38 lines
789 B
C++
38 lines
789 B
C++
#pragma once
|
|
|
|
#if defined(__powerpc64__)
|
|
# define SNMALLOC_VA_BITS_64
|
|
#else
|
|
# define SNMALLOC_VA_BITS_32
|
|
#endif
|
|
|
|
namespace snmalloc
|
|
{
|
|
/**
|
|
* ARM-specific architecture abstraction layer.
|
|
*/
|
|
class AAL_PowerPC
|
|
{
|
|
public:
|
|
/**
|
|
* Bitmap of AalFeature flags
|
|
*/
|
|
static constexpr uint64_t aal_features = IntegerPointers;
|
|
|
|
static constexpr enum AalName aal_name = PowerPC;
|
|
|
|
static constexpr size_t smallest_page_size = 0x1000;
|
|
|
|
/**
|
|
* On pipelined processors, notify the core that we are in a spin loop and
|
|
* that speculative execution past this point may not be a performance gain.
|
|
*/
|
|
static inline void pause()
|
|
{
|
|
__asm__ volatile("or 27,27,27"); // "yield"
|
|
}
|
|
};
|
|
|
|
using AAL_Arch = AAL_PowerPC;
|
|
} // namespace snmalloc
|