From patchwork Thu Jul 18 13:33:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= X-Patchwork-Id: 13736526 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 2C25CC3DA49 for ; Thu, 18 Jul 2024 13:35:01 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sURHX-0002pM-8w; Thu, 18 Jul 2024 09:34:51 -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 1sURHM-00025Z-PU for qemu-devel@nongnu.org; Thu, 18 Jul 2024 09:34:41 -0400 Received: from mail-wr1-x429.google.com ([2a00:1450:4864:20::429]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sURHK-00006y-7m for qemu-devel@nongnu.org; Thu, 18 Jul 2024 09:34:40 -0400 Received: by mail-wr1-x429.google.com with SMTP id ffacd0b85a97d-3684e8220f9so407160f8f.1 for ; Thu, 18 Jul 2024 06:34:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1721309676; x=1721914476; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=hkEk/NJ7l23oCST4OhgnNgMF481p6nwLpHkqastMauo=; b=pb1OimMSGKt5COTraNTh81IhSVx18fvHrVLYtgRacpTHmrgYyN9rOl3LQp74HRvtvO AIGpUb5sqYhdSrCdirAbZqvpeLjU4JU8gee0AvEUQZ9A7w/WU7Qr3wkQ6qU/JlHX0eTp Y9eRM+IdaU7N+f43ivCrWrxyDxfc8016hHr3ld3R1DRVjABHZMUFTeeyk3lRlWtya1ih T94oAXK2BFnFCB0RjVQIy4/tzH93sv3/K6ajhyB8YZiwGfJcGCbB599A8e+nkX6HBtWZ +FFJPpYx39m+mizSze5e1KmMV8YB/pA+wO3GUaeNlhbwG7Hz/E5q/kZa36IDdczxDJul T0wA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721309676; x=1721914476; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=hkEk/NJ7l23oCST4OhgnNgMF481p6nwLpHkqastMauo=; b=GvBuEEmGDDwWLRcfpezOMq4YI3MWZ8zdP2RMnxvgRGki2LmSAtCrKzcS7HH/f7Lg8/ 8Rzovtgp7HkBXN+HxDC93q3stWA1fUy2vUb8L+5QDNYx0/I7QnSkkZHt0FWnjyQKoy2n uSnz2rG0WG9AKTs3vdASNEPW/3OwR0TUpVSdCndHy/DFS9CIXSp0vO3Yi1RRa0S8Jmua gYVqyzq+yrSb6HHlwTobVbxwWTTP0jb5Vtpu1focWxMkhPrhyT3vIyr/WDCDGe+zanjZ EAUWuL4qI6yWwBocmm+oTKWGWZOI17D08KcKmth8Ar49Z1kM4CI/jGyEUz30TKSry7OK foFQ== X-Forwarded-Encrypted: i=1; AJvYcCXb8W7fFlmGWMO/JuDJjjZcQJ5o/WHIvQ7DCoihqQ48j6xSHTiA7X8T35IlpeoqCJ7jFhmL9k/GaKwY1FgJt0xRagrpjbE= X-Gm-Message-State: AOJu0YwXMPydUeharceOVpz6wZEuLzbfBdCYyQk7VniaqYyObueEQFW+ CWBH8A+TUFhvF9qsbfVNG5wGlFGR8gfEhYrKFdfJJRSuRLPL5OgTXb62xSIzLNI= X-Google-Smtp-Source: AGHT+IFCKsWQTeLAg2QckJSM7kcjoMfsdDFA1CEyKkH0vJKVQTJ0ju88gKSU/Z+q5mtlUt3TrUXIvw== X-Received: by 2002:adf:e253:0:b0:368:4467:c23e with SMTP id ffacd0b85a97d-3684b3fa6d5mr1530885f8f.30.1721309676544; Thu, 18 Jul 2024 06:34:36 -0700 (PDT) Received: from localhost.localdomain ([176.176.173.113]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-427d2b18420sm13657555e9.19.2024.07.18.06.34.34 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Thu, 18 Jul 2024 06:34:36 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: Bibo Mao , qemu-devel@nongnu.org, Jiaxun Yang Cc: Song Gao , Paolo Bonzini , Huacai Chen , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Xiaojuan Yang , Xianglai Li Subject: [PATCH v5 14/19] hw/intc/loongson_ipi: Move common code to loongson_ipi_common.c Date: Thu, 18 Jul 2024 15:33:06 +0200 Message-ID: <20240718133312.10324-15-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20240718133312.10324-1-philmd@linaro.org> References: <20240718133312.10324-1-philmd@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::429; envelope-from=philmd@linaro.org; helo=mail-wr1-x429.