Hi,
I have merged this to a 5.8 tree along with "dma-pool: Only allocate from CMA when in the same memory zone" and tested it in various ACPI/DT combinations, particularly on the RPI4. It seems to be working fine.
So thanks for your time and effort clearing this up! Tested-by: Jeremy Linton <jeremy.lin...@arm.com> On 7/9/20 11:19 AM, Nicolas Saenz Julienne wrote:
This is my attempt at fixing one of the regressions we've seen[1] after the introduction of per-zone atomic pools. This combined with "dma-pool: Do not allocate pool memory from CMA"[2] should fix the boot issues on Jeremy's RPi4 setup. [1] https://lkml.org/lkml/2020/7/2/974 [2] https://lkml.org/lkml/2020/7/8/1108 --- Nicolas Saenz Julienne (4): dma-direct: Provide function to check physical memory area validity dma-pool: Get rid of dma_in_atomic_pool() dma-pool: Introduce dma_guess_pool() dma-pool: Make sure atomic pool suits device include/linux/dma-direct.h | 1 + kernel/dma/direct.c | 2 +- kernel/dma/pool.c | 76 +++++++++++++++++++++++++++----------- 3 files changed, 56 insertions(+), 23 deletions(-)
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