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[83.52.55.163]) by smtp.gmail.com with ESMTPSA id b20sm3035140wmj.48.2021.08.19.09.34.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Aug 2021 09:34:42 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH v2 4/4] hw/dma/xlnx-zdma Always expect 'dma' link property to be set Date: Thu, 19 Aug 2021 18:34:22 +0200 Message-Id: <20210819163422.2863447-5-philmd@redhat.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210819163422.2863447-1-philmd@redhat.com> References: <20210819163422.2863447-1-philmd@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=philmd@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=philmd@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.7, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Edgar E. Iglesias" , qemu-arm@nongnu.org, =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Alistair Francis , Peter Maydell Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Simplify by always passing a MemoryRegion property to the device. Doing so we can move the AddressSpace field to the device struct, removing need for heap allocation. Update the Xilinx ZynqMP / Versal SoC models to pass the default system memory instead of a NULL value. Suggested-by: Peter Maydell Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Peter Maydell --- include/hw/dma/xlnx-zdma.h | 2 +- hw/arm/xlnx-versal.c | 2 ++ hw/arm/xlnx-zynqmp.c | 8 ++++++++ hw/dma/xlnx-zdma.c | 24 ++++++++++++------------ 4 files changed, 23 insertions(+), 13 deletions(-) diff --git a/include/hw/dma/xlnx-zdma.h b/include/hw/dma/xlnx-zdma.h index 6602e7ffa72..efc75217d59 100644 --- a/include/hw/dma/xlnx-zdma.h +++ b/include/hw/dma/xlnx-zdma.h @@ -56,7 +56,7 @@ struct XlnxZDMA { MemoryRegion iomem; MemTxAttrs attr; MemoryRegion *dma_mr; - AddressSpace *dma_as; + AddressSpace dma_as; qemu_irq irq_zdma_ch_imr; struct { diff --git a/hw/arm/xlnx-versal.c b/hw/arm/xlnx-versal.c index fb776834f7e..d60eb4fb184 100644 --- a/hw/arm/xlnx-versal.c +++ b/hw/arm/xlnx-versal.c @@ -218,6 +218,8 @@ static void versal_create_admas(Versal *s, qemu_irq *pic) TYPE_XLNX_ZDMA); dev = DEVICE(&s->lpd.iou.adma[i]); object_property_set_int(OBJECT(dev), "bus-width", 128, &error_abort); + object_property_set_link(OBJECT(dev), "dma", + OBJECT(get_system_memory()), &error_fatal); sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal); mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0); diff --git a/hw/arm/xlnx-zynqmp.c b/hw/arm/xlnx-zynqmp.c index 4344e223f2d..6cfce26210d 100644 --- a/hw/arm/xlnx-zynqmp.c +++ b/hw/arm/xlnx-zynqmp.c @@ -601,6 +601,10 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp) errp)) { return; } + if (!object_property_set_link(OBJECT(&s->gdma[i]), "dma", + OBJECT(system_memory), errp)) { + return; + } if (!sysbus_realize(SYS_BUS_DEVICE(&s->gdma[i]), errp)) { return; } @@ -611,6 +615,10 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp) } for (i = 0; i < XLNX_ZYNQMP_NUM_ADMA_CH; i++) { + if (!object_property_set_link(OBJECT(&s->adma[i]), "dma", + OBJECT(system_memory), errp)) { + return; + } if (!sysbus_realize(SYS_BUS_DEVICE(&s->adma[i]), errp)) { return; } diff --git a/hw/dma/xlnx-zdma.c b/hw/dma/xlnx-zdma.c index fa38a556341..a5a92b4ff8c 100644 --- a/hw/dma/xlnx-zdma.c +++ b/hw/dma/xlnx-zdma.c @@ -320,9 +320,9 @@ static bool zdma_load_descriptor(XlnxZDMA *s, uint64_t addr, return false; } - descr->addr = address_space_ldq_le(s->dma_as, addr, s->attr, NULL); - descr->size = address_space_ldl_le(s->dma_as, addr + 8, s->attr, NULL); - descr->attr = address_space_ldl_le(s->dma_as, addr + 12, s->attr, NULL); + descr->addr = address_space_ldq_le(&s->dma_as, addr, s->attr, NULL); + descr->size = address_space_ldl_le(&s->dma_as, addr + 8, s->attr, NULL); + descr->attr = address_space_ldl_le(&s->dma_as, addr + 12, s->attr, NULL); return true; } @@ -354,7 +354,7 @@ static void zdma_update_descr_addr(XlnxZDMA *s, bool type, } else { addr = zdma_get_regaddr64(s, basereg); addr += sizeof(s->dsc_dst); - next = address_space_ldq_le(s->dma_as, addr, s->attr, NULL); + next = address_space_ldq_le(&s->dma_as, addr, s->attr, NULL); } zdma_put_regaddr64(s, basereg, next); @@ -421,7 +421,7 @@ static void zdma_write_dst(XlnxZDMA *s, uint8_t *buf, uint32_t len) } } - address_space_write(s->dma_as, s->dsc_dst.addr, s->attr, buf, dlen); + address_space_write(&s->dma_as, s->dsc_dst.addr, s->attr, buf, dlen); if (burst_type == AXI_BURST_INCR) { s->dsc_dst.addr += dlen; } @@ -497,7 +497,7 @@ static void zdma_process_descr(XlnxZDMA *s) len = s->cfg.bus_width / 8; } } else { - address_space_read(s->dma_as, src_addr, s->attr, s->buf, len); + address_space_read(&s->dma_as, src_addr, s->attr, s->buf, len); if (burst_type == AXI_BURST_INCR) { src_addr += len; } @@ -765,6 +765,12 @@ static void zdma_realize(DeviceState *dev, Error **errp) XlnxZDMA *s = XLNX_ZDMA(dev); unsigned int i; + if (!s->dma_mr) { + error_setg(errp, TYPE_XLNX_ZDMA " 'dma' link not set"); + return; + } + address_space_init(&s->dma_as, s->dma_mr, "zdma-dma"); + for (i = 0; i < ARRAY_SIZE(zdma_regs_info); ++i) { RegisterInfo *r = &s->regs_info[zdma_regs_info[i].addr / 4]; @@ -777,12 +783,6 @@ static void zdma_realize(DeviceState *dev, Error **errp) }; } - if (s->dma_mr) { - s->dma_as = g_malloc0(sizeof(AddressSpace)); - address_space_init(s->dma_as, s->dma_mr, NULL); - } else { - s->dma_as = &address_space_memory; - } s->attr = MEMTXATTRS_UNSPECIFIED; }