From patchwork Thu Sep 9 01:53:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Airlie X-Patchwork-Id: 12482287 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=-10.7 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 855F2C433FE for ; Thu, 9 Sep 2021 01:54:13 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 53B3960187 for ; Thu, 9 Sep 2021 01:54:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 53B3960187 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 243FD6E43B; Thu, 9 Sep 2021 01:54:08 +0000 (UTC) Received: from us-smtp-delivery-44.mimecast.com (us-smtp-delivery-44.mimecast.com [205.139.111.44]) by gabe.freedesktop.org (Postfix) with ESMTPS id CC2166E43D for ; Thu, 9 Sep 2021 01:54:03 +0000 (UTC) Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-380-c82VZ9JUNoW3y0UwwuCJjA-1; Wed, 08 Sep 2021 21:53:59 -0400 X-MC-Unique: c82VZ9JUNoW3y0UwwuCJjA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id DDFF95074B; Thu, 9 Sep 2021 01:53:58 +0000 (UTC) Received: from dreadlord-bne-redhat-com.bne.redhat.com (unknown [10.64.0.157]) by smtp.corp.redhat.com (Postfix) with ESMTP id 58BC519736; Thu, 9 Sep 2021 01:53:57 +0000 (UTC) From: Dave Airlie To: intel-gfx@lists.freedesktop.org Cc: jani.nikula@linux.intel.com, Dave Airlie , Jani Nikula Date: Thu, 9 Sep 2021 11:53:13 +1000 Message-Id: <20210909015322.2988500-15-airlied@gmail.com> In-Reply-To: <20210909015322.2988500-1-airlied@gmail.com> References: <20210909015322.2988500-1-airlied@gmail.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: gmail.com Subject: [Intel-gfx] [PATCH 14/23] drm/i915: constify fdi link training vtable 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Dave Airlie Put the vtable into ro memory. Reviewed-by: Jani Nikula Signed-off-by: Dave Airlie --- drivers/gpu/drm/i915/display/intel_fdi.c | 20 ++++++++++++++++---- drivers/gpu/drm/i915/i915_drv.h | 2 +- 2 files changed, 17 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_fdi.c b/drivers/gpu/drm/i915/display/intel_fdi.c index 94bb7e039fe7..148fb50035ff 100644 --- a/drivers/gpu/drm/i915/display/intel_fdi.c +++ b/drivers/gpu/drm/i915/display/intel_fdi.c @@ -15,7 +15,7 @@ void intel_fdi_link_train(struct intel_crtc *crtc, { struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - dev_priv->fdi_funcs.fdi_link_train(crtc, crtc_state); + dev_priv->fdi_funcs->fdi_link_train(crtc, crtc_state); } /* units of 100MHz */ @@ -1013,15 +1013,27 @@ void lpt_fdi_program_mphy(struct drm_i915_private *dev_priv) intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY); } +static const struct intel_fdi_funcs ilk_funcs = { + .fdi_link_train = ilk_fdi_link_train, +}; + +static const struct intel_fdi_funcs gen6_funcs = { + .fdi_link_train = gen6_fdi_link_train, +}; + +static const struct intel_fdi_funcs ivb_funcs = { + .fdi_link_train = ivb_manual_fdi_link_train, +}; + void intel_fdi_init_hook(struct drm_i915_private *dev_priv) { if (IS_IRONLAKE(dev_priv)) { - dev_priv->fdi_funcs.fdi_link_train = ilk_fdi_link_train; + dev_priv->fdi_funcs = &ilk_funcs; } else if (IS_SANDYBRIDGE(dev_priv)) { - dev_priv->fdi_funcs.fdi_link_train = gen6_fdi_link_train; + dev_priv->fdi_funcs = &gen6_funcs; } else if (IS_IVYBRIDGE(dev_priv)) { /* FIXME: detect B0+ stepping and use auto training */ - dev_priv->fdi_funcs.fdi_link_train = ivb_manual_fdi_link_train; + dev_priv->fdi_funcs = &ivb_funcs; } } diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 575c46df5336..bb44ef4f6356 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -991,7 +991,7 @@ struct drm_i915_private { struct intel_hotplug_funcs hotplug_funcs; /* fdi display functions */ - struct intel_fdi_funcs fdi_funcs; + const struct intel_fdi_funcs *fdi_funcs; /* display pll funcs */ struct intel_dpll_funcs dpll_funcs;