[v2] hw/dma: Align SiFive PDMA behavior with real hardware

[PATCH RESEND v2 0/4] hw/dma: Align SiFive PDMA behavior with real hardware

frank.chang@sifive.com posted 4 patches 2 years, 7 months ago

Diff against v1 v2
Download series mbox

Test checkpatch passed

Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/qemu tags/patchew/20210912130553.179501-1-frank.chang@sifive.com

Maintainers: Palmer Dabbelt <palmer@dabbelt.com>, Bin Meng <bin.meng@windriver.com>, Alistair Francis <Alistair.Francis@wdc.com>

hw/dma/sifive_pdma.c | 54 +++++++++++++++++++++++++++++++++++---------
1 file changed, 43 insertions(+), 11 deletions(-)

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[PATCH RESEND v2 0/4] hw/dma: Align SiFive PDMA behavior with real hardware

Posted by frank.chang@sifive.com 2 years, 7 months ago

From: Frank Chang <frank.chang@sifive.com>

Current QEMU PDMA doesn't align with real PDMA's behavior. This would
result in Linux dmatest failed. This patchest aligns with real PDMA's
behavior we tested on the real board. The golden results are performed
in U-Boot on the Unmatched board with PDMA supported.

Changelog:

v2:
  * Add comment to describe document errors.

Frank Chang (3):
  hw/dma: sifive_pdma: reset Next* registers when Control.claim is set
  hw/dma: sifive_pdma: claim bit must be set before DMA transactions
  hw/dma: sifive_pdma: don't set Control.error if 0 bytes to transfer

Green Wan (1):
  hw/dma: sifive_pdma: allow non-multiple transaction size transactions

 hw/dma/sifive_pdma.c | 54 +++++++++++++++++++++++++++++++++++---------
 1 file changed, 43 insertions(+), 11 deletions(-)

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2.25.1