From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3rqDHG1pspzDqKR for ; Wed, 13 Jul 2016 19:36:26 +1000 (AEST) Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id u6D9YFjA140227 for ; Wed, 13 Jul 2016 05:36:23 -0400 Received: from e33.co.us.ibm.com (e33.co.us.ibm.com [32.97.110.151]) by mx0b-001b2d01.pphosted.com with ESMTP id 243ent3g8f-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 13 Jul 2016 05:36:23 -0400 Received: from localhost by e33.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 13 Jul 2016 03:36:22 -0600 From: "Aneesh Kumar K.V" To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au Cc: linuxppc-dev@lists.ozlabs.org, "Aneesh Kumar K.V" Subject: [PATCH for-4.8 09/12] powerpc/mm/radix: Update machine call back to support new HCALL. Date: Wed, 13 Jul 2016 15:05:28 +0530 In-Reply-To: <1468402531-4914-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1468402531-4914-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Message-Id: <1468402531-4914-10-git-send-email-aneesh.kumar@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This update the machine dep callback such that we can use the same callback to register process table. The interface is updated such that we can easily call H_REGISTER_PROC_TBL hcall. The HCALL itself is introduced in a later patch. No functionality change introduced by this patch. Signed-off-by: Aneesh Kumar K.V --- arch/powerpc/include/asm/machdep.h | 3 ++- arch/powerpc/mm/hash_native_64.c | 10 ++++++++-- arch/powerpc/mm/pgtable-radix.c | 9 ++++++--- 3 files changed, 16 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index 6bdcd0da9e21..4c8260855748 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -256,7 +256,8 @@ struct machdep_calls { #ifdef CONFIG_ARCH_RANDOM int (*get_random_seed)(unsigned long *v); #endif - int (*update_partition_table)(u64); + int (*register_process_table)(unsigned long base, unsigned long page_size, + unsigned long tbl_size); }; extern void e500_idle(void); diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c index 70521ef171fc..cb3b4c98b637 100644 --- a/arch/powerpc/mm/hash_native_64.c +++ b/arch/powerpc/mm/hash_native_64.c @@ -725,8 +725,14 @@ static void native_flush_hash_range(unsigned long number, int local) local_irq_restore(flags); } -static int native_update_partition_table(u64 patb1) +static int native_register_proc_table(unsigned long base, unsigned long page_size, + unsigned long table_size) { + unsigned long patb1 = base << 25; /* VSID */ + + patb1 |= (page_size << 5); /* sllp */ + patb1 |= table_size; + partition_tb->patb1 = cpu_to_be64(patb1); return 0; } @@ -743,5 +749,5 @@ void __init hpte_init_native(void) ppc_md.hugepage_invalidate = native_hugepage_invalidate; if (cpu_has_feature(CPU_FTR_ARCH_300)) - ppc_md.update_partition_table = native_update_partition_table; + ppc_md.register_process_table = native_register_proc_table; } diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c index 366d1ea24465..ce21a0f2c2a1 100644 --- a/arch/powerpc/mm/pgtable-radix.c +++ b/arch/powerpc/mm/pgtable-radix.c @@ -21,8 +21,11 @@ #include -static int native_update_partition_table(u64 patb1) +static int native_register_process_table(unsigned long base, unsigned long pg_sz, + unsigned long table_size) { + unsigned long patb1 = base | table_size | PATB_GR; + partition_tb->patb1 = cpu_to_be64(patb1); return 0; } @@ -168,7 +171,7 @@ redo: * of process table here. But our linear mapping also enable us to use * physical address here. */ - ppc_md.update_partition_table(__pa(process_tb) | (PRTB_SIZE_SHIFT - 12) | PATB_GR); + ppc_md.register_process_table(__pa(process_tb), 0, PRTB_SIZE_SHIFT - 12); pr_info("Process table %p and radix root for kernel: %p\n", process_tb, init_mm.pgd); } @@ -195,7 +198,7 @@ static void __init radix_init_partition_table(void) void __init radix_init_native(void) { - ppc_md.update_partition_table = native_update_partition_table; + ppc_md.register_process_table = native_register_process_table; } static int __init get_idx_from_shift(unsigned int shift) -- 2.7.4