From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 75991C4361B for ; Tue, 8 Dec 2020 15:58:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 37B3323A9B for ; Tue, 8 Dec 2020 15:58:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730272AbgLHP6e (ORCPT ); Tue, 8 Dec 2020 10:58:34 -0500 Received: from mail.kernel.org ([198.145.29.99]:51296 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729948AbgLHP6e (ORCPT ); Tue, 8 Dec 2020 10:58:34 -0500 From: Oded Gabbay Authentication-Results: mail.kernel.org; dkim=permerror (bad message/signature format) To: linux-kernel@vger.kernel.org Cc: SW_Drivers@habana.ai, Ohad Sharabi Subject: [PATCH] habanalabs/goya: move mmu_prepare to context init Date: Tue, 8 Dec 2020 17:57:48 +0200 Message-Id: <20201208155749.5759-1-ogabbay@kernel.org> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ohad Sharabi Currently mmu_prepare is located at context switch. Since we support a single context, no reason to reconfigure the MMU registers every context switch. Signed-off-by: Ohad Sharabi Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- drivers/misc/habanalabs/goya/goya.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c index 6ae34905d34f..dc32091d9b4b 100644 --- a/drivers/misc/habanalabs/goya/goya.c +++ b/drivers/misc/habanalabs/goya/goya.c @@ -4876,8 +4876,6 @@ int goya_context_switch(struct hl_device *hdev, u32 asid) WREG32(mmTPC_PLL_CLK_RLX_0, 0x200020); - goya_mmu_prepare(hdev, asid); - goya_clear_sm_regs(hdev); return 0; @@ -5312,6 +5310,9 @@ static int goya_get_eeprom_data(struct hl_device *hdev, void *data, static int goya_ctx_init(struct hl_ctx *ctx) { + if (ctx->asid != HL_KERNEL_ASID_ID) + goya_mmu_prepare(ctx->hdev, ctx->asid); + return 0; } -- 2.17.1