| /* | |
| * This file is subject to the terms and conditions of the GNU General Public | |
| * License. See the file "COPYING" in the main directory of this archive | |
| * for more details. | |
| * | |
| * Copyright (C) 2003, 2004 Ralf Baechle | |
| * Copyright (C) 2004 Maciej W. Rozycki | |
| */ | |
| #ifndef __ASM_CPU_FEATURES_H | |
| #define __ASM_CPU_FEATURES_H | |
| #include <asm/cpu.h> | |
| #include <asm/cpu-info.h> | |
| #include <cpu-feature-overrides.h> | |
| /* | |
| * SMP assumption: Options of CPU 0 are a superset of all processors. | |
| * This is true for all known MIPS systems. | |
| */ | |
| #ifndef cpu_has_tlb | |
| #define cpu_has_tlb (cpu_data[0].options & MIPS_CPU_TLB) | |
| #endif | |
| #ifndef cpu_has_ftlb | |
| #define cpu_has_ftlb (cpu_data[0].options & MIPS_CPU_FTLB) | |
| #endif | |
| #ifndef cpu_has_tlbinv | |
| #define cpu_has_tlbinv (cpu_data[0].options & MIPS_CPU_TLBINV) | |
| #endif | |
| #ifndef cpu_has_segments | |
| #define cpu_has_segments (cpu_data[0].options & MIPS_CPU_SEGMENTS) | |
| #endif | |
| #ifndef cpu_has_eva | |
| #define cpu_has_eva (cpu_data[0].options & MIPS_CPU_EVA) | |
| #endif | |
| #ifndef cpu_has_htw | |
| #define cpu_has_htw (cpu_data[0].options & MIPS_CPU_HTW) | |
| #endif | |
| #ifndef cpu_has_ldpte | |
| #define cpu_has_ldpte (cpu_data[0].options & MIPS_CPU_LDPTE) | |
| #endif | |
| #ifndef cpu_has_rixiex | |
| #define cpu_has_rixiex (cpu_data[0].options & MIPS_CPU_RIXIEX) | |
| #endif | |
| #ifndef cpu_has_maar | |
| #define cpu_has_maar (cpu_data[0].options & MIPS_CPU_MAAR) | |
| #endif | |
| #ifndef cpu_has_rw_llb | |
| #define cpu_has_rw_llb (cpu_data[0].options & MIPS_CPU_RW_LLB) | |
| #endif | |
| /* | |
| * For the moment we don't consider R6000 and R8000 so we can assume that | |
| * anything that doesn't support R4000-style exceptions and interrupts is | |
| * R3000-like. Users should still treat these two macro definitions as | |
| * opaque. | |
| */ | |
| #ifndef cpu_has_3kex | |
| #define cpu_has_3kex (!cpu_has_4kex) | |
| #endif | |
| #ifndef cpu_has_4kex | |
| #define cpu_has_4kex (cpu_data[0].options & MIPS_CPU_4KEX) | |
| #endif | |
| #ifndef cpu_has_3k_cache | |
| #define cpu_has_3k_cache (cpu_data[0].options & MIPS_CPU_3K_CACHE) | |
| #endif | |
| #define cpu_has_6k_cache 0 | |
| #define cpu_has_8k_cache 0 | |
| #ifndef cpu_has_4k_cache | |
| #define cpu_has_4k_cache (cpu_data[0].options & MIPS_CPU_4K_CACHE) | |
| #endif | |
| #ifndef cpu_has_tx39_cache | |
| #define cpu_has_tx39_cache (cpu_data[0].options & MIPS_CPU_TX39_CACHE) | |
| #endif | |
| #ifndef cpu_has_octeon_cache | |
| #define cpu_has_octeon_cache 0 | |
| #endif | |
| /* Don't override `cpu_has_fpu' to 1 or the "nofpu" option won't work. */ | |
| #ifndef cpu_has_fpu | |
| #define cpu_has_fpu (current_cpu_data.options & MIPS_CPU_FPU) | |
