From e4e133f3df3812f1f441b622a1ff5a086eb18c3e Mon Sep 17 00:00:00 2001 From: lxowalle Date: Tue, 11 Mar 2025 18:02:41 +0800 Subject: [PATCH] * fix audio bug --- linux_5.10/kernel/dma/pool.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/linux_5.10/kernel/dma/pool.c b/linux_5.10/kernel/dma/pool.c index d4637f722..634b00193 100644 --- a/linux_5.10/kernel/dma/pool.c +++ b/linux_5.10/kernel/dma/pool.c @@ -20,6 +20,10 @@ static unsigned long pool_size_dma32; static struct gen_pool *atomic_pool_kernel __ro_after_init; static unsigned long pool_size_kernel; +#ifndef DEFAULT_DMA_COHERENT_POOL_SIZE +#define DEFAULT_DMA_COHERENT_POOL_SIZE SZ_1M +#endif + /* Size can be defined by the coherent_pool command line */ static size_t atomic_pool_size; @@ -198,7 +202,7 @@ static int __init dma_atomic_pool_init(void) if (!atomic_pool_size) { unsigned long pages = totalram_pages() / (SZ_1G / SZ_128K); pages = min_t(unsigned long, pages, MAX_ORDER_NR_PAGES); - atomic_pool_size = max_t(size_t, pages << PAGE_SHIFT, SZ_128K); + atomic_pool_size = max_t(size_t, pages << PAGE_SHIFT, DEFAULT_DMA_COHERENT_POOL_SIZE); } INIT_WORK(&atomic_pool_work, atomic_pool_work_fn);