From patchwork Mon Nov 7 11:13:45 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiao Guangrong X-Patchwork-Id: 9414883 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 078B76022E for ; Mon, 7 Nov 2016 11:46:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EAAA328D4E for ; Mon, 7 Nov 2016 11:46:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DDC7528D4B; Mon, 7 Nov 2016 11:46:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 0E7C128D4B for ; Mon, 7 Nov 2016 11:46:38 +0000 (UTC) Received: from localhost ([::1]:53223 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c3iNp-0004gT-C5 for patchwork-qemu-devel@patchwork.kernel.org; Mon, 07 Nov 2016 06:46:37 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44699) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c3i7I-0007So-1x for qemu-devel@nongnu.org; Mon, 07 Nov 2016 06:29:33 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c3i7G-0001Vp-QL for qemu-devel@nongnu.org; Mon, 07 Nov 2016 06:29:32 -0500 Received: from mga11.intel.com ([192.55.52.93]:55637) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1c3i7G-0001Jt-Go for qemu-devel@nongnu.org; Mon, 07 Nov 2016 06:29:30 -0500 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP; 07 Nov 2016 03:29:30 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos; i="5.31,606,1473145200"; d="scan'208"; a="1065006965" Received: from xiaoreal1.sh.intel.com (HELO xiaoreal1.sh.intel.com.sh.intel.com) ([10.239.48.133]) by fmsmga001.fm.intel.com with ESMTP; 07 Nov 2016 03:29:27 -0800 From: Xiao Guangrong To: pbonzini@redhat.com, imammedo@redhat.com Date: Mon, 7 Nov 2016 19:13:45 +0800 Message-Id: <1478517229-140028-11-git-send-email-guangrong.xiao@linux.intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1478517229-140028-1-git-send-email-guangrong.xiao@linux.intel.com> References: <1478517229-140028-1-git-send-email-guangrong.xiao@linux.intel.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 192.55.52.93 Subject: [Qemu-devel] [PATCH 10/14] nvdimm acpi: define DSM return codes X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Xiao Guangrong , ehabkost@redhat.com, kvm@vger.kernel.org, mst@redhat.com, gleb@kernel.org, mtosatti@redhat.com, qemu-devel@nongnu.org, stefanha@redhat.com, dan.j.williams@intel.com, rth@twiddle.net Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP and use these codes to refine the code Suggested-by: Igor Mammedov Signed-off-by: Xiao Guangrong Reviewed-by: Stefan Hajnoczi Reviewed-by: Igor Mammedov --- hw/acpi/nvdimm.c | 46 +++++++++++++++++++++++++++------------------- 1 file changed, 27 insertions(+), 19 deletions(-) diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c index 7733f14..c7e7744 100644 --- a/hw/acpi/nvdimm.c +++ b/hw/acpi/nvdimm.c @@ -514,7 +514,13 @@ nvdimm_dsm_no_payload(uint32_t func_ret_status, hwaddr dsm_mem_addr) cpu_physical_memory_write(dsm_mem_addr, &out, sizeof(out)); } -#define NVDIMM_QEMU_RSVD_HANDLE_ROOT 0x10000 +#define NVDIMM_DSM_RET_STATUS_SUCCESS 0 /* Success */ +#define NVDIMM_DSM_RET_STATUS_UNSUPPORT 1 /* Not Supported */ +#define