From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e28smtp07.in.ibm.com (e28smtp07.in.ibm.com [122.248.162.7]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e28smtp07.in.ibm.com", Issuer "GeoTrust SSL CA" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 1CB211007D7 for ; Sat, 10 Dec 2011 16:02:05 +1100 (EST) Received: from /spool/local by e28smtp07.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Sat, 10 Dec 2011 10:32:00 +0530 Received: from d28av01.in.ibm.com (d28av01.in.ibm.com [9.184.220.63]) by d28relay04.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id pBA51tZ04481136 for ; Sat, 10 Dec 2011 10:31:56 +0530 Received: from d28av01.in.ibm.com (loopback [127.0.0.1]) by d28av01.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id pBA51t9W025067 for ; Sat, 10 Dec 2011 10:31:55 +0530 Message-ID: <4EE2E7C0.2040102@in.ibm.com> Date: Sat, 10 Dec 2011 10:31:52 +0530 From: Suzuki Poulose MIME-Version: 1.0 To: Josh Boyer , Benjamin Herrenschmidt Subject: Re: [PATCH v4 0/7] Kudmp support for PPC440x References: <20111209114148.15616.15996.stgit@suzukikp.in.ibm.com> In-Reply-To: <20111209114148.15616.15996.stgit@suzukikp.in.ibm.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: Scott Wood , Josh Poimboeuf , linux ppc dev List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 12/09/11 17:13, Suzuki K. Poulose wrote: > The following series implements: > > * Generic framework for relocatable kernel on PPC32, based on processing > the dynamic relocation entries. > * Relocatable kernel support for 44x > * Kdump support for 44x. Doesn't support 47x yet, as the kexec > support is missing. > > Changes from V3: > > * Added a new config - NONSTATIC_KERNEL - to group different types of relocatable > kernel. (Suggested by: Josh Boyer) > * Added supported ppc relocation types in relocs_check.pl for verifying the > relocations used in the kernel. > > Changes from V2: > > * Renamed old style mapping based RELOCATABLE on BookE to DYNAMIC_MEMSTART. > Suggested by: Scott Wood > * Added support for DYNAMIC_MEMSTART on PPC440x > * Reverted back to RELOCATABLE and RELOCATABLE_PPC32 from RELOCATABLE_PPC32_PIE > for relocation based on processing dynamic reloc entries for PPC32. > * Ensure the modified instructions are flushed and the i-cache invalidated at > the end of relocate(). - Reported by : Josh Poimboeuf > > Changes from V1: > > * Splitted patch 'Enable CONFIG_RELOCATABLE for PPC44x' to move some > of the generic bits to a new patch. > * Renamed RELOCATABLE_PPC32 to RELOCATABLE_PPC32_PIE and provided options to > retained old style mapping. (Suggested by: Scott Wood) > * Added support for avoiding the overlapping of uncompressed kernel > with boot wrapper for PPC images. > > The patches are based on -next tree for ppc. > > I have tested these patches on Ebony, Sequoia and Virtex(QEMU Emulated). > I haven't tested the RELOCATABLE bits on PPC_47x yet, as I don't have access > to one. However, RELOCATABLE should work fine there as we only depend on the > runtime address and the XLAT entry setup by the boot loader. It would be great if > somebody could test these patches on a 47x. > > > --- Updated diffstats: Suzuki K. Poulose (7): [boot] Change the load address for the wrapper to fit the kernel [44x] Enable CRASH_DUMP for 440x [44x] Enable CONFIG_RELOCATABLE for PPC44x [ppc] Define virtual-physical translations for RELOCATABLE [ppc] Process dynamic relocations for kernel [44x] Enable DYNAMIC_MEMSTART for 440x [booke] Rename mapping based RELOCATABLE to DYNAMIC_MEMSTART for BookE arch/powerpc/Kconfig | 46 +++++- arch/powerpc/Makefile | 6 - arch/powerpc/boot/wrapper | 20 ++ arch/powerpc/configs/44x/iss476-smp_defconfig | 2 arch/powerpc/include/asm/kdump.h | 4 arch/powerpc/include/asm/page.h | 89 ++++++++++- arch/powerpc/kernel/Makefile | 2 arch/powerpc/kernel/crash_dump.c | 4 arch/powerpc/kernel/head_44x.S | 105 +++++++++++++ arch/powerpc/kernel/head_fsl_booke.S | 2 arch/powerpc/kernel/machine_kexec.c | 2 arch/powerpc/kernel/prom_init.c | 2 arch/powerpc/kernel/reloc_32.S | 207 +++++++++++++++++++++++++ arch/powerpc/kernel/vmlinux.lds.S | 8 + arch/powerpc/mm/44x_mmu.c | 2 arch/powerpc/mm/init_32.c | 7 + arch/powerpc/relocs_check.pl | 7 + 17 files changed, 489 insertions(+), 26 deletions(-) create mode 100644 arch/powerpc/kernel/reloc_32.S Thanks Suzuki