From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Martin Subject: [PATCH v3 17/28] arm64/sve: Preserve SVE registers around kernel-mode NEON use Date: Tue, 10 Oct 2017 19:38:34 +0100 Message-ID: <1507660725-7986-18-git-send-email-Dave.Martin@arm.com> References: <1507660725-7986-1-git-send-email-Dave.Martin@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 34C1749D83 for ; Tue, 10 Oct 2017 14:38:54 -0400 (EDT) Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ODSot8cmEMJZ for ; Tue, 10 Oct 2017 14:38:53 -0400 (EDT) Received: from foss.arm.com (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 345EA49DB1 for ; Tue, 10 Oct 2017 14:38:51 -0400 (EDT) In-Reply-To: <1507660725-7986-1-git-send-email-Dave.Martin@arm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu To: linux-arm-kernel@lists.infradead.org Cc: linux-arch@vger.kernel.org, Okamoto Takayuki , libc-alpha@sourceware.org, Ard Biesheuvel , Szabolcs Nagy , Catalin Marinas , Will Deacon , Richard Sandiford , kvmarm@lists.cs.columbia.edu List-Id: kvmarm@lists.cs.columbia.edu S2VybmVsLW1vZGUgTkVPTiB3aWxsIGNvcnJ1cHQgdGhlIFNWRSB2ZWN0b3IgcmVnaXN0ZXJzLCBk dWUgdG8gdGhlCndheSB0aGV5IGFsaWFzIHRoZSBGUFNJTUQgdmVjdG9yIHJlZ2lzdGVycyBpbiB0 aGUgaGFyZHdhcmUuCgpUaGlzIHBhdGNoIGVuc3VyZXMgdGhhdCBhbnkgbGl2ZSBTVkUgcmVnaXN0 ZXIgY29udGVudCBmb3IgdGhlIHRhc2sKaXMgc2F2ZWQgYnkga2VybmVsX25lb25fYmVnaW4oKS4g IFRoZSBkYXRhIHdpbGwgYmUgcmVzdG9yZWQgaW4gdGhlCnVzdWFsIHdheSBvbiByZXR1cm4gdG8g dXNlcnNwYWNlLgoKU2lnbmVkLW9mZi1ieTogRGF2ZSBNYXJ0aW4gPERhdmUuTWFydGluQGFybS5j b20+ClJldmlld2VkLWJ5OiBBcmQgQmllc2hldXZlbCA8YXJkLmJpZXNoZXV2ZWxAbGluYXJvLm9y Zz4KUmV2aWV3ZWQtYnk6IEFsZXggQmVubsOpZSA8YWxleC5iZW5uZWVAbGluYXJvLm9yZz4KLS0t CiBhcmNoL2FybTY0L2tlcm5lbC9mcHNpbWQuYyB8IDYgKysrKy0tCiAxIGZpbGUgY2hhbmdlZCwg NCBpbnNlcnRpb25zKCspLCAyIGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2FyY2gvYXJtNjQv a2VybmVsL2Zwc2ltZC5jIGIvYXJjaC9hcm02NC9rZXJuZWwvZnBzaW1kLmMKaW5kZXggNTY3M2Y1 MC4uYjFkMzgzYSAxMDA2NDQKLS0tIGEvYXJjaC9hcm02NC9rZXJuZWwvZnBzaW1kLmMKKysrIGIv YXJjaC9hcm02NC9rZXJuZWwvZnBzaW1kLmMKQEAgLTkwOSw4ICs5MDksMTAgQEAgdm9pZCBrZXJu ZWxfbmVvbl9iZWdpbih2b2lkKQogCV9fdGhpc19jcHVfd3JpdGUoa2VybmVsX25lb25fYnVzeSwg dHJ1ZSk7CiAKIAkvKiBTYXZlIHVuc2F2ZWQgdGFzayBmcHNpbWQgc3RhdGUsIGlmIGFueTogKi8K LQlpZiAoY3VycmVudC0+bW0gJiYgIXRlc3RfYW5kX3NldF90aHJlYWRfZmxhZyhUSUZfRk9SRUlH Tl9GUFNUQVRFKSkKLQkJZnBzaW1kX3NhdmVfc3RhdGUoJmN1cnJlbnQtPnRocmVhZC5mcHNpbWRf c3RhdGUpOworCWlmIChjdXJyZW50LT5tbSkgeworCQl0YXNrX2Zwc2ltZF9zYXZlKCk7CisJCXNl dF90aHJlYWRfZmxhZyhUSUZfRk9SRUlHTl9GUFNUQVRFKTsKKwl9CiAKIAkvKiBJbnZhbGlkYXRl IGFueSB0YXNrIHN0YXRlIHJlbWFpbmluZyBpbiB0aGUgZnBzaW1kIHJlZ3M6ICovCiAJX190aGlz X2NwdV93cml0ZShmcHNpbWRfbGFzdF9zdGF0ZSwgTlVMTCk7Ci0tIAoyLjEuNAoKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18Ka3ZtYXJtIG1haWxpbmcgbGlz dAprdm1hcm1AbGlzdHMuY3MuY29sdW1iaWEuZWR1Cmh0dHBzOi8vbGlzdHMuY3MuY29sdW1iaWEu ZWR1L21haWxtYW4vbGlzdGluZm8va3ZtYXJtCg==