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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 From: Bibo Mao Move the common code from loongson_ipi.c to loongson_ipi_common.c, call parent_realize() instead of loongson_ipi_common_realize() in loongson_ipi_realize(). Signed-off-by: Bibo Mao [PMD: Extracted from bigger commit, added commit description] Co-Developed-by: Philippe Mathieu-Daudé Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Bibo Mao Tested-by: Bibo Mao Acked-by: Song Gao --- hw/intc/loongson_ipi.c | 269 +-------------------------------- hw/intc/loongson_ipi_common.c | 272 ++++++++++++++++++++++++++++++++++ 2 files changed, 274 insertions(+), 267 deletions(-) diff --git a/hw/intc/loongson_ipi.c b/hw/intc/loongson_ipi.c index a2db8bb2e2..86badb2972 100644 --- a/hw/intc/loongson_ipi.c +++ b/hw/intc/loongson_ipi.c @@ -24,56 +24,6 @@ #endif #include "trace.h" -MemTxResult loongson_ipi_core_readl(void *opaque, hwaddr addr, uint64_t *data, - unsigned size, MemTxAttrs attrs) -{ - IPICore *s = opaque; - uint64_t ret = 0; - int index = 0; - - addr &= 0xff; - switch (addr) { - case CORE_STATUS_OFF: - ret = s->status; - break; - case CORE_EN_OFF: - ret = s->en; - break; - case CORE_SET_OFF: - ret = 0; - break; - case CORE_CLEAR_OFF: - ret = 0; - break; - case CORE_BUF_20 ... CORE_BUF_38 + 4: - index = (addr - CORE_BUF_20) >> 2; - ret = s->buf[index]; - break; - default: - qemu_log_mask(LOG_UNIMP, "invalid read: %x", (uint32_t)addr); - break; - } - - trace_loongson_ipi_read(size, (uint64_t)addr, ret); - *data = ret; - return MEMTX_OK; -} - -static MemTxResult loongson_ipi_iocsr_readl(void *opaque, hwaddr addr, - uint64_t *data, - unsigned size, MemTxAttrs attrs) -{ - LoongsonIPICommonState *ipi = opaque; - IPICore *s; - - if (attrs.requester_id >= ipi->num_cpu) { - return MEMTX_DECODE_ERROR; - } - - s = &ipi->cpu[attrs.requester_id]; - return loongson_ipi_core_readl(s, addr, data, size, attrs); -} - #ifdef TARGET_LOONGARCH64 static AddressSpace *get_iocsr_as(CPUState *cpu) { @@ -92,148 +42,6 @@ static AddressSpace *get_iocsr_as(CPUState *cpu) } #endif -static MemTxResult send_ipi_data(LoongsonIPICommonState *ipi, CPUState *cpu, - uint64_t val, hwaddr addr, MemTxAttrs attrs) -{ - LoongsonIPICommonClass *licc = LOONGSON_IPI_COMMON_GET_CLASS(ipi); - int i, mask = 0, data = 0; - AddressSpace *iocsr_as = licc->get_iocsr_as(cpu); - - if (!iocsr_as) { - return MEMTX_DECODE_ERROR; - } - - /* - * bit 27-30 is mask for byte writing, - * if the mask is 0, we need not to do anything. - */ - if ((val >> 27) & 0xf) { - data = address_space_ldl_le(iocsr_as, addr, attrs, NULL); - for (i = 0; i < 4; i++) { - /* get mask for byte writing */ - if (val & (0x1 << (27 + i))) { - mask |= 0xff << (i * 8); - } - } - } - - data &= mask; - data |= (val >> 32) & ~mask; - address_space_stl_le(iocsr_as, addr, data, attrs, NULL); - - return MEMTX_OK; -} - -static MemTxResult mail_send(LoongsonIPICommonState *ipi, - uint64_t val, MemTxAttrs attrs) -{ - LoongsonIPICommonClass *licc = LOONGSON_IPI_COMMON_GET_CLASS(ipi); - uint32_t cpuid; - hwaddr addr; - CPUState *cs; - - cpuid = extract32(val, 16, 10); - cs = licc->cpu_by_arch_id(cpuid); - if (cs == NULL) { - return MEMTX_DECODE_ERROR; - } - - /* override requester_id */ - addr = SMP_IPI_MAILBOX + CORE_BUF_20 + (val & 0x1c); - attrs.requester_id = cs->cpu_index; - return send_ipi_data(ipi, cs, val, addr, attrs); -} - -static MemTxResult any_send(LoongsonIPICommonState *ipi, - uint64_t val, MemTxAttrs attrs) -{ - LoongsonIPICommonClass *licc = LOONGSON_IPI_COMMON_GET_CLASS(ipi); - uint32_t cpuid; - hwaddr addr; - CPUState *cs; - - cpuid = extract32(val, 16, 10); - cs = licc->cpu_by_arch_id(cpuid); - if (cs == NULL) { - return MEMTX_DECODE_ERROR; - } - - /* override requester_id */ - addr = val & 0xffff; - attrs.requester_id = cs->cpu_index; - return send_ipi_data(ipi, cs, val, addr, attrs); -} - -MemTxResult loongson_ipi_core_writel(void *opaque, hwaddr addr, uint64_t val, - unsigned size, MemTxAttrs attrs) -{ - IPICore *s = opaque; - LoongsonIPICommonState *ipi = s->ipi; - LoongsonIPICommonClass *licc = LOONGSON_IPI_COMMON_GET_CLASS(ipi); - int index = 0; - uint32_t cpuid; - uint8_t vector; - CPUState *cs; - - addr &= 0xff; - trace_loongson_ipi_write(size, (uint64_t)addr, val); - switch (addr) { - case CORE_STATUS_OFF: - qemu_log_mask(LOG_GUEST_ERROR, "can not be written"); - break; - case CORE_EN_OFF: - s->en = val; - break; - case CORE_SET_OFF: - s->status |= val; - if (s->status != 0 && (s->status & s->en) != 0) { - qemu_irq_raise(s->irq); - } - break; - case CORE_CLEAR_OFF: - s->status &= ~val; - if (s->status == 0 && s->en != 0) { - qemu_irq_lower(s->irq); - } - break; - case CORE_BUF_20 ... CORE_BUF_38 + 4: - index = (addr - CORE_BUF_20) >> 2; - s->buf[index] = val; - break; - case IOCSR_IPI_SEND: - cpuid = extract32(val, 16, 10); - /* IPI status vector */ - vector = extract8(val, 0, 5); - cs = licc->cpu_by_arch_id(cpuid); - if (cs == NULL || cs->cpu_index >= ipi->num_cpu) { - return MEMTX_DECODE_ERROR; - } - loongson_ipi_core_writel(&ipi->cpu[cs->cpu_index], CORE_SET_OFF, - BIT(vector), 4, attrs); - break; - default: - qemu_log_mask(LOG_UNIMP, "invalid write: %x", (uint32_t)addr); - break; - } - - return MEMTX_OK; -} - -static MemTxResult loongson_ipi_iocsr_writel(void *opaque, hwaddr addr, - uint64_t val, unsigned size, - MemTxAttrs attrs) -{ - LoongsonIPICommonState *ipi = opaque; - IPICore *s; - - if (attrs.requester_id >= ipi->num_cpu) { - return MEMTX_DECODE_ERROR; - } - - s = &ipi->cpu[attrs.requester_id]; - return loongson_ipi_core_writel(s, addr, val, size, attrs); -} - static const MemoryRegionOps loongson_ipi_core_ops = { .read_with_attrs = loongson_ipi_core_readl, .write_with_attrs = loongson_ipi_core_writel, @@ -244,88 +52,15 @@ static const MemoryRegionOps loongson_ipi_core_ops = { .endianness = DEVICE_LITTLE_ENDIAN, }; -static const MemoryRegionOps loongson_ipi_iocsr_ops = { - .read_with_attrs = loongson_ipi_iocsr_readl, - .write_with_attrs = loongson_ipi_iocsr_writel, - .impl.min_access_size = 4, - .impl.max_access_size = 4, - .valid.min_access_size = 