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f27336e115
of_dma_configure() sets a default ->dma_mask of DMA_BIT_MASK(32), claiming devices can DMA from the full 32bit address space. The mtk-mmc driver does not support access to highmem pages, so it is really limited to the bottom 512M (actually 448M due to 64M of IO space). Setting ->dma_mask to NULL causes mmc_setup_queue() to fall-back to using BLK_BOUNCE_HIGH to tell the block layer to use a bounce-buffer for any highmem pages requiring IO. Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Felix Fietkau <nbd@nbd.name> |
6 years ago | |
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| .. | ||
| base-files | 6 years ago | |
| dts | 6 years ago | |
| files-4.9/drivers | 6 years ago | |
| files-4.14/drivers | 6 years ago | |
| image | 6 years ago | |
| mt76x8 | 6 years ago | |
| mt7620 | 6 years ago | |
| mt7621 | 6 years ago | |
| patches-4.9 | 6 years ago | |
| patches-4.14 | 6 years ago | |
| rt288x | 6 years ago | |
| rt305x | 6 years ago | |
| rt3883 | 6 years ago | |
| Makefile | 7 years ago | |
| modules.mk | 7 years ago | |