| #define raw_cpu_has_fpu (raw_current_cpu_data.options & MIPS_CPU_FPU) | |
| #else | |
| #define raw_cpu_has_fpu cpu_has_fpu | |
| #endif | |
| #ifndef cpu_has_32fpr | |
| #define cpu_has_32fpr (cpu_data[0].options & MIPS_CPU_32FPR) | |
| #endif | |
| #ifndef cpu_has_counter | |
| #define cpu_has_counter (cpu_data[0].options & MIPS_CPU_COUNTER) | |
| #endif | |
| #ifndef cpu_has_watch | |
| #define cpu_has_watch (cpu_data[0].options & MIPS_CPU_WATCH) | |
| #endif | |
| #ifndef cpu_has_divec | |
| #define cpu_has_divec (cpu_data[0].options & MIPS_CPU_DIVEC) | |
| #endif | |
| #ifndef cpu_has_vce | |
| #define cpu_has_vce (cpu_data[0].options & MIPS_CPU_VCE) | |
| #endif | |
| #ifndef cpu_has_cache_cdex_p | |
| #define cpu_has_cache_cdex_p (cpu_data[0].options & MIPS_CPU_CACHE_CDEX_P) | |
| #endif | |
| #ifndef cpu_has_cache_cdex_s | |
| #define cpu_has_cache_cdex_s (cpu_data[0].options & MIPS_CPU_CACHE_CDEX_S) | |
| #endif | |
| #ifndef cpu_has_prefetch | |
| #define cpu_has_prefetch (cpu_data[0].options & MIPS_CPU_PREFETCH) | |
| #endif | |
| #ifndef cpu_has_mcheck | |
| #define cpu_has_mcheck (cpu_data[0].options & MIPS_CPU_MCHECK) | |
| #endif | |
| #ifndef cpu_has_ejtag | |
| #define cpu_has_ejtag (cpu_data[0].options & MIPS_CPU_EJTAG) | |
| #endif | |
| #ifndef cpu_has_llsc | |
| #define cpu_has_llsc (cpu_data[0].options & MIPS_CPU_LLSC) | |
| #endif | |
| #ifndef cpu_has_bp_ghist | |
| #define cpu_has_bp_ghist (cpu_data[0].options & MIPS_CPU_BP_GHIST) | |
| #endif | |
| #ifndef kernel_uses_llsc | |
| #define kernel_uses_llsc cpu_has_llsc | |
| #endif | |
| #ifndef cpu_has_guestctl0ext | |
| #define cpu_has_guestctl0ext (cpu_data[0].options & MIPS_CPU_GUESTCTL0EXT) | |
| #endif | |
| #ifndef cpu_has_guestctl1 | |
| #define cpu_has_guestctl1 (cpu_data[0].options & MIPS_CPU_GUESTCTL1) | |
| #endif | |
| #ifndef cpu_has_guestctl2 | |
| #define cpu_has_guestctl2 (cpu_data[0].options & MIPS_CPU_GUESTCTL2) | |
| #endif | |
| #ifndef cpu_has_guestid | |
| #define cpu_has_guestid (cpu_data[0].options & MIPS_CPU_GUESTID) | |
| #endif | |
| #ifndef cpu_has_drg | |
| #define cpu_has_drg (cpu_data[0].options & MIPS_CPU_DRG) | |
| #endif | |
| #ifndef cpu_has_mips16 | |
| #define cpu_has_mips16 (cpu_data[0].ases & MIPS_ASE_MIPS16) | |
| #endif | |
| #ifndef cpu_has_mips16e2 | |
| #define cpu_has_mips16e2 (cpu_data[0].ases & MIPS_ASE_MIPS16E2) | |
| #endif | |
| #ifndef cpu_has_mdmx | |
| #define cpu_has_mdmx (cpu_data[0].ases & MIPS_ASE_MDMX) | |
| #endif | |
| #ifndef cpu_has_mips3d | |
| #define cpu_has_mips3d (cpu_data[0].ases & MIPS_ASE_MIPS3D) | |
| #endif | |
| #ifndef cpu_has_smartmips | |
| #define cpu_has_smartmips (cpu_data[0].ases & MIPS_ASE_SMARTMIPS) | |
| #endif | |
| #ifndef cpu_has_rixi | |
| #define cpu_has_rixi (cpu_data[0].options & MIPS_CPU_RIXI) | |
| #endif | |
