From patchwork Wed Jul 13 09:30:08 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 12916339 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6B447C433EF for ; Wed, 13 Jul 2022 09:30:42 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AF3B698A6F; Wed, 13 Jul 2022 09:30:24 +0000 (UTC) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by gabe.freedesktop.org (Postfix) with ESMTPS id 236FC98A6F; Wed, 13 Jul 2022 09:30:24 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 8802961CB4; Wed, 13 Jul 2022 09:30:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 26A02C341D9; Wed, 13 Jul 2022 09:30:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1657704622; bh=numqK226xRmWDfGwHz4d5UBb1H2QKPgM+SkFWYMj/wI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SAbvoxeX0Ggt9W/GCv9SVYOeovlGpOZD7jsBImb7PhuMpPL2NV8AhwQ++WOQu4lrB SUFyClvGEs4Jh5lWKYfxQh10iKBOLOeePFezzCpaFRTjbNYFrfs1Hk1hfPScgpx01h U8CkhvAz/xu6hzblOMsgFz0qlGbul9WvQZjHYE3/1RpfcMB1Qlr+P02h3BFpKqcjHS sS20FeC369U3qu6cIZ6Dgj4d1dEaOEH60H2bj5eHrKshkRYqww6UBRRXQOn1GXeKyr Eyf4Z9cki4QvvUYKZtXqo8fxAGZXuhkmnP5p4jUvpuEuQAuv9m7PFCVY4bfaWGQw+k FPVMJi2zh3RpQ== Received: from mchehab by mail.kernel.org with local (Exim 4.95) (envelope-from ) id 1oBYhH-0050Lg-PO; Wed, 13 Jul 2022 10:30:19 +0100 From: Mauro Carvalho Chehab To: Date: Wed, 13 Jul 2022 10:30:08 +0100 Message-Id: X-Mailer: git-send-email 2.36.1 In-Reply-To: References: MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 11/21] drm/i915/guc: document the TLB invalidation struct members X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alan Previn , David Airlie , dri-devel@lists.freedesktop.org, Lucas De Marchi , linux-kernel@vger.kernel.org, Rodrigo Vivi , Mauro Carvalho Chehab , intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Add documentation for the 3 new members of struct intel_guc that are used to handle TLB cache invalidation logic. Signed-off-by: Mauro Carvalho Chehab --- See [PATCH 00/21] at: https://lore.kernel.org/all/cover.1657703926.git.mchehab@kernel.org/ drivers/gpu/drm/i915/gt/uc/intel_guc.h | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h index f82a121b0838..73c46d405dc4 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h @@ -76,11 +76,23 @@ struct intel_guc { */ atomic_t outstanding_submission_g2h; - /** @interrupts: pointers to GuC interrupt-managing functions. */ + /** + * @tlb_lookup: TLB cache invalidation lookup table. + */ struct xarray tlb_lookup; + + /** + * @serial_slot: index to the latest allocated element at the + * @tlb_lookup xarray. + */ u32 serial_slot; + + /** + * @next_seqno: next index to be allocated at the @tlb_lookup xarray. + */ u32 next_seqno; + /** @interrupts: pointers to GuC interrupt-managing functions. */ struct { void (*reset)(struct intel_guc *guc); void (*enable)(struct intel_guc *guc);