From patchwork Wed Jan 1 15:39:25 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Usyskin, Alexander" X-Patchwork-Id: 13924221 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 5AB75E77197 for ; Wed, 1 Jan 2025 15:51:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D05B210E2D6; Wed, 1 Jan 2025 15:51:36 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="egEe7pPD"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) by gabe.freedesktop.org (Postfix) with ESMTPS id ACE8B10E2D6; Wed, 1 Jan 2025 15:51:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1735746695; x=1767282695; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=BYrQ6XXN15Q62dp+R+Dj/9YVnt27WFN7NCjPk61qnA0=; b=egEe7pPDU37FVtssCcP6YO2JuRSviInhjWP0zkT73dJ7cvLSo8EAJxlK hq50R0kwnh3R0+S2E61B2I0c0ONrZT/lPe3lR56KRldQy+Hh3/DdnizM1 yoJmNFkCPuQ0rvG9yX/Bhodffzr+j2uzRzBYfYgveqGHGidJSix3+28cd c66sbvZr/yLqSDFwy8VynppAnaneQntJwkKOpdl4qnrZHstKsWVfaVPBR yLNDKh8bzu/I5wDylzlI7xOSMKSIVee9AWjiL2OSwEIbiW0ltSzAo86/S HXkN9iAD+wGuEwnISK9HyegM3Ey2maxaMsz7YqFp6prGj074hcmzVe2EG w==; X-CSE-ConnectionGUID: O+0XAF9sSKSLY3l3nht77Q== X-CSE-MsgGUID: tckZrxpyRamqjJbJf4gnIg== X-IronPort-AV: E=McAfee;i="6700,10204,11302"; a="46485687" X-IronPort-AV: E=Sophos;i="6.12,282,1728975600"; d="scan'208";a="46485687" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jan 2025 07:51:35 -0800 X-CSE-ConnectionGUID: KJgWP5qdRXu44kL+hv8Fkg== X-CSE-MsgGUID: eN0JYBWBQY22SX4DjsiT/w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,282,1728975600"; d="scan'208";a="132139034" 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; 01 Jan 2025 07:51:31 -0800 From: Alexander Usyskin To: Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Lucas De Marchi , =?utf-8?q?Thomas_Hellstr=C3=B6m?= , Rodrigo Vivi , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jani Nikula , Joonas Lahtinen , Tvrtko Ursulin , Karthik Poosa Cc: Reuven Abliyev , Oren Weil , linux-mtd@lists.infradead.org, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, Alexander Usyskin Subject: [PATCH v4 11/11] drm/xe/nvm: add support for access mode Date: Wed, 1 Jan 2025 17:39:25 +0200 Message-ID: <20250101153925.865703-12-alexander.usyskin@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250101153925.865703-1-alexander.usyskin@intel.com> References: <20250101153925.865703-1-alexander.usyskin@intel.com> MIME-Version: 1.0 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Check NVM access mode from GSC FW status registers and overwrite access status read from SPI descriptor, if needed. Reviewed-by: Rodrigo Vivi Signed-off-by: Alexander Usyskin --- drivers/gpu/drm/xe/regs/xe_gsc_regs.h | 4 ++++ drivers/gpu/drm/xe/xe_heci_gsc.c | 5 +---- drivers/gpu/drm/xe/xe_nvm.c | 32 ++++++++++++++++++++++++++- 3 files changed, 36 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/xe/regs/xe_gsc_regs.h b/drivers/gpu/drm/xe/regs/xe_gsc_regs.h index 7702364b65f1..9b66cc972a63 100644 --- a/drivers/gpu/drm/xe/regs/xe_gsc_regs.h +++ b/drivers/gpu/drm/xe/regs/xe_gsc_regs.h @@ -16,6 +16,10 @@ #define MTL_GSC_HECI1_BASE 0x00116000 #define MTL_GSC_HECI2_BASE 0x00117000 +#define DG1_GSC_HECI2_BASE 0x00259000 +#define PVC_GSC_HECI2_BASE 0x00285000 +#define DG2_GSC_HECI2_BASE 0x00374000 + #define HECI_H_CSR(base) XE_REG((base) + 0x4) #define HECI_H_CSR_IE REG_BIT(0) #define HECI_H_CSR_IS REG_BIT(1) diff --git a/drivers/gpu/drm/xe/xe_heci_gsc.c b/drivers/gpu/drm/xe/xe_heci_gsc.c index d765bfd3636b..68f8cc5a6064 100644 --- a/drivers/gpu/drm/xe/xe_heci_gsc.c +++ b/drivers/gpu/drm/xe/xe_heci_gsc.c @@ -11,14 +11,11 @@ #include "xe_device_types.h" #include "xe_drv.h" #include "xe_heci_gsc.h" +#include "regs/xe_gsc_regs.h" #include "xe_platform_types.h" #define GSC_BAR_LENGTH 0x00000FFC -#define DG1_GSC_HECI2_BASE 0x259000 -#define PVC_GSC_HECI2_BASE 0x285000 -#define DG2_GSC_HECI2_BASE 0x374000 - static void heci_gsc_irq_mask(struct irq_data *d) { /* generic irq handling */ diff --git a/drivers/gpu/drm/xe/xe_nvm.c b/drivers/gpu/drm/xe/xe_nvm.c index 16383cbc9e1d..4d16fe42315d 100644 --- a/drivers/gpu/drm/xe/xe_nvm.c +++ b/drivers/gpu/drm/xe/xe_nvm.c @@ -5,8 +5,11 @@ #include #include +#include "xe_device.h" #include "xe_device_types.h" +#include "xe_mmio.h" #include "xe_nvm.h" +#include "regs/xe_gsc_regs.h" #include "xe_sriov.h" #define GEN12_GUNIT_NVM_BASE 0x00102040 @@ -24,6 +27,33 @@ static void xe_nvm_release_dev(struct device *dev) { } +static bool xe_nvm_writeable_override(struct xe_device *xe) +{ + struct xe_gt *gt = xe_root_mmio_gt(xe); + resource_size_t base; + bool writeable_override; + + if (xe->info.platform == XE_BATTLEMAGE) { + base = DG2_GSC_HECI2_BASE; + } else if (xe->info.platform == XE_PVC) { + base = PVC_GSC_HECI2_BASE; + } else if (xe->info.platform == XE_DG2) { + base = DG2_GSC_HECI2_BASE; + } else if (xe->info.platform == XE_DG1) { + base = DG1_GSC_HECI2_BASE; + } else { + drm_err(&xe->drm, "Unknown platform\n"); + return true; + } + + writeable_override = + !(xe_mmio_read32(>->mmio, HECI_FWSTS2(base)) & + HECI_FW_STATUS_2_NVM_ACCESS_MODE); + if (writeable_override) + drm_info(&xe->drm, "NVM access overridden by jumper\n"); + return writeable_override; +} + void xe_nvm_init(struct xe_device *xe) { struct pci_dev *pdev = to_pci_dev(xe->drm.dev); @@ -48,7 +78,7 @@ void xe_nvm_init(struct xe_device *xe) nvm = xe->nvm; - nvm->writeable_override = false; + nvm->writeable_override = xe_nvm_writeable_override(xe); nvm->bar.parent = &pdev->resource[0]; nvm->bar.start = GEN12_GUNIT_NVM_BASE + pdev->resource[0].start; nvm->bar.end = nvm->bar.start + GEN12_GUNIT_NVM_SIZE - 1;