diff options
author | Peter Maydell <peter.maydell@linaro.org> | 2015-03-10 14:01:22 +0000 |
---|---|---|
committer | Peter Maydell <peter.maydell@linaro.org> | 2015-03-10 14:01:22 +0000 |
commit | 1976058109890892db8ec88bfd3273f79c459f6b (patch) | |
tree | 3819ee5d4406491751f99828f961a4b938f1e180 /hw/ide/pci.c | |
parent | 8437f7be3b1c49631e435c652707f2cee477149d (diff) | |
parent | 280458a34abcca2ba70843a089a35468c81e3740 (diff) | |
download | hqemu-1976058109890892db8ec88bfd3273f79c459f6b.zip hqemu-1976058109890892db8ec88bfd3273f79c459f6b.tar.gz |
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block patches for 2.3
# gpg: Signature made Tue Mar 10 13:03:17 2015 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream: (73 commits)
MAINTAINERS: Add jcody as blockjobs, block devices maintainer
iotests: add O_DIRECT alignment probing test
block/raw-posix: fix launching with failed disks
MAINTAINERS: Add jsnow as IDE maintainer
sheepdog: Fix misleading error messages in sd_snapshot_create()
Add testcase for scsi-hd devices without drive property
scsi-hd: fix property unset case
block/vdi: Add locking for parallel requests
iotests: Drop vpc from 004's and 104's format list
iotests: Remove 006
iotests: Fix 051's reference output
virtio-blk: Remove the stale FIXME comment
tests: Check QVIRTIO_F_ANY_LAYOUT flag in virtio-blk test
libqos: Solve bug in interrupt checking when using MSIX in virtio-pci.c
sheepdog: fix confused return values
qtest/ahci: add fragmented dma test
qtest/ahci: Add PIO and LBA48 tests
qtest/ahci: Add DMA test variants
libqos/ahci: add ahci command helpers
qtest/ahci: Add a macro bootup routine
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/ide/pci.c')
-rw-r--r-- | hw/ide/pci.c | 109 |
1 files changed, 15 insertions, 94 deletions
diff --git a/hw/ide/pci.c b/hw/ide/pci.c index 913a976..1b3d1c1 100644 --- a/hw/ide/pci.c +++ b/hw/ide/pci.c @@ -42,13 +42,10 @@ static void bmdma_start_dma(IDEDMA *dma, IDEState *s, { BMDMAState *bm = DO_UPCAST(BMDMAState, dma, dma); - bm->unit = s->unit; bm->dma_cb = dma_cb; bm->cur_prd_last = 0; bm->cur_prd_addr = 0; bm->cur_prd_len = 0; - bm->sector_num = ide_get_sector(s); - bm->nsector = s->nsector; if (bm->status & BM_STATUS_DMAING) { bm->dma_cb(bmdma_active_if(bm), 0); @@ -163,20 +160,11 @@ static int bmdma_rw_buf(IDEDMA *dma, int is_write) return 1; } -static int bmdma_set_unit(IDEDMA *dma, int unit) -{ - BMDMAState *bm = DO_UPCAST(BMDMAState, dma, dma); - bm->unit = unit; - - return 0; -} - static void bmdma_set_inactive(IDEDMA *dma, bool more) { BMDMAState *bm = DO_UPCAST(BMDMAState, dma, dma); bm->dma_cb = NULL; - bm->unit = -1; if (more) { bm->status |= BM_STATUS_DMAING; } else { @@ -184,83 +172,11 @@ static void bmdma_set_inactive(IDEDMA *dma, bool more) } } -static void bmdma_restart_dma(BMDMAState *bm, enum ide_dma_cmd dma_cmd) -{ - IDEState *s = bmdma_active_if(bm); - - ide_set_sector(s, bm->sector_num); - s->io_buffer_index = 0; - s->io_buffer_size = 0; - s->nsector = bm->nsector; - s->dma_cmd = dma_cmd; - bm->cur_addr = bm->addr; - bm->dma_cb = ide_dma_cb; - bmdma_start_dma(&bm->dma, s, bm->dma_cb); -} - -/* TODO This should be common IDE code */ -static void bmdma_restart_bh(void *opaque) -{ - BMDMAState *bm = opaque; - IDEBus *bus = bm->bus; - bool is_read; - int error_status; - - qemu_bh_delete(bm->bh); - bm->bh = NULL; - - if (bm->unit == (uint8_t) -1) { - return; - } - - is_read = (bus->error_status & IDE_RETRY_READ) != 0; - - /* The error status must be cleared before resubmitting the