From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eduard - Gabriel Munteanu Subject: [RFC PATCH 13/13] usb-ohci: use the DMA memory access interface Date: Wed, 1 Jun 2011 04:38:35 +0300 Message-ID: <1306892315-7306-14-git-send-email-eduard.munteanu@linux360.ro> References: <1306892315-7306-1-git-send-email-eduard.munteanu@linux360.ro> Cc: seabios@seabios.org, kevin@koconnor.net, joro@8bytes.org, blauwirbel@gmail.com, paul@codesourcery.com, avi@redhat.com, anthony@codemonkey.ws, av1474@comtv.ru, yamahata@valinux.co.jp, kvm@vger.kernel.org, qemu-devel@nongnu.org, benh@kernel.crashing.org, aik@ozlabs.ru, agraf@suse.de, aliguori@us.ibm.com, dwg@au1.ibm.com, rth@twiddle.net, david@gibson.dropbear.id.au, Eduard - Gabriel Munteanu To: mst@redhat.com Return-path: Received: from mail-bw0-f46.google.com ([209.85.214.46]:39474 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758607Ab1FABjS (ORCPT ); Tue, 31 May 2011 21:39:18 -0400 Received: by mail-bw0-f46.google.com with SMTP id 15so4139763bwz.19 for ; Tue, 31 May 2011 18:39:17 -0700 (PDT) In-Reply-To: <1306892315-7306-1-git-send-email-eduard.munteanu@linux360.ro> Sender: kvm-owner@vger.kernel.org List-ID: This allows the device to work properly with an emulated IOMMU. Signed-off-by: Eduard - Gabriel Munteanu --- hw/usb-ohci.c | 46 +++++++++++++++++++++++++++++++--------------- 1 files changed, 31 insertions(+), 15 deletions(-) diff --git a/hw/usb-ohci.c b/hw/usb-ohci.c index d21c820..9d1cf91 100644 --- a/hw/usb-ohci.c +++ b/hw/usb-ohci.c @@ -116,6 +116,11 @@ typedef struct { } OHCIState; +typedef struct { + PCIDevice pci_dev; + OHCIState state; +} OHCIPCIState; + /* Host Controller Communications Area */ struct ohci_hcca { uint32_t intr[32]; @@ -422,12 +427,13 @@ static void ohci_reset(void *opaque) static inline int get_dwords(OHCIState *ohci, uint32_t addr, uint32_t *buf, int num) { + OHCIPCIState *s = container_of(ohci, OHCIPCIState, state); int i; addr += ohci->localmem_base; for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { - cpu_physical_memory_read(addr, buf, sizeof(*buf)); + pci_memory_read(&s->pci_dev, addr, buf, sizeof(*buf)); *buf = le32_to_cpu(*buf); } @@ -438,13 +444,14 @@ static inline int get_dwords(OHCIState *ohci, static inline int put_dwords(OHCIState *ohci, uint32_t addr, uint32_t *buf, int num) { + OHCIPCIState *s = container_of(ohci, OHCIPCIState, state); int i; addr += ohci->localmem_base; for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { uint32_t tmp = cpu_to_le32(*buf); - cpu_physical_memory_write(addr, &tmp, sizeof(tmp)); + pci_memory_write(&s->pci_dev, addr, &tmp, sizeof(tmp)); } return 1; @@ -454,12 +461,13 @@ static inline int put_dwords(OHCIState *ohci, static inline int get_words(OHCIState *ohci, uint32_t addr, uint16_t *buf, int num) { + OHCIPCIState *s = container_of(ohci, OHCIPCIState, state); int i; addr += ohci->localmem_base; for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { - cpu_physical_memory_read(addr, buf, sizeof(*buf)); + pci_memory_read(&s->pci_dev, addr, buf, sizeof(*buf)); *buf = le16_to_cpu(*buf); } @@ -470,13 +478,14 @@ static inline int get_words(OHCIState *ohci, static inline int put_words(OHCIState *ohci, uint32_t addr, uint16_t *buf, int num) { + OHCIPCIState *s = container_of(ohci, OHCIPCIState, state); int i; addr += ohci->localmem_base; for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { uint16_t tmp = cpu_to_le16(*buf); - cpu_physical_memory_write(addr, &tmp, sizeof(tmp)); + pci_memory_write(&s->pci_dev, addr, &tmp, sizeof(tmp)); } return 1; @@ -504,7 +513,11 @@ static inline int ohci_read_iso_td(OHCIState *ohci, static inline int ohci_read_hcca(OHCIState *ohci, uint32_t addr, struct ohci_hcca *hcca) { - cpu_physical_memory_read(addr + ohci->localmem_base, hcca, sizeof(*hcca)); + OHCIPCIState *s = container_of(ohci, OHCIPCIState, state); + + pci_memory_read(&s->pci_dev, + addr + ohci->localmem_base, hcca, sizeof(*hcca)); + return 1; } @@ -530,7 +543,11 @@ static inline int ohci_put_iso_td(OHCIState *ohci, static inline int ohci_put_hcca(OHCIState *ohci, uint32_t addr, struct ohci_hcca *hcca) { - cpu_physical_memory_write(addr + ohci->localmem_base, hcca, sizeof(*hcca)); + OHCIPCIState *s = container_of(ohci, OHCIPCIState, state); + + pci_memory_write(&s->pci_dev, + addr + ohci->localmem_base, hcca, sizeof(*hcca)); + return 1; } @@ -538,6 +555,8 @@ static inline int ohci_put_hcca(OHCIState *ohci, static void ohci_copy_td(OHCIState *ohci, struct ohci_td *td, uint8_t *buf, int len, int write) { + OHCIPCIState *s = container_of(ohci, OHCIPCIState, state); + DMADevice *dma = &s->pci_dev.dma; uint32_t ptr; uint32_t n; @@ -545,12 +564,12 @@ static void ohci_copy_td(OHCIState *ohci, struct ohci_td *td, n = 0x1000 - (ptr & 0xfff); if (n > len) n = len; - cpu_physical_memory_rw(ptr + ohci->localmem_base, buf, n, write); + dma_memory_rw(dma, ptr + ohci->localmem_base, buf, n, write); if (n == len) return; ptr = td->be & ~0xfffu; buf += n; - cpu_physical_memory_rw(ptr + ohci->localmem_base, buf, len - n, write); + dma_memory_rw(dma, ptr + ohci->localmem_base, buf, len - n, write); } /* Read/Write the contents of an ISO TD from/to main memory. */ @@ -558,6 +577,8 @@ static void ohci_copy_iso_td(OHCIState *ohci, uint32_t start_addr, uint32_t end_addr, uint8_t *buf, int len, int write) { + OHCIPCIState *s = container_of(ohci, OHCIPCIState, state); + DMADevice *dma = &s->pci_dev.dma; uint32_t ptr; uint32_t n; @@ -565,12 +586,12 @@ static void ohci_copy_iso_td(OHCIState *ohci, n = 0x1000 - (ptr & 0xfff); if (n > len) n = len; - cpu_physical_memory_rw(ptr + ohci->localmem_base, buf, n, write); + dma_memory_rw(dma, ptr + ohci->localmem_base, buf, n, write); if (n == len) return; ptr = end_addr & ~0xfffu; buf += n; - cpu_physical_memory_rw(ptr + ohci->localmem_base, buf, len - n, write); + dma_memory_rw(dma, ptr + ohci->localmem_base, buf, len - n, write); } static void ohci_process_lists(OHCIState *ohci, int completion); @@ -1706,11 +1727,6 @@ static void usb_ohci_init(OHCIState *ohci, DeviceState *dev, qemu_register_reset(ohci_reset, ohci); } -typedef struct { - PCIDevice pci_dev; - OHCIState state; -} OHCIPCIState; - static int usb_ohci_initfn_pci(struct PCIDevice *dev) { OHCIPCIState *ohci = DO_UPCAST(OHCIPCIState, pci_dev, dev); -- 1.7.3.4