diff options
| author | Nylon Chen <nylon7@andestech.com> | 2018-11-08 19:28:15 +0800 |
|---|---|---|
| committer | Greentime Hu <greentime@andestech.com> | 2018-11-22 18:13:51 +0800 |
| commit | e2f3f8b4a497d26bdcd55a53246ec2e613ae0fd4 (patch) | |
| tree | c6cbc184ba802977d2f2bfa44e238e697b4455ac /arch/nds32/include/asm | |
| parent | a5234068e6dc18ae5300d678fbf3e129d9b93f78 (diff) | |
nds32: support hardware prefetcher
We add a config for user to enable or disable this feature.
It can be used to control the hardware prefetch function.
Signed-off-by: Nylon Chen <nylon7@andestech.com>
Acked-by: Greentime Hu <greentime@andestech.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>
Diffstat (limited to 'arch/nds32/include/asm')
| -rw-r--r-- | arch/nds32/include/asm/bitfield.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/nds32/include/asm/bitfield.h b/arch/nds32/include/asm/bitfield.h index c1619730192a..7414fcbbab4e 100644 --- a/arch/nds32/include/asm/bitfield.h +++ b/arch/nds32/include/asm/bitfield.h @@ -740,14 +740,20 @@ #define N13MISC_CTL_offRTP 1 /* Disable Return Target Predictor */ #define N13MISC_CTL_offPTEPF 2 /* Disable HPTWK L2 PTE pefetch */ #define N13MISC_CTL_offSP_SHADOW_EN 4 /* Enable shadow stack pointers */ +#define MISC_CTL_offHWPRE 11 /* Enable HardWare PREFETCH */ /* bit 6, 9:31 reserved */ #define N13MISC_CTL_makBTB ( 0x1 << N13MISC_CTL_offBTB ) #define N13MISC_CTL_makRTP ( 0x1 << N13MISC_CTL_offRTP ) #define N13MISC_CTL_makPTEPF ( 0x1 << N13MISC_CTL_offPTEPF ) #define N13MISC_CTL_makSP_SHADOW_EN ( 0x1 << N13MISC_CTL_offSP_SHADOW_EN ) +#define MISC_CTL_makHWPRE_EN ( 0x1 << MISC_CTL_offHWPRE ) +#ifdef CONFIG_HW_PRE +#define MISC_init (N13MISC_CTL_makBTB|N13MISC_CTL_makRTP|N13MISC_CTL_makSP_SHADOW_EN|MISC_CTL_makHWPRE_EN) +#else #define MISC_init (N13MISC_CTL_makBTB|N13MISC_CTL_makRTP|N13MISC_CTL_makSP_SHADOW_EN) +#endif /****************************************************************************** * PRUSR_ACC_CTL (Privileged Resource User Access Control Registers) |