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 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 BDEB1CCFA13 for ; Thu, 26 Sep 2024 11:21:57 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8543D10E316; Thu, 26 Sep 2024 11:21:57 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="hmmWSU51"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) by gabe.freedesktop.org (Postfix) with ESMTPS id BAC4510E316; Thu, 26 Sep 2024 11:21:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1727349717; x=1758885717; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=JfZoGbeWIp+Y70KIVGEfEHIcchRuV31Zyz9EgnwleuQ=; b=hmmWSU51ImWPN3YrSjV82KJzGS+qp006RhxbunqJDtwZJAi5Zi12LGpe bVKXhngW+zeGfXFQrwFf57n6Md6/JzXDac95QLwfBN4nexNAE0wJk/Tx2 SsyAODCfIN/ekQHEmJvxS9XHhfJfrjHOzebzvSOlFmbuMzktIARmpNGQH tizD8f6MX32wPAHs/FCdx0+eP/4qaRg4pi3rd11M0jl7l1zXbNRmEdfBY d3kguH+VdnpcUg0lmSp8FrQ/m/1sIIjufVY8bvuIrlssccQvE4ZAaSsml 2TS9k5SE42p+VDTJoz70irSzULcx9Xzll/HUv/jFM6r5FeiPEVTLPxpDQ A==; X-CSE-ConnectionGUID: ecGcPtwvTPOwzD1c8ODW6Q== X-CSE-MsgGUID: DNRuLiC8Qei8kqTX2a1wpw== X-IronPort-AV: E=McAfee;i="6700,10204,11206"; a="37001159" X-IronPort-AV: E=Sophos;i="6.10,155,1719903600"; d="scan'208";a="37001159" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Sep 2024 04:21:57 -0700 X-CSE-ConnectionGUID: FDrmuz/dSSGekDLEyX1jVQ== X-CSE-MsgGUID: fmBKVXltTuGdz8xUYii09A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,155,1719903600"; d="scan'208";a="72256788" Received: from stinkpipe.fi.intel.com (HELO stinkbox) ([10.237.72.74]) by fmviesa008.fm.intel.com with SMTP; 26 Sep 2024 04:21:54 -0700 Received: by stinkbox (sSMTP sendmail emulation); Thu, 26 Sep 2024 14:21:53 +0300 Date: Thu, 26 Sep 2024 14:21:53 +0300 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= To: Ankit Nautiyal Cc: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, suraj.kandpal@intel.com Subject: Re: [PATCH 09/15] drm/i915: Implement hw state readout and checks for ultrajoiner Message-ID: References: <20240926072638.3689367-1-ankit.k.nautiyal@intel.com> <20240926072638.3689367-10-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20240926072638.3689367-10-ankit.k.nautiyal@intel.com> X-Patchwork-Hint: comment X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" On Thu, Sep 26, 2024 at 12:56:32PM +0530, Ankit Nautiyal wrote: > From: Stanislav Lisovskiy > > Ultrajoiner mode has some new bits and states to be > read out from the hw. Lets make changes accordingly. > > v2: Fix checkpatch warnings. (Ankit) > v3: Add separate functions for computing expected secondary_big/ultrajoiner > pipes. (Ankit) > v4: > -Streamline the helpers for ultrajoiner. (Ville) > -Add fixup to accommodate PIPED check for ultrajoiner. (Ville) > -Add more Ultrajoiner drm_WARNs. (Ville) > v5: Remove spurious newline. (Ville) > > Signed-off-by: Stanislav Lisovskiy > Signed-off-by: Ankit Nautiyal Reviewed-by: Ville Syrjälä > --- > drivers/gpu/drm/i915/display/intel_display.c | 88 +++++++++++++++++++ > .../gpu/drm/i915/display/intel_vdsc_regs.h | 2 + > 2 files changed, 90 insertions(+) > > diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c > index ea259b142786..6d8143f62110 100644 > --- a/drivers/gpu/drm/i915/display/intel_display.c > +++ b/drivers/gpu/drm/i915/display/intel_display.c > @@ -3670,15 +3670,77 @@ static u8 get_joiner_primary_pipe(enum pipe pipe, u8 primary_pipes) > return primary_pipes ? BIT(fls(primary_pipes) - 1) : 0; > } > > +static u8 expected_ultrajoiner_secondary_pipes(u8 ultrajoiner_primary_pipes) > +{ > + return expected_secondary_pipes(ultrajoiner_primary_pipes, 4); > +} > + > +static u8 fixup_ultrajoiner_secondary_pipes(u8 ultrajoiner_primary_pipes, > + u8 ultrajoiner_secondary_pipes) > +{ > + return ultrajoiner_secondary_pipes | ultrajoiner_primary_pipes << 3; > +} > + > +static void enabled_ultrajoiner_pipes(struct drm_i915_private *i915, > + u8 *primary_pipes, u8 *secondary_pipes) > +{ > + struct intel_crtc *crtc; > + > + *primary_pipes = 0; > + *secondary_pipes = 0; > + > + if (!HAS_ULTRAJOINER(i915)) > + return; > + > + for_each_intel_crtc_in_pipe_mask(&i915->drm, crtc, > + joiner_pipes(i915)) { > + enum intel_display_power_domain power_domain; > + enum pipe pipe = crtc->pipe; > + intel_wakeref_t wakeref; > + > + power_domain = intel_dsc_power_domain(crtc, (enum transcoder)pipe); > + with_intel_display_power_if_enabled(i915, power_domain, wakeref) { > + u32 tmp = intel_de_read(i915, ICL_PIPE_DSS_CTL1(pipe)); > + > + if (!