_XXX flags outside platform specific code Christophe Leroy
2018-10-09 13:51 ` [PATCH v3 01/24] powerpc/32: Add ioremap_wt() and ioremap_coherent() Christophe Leroy
2018-10-15 4:01 ` [v3,01/24] " Michael Ellerman
2018-10-09 13:51 ` [PATCH v3 02/24] drivers/video/fbdev: use ioremap_wc/wt() instead of __ioremap() Christophe Leroy
2018-10-11 14:07 ` Christophe LEROY
2018-10-09 13:51 ` [PATCH v3 03/24] drivers/block/z2ram: use ioremap_wt() instead of __ioremap(_PAGE_WRITETHRU) Christophe Leroy
2018-10-09 14:59 ` Bart Van Assche
2018-10-09 15:13 ` Geert Uytterhoeven
2018-10-09 13:51 ` [PATCH v3 04/24] soc/fsl/qbman: use ioremap_cache() instead of ioremap_prot(0) Christophe Leroy
2018-10-09 13:51 ` [PATCH v3 05/24] powerpc: don't use ioremap_prot() nor __ioremap() unless really needed Christophe Leroy
2018-10-09 13:51 ` [PATCH v3 06/24] powerpc/mm: properly set PAGE_KERNEL flags in ioremap() Christophe Leroy
2018-10-14 3:32 ` Michael Ellerman
2018-10-14 7:02 ` Michael Ellerman
2018-10-14 9:58 ` LEROY Christophe
2018-10-15 9:25 ` Michael Ellerman
2018-10-14 7:39 ` LEROY Christophe
2018-10-14 10:05 ` LEROY Christophe
2018-10-09 13:51 ` [PATCH v3 07/24] powerpc: handover page flags with a pgprot_t parameter Christophe Leroy
2018-10-09 13:51 ` [PATCH v3 08/24] powerpc/mm: don't use _PAGE_EXEC in book3s/32 Christophe Leroy
2018-10-09 13:51 ` [PATCH v3 09/24] powerpc/mm: move some nohash pte helpers in nohash/[32:64]/pgtable.h Christophe Leroy
2018-10-09 13:51 ` [PATCH v3 10/24] powerpc/mm: add pte helpers to query and change pte flags Christophe Leroy
2018-10-09 13:51 ` [PATCH v3 11/24] powerpc/mm: don't use _PAGE_EXEC for calling hash_preload() Christophe Leroy
2018-10-09 13:51 ` [PATCH v3 12/24] powerpc/mm: use pte helpers in generic code Christophe Leroy
2018-10-17 0:59 ` Crash on FSL Book3E due to pte_pgprot()? (was Re: [PATCH v3 12/24] powerpc/mm: use pte helpers in generic code) Michael Ellerman
2018-10-17 6:00 ` Christophe Leroy
2018-10-17 9:39 ` Aneesh Kumar K.V
2018-10-17 9:55 ` Christophe LEROY
2018-10-17 10:32 ` Michael Ellerman
2018-10-17 11:12 ` Christophe Leroy
2018-10-17 11:53 ` Aneesh Kumar K.V
2018-10-09 13:51 ` Christophe Leroy [this message]
2018-10-09 13:52 ` [PATCH v3 14/24] powerpc/mm: drop unused page flags Christophe Leroy
2018-10-09 13:52 ` [PATCH v3 15/24] powerpc/mm: move __P and __S tables in the common pgtable.h Christophe Leroy
2018-10-09 13:52 ` [PATCH v3 16/24] powerpc/book3s/32: do not include pte-common.h Christophe Leroy
2018-10-09 13:52 ` [PATCH v3 17/24] powerpc/mm: Move pte_user() into nohash/pgtable.h Christophe Leroy
2018-10-09 13:52 ` [PATCH v3 18/24] powerpc/mm: Distribute platform specific PAGE and PMD flags and definitions Christophe Leroy
2018-10-09 13:52 ` [PATCH v3 19/24] powerpc/nohash/64: do not include pte-common.h Christophe Leroy
2018-10-09 13:52 ` [PATCH v3 20/24] powerpc/mm: Allow platforms to redefine some helpers Christophe Leroy
2018-10-09 13:52 ` [PATCH v3 21/24] powerpc/mm: Define platform default caches related flags Christophe Leroy
2018-10-09 13:52 ` [PATCH v3 22/24] powerpc/mm: Get rid of pte-common.h Christophe Leroy
2018-10-09 13:52 ` [PATCH v3 23/24] powerpc/8xx: change name of a few page flags to avoid confusion Christophe Leroy
2018-10-09 13:52 ` [PATCH v3 24/24] powerpc/book3s64: Avoid multiple endian conversion in pte helpers Christophe Leroy
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