eessppeelllloo/veejay
1
0
Fork 0
mirror of https://github.com/game-stop/veejay.git synced 2025-12-19 14:19:58 +01:00
Code Issues Packages Projects Releases Wiki Activity

Add cache line size detection on arm

Browse Source
This commit is contained in:
veejay
2023-09-06 22:03:17 +02:00
parent 4e2035b24e
commit a706023bbf
1 changed files with 15 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
veejay-current/veejay-core/libvjmem/vj-x86.c
View File

@@ -71,6 +71,17 @@ static int has_cpuid(void)
return 0; return 0;
} }
#ifdef HAVE_ARM
static int get_cache_line_size() {
int cache_line_size;
asm volatile("mrs %0, ctr_el0" : "=r"(cache_line_size));
cache_line_size &= 0xFF;
return cache_line_size;
}
#endif
#if defined(ARCH_X86_64) || defined(ARCH_X86)
// copied from Mplayer (want to have cache line size detection ;) ) // copied from Mplayer (want to have cache line size detection ;) )
static void do_cpuid(unsigned int ax, unsigned int *p) static void do_cpuid(unsigned int ax, unsigned int *p)
{ {
@@ -110,6 +121,7 @@ static int get_cache_line_size()
} }
return ret; return ret;
} }
#endif
int cpu_cache_size() int cpu_cache_size()
{ {
@@ -128,6 +140,9 @@ void vj_mem_init(void)
#endif #endif
#ifdef ARCH_X86_64 #ifdef ARCH_X86_64
CACHE_LINE_SIZE = get_cache_line_size(); CACHE_LINE_SIZE = get_cache_line_size();
#endif
#if defined (HAVE_ARM)
CACHE_LINE_SIZE = get_cache_line_size();
#endif #endif
if(MEM_ALIGNMENT_SIZE == 0) if(MEM_ALIGNMENT_SIZE == 0)
MEM_ALIGNMENT_SIZE = getpagesize(); MEM_ALIGNMENT_SIZE = getpagesize();