| #ifndef cpu_has_mmips | |
| # ifdef CONFIG_SYS_SUPPORTS_MICROMIPS | |
| # define cpu_has_mmips (cpu_data[0].options & MIPS_CPU_MICROMIPS) | |
| # else | |
| # define cpu_has_mmips 0 | |
| # endif | |
| #endif | |
| #ifndef cpu_has_lpa | |
| #define cpu_has_lpa (cpu_data[0].options & MIPS_CPU_LPA) | |
| #endif | |
| #ifndef cpu_has_mvh | |
| #define cpu_has_mvh (cpu_data[0].options & MIPS_CPU_MVH) | |
| #endif | |
| #ifndef cpu_has_xpa | |
| #define cpu_has_xpa (cpu_has_lpa && cpu_has_mvh) | |
| #endif | |
| #ifndef cpu_has_vtag_icache | |
| #define cpu_has_vtag_icache (cpu_data[0].icache.flags & MIPS_CACHE_VTAG) | |
| #endif | |
| #ifndef cpu_has_dc_aliases | |
| #define cpu_has_dc_aliases (cpu_data[0].dcache.flags & MIPS_CACHE_ALIASES) | |
| #endif | |
| #ifndef cpu_has_ic_fills_f_dc | |
| #define cpu_has_ic_fills_f_dc (cpu_data[0].icache.flags & MIPS_CACHE_IC_F_DC) | |
| #endif | |
| #ifndef cpu_has_pindexed_dcache | |
| #define cpu_has_pindexed_dcache (cpu_data[0].dcache.flags & MIPS_CACHE_PINDEX) | |
| #endif | |
| #ifndef cpu_has_local_ebase | |
| #define cpu_has_local_ebase 1 | |
| #endif | |
| /* | |
| * I-Cache snoops remote store. This only matters on SMP. Some multiprocessors | |
| * such as the R10000 have I-Caches that snoop local stores; the embedded ones | |
| * don't. For maintaining I-cache coherency this means we need to flush the | |
| * D-cache all the way back to whever the I-cache does refills from, so the | |
| * I-cache has a chance to see the new data at all. Then we have to flush the | |
| * I-cache also. | |
| * Note we may have been rescheduled and may no longer be running on the CPU | |
| * that did the store so we can't optimize this into only doing the flush on | |
| * the local CPU. | |
| */ | |
| #ifndef cpu_icache_snoops_remote_store | |
| #ifdef CONFIG_SMP | |
| #define cpu_icache_snoops_remote_store (cpu_data[0].icache.flags & MIPS_IC_SNOOPS_REMOTE) | |
| #else | |
| #define cpu_icache_snoops_remote_store 1 | |
| #endif | |
| #endif | |
| /* __builtin_constant_p(cpu_has_mips_r) && cpu_has_mips_r */ | |
| #if !((defined(cpu_has_mips32r1) && cpu_has_mips32r1) || \ | |
| (defined(cpu_has_mips32r2) && cpu_has_mips32r2) || \ | |
| (defined(cpu_has_mips32r6) && cpu_has_mips32r6) || \ | |
| (defined(cpu_has_mips64r1) && cpu_has_mips64r1) || \ | |
| (defined(cpu_has_mips64r2) && cpu_has_mips64r2) || \ | |
| (defined(cpu_has_mips64r6) && cpu_has_mips64r6)) | |
| #define CPU_NO_EFFICIENT_FFS 1 | |
| #endif | |
| #ifndef cpu_has_mips_1 | |
| # define cpu_has_mips_1 (!cpu_has_mips_r6) | |
| #endif | |
| #ifndef cpu_has_mips_2 | |
| # define cpu_has_mips_2 (cpu_data[0].isa_level & MIPS_CPU_ISA_II) | |
| #endif | |
| #ifndef cpu_has_mips_3 | |
| # define cpu_has_mips_3 (cpu_data[0].isa_level & MIPS_CPU_ISA_III) | |
| #endif | |
| #ifndef cpu_has_mips_4 | |
