From patchwork Mon Mar 11 15:11:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sunil Khatri X-Patchwork-Id: 13588942 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 34599C54E58 for ; Mon, 11 Mar 2024 15:11:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 83D6F112AF1; Mon, 11 Mar 2024 15:11:24 +0000 (UTC) Received: from rtg-sunil-navi33.amd.com (unknown [165.204.156.251]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8B272112AF1; Mon, 11 Mar 2024 15:11:22 +0000 (UTC) Received: from rtg-sunil-navi33.amd.com (localhost [127.0.0.1]) by rtg-sunil-navi33.amd.com (8.15.2/8.15.2/Debian-22ubuntu3) with ESMTP id 42BFBB8s005368; Mon, 11 Mar 2024 20:41:11 +0530 Received: (from sunil@localhost) by rtg-sunil-navi33.amd.com (8.15.2/8.15.2/Submit) id 42BFBB3J005367; Mon, 11 Mar 2024 20:41:11 +0530 From: Sunil Khatri To: Alex Deucher , =?utf-8?q?Christian_K=C3=B6nig?= , Shashank Sharma Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Sunil Khatri Subject: [PATCH v2] drm/amdgpu: add ring buffer information in devcoredump Date: Mon, 11 Mar 2024 20:41:09 +0530 Message-Id: <20240311151109.5336-1-sunil.khatri@amd.com> X-Mailer: git-send-email 2.34.1 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" Add relevant ringbuffer information such as rptr, wptr,rb mask, ring name, ring size and also the rings content for each ring on a gpu reset. Signed-off-by: Sunil Khatri --- drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c index 6d059f853adc..a0dbccad2f53 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c @@ -215,6 +215,27 @@ amdgpu_devcoredump_read(char *buffer, loff_t offset, size_t count, fault_info->status); } + drm_printf(&p, "Ring buffer information\n"); + for (int i = 0; i < coredump->adev->num_rings; i++) { + int j = 0; + struct amdgpu_ring *ring = coredump->adev->rings[i]; + + drm_printf(&p, "ring name: %s\n", ring->name); + drm_printf(&p, "Rptr: 0x%llx Wptr: 0x%llx RB mask: %x\n", + amdgpu_ring_get_rptr(ring), + amdgpu_ring_get_wptr(ring), + ring->buf_mask); + drm_printf(&p, "Ring size in dwords: %d\n", + ring->ring_size / 4); + drm_printf(&p, "Ring contents\n"); + drm_printf(&p, "Offset \t Value\n"); + + while (j < ring->ring_size) { + drm_printf(&p, "0x%x \t 0x%x\n", j, ring->ring[j/4]); + j += 4; + } + } + if (coredump->reset_vram_lost) drm_printf(&p, "VRAM is lost due to GPU reset!\n"); if (coredump->adev->reset_info.num_regs) {