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From: Michael Tretter <m.tretter@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 0/3] firmware: zynqmp-fpga: fix fpga loading with optimized string functions
Date: Wed, 18 Aug 2021 15:35:02 +0200
Message-ID: <20210818133505.582698-1-m.tretter@pengutronix.de> (raw)

If CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS is enabled, loading the FPGA fails
with an abort, because the optimized memcpy can only be used on cached memory.
As the bitstream can be several MBs large, we want to use the optimized
functions. Fix the abort by using a cached mapping with streaming DMA.

Michael Tretter (3):
  firmware: zynqmp-fpga: initialize flags at function start
  firmware: zynqmp-fpga: avoid additional buffer for size argument
  firmware: zynqmp-fpga: do not use DMA coherent memory for bitstream

 drivers/firmware/zynqmp-fpga.c | 54 ++++++++++++++++------------------
 1 file changed, 26 insertions(+), 28 deletions(-)

-- 
2.30.2


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             reply	other threads:[~2021-08-18 13:37 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-18 13:35 Michael Tretter [this message]
2021-08-18 13:35 ` [PATCH 1/3] firmware: zynqmp-fpga: initialize flags at function start Michael Tretter
2021-08-18 13:35 ` [PATCH 2/3] firmware: zynqmp-fpga: avoid additional buffer for size argument Michael Tretter
2021-08-18 13:35 ` [PATCH 3/3] firmware: zynqmp-fpga: do not use DMA coherent memory for bitstream Michael Tretter
2021-08-18 13:47   ` Lucas Stach
2021-08-19  8:14     ` Michael Tretter

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