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5544c1 |
From d2efc9f3dc62810ef6075f8759c9856016447c14 Mon Sep 17 00:00:00 2001
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Hans de Goede |
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From: Gerd Hoffmann <kraxel@redhat.com>
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Hans de Goede |
c8dfc6 |
Date: Tue, 4 Sep 2012 14:42:20 +0200
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5544c1 |
Subject: [PATCH] xhci: kill xhci_mem_{read,write} dispatcher functions
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Hans de Goede |
c8dfc6 |
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... and register subregions instead, so we offload the dispatching
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to the the memory subsystem which is designed to handle it.
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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---
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hw/usb/hcd-xhci.c | 140 +++++++++++++++++++++++++++++-------------------------
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1 file changed, 75 insertions(+), 65 deletions(-)
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diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
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5544c1 |
index 4992705..4ba9464 100644
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--- a/hw/usb/hcd-xhci.c
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+++ b/hw/usb/hcd-xhci.c
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@@ -404,6 +404,10 @@ struct XHCIState {
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USBBus bus;
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qemu_irq irq;
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MemoryRegion mem;
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+ MemoryRegion mem_cap;
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+ MemoryRegion mem_oper;
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+ MemoryRegion mem_runtime;
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+ MemoryRegion mem_doorbell;
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const char *name;
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unsigned int devaddr;
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5544c1 |
@@ -2343,8 +2347,9 @@ static void xhci_reset(DeviceState *dev)
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xhci_mfwrap_update(xhci);
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}
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Hans de Goede |
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Hans de Goede |
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-static uint32_t xhci_cap_read(XHCIState *xhci, uint32_t reg)
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+static uint64_t xhci_cap_read(void *ptr, target_phys_addr_t reg, unsigned size)
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{
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+ XHCIState *xhci = ptr;
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uint32_t ret;
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Hans de Goede |
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switch (reg) {
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5544c1 |
@@ -2401,7 +2406,7 @@ static uint32_t xhci_cap_read(XHCIState *xhci, uint32_t reg)
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ret = 0x00000000; /* reserved */
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break;
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default:
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- fprintf(stderr, "xhci_cap_read: reg %d unimplemented\n", reg);
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+ fprintf(stderr, "xhci_cap_read: reg %d unimplemented\n", (int)reg);
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ret = 0;
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}
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@@ -2482,8 +2487,9 @@ static void xhci_port_write(XHCIState *xhci, uint32_t reg, uint32_t val)
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}
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}
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-static uint32_t xhci_oper_read(XHCIState *xhci, uint32_t reg)
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+static uint64_t xhci_oper_read(void *ptr, target_phys_addr_t reg, unsigned size)
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{
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+ XHCIState *xhci = ptr;
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uint32_t ret;
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if (reg >= 0x400) {
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5544c1 |
@@ -2519,7 +2525,7 @@ static uint32_t xhci_oper_read(XHCIState *xhci, uint32_t reg)
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ret = xhci->config;
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break;
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default:
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- fprintf(stderr, "xhci_oper_read: reg 0x%x unimplemented\n", reg);
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+ fprintf(stderr, "xhci_oper_read: reg 0x%x unimplemented\n", (int)reg);
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ret = 0;
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}
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@@ -2527,8 +2533,11 @@ static uint32_t xhci_oper_read(XHCIState *xhci, uint32_t reg)
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return ret;
