From: afzal mohammed <afzal.mohd.ma@gmail.com> To: Russell King - ARM Linux <linux@armlinux.org.uk> Cc: Vladimir Murzin <vladimir.murzin@arm.com>, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, afzal mohammed <afzal.mohd.ma@gmail.com> Subject: [PATCH 1/4] ARM: mmu: decouple VECTORS_BASE from Kconfig Date: Thu, 19 Jan 2017 02:07:39 +0530 [thread overview] Message-ID: <20170118203739.6400-1-afzal.mohd.ma@gmail.com> (raw) In-Reply-To: <20170118203525.6246-1-afzal.mohd.ma@gmail.com> For MMU configurations, VECTORS_BASE is always 0xffff0000, a macro definition will suffice. Once exception address is handled dynamically for no-MMU also (this would involve taking care of region setup too), VECTORS_BASE can be removed from Kconfig. Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com> --- Though there was no build error without inclusion of asm/memory.h, to be on the safer side it has been added, to reduce chances of build breakage in random configurations. arch/arm/include/asm/memory.h | 2 ++ arch/arm/mach-berlin/platsmp.c | 3 ++- arch/arm/mm/dump.c | 5 +++-- arch/arm/mm/init.c | 4 ++-- 4 files changed, 9 insertions(+), 5 deletions(-) diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 76cbd9c674df..9cc9f1dbc88e 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -83,6 +83,8 @@ #define IOREMAP_MAX_ORDER 24 #endif +#define VECTORS_BASE 0xffff0000 + #else /* CONFIG_MMU */ /* diff --git a/arch/arm/mach-berlin/platsmp.c b/arch/arm/mach-berlin/platsmp.c index 93f90688db18..578d41031abf 100644 --- a/arch/arm/mach-berlin/platsmp.c +++ b/arch/arm/mach-berlin/platsmp.c @@ -15,6 +15,7 @@ #include <asm/cacheflush.h> #include <asm/cp15.h> +#include <asm/memory.h> #include <asm/smp_plat.h> #include <asm/smp_scu.h> @@ -75,7 +76,7 @@ static void __init berlin_smp_prepare_cpus(unsigned int max_cpus) if (!cpu_ctrl) goto unmap_scu; - vectors_base = ioremap(CONFIG_VECTORS_BASE, SZ_32K); + vectors_base = ioremap(VECTORS_BASE, SZ_32K); if (!vectors_base) goto unmap_scu; diff --git a/arch/arm/mm/dump.c b/arch/arm/mm/dump.c index 9fe8e241335c..21192d6eda40 100644 --- a/arch/arm/mm/dump.c +++ b/arch/arm/mm/dump.c @@ -18,6 +18,7 @@ #include <linux/seq_file.h> #include <asm/fixmap.h> +#include <asm/memory.h> #include <asm/pgtable.h> struct addr_marker { @@ -31,8 +32,8 @@ static struct addr_marker address_markers[] = { { 0, "vmalloc() Area" }, { VMALLOC_END, "vmalloc() End" }, { FIXADDR_START, "Fixmap Area" }, - { CONFIG_VECTORS_BASE, "Vectors" }, - { CONFIG_VECTORS_BASE + PAGE_SIZE * 2, "Vectors End" }, + { VECTORS_BASE, "Vectors" }, + { VECTORS_BASE + PAGE_SIZE * 2, "Vectors End" }, { -1, NULL }, }; diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 370581aeb871..cf47f86f79ed 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -27,6 +27,7 @@ #include <asm/cp15.h> #include <asm/mach-types.h> #include <asm/memblock.h> +#include <asm/memory.h> #include <asm/prom.h> #include <asm/sections.h> #include <asm/setup.h> @@ -521,8 +522,7 @@ void __init mem_init(void) " .data : 0x%p" " - 0x%p" " (%4td kB)\n" " .bss : 0x%p" " - 0x%p" " (%4td kB)\n", - MLK(UL(CONFIG_VECTORS_BASE), UL(CONFIG_VECTORS_BASE) + - (PAGE_SIZE)), + MLK(UL(VECTORS_BASE), UL(VECTORS_BASE) + (PAGE_SIZE)), #ifdef CONFIG_HAVE_TCM MLK(DTCM_OFFSET, (unsigned long) dtcm_end), MLK(ITCM_OFFSET, (unsigned long) itcm_end), -- 2.11.0
WARNING: multiple messages have this Message-ID (diff)
From: afzal.mohd.ma@gmail.com (afzal mohammed) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 1/4] ARM: mmu: decouple VECTORS_BASE from Kconfig Date: Thu, 19 Jan 2017 02:07:39 +0530 [thread overview] Message-ID: <20170118203739.6400-1-afzal.mohd.ma@gmail.com> (raw) In-Reply-To: <20170118203525.6246-1-afzal.mohd.ma@gmail.com> For MMU configurations, VECTORS_BASE is always 0xffff0000, a macro definition will suffice. Once exception address is handled dynamically for no-MMU also (this would involve taking care of region setup too), VECTORS_BASE can be removed from Kconfig. Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com> --- Though there was no build error without inclusion of asm/memory.h, to be on the safer side it has been added, to reduce chances of build breakage in random configurations. arch/arm/include/asm/memory.h | 2 ++ arch/arm/mach-berlin/platsmp.c | 3 ++- arch/arm/mm/dump.c | 5 +++-- arch/arm/mm/init.c | 4 ++-- 4 files changed, 9 insertions(+), 5 deletions(-) diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 76cbd9c674df..9cc9f1dbc88e 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -83,6 +83,8 @@ #define IOREMAP_MAX_ORDER 24 #endif +#define VECTORS_BASE 0xffff0000 + #else /* CONFIG_MMU */ /* diff --git a/arch/arm/mach-berlin/platsmp.c b/arch/arm/mach-berlin/platsmp.c index 93f90688db18..578d41031abf 100644 --- a/arch/arm/mach-berlin/platsmp.c +++ b/arch/arm/mach-berlin/platsmp.c @@ -15,6 +15,7 @@ #include <asm/cacheflush.h> #include <asm/cp15.h> +#include <asm/memory.h> #include <asm/smp_plat.h> #include <asm/smp_scu.h> @@ -75,7 +76,7 @@ static void __init berlin_smp_prepare_cpus(unsigned int max_cpus) if (!cpu_ctrl) goto unmap_scu; - vectors_base = ioremap(CONFIG_VECTORS_BASE, SZ_32K); + vectors_base = ioremap(VECTORS_BASE, SZ_32K); if (!vectors_base) goto unmap_scu; diff --git a/arch/arm/mm/dump.c b/arch/arm/mm/dump.c index 9fe8e241335c..21192d6eda40 100644 --- a/arch/arm/mm/dump.c +++ b/arch/arm/mm/dump.c @@ -18,6 +18,7 @@ #include <linux/seq_file.h> #include <asm/fixmap.h> +#include <asm/memory.h> #include <asm/pgtable.h> struct addr_marker { @@ -31,8 +32,8 @@ static struct addr_marker address_markers[] = { { 0, "vmalloc() Area" }, { VMALLOC_END, "vmalloc() End" }, { FIXADDR_START, "Fixmap Area" }, - { CONFIG_VECTORS_BASE, "Vectors" }, - { CONFIG_VECTORS_BASE + PAGE_SIZE * 2, "Vectors End" }, + { VECTORS_BASE, "Vectors" }, + { VECTORS_BASE + PAGE_SIZE * 2, "Vectors End" }, { -1, NULL }, }; diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 370581aeb871..cf47f86f79ed 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -27,6 +27,7 @@ #include <asm/cp15.h> #include <asm/mach-types.h> #include <asm/memblock.h> +#include <asm/memory.h> #include <asm/prom.h> #include <asm/sections.h> #include <asm/setup.h> @@ -521,8 +522,7 @@ void __init mem_init(void) " .data : 0x%p" " - 0x%p" " (%4td kB)\n" " .bss : 0x%p" " - 0x%p" " (%4td kB)\n", - MLK(UL(CONFIG_VECTORS_BASE), UL(CONFIG_VECTORS_BASE) + - (PAGE_SIZE)), + MLK(UL(VECTORS_BASE), UL(VECTORS_BASE) + (PAGE_SIZE)), #ifdef CONFIG_HAVE_TCM MLK(DTCM_OFFSET, (unsigned long) dtcm_end), MLK(ITCM_OFFSET, (unsigned long) itcm_end), -- 2.11.0
next prev parent reply other threads:[~2017-01-18 20:38 UTC|newest] Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-01-18 20:35 [PATCH 0/4] ARM: v7-A !MMU support, CONFIG_VECTORS_BASE removal (almost) afzal mohammed 2017-01-18 20:35 ` afzal mohammed 2017-01-18 20:37 ` afzal mohammed [this message] 2017-01-18 20:37 ` [PATCH 1/4] ARM: mmu: decouple VECTORS_BASE from Kconfig afzal mohammed 2017-01-19 13:21 ` Afzal Mohammed 2017-01-19 13:21 ` Afzal Mohammed 2017-01-19 14:07 ` kbuild test robot 2017-01-19 14:07 ` kbuild test robot 2017-01-19 14:24 ` Russell King - ARM Linux 2017-01-19 14:24 ` Russell King - ARM Linux 2017-01-20 16:06 ` Afzal Mohammed 2017-01-20 16:06 ` Afzal Mohammed 2017-01-22 3:27 ` Afzal Mohammed 2017-01-22 3:27 ` Afzal Mohammed 2017-01-18 20:38 ` [PATCH 2/4] ARM: nommu: dynamic exception base address setting afzal mohammed 2017-01-18 20:38 ` afzal mohammed 2017-01-19 13:59 ` Vladimir Murzin 2017-01-19 13:59 ` Vladimir Murzin 2017-01-20 16:20 ` Afzal Mohammed 2017-01-20 16:20 ` Afzal Mohammed 2017-01-22 3:37 ` Afzal Mohammed 2017-01-22 3:37 ` Afzal Mohammed 2017-01-18 20:38 ` [PATCH 3/4] ARM: nommu: display vectors base afzal mohammed 2017-01-18 20:38 ` afzal mohammed 2017-01-18 22:13 ` Russell King - ARM Linux 2017-01-18 22:13 ` Russell King - ARM Linux 2017-01-19 13:16 ` Afzal Mohammed 2017-01-19 13:16 ` Afzal Mohammed 2017-01-30 12:09 ` Russell King - ARM Linux 2017-01-30 12:09 ` Russell King - ARM Linux 2017-01-18 20:39 ` [PATCH 4/4] ARM: nommu: remove Hivecs configuration is asm afzal mohammed 2017-01-18 20:39 ` afzal mohammed
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20170118203739.6400-1-afzal.mohd.ma@gmail.com \ --to=afzal.mohd.ma@gmail.com \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux@armlinux.org.uk \ --cc=vladimir.murzin@arm.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.