[OpenBIOS] [PATCH 00/15] Implement dma-* words

[Mark Cave-Ayland]

On 21/05/18 22:33, Mark Cave-Ayland wrote:

> This patchset is something I've been working on for a while and started
> off with the aim of getting rid of the "dma-alloc" console warnings
> whilst booting *BSD images on PPC, but ended up as a full implementation
> for SPARC32/SPARC64 and PPC.
> 
> The patchset is fairly straightfoward: the first few patches rework the
> SPARC32 DVMA functions to make them usable from Forth, whilst patch 8
> adds a missing D-cache flush for PPC which could certainly do with another
> set of eyes.
> 
> The remainder of the patches add PPC and SPARC64 support before adding
> in the complete "dma-*" $call-parent chains to enable devices to call
> the DMA functions as indicated in the IEEE-1275 specification and
> various FCode examples found around the net.
> 
> Finally the last 2 patches switch the esp SCSI driver over to use the
> IEEE-1275 Forth words instead of calling the low-level C functions
> directly.
> 
> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland at ilande.co.uk>
> 
> 
> Mark Cave-Ayland (15):
>    dma: add defers for the dma-* words
>    SPARC32: rename dvma_alloc()'s ba variable to iova
>    SPARC32: allocate contiguous physical memory for DVMA
>    SPARC32: implement dvma_map_in() for DMA IOVA to phys translation
>    SPARC32: move pgtsrmmu.h from arch/sparc32 to include/arch/sparc32
>    SPARC32: implement dvma_sync() function for synchronising DMA memory
>    SPARC32: implement dma-* words
>    PPC: add flush_dcache_range() to start.S
>    PPC: implement dma-* words
>    SPARC64: implement dma-* words
>    macio: add missing REGISTER_NODE for New World macio devices
>    pci: add dma-* call-parent chain to all PCI devices and bridges
>    sbus: add dma-* call-parent chain to all PCI devices and bridges
>    esp: switch creation of esp device over to use new-device
>    esp: switch over to using dma-alloc/dma-map-in
> 
>   arch/ppc/qemu/init.c                      |  35 +++++++
>   arch/ppc/qemu/kernel.h                    |   1 +
>   arch/ppc/qemu/start.S                     |  21 ++++
>   arch/ppc/qemu/tree.fs                     |  40 ++++++++
>   arch/sparc32/lib.c                        |   2 +-
>   arch/sparc32/ofmem_sparc32.c              |   2 +-
>   arch/sparc32/openbios.c                   |  47 ++++++++-
>   arch/sparc32/tree.fs                      |  56 +++++++++++
>   arch/sparc64/openbios.c                   |  40 ++++++++
>   arch/sparc64/tree.fs                      |  47 +++++++++
>   drivers/esp.c                             | 159 ++++++++++++++++++++----------
>   drivers/ide.c                             |  40 ++++++++
>   drivers/iommu.c                           |  95 +++++++++++++++---
>   drivers/macio.c                           |  36 +++++++
>   drivers/pci.c                             |  40 ++++++++
>   forth/device/other.fs                     |   8 +-
>   forth/device/table.fs                     |   2 +-
>   forth/util/util.fs                        |   9 ++
>   {arch => include/arch}/sparc32/pgtsrmmu.h |   0
>   include/drivers/drivers.h                 |   4 +-
>   packages/disk-label.fs                    |  39 ++++++++
>   21 files changed, 646 insertions(+), 77 deletions(-)
>   rename {arch => include/arch}/sparc32/pgtsrmmu.h (100%)

No further comments, and this has passed all my local boot tests across 
SPARC32, SPARC64 and PPC so I've pushed it to master.


ATB,

Mark.