Hi, James,
Is it suitable to add this line in arch/mips/include/asm/mmzone.h?
#define pa_to_nid(addr) 0
Huacai
On Wed, Jun 28, 2017 at 10:30 PM, James Hogan <james.hogan@xxxxxxxxxx> wrote:
> Hi Huacai,
>
> On Thu, Jun 22, 2017 at 11:06:49PM +0800, Huacai Chen wrote:
>> @@ -839,9 +860,12 @@ static void r4k_dma_cache_wback_inv(unsigned long addr, unsigned long size)
>>
>> preempt_disable();
>> if (cpu_has_inclusive_pcaches) {
>> - if (size >= scache_size)
>> - r4k_blast_scache();
>> - else
>> + if (size >= scache_size) {
>> + if (current_cpu_type() != CPU_LOONGSON3)
>> + r4k_blast_scache();
>> + else
>> + r4k_blast_scache_node(pa_to_nid(addr));
>> + } else
>> blast_scache_range(addr, addr + size);
>> preempt_enable();
>> __sync();
>> @@ -872,9 +896,12 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size)
>>
>> preempt_disable();
>> if (cpu_has_inclusive_pcaches) {
>> - if (size >= scache_size)
>> - r4k_blast_scache();
>> - else {
>> + if (size >= scache_size) {
>> + if (current_cpu_type() != CPU_LOONGSON3)
>> + r4k_blast_scache();
>> + else
>> + r4k_blast_scache_node(pa_to_nid(addr));
>
> malta_defconfig now fails to build:
>
> arch/mips/mm/c-r4k.c: In function ‘r4k_dma_cache_wback_inv’:
> arch/mips/mm/c-r4k.c:867:5: error: implicit declaration of function ‘pa_to_nid’ [-Werror=implicit-function-declaration]
> r4k_blast_scache_node(pa_to_nid(addr));
> ^
>
> Cheers
> James