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}
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-static void xhci_oper_write(XHCIState *xhci, uint32_t reg, uint32_t val)
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+static void xhci_oper_write(void *ptr, target_phys_addr_t reg,
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+ uint64_t val, unsigned size)
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{
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+ XHCIState *xhci = ptr;
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+
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if (reg >= 0x400) {
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xhci_port_write(xhci, reg - 0x400, val);
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return;
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@@ -2586,12 +2595,14 @@ static void xhci_oper_write(XHCIState *xhci, uint32_t reg, uint32_t val)
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xhci->config = val & 0xff;
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break;
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default:
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- fprintf(stderr, "xhci_oper_write: reg 0x%x unimplemented\n", reg);
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+ fprintf(stderr, "xhci_oper_write: reg 0x%x unimplemented\n", (int)reg);
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}
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}
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-static uint32_t xhci_runtime_read(XHCIState *xhci, uint32_t reg)
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+static uint64_t xhci_runtime_read(void *ptr, target_phys_addr_t reg,
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+ unsigned size)
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{
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+ XHCIState *xhci = ptr;
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uint32_t ret = 0;
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if (reg < 0x20) {
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@@ -2600,7 +2611,8 @@ static uint32_t xhci_runtime_read(XHCIState *xhci, uint32_t reg)
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ret = xhci_mfindex_get(xhci) & 0x3fff;
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break;
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default:
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- fprintf(stderr, "xhci_runtime_read: reg 0x%x unimplemented\n", reg);
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+ fprintf(stderr, "xhci_runtime_read: reg 0x%x unimplemented\n",
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+ (int)reg);
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break;
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}
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} else {
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@@ -2635,14 +2647,16 @@ static uint32_t xhci_runtime_read(XHCIState *xhci, uint32_t reg)
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return ret;
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}
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-static void xhci_runtime_write(XHCIState *xhci, uint32_t reg, uint32_t val)
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+static void xhci_runtime_write(void *ptr, target_phys_addr_t reg,
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+ uint64_t val, unsigned size)
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{
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+ XHCIState *xhci = ptr;
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int v = (reg - 0x20) / 0x20;
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XHCIInterrupter *intr = &xhci->intr[v];
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trace_usb_xhci_runtime_write(reg, val);
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if (reg < 0x20) {
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- fprintf(stderr, "xhci_oper_write: reg 0x%x unimplemented\n", reg);
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+ fprintf(stderr, "xhci_oper_write: reg 0x%x unimplemented\n", (int)reg);
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return;
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}
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@@ -2684,19 +2698,24 @@ static void xhci_runtime_write(XHCIState *xhci, uint32_t reg, uint32_t val)
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xhci_events_update(xhci, v);
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break;
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default:
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- fprintf(stderr, "xhci_oper_write: reg 0x%x unimplemented\n", reg);
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+ fprintf(stderr, "xhci_oper_write: reg 0x%x unimplemented\n",
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+ (int)reg);
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}
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}
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-static uint32_t xhci_doorbell_read(XHCIState *xhci, uint32_t reg)
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+static uint64_t xhci_doorbell_read(void *ptr, target_phys_addr_t reg,
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+ unsigned size)
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{
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/* doorbells always read as 0 */