NVDIMM_DSM_RET_STATUS_NOMEMDEV 2 /* Non-Existing Memory Device */ +#define NVDIMM_DSM_RET_STATUS_INVALID 3 /* Invalid Input Parameters */ +#define NVDIMM_DSM_RET_STATUS_FIT_CHANGED 0x100 /* FIT Changed */ + +#define NVDIMM_QEMU_RSVD_HANDLE_ROOT 0x10000 /* Read FIT data, defined in docs/specs/acpi_nvdimm.txt. */ static void nvdimm_dsm_func_read_fit(AcpiNVDIMMState *state, NvdimmDsmIn *in, @@ -536,7 +542,7 @@ static void nvdimm_dsm_func_read_fit(AcpiNVDIMMState *state, NvdimmDsmIn *in, read_fit->offset, fit->len, fit_buf->dirty ? "Yes" : "No"); if (read_fit->offset > fit->len) { - func_ret_status = 3 /* Invalid Input Parameters */; + func_ret_status = NVDIMM_DSM_RET_STATUS_INVALID; goto exit; } @@ -544,11 +550,11 @@ static void nvdimm_dsm_func_read_fit(AcpiNVDIMMState *state, NvdimmDsmIn *in, if (!read_fit->offset) { fit_buf->dirty = false; } else if (fit_buf->dirty) { /* FIT has been changed during RFIT. */ - func_ret_status = 0x100 /* fit changed */; + func_ret_status = NVDIMM_DSM_RET_STATUS_FIT_CHANGED; goto exit; } - func_ret_status = 0 /* Success */; + func_ret_status = NVDIMM_DSM_RET_STATUS_SUCCESS; read_len = MIN(fit->len - read_fit->offset, 4096 - sizeof(NvdimmFuncReadFITOut)); @@ -577,7 +583,7 @@ static void nvdimm_dsm_reserved_root(AcpiNVDIMMState *state, NvdimmDsmIn *in, return; } - nvdimm_dsm_no_payload(1 /* Not Supported */, dsm_mem_addr); + nvdimm_dsm_no_payload(NVDIMM_DSM_RET_STATUS_UNSUPPORT, dsm_mem_addr); } static void nvdimm_dsm_root(NvdimmDsmIn *in, hwaddr dsm_mem_addr) @@ -593,7 +599,7 @@ static void nvdimm_dsm_root(NvdimmDsmIn *in, hwaddr dsm_mem_addr) } /* No function except function 0 is supported yet. */ - nvdimm_dsm_no_payload(1 /* Not Supported */, dsm_mem_addr); + nvdimm_dsm_no_payload(NVDIMM_DSM_RET_STATUS_UNSUPPORT, dsm_mem_addr); } /* @@ -639,7 +645,7 @@ static void nvdimm_dsm_label_size(NVDIMMDevice *nvdimm, hwaddr dsm_mem_addr) nvdimm_debug("label_size %#x, max_xfer %#x.\n", label_size, mxfer); - label_size_out.func_ret_status = cpu_to_le32(0 /* Success */); + label_size_out.func_ret_status = cpu_to_le32(NVDIMM_DSM_RET_STATUS_SUCCESS); label_size_out.label_size = cpu_to_le32(label_size); label_size_out.max_xfer = cpu_to_le32(mxfer); @@ -650,7 +656,7 @@ static void nvdimm_dsm_label_size(NVDIMMDevice *nvdimm, hwaddr dsm_mem_addr) static uint32_t nvdimm_rw_label_data_check(NVDIMMDevice *nvdimm, uint32_t offset, uint32_t length) { - uint32_t ret = 3 /* Invalid Input Parameters */; + uint32_t ret = NVDIMM_DSM_RET_STATUS_INVALID; if (offset + length < offset) { nvdimm_debug("offset %#x + length %#x is overflow.\n", offset, @@ -670,7 +676,7 @@ static uint32_t nvdimm_rw_label_data_check(NVDIMMDevice *nvdimm, return ret; } - return 0 /* Success */; + return NVDIMM_DSM_RET_STATUS_SUCCESS; } /* @@ -694,7 +700,7 @@ static void nvdimm_dsm_get_label_data(NVDIMMDevice *nvdimm, NvdimmDsmIn *in, status = nvdimm_rw_label_data_check(nvdimm, get_label_data->offset, get_label_data->length); - if (status != 0 /* Success */) { + if (status != NVDIMM_DSM_RET_STATUS_SUCCESS) { nvdimm_dsm_no_payload(status, dsm_mem_addr); return; } @@ -704,7 +710,8 @@ static void nvdimm_dsm_get_label_data(NVDIMMDevice *nvdimm, NvdimmDsmIn *in, get_label_data_out = g_malloc(size); get_label_data_out->len = cpu_to_le32(size); - get_label_data_out->func_ret_status = cpu_to_le32(0 /* Success */); + get_label_data_out->func_ret_status = + cpu_to_le32(NVDIMM_DSM_RET_STATUS_SUCCESS); nvc->read_label_data(nvdimm, get_label_data_out->out_buf, get_label_data->length, get_label_data->offset); @@ -732,7 +739,7 @@ static void nvdimm_dsm_set_label_data(NVDIMMDevice *nvdimm, NvdimmDsmIn *in, status = nvdimm_rw_label_data_check(nvdimm, set_label_data->offset, set_label_data->length); - if (status != 0 /* Success */) { + if (status != NVDIMM_DSM_RET_STATUS_SUCCESS) { nvdimm_dsm_no_payload(status, dsm_mem_addr); return; } @@ -742,7 +749,7 @@ static void nvdimm_dsm_set_label_data(NVDIMMDevice *nvdimm, NvdimmDsmIn *in, nvc->write_label_data(nvdimm, set_label_data->in_buf, set_label_data->length, set_label_data->offset); - nvdimm_dsm_no_payload(0 /* Success */, dsm_mem_addr); + nvdimm_dsm_no_payload(NVDIMM_DSM_RET_STATUS_SUCCESS, dsm_mem_addr); } static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr) @@ -766,7 +773,7 @@ static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr) } if (!nvdimm) { - nvdimm_dsm_no_payload(2 /* Non-Existing Memory Device */, + nvdimm_dsm_no_payload(NVDIMM_DSM_RET_STATUS_NOMEMDEV, dsm_mem_addr); return; } @@ -793,7 +800,7 @@ static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr) break; } - nvdimm_dsm_no_payload(1 /* Not Supported */, dsm_mem_addr); + nvdimm_dsm_no_payload(NVDIMM_DSM_RET_STATUS_UNSUPPORT, dsm_mem_addr); } static uint64_t @@ -830,7 +837,7 @@ nvdimm_dsm_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) if (in->revision != 0x1 /* Currently we only support DSM Spec Rev1. */) { nvdimm_debug("Revision %#x is not supported, expect %#x.\n", in->revision, 0x1); - nvdimm_dsm_no_payload(1 /* Not Supported */, dsm_mem_addr); + nvdimm_dsm_no_payload(NVDIMM_DSM_RET_STATUS_UNSUPPORT, dsm_mem_addr); goto exit; } @@ -1018,7 +1025,7 @@ static void nvdimm_build_common_dsm(Aml *dev) aml_append(unsupport, ifctx); /* No function is supported yet. */ - byte_list[0] = 1 /* Not Supported */; + byte_list[0] = NVDIMM_DSM_RET_STATUS_UNSUPPORT; aml_append(unsupport, aml_return(aml_buffer(1, byte_list))); aml_append(method, unsupport); @@ -1119,7 +1126,8 @@ static void nvdimm_build_fit(Aml *dev) aml_name(NVDIMM_DSM_RFIT_STATUS))); /* if something is wrong during _DSM. */ - ifcond = aml_equal(aml_int(0 /* Success */), aml_name("STAU")); + ifcond = aml_equal(aml_int(NVDIMM_DSM_RET_STATUS_SUCCESS), + aml_name("STAU")); ifctx = aml_if(aml_lnot(ifcond)); aml_append(ifctx, aml_return(aml_buffer(0, NULL))); aml_append(method, ifctx); @@ -1156,7 +1164,7 @@ static void nvdimm_build_fit(Aml *dev) * again. */ ifctx = aml_if(aml_equal(aml_name(NVDIMM_DSM_RFIT_STATUS), - aml_int(0x100 /* fit changed */))); + aml_int(NVDIMM_DSM_RET_STATUS_FIT_CHANGED))); aml_append(ifctx, aml_store(aml_buffer(0, NULL), fit)); aml_append(ifctx, aml_store(aml_int(0), offset)); aml_append(whilectx, ifctx);