From patchwork Tue Oct 3 11:33:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sui Jingfeng X-Patchwork-Id: 13407504 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 20A0FE75451 for ; Tue, 3 Oct 2023 11:34:17 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5937610E0ED; Tue, 3 Oct 2023 11:34:05 +0000 (UTC) Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by gabe.freedesktop.org (Postfix) with ESMTP id 6237E10E0DF; Tue, 3 Oct 2023 11:34:00 +0000 (UTC) Received: from loongson.cn (unknown [10.20.42.43]) by gateway (Coremail) with SMTP id _____8AxTesn_BtlG80uAA--.18678S3; Tue, 03 Oct 2023 19:33:59 +0800 (CST) Received: from openarena.loongson.cn (unknown [10.20.42.43]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Cx7y8k_Btl7JAXAA--.48472S6; Tue, 03 Oct 2023 19:33:58 +0800 (CST) From: Sui Jingfeng To: Lucas Stach Subject: [PATCH v11 4/5] drm/etnaviv: Add driver support for the PCI devices Date: Tue, 3 Oct 2023 19:33:55 +0800 Message-Id: <20231003113356.645394-5-suijingfeng@loongson.cn> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231003113356.645394-1-suijingfeng@loongson.cn> References: <20231003113356.645394-1-suijingfeng@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8Cx7y8k_Btl7JAXAA--.48472S6 X-CM-SenderInfo: xvxlyxpqjiv03j6o00pqjv00gofq/ X-Coremail-Antispam: 1Uk129KBj93XoW3Xr1DZr1fGr48WFy5uF4UAwc_yoWxuF1UpF 4rJFyYyry0vFWUK347JF1rZFy3K3WIgFyS93srJwn0vws8AryUXryqkFyDAr98JrZ3GFy3 trn8Kry7uF4UAFXCm3ZEXasCq-sJn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUk2b4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVCY1x0267AK xVW8Jr0_Cr1UM2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12xvs2x26I8E6xACxx 1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r1q6rW5McIj6I8E87Iv 67AKxVW8JVWxJwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41l42xK82IYc2 Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s02 6x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r126r1DMIIYrxkI7VAKI48JMIIF0x vE2Ix0cI8IcVAFwI0_Gr0_Xr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE 42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVW8JVWxJwCI42IY6I8E87Iv6x kF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjxUcCD7UUUUU 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: Christian Gmeiner , etnaviv@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" There is a Vivante GC1000 GPU (v5037) in Loongson LS2K1000 (0x0014:0x7a05) and LS7A1000 (0x0014:0x7a15), the GPU in these chips is a PCI(e) device. This patch adds PCI driver wrapper for this gpu. This GPU has only one GPU core, there no need to bind to anything for now. Hence, the component framework get bypassed. Signed-off-by: Sui Jingfeng --- drivers/gpu/drm/etnaviv/Kconfig | 8 +++ drivers/gpu/drm/etnaviv/Makefile | 2 + drivers/gpu/drm/etnaviv/etnaviv_drv.c | 10 ++- drivers/gpu/drm/etnaviv/etnaviv_drv.h | 3 + drivers/gpu/drm/etnaviv/etnaviv_pci_drv.c | 74 +++++++++++++++++++++++ drivers/gpu/drm/etnaviv/etnaviv_pci_drv.h | 18 ++++++ 6 files changed, 113 insertions(+), 2 deletions(-) create mode 100644 drivers/gpu/drm/etnaviv/etnaviv_pci_drv.c create mode 100644 drivers/gpu/drm/etnaviv/etnaviv_pci_drv.h diff --git a/drivers/gpu/drm/etnaviv/Kconfig b/drivers/gpu/drm/etnaviv/Kconfig index faa7fc68b009..38c251585ec1 100644 --- a/drivers/gpu/drm/etnaviv/Kconfig +++ b/drivers/gpu/drm/etnaviv/Kconfig @@ -15,6 +15,14 @@ config DRM_ETNAVIV help DRM driver for Vivante GPUs. +config DRM_ETNAVIV_PCI_DRIVER + bool "enable ETNAVIV PCI driver support" + depends on DRM_ETNAVIV + depends on PCI + help + Compile in support for Vivante GPUs attached via PCI(e). + Say Y if you have such hardwares. + config DRM_ETNAVIV_THERMAL bool "enable ETNAVIV thermal throttling" depends on DRM_ETNAVIV diff --git a/drivers/gpu/drm/etnaviv/Makefile b/drivers/gpu/drm/etnaviv/Makefile index 46e5ffad69a6..6829e1ebf2db 100644 --- a/drivers/gpu/drm/etnaviv/Makefile +++ b/drivers/gpu/drm/etnaviv/Makefile @@ -16,4 +16,6 @@ etnaviv-y := \ etnaviv_perfmon.o \ etnaviv_sched.o +etnaviv-$(CONFIG_DRM_ETNAVIV_PCI_DRIVER) += etnaviv_pci_drv.o + obj-$(CONFIG_DRM_ETNAVIV) += etnaviv.o diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c index 0b68c76d117e..8db86120b11d 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c @@ -23,6 +23,7 @@ #include "etnaviv_gpu.h" #include "etnaviv_gem.h" #include "etnaviv_mmu.h" +#include "etnaviv_pci_drv.h" #include "etnaviv_perfmon.h" static struct etnaviv_drm_private *etna_drm_priv_ptr; @@ -547,7 +548,7 @@ static const struct drm_driver etnaviv_drm_driver = { .minor = 3, }; -static int etnaviv_drm_bind(struct device *dev, bool component) +int etnaviv_drm_bind(struct device *dev, bool component) { struct etnaviv_drm_private *priv; struct drm_device *drm; @@ -598,7 +599,7 @@ static int etnaviv_drm_bind(struct device *dev, bool component) return ret; } -static void etnaviv_drm_unbind(struct device *dev, bool component) +void etnaviv_drm_unbind(struct device *dev, bool component) { struct etnaviv_drm_private *priv = etna_drm_priv_ptr; struct drm_device *drm = priv->drm; @@ -758,6 +759,10 @@ static int __init etnaviv_init(void) if (ret != 0) goto unregister_gpu_driver; + ret = etnaviv_register_pci_driver(); + if (ret != 0) + goto unregister_platform_driver; + /* * If the DT contains at least one available GPU device, instantiate * the DRM platform device. @@ -786,6 +791,7 @@ static void __exit etnaviv_exit(void) etnaviv_destroy_platform_device(&etnaviv_drm); platform_driver_unregister(&etnaviv_platform_driver); platform_driver_unregister(&etnaviv_gpu_driver); + etnaviv_unregister_pci_driver(); } module_exit(etnaviv_exit); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h index e58f82e698de..9cd72948cfad 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h @@ -83,6 +83,9 @@ bool etnaviv_cmd_validate_one(struct etnaviv_gpu *gpu, u32 *stream, unsigned int size, struct drm_etnaviv_gem_submit_reloc *relocs, unsigned int reloc_size); +int etnaviv_drm_bind(struct device *dev, bool component); +void etnaviv_drm_unbind(struct device *dev, bool component); + #ifdef CONFIG_DEBUG_FS void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv, struct seq_file *m); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_pci_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_pci_drv.c new file mode 100644 index 000000000000..37de661844d8 --- /dev/null +++ b/drivers/gpu/drm/etnaviv/etnaviv_pci_drv.c @@ -0,0 +1,74 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include + +#include "etnaviv_drv.h" +#include "etnaviv_gpu.h" +#include "etnaviv_pci_drv.h" + +static int etnaviv_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct device *dev = &pdev->dev; + void __iomem *mmio; + int ret; + + ret = pcim_enable_device(pdev); + if (ret) { + dev_err(dev, "failed to enable\n"); + return ret; + } + + pci_set_master(pdev); + + ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); + if (ret) + return ret; + + /* PCI bar 0 contain the MMIO registers */ + mmio = pcim_iomap(pdev, 0, 0); + if (IS_ERR(mmio)) + return PTR_ERR(mmio); + + ret = etnaviv_gpu_driver_create(dev, mmio, pdev->irq, false, false); + if (ret) + return ret; + + return etnaviv_drm_bind(dev, false); +} + +static void etnaviv_pci_remove(struct pci_dev *pdev) +{ + struct device *dev = &pdev->dev; + + etnaviv_drm_unbind(dev, false); + + etnaviv_gpu_driver_destroy(dev, false); + + pci_clear_master(pdev); +} + +static const struct pci_device_id etnaviv_pci_id_lists[] = { + {PCI_VDEVICE(LOONGSON, 0x7a15)}, + {PCI_VDEVICE(LOONGSON, 0x7a05)}, + { } +}; + +static struct pci_driver etnaviv_pci_driver = { + .name = "etnaviv", + .id_table = etnaviv_pci_id_lists, + .probe = etnaviv_pci_probe, + .remove = etnaviv_pci_remove, +}; + +int etnaviv_register_pci_driver(void) +{ + return pci_register_driver(&etnaviv_pci_driver); +} + +void etnaviv_unregister_pci_driver(void) +{ + pci_unregister_driver(&etnaviv_pci_driver); +} + +MODULE_DEVICE_TABLE(pci, etnaviv_pci_id_lists); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_pci_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_pci_drv.h new file mode 100644 index 000000000000..1db559ee5e9b --- /dev/null +++ b/drivers/gpu/drm/etnaviv/etnaviv_pci_drv.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ETNAVIV_PCI_DRV_H__ +#define __ETNAVIV_PCI_DRV_H__ + +#ifdef CONFIG_DRM_ETNAVIV_PCI_DRIVER + +int etnaviv_register_pci_driver(void); +void etnaviv_unregister_pci_driver(void); + +#else + +static inline int etnaviv_register_pci_driver(void) { return 0; } +static inline void etnaviv_unregister_pci_driver(void) { } + +#endif + +#endif