| # define cpu_has_mips_4 (cpu_data[0].isa_level & MIPS_CPU_ISA_IV) | |
| #endif | |
| #ifndef cpu_has_mips_5 | |
| # define cpu_has_mips_5 (cpu_data[0].isa_level & MIPS_CPU_ISA_V) | |
| #endif | |
| #ifndef cpu_has_mips32r1 | |
| # define cpu_has_mips32r1 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R1) | |
| #endif | |
| #ifndef cpu_has_mips32r2 | |
| # define cpu_has_mips32r2 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R2) | |
| #endif | |
| #ifndef cpu_has_mips32r6 | |
| # define cpu_has_mips32r6 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R6) | |
| #endif | |
| #ifndef cpu_has_mips64r1 | |
| # define cpu_has_mips64r1 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R1) | |
| #endif | |
| #ifndef cpu_has_mips64r2 | |
| # define cpu_has_mips64r2 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R2) | |
| #endif | |
| #ifndef cpu_has_mips64r6 | |
| # define cpu_has_mips64r6 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R6) | |
| #endif | |
| /* | |
| * Shortcuts ... | |
| */ | |
| #define cpu_has_mips_2_3_4_5 (cpu_has_mips_2 | cpu_has_mips_3_4_5) | |
| #define cpu_has_mips_3_4_5 (cpu_has_mips_3 | cpu_has_mips_4_5) | |
| #define cpu_has_mips_4_5 (cpu_has_mips_4 | cpu_has_mips_5) | |
| #define cpu_has_mips_2_3_4_5_r (cpu_has_mips_2 | cpu_has_mips_3_4_5_r) | |
| #define cpu_has_mips_3_4_5_r (cpu_has_mips_3 | cpu_has_mips_4_5_r) | |
| #define cpu_has_mips_4_5_r (cpu_has_mips_4 | cpu_has_mips_5_r) | |
| #define cpu_has_mips_5_r (cpu_has_mips_5 | cpu_has_mips_r) | |
| #define cpu_has_mips_3_4_5_64_r2_r6 \ | |
| (cpu_has_mips_3 | cpu_has_mips_4_5_64_r2_r6) | |
| #define cpu_has_mips_4_5_64_r2_r6 \ | |
| (cpu_has_mips_4_5 | cpu_has_mips64r1 | \ | |
| cpu_has_mips_r2 | cpu_has_mips_r6) | |
| #define cpu_has_mips32 (cpu_has_mips32r1 | cpu_has_mips32r2 | cpu_has_mips32r6) | |
| #define cpu_has_mips64 (cpu_has_mips64r1 | cpu_has_mips64r2 | cpu_has_mips64r6) | |
| #define cpu_has_mips_r1 (cpu_has_mips32r1 | cpu_has_mips64r1) | |
| #define cpu_has_mips_r2 (cpu_has_mips32r2 | cpu_has_mips64r2) | |
| #define cpu_has_mips_r6 (cpu_has_mips32r6 | cpu_has_mips64r6) | |
| #define cpu_has_mips_r (cpu_has_mips32r1 | cpu_has_mips32r2 | \ | |
| cpu_has_mips32r6 | cpu_has_mips64r1 | \ | |
| cpu_has_mips64r2 | cpu_has_mips64r6) | |
| /* MIPSR2 and MIPSR6 have a lot of similarities */ | |
| #define cpu_has_mips_r2_r6 (cpu_has_mips_r2 | cpu_has_mips_r6) | |
| /* | |
| * cpu_has_mips_r2_exec_hazard - return if IHB is required on current processor | |
| * | |
| * Returns non-zero value if the current processor implementation requires | |
| * an IHB instruction to deal with an instruction hazard as per MIPS R2 | |
| * architecture specification, zero otherwise. | |
| */ | |
| #ifndef cpu_has_mips_r2_exec_hazard | |
| #define cpu_has_mips_r2_exec_hazard \ | |
| ({ \ | |
| int __res; \ | |
