From patchwork Tue Oct 10 13:37:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sarah Walker X-Patchwork-Id: 13415600 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 EC0E0CD80D4 for ; Tue, 10 Oct 2023 13:39:10 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8348010E380; Tue, 10 Oct 2023 13:39:06 +0000 (UTC) Received: from mx07-00376f01.pphosted.com (mx07-00376f01.pphosted.com [185.132.180.163]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7E68010E37C for ; Tue, 10 Oct 2023 13:38:57 +0000 (UTC) Received: from pps.filterd (m0168889.ppops.net [127.0.0.1]) by mx07-00376f01.pphosted.com (8.17.1.22/8.17.1.22) with ESMTP id 39ACU2We020208; Tue, 10 Oct 2023 14:38:20 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=imgtec.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :content-transfer-encoding:content-type:mime-version; s= dk201812; bh=czD/hn0IBjloOYNpYudpXrWFnvwVUd7dFoHqunVuoyU=; b=Lrv S1CauxtbC9dQlqnwPqlsYUVRirbdG6iM91ukM7pgKxzlPM31zImbHBLqmf4sMNZo cHWNuBv1LAH+0ggYobDIz8Ryr0hHe80/dd8HTj8/v7ehFyAoOSceR5A2rpsYUwkn moCiKC0RVOEh+0qFYef3cIi3bHUsgvCFYOx+aTywpFGvCf9uh5WmBmsi9XVanlVS kd7aJEPGnmynNPsTMyIhl0Bl2wTQG5qwEiQ0EFs5mNNOodsO9M0stXvzu0kUiEGV eDeozU2ZaawLkWCzgyno2x/105rb9F9rpIR13kdR8awZjmH1jA+IVb3ps5kbiFD5 3tlwEWCQcgJw+tUfGqw== Received: from hhmail05.hh.imgtec.org ([217.156.249.195]) by mx07-00376f01.pphosted.com (PPS) with ESMTPS id 3tjydrt72j-3 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Tue, 10 Oct 2023 14:38:19 +0100 (BST) Received: from HHMAIL05.hh.imgtec.org (10.100.10.120) by HHMAIL05.hh.imgtec.org (10.100.10.120) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Tue, 10 Oct 2023 14:38:17 +0100 Received: from GBR01-LO4-obe.outbound.protection.outlook.com (104.47.85.105) by email.imgtec.com (10.100.10.121) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31 via Frontend Transport; Tue, 10 Oct 2023 14:38:17 +0100 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=TbxRK7TF3FLrXcu18pRkma8+ZDyzg1h5VfzzF0JbwXNYmB8RWofd1I9IOz0JLd30NgLn0ShscGVIDzRLzqFMekL5FSarp8bExxSlV8Kgzal5zpY8PmXFicK/7p+Lcgik59u8A4U0q+0T69l12lcxR9PdWgkE/tSw1zD+iD7nDNxWG+lb9NTCAMuzhvaX/fxg7J5AUCHKMLKKvbBtIm08oOHlGPSA7P5BWmtHVJkv6yC/Fkq0zxNV0imPdTsF6LqTUlC/xSjd4ubgCoMTMdQPEAQCekBZX1R3tlswbw86CJWzmzbm+6OqPUa29hfQRe1a7uO3KnbdBAAPmQyiEj40RA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=czD/hn0IBjloOYNpYudpXrWFnvwVUd7dFoHqunVuoyU=; b=CvgmrcC7F00Gha5nHK+WExPjRsfid8WAdDIKjLjdA67DHvI/WavY0fdPt+2p5KhUaf03MudFdcG6JCdI2WqD9VQyvuHUbTsPltB+4wBOuwo3WFwJ4sGLNQv+dLngG5U57qpTARRuZgZ0A0QnjszfIjAn6Hh6hEE7CGU88aOBR+wCfJOMbmTttxUaGFv+PMbIwJvgcojVB2Jhn5ABsHxXfDV948HOgEYxQTisn7fdtF21PVIhTLyhIVPougo/+4ObGIQBF8iq+q0xYe7sRUaki2W70TCROSNlST8KVkTMlvOTJOJZyG1Is3GXhm5n3h43vhqUhtGi77EzR864x7D7xQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=imgtec.com; dmarc=pass action=none header.from=imgtec.com; dkim=pass header.d=imgtec.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=IMGTecCRM.onmicrosoft.com; s=selector2-IMGTecCRM-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=czD/hn0IBjloOYNpYudpXrWFnvwVUd7dFoHqunVuoyU=; b=Sz3HrgisyamqgBzOtDIJuSdTEs/eJTOhO9JHVUW+7/G7luNpIYfkihi7QBlxX4U+2foTiypzwEc3BQ0RXTSWUhlasnINOtdeYz/Yk5yoOgcMhKuGdpcixYiEFM0FF/iriqDPt8SCqmNjTM6hSLwlbWbS4Sousizx03bdIX3LHI8= Received: from CWLP265MB4817.GBRP265.PROD.OUTLOOK.COM (2603:10a6:400:170::9) by LO0P265MB6147.