From patchwork Fri Sep 6 02:19:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bibo Mao X-Patchwork-Id: 13793140 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 C3A7DCE7AA5 for ; Fri, 6 Sep 2024 02:20:25 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1smOZp-000508-Kf; Thu, 05 Sep 2024 22:19:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1smOZl-0004yZ-K5 for qemu-devel@nongnu.org; Thu, 05 Sep 2024 22:19:54 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1smOZj-0007I0-4f for qemu-devel@nongnu.org; Thu, 05 Sep 2024 22:19:53 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8DxXpnBZtpmdwUsAA--.47748S3; Fri, 06 Sep 2024 10:19:45 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMDx_0e_ZtpmK54FAA--.4430S3; Fri, 06 Sep 2024 10:19:44 +0800 (CST) From: Bibo Mao To: "Michael S . Tsirkin" , Igor Mammedov , Song Gao Cc: Ani Sinha , Jiaxun Yang , "Jason A . Donenfeld" , =?utf-8?q?Thomas_Wei=C3=9Fschuh?= , qemu-devel@nongnu.org Subject: [PATCH 1/2] acpi: ged: Add macro for acpi ged sleep register Date: Fri, 6 Sep 2024 10:19:42 +0800 Message-Id: <20240906021943.150494-2-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20240906021943.150494-1-maobibo@loongson.cn> References: <20240906021943.150494-1-maobibo@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: qMiowMDx_0e_ZtpmK54FAA--.4430S3 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass client-ip=114.242.206.163; envelope-from=maobibo@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Macro definition is added for acpi ged sleep register, so that ged emulation driver can use this, also it can be used in FDT table if ged is exposed with FDT table. Signed-off-by: Bibo Mao --- hw/acpi/generic_event_device.c | 6 +++--- include/hw/acpi/generic_event_device.h | 3 +++ 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c index 15b4c3ebbf..10a338877c 100644 --- a/hw/acpi/generic_event_device.c +++ b/hw/acpi/generic_event_device.c @@ -201,9 +201,9 @@ static void ged_regs_write(void *opaque, hwaddr addr, uint64_t data, switch (addr) { case ACPI_GED_REG_SLEEP_CTL: - slp_typ = (data >> 2) & 0x07; - slp_en = (data >> 5) & 0x01; - if (slp_en && slp_typ == 5) { + slp_typ = (data & ACPI_GED_SLP_TYP_MASK) >> ACPI_GED_SLP_TYP_SHIFT; + slp_en = !!(data & ACPI_GED_SLP_ENABLE); + if (slp_en && slp_typ == ACPI_GED_SLP_TYP_S5) { qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); } return; diff --git a/include/hw/acpi/generic_event_device.h b/include/hw/acpi/generic_event_device.h index 40af3550b5..526fea6efe 100644 --- a/include/hw/acpi/generic_event_device.h +++ b/include/hw/acpi/generic_event_device.h @@ -82,7 +82,10 @@ OBJECT_DECLARE_SIMPLE_TYPE(AcpiGedState, ACPI_GED) #define ACPI_GED_RESET_VALUE 0x42 /* ACPI_GED_REG_SLEEP_CTL.SLP_TYP value for S5 (aka poweroff) */ +#define ACPI_GED_SLP_TYP_SHIFT 0x02 #define ACPI_GED_SLP_TYP_S5 0x05 +#define ACPI_GED_SLP_TYP_MASK 0x1C +#define ACPI_GED_SLP_ENABLE 0x20 #define GED_DEVICE "GED" #define AML_GED_EVT_REG "EREG" From patchwork Fri Sep 6 02:19:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bibo Mao X-Patchwork-Id: 13793141 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 D8569CE7AA8 for ; Fri, 6 Sep 2024 02:20:25 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1smOZs-0005Bv-JD; Thu, 05 Sep 2024 22:20:00 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1smOZl-0004yb-US for qemu-devel@nongnu.org; Thu, 05 Sep 2024 22:19:54 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1smOZj-0007I1-5E for qemu-devel@nongnu.org; Thu, 05 Sep 2024 22:19:53 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8BxHJvBZtpmfQUsAA--.48118S3; Fri, 06 Sep 2024 10:19:45 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMDx_0e_ZtpmK54FAA--.4430S4; Fri, 06 Sep 2024 10:19:45 +0800 (CST) From: Bibo Mao To: "Michael S . Tsirkin" , Igor Mammedov , Song Gao Cc: Ani Sinha , Jiaxun Yang , "Jason A . Donenfeld" , =?utf-8?q?Thomas_Wei=C3=9Fschuh?