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trace_usb_xhci_doorbell_read(reg, 0);
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return 0;
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}
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-static void xhci_doorbell_write(XHCIState *xhci, uint32_t reg, uint32_t val)
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+static void xhci_doorbell_write(void *ptr, target_phys_addr_t reg,
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+ uint64_t val, unsigned size)
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{
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+ XHCIState *xhci = ptr;
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+
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trace_usb_xhci_doorbell_write(reg, val);
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if (!xhci_running(xhci)) {
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@@ -2710,69 +2729,47 @@ static void xhci_doorbell_write(XHCIState *xhci, uint32_t reg, uint32_t val)
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if (val == 0) {
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xhci_process_commands(xhci);
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} else {
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- fprintf(stderr, "xhci: bad doorbell 0 write: 0x%x\n", val);
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+ fprintf(stderr, "xhci: bad doorbell 0 write: 0x%x\n",
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+ (uint32_t)val);
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}
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} else {
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if (reg > MAXSLOTS) {
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- fprintf(stderr, "xhci: bad doorbell %d\n", reg);
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+ fprintf(stderr, "xhci: bad doorbell %d\n", (int)reg);
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} else if (val > 31) {
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- fprintf(stderr, "xhci: bad doorbell %d write: 0x%x\n", reg, val);
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+ fprintf(stderr, "xhci: bad doorbell %d write: 0x%x\n",
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+ (int)reg, (uint32_t)val);
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} else {
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xhci_kick_ep(xhci, reg, val);
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}
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}
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}
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-static uint64_t xhci_mem_read(void *ptr, target_phys_addr_t addr,
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- unsigned size)
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-{
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- XHCIState *xhci = ptr;
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-
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- /* Only aligned reads are allowed on xHCI */
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- if (addr & 3) {
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- fprintf(stderr, "xhci_mem_read: Mis-aligned read\n");
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- return 0;
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- }
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-
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- if (addr < LEN_CAP) {
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- return xhci_cap_read(xhci, addr);
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- } else if (addr >= OFF_OPER && addr < (OFF_OPER + LEN_OPER)) {
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- return xhci_oper_read(xhci, addr - OFF_OPER);
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- } else if (addr >= OFF_RUNTIME && addr < (OFF_RUNTIME + LEN_RUNTIME)) {
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- return xhci_runtime_read(xhci, addr - OFF_RUNTIME);
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Hans de Goede |
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- } else if (addr >= OFF_DOORBELL && addr < (OFF_DOORBELL + LEN_DOORBELL)) {
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- return xhci_doorbell_read(xhci, addr - OFF_DOORBELL);
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- } else {
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- fprintf(stderr, "xhci_mem_read: Bad offset %x\n", (int)addr);
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- return 0;
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- }
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-}
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Hans de Goede |
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-
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-static void xhci_mem_write(void *ptr, target_phys_addr_t addr,
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- uint64_t val, unsigned size)
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-{
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Hans de Goede |
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- XHCIState *xhci = ptr;
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Hans de Goede |
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+static const MemoryRegionOps xhci_cap_ops = {
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Hans de Goede |
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+ .read = xhci_cap_read,
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+ .valid.min_access_size = 4,