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:248::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6863.38; Tue, 10 Oct 2023 13:38:14 +0000 Received: from CWLP265MB4817.GBRP265.PROD.OUTLOOK.COM ([fe80::1f14:8c15:179d:7afc]) by CWLP265MB4817.GBRP265.PROD.OUTLOOK.COM ([fe80::1f14:8c15:179d:7afc%4]) with mapi id 15.20.6863.032; Tue, 10 Oct 2023 13:38:14 +0000 From: Sarah Walker To: Subject: [PATCH v7 14/20] drm/imagination: Implement MIPS firmware processor and MMU support Date: Tue, 10 Oct 2023 14:37:32 +0100 Message-Id: <20231010133738.35274-15-sarah.walker@imgtec.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231010133738.35274-1-sarah.walker@imgtec.com> References: <20231010133738.35274-1-sarah.walker@imgtec.com> X-ClientProxiedBy: LO4P123CA0183.GBRP123.PROD.OUTLOOK.COM (2603:10a6:600:1a4::8) To CWLP265MB4817.GBRP265.PROD.OUTLOOK.COM (2603:10a6:400:170::9) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CWLP265MB4817:EE_|LO0P265MB6147:EE_ X-MS-Office365-Filtering-Correlation-Id: 7eeb703d-e8b0-495b-2682-08dbc9962772 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:CWLP265MB4817.GBRP265.PROD.OUTLOOK.COM; PTR:; CAT:NONE; SFS:(13230031)(376002)(136003)(366004)(346002)(396003)(39850400004)(230922051799003)(64100799003)(451199024)(186009)(1800799009)(6512007)(478600001)(52116002)(6486002)(6666004)(6506007)(1076003)(83380400001)(26005)(2616005)(2906002)(30864003)(66556008)(316002)(66476007)(5660300002)(8936002)(44832011)(41300700001)(8676002)(4326008)(66946007)(6916009)(38100700002)(38350700002)(36756003)(86362001)(7416002); DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-MS-Exchange-CrossTenant-Network-Message-Id: 7eeb703d-e8b0-495b-2682-08dbc9962772 X-MS-Exchange-CrossTenant-AuthSource: CWLP265MB4817.GBRP265.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Oct 2023 13:38:14.8578 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 0d5fd8bb-e8c2-4e0a-8dd5-2c264f7140fe X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: jOIojf2mEIE45QxR1UTo0vODR5Cdn7VhrtSzv96GVNu8jvF9SkLHtjch9ej8aTHNv7xqFh5jODlXIrTmhi6prA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: LO0P265MB6147 X-OriginatorOrg: imgtec.com X-EXCLAIMER-MD-CONFIG: 15a78312-3e47-46eb-9010-2e54d84a9631 X-Proofpoint-GUID: HmWApf6x6uYuMmDFo095FSYMYW558ngL X-Proofpoint-ORIG-GUID: HmWApf6x6uYuMmDFo095FSYMYW558ngL 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: linux-doc@vger.kernel.org, hns@goldelico.com, krzysztof.kozlowski+dt@linaro.org, matthew.brost@intel.com, corbet@lwn.net, luben.tuikov@amd.com, dakr@redhat.com, donald.robson@imgtec.com, devicetree@vger.kernel.org, conor+dt@kernel.org, mripard@kernel.org, robh+dt@kernel.org, faith.ekstrand@collabora.com, linux-kernel@vger.kernel.org, afd@ti.com, boris.brezillon@collabora.com, tzimmermann@suse.de, christian.koenig@amd.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add support for the MIPS firmware processor, used in the Series AXE GPU. The MIPS firmware processor uses a separate MMU to the rest of the GPU, so this patch adds support for that as well. Changes since v6: - Fix integer overflow in VM map error path Changes since v5: - Use alloc_page() when allocating MIPS pagetable Changes since v3: - Get regs resource (removed from GPU resources commit) Signed-off-by: Sarah Walker --- drivers/gpu/drm/imagination/Makefile | 4 +- drivers/gpu/drm/imagination/pvr_device.c | 5 +- drivers/gpu/drm/imagination/pvr_device.h | 3 + drivers/gpu/drm/imagination/pvr_fw.c | 2 + drivers/gpu/drm/imagination/pvr_fw_mips.c | 252 ++++++++++++++++++++++ drivers/gpu/drm/imagination/pvr_fw_mips.h | 48 +++++ drivers/gpu/drm/imagination/pvr_vm_mips.c | 236 ++++++++++++++++++++ drivers/gpu/drm/imagination/pvr_vm_mips.h | 22 ++ 8 files changed, 570 insertions(+), 2 deletions(-) create mode 100644 drivers/gpu/drm/imagination/pvr_fw_mips.c create mode 100644 drivers/gpu/drm/imagination/pvr_fw_mips.h create mode 100644 drivers/gpu/drm/imagination/pvr_vm_mips.c create mode 100644 drivers/gpu/drm/imagination/pvr_vm_mips.h diff --git a/drivers/gpu/drm/imagination/Makefile b/drivers/gpu/drm/imagination/Makefile index 5b02440841be..0a6532d30c00 100644 --- a/drivers/gpu/drm/imagination/Makefile +++ b/drivers/gpu/drm/imagination/Makefile @@ -10,11 +10,13 @@ powervr-y := \ pvr_drv.o \ pvr_fw.o \ pvr_fw_meta.o \ + pvr_fw_mips.o \ pvr_fw_startstop.o \ pvr_fw_trace.o \ pvr_gem.o \ pvr_mmu.o \ pvr_power.o \ - pvr_vm.o + pvr_vm.o \ + pvr_vm_mips.o obj-$(CONFIG_DRM_POWERVR) += powervr.o diff --git a/drivers/gpu/drm/imagination/pvr_device.c b/drivers/gpu/drm/imagination/pvr_device.c index 6055cf6054f7..aac5e62d6cbe 100644 --- a/drivers/gpu/drm/imagination/pvr_device.c +++ b/drivers/gpu/drm/imagination/pvr_device.c @@ -50,16 +50,19 @@ pvr_device_reg_init(struct pvr_device *pvr_dev) { struct drm_device *drm_dev = from_pvr_device(pvr_dev); struct platform_device *plat_dev = to_platform_device(drm_dev->dev); + struct resource *regs_resource; void __iomem *regs; + pvr_dev->regs_resource = NULL; pvr_dev->regs = NULL; - regs = devm_platform_ioremap_resource(plat_dev, 0); + regs = devm_platform_get_and_ioremap_resource(plat_dev, 0, ®s_resource); if (IS_ERR(regs)) return dev_err_probe(drm_dev->dev, PTR_ERR(regs), "failed to ioremap gpu registers\n"); pvr_dev->regs = regs; + pvr_dev->regs_resource = regs_resource; return 0; } diff --git a/drivers/gpu/drm/imagination/pvr_device.h b/drivers/gpu/drm/imagination/pvr_device.h index b5de9574a116..cbcfc5d4b845 100644 --- a/drivers/gpu/drm/imagination/pvr_device.h +++ b/drivers/gpu/drm/imagination/pvr_device.h @@ -93,6 +93,9 @@ struct pvr_device { /** @fw_version: Firmware version detected at runtime. */ struct pvr_fw_version fw_version; + /** @regs_resource: Resource representing device control registers. */ + struct resource *regs_resource; + /** * @regs: Device control registers. * diff --git a/drivers/gpu/drm/imagination/pvr_fw.c b/drivers/gpu/drm/imagination/pvr_fw.c index 4ea663be4596..d3edcb74f29d 100644 --- a/drivers/gpu/drm/imagination/pvr_fw.c +++ b/drivers/gpu/drm/imagination/pvr_fw.c @@ -933,6 +933,8 @@ pvr_fw_init(struct pvr_device *pvr_dev) if (fw_dev->processor_type == PVR_FW_PROCESSOR_TYPE_META) fw_dev->defs = &pvr_fw_defs_meta; + else if (fw_dev->processor_type == PVR_FW_PROCESSOR_TYPE_MIPS) + fw_dev->defs = &pvr_fw_defs_mips; else return -EINVAL; diff --git a/drivers/gpu/drm/imagination/pvr_fw_mips.c b/drivers/gpu/drm/imagination/pvr_fw_mips.c new file mode 100644 index 000000000000..bf13b05d1248 --- /dev/null +++ b/drivers/gpu/drm/imagination/pvr_fw_mips.c @@ -0,0 +1,252 @@ +// SPDX-License-Identifier: GPL-2.0 OR MIT +/* Copyright (c) 2023 Imagination Technologies Ltd. */ + +#include "pvr_device.h" +#include "pvr_fw.h" +#include "pvr_fw_mips.h" +#include "pvr_gem.h" +#include "pvr_rogue_mips.h" +#include "pvr_vm_mips.h" + +#include +#include +#include + +#define ROGUE_FW_HEAP_MIPS_BASE 0xC0000000 +#define ROGUE_FW_HEAP_MIPS_SHIFT 24 /* 