4, - .valid.max_access_size = 8, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -/* mail send and any send only support writeq */ -static MemTxResult loongson_ipi_writeq(void *opaque, hwaddr addr, uint64_t val, - unsigned size, MemTxAttrs attrs) -{ - LoongsonIPICommonState *ipi = opaque; - MemTxResult ret = MEMTX_OK; - - addr &= 0xfff; - switch (addr) { - case MAIL_SEND_OFFSET: - ret = mail_send(ipi, val, attrs); - break; - case ANY_SEND_OFFSET: - ret = any_send(ipi, val, attrs); - break; - default: - break; - } - - return ret; -} - -static const MemoryRegionOps loongson_ipi64_ops = { - .write_with_attrs = loongson_ipi_writeq, - .impl.min_access_size = 8, - .impl.max_access_size = 8, - .valid.min_access_size = 8, - .valid.max_access_size = 8, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -static void loongson_ipi_common_realize(DeviceState *dev, Error **errp) -{ - LoongsonIPICommonState *s = LOONGSON_IPI_COMMON(dev); - SysBusDevice *sbd = SYS_BUS_DEVICE(dev); - int i; - - if (s->num_cpu == 0) { - error_setg(errp, "num-cpu must be at least 1"); - return; - } - - memory_region_init_io(&s->ipi_iocsr_mem, OBJECT(dev), - &loongson_ipi_iocsr_ops, - s, "loongson_ipi_iocsr", 0x48); - - /* loongson_ipi_iocsr performs re-entrant IO through ipi_send */ - s->ipi_iocsr_mem.disable_reentrancy_guard = true; - - sysbus_init_mmio(sbd, &s->ipi_iocsr_mem); - - memory_region_init_io(&s->ipi64_iocsr_mem, OBJECT(dev), - &loongson_ipi64_ops, - s, "loongson_ipi64_iocsr", 0x118); - sysbus_init_mmio(sbd, &s->ipi64_iocsr_mem); - - s->cpu = g_new0(IPICore, s->num_cpu); - for (i = 0; i < s->num_cpu; i++) { - s->cpu[i].ipi = s; - - qdev_init_gpio_out(dev, &s->cpu[i].irq, 1); - } -} - static void loongson_ipi_realize(DeviceState *dev, Error **errp) { LoongsonIPICommonState *sc = LOONGSON_IPI_COMMON(dev); LoongsonIPIState *s = LOONGSON_IPI(dev); + LoongsonIPIClass *lic = LOONGSON_IPI_GET_CLASS(dev); SysBusDevice *sbd = SYS_BUS_DEVICE(dev); Error *local_err = NULL; - loongson_ipi_common_realize(dev, &local_err); + lic->parent_realize(dev, &local_err); if (local_err) { error_propagate(errp, local_err); return; diff --git a/hw/intc/loongson_ipi_common.c b/hw/intc/loongson_ipi_common.c index cc49896b2d..8be7649295 100644 --- a/hw/intc/loongson_ipi_common.c +++ b/hw/intc/loongson_ipi_common.c @@ -8,8 +8,279 @@ #include "qemu/osdep.h" #include "hw/sysbus.h" #include "hw/intc/loongson_ipi_common.h" +#include "hw/irq.h" #include "hw/qdev-properties.h" +#include "qapi/error.h" +#include "qemu/log.h" #include "migration/vmstate.h" +#include "trace.h" + +MemTxResult loongson_ipi_core_readl(void *opaque, hwaddr addr, uint64_t *data, + unsigned size, MemTxAttrs attrs) +{ + IPICore *s = opaque; + uint64_t ret = 0; + int index = 0; + + addr &= 0xff; + switch (addr) { + case CORE_STATUS_OFF: + ret = s->status; + break; + case CORE_EN_OFF: + ret = s->en; + break; + case CORE_SET_OFF: + ret = 0; + break; + case CORE_CLEAR_OFF: + ret = 0; + break; + case CORE_BUF_20 ... CORE_BUF_38 + 4: + index = (addr - CORE_BUF_20) >> 2; + ret = s->buf[index]; + break; + default: + qemu_log_mask(LOG_UNIMP, "invalid