Petr Tesarik ad96ce3252 swiotlb: determine potential physical address limit ...

The value returned by default_swiotlb_limit() should be constant, because
it is used to decide whether DMA can be used. To allow allocating memory
pools on the fly, use the maximum possible physical address rather than the
highest address used by the default pool.

For swiotlb_init_remap(), this is either an arch-specific limit used by
memblock_alloc_low(), or the highest directly mapped physical address if
the initialization flags include SWIOTLB_ANY. For swiotlb_init_late(), the
highest address is determined by the GFP flags.

Signed-off-by: Petr Tesarik <petr.tesarik.ext@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

2023-08-01 18:02:24 +02:00

..

coherent.c

dma-mapping: Add dma_release_coherent_memory to DMA API

2022-06-24 09:30:54 -06:00

contiguous.c

dma-contiguous: check for memory region overlap

2023-07-31 17:54:56 +02:00

debug.c

dma-debug: Use %pa to format phys_addr_t

2023-03-30 08:51:52 +09:00

debug.h

dma-debug: teach add_dma_entry() about DMA_ATTR_SKIP_CPU_SYNC

2021-10-18 12:46:45 +02:00

direct.c

swiotlb: if swiotlb is full, fall back to a transient memory pool

2023-08-01 18:02:20 +02:00

direct.h

dma-mapping: force bouncing if the kmalloc() size is not cache-line-aligned

2023-06-19 16:19:23 -07:00

dummy.c

dma-mapping: return error code from dma_dummy_map_sg()

2021-08-09 17:13:06 +02:00

Kconfig

swiotlb: add a flag whether SWIOTLB is allowed to grow

2023-08-01 18:02:17 +02:00

Makefile

dma-mapping: remove CONFIG_DMA_REMAP

2022-03-03 14:00:57 +03:00

map_benchmark.c

dma-mapping: benchmark: remove MODULE_LICENSE in non-modules

2023-04-13 13:13:51 -07:00

mapping.c

dma-mapping: move arch_dma_set_mask() declaration to header

2023-07-31 17:54:28 +02:00

ops_helpers.c

dma-mapping: handle vmalloc addresses in dma_common_{mmap,get_sgtable}

2021-07-16 11:30:26 +02:00

pool.c

mm, treewide: redefine MAX_ORDER sanely

2023-04-05 19:42:46 -07:00

remap.c

dma-remap: use kvmalloc_array/kvfree for larger dma memory remap

2023-06-07 15:06:28 +02:00

swiotlb.c

swiotlb: determine potential physical address limit

2023-08-01 18:02:24 +02:00