From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753980AbaKHSuk (ORCPT ); Sat, 8 Nov 2014 13:50:40 -0500 Received: from mail-bn1bn0102.outbound.protection.outlook.com ([157.56.110.102]:4873 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752591AbaKHSuj (ORCPT ); Sat, 8 Nov 2014 13:50:39 -0500 X-WSS-ID: 0NEQHOA-07-RIP-02 X-M-MSG: From: Oded Gabbay To: David Airlie , Alex Deucher , Jerome Glisse CC: , , "John Bridgman" , Andrew Lewycky , Oded Gabbay , Ben Goz , Evgeny Pinchuk , Alexey Skidanov Subject: [PATCH v5 21/24] amdkfd: Implement the Set Memory Policy IOCTL Date: Sat, 8 Nov 2014 20:50:04 +0200 Message-ID: <1415472608-3537-1-git-send-email-oded.gabbay@amd.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1415471865-1893-1-git-send-email-oded.gabbay@amd.com> References: <1415471865-1893-1-git-send-email-oded.gabbay@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.180.168.240] X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:165.204.84.221;CTRY:US;IPV:NLI;EFV:NLI;SFV:NSPM;SFS:(10019020)(6009001)(428002)(189002)(199003)(36756003)(104166001)(92726001)(48376002)(97736003)(50466002)(101416001)(92566001)(21056001)(44976005)(19580405001)(19580395003)(68736004)(102836001)(99396003)(76176999)(120916001)(50986999)(46102003)(31966008)(84676001)(89996001)(88136002)(64706001)(87936001)(87286001)(33646002)(77156002)(62966003)(77096003)(105586002)(229853001)(95666004)(106466001)(107046002)(20776003)(47776003)(4396001)(50226001)(93916002)(53416004)(86362001);DIR:OUT;SFP:1102;SCL:1;SRVR:BLUPR02MB196;H:atltwp01.amd.com;FPR:;MLV:sfv;PTR:InfoDomainNonexistent;MX:1;A:1;LANG:en; X-Microsoft-Antispam: UriScan:; X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;SRVR:BLUPR02MB196; X-Exchange-Antispam-Report-Test: UriScan:; X-Exchange-Antispam-Report-CFA: BCL:0;PCL:0;RULEID:;SRVR:BLUPR02MB196; X-Forefront-PRVS: 0389EDA07F Authentication-Results: spf=none (sender IP is 165.204.84.221) smtp.mailfrom=Oded.Gabbay@amd.com; X-Exchange-Antispam-Report-CFA: BCL:0;PCL:0;RULEID:;SRVR:BLUPR02MB196; X-OriginatorOrg: amd4.onmicrosoft.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andrew Lewycky Signed-off-by: Andrew Lewycky Signed-off-by: Oded Gabbay --- drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 52 +++++++++++++++++++++++++++++++- 1 file changed, 51 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index d342035..1020faf 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -35,6 +35,7 @@ #include #include #include "kfd_priv.h" +#include "kfd_device_queue_manager.h" static long kfd_ioctl(struct file *, unsigned int, unsigned long); static int kfd_open(struct inode *, struct file *); @@ -345,7 +346,56 @@ static int kfd_ioctl_update_queue(struct file *filp, struct kfd_process *p, static long kfd_ioctl_set_memory_policy(struct file *filep, struct kfd_process *p, void __user *arg) { - return -ENODEV; + struct kfd_ioctl_set_memory_policy_args args; + struct kfd_dev *dev; + int err = 0; + struct kfd_process_device *pdd; + enum cache_policy default_policy, alternate_policy; + + if (copy_from_user(&args, arg, sizeof(args))) + return -EFAULT; + + if (args.default_policy != KFD_IOC_CACHE_POLICY_COHERENT + && args.default_policy != KFD_IOC_CACHE_POLICY_NONCOHERENT) { + return -EINVAL; + } + + if (args.alternate_policy != KFD_IOC_CACHE_POLICY_COHERENT + && args.alternate_policy != KFD_IOC_CACHE_POLICY_NONCOHERENT) { + return -EINVAL; + } + + dev = kfd_device_by_id(args.gpu_id); + if (dev == NULL) + return -EINVAL; + + mutex_lock(&p->mutex); + + pdd = kfd_bind_process_to_device(dev, p); + if (IS_ERR(pdd) < 0) { + err = PTR_ERR(pdd); + goto out; + } + + default_policy = (args.default_policy == KFD_IOC_CACHE_POLICY_COHERENT) + ? cache_policy_coherent : cache_policy_noncoherent; + + alternate_policy = + (args.alternate_policy == KFD_IOC_CACHE_POLICY_COHERENT) + ? cache_policy_coherent : cache_policy_noncoherent; + + if (!dev->dqm->set_cache_memory_policy(dev->dqm, + &pdd->qpd, + default_policy, + alternate_policy, + (void __user *)args.alternate_aperture_base, + args.alternate_aperture_size)) + err = -EINVAL; + +out: + mutex_unlock(&p->mutex); + + return err; } static long kfd_ioctl_get_clock_counters(struct file *filep, -- 2.1.0