From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 404qQ522JvzF0wF for ; Tue, 20 Mar 2018 08:46:21 +1100 (AEDT) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPSA id 404qQ44DMLz9sVM for ; Tue, 20 Mar 2018 08:46:20 +1100 (AEDT) From: Paul Mackerras To: linuxppc-dev@ozlabs.org Subject: [PATCH 0/3] powerpc: Free up CPU feature bits Date: Tue, 20 Mar 2018 08:46:10 +1100 Message-Id: <1521495973-3237-1-git-send-email-paulus@ozlabs.org> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This patch series is against the powerpc next branch. It takes advantage of the fact that there are only a few CPU feature bits that are meaningful on both 32-bit and 64-bit platforms. At the moment, many of the 64 bits of the CPU feature mask on 64-bit platforms are taken up with bits which are only relevant to 32-bit platforms. This series rearranges things so that we can use those bits for new features that are relevant only to 64-bit platforms. With this, there are now 20 bits available for new 64-bit features. To make things simpler, we use the bottom 12 bits of the CPU feature word for features that are relevant to both 32-bit and 64-bit platforms. The remaining 20 or 52 bits are then available for features specific to 32-bit or 64-bit platforms. Paul. arch/powerpc/include/asm/cputable.h | 223 +++++++++++++++--------------- arch/powerpc/include/asm/time.h | 2 +- arch/powerpc/kernel/cpu_setup_6xx.S | 2 +- arch/powerpc/kernel/cpu_setup_fsl_booke.S | 2 +- arch/powerpc/kernel/dt_cpu_ftrs.c | 3 +- arch/powerpc/kernel/vdso.c | 12 +- 6 files changed, 122 insertions(+), 122 deletions(-)