From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail86-sin-R.bigfish.com (mail-sin.bigfish.com [207.46.51.74]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "*.bigfish.com", Issuer "*.bigfish.com" (not verified)) by ozlabs.org (Postfix) with ESMTP id E5D2F68014 for ; Wed, 22 Nov 2006 15:46:54 +1100 (EST) Message-ID: <4563D01A.9080901@am.sony.com> Date: Tue, 21 Nov 2006 20:20:42 -0800 From: Geoff Levand MIME-Version: 1.0 To: Paul Mackerras Subject: [PATCH 10/14] powerpc: add ps3 platform lpar addressing Content-Type: text/plain; charset=ISO-8859-1 Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Geoff Levand Adds some needed bits for a config option PS3_USE_LPAR_ADDR that disables the PS3 lpar address translation mechanism. This is a currently needed workaround for limitations in the design of the generic cell spu support. Signed-off-by: Arnd Bergmann Signed-off-by: Geoff Levand --- arch/powerpc/platforms/ps3/Kconfig | 11 +++++++++++ include/asm-powerpc/sparsemem.h | 6 ++++++ 2 files changed, 17 insertions(+) Index: cell--common--6/arch/powerpc/platforms/ps3/Kconfig =================================================================== --- cell--common--6.orig/arch/powerpc/platforms/ps3/Kconfig +++ cell--common--6/arch/powerpc/platforms/ps3/Kconfig @@ -29,4 +29,15 @@ This support is mainly for Linux kernel development. If unsure, say N. +config PS3_USE_LPAR_ADDR + depends on PS3 && EXPERIMENTAL + bool "PS3 use lpar address space" + default y + help + This option is solely for experimentation by experts. Disables + translation of lpar addresses. SPE support currently won't work + without this set to y. + + If you have any doubt, choose the default y. + endmenu Index: cell--common--6/include/asm-powerpc/sparsemem.h =================================================================== --- cell--common--6.orig/include/asm-powerpc/sparsemem.h +++ cell--common--6/include/asm-powerpc/sparsemem.h @@ -9,8 +9,14 @@ * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space */ #define SECTION_SIZE_BITS 24 + +#if defined(CONFIG_PS3_USE_LPAR_ADDR) +#define MAX_PHYSADDR_BITS 47 +#define MAX_PHYSMEM_BITS 47 +#else #define MAX_PHYSADDR_BITS 44 #define MAX_PHYSMEM_BITS 44 +#endif #ifdef CONFIG_MEMORY_HOTPLUG extern void create_section_mapping(unsigned long start, unsigned long end);