From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 2276F31A89 for ; Wed, 20 Sep 2023 12:30:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9A992C433C8; Wed, 20 Sep 2023 12:30:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1695213003; bh=IMz9QKHvg7++5/Jfq1xdxfb0KptErvhtZpx9eNSB5DU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fe9/Zmm9DC8nD+dQnXaVQ+gSz5SxMrxDul1KgBQtOX1bmz7UPFd/mr6dwFoayiQob 8w0IQUUATQItFMzl2HrnPApHdasWZhs3zJUKp3YJKR1GhMNoxQ/jSq0YfMl7G1XPXV rmTVXoqUgdZg/tzliuwg3hYGRuOGM0Mrsp2yKims= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Lucas Stach , Christian Gmeiner , Sasha Levin Subject: [PATCH 5.4 097/367] drm/etnaviv: fix dumping of active MMU context Date: Wed, 20 Sep 2023 13:27:54 +0200 Message-ID: <20230920112901.064954914@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230920112858.471730572@linuxfoundation.org> References: <20230920112858.471730572@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Lucas Stach [ Upstream commit 20faf2005ec85fa1a6acc9a74ff27de667f90576 ] gpu->mmu_context is the MMU context of the last job in the HW queue, which isn't necessarily the same as the context from the bad job. Dump the MMU context from the scheduler determined bad submit to make it work as intended. Fixes: 17e4660ae3d7 ("drm/etnaviv: implement per-process address spaces on MMUv2") Signed-off-by: Lucas Stach Reviewed-by: Christian Gmeiner Signed-off-by: Sasha Levin --- drivers/gpu/drm/etnaviv/etnaviv_dump.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_dump.c b/drivers/gpu/drm/etnaviv/etnaviv_dump.c index 648cf02073092..67901f4586a3f 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_dump.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_dump.c @@ -125,9 +125,9 @@ void etnaviv_core_dump(struct etnaviv_gem_submit *submit) return; etnaviv_dump_core = false; - mutex_lock(&gpu->mmu_context->lock); + mutex_lock(&submit->mmu_context->lock); - mmu_size = etnaviv_iommu_dump_size(gpu->mmu_context); + mmu_size = etnaviv_iommu_dump_size(submit->mmu_context); /* We always dump registers, mmu, ring, hanging cmdbuf and end marker */ n_obj = 5; @@ -157,7 +157,7 @@ void etnaviv_core_dump(struct etnaviv_gem_submit *submit) iter.start = __vmalloc(file_size, GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY, PAGE_KERNEL); if (!iter.start) { - mutex_unlock(&gpu->mmu_context->lock); + mutex_unlock(&submit->mmu_context->lock); dev_warn(gpu->dev, "failed to allocate devcoredump file\n"); return; } @@ -169,18 +169,18 @@ void etnaviv_core_dump(struct etnaviv_gem_submit *submit) memset(iter.hdr, 0, iter.data - iter.start); etnaviv_core_dump_registers(&iter, gpu); - etnaviv_core_dump_mmu(&iter, gpu->mmu_context, mmu_size); + etnaviv_core_dump_mmu(&iter, submit->mmu_context, mmu_size); etnaviv_core_dump_mem(&iter, ETDUMP_BUF_RING, gpu->buffer.vaddr, gpu->buffer.size, etnaviv_cmdbuf_get_va(&gpu->buffer, - &gpu->mmu_context->cmdbuf_mapping)); + &submit->mmu_context->cmdbuf_mapping)); etnaviv_core_dump_mem(&iter, ETDUMP_BUF_CMD, submit->cmdbuf.vaddr, submit->cmdbuf.size, etnaviv_cmdbuf_get_va(&submit->cmdbuf, - &gpu->mmu_context->cmdbuf_mapping)); + &submit->mmu_context->cmdbuf_mapping)); - mutex_unlock(&gpu->mmu_context->lock); + mutex_unlock(&submit->mmu_context->lock); /* Reserve space for the bomap */ if (n_bomap_pages) { -- 2.40.1