On 27 November 2019 at 07:56 am, Mike Rapoport wrote:
Maybe we'll simply force bottom up allocation before calling
swiotlb_init()? Anyway, it's the last memblock allocation.
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 62f74b1b33bd..771e6cf7e2b9 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -286,14 +286,15 @@ void __init mem_init(void)
/*
* book3s is limited to 16 page sizes due to encoding this in
* a 4-bit field for slices.
*/
BUILD_BUG_ON(MMU_PAGE_COUNT > 16);
#ifdef CONFIG_SWIOTLB
+ memblock_set_bottom_up(true);
swiotlb_init(0);
#endif
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
set_max_mapnr(max_pfn);
memblock_free_all();
Hello Mike,
I tested the latest Git kernel with your new patch today. My PCI TV card
works without any problems.
Thanks,
Christian
