From patchwork Mon Apr 1 15:36:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 10880187 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CA8DE14DE for ; Mon, 1 Apr 2019 15:37:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B146E2867F for ; Mon, 1 Apr 2019 15:37:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A2E5928785; Mon, 1 Apr 2019 15:37:48 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5082C2867F for ; Mon, 1 Apr 2019 15:37:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=IfJOCudt7cVugW6EAU4DMoayNjpVWcuuMhm6ddMevJg=; b=BwdO+oVVk/Kl5+ 3iH3is5NDyF6IGery15aGlbDlKmp2gb8zy+zfktbvSpMiZ9ZUywFJztYW4HIymJa33m/XkAy3HYa/ 5G2O6ryBORIVc06NRthXzH8/2fP58sTN1/wo1C0sg0ipgzM2IVxlW3zJ3pDjpTUzQwoxbqnJeikDe Yk2N5H2QJmCPCe68tocoeTH8m757R1YGn03aHzJE/u43YppEb9ylX0xUM4C1Pd5wOuxa9UwJ99Rpm MA1++e7Oine5e6fG9cUzMrwVPa7pgmDaEDa91qe/ev6XHcb8WqCyvGBg3TtB6Cj7oVyRgLcxSjIn7 i8Dl2r2dywmYg24Ux4+A==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hAz0G-0006Tv-LG; Mon, 01 Apr 2019 15:37:40 +0000 Received: from szxga07-in.huawei.com ([45.249.212.35] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hAyzw-0005tQ-Vu for linux-arm-kernel@lists.infradead.org; Mon, 01 Apr 2019 15:37:26 +0000 Received: from DGGEMS414-HUB.china.huawei.com (unknown [10.3.19.214]) by Forcepoint Email with ESMTP id 98D9D3E39DD5515E0BB5; Mon, 1 Apr 2019 23:37:11 +0800 (CST) Received: from FRA1000014316.huawei.com (100.126.230.97) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.408.0; Mon, 1 Apr 2019 23:37:01 +0800 From: Jonathan Cameron To: , , Subject: [RFC PATCH v2 3/3] ACPI: Let ACPI know we support Generic Initiator Affinity Structures Date: Mon, 1 Apr 2019 23:36:03 +0800 Message-ID: <20190401153603.67775-4-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190401153603.67775-1-Jonathan.Cameron@huawei.com> References: <20190401153603.67775-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 X-Originating-IP: [100.126.230.97] X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190401_083722_209173_8DCA14BD X-CRM114-Status: GOOD ( 10.54 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: keith.busch@intel.com, jglisse@redhat.com, rjw@rjwysocki.net, linuxarm@huawei.com, Jonathan Cameron Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Until we tell ACPI that we support generic initiators, it will have to operate in fall back domain mode and all _PXM entries should be on existing non GI domains. This patch sets the relevant OSC bit to make that happen. Note that this currently doesn't take into account whether we have the relevant setup code for a given architecture. Do we want to make this optional, or should the initial patch set just enable it for all ACPI supporting architectures? Signed-off-by: Jonathan Cameron --- drivers/acpi/bus.c | 1 + include/linux/acpi.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 6ecbbabf1233..0ebc4722d83e 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -315,6 +315,7 @@ static void acpi_bus_osc_support(void) capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT; capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PCLPI_SUPPORT; + capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_GENERIC_INITIATOR_SUPPORT; #ifdef CONFIG_X86 if (boot_cpu_has(X86_FEATURE_HWP)) { diff --git a/include/linux/acpi.h b/include/linux/acpi.h index d5dcebd7aad3..cc68b2ad0630 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -503,6 +503,7 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); #define OSC_SB_PCLPI_SUPPORT 0x00000080 #define OSC_SB_OSLPI_SUPPORT 0x00000100 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 +#define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000 extern bool osc_sb_apei_support_acked; extern bool osc_pc_lpi_support_confirmed;