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=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 307FCC00A89 for ; Mon, 2 Nov 2020 19:47:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BE65820786 for ; Mon, 2 Nov 2020 19:47:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604346428; bh=UZnKM1AUb7EaqBHgj4FCULLOWCXRSjMNVc4G/ObDoNE=; h=From:To:Cc:Subject:Date:List-ID:From; b=ul0zIbbNnJJsiBlzJhgyrLOoJc56aUmNutMplBGAE8xyslcekC0LUgbEgV5p/P3oD A/PDu6DSt41SytEPmEK7WJclYP/ny8QhhRLYjuRkHEJCdR23+fjK2tdJuDCeYdRfm/ ZZqjs5rEe5j0Yl3/HUFwSclglPQP6oRmyKcKVeDo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726654AbgKBTrC (ORCPT ); Mon, 2 Nov 2020 14:47:02 -0500 Received: from mail.kernel.org ([198.145.29.99]:37876 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726236AbgKBTqX (ORCPT ); Mon, 2 Nov 2020 14:46:23 -0500 Received: from ogabbay-VM.habana-labs.com (unknown [213.57.90.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4D39620731; Mon, 2 Nov 2020 19:46:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604346382; bh=UZnKM1AUb7EaqBHgj4FCULLOWCXRSjMNVc4G/ObDoNE=; h=From:To:Cc:Subject:Date:From; b=M3dR8bkZJ7Laknb2qofkVg5aGLiVWt9nvAIWZKcTpT92j7cVfnXnzMmfCbP9VCMnu pFQ7akhZ7qFOtdNrRPfY4cKZ9igZS14uy6NWzJEgL+ZY+BXnxUzux4NjIOxb4InMC9 SZKtZGB+PLGvBEQ7ANwG9Drkr25hmvCopGV47IKM= From: Oded Gabbay To: linux-kernel@vger.kernel.org Cc: SW_Drivers@habana.ai, Ofir Bitton Subject: [PATCH] habanalabs/gaudi: move mmu_prepare to context init Date: Mon, 2 Nov 2020 21:46:16 +0200 Message-Id: <20201102194616.27893-1-ogabbay@kernel.org> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ofir Bitton 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: Ofir Bitton Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- drivers/misc/habanalabs/gaudi/gaudi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index 5f65a1691551..2910f427c716 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -4505,8 +4505,6 @@ static int gaudi_context_switch(struct hl_device *hdev, u32 asid) return rc; } - gaudi_mmu_prepare(hdev, asid); - gaudi_restore_user_registers(hdev); return 0; @@ -6359,6 +6357,8 @@ static enum hl_device_hw_state gaudi_get_hw_state(struct hl_device *hdev) static int gaudi_ctx_init(struct hl_ctx *ctx) { + gaudi_mmu_prepare(ctx->hdev, ctx->asid); + return 0; } -- 2.17.1