| \ | |
| switch (current_cpu_type()) { \ | |
| case CPU_M14KC: \ | |
| case CPU_74K: \ | |
| case CPU_1074K: \ | |
| case CPU_PROAPTIV: \ | |
| case CPU_P5600: \ | |
| case CPU_M5150: \ | |
| case CPU_QEMU_GENERIC: \ | |
| case CPU_CAVIUM_OCTEON: \ | |
| case CPU_CAVIUM_OCTEON_PLUS: \ | |
| case CPU_CAVIUM_OCTEON2: \ | |
| case CPU_CAVIUM_OCTEON3: \ | |
| __res = 0; \ | |
| break; \ | |
| \ | |
| default: \ | |
| __res = 1; \ | |
| } \ | |
| \ | |
| __res; \ | |
| }) | |
| #endif | |
| /* | |
| * MIPS32, MIPS64, VR5500, IDT32332, IDT32334 and maybe a few other | |
| * pre-MIPS32/MIPS64 processors have CLO, CLZ. The IDT RC64574 is 64-bit and | |
| * has CLO and CLZ but not DCLO nor DCLZ. For 64-bit kernels | |
| * cpu_has_clo_clz also indicates the availability of DCLO and DCLZ. | |
| */ | |
| #ifndef cpu_has_clo_clz | |
| #define cpu_has_clo_clz cpu_has_mips_r | |
| #endif | |
| /* | |
| * MIPS32 R2, MIPS64 R2, Loongson 3A and Octeon have WSBH. | |
| * MIPS64 R2, Loongson 3A and Octeon have WSBH, DSBH and DSHD. | |
| * This indicates the availability of WSBH and in case of 64 bit CPUs also | |
| * DSBH and DSHD. | |
| */ | |
| #ifndef cpu_has_wsbh | |
| #define cpu_has_wsbh cpu_has_mips_r2 | |
| #endif | |
| #ifndef cpu_has_dsp | |
| #define cpu_has_dsp (cpu_data[0].ases & MIPS_ASE_DSP) | |
| #endif | |
| #ifndef cpu_has_dsp2 | |
| #define cpu_has_dsp2 (cpu_data[0].ases & MIPS_ASE_DSP2P) | |
| #endif | |
| #ifndef cpu_has_dsp3 | |
| #define cpu_has_dsp3 (cpu_data[0].ases & MIPS_ASE_DSP3) | |
| #endif | |
| #ifndef cpu_has_mipsmt | |
| #define cpu_has_mipsmt (cpu_data[0].ases & MIPS_ASE_MIPSMT) | |
| #endif | |
| #ifndef cpu_has_vp | |
| #define cpu_has_vp (cpu_data[0].options & MIPS_CPU_VP) | |
| #endif | |
| #ifndef cpu_has_userlocal | |
| #define cpu_has_userlocal (cpu_data[0].options & MIPS_CPU_ULRI) | |
| #endif | |
| #ifdef CONFIG_32BIT | |
| # ifndef cpu_has_nofpuex | |
| # define cpu_has_nofpuex (cpu_data[0].options & MIPS_CPU_NOFPUEX) | |
| # endif | |
| # ifndef cpu_has_64bits | |
| # define cpu_has_64bits (cpu_data[0].isa_level & MIPS_CPU_ISA_64BIT) | |
| # endif | |
| # ifndef cpu_has_64bit_zero_reg | |
| # define cpu_has_64bit_zero_reg (cpu_data[0].isa_level & MIPS_CPU_ISA_64BIT) | |
| # endif | |
| # ifndef cpu_has_64bit_gp_regs | |
| # define cpu_has_64bit_gp_regs 0 | |
| # endif | |
| # ifndef cpu_has_64bit_addresses | |
| # define cpu_has_64bit_addresses 0 | |
| # endif | |
| # ifndef cpu_vmbits | |
| # define cpu_vmbits 31 | |
| # endif | |
| #endif | |
| #ifdef CONFIG_64BIT | |
| # ifndef cpu_has_nofpuex | |
| # define cpu_has_nofpuex 0 | |
| # endif | |
| # ifndef cpu_has_64bits | |
| # define cpu_has_64bits 1 | |
| # endif | |
| # ifndef cpu_has_64bit_zero_reg | |
| # define cpu_has_64bit_zero_reg 1 | |
| # endif | |
| # ifndef cpu_has_64bit_gp_regs | |
