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author | Paolo Bonzini <pbonzini@redhat.com> | 2014-06-13 17:26:13 +0200 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-06-18 08:47:10 +0200 |
commit | 1016b239c5c7b54a02fbd3121f68fb264a42d0a1 (patch) | |
tree | 54d11e2dcbd53ca89d4d92efc1ee403e57b1aa29 /hw/scsi | |
parent | b9e77bc718db3593ffbb56f3a51488cdce4d5af3 (diff) | |
download | hqemu-1016b239c5c7b54a02fbd3121f68fb264a42d0a1.zip hqemu-1016b239c5c7b54a02fbd3121f68fb264a42d0a1.tar.gz |
megasas: use PCI DMA API
MegaSAS emulation is not IOMMU-friendly. Fix this by switching to
pci_dma_* functions.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/scsi')
-rw-r--r-- | hw/scsi/megasas.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c index b05c47a..c68a873 100644 --- a/hw/scsi/megasas.c +++ b/hw/scsi/megasas.c @@ -294,6 +294,7 @@ static void megasas_unmap_sgl(MegasasCmd *cmd) static int megasas_build_sense(MegasasCmd *cmd, uint8_t *sense_ptr, uint8_t sense_len) { + PCIDevice *pcid = PCI_DEVICE(cmd->state); uint32_t pa_hi = 0, pa_lo; hwaddr pa; @@ -306,7 +307,7 @@ static int megasas_build_sense(MegasasCmd *cmd, uint8_t *sense_ptr, pa_hi = le32_to_cpu(cmd->frame->pass.sense_addr_hi); } pa = ((uint64_t) pa_hi << 32) | pa_lo; - cpu_physical_memory_write(pa, sense_ptr, sense_len); + pci_dma_write(pcid, pa, sense_ptr, sense_len); cmd->frame->header.sense_len = sense_len; } return sense_len; @@ -472,6 +473,7 @@ static MegasasCmd *megasas_next_frame(MegasasState *s, static MegasasCmd *megasas_enqueue_frame(MegasasState *s, hwaddr frame, uint64_t context, int count) { + PCIDevice *pcid = PCI_DEVICE(s); MegasasCmd *cmd = NULL; int frame_size = MFI_FRAME_SIZE * 16; hwaddr frame_size_p = frame_size; @@ -484,11 +486,11 @@ static MegasasCmd *megasas_enqueue_frame(MegasasState *s, if (!cmd->pa) { cmd->pa = frame; /* Map all possible frames */ - cmd->frame = cpu_physical_memory_map(frame, &frame_size_p, 0); + cmd->frame = pci_dma_map(pcid, frame, &frame_size_p, 0); if (frame_size_p != frame_size) { trace_megasas_qf_map_failed(cmd->index, (unsigned long)frame); if (cmd->frame) { - cpu_physical_memory_unmap(cmd->frame, frame_size_p, 0, 0); + pci_dma_unmap(pcid, cmd->frame, frame_size_p, 0, 0); cmd->frame = NULL; cmd->pa = 0; } @@ -561,13 +563,14 @@ static void megasas_complete_frame(MegasasState *s, uint64_t context) static void megasas_reset_frames(MegasasState *s) { + PCIDevice *pcid = PCI_DEVICE(s); int i; MegasasCmd *cmd; for (i = 0; i < s->fw_cmds; i++) { cmd = &s->frames[i]; if (cmd->pa) { - cpu_physical_memory_unmap(cmd->frame, cmd->pa_size, 0, 0); + pci_dma_unmap(pcid, cmd->frame, cmd->pa_size, 0, 0); cmd->frame = NULL; cmd->pa = 0; } @@ -584,6 +587,7 @@ static void megasas_abort_command(MegasasCmd *cmd) static int megasas_init_firmware(MegasasState *s, MegasasCmd *cmd) { + PCIDevice *pcid = PCI_DEVICE(s); uint32_t pa_hi, pa_lo; hwaddr iq_pa, initq_size; struct mfi_init_qinfo *initq; @@ -595,7 +599,7 @@ static int megasas_init_firmware(MegasasState *s, MegasasCmd *cmd) iq_pa = (((uint64_t) pa_hi << 32) | pa_lo); trace_megasas_init_firmware((uint64_t)iq_pa); initq_size = sizeof(*initq); - initq = cpu_physical_memory_map(iq_pa, &initq_size, 0); + initq = pci_dma_map(pcid, iq_pa, &initq_size, 0); if (!initq || initq_size != sizeof(*initq)) { trace_megasas_initq_map_failed(cmd->index); s->event_count++; @@ -631,7 +635,7 @@ static int megasas_init_firmware(MegasasState *s, MegasasCmd *cmd) s->fw_state = MFI_FWSTATE_OPERATIONAL; out: if (initq) { - cpu_physical_memory_unmap(initq, initq_size, 0, 0); + pci_dma_unmap(pcid, initq, initq_size, 0, 0); } return ret; } |