request: The - * request may fail again, and this case can only be distinguished if the - * called function can set a new error status. */ - error_status = bus->error_status; - bus->error_status = 0; - - if (error_status & IDE_RETRY_DMA) { - if (error_status & IDE_RETRY_TRIM) { - bmdma_restart_dma(bm, IDE_DMA_TRIM); - } else { - bmdma_restart_dma(bm, is_read ? IDE_DMA_READ : IDE_DMA_WRITE); - } - } else if (error_status & IDE_RETRY_PIO) { - if (is_read) { - ide_sector_read(bmdma_active_if(bm)); - } else { - ide_sector_write(bmdma_active_if(bm)); - } - } else if (error_status & IDE_RETRY_FLUSH) { - ide_flush_cache(bmdma_active_if(bm)); - } else { - IDEState *s = bmdma_active_if(bm); - - /* - * We've not got any bits to tell us about ATAPI - but - * we do have the end_transfer_func that tells us what - * we're trying to do. - */ - if (s->end_transfer_func == ide_atapi_cmd) { - ide_atapi_dma_restart(s); - } - } -} - -static void bmdma_restart_cb(void *opaque, int running, RunState state) +static void bmdma_restart_dma(IDEDMA *dma) { - IDEDMA *dma = opaque; BMDMAState *bm = DO_UPCAST(BMDMAState, dma, dma); - if (!running) - return; - - if (!bm->bh) { - bm->bh = qemu_bh_new(bmdma_restart_bh, &bm->dma); - qemu_bh_schedule(bm->bh); - } + bm->cur_addr = bm->addr; } static void bmdma_cancel(BMDMAState *bm) @@ -286,8 +202,6 @@ static void bmdma_reset(IDEDMA *dma) bm->cur_prd_last = 0; bm->cur_prd_addr = 0; bm->cur_prd_len = 0; - bm->sector_num = 0; - bm->nsector = 0; } static void bmdma_irq(void *opaque, int n, int level) @@ -404,6 +318,9 @@ static void ide_bmdma_pre_save(void *opaque) BMDMAState *bm = opaque; uint8_t abused_bits = BM_MIGRATION_COMPAT_STATUS_BITS; + bm->migration_retry_unit = bm->bus->retry_unit; + bm->migration_retry_sector_num = bm->bus->retry_sector_num; + bm->migration_retry_nsector = bm->bus->retry_nsector; bm->migration_compat_status = (bm->status & ~abused_bits) | (bm->bus->error_status & abused_bits); } @@ -420,6 +337,11 @@ static int ide_bmdma_post_load(void *opaque, int version_id) bm->status = bm->migration_compat_status & ~abused_bits; bm->bus->error_status |= bm->migration_compat_status & abused_bits; } + if (bm->bus->error_status) { + bm->bus->retry_sector_num = bm->migration_retry_sector_num; + bm->bus->retry_nsector = bm->migration_retry_nsector; + bm->bus->retry_unit = bm->migration_retry_unit; + } return 0; } @@ -456,9 +378,9 @@ static const VMStateDescription vmstate_bmdma = { VMSTATE_UINT8(cmd, BMDMAState), VMSTATE_UINT8(migration_compat_status, BMDMAState), VMSTATE_UINT32(addr, BMDMAState), - VMSTATE_INT64(sector_num, BMDMAState), - VMSTATE_UINT32(nsector, BMDMAState), - VMSTATE_UINT8(unit, BMDMAState), + VMSTATE_INT64(migration_retry_sector_num, BMDMAState), + VMSTATE_UINT32(migration_retry_nsector, BMDMAState), + VMSTATE_UINT8(migration_retry_unit, BMDMAState), VMSTATE_END_OF_LIST() }, .subsections = (VMStateSubsection []) { @@ -482,7 +404,7 @@ static int ide_pci_post_load(void *opaque, int version_id) for(i = 0; i < 2; i++) { /* current versions always store 0/1, but older version stored bigger values. We only need last bit */ - d->bmdma[i].unit &= 1; + d->bmdma[i].migration_retry_unit &= 1; ide_bmdma_post_load(&d->bmdma[i], -1); } @@ -523,9 +445,8 @@ static const struct IDEDMAOps bmdma_ops = { .start_dma = bmdma_start_dma, .prepare_buf = bmdma_prepare_buf, .rw_buf = bmdma_rw_buf, - .set_unit = bmdma_set_unit, + .restart_dma = bmdma_restart_dma, .set_inactive = bmdma_set_inactive, - .restart_cb = bmdma_restart_cb, .reset = bmdma_reset, }; |