From patchwork Thu Jan 22 17:01:28 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michel Thierry X-Patchwork-Id: 5686901 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 56FF39F4DC for ; Thu, 22 Jan 2015 17:01:37 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 103B020259 for ; Thu, 22 Jan 2015 17:01:36 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 5208320265 for ; Thu, 22 Jan 2015 17:01:34 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BCF0B72097; Thu, 22 Jan 2015 09:01:33 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id E821E72095 for ; Thu, 22 Jan 2015 09:01:31 -0800 (PST) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga101.jf.intel.com with ESMTP; 22 Jan 2015 09:01:23 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.09,450,1418112000"; d="scan'208";a="654995062" Received: from michelth-linux.isw.intel.com ([10.102.226.150]) by fmsmga001.fm.intel.com with ESMTP; 22 Jan 2015 09:01:21 -0800 From: Michel Thierry To: intel-gfx@lists.freedesktop.org Date: Thu, 22 Jan 2015 17:01:28 +0000 Message-Id: <1421946106-7921-7-git-send-email-michel.thierry@intel.com> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1421946106-7921-1-git-send-email-michel.thierry@intel.com> References: <1418922621-25818-1-git-send-email-michel.thierry@intel.com> <1421946106-7921-1-git-send-email-michel.thierry@intel.com> Subject: [Intel-gfx] [PATCH v4 06/24] drm/i915: Complete page table structures X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Ben Widawsky Move the remaining members over to the new page table structures. This can be squashed with the previous commit if desire. The reasoning is the same as that patch. I simply felt it is easier to review if split. v2: In lrc: s/ppgtt->pd_dma_addr[i]/ppgtt->pdp.page_directory[i].daddr/ v3: Rebase. Signed-off-by: Ben Widawsky Signed-off-by: Michel Thierry (v2, v3) --- drivers/gpu/drm/i915/i915_debugfs.c | 2 +- drivers/gpu/drm/i915/i915_gem_gtt.c | 85 +++++++++++++------------------------ drivers/gpu/drm/i915/i915_gem_gtt.h | 14 +++--- drivers/gpu/drm/i915/intel_lrc.c | 16 +++---- 4 files changed, 45 insertions(+), 72 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index e515aad..60f91bc 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2153,7 +2153,7 @@ static void gen6_ppgtt_info(struct seq_file *m, struct drm_device *dev) struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt; seq_puts(m, "aliasing PPGTT:\n"); - seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd_offset); + seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd.pd_offset); ppgtt->debug_dump(ppgtt, m); } diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 98b4698..0fe5c1e 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -307,7 +307,7 @@ static int gen8_mm_switch(struct i915_hw_ppgtt *ppgtt, int used_pd = ppgtt->num_pd_entries / GEN8_PDES_PER_PAGE; for (i = used_pd - 1; i >= 0; i--) { - dma_addr_t addr = ppgtt->pd_dma_addr[i]; + dma_addr_t addr = ppgtt->pdp.page_directory[i].daddr; ret = gen8_write_pdp(ring, i, addr); if (ret) return ret; @@ -433,7 +433,6 @@ static void gen8_ppgtt_free(struct