From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758197Ab3LXBTP (ORCPT ); Mon, 23 Dec 2013 20:19:15 -0500 Received: from LGEMRELSE7Q.lge.com ([156.147.1.151]:45124 "EHLO LGEMRELSE7Q.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753643Ab3LXBTM (ORCPT ); Mon, 23 Dec 2013 20:19:12 -0500 X-AuditID: 9c930197-b7c4aae000003d84-88-52b8e10d9289 From: "Gioh Kim" To: "'Russell King'" Cc: , , , "HyoJun Im" Subject: [PATCH] [RFC] ARM: mm: add configuration for the size of module space Date: Tue, 24 Dec 2013 10:19:09 +0900 Message-ID: <000c01cf0046$25eb1db0$71c15910$@lge.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-Index: Ac8ARCKFasVy/dJwSae3K4WrLM5AUQ== Content-Language: ko X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, I run out of module space because I have several big driver modules. I know I can strip the modules to decrease size but I need debug info now. The default size of module is 16MB and the size is statically defined in the header file. But a description for the module space size tell that it can be configurable at most 32MB. I have changed the module space size to 18MB and tested my platform. It have been looking good. I am not sure my patch is proper solution. Anyway, could I configure the module space size? Signed-off-by: Gioh Kim --- arch/arm/Kconfig | 4 ++++ arch/arm/include/asm/memory.h | 10 +++++++--- 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index c1f1a7e..cf1fb55 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -2257,6 +2257,10 @@ config ARM_CPU_SUSPEND endmenu +config MODULES_AREA_SIZE + int + default 0x1000000 + source "net/Kconfig" source "drivers/Kconfig" diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 6976b03..3396758 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -32,13 +32,17 @@ #ifdef CONFIG_MMU +#if CONFIG_MODULES_AREA_SIZE > SZ_32M +#error Too much space for modules +#endif + /* * PAGE_OFFSET - the virtual address of the start of the kernel image * TASK_SIZE - the maximum size of a user space task. * TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area */ -#define PAGE_OFFSET UL(CONFIG_PAGE_OFFSET) -#define TASK_SIZE (UL(CONFIG_PAGE_OFFSET) - UL(SZ_16M)) +#define PAGE_OFFSET UL(CONFIG_PAGE_OFFSET) +#define TASK_SIZE (UL(CONFIG_PAGE_OFFSET) - UL(CONFIG_MODULES_AREA_SIZE)) #define TASK_UNMAPPED_BASE ALIGN(TASK_SIZE / 3, SZ_16M) /* @@ -51,7 +55,7 @@ * and PAGE_OFFSET - it must be within 32MB of the kernel text. */ #ifndef CONFIG_THUMB2_KERNEL -#define MODULES_VADDR (PAGE_OFFSET - SZ_16M) +#define MODULES_VADDR (PAGE_OFFSET - CONFIG_MODULES_AREA_SIZE) #else /* smaller range for Thumb-2 symbols relocation (2^24)*/ #define MODULES_VADDR (PAGE_OFFSET - SZ_8M) -- 1.7.9.5