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+ .valid.max_access_size = 4,
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+ .endianness = DEVICE_LITTLE_ENDIAN,
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c8dfc6 |
+};
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Hans de Goede |
c8dfc6 |
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Hans de Goede |
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- /* Only aligned writes are allowed on xHCI */
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Hans de Goede |
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- if (addr & 3) {
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Hans de Goede |
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- fprintf(stderr, "xhci_mem_write: Mis-aligned write\n");
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Hans de Goede |
c8dfc6 |
- return;
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Hans de Goede |
c8dfc6 |
- }
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Hans de Goede |
c8dfc6 |
+static const MemoryRegionOps xhci_oper_ops = {
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Hans de Goede |
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+ .read = xhci_oper_read,
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Hans de Goede |
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+ .write = xhci_oper_write,
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+ .valid.min_access_size = 4,
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+ .valid.max_access_size = 4,
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Hans de Goede |
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+ .endianness = DEVICE_LITTLE_ENDIAN,
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Hans de Goede |
c8dfc6 |
+};
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Hans de Goede |
c8dfc6 |
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Hans de Goede |
c8dfc6 |
- if (addr >= OFF_OPER && addr < (OFF_OPER + LEN_OPER)) {
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Hans de Goede |
c8dfc6 |
- xhci_oper_write(xhci, addr - OFF_OPER, val);
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Hans de Goede |
c8dfc6 |
- } else if (addr >= OFF_RUNTIME && addr < (OFF_RUNTIME + LEN_RUNTIME)) {
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Hans de Goede |
c8dfc6 |
- xhci_runtime_write(xhci, addr - OFF_RUNTIME, val);
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Hans de Goede |
c8dfc6 |
- } else if (addr >= OFF_DOORBELL && addr < (OFF_DOORBELL + LEN_DOORBELL)) {
|
|
Hans de Goede |
c8dfc6 |
- xhci_doorbell_write(xhci, addr - OFF_DOORBELL, val);
|
|
Hans de Goede |
c8dfc6 |
- } else {
|
|
Hans de Goede |
c8dfc6 |
- fprintf(stderr, "xhci_mem_write: Bad offset %x\n", (int)addr);
|
|
Hans de Goede |
c8dfc6 |
- }
|
|
Hans de Goede |
c8dfc6 |
-}
|
|
Hans de Goede |
c8dfc6 |
+static const MemoryRegionOps xhci_runtime_ops = {
|
|
Hans de Goede |
c8dfc6 |
+ .read = xhci_runtime_read,
|
|
Hans de Goede |
c8dfc6 |
+ .write = xhci_runtime_write,
|
|
Hans de Goede |
c8dfc6 |
+ .valid.min_access_size = 4,
|
|
Hans de Goede |
c8dfc6 |
+ .valid.max_access_size = 4,
|
|
Hans de Goede |
c8dfc6 |
+ .endianness = DEVICE_LITTLE_ENDIAN,
|
|
Hans de Goede |
c8dfc6 |
+};
|
|
Hans de Goede |
c8dfc6 |
|
|
Hans de Goede |
c8dfc6 |
-static const MemoryRegionOps xhci_mem_ops = {
|
|
Hans de Goede |
c8dfc6 |
- .read = xhci_mem_read,
|
|
Hans de Goede |
c8dfc6 |
- .write = xhci_mem_write,
|
|
Hans de Goede |
c8dfc6 |
+static const MemoryRegionOps xhci_doorbell_ops = {
|
|
Hans de Goede |
c8dfc6 |
+ .read = xhci_doorbell_read,
|
|
Hans de Goede |
c8dfc6 |
+ .write = xhci_doorbell_write,
|
|
|
5544c1 |
.valid.min_access_size = 1,
|
|
Hans de Goede |
c8dfc6 |
.valid.max_access_size = 4,
|
|
|
5544c1 |
.impl.min_access_size = 4,
|
|
Hans de Goede |
c8dfc6 |
@@ -2940,8 +2937,21 @@ static int usb_xhci_initfn(struct PCIDevice *dev)
|
|
Hans de Goede |
c8dfc6 |
|
|
Hans de Goede |
c8dfc6 |
xhci->irq = xhci->pci_dev.irq[0];
|
|
Hans de Goede |
c8dfc6 |
|
|
Hans de Goede |
c8dfc6 |
- memory_region_init_io(&xhci->mem, &xhci_mem_ops, xhci,
|
|
Hans de Goede |
c8dfc6 |
- "xhci", LEN_REGS);
|
|
Hans de Goede |
c8dfc6 |
+ memory_region_init(&xhci->mem, "xhci", LEN_REGS);
|
|
Hans de Goede |
c8dfc6 |
+ memory_region_init_io(&xhci->mem_cap, &xhci_cap_ops, xhci,
|
|
Hans de Goede |
c8dfc6 |
+ "capabilities", LEN_CAP);
|
|
Hans de Goede |
c8dfc6 |
+ memory_region_init_io(&xhci->mem_oper, &xhci_oper_ops, xhci,
|
|
Hans de Goede |
c8dfc6 |
+ "operational", 0x400 + 0x10 * xhci->numports);
|
|
Hans de Goede |
c8dfc6 |
+ memory_region_init_io(&xhci->mem_runtime, &xhci_runtime_ops, xhci,
|
|
Hans de Goede |
c8dfc6 |
+ "runtime", LEN_RUNTIME);
|
|
Hans de Goede |
c8dfc6 |
+ memory_region_init_io(&xhci->mem_doorbell, &xhci_doorbell_ops, xhci,
|
|
Hans de Goede |
c8dfc6 |
+ "doorbell", LEN_DOORBELL);
|
|
Hans de Goede |
c8dfc6 |
+
|
|
Hans de Goede |
c8dfc6 |
+ memory_region_add_subregion(&xhci->mem, 0, &xhci->mem_cap);
|
|
Hans de Goede |
c8dfc6 |
+ memory_region_add_subregion(&xhci->mem, OFF_OPER, &xhci->mem_oper);
|
|
Hans de Goede |
c8dfc6 |
+ memory_region_add_subregion(&xhci->mem, OFF_RUNTIME, &xhci->mem_runtime);
|
|
Hans de Goede |
c8dfc6 |
+ memory_region_add_subregion(&xhci->mem, OFF_DOORBELL, &xhci->mem_doorbell);
|
|
Hans de Goede |
c8dfc6 |
+
|
|
Hans de Goede |
c8dfc6 |
pci_register_bar(&xhci->pci_dev, 0,
|
|
Hans de Goede |
c8dfc6 |
PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64,
|
|
Hans de Goede |
c8dfc6 |
&xhci->mem);
|
|
Hans de Goede |
c8dfc6 |
--
|
|
|
5544c1 |
1.7.12.1
|
|
Hans de Goede |
c8dfc6 |
|