i915_hw_ppgtt *ppgtt) for (i = 0; i < ppgtt->num_pd_pages; i++) { gen8_free_page_tables(&ppgtt->pdp.page_directory[i]); gen8_free_page_directories(&ppgtt->pdp.page_directory[i]); - kfree(ppgtt->gen8_pt_dma_addr[i]); } } @@ -445,14 +444,14 @@ static void gen8_ppgtt_unmap_pages(struct i915_hw_ppgtt *ppgtt) for (i = 0; i < ppgtt->num_pd_pages; i++) { /* TODO: In the future we'll support sparse mappings, so this * will have to change. */ - if (!ppgtt->pd_dma_addr[i]) + if (!ppgtt->pdp.page_directory[i].daddr) continue; - pci_unmap_page(hwdev, ppgtt->pd_dma_addr[i], PAGE_SIZE, + pci_unmap_page(hwdev, ppgtt->pdp.page_directory[i].daddr, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); for (j = 0; j < GEN8_PDES_PER_PAGE; j++) { - dma_addr_t addr = ppgtt->gen8_pt_dma_addr[i][j]; + dma_addr_t addr = ppgtt->pdp.page_directory[i].page_tables[j].daddr; if (addr) pci_unmap_page(hwdev, addr, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); @@ -469,32 +468,19 @@ static void gen8_ppgtt_cleanup(struct i915_address_space *vm) gen8_ppgtt_free(ppgtt); } -static int gen8_ppgtt_allocate_dma(struct i915_hw_ppgtt *ppgtt) -{ - int i; - - for (i = 0; i < ppgtt->num_pd_pages; i++) { - ppgtt->gen8_pt_dma_addr[i] = kcalloc(GEN8_PDES_PER_PAGE, - sizeof(dma_addr_t), - GFP_KERNEL); - if (!ppgtt->gen8_pt_dma_addr[i]) - return -ENOMEM; - } - - return 0; -} - static int gen8_ppgtt_allocate_page_tables(struct i915_hw_ppgtt *ppgtt) { int i, j; for (i = 0; i < ppgtt->num_pd_pages; i++) { + struct i915_page_directory_entry *pd = &ppgtt->pdp.page_directory[i]; for (j = 0; j < GEN8_PDES_PER_PAGE; j++) { - struct i915_page_table_entry *pt = &ppgtt->pdp.page_directory[i].page_tables[j]; + struct i915_page_table_entry *pt = &pd->page_tables[j]; pt->page = alloc_page(GFP_KERNEL | __GFP_ZERO); if (!pt->page) goto unwind_out; + } } @@ -555,9 +541,7 @@ static int gen8_ppgtt_alloc(struct i915_hw_ppgtt *ppgtt, ppgtt->num_pd_entries = max_pdp * GEN8_PDES_PER_PAGE; - ret = gen8_ppgtt_allocate_dma(ppgtt); - if (!ret) - return ret; + return 0; /* TODO: Check this for all cases */ err_out: @@ -579,7 +563,7 @@ static int gen8_ppgtt_setup_page_directories(struct i915_hw_ppgtt *ppgtt, if (ret) return ret; - ppgtt->pd_dma_addr[pd] = pd_addr; + ppgtt->pdp.page_directory[pd].daddr = pd_addr; return 0; } @@ -589,17 +573,18 @@ static int gen8_ppgtt_setup_page_tables(struct i915_hw_ppgtt *ppgtt, const int pt) { dma_addr_t pt_addr; - struct page *p; + struct i915_page_directory_entry *pdir = &ppgtt->pdp.page_directory[pd]; + struct i915_page_table_entry *ptab = &pdir->page_tables[pt]; + struct page *p = ptab->page; int ret; - p = ppgtt->pdp.page_directory[pd].page_tables[pt].page; pt_addr = pci_map_page(ppgtt->base.dev->pdev, p, 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); ret = pci_dma_mapping_error(ppgtt->base.dev->pdev, pt_addr); if (ret) return ret; - ppgtt->gen8_pt_dma_addr[pd][pt] = pt_addr; + ptab->daddr = pt_addr; return 0; } @@ -655,7 +640,7 @@ static int gen8_ppgtt_init(struct i915_hw_ppgtt *ppgtt, uint64_t size) gen8_ppgtt_pde_t *pd_vaddr; pd_vaddr = kmap_atomic(ppgtt->pdp.page_directory[i].page); for (j = 0; j < GEN8_PDES_PER_PAGE; j++) { - dma_addr_t addr = ppgtt->gen8_pt_dma_addr[i][j]; + dma_addr_t addr = ppgtt->pdp.page_directory[i].page_tables[j].daddr; pd_vaddr[j] = gen8_pde_encode(ppgtt->base.dev, addr, I915_CACHE_LLC); } @@ -698,14 +683,15 @@ static void gen6_dump_ppgtt(struct i915_hw_ppgtt *ppgtt, struct seq_file *m) scratch_pte = vm->pte_encode(vm->scratch.addr, I915_CACHE_LLC, true, 0); pd_addr = (gen6_gtt_pte_t __iomem *)dev_priv->gtt.gsm + - ppgtt->pd_offset / sizeof(gen6_gtt_pte_t); + ppgtt->pd.pd_offset / sizeof(gen6_gtt_pte_t); seq_printf(m, " VM %p (pd_offset %x-%x):\n", vm, - ppgtt->pd_offset, ppgtt->pd_offset + ppgtt->num_pd_entries); + ppgtt->pd.pd_offset, + ppgtt->pd.pd_offset + ppgtt->num_pd_entries); for (pde = 0; pde < ppgtt->num_pd_entries; pde++) { u32 expected; gen6_gtt_pte_t *pt_vaddr; - dma_addr_t pt_addr = ppgtt->pt_dma_addr[pde]; + dma_addr_t pt_addr = ppgtt->pd.page_tables[pde].daddr; pd_entry = readl(pd_addr + pde); expected = (GEN6_PDE_ADDR_ENCODE(pt_addr) | GEN6_PDE_VALID); @@ -749,13 +735,13 @@ static void gen6_write_pdes(struct i915_hw_ppgtt *ppgtt) uint32_t pd_entry; int i; - WARN_ON(ppgtt->pd_offset & 0x3f); + WARN_ON(ppgtt->pd.pd_offset & 0x3f); pd_addr = (gen6_gtt_pte_t __iomem*)dev_priv->gtt.gsm + - ppgtt->pd_offset / sizeof(gen6_gtt_pte_t); + ppgtt->pd.pd_offset / sizeof(gen6_gtt_pte_t); for (i = 0; i < ppgtt->num_pd_entries; i++) { dma_addr_t pt_addr; - pt_addr = ppgtt->pt_dma_addr[i]; + pt_addr = ppgtt->pd.page_tables[i].daddr; pd_entry = GEN6_PDE_ADDR_ENCODE(pt_addr); pd_entry |= GEN6_PDE_VALID; @@ -766,9 +752,9 @@ static void gen6_write_pdes(struct i915_hw_ppgtt *ppgtt) static uint32_t get_pd_offset(struct i915_hw_ppgtt *ppgtt) { - BUG_ON(ppgtt->pd_offset & 0x3f); + BUG_ON(ppgtt->pd.pd_offset & 0x3f); - return (ppgtt->pd_offset / 64) << 16; + return (ppgtt->pd.pd_offset / 64) << 16; } static int hsw_mm_switch(struct i915_hw_ppgtt *ppgtt, @@ -971,19 +957,16 @@ static void gen6_ppgtt_unmap_pages(struct i915_hw_ppgtt *ppgtt) { int i; - if (ppgtt->pt_dma_addr) { - for (i = 0; i < ppgtt->num_pd_entries; i++) - pci_unmap_page(ppgtt->base.dev->pdev, - ppgtt->pt_dma_addr[i], - 4096, PCI_DMA_BIDIRECTIONAL); - } + for (i = 0; i < ppgtt->num_pd_entries; i++) + pci_unmap_page(ppgtt->base.dev->pdev, + ppgtt->pd.page_tables[i].daddr, + 4096, PCI_DMA_BIDIRECTIONAL); } static void gen6_ppgtt_free(struct i915_hw_ppgtt *ppgtt) { int i; - kfree(ppgtt->pt_dma_addr); for (i = 0; i < ppgtt->num_pd_entries; i++) __free_page(ppgtt->pd.page_tables[i].page); kfree(ppgtt->pd.page_tables); @@ -1076,14 +1059,6 @@ static int gen6_ppgtt_alloc(struct i915_hw_ppgtt *ppgtt) return ret; } - ppgtt->pt_dma_addr = kcalloc(ppgtt->num_pd_entries, sizeof(dma_addr_t), - GFP_KERNEL); - if (!ppgtt->pt_dma_addr) { - drm_mm_remove_node(&ppgtt->node); - gen6_ppgtt_free(ppgtt); - return -ENOMEM; - } - return 0; } @@ -1105,7 +1080,7 @@ static int gen6_ppgtt_setup_page_tables(struct i915_hw_ppgtt *ppgtt) return -EIO; } - ppgtt->pt_dma_addr[i] = pt_addr; + ppgtt->pd.page_tables[i].daddr = pt_addr; } return 0; @@ -1144,7 +1119,7 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt) ppgtt->base.total = ppgtt->num_pd_entries * I915_PPGTT_PT_ENTRIES * PAGE_SIZE; ppgtt->debug_dump = gen6_dump_ppgtt; - ppgtt->pd_offset = + ppgtt->pd.pd_offset = ppgtt->node.start / PAGE_SIZE * sizeof(gen6_gtt_pte_t); ppgtt->base.clear_range(&ppgtt->base, 0, ppgtt->base.total, true); @@ -1155,7 +1130,7 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt) gen6_write_pdes(ppgtt); DRM_DEBUG("Adding PPGTT at offset %x\n", - ppgtt->pd_offset << 10); + ppgtt->pd.pd_offset << 10); return 0; } diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h index d9bc375..6efeb18 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.h +++ b/drivers/gpu/drm/i915/i915_gem_gtt.h @@ -189,10 +189,16 @@ struct i915_vma { struct i915_page_table_entry { struct page *page; + dma_addr_t daddr; }; struct i915_page_directory_entry { struct page *page; /* NULL for GEN6-GEN7 */ + union { + uint32_t pd_offset; + dma_addr_t daddr; + }; + struct i915_page_table_entry *page_tables; }; @@ -286,14 +292,6 @@ struct i915_hw_ppgtt { unsigned num_pd_entries; unsigned num_pd_pages; /* gen8+ */ union { - uint32_t pd_offset; - dma_addr_t pd_dma_addr[GEN8_LEGACY_PDPES]; - }; - union { - dma_addr_t *pt_dma_addr; - dma_addr_t *gen8_pt_dma_addr[GEN8_LEGACY_PDPES]; - }; - union { struct i915_page_directory_pointer_entry pdp; struct i915_page_directory_entry pd; }; diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index a68f180..a784d1d 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1731,14 +1731,14 @@ populate_lr_context(struct intel_context *ctx, struct drm_i915_gem_object *ctx_o reg_state[CTX_PDP1_LDW] = GEN8_RING_PDP_LDW(ring, 1); reg_state[CTX_PDP0_UDW] = GEN8_RING_PDP_UDW(ring, 0); reg_state[CTX_PDP0_LDW] = GEN8_RING_PDP_LDW(ring, 0); - reg_state[CTX_PDP3_UDW+1] = upper_32_bits(ppgtt->pd_dma_addr[3]); - reg_state[CTX_PDP3_LDW+1] = lower_32_bits(ppgtt->pd_dma_addr[3]); - reg_state[CTX_PDP2_UDW+1] = upper_32_bits(ppgtt->pd_dma_addr[2]); - reg_state[CTX_PDP2_LDW+1] = lower_32_bits(ppgtt->pd_dma_addr[2]); - reg_state[CTX_PDP1_UDW+1] = upper_32_bits(ppgtt->pd_dma_addr[1]); - reg_state[CTX_PDP1_LDW+1] = lower_32_bits(ppgtt->pd_dma_addr[1]); - reg_state[CTX_PDP0_UDW+1] = upper_32_bits(ppgtt->pd_dma_addr[0]); - reg_state[CTX_PDP0_LDW+1] = lower_32_bits(ppgtt->pd_dma_addr[0]); + reg_state[CTX_PDP3_UDW+1] = upper_32_bits(ppgtt->pdp.page_directory[3].daddr); + reg_state[CTX_PDP3_LDW+1] = lower_32_bits(ppgtt->pdp.page_directory[3].daddr); + reg_state[CTX_PDP2_UDW+1] = upper_32_bits(ppgtt->pdp.page_directory[2].daddr); + reg_state[CTX_PDP2_LDW+1] = lower_32_bits(ppgtt->pdp.page_directory[2].daddr); + reg_state[CTX_PDP1_UDW+1] = upper_32_bits(ppgtt->pdp.page_directory[1].daddr); + reg_state[CTX_PDP1_LDW+1] = lower_32_bits(ppgtt->pdp.page_directory[1].daddr); + reg_state[CTX_PDP0_UDW+1] = upper_32_bits(ppgtt->pdp.page_directory[0].daddr); + reg_state[CTX_PDP0_LDW+1] = lower_32_bits(ppgtt->pdp.page_directory[0].daddr); if (ring->id == RCS) { reg_state[CTX_LRI_HEADER_2] = MI_LOAD_REGISTER_IMM(1); reg_state[CTX_R_PWR_CLK_STATE] = 0x20c8;