| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * arch/arm/include/asm/vfp.h |
| * |
| * VFP register definitions. |
| * First, the standard VFP set. |
| */ |
| |
| #ifndef __ASM_VFP_H |
| #define __ASM_VFP_H |
| |
| #define FPSID cr0 |
| #define FPSCR cr1 |
| #define MVFR1 cr6 |
| #define MVFR0 cr7 |
| #define FPEXC cr8 |
| #define FPINST cr9 |
| #define FPINST2 cr10 |
| |
| /* FPSID bits */ |
| #define FPSID_IMPLEMENTER_BIT (24) |
| #define FPSID_IMPLEMENTER_MASK (0xff << FPSID_IMPLEMENTER_BIT) |
| #define FPSID_SOFTWARE (1<<23) |
| #define FPSID_FORMAT_BIT (21) |
| #define FPSID_FORMAT_MASK (0x3 << FPSID_FORMAT_BIT) |
| #define FPSID_NODOUBLE (1<<20) |
| #define FPSID_ARCH_BIT (16) |
| #define FPSID_ARCH_MASK (0xF << FPSID_ARCH_BIT) |
| #define FPSID_CPUID_ARCH_MASK (0x7F << FPSID_ARCH_BIT) |
| #define FPSID_PART_BIT (8) |
| #define FPSID_PART_MASK (0xFF << FPSID_PART_BIT) |
| #define FPSID_VARIANT_BIT (4) |
| #define FPSID_VARIANT_MASK (0xF << FPSID_VARIANT_BIT) |
| #define FPSID_REV_BIT (0) |
| #define FPSID_REV_MASK (0xF << FPSID_REV_BIT) |
| |
| /* FPEXC bits */ |
| #define FPEXC_EX (1 << 31) |
| #define FPEXC_EN (1 << 30) |
| #define FPEXC_DEX (1 << 29) |
| #define FPEXC_FP2V (1 << 28) |
| #define FPEXC_VV (1 << 27) |
| #define FPEXC_TFV (1 << 26) |
| #define FPEXC_LENGTH_BIT (8) |
| #define FPEXC_LENGTH_MASK (7 << FPEXC_LENGTH_BIT) |
| #define FPEXC_IDF (1 << 7) |
| #define FPEXC_IXF (1 << 4) |
| #define FPEXC_UFF (1 << 3) |
| #define FPEXC_OFF (1 << 2) |
| #define FPEXC_DZF (1 << 1) |
| #define FPEXC_IOF (1 << 0) |
| #define FPEXC_TRAP_MASK (FPEXC_IDF|FPEXC_IXF|FPEXC_UFF|FPEXC_OFF|FPEXC_DZF|FPEXC_IOF) |
| |
| /* FPSCR bits */ |
| #define FPSCR_DEFAULT_NAN (1<<25) |
| #define FPSCR_FLUSHTOZERO (1<<24) |
| #define FPSCR_ROUND_NEAREST (0<<22) |
| #define FPSCR_ROUND_PLUSINF (1<<22) |
| #define FPSCR_ROUND_MINUSINF (2<<22) |
| #define FPSCR_ROUND_TOZERO (3<<22) |
| #define FPSCR_RMODE_BIT (22) |
| #define FPSCR_RMODE_MASK (3 << FPSCR_RMODE_BIT) |
| #define FPSCR_STRIDE_BIT (20) |
| #define FPSCR_STRIDE_MASK (3 << FPSCR_STRIDE_BIT) |
| #define FPSCR_LENGTH_BIT (16) |
| #define FPSCR_LENGTH_MASK (7 << FPSCR_LENGTH_BIT) |
| #define FPSCR_IOE (1<<8) |
| #define FPSCR_DZE (1<<9) |
| #define FPSCR_OFE (1<<10) |
| #define FPSCR_UFE (1<<11) |
| #define FPSCR_IXE (1<<12) |
| #define FPSCR_IDE (1<<15) |
| #define FPSCR_IOC (1<<0) |
| #define FPSCR_DZC (1<<1) |
| #define FPSCR_OFC (1<<2) |
| #define FPSCR_UFC (1<<3) |
| #define FPSCR_IXC (1<<4) |
| #define FPSCR_IDC (1<<7) |
| |
| /* MVFR0 bits */ |
| #define MVFR0_A_SIMD_BIT (0) |
| #define MVFR0_A_SIMD_MASK (0xf << MVFR0_A_SIMD_BIT) |
| #define MVFR0_SP_BIT (4) |
| #define MVFR0_SP_MASK (0xf << MVFR0_SP_BIT) |
| #define MVFR0_DP_BIT (8) |
| #define MVFR0_DP_MASK (0xf << MVFR0_DP_BIT) |
| |
| /* Bit patterns for decoding the packaged operation descriptors */ |
| #define VFPOPDESC_LENGTH_BIT (9) |
| #define VFPOPDESC_LENGTH_MASK (0x07 << VFPOPDESC_LENGTH_BIT) |
| #define VFPOPDESC_UNUSED_BIT (24) |
| #define VFPOPDESC_UNUSED_MASK (0xFF << VFPOPDESC_UNUSED_BIT) |
| #define VFPOPDESC_OPDESC_MASK (~(VFPOPDESC_LENGTH_MASK | VFPOPDESC_UNUSED_MASK)) |
| |
| #ifndef __ASSEMBLY__ |
| void vfp_disable(void); |
| #endif |
| |
| #endif /* __ASM_VFP_H */ |
