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authorWANG Xuerui <git@xen0n.name>2020-05-03 18:33:03 +0800
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>2020-05-17 10:26:37 +0200
commitfdec207e466d57e658ca18755ff990a18e85d5ae (patch)
tree07181955d5b8b160d02b741f99087876d4c7c164 /arch/mips
parentde541d60157a1716c0e2f04971fd2dd97ade7b7e (diff)
downloadlinux-fdec207e466d57e658ca18755ff990a18e85d5ae.tar.bz2
MIPS: Loongson64: define offsets and known revisions for some CPUCFG features
Add the constants for easier and maintainable composition of CPUCFG values. Signed-off-by: WANG Xuerui <git@xen0n.name> Cc: Huacai Chen <chenhc@lemote.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/include/asm/mach-loongson64/loongson_regs.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-loongson64/loongson_regs.h b/arch/mips/include/asm/mach-loongson64/loongson_regs.h
index 07aab3c5b22c..83dbb9fdf9c2 100644
--- a/arch/mips/include/asm/mach-loongson64/loongson_regs.h
+++ b/arch/mips/include/asm/mach-loongson64/loongson_regs.h
@@ -67,6 +67,8 @@ static inline u32 read_cpucfg(u32 reg)
#define LOONGSON_CFG1_SFBP BIT(29)
#define LOONGSON_CFG1_CDMAP BIT(30)
+#define LOONGSON_CFG1_FPREV_OFFSET 1
+
#define LOONGSON_CFG2 0x2
#define LOONGSON_CFG2_LEXT1 BIT(0)
#define LOONGSON_CFG2_LEXT2 BIT(1)
@@ -90,6 +92,13 @@ static inline u32 read_cpucfg(u32 reg)
#define LOONGSON_CFG2_LCSRP BIT(27)
#define LOONGSON_CFG2_LDISBLIKELY BIT(28)
+#define LOONGSON_CFG2_LPMREV_OFFSET 9
+#define LOONGSON_CFG2_LPM_REV1 (1 << LOONGSON_CFG2_LPMREV_OFFSET)
+#define LOONGSON_CFG2_LPM_REV2 (2 << LOONGSON_CFG2_LPMREV_OFFSET)
+#define LOONGSON_CFG2_LVZREV_OFFSET 16
+#define LOONGSON_CFG2_LVZ_REV1 (1 << LOONGSON_CFG2_LVZREV_OFFSET)
+#define LOONGSON_CFG2_LVZ_REV2 (2 << LOONGSON_CFG2_LVZREV_OFFSET)
+
#define LOONGSON_CFG3 0x3
#define LOONGSON_CFG3_LCAMP BIT(0)
#define LOONGSON_CFG3_LCAMREV GENMASK(3, 1)
@@ -97,6 +106,16 @@ static inline u32 read_cpucfg(u32 reg)
#define LOONGSON_CFG3_LCAMKW GENMASK(19, 12)
#define LOONGSON_CFG3_LCAMVW GENMASK(27, 20)
+#define LOONGSON_CFG3_LCAMREV_OFFSET 1
+#define LOONGSON_CFG3_LCAM_REV1 (1 << LOONGSON_CFG3_LCAMREV_OFFSET)
+#define LOONGSON_CFG3_LCAM_REV2 (2 << LOONGSON_CFG3_LCAMREV_OFFSET)
+#define LOONGSON_CFG3_LCAMNUM_OFFSET 4
+#define LOONGSON_CFG3_LCAMNUM_REV1 (0x3f << LOONGSON_CFG3_LCAMNUM_OFFSET)
+#define LOONGSON_CFG3_LCAMKW_OFFSET 12
+#define LOONGSON_CFG3_LCAMKW_REV1 (0x27 << LOONGSON_CFG3_LCAMKW_OFFSET)
+#define LOONGSON_CFG3_LCAMVW_OFFSET 20
+#define LOONGSON_CFG3_LCAMVW_REV1 (0x3f << LOONGSON_CFG3_LCAMVW_OFFSET)
+
#define LOONGSON_CFG4 0x4
#define LOONGSON_CFG4_CCFREQ GENMASK(31, 0)