From patchwork Fri Jun 5 06:35:16 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexey Kardashevskiy X-Patchwork-Id: 481081 X-Patchwork-Delegate: michael@ellerman.id.au Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 29A45140218 for ; Fri, 5 Jun 2015 17:19:39 +1000 (AEST) Received: from ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 0FE411A2C2D for ; Fri, 5 Jun 2015 17:19:39 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from e23smtp08.au.ibm.com (e23smtp08.au.ibm.com [202.81.31.141]) (using TLSv1 with cipher CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 9A0B61A1D81 for ; Fri, 5 Jun 2015 16:38:15 +1000 (AEST) Received: from /spool/local by e23smtp08.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 5 Jun 2015 16:38:15 +1000 Received: from d23dlp02.au.ibm.com (202.81.31.213) by e23smtp08.au.ibm.com (202.81.31.205) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Fri, 5 Jun 2015 16:38:13 +1000 Received: from d23relay10.au.ibm.com (d23relay10.au.ibm.com [9.190.26.77]) by d23dlp02.au.ibm.com (Postfix) with ESMTP id 03D422BB0057 for ; Fri, 5 Jun 2015 16:38:13 +1000 (EST) Received: from d23av03.au.ibm.com (d23av03.au.ibm.com [9.190.234.97]) by d23relay10.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id t556ao9s20250740 for ; Fri, 5 Jun 2015 16:36:58 +1000 Received: from d23av03.au.ibm.com (localhost [127.0.0.1]) by d23av03.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id t556aPBO015314 for ; Fri, 5 Jun 2015 16:36:25 +1000 Received: from ozlabs.au.ibm.com (ozlabs.au.ibm.com [9.192.253.14]) by d23av03.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id t556aPKf014627; Fri, 5 Jun 2015 16:36:25 +1000 Received: from bran.ozlabs.ibm.com (unknown [9.192.254.114]) by ozlabs.au.ibm.com (Postfix) with ESMTP id E6FC6A03FB; Fri, 5 Jun 2015 16:35:39 +1000 (AEST) Received: from ka1.ozlabs.ibm.com (ka1.ozlabs.ibm.com [10.61.145.11]) by bran.ozlabs.ibm.com (Postfix) with ESMTP id 4EB05E3897; Fri, 5 Jun 2015 16:35:37 +1000 (AEST) From: Alexey Kardashevskiy To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH kernel v12 24/34] powerpc/powernv/ioda2: Rework iommu_table creation Date: Fri, 5 Jun 2015 16:35:16 +1000 Message-Id: <1433486126-23551-25-git-send-email-aik@ozlabs.ru> X-Mailer: git-send-email 2.4.0.rc3.8.gfb3e7d5 In-Reply-To: <1433486126-23551-1-git-send-email-aik@ozlabs.ru> References: <1433486126-23551-1-git-send-email-aik@ozlabs.ru> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15060506-0029-0000-0000-000001A9A674 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Wei Yang , Alexey Kardashevskiy , Gavin Shan , linux-kernel@vger.kernel.org, Alex Williamson , Paul Mackerras , David Gibson MIME-Version: 1.0 Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" This moves iommu_table creation to the beginning to make following changes easier to review. This starts using table parameters from the iommu_table struct. This should cause no behavioural change. Signed-off-by: Alexey Kardashevskiy Reviewed-by: David Gibson Reviewed-by: Gavin Shan --- Changes: v9: * updated commit log and did minor cleanup --- arch/powerpc/platforms/powernv/pci-ioda.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 19d89dc..95d3121 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -2070,13 +2070,23 @@ static void pnv_pci_ioda2_setup_dma_pe(struct pnv_phb *phb, addr = page_address(tce_mem); memset(addr, 0, tce_table_size); + /* Setup linux iommu table */ + pnv_pci_setup_iommu_table(tbl, addr, tce_table_size, 0, + IOMMU_PAGE_SHIFT_4K); + + tbl->it_ops = &pnv_ioda2_iommu_ops; + iommu_init_table(tbl, phb->hose->node); +#ifdef CONFIG_IOMMU_API + pe->table_group.ops = &pnv_pci_ioda2_ops; +#endif + /* * Map TCE table through TVT. The TVE index is the PE number * shifted by 1 bit for 32-bits DMA space. */ rc = opal_pci_map_pe_dma_window(phb->opal_id, pe->pe_number, - pe->pe_number << 1, 1, __pa(addr), - tce_table_size, 0x1000); + pe->pe_number << 1, 1, __pa(tbl->it_base), + tbl->it_size << 3, 1ULL << tbl->it_page_shift); if (rc) { pe_err(pe, "Failed to configure 32-bit TCE table," " err %ld\n", rc); @@ -2085,20 +2095,10 @@ static void pnv_pci_ioda2_setup_dma_pe(struct pnv_phb *phb, pnv_pci_ioda2_tce_invalidate_entire(pe); - /* Setup linux iommu table */ - pnv_pci_setup_iommu_table(tbl, addr, tce_table_size, 0, - IOMMU_PAGE_SHIFT_4K); - /* OPAL variant of PHB3 invalidated TCEs */ if (phb->ioda.tce_inval_reg) tbl->it_type |= (TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE); - tbl->it_ops = &pnv_ioda2_iommu_ops; - iommu_init_table(tbl, phb->hose->node); -#ifdef CONFIG_IOMMU_API - pe->table_group.ops = &pnv_pci_ioda2_ops; -#endif - if (pe->flags & PNV_IODA_PE_DEV) { /* * Setting table base here only for carrying iommu_group