From patchwork Wed Jul 24 14:00:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Usyskin, Alexander" X-Patchwork-Id: 814316 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.9]) (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 C6AD7157E6C for ; Wed, 24 Jul 2024 14:09:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.9 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721830182; cv=none; b=iq4XtBnCzjJJVymcK599iQep2FDA/PwpEunGJecMSXMTMqfPRnBlOXqwwSpKB/wivPe9QYFwCiE+bAWgW82c6Ax0dyHIoeStRweTkt2MZvK4RP/C6RSAQJf8C1F2ymhiIsN2hW/yYrsRO6VkOEfh8mKsxV7nOoOmQax6/eGwvSU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721830182; c=relaxed/simple; bh=1UEtBVrG2X6xBW4IkFht3ceQs8CbwV3vmpqfzbwcvIg=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=uoqD9xyn3S36bFi74LHSHsSqSsgXyL7U91Y5VVWzsfJ7+zzj/QCz3tmCIWNMAeTjZKZxDiDS5BiHkbAF+EhbDDBCzmRFcHjL/oBuQK6ULthv6BnVH3xpGqNOBx0O6olYuUmFl8ybLEZBct7Je36Iyfaam2Y62e3JeR5MBbezc4o= 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=cvH0BRId; arc=none smtp.client-ip=192.198.163.9 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="cvH0BRId" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1721830181; x=1753366181; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=1UEtBVrG2X6xBW4IkFht3ceQs8CbwV3vmpqfzbwcvIg=; b=cvH0BRIdIv3eT3aFMMs5USUo9CWTb7YW98v4Lh8d9xWqg7VyzSPhJ3Cd xvn4S58DrO0plI7+HxlX/r7k0Tz30aIHMo78I4Pr7ogC+CKwJgl6fQFXC ItRJ/Y8aIlMT7YaE592cLJFmwqT4hLMRpZ21FjH2RJkF8ZYTF22E6A0o5 Rbd4qKk7yDejhi40c/Aj15cN5adgmF+35ysuAHcnC9hIX/8uQkvb3jj1D dsGZEZGGKsUrx4NJBJREeIjBheAaHYtNLNpE5BtAzdR78WTr4s44FD9Fv 3XpiRR8W9JFlktEmMTGWFQC71OCWvOEubyOLzm22Y8b4p6xl/76SyeQKt w==; X-CSE-ConnectionGUID: 4Pn7ueb5QeexdMDrRjKEhA== X-CSE-MsgGUID: Dk/Mu7sqQQ673Jondb34eA== X-IronPort-AV: E=McAfee;i="6700,10204,11143"; a="30173864" X-IronPort-AV: E=Sophos;i="6.09,233,1716274800"; d="scan'208";a="30173864" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jul 2024 07:09:40 -0700 X-CSE-ConnectionGUID: kWadJb8ERd6QCBgKxq2kRw== X-CSE-MsgGUID: KA09bUYqRGuVIW8v6dqdTw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,233,1716274800"; d="scan'208";a="83211574" Received: from sannilnx-dsk.jer.intel.com ([10.12.231.107]) by orviesa002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jul 2024 07:09:36 -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 v2 11/12] drm/xe/spi: add on-die spi device Date: Wed, 24 Jul 2024 17:00:13 +0300 Message-Id: <20240724140014.428991-12-alexander.usyskin@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240724140014.428991-1-alexander.usyskin@intel.com> References: <20240724140014.428991-1-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 | 73 ++++++++++++++++++++++++++++ drivers/gpu/drm/xe/xe_spi.h | 15 ++++++ 6 files changed, 105 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 b165bbf52aef..7dd1baa1a85f 100644 --- a/drivers/gpu/drm/xe/Makefile +++ b/drivers/gpu/drm/xe/Makefile @@ -130,6 +130,7 @@ 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 5ef9b50a20d0..8fca0ea65882 100644 --- a/drivers/gpu/drm/xe/xe_device.c +++ b/drivers/gpu/drm/xe/xe_device.c @@ -40,6 +40,7 @@ #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" @@ -634,6 +635,7 @@ int xe_device_probe(struct xe_device *xe) goto err_fini_gt; } + xe_spi_init(xe); xe_heci_gsc_init(xe); err = xe_display_init(xe); @@ -688,6 +690,7 @@ void xe_device_remove(struct xe_device *xe) xe_display_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 2e62450d86e1..77ffec80f3d0 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" @@ -39,6 +41,7 @@ struct xe_pat_ops; #define MEDIA_VERx100(xe) ((xe)->info.media_verx100) #define IS_DGFX(xe) ((xe)->info.is_dgfx) #define HAS_HECI_GSCFI(xe) ((xe)->info.has_heci_gscfi) +#define HAS_GSC_SPI(xe) ((xe)->info.has_gsc_spi) #define XE_VRAM_FLAGS_NEED64K BIT(0) @@ -279,6 +282,8 @@ struct xe_device { u8 skip_pcode:1; /** @info.has_heci_gscfi: device has heci gscfi */ u8 has_heci_gscfi: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; @@ -456,6 +461,9 @@ struct xe_device { /** @heci_gsc: graphics security controller */ struct xe_heci_gsc heci_gsc; + /** @spi: discrete graphics spi */ + struct intel_dg_spi_dev spi; + /** @needs_flr_on_fini: requests function-reset on fini */ bool needs_flr_on_fini; diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c index f326dbb1cecd..345b25c3a133 100644 --- a/drivers/gpu/drm/xe/xe_pci.c +++ b/drivers/gpu/drm/xe/xe_pci.c @@ -62,6 +62,7 @@ struct xe_device_desc { u8 has_display:1; u8 has_heci_gscfi:1; + u8 has_gsc_spi:1; u8 has_llc:1; u8 has_mmio_ext:1; u8 has_sriov:1; @@ -281,6 +282,7 @@ static const struct xe_device_desc dg1_desc = { PLATFORM(XE_DG1), .has_display = true, .has_heci_gscfi = 1, + .has_gsc_spi = 1, .require_force_probe = true, }; @@ -292,6 +294,7 @@ static const u16 dg2_g12_ids[] = { XE_DG2_G12_IDS(NOP), 0 }; DGFX_FEATURES, \ PLATFORM(XE_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 }, \ @@ -323,6 +326,7 @@ static const __maybe_unused struct xe_device_desc pvc_desc = { PLATFORM(XE_PVC), .has_display = false, .has_heci_gscfi = 1, + .has_gsc_spi = 1, .require_force_probe = true, }; @@ -560,6 +564,7 @@ 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_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..f8ad060f97f2 --- /dev/null +++ b/drivers/gpu/drm/xe/xe_spi.c @@ -0,0 +1,73 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2019-2024, Intel Corporation. All rights reserved. + */ + +#include +#include +#include "xe_device_types.h" +#include "xe_spi.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; + + 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; + + 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__ */