| # define cpu_has_64bit_gp_regs 1 | |
| # endif | |
| # ifndef cpu_has_64bit_addresses | |
| # define cpu_has_64bit_addresses 1 | |
| # endif | |
| # ifndef cpu_vmbits | |
| # define cpu_vmbits cpu_data[0].vmbits | |
| # define __NEED_VMBITS_PROBE | |
| # endif | |
| #endif | |
| #if defined(CONFIG_CPU_MIPSR2_IRQ_VI) && !defined(cpu_has_vint) | |
| # define cpu_has_vint (cpu_data[0].options & MIPS_CPU_VINT) | |
| #elif !defined(cpu_has_vint) | |
| # define cpu_has_vint 0 | |
| #endif | |
| #if defined(CONFIG_CPU_MIPSR2_IRQ_EI) && !defined(cpu_has_veic) | |
| # define cpu_has_veic (cpu_data[0].options & MIPS_CPU_VEIC) | |
| #elif !defined(cpu_has_veic) | |
| # define cpu_has_veic 0 | |
| #endif | |
| #ifndef cpu_has_inclusive_pcaches | |
| #define cpu_has_inclusive_pcaches (cpu_data[0].options & MIPS_CPU_INCLUSIVE_CACHES) | |
| #endif | |
| #ifndef cpu_dcache_line_size | |
| #define cpu_dcache_line_size() cpu_data[0].dcache.linesz | |
| #endif | |
| #ifndef cpu_icache_line_size | |
| #define cpu_icache_line_size() cpu_data[0].icache.linesz | |
| #endif | |
| #ifndef cpu_scache_line_size | |
| #define cpu_scache_line_size() cpu_data[0].scache.linesz | |
| #endif | |
| #ifndef cpu_tcache_line_size | |
| #define cpu_tcache_line_size() cpu_data[0].tcache.linesz | |
| #endif | |
| #ifndef cpu_hwrena_impl_bits | |
| #define cpu_hwrena_impl_bits 0 | |
| #endif | |
| #ifndef cpu_has_perf_cntr_intr_bit | |
| #define cpu_has_perf_cntr_intr_bit (cpu_data[0].options & MIPS_CPU_PCI) | |
| #endif | |
| #ifndef cpu_has_vz | |
| #define cpu_has_vz (cpu_data[0].ases & MIPS_ASE_VZ) | |
| #endif | |
| #if defined(CONFIG_CPU_HAS_MSA) && !defined(cpu_has_msa) | |
| # define cpu_has_msa (cpu_data[0].ases & MIPS_ASE_MSA) | |
| #elif !defined(cpu_has_msa) | |
| # define cpu_has_msa 0 | |
| #endif | |
| #ifndef cpu_has_ufr | |
| # define cpu_has_ufr (cpu_data[0].options & MIPS_CPU_UFR) | |
| #endif | |
| #ifndef cpu_has_fre | |
| # define cpu_has_fre (cpu_data[0].options & MIPS_CPU_FRE) | |
| #endif | |
| #ifndef cpu_has_cdmm | |
| # define cpu_has_cdmm (cpu_data[0].options & MIPS_CPU_CDMM) | |
| #endif | |
| #ifndef cpu_has_small_pages | |
| # define cpu_has_small_pages (cpu_data[0].options & MIPS_CPU_SP) | |
| #endif | |
| #ifndef cpu_has_nan_legacy | |
| #define cpu_has_nan_legacy (cpu_data[0].options & MIPS_CPU_NAN_LEGACY) | |
| #endif | |
| #ifndef cpu_has_nan_2008 | |
| #define cpu_has_nan_2008 (cpu_data[0].options & MIPS_CPU_NAN_2008) | |
| #endif | |
| #ifndef cpu_has_ebase_wg | |
| # define cpu_has_ebase_wg (cpu_data[0].options & MIPS_CPU_EBASE_WG) | |
| #endif | |
| #ifndef cpu_has_badinstr | |
| # define cpu_has_badinstr (cpu_data[0].options & MIPS_CPU_BADINSTR) | |
| #endif | |
| #ifndef cpu_has_badinstrp | |
| # define cpu_has_badinstrp (cpu_data[0].options & MIPS_CPU_BADINSTRP) | |
| #endif | |
