From patchwork Thu Dec 2 18:15:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Matthew Auld X-Patchwork-Id: 12653223 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 A07BEC433FE for ; Thu, 2 Dec 2021 18:15:45 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0A1A66EA73; Thu, 2 Dec 2021 18:15:38 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 828906E135; Thu, 2 Dec 2021 18:15:36 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10185"; a="236575926" X-IronPort-AV: E=Sophos;i="5.87,282,1631602800"; d="scan'208";a="236575926" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Dec 2021 10:15:36 -0800 X-IronPort-AV: E=Sophos;i="5.87,282,1631602800"; d="scan'208";a="477995700" Received: from cmichel-mobl.ger.corp.intel.com (HELO mwauld-desk1.intel.com) ([10.252.25.51]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Dec 2021 10:15:34 -0800 From: Matthew Auld To: intel-gfx@lists.freedesktop.org Subject: [PATCH 2/8] drm/i915/gtt: add xehpsdv_ppgtt_insert_entry Date: Thu, 2 Dec 2021 18:15:09 +0000 Message-Id: <20211202181515.2794397-2-matthew.auld@intel.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211202181515.2794397-1-matthew.auld@intel.com> References: <20211202181515.2794397-1-matthew.auld@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?Thomas_Hellstr=C3=B6m?= , dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" If this is LMEM then we get a 32 entry PT, with each PTE pointing to some 64K block of memory, otherwise it's just the usual 512 entry PT. This very much assumes the caller knows what they are doing. Signed-off-by: Matthew Auld Cc: Thomas Hellström Cc: Ramalingam C --- drivers/gpu/drm/i915/gt/gen8_ppgtt.c | 50 ++++++++++++++++++++++++++-- 1 file changed, 48 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c index bd3ca0996a23..312b2267bf87 100644 --- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c +++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c @@ -728,13 +728,56 @@ static void gen8_ppgtt_insert_entry(struct i915_address_space *vm, gen8_pdp_for_page_index(vm, idx); struct i915_page_directory *pd = i915_pd_entry(pdp, gen8_pd_index(idx, 2)); + struct i915_page_table *pt = i915_pt_entry(pd, gen8_pd_index(idx, 1)); gen8_pte_t *vaddr; - vaddr = px_vaddr(i915_pt_entry(pd, gen8_pd_index(idx, 1))); + GEM_BUG_ON(pt->is_compact); + + vaddr = px_vaddr(pt); vaddr[gen8_pd_index(idx, 0)] = gen8_pte_encode(addr, level, flags); clflush_cache_range(&vaddr[gen8_pd_index(idx, 0)], sizeof(*vaddr)); } +static void __xehpsdv_ppgtt_insert_entry_lm(struct i915_address_space *vm, + dma_addr_t addr, + u64 offset, + enum i915_cache_level level, + u32 flags) +{ + u64 idx = offset >> GEN8_PTE_SHIFT; + struct i915_page_directory * const pdp = + gen8_pdp_for_page_index(vm, idx); + struct i915_page_directory *pd = + i915_pd_entry(pdp, gen8_pd_index(idx, 2)); + struct i915_page_table *pt = i915_pt_entry(pd, gen8_pd_index(idx, 1)); + gen8_pte_t *vaddr; + + GEM_BUG_ON(!IS_ALIGNED(addr, SZ_64K)); + GEM_BUG_ON(!IS_ALIGNED(offset, SZ_64K)); + + if (!pt->is_compact) { + vaddr = px_vaddr(pd); + vaddr[gen8_pd_index(idx, 1)] |= GEN12_PDE_64K; + pt->is_compact = true; + } + + vaddr = px_vaddr(pt); + vaddr[gen8_pd_index(idx, 0) / 16] = gen8_pte_encode(addr, level, flags); +} + +static void xehpsdv_ppgtt_insert_entry(struct i915_address_space *vm, + dma_addr_t addr, + u64 offset, + enum i915_cache_level level, + u32 flags) +{ + if (flags & PTE_LM) + return __xehpsdv_ppgtt_insert_entry_lm(vm, addr, offset, + level, flags); + + return gen8_ppgtt_insert_entry(vm, addr, offset, level, flags); +} + static int gen8_init_scratch(struct i915_address_space *vm) { u32 pte_flags; @@ -937,7 +980,10 @@ struct i915_ppgtt *gen8_ppgtt_create(struct intel_gt *gt, ppgtt->vm.bind_async_flags = I915_VMA_LOCAL_BIND; ppgtt->vm.insert_entries = gen8_ppgtt_insert; - ppgtt->vm.insert_page = gen8_ppgtt_insert_entry; + if (HAS_64K_PAGES(gt->i915)) + ppgtt->vm.insert_page = xehpsdv_ppgtt_insert_entry; + else + ppgtt->vm.insert_page = gen8_ppgtt_insert_entry; ppgtt->vm.allocate_va_range = gen8_ppgtt_alloc; ppgtt->vm.clear_range = gen8_ppgtt_clear; ppgtt->vm.foreach = gen8_ppgtt_foreach;