From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e36.co.us.ibm.com (e36.co.us.ibm.com [32.97.110.154]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e36.co.us.ibm.com", Issuer "Equifax" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id CEF96DDFAE for ; Fri, 13 Jun 2008 08:14:21 +1000 (EST) Received: from d03relay02.boulder.ibm.com (d03relay02.boulder.ibm.com [9.17.195.227]) by e36.co.us.ibm.com (8.13.8/8.13.8) with ESMTP id m5CMEH4W029468 for ; Thu, 12 Jun 2008 18:14:17 -0400 Received: from d03av01.boulder.ibm.com (d03av01.boulder.ibm.com [9.17.195.167]) by d03relay02.boulder.ibm.com (8.13.8/8.13.8/NCO v9.0) with ESMTP id m5CMEHUv172292 for ; Thu, 12 Jun 2008 16:14:17 -0600 Received: from d03av01.boulder.ibm.com (loopback [127.0.0.1]) by d03av01.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id m5CMEG3Z020745 for ; Thu, 12 Jun 2008 16:14:17 -0600 Date: Thu, 12 Jun 2008 17:12:46 -0500 From: Robert Jennings To: paulus@samba.org Subject: [PATCH 06/19] powerpc: Utilities to set firmware page state Message-ID: <20080612221246.GM30916@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20080612215312.GF30916@linux.vnet.ibm.com> Cc: Brian King , linuxppc-dev@ozlabs.org, David Darrington List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , =46rom: Brian King Newer versions of firmware support page states, which are used by the collaborative memory manager (future patch) to "loan" pages to the hypervisor for use by other partitions. Signed-off-by: Brian King --- arch/powerpc/platforms/pseries/plpar_wrappers.h | 10 ++++++++++ include/asm-powerpc/hvcall.h | 5 +++++ 2 files changed, 15 insertions(+) Index: b/arch/powerpc/platforms/pseries/plpar_wrappers.h =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --- a/arch/powerpc/platforms/pseries/plpar_wrappers.h +++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h @@ -42,6 +42,16 @@ static inline long register_slb_shadow(u return vpa_call(0x3, cpu, vpa); } =20 +static inline long plpar_page_set_loaned(unsigned long vpa) +{ + return plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_LOANED, vpa, 0); +} + +static inline long plpar_page_set_active(unsigned long vpa) +{ + return plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_ACTIVE, vpa, 0); +} + extern void vpa_init(int cpu); =20 static inline long plpar_pte_enter(unsigned long flags, Index: b/include/asm-powerpc/hvcall.h =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --- a/include/asm-powerpc/hvcall.h +++ b/include/asm-powerpc/hvcall.h @@ -92,6 +92,11 @@ #define H_EXACT (1UL<<(63-24)) /* Use exact PTE or return H_PTEG_FULL */ #define H_R_XLATE (1UL<<(63-25)) /* include a valid logical page num in t= he pte if the valid bit is set */ #define H_READ_4 (1UL<<(63-26)) /* Return 4 PTEs */ +#define H_PAGE_STATE_CHANGE (1UL<<(63-28)) +#define H_PAGE_UNUSED ((1UL<<(63-29)) | (1UL<<(63-30))) +#define H_PAGE_SET_UNUSED (H_PAGE_STATE_CHANGE | H_PAGE_UNUSED) +#define H_PAGE_SET_LOANED (H_PAGE_SET_UNUSED | (1UL<<(63-31))) +#define H_PAGE_SET_ACTIVE H_PAGE_STATE_CHANGE #define H_AVPN (1UL<<(63-32)) /* An avpn is provided as a sanity test */ #define H_ANDCOND (1UL<<(63-33)) #define H_ICACHE_INVALIDATE (1UL<<(63-40)) /* icbi, etc. (ignored for IO = pages) */