diff options
Diffstat (limited to 'hw/sd')
| -rw-r--r-- | hw/sd/allwinner-sdhost.c | 37 |
1 files changed, 31 insertions, 6 deletions
diff --git a/hw/sd/allwinner-sdhost.c b/hw/sd/allwinner-sdhost.c index f9eb92c09e..e82afb75eb 100644 --- a/hw/sd/allwinner-sdhost.c +++ b/hw/sd/allwinner-sdhost.c @@ -21,7 +21,10 @@ #include "qemu/log.h" #include "qemu/module.h" #include "qemu/units.h" +#include "qapi/error.h" #include "sysemu/blockdev.h" +#include "sysemu/dma.h" +#include "hw/qdev-properties.h" #include "hw/irq.h" #include "hw/sd/allwinner-sdhost.h" #include "migration/vmstate.h" @@ -306,7 +309,7 @@ static uint32_t allwinner_sdhost_process_desc(AwSdHostState *s, uint8_t buf[1024]; /* Read descriptor */ - cpu_physical_memory_read(desc_addr, desc, sizeof(*desc)); + dma_memory_read(&s->dma_as, desc_addr, desc, sizeof(*desc)); if (desc->size == 0) { desc->size = klass->max_desc_size; } else if (desc->size > klass->max_desc_size) { @@ -331,22 +334,24 @@ static uint32_t allwinner_sdhost_process_desc(AwSdHostState *s, /* Write to SD bus */ if (is_write) { - cpu_physical_memory_read((desc->addr & DESC_SIZE_MASK) + num_done, - buf, buf_bytes); + dma_memory_read(&s->dma_as, + (desc->addr & DESC_SIZE_MASK) + num_done, + buf, buf_bytes); sdbus_write_data(&s->sdbus, buf, buf_bytes); /* Read from SD bus */ } else { sdbus_read_data(&s->sdbus, buf, buf_bytes); - cpu_physical_memory_write((desc->addr & DESC_SIZE_MASK) + num_done, - buf, buf_bytes); + dma_memory_write(&s->dma_as, + (desc->addr & DESC_SIZE_MASK) + num_done, + buf, buf_bytes); } num_done += buf_bytes; } /* Clear hold flag and flush descriptor */ desc->status &= ~DESC_STATUS_HOLD; - cpu_physical_memory_write(desc_addr, desc, sizeof(*desc)); + dma_memory_write(&s->dma_as, desc_addr, desc, sizeof(*desc)); return num_done; } @@ -721,6 +726,12 @@ static const VMStateDescription vmstate_allwinner_sdhost = { } }; +static Property allwinner_sdhost_properties[] = { + DEFINE_PROP_LINK("dma-memory", AwSdHostState, dma_mr, + TYPE_MEMORY_REGION, MemoryRegion *), + DEFINE_PROP_END_OF_LIST(), +}; + static void allwinner_sdhost_init(Object *obj) { AwSdHostState *s = AW_SDHOST(obj); @@ -734,6 +745,18 @@ static void allwinner_sdhost_init(Object *obj) sysbus_init_irq(SYS_BUS_DEVICE(s), &s->irq); } +static void allwinner_sdhost_realize(DeviceState *dev, Error **errp) +{ + AwSdHostState *s = AW_SDHOST(dev); + + if (!s->dma_mr) { + error_setg(errp, TYPE_AW_SDHOST " 'dma-memory' link not set"); + return; + } + + address_space_init(&s->dma_as, s->dma_mr, "sdhost-dma"); +} + static void allwinner_sdhost_reset(DeviceState *dev) { AwSdHostState *s = AW_SDHOST(dev); @@ -792,6 +815,8 @@ static void allwinner_sdhost_class_init(ObjectClass *klass, void *data) dc->reset = allwinner_sdhost_reset; dc->vmsd = &vmstate_allwinner_sdhost; + dc->realize = allwinner_sdhost_realize; + device_class_set_props(dc, allwinner_sdhost_properties); } static void allwinner_sdhost_sun4i_class_init(ObjectClass *klass, void *data) |