From patchwork Mon Jul 29 08:43:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Usyskin X-Patchwork-Id: 815595 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2867E13C8EA for ; Mon, 29 Jul 2024 08:52:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.9 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722243168; cv=none; b=VDHVi6wogUcSWdJa0Lyt7HayFQkZu5NNJiWhH3hRfm87DaSr5xN8P4iHeoGhXpeMWVIy6IP8bzh2Bi7xdKMYuERO0u1/jHbEiReakoU8pabMQIWi+cnHyPVHnzu6Ch82HcE5jxnGcN5pGJMZe916bb7ACIGCiPldSL+Yc4smGs8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722243168; c=relaxed/simple; bh=El0scfnmwVJuyvH457KKoiHS3zxrwBhb1YkKAHvbGSk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=EDsTT1e9OQ9uy8HDzpK7GimaC3TXz7sm5AgQXLnmbn8DT/FCkk4YG3MzynCLkTA0Jy62iYRoS0FdrLXmOZKsyN1+7Gfg5AZiBNLyI01RWpM/d8bBKmKBVkswx6NQSh4GjZhAdGlocLslYJ+HVo2GmduI7o2D7bB53B3UIdM7l30= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=jH/S52B+; arc=none smtp.client-ip=198.175.65.9 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="jH/S52B+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1722243167; x=1753779167; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=El0scfnmwVJuyvH457KKoiHS3zxrwBhb1YkKAHvbGSk=; b=jH/S52B+1DzDtR/OarCbImR5N/4b8IBZOMMqIBalX095dAdwnyP9KjJL bbUI1jLXdC7QPS7D1ebca7tdmVXabuEB08qJk6kDhdgLfUE3BKeUzz4vG P+o+klb3Ldwf88B7aj/wMe+UTeAw4IzlKEPqVXbqSVj28bx8sPfich5Mm rZFihoQa7oBCbLq6gfKxth8wjsxBuraYXf9mko822oCWuS3wanZSTCF5r S3VGk+A7GNUtCC4LqXGCOBREuoxy6NWeQPOUzjrFybrg3Sx9iScR6kg3d KMvvCoJg4/O8IrhV/uzZhKT0vOdS5EdoEndTOEG8TPY3GIS4PBviSee5K w==; X-CSE-ConnectionGUID: mtPRIkZ8TuKDxC4x1K9Vww== X-CSE-MsgGUID: nq8qHwKiT0aFgPyiuIKqNQ== X-IronPort-AV: E=McAfee;i="6700,10204,11147"; a="42509143" X-IronPort-AV: E=Sophos;i="6.09,245,1716274800"; d="scan'208";a="42509143" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jul 2024 01:52:47 -0700 X-CSE-ConnectionGUID: jeCUQbveSI2B1FMNrjMoCA== X-CSE-MsgGUID: /yOw5kJITweAlL8eo/HOuQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,245,1716274800"; d="scan'208";a="54708762" Received: from sannilnx-dsk.jer.intel.com ([10.12.231.107]) by orviesa008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jul 2024 01:52:42 -0700 From: Alexander Usyskin To: Mark Brown , Lucas De Marchi , Oded Gabbay , =?utf-8?q?Thomas_Hellstr=C3=B6m?= , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin Cc: Tomas Winkler , Alexander Usyskin , Vitaly Lubart , intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-spi@vger.kernel.org, intel-gfx@lists.freedesktop.org Subject: [PATCH v5 11/12] drm/xe/spi: add on-die spi device Date: Mon, 29 Jul 2024 11:43:25 +0300 Message-Id: <20240729084326.2278014-12-alexander.usyskin@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240729084326.2278014-1-alexander.usyskin@intel.com> References: <20240729084326.2278014-1-alexander.usyskin@intel.com> Precedence: bulk X-Mailing-List: linux-spi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Enable access to internal spi on DGFX with GSC/CSC devices via a child device. The spi child device is exposed via auxiliary bus. Signed-off-by: Alexander Usyskin --- drivers/gpu/drm/xe/Makefile | 1 + drivers/gpu/drm/xe/xe_device.c | 3 + drivers/gpu/drm/xe/xe_device_types.h | 8 +++ drivers/gpu/drm/xe/xe_pci.c | 5 ++ drivers/gpu/drm/xe/xe_spi.c | 82 ++++++++++++++++++++++++++++ drivers/gpu/drm/xe/xe_spi.h | 15 +++++ 6 files changed, 114 insertions(+) create mode 100644 drivers/gpu/drm/xe/xe_spi.c create mode 100644 drivers/gpu/drm/xe/xe_spi.h diff --git a/drivers/gpu/drm/xe/Makefile b/drivers/gpu/drm/xe/Makefile index 1ff9602a52f6..f98e26b81035 100644 --- a/drivers/gpu/drm/xe/Makefile +++ b/drivers/gpu/drm/xe/Makefile @@ -95,6 +95,7 @@ xe-y += xe_bb.o \ xe_ring_ops.o \ xe_sa.o \ xe_sched_job.o \ + xe_spi.o \ xe_step.o \ xe_sync.o \ xe_tile.o \ diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c index 1aba6f9eaa19..7b7aee91497e 100644 --- a/drivers/gpu/drm/xe/xe_device.c +++ b/drivers/gpu/drm/xe/xe_device.c @@ -47,6 +47,7 @@ #include "xe_pcode.h" #include "xe_pm.h" #include "xe_query.h" +#include "xe_spi.h" #include "xe_sriov.h" #include "xe_tile.h" #include "xe_ttm_stolen_mgr.h" @@ -720,6 +721,7 @@ int xe_device_probe(struct xe_device *xe) goto err_fini_gt; } + xe_spi_init(xe); xe_heci_gsc_init(xe); err = xe_oa_init(xe); @@ -788,6 +790,7 @@ void xe_device_remove(struct xe_device *xe) xe_oa_fini(xe); xe_heci_gsc_fini(xe); + xe_spi_fini(xe); for_each_gt(gt, xe, id) xe_gt_remove(gt); diff --git a/drivers/gpu/drm/xe/xe_device_types.h b/drivers/gpu/drm/xe/xe_device_types.h index 5b7292a9a66d..c41f6004eb5b 100644 --- a/drivers/gpu/drm/xe/xe_device_types.h +++ b/drivers/gpu/drm/xe/xe_device_types.h @@ -12,6 +12,8 @@ #include #include +#include + #include "xe_devcoredump_types.h" #include "xe_heci_gsc.h" #include "xe_gt_types.h" @@ -45,6 +47,7 @@ struct xe_pat_ops; #define IS_DGFX(xe) ((xe)->info.is_dgfx) #define HAS_HECI_GSCFI(xe) ((xe)->info.has_heci_gscfi) #define HAS_HECI_CSCFI(xe) ((xe)->info.has_heci_cscfi) +#define HAS_GSC_SPI(xe) ((xe)->info.has_gsc_spi) #define XE_VRAM_FLAGS_NEED64K BIT(0) @@ -292,6 +295,8 @@ struct xe_device { u8 has_heci_gscfi:1; /** @info.has_heci_cscfi: device has heci cscfi */ u8 has_heci_cscfi:1; + /** @info.has_gsc_spi: device has gsc spi */ + u8 has_gsc_spi:1; /** @info.skip_guc_pc: Skip GuC based PM feature init */ u8 skip_guc_pc:1; /** @info.has_atomic_enable_pte_bit: Device has atomic enable PTE bit */ @@ -470,6 +475,9 @@ struct xe_device { /** @heci_gsc: graphics security controller */ struct xe_heci_gsc heci_gsc; + /** @spi: discrete graphics spi */ + struct intel_dg_spi_dev spi; + /** @oa: oa observation subsystem */ struct xe_oa oa; diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c index 3c4a3c91377a..c74c36ee7fa6 100644 --- a/drivers/gpu/drm/xe/xe_pci.c +++ b/drivers/gpu/drm/xe/xe_pci.c @@ -60,6 +60,7 @@ struct xe_device_desc { u8 has_display:1; u8 has_heci_gscfi:1; u8 has_heci_cscfi:1; + u8 has_gsc_spi:1; u8 has_llc:1; u8 has_mmio_ext:1; u8 has_sriov:1; @@ -283,6 +284,7 @@ static const struct xe_device_desc dg1_desc = { PLATFORM(DG1), .has_display = true, .has_heci_gscfi = 1, + .has_gsc_spi = 1, .require_force_probe = true, }; @@ -294,6 +296,7 @@ static const u16 dg2_g12_ids[] = { XE_DG2_G12_IDS(NOP), 0 }; DGFX_FEATURES, \ PLATFORM(DG2), \ .has_heci_gscfi = 1, \ + .has_gsc_spi = 1, \ .subplatforms = (const struct xe_subplatform_desc[]) { \ { XE_SUBPLATFORM_DG2_G10, "G10", dg2_g10_ids }, \ { XE_SUBPLATFORM_DG2_G11, "G11", dg2_g11_ids }, \ @@ -325,6 +328,7 @@ static const __maybe_unused struct xe_device_desc pvc_desc = { PLATFORM(PVC), .has_display = false, .has_heci_gscfi = 1, + .has_gsc_spi = 1, .require_force_probe = true, }; @@ -609,6 +613,7 @@ static int xe_info_init_early(struct xe_device *xe, xe->info.is_dgfx = desc->is_dgfx; xe->info.has_heci_gscfi = desc->has_heci_gscfi; xe->info.has_heci_cscfi = desc->has_heci_cscfi; + xe->info.has_gsc_spi = desc->has_gsc_spi; xe->info.has_llc = desc->has_llc; xe->info.has_mmio_ext = desc->has_mmio_ext; xe->info.has_sriov = desc->has_sriov; diff --git a/drivers/gpu/drm/xe/xe_spi.c b/drivers/gpu/drm/xe/xe_spi.c new file mode 100644 index 000000000000..37080b82e9ae --- /dev/null +++ b/drivers/gpu/drm/xe/xe_spi.c @@ -0,0 +1,82 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2019-2024, Intel Corporation. All rights reserved. + */ + +#include +#include +#include "xe_device_types.h" +#include "xe_spi.h" +#include "xe_sriov.h" + +#define GEN12_GUNIT_SPI_BASE 0x00102040 +#define GEN12_GUNIT_SPI_SIZE 0x80 +#define HECI_FW_STATUS_2_SPI_ACCESS_MODE BIT(3) + +static const struct intel_dg_spi_region regions[INTEL_DG_SPI_REGIONS] = { + [0] = { .name = "DESCRIPTOR", }, + [2] = { .name = "GSC", }, + [11] = { .name = "OptionROM", }, + [12] = { .name = "DAM", }, +}; + +static void xe_spi_release_dev(struct device *dev) +{ +} + +void xe_spi_init(struct xe_device *xe) +{ + struct intel_dg_spi_dev *spi = &xe->spi; + struct pci_dev *pdev = to_pci_dev(xe->drm.dev); + struct auxiliary_device *aux_dev = &spi->aux_dev; + int ret; + + if (!HAS_GSC_SPI(xe)) + return; + + /* No access to internal SPI from VFs */ + if (IS_SRIOV_VF(xe)) + return; + + spi->writeable_override = false; + spi->bar.parent = &pdev->resource[0]; + spi->bar.start = GEN12_GUNIT_SPI_BASE + pdev->resource[0].start; + spi->bar.end = spi->bar.start + GEN12_GUNIT_SPI_SIZE - 1; + spi->bar.flags = IORESOURCE_MEM; + spi->bar.desc = IORES_DESC_NONE; + spi->regions = regions; + + aux_dev->name = "spi"; + aux_dev->id = (pci_domain_nr(pdev->bus) << 16) | + PCI_DEVID(pdev->bus->number, pdev->devfn); + aux_dev->dev.parent = &pdev->dev; + aux_dev->dev.release = xe_spi_release_dev; + + ret = auxiliary_device_init(aux_dev); + if (ret) { + dev_err(&pdev->dev, "xe-spi aux init failed %d\n", ret); + return; + } + + ret = auxiliary_device_add(aux_dev); + if (ret) { + dev_err(&pdev->dev, "xe-spi aux add failed %d\n", ret); + auxiliary_device_uninit(aux_dev); + return; + } +} + +void xe_spi_fini(struct xe_device *xe) +{ + struct intel_dg_spi_dev *spi = &xe->spi; + + if (!HAS_GSC_SPI(xe)) + return; + + /* No access to internal SPI from VFs */ + if (IS_SRIOV_VF(xe)) + return; + + auxiliary_device_delete(&spi->aux_dev); + auxiliary_device_uninit(&spi->aux_dev); +} diff --git a/drivers/gpu/drm/xe/xe_spi.h b/drivers/gpu/drm/xe/xe_spi.h new file mode 100644 index 000000000000..aef79893a864 --- /dev/null +++ b/drivers/gpu/drm/xe/xe_spi.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2019-2024 Intel Corporation. All rights reserved. + */ + +#ifndef __XE_SPI_H__ +#define __XE_SPI_H__ + +struct xe_device; + +void xe_spi_init(struct xe_device *xe); + +void xe_spi_fini(struct xe_device *xe); + +#endif /* __XE_SPI_H__ */