| #ifndef cpu_has_contextconfig | |
| # define cpu_has_contextconfig (cpu_data[0].options & MIPS_CPU_CTXTC) | |
| #endif | |
| #ifndef cpu_has_perf | |
| # define cpu_has_perf (cpu_data[0].options & MIPS_CPU_PERF) | |
| #endif | |
| #if defined(CONFIG_SMP) && defined(__mips_isa_rev) && (__mips_isa_rev >= 6) | |
| /* | |
| * Some systems share FTLB RAMs between threads within a core (siblings in | |
| * kernel parlance). This means that FTLB entries may become invalid at almost | |
| * any point when an entry is evicted due to a sibling thread writing an entry | |
| * to the shared FTLB RAM. | |
| * | |
| * This is only relevant to SMP systems, and the only systems that exhibit this | |
| * property implement MIPSr6 or higher so we constrain support for this to | |
| * kernels that will run on such systems. | |
| */ | |
| # ifndef cpu_has_shared_ftlb_ram | |
| # define cpu_has_shared_ftlb_ram \ | |
| (current_cpu_data.options & MIPS_CPU_SHARED_FTLB_RAM) | |
| # endif | |
| /* | |
| * Some systems take this a step further & share FTLB entries between siblings. | |
| * This is implemented as TLB writes happening as usual, but if an entry | |
| * written by a sibling exists in the shared FTLB for a translation which would | |
| * otherwise cause a TLB refill exception then the CPU will use the entry | |
| * written by its sibling rather than triggering a refill & writing a matching | |
| * TLB entry for itself. | |
| * | |
| * This is naturally only valid if a TLB entry is known to be suitable for use | |
| * on all siblings in a CPU, and so it only takes effect when MMIDs are in use | |
| * rather than ASIDs or when a TLB entry is marked global. | |
| */ | |
| # ifndef cpu_has_shared_ftlb_entries | |
| # define cpu_has_shared_ftlb_entries \ | |
| (current_cpu_data.options & MIPS_CPU_SHARED_FTLB_ENTRIES) | |
| # endif | |
| #endif /* SMP && __mips_isa_rev >= 6 */ | |
| #ifndef cpu_has_shared_ftlb_ram | |
| # define cpu_has_shared_ftlb_ram 0 | |
| #endif | |
| #ifndef cpu_has_shared_ftlb_entries | |
| # define cpu_has_shared_ftlb_entries 0 | |
| #endif | |
| /* | |
| * Guest capabilities | |
| */ | |
| #ifndef cpu_guest_has_conf1 | |
| #define cpu_guest_has_conf1 (cpu_data[0].guest.conf & (1 << 1)) | |
| #endif | |
| #ifndef cpu_guest_has_conf2 | |
| #define cpu_guest_has_conf2 (cpu_data[0].guest.conf & (1 << 2)) | |
| #endif | |
| #ifndef cpu_guest_has_conf3 | |
| #define cpu_guest_has_conf3 (cpu_data[0].guest.conf & (1 << 3)) | |
| #endif | |
| #ifndef cpu_guest_has_conf4 | |
| #define cpu_guest_has_conf4 (cpu_data[0].guest.conf & (1 << 4)) | |
| #endif | |
| #ifndef cpu_guest_has_conf5 | |
| #define cpu_guest_has_conf5 (cpu_data[0].guest.conf & (1 << 5)) | |
| #endif | |
| #ifndef cpu_guest_has_conf6 | |
| #define cpu_guest_has_conf6 (cpu_data[0].guest.conf & (1 << 6)) | |
| #endif | |
