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Y. Srinivasan" , Laxman Dewangan , Len Brown , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-mips@vger.kernel.org, linux-riscv@lists.infradead.org, linux-snps-arc@lists.infradead.org, linux-tegra@vger.kernel.org, Russell King , Lyude Paul , Marek Szyprowski , nouveau@lists.freedesktop.org, Palmer Dabbelt , Paul Walmsley , "Rafael J. Wysocki" , Rob Herring , Robin Murphy , Suravee Suthikulpanit , Sven Peter , Thomas Bogendoerfer , Vineet Gupta , Vinod Koul , Wei Liu , Will Deacon Cc: Lu Baolu , Christoph Hellwig , Jerry Snitselaar , Hector Martin , Moritz Fischer , Moritz Fischer , patches@lists.linux.dev, "Rafael J. Wysocki" , Rob Herring , Thierry Reding , Thierry Reding Subject: [PATCH v2 7/7] iommu/tegra: Use tegra_dev_iommu_get_stream_id() in the remaining places Date: Thu, 7 Dec 2023 14:03:14 -0400 Message-ID: <7-v2-16e4def25ebb+820-iommu_fwspec_p1_jgg@nvidia.com> In-Reply-To: <0-v2-16e4def25ebb+820-iommu_fwspec_p1_jgg@nvidia.com> References: X-ClientProxiedBy: BL6PEPF00013E0D.NAMP222.PROD.OUTLOOK.COM (2603:10b6:22e:400:0:1001:0:11) To LV2PR12MB5869.namprd12.prod.outlook.com (2603:10b6:408:176::16) Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV2PR12MB5869:EE_|CH3PR12MB7667:EE_ X-MS-Office365-Filtering-Correlation-Id: d4e13b29-904d-42f6-d3e4-08dbf74ec8b9 X-LD-Processed: 43083d15-7273-40c1-b7db-39efd9ccc17a,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:LV2PR12MB5869.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(39860400002)(366004)(376002)(346002)(136003)(396003)(230922051799003)(186009)(1800799012)(451199024)(64100799003)(7366002)(7416002)(2906002)(7406005)(5660300002)(41300700001)(86362001)(8676002)(4326008)(8936002)(36756003)(316002)(66946007)(66556008)(66476007)(54906003)(110136005)(921008)(38100700002)(6486002)(478600001)(107886003)(66574015)(83380400001)(6506007)(26005)(6512007)(2616005)(4216001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: d4e13b29-904d-42f6-d3e4-08dbf74ec8b9 X-MS-Exchange-CrossTenant-AuthSource: LV2PR12MB5869.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Dec 2023 18:03:15.1951 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: YpYMkmZkyeEXimkQSeaIavwaVjwVEFkWI8BApk4OYFTmL4lf2Igjlo69pO0fmWrK X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB7667 This API was defined to formalize the access to internal iommu details on some Tegra SOCs, but a few callers got missed. Add them. The helper already masks by 0xFFFF so remove this code from the callers. Suggested-by: Thierry Reding Reviewed-by: Thierry Reding Signed-off-by: Jason Gunthorpe --- drivers/dma/tegra186-gpc-dma.c | 8 +++----- drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp10b.c | 9 ++------- drivers/memory/tegra/tegra186.c | 14 ++++++++------ 3 files changed, 13 insertions(+), 18 deletions(-) diff --git a/drivers/dma/tegra186-gpc-dma.c b/drivers/dma/tegra186-gpc-dma.c index fa4d4142a68a21..88547a23825b18 100644 --- a/drivers/dma/tegra186-gpc-dma.c +++ b/drivers/dma/tegra186-gpc-dma.c @@ -1348,8 +1348,8 @@ static int tegra_dma_program_sid(struct tegra_dma_channel *tdc, int stream_id) static int tegra_dma_probe(struct platform_device *pdev) { const struct tegra_dma_chip_data *cdata = NULL; - struct iommu_fwspec *iommu_spec; - unsigned int stream_id, i; + unsigned int i; + u32 stream_id; struct tegra_dma *tdma; int ret; @@ -1378,12 +1378,10 @@ static int tegra_dma_probe(struct platform_device *pdev) tdma->dma_dev.dev = &pdev->dev; - iommu_spec = dev_iommu_fwspec_get(&pdev->dev); - if (!iommu_spec) { + if (!tegra_dev_iommu_get_stream_id(&pdev->dev, &stream_id)) { dev_err(&pdev->dev, "Missing iommu stream-id\n"); return -EINVAL; } - stream_id = iommu_spec->ids[0] & 0xffff; ret = device_property_read_u32(&pdev->dev, "dma-channel-mask", &tdma->chan_mask); diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp10b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp10b.c index e7e8fdf3adab7a..29682722b0b36b 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp10b.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp10b.c @@ -28,19 +28,14 @@ static void gp10b_ltc_init(struct nvkm_ltc *ltc) { struct nvkm_device *device = ltc->subdev.device; - struct iommu_fwspec *spec; + u32 sid; nvkm_wr32(device, 0x17e27c, ltc->ltc_nr); nvkm_wr32(device, 0x17e000, ltc->ltc_nr); nvkm_wr32(device, 0x100800, ltc->ltc_nr); - spec = dev_iommu_fwspec_get(device->dev); - if (spec) { - u32 sid = spec->ids[0] & 0xffff; - - /* stream ID */ + if (tegra_dev_iommu_get_stream_id(device->dev, &sid)) nvkm_wr32(device, 0x160000, sid << 2); - } } static const struct nvkm_ltc_func diff --git a/drivers/memory/tegra/tegra186.c b/drivers/memory/tegra/tegra186.c index 533f85a4b2bdb7..9cbf22a10a8270 100644 --- a/drivers/memory/tegra/tegra186.c +++ b/drivers/memory/tegra/tegra186.c @@ -111,9 +111,12 @@ static void tegra186_mc_client_sid_override(struct tegra_mc *mc, static int tegra186_mc_probe_device(struct tegra_mc *mc, struct device *dev) { #if IS_ENABLED(CONFIG_IOMMU_API) - struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); struct of_phandle_args args; unsigned int i, index = 0; + u32 sid; + + if (!tegra_dev_iommu_get_stream_id(dev, &sid)) + return 0; while (!of_parse_phandle_with_args(dev->of_node, "interconnects", "#interconnect-cells", index, &args)) { @@ -121,11 +124,10 @@ static int tegra186_mc_probe_device(struct tegra_mc *mc, struct device *dev) for (i = 0; i < mc->soc->num_clients; i++) { const struct tegra_mc_client *client = &mc->soc->clients[i]; - if (client->id == args.args[0]) { - u32 sid = fwspec->ids[0] & MC_SID_STREAMID_OVERRIDE_MASK; - - tegra186_mc_client_sid_override(mc, client, sid); - } + if (client->id == args.args[0]) + tegra186_mc_client_sid_override( + mc, client, + sid & MC_SID_STREAMID_OVERRIDE_MASK); } }