[Qemu-devel] [PATCH 0/5] dma/i82374: avoid double creation of i82374 device

[Philippe Mathieu-Daudé]

Hi,

This series intend to fix: https://bugs.launchpad.net/qemu/+bug/1721224

Patch #1 is the fix for 2.12, following patches are just refactors for 2.13.

The 8257 only has 4 DMA channels. To have 8 channels, the IBM PC/AT
implementation uses 2x 8257, the second cascaded onto the first.
The i8257_dma_init() name is misleading since this function creates two
8257 to register a total of 8 channels on the ISA bus.

The refactor is to enforce that 2 controllers are used (cascaded) - no
logical change.

Regards,

Phil.

Philippe Mathieu-Daudé (5):
  hw/dma/i82374: Avoid double creation of the 82374 controller
  hw/dma/i8257: Define I8257_CHANNEL_COUNT
  hw/dma/i8257: Split i8257_dma_init() by master/slave
  hw/dma/i8257: Rename i8257_dma_init() -> i8257_dma_init_cascaded()
  hw/dma/i8257: Rename i8257_dma_init(false) -> i8257_dma_init_pc_at()

 include/hw/dma/i8257.h  | 23 +++++++++++++++++++++--
 hw/dma/i82374.c         |  9 ++++++++-
 hw/dma/i8257.c          | 38 ++++++++++++++++++++++++++++----------
 hw/i386/pc.c            |  2 +-
 hw/mips/mips_fulong2e.c |  2 +-
 hw/mips/mips_jazz.c     |  2 +-
 hw/mips/mips_malta.c    |  2 +-
 7 files changed, 61 insertions(+), 17 deletions(-)

-- 
2.16.3