diff options
| author | neil.shi <neil.shi@quectel.com> | 2023-05-23 17:39:45 +0800 |
|---|---|---|
| committer | Pierre-Loup A. Griffais <pgriffais@valvesoftware.com> | 2023-11-02 16:05:17 -0700 |
| commit | cf0e9db9d0ebae11545c0403e9f216ffc94fa6a3 (patch) | |
| tree | a19e4a313ea293f50d332c4c1a8c5a1c560d2491 /arch | |
| parent | 44f76134707e8773f9ea2c86e0e01d8347fd3e43 (diff) | |
| download | linux-cf0e9db9d0ebae11545c0403e9f216ffc94fa6a3.tar.gz | |
wifi: ath11k: reserve CMA memory space under 4G
When bringing up napier, we're seeing MHI SYS_ERR. By debugging, reason should be host is sending FW memory physical address over 4G space as a response to REQUEST_MEM QMI event. Fix is to reserve CMA under 4G so that FW memory allocated is under 4G. This solves MHI SYS_ERR and napier is able to scan/connect/ping. Signed-off-by: neil.shi <neil.shi@quectel.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/setup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 892609cde4a2..b38bec4142e2 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1234,7 +1234,7 @@ void __init setup_arch(char **cmdline_p) early_acpi_boot_init(); initmem_init(); - dma_contiguous_reserve(max_pfn_mapped << PAGE_SHIFT); + dma_contiguous_reserve(max_low_pfn_mapped << PAGE_SHIFT); if (boot_cpu_has(X86_FEATURE_GBPAGES)) hugetlb_cma_reserve(PUD_SHIFT - PAGE_SHIFT); |