16 MB */ +#define ROGUE_FW_HEAP_MIPS_RESERVED_SIZE SZ_1M + +/** + * process_elf_command_stream() - Process ELF firmware image and populate + * firmware sections + * @pvr_dev: Device pointer. + * @fw: Pointer to firmware image. + * @fw_code_ptr: Pointer to FW code section. + * @fw_data_ptr: Pointer to FW data section. + * @fw_core_code_ptr: Pointer to FW coremem code section. + * @fw_core_data_ptr: Pointer to FW coremem data section. + * + * Returns : + * * 0 on success, or + * * -EINVAL on any error in ELF command stream. + */ +static int +process_elf_command_stream(struct pvr_device *pvr_dev, const u8 *fw, u8 *fw_code_ptr, + u8 *fw_data_ptr, u8 *fw_core_code_ptr, u8 *fw_core_data_ptr) +{ + struct elf32_hdr *header = (struct elf32_hdr *)fw; + struct elf32_phdr *program_header = (struct elf32_phdr *)(fw + header->e_phoff); + struct drm_device *drm_dev = from_pvr_device(pvr_dev); + u32 entry; + int err; + + for (entry = 0; entry < header->e_phnum; entry++, program_header++) { + void *write_addr; + + /* Only consider loadable entries in the ELF segment table */ + if (program_header->p_type != PT_LOAD) + continue; + + err = pvr_fw_find_mmu_segment(pvr_dev, program_header->p_vaddr, + program_header->p_memsz, fw_code_ptr, fw_data_ptr, + fw_core_code_ptr, fw_core_data_ptr, &write_addr); + if (err) { + drm_err(drm_dev, + "Addr 0x%x (size: %d) not found in any firmware segment", + program_header->p_vaddr, program_header->p_memsz); + return err; + } + + /* Write to FW allocation only if available */ + if (write_addr) { + memcpy(write_addr, fw + program_header->p_offset, + program_header->p_filesz); + + memset((u8 *)write_addr + program_header->p_filesz, 0, + program_header->p_memsz - program_header->p_filesz); + } + } + + return 0; +} + +static int +pvr_mips_init(struct pvr_device *pvr_dev) +{ + pvr_fw_heap_info_init(pvr_dev, ROGUE_FW_HEAP_MIPS_SHIFT, ROGUE_FW_HEAP_MIPS_RESERVED_SIZE); + + return pvr_vm_mips_init(pvr_dev); +} + +static void +pvr_mips_fini(struct pvr_device *pvr_dev) +{ + pvr_vm_mips_fini(pvr_dev); +} + +static int +pvr_mips_fw_process(struct pvr_device *pvr_dev, const u8 *fw, + u8 *fw_code_ptr, u8 *fw_data_ptr, u8 *fw_core_code_ptr, u8 *fw_core_data_ptr, + u32 core_code_alloc_size) +{ + struct pvr_fw_device *fw_dev = &pvr_dev->fw_dev; + struct pvr_fw_mips_data *mips_data = fw_dev->processor_data.mips_data; + const struct pvr_fw_layout_entry *boot_code_entry; + const struct pvr_fw_layout_entry *boot_data_entry; + const struct pvr_fw_layout_entry *exception_code_entry; + const struct pvr_fw_layout_entry *stack_entry; + struct rogue_mipsfw_boot_data *boot_data; + dma_addr_t dma_addr; + u32 page_nr; + int err; + + err = process_elf_command_stream(pvr_dev, fw, fw_code_ptr, fw_data_ptr, fw_core_code_ptr, + fw_core_data_ptr); + if (err) + return err; + + boot_code_entry = pvr_fw_find_layout_entry(pvr_dev, MIPS_BOOT_CODE); + boot_data_entry = pvr_fw_find_layout_entry(pvr_dev, MIPS_BOOT_DATA); + exception_code_entry = pvr_fw_find_layout_entry(pvr_dev, MIPS_EXCEPTIONS_CODE); + if (!boot_code_entry || !boot_data_entry || !exception_code_entry) + return -EINVAL; + + WARN_ON(pvr_gem_get_dma_addr(fw_dev->mem.code_obj->gem, boot_code_entry->alloc_offset, + &mips_data->boot_code_dma_addr)); + WARN_ON(pvr_gem_get_dma_addr(fw_dev->mem.data_obj->gem, boot_data_entry->alloc_offset, + &mips_data->boot_data_dma_addr)); + WARN_ON(pvr_gem_get_dma_addr(fw_dev->mem.code_obj->gem, + exception_code_entry->alloc_offset, + &mips_data->exception_code_dma_addr)); + + stack_entry = pvr_fw_find_layout_entry(pvr_dev, MIPS_STACK); + if (!stack_entry) + return -EINVAL; + + boot_data = (struct rogue_mipsfw_boot_data *)(fw_data_ptr + boot_data_entry->alloc_offset + + ROGUE_MIPSFW_BOOTLDR_CONF_OFFSET); + + WARN_ON(pvr_fw_object_get_dma_addr(fw_dev->mem.data_obj, stack_entry->alloc_offset, + &dma_addr)); + boot_data->stack_phys_addr = dma_addr; + + boot_data->reg_base = pvr_dev->regs_resource->start; + + for (page_nr = 0; page_nr < ARRAY_SIZE(boot_data->pt_phys_addr); page_nr++) { + /* Firmware expects 4k pages, but host page size might be different. */ + u32 src_page_nr = (page_nr * ROGUE_MIPSFW_PAGE_SIZE_4K) >> PAGE_SHIFT; + u32 page_offset = (page_nr * ROGUE_MIPSFW_PAGE_SIZE_4K) & ~PAGE_MASK; + + boot_data->pt_phys_addr[page_nr] = mips_data->pt_dma_addr[src_page_nr] + + page_offset; + } + + boot_data->pt_log2_page_size = ROGUE_MIPSFW_LOG2_PAGE_SIZE_4K; + boot_data->pt_num_pages = ROGUE_MIPSFW_MAX_NUM_PAGETABLE_PAGES; + boot_data->reserved1 = 0; + boot_data->reserved2 = 0; + + return 0; +} + +static int +pvr_mips_wrapper_init(struct pvr_device *pvr_dev) +{ + struct pvr_fw_mips_data *mips_data = pvr_dev->fw_dev.processor_data.mips_data; + const u64 remap_settings = ROGUE_MIPSFW_BOOT_REMAP_LOG2_SEGMENT_SIZE; + u32 phys_bus_width; + + int err = PVR_FEATURE_VALUE(pvr_dev, phys_bus_width, &phys_bus_width); + + if (WARN_ON(err)) + return err; + + /* Currently MIPS FW only supported with physical bus width > 32 bits. */ + if (WARN_ON(phys_bus_width <= 32)) + return -EINVAL; + + pvr_cr_write32(pvr_dev, ROGUE_CR_MIPS_WRAPPER_CONFIG, + (ROGUE_MIPSFW_REGISTERS_VIRTUAL_BASE >> + ROGUE_MIPSFW_WRAPPER_CONFIG_REGBANK_ADDR_ALIGN) | + ROGUE_CR_MIPS_WRAPPER_CONFIG_BOOT_ISA_MODE_MICROMIPS); + + /* Configure remap for boot code, boot data and exceptions code areas. */ + pvr_cr_write64(pvr_dev, ROGUE_CR_MIPS_ADDR_REMAP1_CONFIG1, + ROGUE_MIPSFW_BOOT_REMAP_PHYS_ADDR_IN | + ROGUE_CR_MIPS_ADDR_REMAP1_CONFIG1_MODE_ENABLE_EN); + pvr_cr_write64(pvr_dev, ROGUE_CR_MIPS_ADDR_REMAP1_CONFIG2, + (mips_data->boot_code_dma_addr & + ~ROGUE_CR_MIPS_ADDR_REMAP1_CONFIG2_ADDR_OUT_CLRMSK) | remap_settings); + + if (PVR_HAS_QUIRK(pvr_dev, 63553)) { + /* + * WA always required on 36 bit cores, to avoid continuous unmapped memory accesses + * to address 0x0. + */ + WARN_ON(phys_bus_width != 36); + + pvr_cr_write64(pvr_dev, ROGUE_CR_MIPS_ADDR_REMAP5_CONFIG1, + ROGUE_CR_MIPS_ADDR_REMAP5_CONFIG1_MODE_ENABLE_EN); + pvr_cr_write64(pvr_dev, ROGUE_CR_MIPS_ADDR_REMAP5_CONFIG2, + (mips_data->boot_code_dma_addr & + ~ROGUE_CR_MIPS_ADDR_REMAP5_CONFIG2_ADDR_OUT_CLRMSK) | + remap_settings); + } + + pvr_cr_write64(pvr_dev, ROGUE_CR_MIPS_ADDR_REMAP2_CONFIG1, + ROGUE_MIPSFW_DATA_REMAP_PHYS_ADDR_IN | + ROGUE_CR_MIPS_ADDR_REMAP2_CONFIG1_MODE_ENABLE_EN); + pvr_cr_write64(pvr_dev, ROGUE_CR_MIPS_ADDR_REMAP2_CONFIG2, + (mips_data->boot_data_dma_addr & + ~ROGUE_CR_MIPS_ADDR_REMAP2_CONFIG2_ADDR_OUT_CLRMSK) | remap_settings); + + pvr_cr_write64(pvr_dev, ROGUE_CR_MIPS_ADDR_REMAP3_CONFIG1, + ROGUE_MIPSFW_CODE_REMAP_PHYS_ADDR_IN | + ROGUE_CR_MIPS_ADDR_REMAP3_CONFIG1_MODE_ENABLE_EN); + pvr_cr_write64(pvr_dev, ROGUE_CR_MIPS_ADDR_REMAP3_CONFIG2, + (mips_data->exception_code_dma_addr & + ~ROGUE_CR_MIPS_ADDR_REMAP3_CONFIG2_ADDR_OUT_CLRMSK) | remap_settings); + + /* Garten IDLE bit controlled by MIPS. */ + pvr_cr_write64(pvr_dev, ROGUE_CR_MTS_GARTEN_WRAPPER_CONFIG, + ROGUE_CR_MTS_GARTEN_WRAPPER_CONFIG_IDLE_CTRL_META); + + /* Turn on the EJTAG probe. */ + pvr_cr_write32(pvr_dev, ROGUE_CR_MIPS_DEBUG_CONFIG, 0); + + return 0; +} + +static u32 +pvr_mips_get_fw_addr_with_offset(struct pvr_fw_object *fw_obj, u32 offset) +{ + struct pvr_device *pvr_dev = to_pvr_device(gem_from_pvr_gem(fw_obj->gem)->dev); + + /* MIPS cacheability is determined by page table. */ + return ((fw_obj->fw_addr_offset + offset) & pvr_dev->fw_dev.fw_heap_info.offset_mask) | + ROGUE_FW_HEAP_MIPS_BASE; +} + +static bool +pvr_mips_has_fixed_data_addr(void) +{ + return true; +} + +const struct pvr_fw_defs pvr_fw_defs_mips = { + .init = pvr_mips_init, + .fini = pvr_mips_fini, + .fw_process = pvr_mips_fw_process, + .vm_map = pvr_vm_mips_map, + .vm_unmap = pvr_vm_mips_unmap, + .get_fw_addr_with_offset = pvr_mips_get_fw_addr_with_offset, + .wrapper_init = pvr_mips_wrapper_init, + .has_fixed_data_addr = pvr_mips_has_fixed_data_addr, + .irq = { + .enable_reg = ROGUE_CR_MIPS_WRAPPER_IRQ_ENABLE, + .status_reg = ROGUE_CR_MIPS_WRAPPER_IRQ_STATUS, + .clear_reg = ROGUE_CR_MIPS_WRAPPER_IRQ_CLEAR, + .event_mask = ROGUE_CR_MIPS_WRAPPER_IRQ_STATUS_EVENT_EN, + .clear_mask = ROGUE_CR_MIPS_WRAPPER_IRQ_CLEAR_EVENT_EN, + }, +}; diff --git a/drivers/gpu/drm/imagination/pvr_fw_mips.h b/drivers/gpu/drm/imagination/pvr_fw_mips.h new file mode 100644 index 000000000000..676b2d279796 --- /dev/null +++ b/drivers/gpu/drm/imagination/pvr_fw_mips.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0 OR MIT */ +/* Copyright (c) 2023 Imagination Technologies Ltd. */ + +#ifndef PVR_FW_MIPS_H +#define PVR_FW_MIPS_H + +#include "pvr_rogue_mips.h" + +#include +#include + +/* Forward declaration from pvr_gem.h. */ +struct pvr_gem_object; + +#define PVR_MIPS_PT_PAGE_COUNT ((ROGUE_MIPSFW_MAX_NUM_PAGETABLE_PAGES * ROGUE_MIPSFW_PAGE_SIZE_4K) \ + >> PAGE_SHIFT) +/** + * struct pvr_fw_mips_data - MIPS-specific data + */ +struct pvr_fw_mips_data { + /** + * @pt_pages: Pages containing MIPS pagetable. + */ + struct page *pt_pages[PVR_MIPS_PT_PAGE_COUNT]; + + /** @pt: Pointer to CPU mapping of MIPS pagetable. */ + u32 *pt; + + /** @pt_dma_addr: DMA mappings of MIPS pagetable. */ + dma_addr_t pt_dma_addr[PVR_MIPS_PT_PAGE_COUNT]; + + /** @boot_code_dma_addr: DMA address of MIPS boot code. */ + dma_addr_t boot_code_dma_addr; + + /** @boot_data_dma_addr: DMA address of MIPS boot data. */ + dma_addr_t boot_data_dma_addr; + + /** @exception_code_dma_addr: DMA address of MIPS exception code. */ + dma_addr_t exception_code_dma_addr; + + /** @cache_policy: Cache policy for this processor. */ + u32 cache_policy; + + /** @pfn_mask: PFN mask for MIPS pagetable. */ + u32 pfn_mask; +}; + +#endif /* PVR_FW_MIPS_H */ diff --git a/drivers/gpu/drm/imagination/pvr_vm_mips.c b/drivers/gpu/drm/imagination/pvr_vm_mips.c new file mode 100644 index 000000000000..8f7730e0e4fa --- /dev/null +++ b/drivers/gpu/drm/imagination/pvr_vm_mips.c @@ -0,0 +1,236 @@ +// SPDX-License-Identifier: GPL-2.0 OR MIT +/* Copyright (c) 2023 Imagination Technologies Ltd. */ + +#include "pvr_device.h" +#include "pvr_fw_mips.h" +#include "pvr_gem.h" +#include "pvr_mmu.h" +#include "pvr_rogue_mips.h" +#include "pvr_vm.h" +#include "pvr_vm_mips.h" + +#include +#include +#include +#include +#include + +/** + * pvr_vm_mips_init() - Initialise MIPS FW pagetable + * @pvr_dev: Target PowerVR device. + * + * Returns: + * * 0 on success, + * * -%EINVAL, + * * Any error returned by pvr_gem_object_create(), or + * * And error returned by pvr_gem_object_vmap(). + */ +int +pvr_vm_mips_init(struct pvr_device *pvr_dev) +{ + u32 pt_size = 1 << ROGUE_MIPSFW_LOG2_PAGETABLE_SIZE_4K(pvr_dev); + struct device *dev = from_pvr_device(pvr_dev)->dev; + struct pvr_fw_mips_data *mips_data; + u32 phys_bus_width; + int page_nr; + int err; + + /* Page table size must be at most ROGUE_MIPSFW_MAX_NUM_PAGETABLE_PAGES * 4k pages. */ + if (pt_size > ROGUE_MIPSFW_MAX_NUM_PAGETABLE_PAGES * SZ_4K) + return -EINVAL; + + if (PVR_FEATURE_VALUE(pvr_dev, phys_bus_width, &phys_bus_width)) + return -EINVAL; + + mips_data = drmm_kzalloc(from_pvr_device(pvr_dev), sizeof(*mips_data), GFP_KERNEL); + if (!mips_data) + return -ENOMEM; + + for (page_nr = 0; page_nr < ARRAY_SIZE(mips_data->pt_pages); page_nr++) { + mips_data->pt_pages[page_nr] = alloc_page(GFP_KERNEL | __GFP_ZERO); + if (!mips_data->pt_pages[page_nr]) { + err = -ENOMEM; + goto err_free_pages; + } + + mips_data->pt_dma_addr[page_nr] = dma_map_page(dev, mips_data->pt_pages[page_nr], 0, + PAGE_SIZE, DMA_TO_DEVICE); + if (dma_mapping_error(dev, mips_data->pt_dma_addr[page_nr])) { + err = -ENOMEM; + goto err_free_pages; + } + } + + mips_data->pt = vmap(mips_data->pt_pages, pt_size >> PAGE_SHIFT, VM_MAP, + pgprot_writecombine(PAGE_KERNEL)); + if (!mips_data->pt) { + err = -ENOMEM; + goto err_free_pages; + } + + mips_data->pfn_mask = (phys_bus_width > 32) ? ROGUE_MIPSFW_ENTRYLO_PFN_MASK_ABOVE_32BIT : + ROGUE_MIPSFW_ENTRYLO_PFN_MASK; + + mips_data->cache_policy = (phys_bus_width > 32) ? ROGUE_MIPSFW_CACHED_POLICY_ABOVE_32BIT : + ROGUE_MIPSFW_CACHED_POLICY; + + pvr_dev->fw_dev.processor_data.mips_data = mips_data; + + return 0; + +err_free_pages: + for (; page_nr >= 0; page_nr--) { + if (mips_data->pt_dma_addr[page_nr]) + dma_unmap_page(from_pvr_device(pvr_dev)->dev, + mips_data->pt_dma_addr[page_nr], PAGE_SIZE, DMA_TO_DEVICE); + + if (mips_data->pt_pages[page_nr]) + __free_page(mips_data->pt_pages[page_nr]); + } + + return err; +} + +/** + * pvr_vm_mips_fini() - Release MIPS FW pagetable + * @pvr_dev: Target PowerVR device. + */ +void +pvr_vm_mips_fini(struct pvr_device *pvr_dev) +{ + struct pvr_fw_device *fw_dev = &pvr_dev->fw_dev; + struct pvr_fw_mips_data *mips_data = fw_dev->processor_data.mips_data; + int page_nr; + + vunmap(mips_data->pt); + for (page_nr = ARRAY_SIZE(mips_data->pt_pages) - 1; page_nr >= 0; page_nr--) { + dma_unmap_page(from_pvr_device(pvr_dev)->dev, + mips_data->pt_dma_addr[page_nr], PAGE_SIZE, DMA_TO_DEVICE); + + __free_page(mips_data->pt_pages[page_nr]); + } + + fw_dev->processor_data.mips_data = NULL; +} + +static u32 +get_mips_pte_flags(bool read, bool write, u32 cache_policy) +{ + u32 flags = 0; + + if (read && write) /* Read/write. */ + flags |= ROGUE_MIPSFW_ENTRYLO_DIRTY_EN; + else if (write) /* Write only. */ + flags |= ROGUE_MIPSFW_ENTRYLO_READ_INHIBIT_EN; + else + WARN_ON(!read); + + flags |= cache_policy << ROGUE_MIPSFW_ENTRYLO_CACHE_POLICY_SHIFT; + + flags |= ROGUE_MIPSFW_ENTRYLO_VALID_EN | ROGUE_MIPSFW_ENTRYLO_GLOBAL_EN; + + return flags; +} + +/** + * pvr_vm_mips_map() - Map a FW object into MIPS address space + * @pvr_dev: Target PowerVR device. + * @fw_obj: FW object to map. + * + * Returns: + * * 0 on success, + * * -%EINVAL if object does not reside within FW address space, or + * * Any error returned by