From mboxrd@z Thu Jan 1 00:00:00 1970 From: Amerigo Wang Date: Wed, 12 Aug 2009 08:15:55 +0000 Subject: [Patch 4/8] ia64: implement crashkernel=auto Message-Id: <20090812081818.5757.15172.sendpatchset@localhost.localdomain> List-Id: References: <20090812081731.5757.25254.sendpatchset@localhost.localdomain> In-Reply-To: <20090812081731.5757.25254.sendpatchset@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-kernel@vger.kernel.org Cc: tony.luck@intel.com, linux-ia64@vger.kernel.org, Neil Horman , "Eric W. Biederman" , Andi Kleen , Amerigo Wang , akpm@linux-foundation.org, bernhard.walle@gmx.de, Fenghua Yu , Ingo Molnar , Anton Vorontsov Since in patch 2/8 we already implement the generic part, this will add the rest part for ia64. Signed-off-by: WANG Cong --- Index: linux-2.6/arch/ia64/include/asm/kexec.h =================================--- linux-2.6.orig/arch/ia64/include/asm/kexec.h +++ linux-2.6/arch/ia64/include/asm/kexec.h @@ -19,6 +19,29 @@ flush_icache_range(page_addr, page_addr + PAGE_SIZE); \ } while(0) +#ifdef CONFIG_KEXEC_AUTO_RESERVE +#define ARCH_HAS_DEFAULT_CRASH_SIZE +static inline +unsigned long long arch_default_crash_size(unsigned long long total_size) +{ + if (total_size >= 4ULL<<30 && total_size < 12ULL<<30) + return 1ULL<<28; + else if (total_size >= 12ULL<<30 && total_size < 128ULL<<30) + return 1ULL<<29; + else if (total_size >= 128ULL<<30 && total_size < 256ULL<<30) + return 3ULL<<28; + else if (total_size >= 256ULL<<30 && total_size < 378ULL<<30) + return 1ULL<<30; + else if (total_size >= 318ULL<<30 && total_size < 512ULL<<30) + return 3ULL<<29; + else if (total_size >= 512ULL<<30 && total_size < 768ULL<<30) + return 2ULL<<30; + else if (total_size >= 768ULL<<30) + return 3ULL<<30; +} +#include +#endif + extern struct kimage *ia64_kimage; extern const unsigned int relocate_new_kernel_size; extern void relocate_new_kernel(unsigned long, unsigned long,