From patchwork Tue Feb 1 10:41:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 12731525 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 36A26C433F5 for ; Tue, 1 Feb 2022 10:42:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3BE0810EBE0; Tue, 1 Feb 2022 10:42:04 +0000 (UTC) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2A29F10E8F0; Tue, 1 Feb 2022 10:42:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1643712122; x=1675248122; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=OoBFTfs1J+oYvnyLZYoUitLoXhgOgOmTeuWX+fnLglc=; b=AAR4XZS3ARZKr1AfqzWakXDNhsYbwAM4gANWF2mQrMAks50sUlLD7+2h 6bhNTYe/kZpW9AvKo95dhUDstNxtx7Qgf0PmFX0tfBQp/Ff8/9j7QG8zj edTvNxHuHkYMaZEY9oA5s2rAUj4Q7geWUsCTwcQUc7sCzQAKTFyg9IeAN lxWURMufKLrqhNpy9qhqYyiH2xa/1FCPZGuqbnN79JI3XOW3YczTEFhLX 73k/vAPNyc1WxDHLh9YTKfJmeCXwIW7jNqz2OG32rPKAc1tCbEt3hhY/5 wyi9anxB665JE21C2FsnTvA4dPguH9x9eVq+QF/Q96k4SmSgb4geLyVfg Q==; X-IronPort-AV: E=McAfee;i="6200,9189,10244"; a="334020618" X-IronPort-AV: E=Sophos;i="5.88,333,1635231600"; d="scan'208";a="334020618" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Feb 2022 02:42:01 -0800 X-IronPort-AV: E=Sophos;i="5.88,333,1635231600"; d="scan'208";a="523011235" Received: from ramaling-i9x.iind.intel.com ([10.203.144.108]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Feb 2022 02:41:59 -0800 From: Ramalingam C To: dri-devel , intel-gfx Date: Tue, 1 Feb 2022 16:11:23 +0530 Message-Id: <20220201104132.3050-11-ramalingam.c@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220201104132.3050-1-ramalingam.c@intel.com> References: <20220201104132.3050-1-ramalingam.c@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v5 10/19] drm/i915/xehpsdv: Add has_flat_ccs to device info 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: CQ Tang , Matthew Auld Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: CQ Tang Platforms of XeHP and beyond support 3D surface (buffer) compression and various compression formats. This is accomplished by an additional compression control state (CCS) stored for each surface. Gen 12 devices(TGL family and DG1) stores compression states in a separate region of memory. It is managed by user-space and has an associated set of user-space managed page tables used by hardware for address translation. In Xe HP and beyond (XEHPSDV, DG2, etc), there is a new feature introduced i.e Flat CCS. It replaced AUX page tables with a flat indexed region of device memory for storing compression states. Cc: Joonas Lahtinen Cc: Matthew Auld Signed-off-by: CQ Tang Signed-off-by: Ramalingam C Reviewed-by: Matthew Auld --- drivers/gpu/drm/i915/i915_drv.h | 6 ++++++ drivers/gpu/drm/i915/i915_pci.c | 1 + drivers/gpu/drm/i915/intel_device_info.h | 1 + 3 files changed, 8 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 4afdfa5fd3b3..384977798c8e 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1528,6 +1528,12 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915, #define HAS_REGION(i915, i) (INTEL_INFO(i915)->memory_regions & (i)) #define HAS_LMEM(i915) HAS_REGION(i915, REGION_LMEM) +/* + * Platform has the dedicated compression control state for each lmem surfaces + * stored in lmem to support the 3D and media compression formats. + */ +#define HAS_FLAT_CCS(dev_priv) (INTEL_INFO(dev_priv)->has_flat_ccs) + #define HAS_GT_UC(dev_priv) (INTEL_INFO(dev_priv)->has_gt_uc) #define HAS_POOLED_EU(dev_priv) (INTEL_INFO(dev_priv)->has_pooled_eu) diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index ce6ae6a3cbdf..3976482582b8 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -1003,6 +1003,7 @@ static const struct intel_device_info adl_p_info = { XE_HP_PAGE_SIZES, \ .dma_mask_size = 46, \ .has_64bit_reloc = 1, \ + .has_flat_ccs = 1, \ .has_global_mocs = 1, \ .has_gt_uc = 1, \ .has_llc = 1, \ diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h index d8da40d01dca..ef7c7c988b7b 100644 --- a/drivers/gpu/drm/i915/intel_device_info.h +++ b/drivers/gpu/drm/i915/intel_device_info.h @@ -133,6 +133,7 @@ enum intel_ppgtt_type { func(needs_compact_pt); \ func(gpu_reset_clobbers_display); \ func(has_reset_engine); \ + func(has_flat_ccs); \ func(has_global_mocs); \ func(has_gt_uc); \ func(has_guc_deprivilege); \