| #ifndef cpu_guest_has_conf7 | |
| #define cpu_guest_has_conf7 (cpu_data[0].guest.conf & (1 << 7)) | |
| #endif | |
| #ifndef cpu_guest_has_fpu | |
| #define cpu_guest_has_fpu (cpu_data[0].guest.options & MIPS_CPU_FPU) | |
| #endif | |
| #ifndef cpu_guest_has_watch | |
| #define cpu_guest_has_watch (cpu_data[0].guest.options & MIPS_CPU_WATCH) | |
| #endif | |
| #ifndef cpu_guest_has_contextconfig | |
| #define cpu_guest_has_contextconfig (cpu_data[0].guest.options & MIPS_CPU_CTXTC) | |
| #endif | |
| #ifndef cpu_guest_has_segments | |
| #define cpu_guest_has_segments (cpu_data[0].guest.options & MIPS_CPU_SEGMENTS) | |
| #endif | |
| #ifndef cpu_guest_has_badinstr | |
| #define cpu_guest_has_badinstr (cpu_data[0].guest.options & MIPS_CPU_BADINSTR) | |
| #endif | |
| #ifndef cpu_guest_has_badinstrp | |
| #define cpu_guest_has_badinstrp (cpu_data[0].guest.options & MIPS_CPU_BADINSTRP) | |
| #endif | |
| #ifndef cpu_guest_has_htw | |
| #define cpu_guest_has_htw (cpu_data[0].guest.options & MIPS_CPU_HTW) | |
| #endif | |
| #ifndef cpu_guest_has_mvh | |
| #define cpu_guest_has_mvh (cpu_data[0].guest.options & MIPS_CPU_MVH) | |
| #endif | |
| #ifndef cpu_guest_has_msa | |
| #define cpu_guest_has_msa (cpu_data[0].guest.ases & MIPS_ASE_MSA) | |
| #endif | |
| #ifndef cpu_guest_has_kscr | |
| #define cpu_guest_has_kscr(n) (cpu_data[0].guest.kscratch_mask & (1u << (n))) | |
| #endif | |
| #ifndef cpu_guest_has_rw_llb | |
| #define cpu_guest_has_rw_llb (cpu_has_mips_r6 || (cpu_data[0].guest.options & MIPS_CPU_RW_LLB)) | |
| #endif | |
| #ifndef cpu_guest_has_perf | |
| #define cpu_guest_has_perf (cpu_data[0].guest.options & MIPS_CPU_PERF) | |
| #endif | |
| #ifndef cpu_guest_has_maar | |
| #define cpu_guest_has_maar (cpu_data[0].guest.options & MIPS_CPU_MAAR) | |
| #endif | |
| #ifndef cpu_guest_has_userlocal | |
| #define cpu_guest_has_userlocal (cpu_data[0].guest.options & MIPS_CPU_ULRI) | |
| #endif | |
| /* | |
| * Guest dynamic capabilities | |
| */ | |
| #ifndef cpu_guest_has_dyn_fpu | |
| #define cpu_guest_has_dyn_fpu (cpu_data[0].guest.options_dyn & MIPS_CPU_FPU) | |
| #endif | |
| #ifndef cpu_guest_has_dyn_watch | |
| #define cpu_guest_has_dyn_watch (cpu_data[0].guest.options_dyn & MIPS_CPU_WATCH) | |
| #endif | |
| #ifndef cpu_guest_has_dyn_contextconfig | |
| #define cpu_guest_has_dyn_contextconfig (cpu_data[0].guest.options_dyn & MIPS_CPU_CTXTC) | |
| #endif | |
| #ifndef cpu_guest_has_dyn_perf | |
| #define cpu_guest_has_dyn_perf (cpu_data[0].guest.options_dyn & MIPS_CPU_PERF) | |
| #endif | |
| #ifndef cpu_guest_has_dyn_msa | |
| #define cpu_guest_has_dyn_msa (cpu_data[0].guest.ases_dyn & MIPS_ASE_MSA) | |
| #endif | |
| #ifndef cpu_guest_has_dyn_maar | |
| #define cpu_guest_has_dyn_maar (cpu_data[0].guest.options_dyn & MIPS_CPU_MAAR) | |
| #endif | |
| #endif /* __ASM_CPU_FEATURES_H */ |