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 C807934EEF0; Tue, 16 Dec 2025 12:13:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765887213; cv=none; b=uc0r18hxLxCEpqh7SlS92Gyjm8RFYaDgXxnu7zgj5CImEvg1D27V9gbwDf3E3V+/nZzGc8BHXbAIITg6dBxXNjG4XBga7rupquYmZfEuA+0GHKdgC02pvspiMJ66iA1UF6KYNYOOttb9z96qRqZwgJ9JZwbOJM/qJNtZ0nXgXik= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765887213; c=relaxed/simple; bh=8bigxs6OLyZ3Mb+IJbvCXshuYhPPs5o9O84ImqFnGxw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=RaHKoLzDvm8dkaOJ91SLSNdprbTE2KEu7bIKWnyWhGXh0UdbB72nRQyLOjfuzwAJIWYVhUzC4jD/cUTF+Ui8k69Z3tjCSfRQ8XqO77l+RBHqPEvvcOsVn7oCLSNn8pp00FjGABeqz0FK8nhBwETWj513yIjwMshM4Pm4pSwQWnQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=OD+Ddi6o; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="OD+Ddi6o" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4785CC4CEF5; Tue, 16 Dec 2025 12:13:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1765887213; bh=8bigxs6OLyZ3Mb+IJbvCXshuYhPPs5o9O84ImqFnGxw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OD+Ddi6o0bMlrs6u2xRl/2lGvxwlhnnNTMIwDaIvd7Tre4+vk68oVX30b/MJbeANj Owwp8Xcjjf5flR7PFLOTZ91yHCKVViJPOkz3wJYtqDA0PvQ0rYMqFxWnz1V9GhRd3y J4y1PhvqqzEnczfwvoXCuE01MN6owdOh99aRxhN0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Prike Liang , Alex Deucher , Sasha Levin Subject: [PATCH 6.18 134/614] drm/amdgpu/userq: fix SDMA and compute validation Date: Tue, 16 Dec 2025 12:08:21 +0100 Message-ID: <20251216111406.191486876@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251216111401.280873349@linuxfoundation.org> References: <20251216111401.280873349@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher [ Upstream commit a0559012a18a5a6ad87516e982892765a403b8ab ] The CSA and EOP buffers have different alignement requirements. Hardcode them for now as a bug fix. A proper query will be added in a subsequent patch. v2: verify gfx shadow helper callback (Prike) Fixes: 9e46b8bb0539 ("drm/amdgpu: validate userq buffer virtual address and size") Reviewed-by: Prike Liang Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/mes_userqueue.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c b/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c index 5c63480dda9c4..f5aa83ff57f35 100644 --- a/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c +++ b/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c @@ -254,7 +254,6 @@ static int mes_userq_mqd_create(struct amdgpu_userq_mgr *uq_mgr, struct amdgpu_mqd *mqd_hw_default = &adev->mqds[queue->queue_type]; struct drm_amdgpu_userq_in *mqd_user = args_in; struct amdgpu_mqd_prop *userq_props; - struct amdgpu_gfx_shadow_info shadow_info; int r; /* Structure to initialize MQD for userqueue using generic MQD init function */ @@ -280,8 +279,6 @@ static int mes_userq_mqd_create(struct amdgpu_userq_mgr *uq_mgr, userq_props->doorbell_index = queue->doorbell_index; userq_props->fence_address = queue->fence_drv->gpu_addr; - if (adev->gfx.funcs->get_gfx_shadow_info) - adev->gfx.funcs->get_gfx_shadow_info(adev, &shadow_info, true); if (queue->queue_type == AMDGPU_HW_IP_COMPUTE) { struct drm_amdgpu_userq_mqd_compute_gfx11 *compute_mqd; @@ -299,7 +296,7 @@ static int mes_userq_mqd_create(struct amdgpu_userq_mgr *uq_mgr, } r = amdgpu_userq_input_va_validate(queue, compute_mqd->eop_va, - max_t(u32, PAGE_SIZE, AMDGPU_GPU_PAGE_SIZE)); + 2048); if (r) goto free_mqd; @@ -312,6 +309,14 @@ static int mes_userq_mqd_create(struct amdgpu_userq_mgr *uq_mgr, kfree(compute_mqd); } else if (queue->queue_type == AMDGPU_HW_IP_GFX) { struct drm_amdgpu_userq_mqd_gfx11 *mqd_gfx_v11; + struct amdgpu_gfx_shadow_info shadow_info; + + if (adev->gfx.funcs->get_gfx_shadow_info) { + adev->gfx.funcs->get_gfx_shadow_info(adev, &shadow_info, true); + } else { + r = -EINVAL; + goto free_mqd; + } if (mqd_user->mqd_size != sizeof(*mqd_gfx_v11) || !mqd_user->mqd) { DRM_ERROR("Invalid GFX MQD\n"); @@ -335,6 +340,10 @@ static int mes_userq_mqd_create(struct amdgpu_userq_mgr *uq_mgr, shadow_info.shadow_size); if (r) goto free_mqd; + r = amdgpu_userq_input_va_validate(queue, mqd_gfx_v11->csa_va, + shadow_info.csa_size); + if (r) + goto free_mqd; kfree(mqd_gfx_v11); } else if (queue->queue_type == AMDGPU_HW_IP_DMA) { @@ -353,7 +362,7 @@ static int mes_userq_mqd_create(struct amdgpu_userq_mgr *uq_mgr, goto free_mqd; } r = amdgpu_userq_input_va_validate(queue, mqd_sdma_v11->csa_va, - shadow_info.csa_size); + 32); if (r) goto free_mqd; -- 2.51.0