(tmp & ULTRA_JOINER_ENABLE)) > + continue; > + > + if (tmp & PRIMARY_ULTRA_JOINER_ENABLE) > + *primary_pipes |= BIT(pipe); > + else > + *secondary_pipes |= BIT(pipe); > + } > + } > +} > + > static void enabled_joiner_pipes(struct drm_i915_private *dev_priv, > enum pipe pipe, > u8 *primary_pipes, u8 *secondary_pipes) > { > struct intel_display *display = to_intel_display(&dev_priv->drm); > + u8 primary_ultrajoiner_pipes; > u8 primary_uncompressed_joiner_pipes, primary_bigjoiner_pipes; > + u8 secondary_ultrajoiner_pipes; > u8 secondary_uncompressed_joiner_pipes, secondary_bigjoiner_pipes; > + u8 ultrajoiner_pipes; > u8 uncompressed_joiner_pipes, bigjoiner_pipes; > > + enabled_ultrajoiner_pipes(dev_priv, &primary_ultrajoiner_pipes, > + &secondary_ultrajoiner_pipes); > + /* > + * For some strange reason the last pipe in the set of four > + * shouldn't have ultrajoiner enable bit set in hardware. > + * Set the bit anyway to make life easier. > + */ > + drm_WARN_ON(&dev_priv->drm, > + expected_secondary_pipes(primary_ultrajoiner_pipes, 3) != > + secondary_ultrajoiner_pipes); > + secondary_ultrajoiner_pipes = > + fixup_ultrajoiner_secondary_pipes(primary_ultrajoiner_pipes, > + secondary_ultrajoiner_pipes); > + > + drm_WARN_ON(&dev_priv->drm, (primary_ultrajoiner_pipes & secondary_ultrajoiner_pipes) != 0); > + > enabled_uncompressed_joiner_pipes(display, &primary_uncompressed_joiner_pipes, > &secondary_uncompressed_joiner_pipes); > > @@ -3691,10 +3753,21 @@ static void enabled_joiner_pipes(struct drm_i915_private *dev_priv, > drm_WARN_ON(display->drm, > (primary_bigjoiner_pipes & secondary_bigjoiner_pipes) != 0); > > + ultrajoiner_pipes = primary_ultrajoiner_pipes | secondary_ultrajoiner_pipes; > uncompressed_joiner_pipes = primary_uncompressed_joiner_pipes | > secondary_uncompressed_joiner_pipes; > bigjoiner_pipes = primary_bigjoiner_pipes | secondary_bigjoiner_pipes; > > + drm_WARN(display->drm, (ultrajoiner_pipes & bigjoiner_pipes) != ultrajoiner_pipes, > + "Ultrajoiner pipes(%#x) should be bigjoiner pipes(%#x)\n", > + ultrajoiner_pipes, bigjoiner_pipes); > + > + drm_WARN(display->drm, secondary_ultrajoiner_pipes != > + expected_ultrajoiner_secondary_pipes(primary_ultrajoiner_pipes), > + "Wrong secondary ultrajoiner pipes(expected %#x, current %#x)\n", > + expected_ultrajoiner_secondary_pipes(primary_ultrajoiner_pipes), > + secondary_ultrajoiner_pipes); > + > drm_WARN(display->drm, (uncompressed_joiner_pipes & bigjoiner_pipes) != 0, > "Uncomressed joiner pipes(%#x) and bigjoiner pipes(%#x) can't intersect\n", > uncompressed_joiner_pipes, bigjoiner_pipes); > @@ -3714,6 +3787,21 @@ static void enabled_joiner_pipes(struct drm_i915_private *dev_priv, > *primary_pipes = 0; > *secondary_pipes = 0; > > + if (ultrajoiner_pipes & BIT(pipe)) { > + *primary_pipes = get_joiner_primary_pipe(pipe, primary_ultrajoiner_pipes); > + *secondary_pipes = secondary_ultrajoiner_pipes & > + expected_ultrajoiner_secondary_pipes(*primary_pipes); > + > + drm_WARN(display->drm, > + expected_ultrajoiner_secondary_pipes(*primary_pipes) != > + *secondary_pipes, > + "Wrong ultrajoiner secondary pipes for primary_pipes %#x (expected %#x, current %#x)\n", > + *primary_pipes, > + expected_ultrajoiner_secondary_pipes(*primary_pipes), > + *secondary_pipes); > + return; > + } > + > if (uncompressed_joiner_pipes & BIT(pipe)) { > *primary_pipes = get_joiner_primary_pipe(pipe, primary_uncompressed_joiner_pipes); > *secondary_pipes = secondary_uncompressed_joiner_pipes & > diff --git a/drivers/gpu/drm/i915/display/intel_vdsc_regs.h b/drivers/gpu/drm/i915/display/intel_vdsc_regs.h > index f921ad67b587..bf32a3b46fb1 100644 > --- a/drivers/gpu/drm/i915/display/intel_vdsc_regs.h > +++ b/drivers/gpu/drm/i915/display/intel_vdsc_regs.h > @@ -37,6 +37,8 @@ > #define SPLITTER_CONFIGURATION_MASK REG_GENMASK(26, 25) > #define SPLITTER_CONFIGURATION_2_SEGMENT REG_FIELD_PREP(SPLITTER_CONFIGURATION_MASK, 0) > #define SPLITTER_CONFIGURATION_4_SEGMENT REG_FIELD_PREP(SPLITTER_CONFIGURATION_MASK, 1) > +#define ULTRA_JOINER_ENABLE REG_BIT(23) > +#define PRIMARY_ULTRA_JOINER_ENABLE REG_BIT(22) > #define UNCOMPRESSED_JOINER_PRIMARY (1 << 21) > #define UNCOMPRESSED_JOINER_SECONDARY (1 << 20) > > -- > 2.45.2 -- Ville Syrjälä Intel