= , qemu-devel@nongnu.org Subject: [PATCH 2/2] hw/loongarch/virt: Add FDT table support with acpi ged pm register Date: Fri, 6 Sep 2024 10:19:43 +0800 Message-Id: <20240906021943.150494-3-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20240906021943.150494-1-maobibo@loongson.cn> References: <20240906021943.150494-1-maobibo@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: qMiowMDx_0e_ZtpmK54FAA--.4430S4 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass client-ip=114.242.206.163; envelope-from=maobibo@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org ACPI ged is used for power management on LoongArch virt platform, in general it is parsed from acpi table. However if system boot directly from elf kernel, no UEFI bios is provided and acpi table cannot be used also. Here acpi ged pm register is exposed with FDT table, it is compatbile with syscon method in FDT table, only that acpi ged pm register is accessed with 8-bit mode, rather in 32-bit mode. Signed-off-by: Bibo Mao --- hw/loongarch/virt.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 29040422aa..8283130ba3 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -279,6 +279,44 @@ static void fdt_add_rtc_node(LoongArchVirtMachineState *lvms, g_free(nodename); } +static void fdt_add_ged_reset(LoongArchVirtMachineState *lvms) +{ + char *name; + uint32_t ged_handle; + MachineState *ms = MACHINE(lvms); + hwaddr base = VIRT_GED_REG_ADDR; + hwaddr size = ACPI_GED_REG_COUNT; + + ged_handle = qemu_fdt_alloc_phandle(ms->fdt); + name = g_strdup_printf("/ged@%" PRIx64, base); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon"); + qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, base, 0x0, size); + /* 8 bit registers */ + qemu_fdt_setprop_cell(ms->fdt, name, "reg-shift", 0); + qemu_fdt_setprop_cell(ms->fdt, name, "reg-io-width", 1); + qemu_fdt_setprop_cell(ms->fdt, name, "phandle", ged_handle); + ged_handle = qemu_fdt_get_phandle(ms->fdt, name); + g_free(name); + + name = g_strdup_printf("/reboot"); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon-reboot"); + qemu_fdt_setprop_cell(ms->fdt, name, "regmap", ged_handle); + qemu_fdt_setprop_cell(ms->fdt, name, "offset", ACPI_GED_REG_RESET); + qemu_fdt_setprop_cell(ms->fdt, name, "value", ACPI_GED_RESET_VALUE); + g_free(name); + + name = g_strdup_printf("/poweroff"); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon-poweroff"); + qemu_fdt_setprop_cell(ms->fdt, name, "regmap", ged_handle); + qemu_fdt_setprop_cell(ms->fdt, name, "offset", ACPI_GED_REG_SLEEP_CTL); + qemu_fdt_setprop_cell(ms->fdt, name, "value", ACPI_GED_SLP_ENABLE | + (ACPI_GED_SLP_TYP_S5 << ACPI_GED_SLP_TYP_SHIFT)); + g_free(name); +} + static void fdt_add_uart_node(LoongArchVirtMachineState *lvms, uint32_t *pch_pic_phandle) { @@ -724,6 +762,7 @@ static void virt_devices_init(DeviceState *pch_pic, qdev_get_gpio_in(pch_pic, VIRT_RTC_IRQ - VIRT_GSI_BASE)); fdt_add_rtc_node(lvms, pch_pic_phandle); + fdt_add_ged_reset(lvms); /* acpi ged */ lvms->acpi_ged = create_acpi_ged(pch_pic, lvms);