read: %x", (uint32_t)addr); + break; + } + + trace_loongson_ipi_read(size, (uint64_t)addr, ret); + *data = ret; + + return MEMTX_OK; +} + +static MemTxResult loongson_ipi_iocsr_readl(void *opaque, hwaddr addr, + uint64_t *data, unsigned size, + MemTxAttrs attrs) +{ + LoongsonIPICommonState *ipi = opaque; + IPICore *s; + + if (attrs.requester_id >= ipi->num_cpu) { + return MEMTX_DECODE_ERROR; + } + + s = &ipi->cpu[attrs.requester_id]; + return loongson_ipi_core_readl(s, addr, data, size, attrs); +} + +static MemTxResult send_ipi_data(LoongsonIPICommonState *ipi, CPUState *cpu, + uint64_t val, hwaddr addr, MemTxAttrs attrs) +{ + LoongsonIPICommonClass *licc = LOONGSON_IPI_COMMON_GET_CLASS(ipi); + int i, mask = 0, data = 0; + AddressSpace *iocsr_as = licc->get_iocsr_as(cpu); + + if (!iocsr_as) { + return MEMTX_DECODE_ERROR; + } + + /* + * bit 27-30 is mask for byte writing, + * if the mask is 0, we need not to do anything. + */ + if ((val >> 27) & 0xf) { + data = address_space_ldl_le(iocsr_as, addr, attrs, NULL); + for (i = 0; i < 4; i++) { + /* get mask for byte writing */ + if (val & (0x1 << (27 + i))) { + mask |= 0xff << (i * 8); + } + } + } + + data &= mask; + data |= (val >> 32) & ~mask; + address_space_stl_le(iocsr_as, addr, data, attrs, NULL); + + return MEMTX_OK; +} + +static MemTxResult mail_send(LoongsonIPICommonState *ipi, + uint64_t val, MemTxAttrs attrs) +{ + LoongsonIPICommonClass *licc = LOONGSON_IPI_COMMON_GET_CLASS(ipi); + uint32_t cpuid; + hwaddr addr; + CPUState *cs; + + cpuid = extract32(val, 16, 10); + cs = licc->cpu_by_arch_id(cpuid); + if (cs == NULL) { + return MEMTX_DECODE_ERROR; + } + + /* override requester_id */ + addr = SMP_IPI_MAILBOX + CORE_BUF_20 + (val & 0x1c); + attrs.requester_id = cs->cpu_index; + return send_ipi_data(ipi, cs, val, addr, attrs); +} + +static MemTxResult any_send(LoongsonIPICommonState *ipi, + uint64_t val, MemTxAttrs attrs) +{ + LoongsonIPICommonClass *licc = LOONGSON_IPI_COMMON_GET_CLASS(ipi); + uint32_t cpuid; + hwaddr addr; + CPUState *cs; + + cpuid = extract32(val, 16, 10); + cs = licc->cpu_by_arch_id(cpuid); + if (cs == NULL) { + return MEMTX_DECODE_ERROR; + } + + /* override requester_id */ + addr = val & 0xffff; + attrs.requester_id = cs->cpu_index; + return send_ipi_data(ipi, cs, val, addr, attrs); +} + +MemTxResult loongson_ipi_core_writel(void *opaque, hwaddr addr, uint64_t val, + unsigned size, MemTxAttrs attrs) +{ + IPICore *s = opaque; + LoongsonIPICommonState *ipi = s->ipi; + LoongsonIPICommonClass *licc = LOONGSON_IPI_COMMON_GET_CLASS(ipi); + int index = 0; + uint32_t cpuid; + uint8_t vector; + CPUState *cs; + + addr &= 0xff; + trace_loongson_ipi_write(size, (uint64_t)addr, val); + switch (addr) { + case CORE_STATUS_OFF: + qemu_log_mask(LOG_GUEST_ERROR, "can not be written"); + break; + case CORE_EN_OFF: + s->en = val; + break; + case CORE_SET_OFF: + s->status |= val; + if (s->status != 0 && (s->status & s->en) != 0) { + qemu_irq_raise(s->irq); + } + break; + case CORE_CLEAR_OFF: + s->status &= ~val; + if (s->status == 0 && s->en != 0) { + qemu_irq_lower(s->irq); + } + break; + case CORE_BUF_20 ... CORE_BUF_38 + 4: + index = (addr - CORE_BUF_20) >> 2; + s->buf[index] = val; + break; + case IOCSR_IPI_SEND: + cpuid = extract32(val, 16, 10); + /* IPI status vector */ + vector = extract8(val, 0, 5); + cs = licc->cpu_by_arch_id(cpuid); + if (cs == NULL || cs->cpu_index >= ipi->num_cpu) { + return MEMTX_DECODE_ERROR; + } + loongson_ipi_core_writel(&ipi->cpu[cs->cpu_index], CORE_SET_OFF, + BIT(vector), 4, attrs); + break; + default: + qemu_log_mask(LOG_UNIMP, "invalid write: %x", (uint32_t)addr); + break; + } + + return MEMTX_OK; +} + +static MemTxResult loongson_ipi_iocsr_writel(void *opaque, hwaddr addr, + uint64_t val, unsigned size, + MemTxAttrs attrs) +{ + LoongsonIPICommonState *ipi = opaque; + IPICore *s; + + if (attrs.requester_id >= ipi->num_cpu) { + return MEMTX_DECODE_ERROR; + } + + s = &ipi->cpu[attrs.requester_id]; + return loongson_ipi_core_writel(s, addr, val, size, attrs); +} + +static const MemoryRegionOps loongson_ipi_iocsr_ops = { + .read_with_attrs = loongson_ipi_iocsr_readl, + .write_with_attrs = loongson_ipi_iocsr_writel, + .impl.min_access_size = 4, + .impl.max_access_size = 4, + .valid.min_access_size = 4, + .valid.max_access_size = 8, + .endianness = DEVICE_LITTLE_ENDIAN, +}; + +/* mail send and any send only support writeq */ +static MemTxResult loongson_ipi_writeq(void *opaque, hwaddr addr, uint64_t val, + unsigned size, MemTxAttrs attrs) +{ + LoongsonIPICommonState *ipi = opaque; + MemTxResult ret = MEMTX_OK; + + addr &= 0xfff; + switch (addr) { + case MAIL_SEND_OFFSET: + ret = mail_send(ipi, val, attrs); + break; + case ANY_SEND_OFFSET: + ret = any_send(ipi, val, attrs); + break; + default: + break; + } + + return ret; +} + +static const MemoryRegionOps loongson_ipi64_ops = { + .write_with_attrs = loongson_ipi_writeq, + .impl.min_access_size = 8, + .impl.max_access_size = 8, + .valid.min_access_size = 8, + .valid.max_access_size = 8, + .endianness = DEVICE_LITTLE_ENDIAN, +}; + +static void loongson_ipi_common_realize(DeviceState *dev, Error **errp) +{ + LoongsonIPICommonState *s = LOONGSON_IPI_COMMON(dev); + SysBusDevice *sbd = SYS_BUS_DEVICE(dev); + int i; + + if (s->num_cpu == 0) { + error_setg(errp, "num-cpu must be at least 1"); + return; + } + + memory_region_init_io(&s->ipi_iocsr_mem, OBJECT(dev), + &loongson_ipi_iocsr_ops, + s, "loongson_ipi_iocsr", 0x48); + + /* loongson_ipi_iocsr performs re-entrant IO through ipi_send */ + s->ipi_iocsr_mem.disable_reentrancy_guard = true; + + sysbus_init_mmio(sbd, &s->ipi_iocsr_mem); + + memory_region_init_io(&s->ipi64_iocsr_mem, OBJECT(dev), + &loongson_ipi64_ops, + s, "loongson_ipi64_iocsr", 0x118); + sysbus_init_mmio(sbd, &s->ipi64_iocsr_mem); + + s->cpu = g_new0(IPICore, s->num_cpu); + for (i = 0; i < s->num_cpu; i++) { + s->cpu[i].ipi = s; + + qdev_init_gpio_out(dev, &s->cpu[i].irq, 1); + } +} static void loongson_ipi_common_finalize(Object *obj) { @@ -53,6 +324,7 @@ static void loongson_ipi_common_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); + dc->realize = loongson_ipi_common_realize; device_class_set_props(dc, ipi_properties); dc->vmsd = &vmstate_loongson_ipi; }