pvr_fw_object_get_dma_addr(). + */ +int +pvr_vm_mips_map(struct pvr_device *pvr_dev, struct pvr_fw_object *fw_obj) +{ + struct pvr_fw_device *fw_dev = &pvr_dev->fw_dev; + struct pvr_fw_mips_data *mips_data = fw_dev->processor_data.mips_data; + struct pvr_gem_object *pvr_obj = fw_obj->gem; + u64 start = fw_obj->fw_mm_node.start; + u64 size = fw_obj->fw_mm_node.size; + u64 end; + u32 cache_policy; + u32 pte_flags; + u32 start_pfn; + u32 end_pfn; + s32 pfn; + int err; + + if (check_add_overflow(start, size - 1, &end)) + return -EINVAL; + + if (start < ROGUE_FW_HEAP_BASE || + start >= ROGUE_FW_HEAP_BASE + fw_dev->fw_heap_info.raw_size || + end < ROGUE_FW_HEAP_BASE || + end >= ROGUE_FW_HEAP_BASE + fw_dev->fw_heap_info.raw_size || + (start & ROGUE_MIPSFW_PAGE_MASK_4K) || + ((end + 1) & ROGUE_MIPSFW_PAGE_MASK_4K)) + return -EINVAL; + + start_pfn = (start & fw_dev->fw_heap_info.offset_mask) >> ROGUE_MIPSFW_LOG2_PAGE_SIZE_4K; + end_pfn = (end & fw_dev->fw_heap_info.offset_mask) >> ROGUE_MIPSFW_LOG2_PAGE_SIZE_4K; + + if (pvr_obj->flags & PVR_BO_FW_FLAGS_DEVICE_UNCACHED) + cache_policy = ROGUE_MIPSFW_UNCACHED_CACHE_POLICY; + else + cache_policy = mips_data->cache_policy; + + pte_flags = get_mips_pte_flags(true, true, cache_policy); + + for (pfn = start_pfn; pfn <= end_pfn; pfn++) { + dma_addr_t dma_addr; + u32 pte; + + err = pvr_fw_object_get_dma_addr(fw_obj, + (pfn - start_pfn) << + ROGUE_MIPSFW_LOG2_PAGE_SIZE_4K, + &dma_addr); + if (err) + goto err_unmap_pages; + + pte = ((dma_addr >> ROGUE_MIPSFW_LOG2_PAGE_SIZE_4K) + << ROGUE_MIPSFW_ENTRYLO_PFN_SHIFT) & mips_data->pfn_mask; + pte |= pte_flags; + + WRITE_ONCE(mips_data->pt[pfn], pte); + } + + pvr_mmu_flush(pvr_dev); + + return 0; + +err_unmap_pages: + for (; pfn >= start_pfn; pfn--) + WRITE_ONCE(mips_data->pt[pfn], 0); + + pvr_mmu_flush(pvr_dev); + + return err; +} + +/** + * pvr_vm_mips_unmap() - Unmap a FW object into MIPS address space + * @pvr_dev: Target PowerVR device. + * @fw_obj: FW object to unmap. + */ +void +pvr_vm_mips_unmap(struct pvr_device *pvr_dev, struct pvr_fw_object *fw_obj) +{ + struct pvr_fw_device *fw_dev = &pvr_dev->fw_dev; + struct pvr_fw_mips_data *mips_data = fw_dev->processor_data.mips_data; + u64 start = fw_obj->fw_mm_node.start; + u64 size = fw_obj->fw_mm_node.size; + u64 end = start + size; + + u32 start_pfn = (start & fw_dev->fw_heap_info.offset_mask) >> + ROGUE_MIPSFW_LOG2_PAGE_SIZE_4K; + u32 end_pfn = (end & fw_dev->fw_heap_info.offset_mask) >> ROGUE_MIPSFW_LOG2_PAGE_SIZE_4K; + u32 pfn; + + for (pfn = start_pfn; pfn < end_pfn; pfn++) + WRITE_ONCE(mips_data->pt[pfn], 0); + + pvr_mmu_flush(pvr_dev); +} diff --git a/drivers/gpu/drm/imagination/pvr_vm_mips.h b/drivers/gpu/drm/imagination/pvr_vm_mips.h new file mode 100644 index 000000000000..71d238d5327a --- /dev/null +++ b/drivers/gpu/drm/imagination/pvr_vm_mips.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0 OR MIT */ +/* Copyright (c) 2023 Imagination Technologies Ltd. */ + +#ifndef PVR_VM_MIPS_H +#define PVR_VM_MIPS_H + +/* Forward declaration from pvr_device.h. */ +struct pvr_device; + +/* Forward declaration from pvr_gem.h. */ +struct pvr_fw_object; + +int +pvr_vm_mips_init(struct pvr_device *pvr_dev); +void +pvr_vm_mips_fini(struct pvr_device *pvr_dev); +int +pvr_vm_mips_map(struct pvr_device *pvr_dev, struct pvr_fw_object *fw_obj); +void +pvr_vm_mips_unmap(struct pvr_device *pvr_dev, struct pvr_fw_object *fw_obj); + +#endif /* PVR_VM_MIPS_H */