Commit d0fa0640 authored by Martin Jocic's avatar Martin Jocic Committed by Marc Kleine-Budde

can: kvaser_pciefd: Enable 64-bit DMA addressing

Enabling 64-bit addressing for DMA buffers will prevent issues
on some memory constrained platforms like e.g. Raspberry Pi 5,
where the driver won't load because it cannot allocate enough
continuous memory in the default 32-bit memory address range.
Signed-off-by: default avatarMartin Jocic <martin.jocic@kvaser.com>
Link: https://patch.msgid.link/d7340f78e3db305bfeeb8229d2dd1c9077e10b92.1725875278.git.martin.jocic@kvaser.comSigned-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
parent 75b31895
......@@ -1104,6 +1104,9 @@ static int kvaser_pciefd_setup_dma(struct kvaser_pciefd *pcie)
/* Disable the DMA */
iowrite32(0, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_CTRL_REG);
dma_set_mask_and_coherent(&pcie->pci->dev, DMA_BIT_MASK(64));
for (i = 0; i < KVASER_PCIEFD_DMA_COUNT; i++) {
pcie->dma_data[i] = dmam_alloc_coherent(&pcie->pci->dev,
KVASER_PCIEFD_DMA_SIZE,
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment