From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-x241.google.com (mail-pg0-x241.google.com [IPv6:2607:f8b0:400e:c05::241]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 413cTv6GX6zF0gv for ; Sun, 10 Jun 2018 23:30:43 +1000 (AEST) Received: by mail-pg0-x241.google.com with SMTP id w12-v6so8485110pgc.6 for ; Sun, 10 Jun 2018 06:30:43 -0700 (PDT) From: Nicholas Piggin To: linuxppc-dev@lists.ozlabs.org Cc: Nicholas Piggin Subject: [RFC PATCH] powerpc/64s: remove POWER9 DD1 support Date: Sun, 10 Jun 2018 23:30:27 +1000 Message-Id: <20180610133027.16819-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , POWER9 DD1 was never a product. It is no longer supported by upstream firmware, and it is not effectively supported in Linux due to lack of testing. Signed-off-by: Nicholas Piggin --- arch/powerpc/include/asm/book3s/64/hugetlb.h | 15 +----- arch/powerpc/include/asm/book3s/64/pgtable.h | 5 +- arch/powerpc/include/asm/book3s/64/radix.h | 35 ++----------- .../include/asm/book3s/64/tlbflush-radix.h | 2 - arch/powerpc/include/asm/cputable.h | 13 ++--- arch/powerpc/include/asm/paca.h | 5 -- arch/powerpc/kernel/asm-offsets.c | 1 - arch/powerpc/kernel/cputable.c | 19 ------- arch/powerpc/kernel/dt_cpu_ftrs.c | 4 +- arch/powerpc/kernel/exceptions-64s.S | 4 +- arch/powerpc/kernel/idle_book3s.S | 50 ------------------- arch/powerpc/kernel/process.c | 10 +--- arch/powerpc/kvm/book3s_64_mmu_radix.c | 15 +----- arch/powerpc/kvm/book3s_hv.c | 10 ---- arch/powerpc/kvm/book3s_hv_rmhandlers.S | 16 +----- arch/powerpc/kvm/book3s_xive_template.c | 14 +----- arch/powerpc/mm/hash_utils_64.c | 5 -- arch/powerpc/mm/hugetlbpage.c | 8 ++- arch/powerpc/mm/mmu_context_book3s64.c | 12 +---- arch/powerpc/mm/pgtable-radix.c | 31 +----------- arch/powerpc/mm/tlb-radix.c | 18 ------- arch/powerpc/perf/core-book3s.c | 33 ------------ arch/powerpc/perf/isa207-common.c | 12 ++--- arch/powerpc/perf/isa207-common.h | 5 -- arch/powerpc/perf/power9-pmu.c | 37 +------------- arch/powerpc/platforms/powernv/idle.c | 28 ----------- arch/powerpc/platforms/powernv/smp.c | 27 ++-------- arch/powerpc/xmon/xmon.c | 1 - drivers/misc/cxl/cxl.h | 8 --- drivers/misc/cxl/cxllib.c | 4 -- drivers/misc/cxl/pci.c | 41 ++++++--------- 31 files changed, 51 insertions(+), 437 deletions(-) diff --git a/arch/powerpc/include/asm/book3s/64/hugetlb.h b/arch/powerpc/include/asm/book3s/64/hugetlb.h index c459f937d484..8000aa4990d2 100644 --- a/arch/powerpc/include/asm/book3s/64/hugetlb.h +++ b/arch/powerpc/include/asm/book3s/64/hugetlb.h @@ -36,20 +36,7 @@ static inline int hstate_get_psize(struct hstate *hstate) static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma, struct page *page, int writable) { - unsigned long page_shift; - - if (!cpu_has_feature(CPU_FTR_POWER9_DD1)) - return entry; - - page_shift = huge_page_shift(hstate_vma(vma)); - /* - * We don't support 1G hugetlb pages yet. - */ - VM_WARN_ON(page_shift == mmu_psize_defs[MMU_PAGE_1G].shift); - if (page_shift == mmu_psize_defs[MMU_PAGE_2M].shift) - return __pte(pte_val(entry) | R_PAGE_LARGE); - else - return entry; + return entry; } #ifdef CONFIG_ARCH_HAS_GIGANTIC_PAGE diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index 63cee159022b..d334e6b9a46d 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -474,9 +474,8 @@ static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, { if (full && radix_enabled()) { /* - * Let's skip the DD1 style pte update here. We know that - * this is a full mm pte clear and hence can be sure there is - * no parallel set_pte. + * We know that this is a full mm pte clear and + * hence can be sure there is no parallel set_pte. */ return radix__ptep_get_and_clear_full(mm, addr, ptep, full); } diff --git a/arch/powerpc/include/asm/book3s/64/radix.h b/arch/powerpc/include/asm/book3s/64/radix.h index ef9f96742ce1..3ab3f7aef022 100644 --- a/arch/powerpc/include/asm/book3s/64/radix.h +++ b/arch/powerpc/include/asm/book3s/64/radix.h @@ -12,12 +12,6 @@ #include #endif -/* - * For P9 DD1 only, we need to track whether the pte's huge. - */ -#define R_PAGE_LARGE _RPAGE_RSV1 - - #ifndef __ASSEMBLY__ #include #include @@ -154,20 +148,7 @@ static inline unsigned long radix__pte_update(struct mm_struct *mm, { unsigned long old_pte; - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) { - - unsigned long new_pte; - - old_pte = __radix_pte_update(ptep, ~0ul, 0); - /* - * new value of pte - */ - new_pte = (old_pte | set) & ~clr; - radix__flush_tlb_pte_p9_dd1(old_pte, mm, addr); - if (new_pte) - __radix_pte_update(ptep, 0, new_pte); - } else - old_pte = __radix_pte_update(ptep, clr, set); + old_pte = __radix_pte_update(ptep, clr, set); if (!huge) assert_pte_locked(mm, addr); @@ -253,8 +234,6 @@ static inline int radix__pmd_trans_huge(pmd_t pmd) static inline pmd_t radix__pmd_mkhuge(pmd_t pmd) { - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) - return __pmd(pmd_val(pmd) | _PAGE_PTE | R_PAGE_LARGE); return __pmd(pmd_val(pmd) | _PAGE_PTE); } @@ -285,18 +264,14 @@ static inline unsigned long radix__get_tree_size(void) unsigned long rts_field; /* * We support 52 bits, hence: - * DD1 52-28 = 24, 0b11000 - * Others 52-31 = 21, 0b10101 + * bits 52 - 31 = 21, 0b10101 * RTS encoding details * bits 0 - 3 of rts -> bits 6 - 8 unsigned long * bits 4 - 5 of rts -> bits 62 - 63 of unsigned long */ - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) - rts_field = (0x3UL << 61); - else { - rts_field = (0x5UL << 5); /* 6 - 8 bits */ - rts_field |= (0x2UL << 61); - } + rts_field = (0x5UL << 5); /* 6 - 8 bits */ + rts_field |= (0x2UL << 61); + return rts_field; } diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h index ef5c3f2994c9..1154a6dc6d26 100644 --- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h +++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h @@ -48,8 +48,6 @@ extern void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmad extern void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr); extern void radix__flush_tlb_collapsed_pmd(struct mm_struct *mm, unsigned long addr); extern void radix__flush_tlb_all(void); -extern void radix__flush_tlb_pte_p9_dd1(unsigned long old_pte, struct mm_struct *mm, - unsigned long address); extern void radix__flush_tlb_lpid_page(unsigned int lpid, unsigned long addr, diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h index 9c0a3083571b..f980f91cad8a 100644 --- a/arch/powerpc/include/asm/cputable.h +++ b/arch/powerpc/include/asm/cputable.h @@ -210,7 +210,6 @@ static inline void cpu_feature_keys_init(void) { } #define CPU_FTR_DAWR LONG_ASM_CONST(0x0000008000000000) #define CPU_FTR_DABRX LONG_ASM_CONST(0x0000010000000000) #define CPU_FTR_PMAO_BUG LONG_ASM_CONST(0x0000020000000000) -#define CPU_FTR_POWER9_DD1 LONG_ASM_CONST(0x0000040000000000) #define CPU_FTR_POWER9_DD2_1 LONG_ASM_CONST(0x0000080000000000) #define CPU_FTR_P9_TM_HV_ASSIST LONG_ASM_CONST(0x0000100000000000) #define CPU_FTR_P9_TM_XER_SO_BUG LONG_ASM_CONST(0x0000200000000000) @@ -464,8 +463,6 @@ static inline void cpu_feature_keys_init(void) { } CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_ARCH_207S | \ CPU_FTR_TM_COMP | CPU_FTR_ARCH_300 | CPU_FTR_PKEY | \ CPU_FTR_P9_TLBIE_BUG | CPU_FTR_P9_TIDR) -#define CPU_FTRS_POWER9_DD1 ((CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD1) & \ - (~CPU_FTR_SAO)) #define CPU_FTRS_POWER9_DD2_0 CPU_FTRS_POWER9 #define CPU_FTRS_POWER9_DD2_1 (CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD2_1) #define CPU_FTRS_POWER9_DD2_2 (CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD2_1 | \ @@ -489,16 +486,14 @@ static inline void cpu_feature_keys_init(void) { } #define CPU_FTRS_POSSIBLE \ (CPU_FTRS_POWER7 | CPU_FTRS_POWER8E | CPU_FTRS_POWER8 | \ CPU_FTRS_POWER8_DD1 | CPU_FTR_ALTIVEC_COMP | CPU_FTR_VSX_COMP | \ - CPU_FTRS_POWER9 | CPU_FTRS_POWER9_DD1 | CPU_FTRS_POWER9_DD2_1 | \ - CPU_FTRS_POWER9_DD2_2) + CPU_FTRS_POWER9 | CPU_FTRS_POWER9_DD2_1 | CPU_FTRS_POWER9_DD2_2) #else #define CPU_FTRS_POSSIBLE \ (CPU_FTRS_PPC970 | CPU_FTRS_POWER5 | \ CPU_FTRS_POWER6 | CPU_FTRS_POWER7 | CPU_FTRS_POWER8E | \ CPU_FTRS_POWER8 | CPU_FTRS_POWER8_DD1 | CPU_FTRS_CELL | \ CPU_FTRS_PA6T | CPU_FTR_VSX_COMP | CPU_FTR_ALTIVEC_COMP | \ - CPU_FTRS_POWER9 | CPU_FTRS_POWER9_DD1 | CPU_FTRS_POWER9_DD2_1 | \ - CPU_FTRS_POWER9_DD2_2) + CPU_FTRS_POWER9 | CPU_FTRS_POWER9_DD2_1 | CPU_FTRS_POWER9_DD2_2) #endif /* CONFIG_CPU_LITTLE_ENDIAN */ #endif #else @@ -567,7 +562,7 @@ enum { #define CPU_FTRS_ALWAYS \ (CPU_FTRS_POSSIBLE & ~CPU_FTR_HVMODE & CPU_FTRS_POWER7 & \ CPU_FTRS_POWER8E & CPU_FTRS_POWER8 & CPU_FTRS_POWER8_DD1 & \ - CPU_FTRS_POWER9 & CPU_FTRS_POWER9_DD1 & CPU_FTRS_POWER9_DD2_1 & \ + CPU_FTRS_POWER9 & CPU_FTRS_POWER9_DD2_1 & \ CPU_FTRS_DT_CPU_BASE) #else #define CPU_FTRS_ALWAYS \ @@ -575,7 +570,7 @@ enum { CPU_FTRS_POWER6 & CPU_FTRS_POWER7 & CPU_FTRS_CELL & \ CPU_FTRS_PA6T & CPU_FTRS_POWER8 & CPU_FTRS_POWER8E & \ CPU_FTRS_POWER8_DD1 & ~CPU_FTR_HVMODE & CPU_FTRS_POSSIBLE & \ - CPU_FTRS_POWER9 & CPU_FTRS_POWER9_DD1 & CPU_FTRS_POWER9_DD2_1 & \ + CPU_FTRS_POWER9 & CPU_FTRS_POWER9_DD2_1 & \ CPU_FTRS_DT_CPU_BASE) #endif /* CONFIG_CPU_LITTLE_ENDIAN */ #endif diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h index 6d34bd71139d..4e9cede5a7e7 100644 --- a/arch/powerpc/include/asm/paca.h +++ b/arch/powerpc/include/asm/paca.h @@ -187,11 +187,6 @@ struct paca_struct { u8 subcore_sibling_mask; /* Flag to request this thread not to stop */ atomic_t dont_stop; - /* - * Pointer to an array which contains pointer - * to the sibling threads' paca. - */ - struct paca_struct **thread_sibling_pacas; /* The PSSCR value that the kernel requested before going to stop */ u64 requested_psscr; diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 9fc9e0977009..e329c71a60dd 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -766,7 +766,6 @@ int main(void) OFFSET(PACA_THREAD_IDLE_STATE, paca_struct, thread_idle_state); OFFSET(PACA_THREAD_MASK, paca_struct, thread_mask); OFFSET(PACA_SUBCORE_SIBLING_MASK, paca_struct, subcore_sibling_mask); - OFFSET(PACA_SIBLING_PACA_PTRS, paca_struct, thread_sibling_pacas); OFFSET(PACA_REQ_PSSCR, paca_struct, requested_psscr); OFFSET(PACA_DONT_STOP, paca_struct, dont_stop); #define STOP_SPR(x, f) OFFSET(x, paca_struct, stop_sprs.f) diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index c8fc9691f8c7..bc75a2908a7e 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -485,25 +485,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .machine_check_early = __machine_check_early_realmode_p8, .platform = "power8", }, - { /* Power9 DD1*/ - .pvr_mask = 0xffffff00, - .pvr_value = 0x004e0100, - .cpu_name = "POWER9 (raw)", - .cpu_features = CPU_FTRS_POWER9_DD1, - .cpu_user_features = COMMON_USER_POWER9, - .cpu_user_features2 = COMMON_USER2_POWER9, - .mmu_features = MMU_FTRS_POWER9, - .icache_bsize = 128, - .dcache_bsize = 128, - .num_pmcs = 6, - .pmc_type = PPC_PMC_IBM, - .oprofile_cpu_type = "ppc64/power9", - .oprofile_type = PPC_OPROFILE_INVALID, - .cpu_setup = __setup_cpu_power9, - .cpu_restore = __restore_cpu_power9, - .machine_check_early = __machine_check_early_realmode_p9, - .platform = "power9", - }, { /* Power9 DD2.0 */ .pvr_mask = 0xffffefff, .pvr_value = 0x004e0200, diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c index 4be1c0de9406..98c373a4c1cf 100644 --- a/arch/powerpc/kernel/dt_cpu_ftrs.c +++ b/arch/powerpc/kernel/dt_cpu_ftrs.c @@ -701,9 +701,7 @@ static __init void cpufeatures_cpu_quirks(void) /* * Not all quirks can be derived from the cpufeatures device tree. */ - if ((version & 0xffffff00) == 0x004e0100) - cur_cpu_spec->cpu_features |= CPU_FTR_POWER9_DD1; - else if ((version & 0xffffefff) == 0x004e0200) + if ((version & 0xffffefff) == 0x004e0200) ; /* DD2.0 has no feature flag */ else if ((version & 0xffffefff) == 0x004e0201) cur_cpu_spec->cpu_features |= CPU_FTR_POWER9_DD2_1; diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 285c6465324a..76a14702cb9c 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -276,9 +276,7 @@ BEGIN_FTR_SECTION * * This interrupt can wake directly from idle. If that is the case, * the machine check is handled then the idle wakeup code is called - * to restore state. In that case, the POWER9 DD1 idle PACA workaround - * is not applied in the early machine check code, which will cause - * bugs. + * to restore state. */ mr r11,r1 /* Save r1 */ lhz r10,PACA_IN_MCE(r13) diff --git a/arch/powerpc/kernel/idle_book3s.S b/arch/powerpc/kernel/idle_book3s.S index e734f6e45abc..d85d5515a091 100644 --- a/arch/powerpc/kernel/idle_book3s.S +++ b/arch/powerpc/kernel/idle_book3s.S @@ -466,43 +466,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_P9_TM_XER_SO_BUG) blr /* return 0 for wakeup cause / SRR1 value */ #endif -/* - * On waking up from stop 0,1,2 with ESL=1 on POWER9 DD1, - * HSPRG0 will be set to the HSPRG0 value of one of the - * threads in this core. Thus the value we have in r13 - * may not be this thread's paca pointer. - * - * Fortunately, the TIR remains invariant. Since this thread's - * paca pointer is recorded in all its sibling's paca, we can - * correctly recover this thread's paca pointer if we - * know the index of this thread in the core. - * - * This index can be obtained from the TIR. - * - * i.e, thread's position in the core = TIR. - * If this value is i, then this thread's paca is - * paca->thread_sibling_pacas[i]. - */ -power9_dd1_recover_paca: - mfspr r4, SPRN_TIR - /* - * Since each entry in thread_sibling_pacas is 8 bytes - * we need to left-shift by 3 bits. Thus r4 = i * 8 - */ - sldi r4, r4, 3 - /* Get &paca->thread_sibling_pacas[0] in r5 */ - ld r5, PACA_SIBLING_PACA_PTRS(r13) - /* Load paca->thread_sibling_pacas[i] into r13 */ - ldx r13, r4, r5 - SET_PACA(r13) - /* - * Indicate that we have lost NVGPR state - * which needs to be restored from the stack. - */ - li r3, 1 - stb r3,PACA_NAPSTATELOST(r13) - blr - /* * Called from machine check handler for powersave wakeups. * Low level machine check processing has already been done. Now just @@ -537,9 +500,6 @@ pnv_powersave_wakeup: ld r2, PACATOC(r13) BEGIN_FTR_SECTION -BEGIN_FTR_SECTION_NESTED(70) - bl power9_dd1_recover_paca -END_FTR_SECTION_NESTED_IFSET(CPU_FTR_POWER9_DD1, 70) bl pnv_restore_hyp_resource_arch300 FTR_SECTION_ELSE bl pnv_restore_hyp_resource_arch207 @@ -602,22 +562,12 @@ END_FTR_SECTION_IFCLR(CPU_FTR_POWER9_DD2_1) LOAD_REG_ADDRBASE(r5,pnv_first_deep_stop_state) ld r4,ADDROFF(pnv_first_deep_stop_state)(r5) -BEGIN_FTR_SECTION_NESTED(71) - /* - * Assume that we are waking up from the state - * same as the Requested Level (RL) in the PSSCR - * which are Bits 60-63 - */ - ld r5,PACA_REQ_PSSCR(r13) - rldicl r5,r5,0,60 -FTR_SECTION_ELSE_NESTED(71) /* * 0-3 bits correspond to Power-Saving Level Status * which indicates the idle state we are waking up from */ mfspr r5, SPRN_PSSCR rldicl r5,r5,4,60 -ALT_FTR_SECTION_END_NESTED_IFSET(CPU_FTR_POWER9_DD1, 71) li r0, 0 /* clear requested_psscr to say we're awake */ std r0, PACA_REQ_PSSCR(r13) cmpd cr4,r5,r4 diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 9ef4aea9fffe..27f0caee55ea 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1250,17 +1250,9 @@ struct task_struct *__switch_to(struct task_struct *prev, * mappings. If the new process has the foreign real address * mappings, we must issue a cp_abort to clear any state and * prevent snooping, corruption or a covert channel. - * - * DD1 allows paste into normal system memory so we do an - * unpaired copy, rather than cp_abort, to clear the buffer, - * since cp_abort is quite expensive. */ - if (current_thread_info()->task->thread.used_vas) { + if (current_thread_info()->task->thread.used_vas) asm volatile(PPC_CP_ABORT); - } else if (cpu_has_feature(CPU_FTR_POWER9_DD1)) { - asm volatile(PPC_COPY(%0, %1) - : : "r"(dummy_copy_buffer), "r"(0)); - } } #endif /* CONFIG_PPC_BOOK3S_64 */ diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index 481da8f93fa4..0aa40b7d6000 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -66,10 +66,7 @@ int kvmppc_mmu_radix_xlate(struct kvm_vcpu *vcpu, gva_t eaddr, bits = root & RPDS_MASK; root = root & RPDB_MASK; - /* P9 DD1 interprets RTS (radix tree size) differently */ offset = rts + 31; - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) - offset -= 3; /* current implementations only support 52-bit space */ if (offset != 52) @@ -180,17 +177,7 @@ unsigned long kvmppc_radix_update_pte(struct kvm *kvm, pte_t *ptep, unsigned long clr, unsigned long set, unsigned long addr, unsigned int shift) { - unsigned long old = 0; - - if (!(clr & _PAGE_PRESENT) && cpu_has_feature(CPU_FTR_POWER9_DD1) && - pte_present(*ptep)) { - /* have to invalidate it first */ - old = __radix_pte_update(ptep, _PAGE_PRESENT, 0); - kvmppc_radix_tlbie_page(kvm, addr, shift); - set |= _PAGE_PRESENT; - old &= _PAGE_PRESENT; - } - return __radix_pte_update(ptep, clr, set) | old; + return __radix_pte_update(ptep, clr, set); } void kvmppc_radix_set_pte_at(struct kvm *kvm, unsigned long addr, diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index cb6d2313b19f..ca17a9e7f759 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -1664,14 +1664,6 @@ static int kvmppc_set_one_reg_hv(struct kvm_vcpu *vcpu, u64 id, r = set_vpa(vcpu, &vcpu->arch.dtl, addr, len); break; case KVM_REG_PPC_TB_OFFSET: - /* - * POWER9 DD1 has an erratum where writing TBU40 causes - * the timebase to lose ticks. So we don't let the - * timebase offset be changed on P9 DD1. (It is - * initialized to zero.) - */ - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) - break; /* round up to multiple of 2^24 */ vcpu->arch.vcore->tb_offset = ALIGN(set_reg_val(id, *val), 1UL << 24); @@ -1989,8 +1981,6 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_hv(struct kvm *kvm, /* * Set the default HFSCR for the guest from the host value. * This value is only used on POWER9. - * On POWER9 DD1, TM doesn't work, so we make sure to - * prevent the guest from using it. * On POWER9, we want to virtualize the doorbell facility, so we * turn off the HFSCR bit, which causes those instructions to trap. */ diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index b97d261d3b89..fe22b40c356d 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -916,9 +916,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_DAWR) mtspr SPRN_BESCR, r6 mtspr SPRN_PID, r7 mtspr SPRN_WORT, r8 -BEGIN_FTR_SECTION - PPC_INVALIDATE_ERAT -END_FTR_SECTION_IFSET(CPU_FTR_POWER9_DD1) BEGIN_FTR_SECTION /* POWER8-only registers */ ld r5, VCPU_TCSCR(r4) @@ -1909,7 +1906,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) ld r5, VCPU_KVM(r9) lbz r0, KVM_RADIX(r5) cmpwi cr2, r0, 0 - beq cr2, 4f + beq cr2, 2f /* * Radix: do eieio; tlbsync; ptesync sequence in case we @@ -1949,11 +1946,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) bdnz 1b ptesync -2: /* Flush the ERAT on radix P9 DD1 guest exit */ -BEGIN_FTR_SECTION - PPC_INVALIDATE_ERAT -END_FTR_SECTION_IFSET(CPU_FTR_POWER9_DD1) -4: +2: #endif /* CONFIG_PPC_RADIX_MMU */ /* @@ -3533,11 +3526,6 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_300) mtspr SPRN_CIABR, r0 mtspr SPRN_DAWRX, r0 - /* Flush the ERAT on radix P9 DD1 guest exit */ -BEGIN_FTR_SECTION - PPC_INVALIDATE_ERAT -END_FTR_SECTION_IFSET(CPU_FTR_POWER9_DD1) - BEGIN_MMU_FTR_SECTION b 4f END_MMU_FTR_SECTION_IFSET(MMU_FTR_TYPE_RADIX) diff --git a/arch/powerpc/kvm/book3s_xive_template.c b/arch/powerpc/kvm/book3s_xive_template.c index 99c3620b40d9..487f1f6650cc 100644 --- a/arch/powerpc/kvm/book3s_xive_template.c +++ b/arch/powerpc/kvm/book3s_xive_template.c @@ -25,18 +25,6 @@ static void GLUE(X_PFX,ack_pending)(struct kvmppc_xive_vcpu *xc) */ eieio(); - /* - * DD1 bug workaround: If PIPR is less favored than CPPR - * ignore the interrupt or we might incorrectly lose an IPB - * bit. - */ - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) { - __be64 qw1 = __x_readq(__x_tima + TM_QW1_OS); - u8 pipr = be64_to_cpu(qw1) & 0xff; - if (pipr >= xc->hw_cppr) - return; - } - /* Perform the acknowledge OS to register cycle. */ ack = be16_to_cpu(__x_readw(__x_tima + TM_SPC_ACK_OS_REG)); @@ -105,7 +93,7 @@ static void GLUE(X_PFX,source_eoi)(u32 hw_irq, struct xive_irq_data *xd) * * For LSIs, using the HW EOI cycle works around a problem * on P9 DD1 PHBs where the other ESB accesses don't work - * properly. + * properly. XXX: can this be removed? */ if (xd->flags & XIVE_IRQ_FLAG_LSI) __x_readq(__x_eoi_page(xd) + XIVE_ESB_LOAD_EOI); diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index 8318716e5075..141ba68d63f3 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -845,8 +845,6 @@ static void __init hash_init_partition_table(phys_addr_t hash_table, htab_size = __ilog2(htab_size) - 18; mmu_partition_table_set_entry(0, hash_table | htab_size, 0); pr_info("Partition table %p\n", partition_tb); - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) - update_hid_for_hash(); } static void __init htab_initialize(void) @@ -1077,9 +1075,6 @@ void hash__early_init_mmu_secondary(void) /* Initialize hash table for that CPU */ if (!firmware_has_feature(FW_FEATURE_LPAR)) { - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) - update_hid_for_hash(); - if (!cpu_has_feature(CPU_FTR_ARCH_300)) mtspr(SPRN_SDR1, _SDR1); else diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 7c5f479c5c00..3e91acef24b2 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -620,14 +620,12 @@ static int __init add_huge_page_size(unsigned long long size) * firmware we only add hugetlb support for page sizes that can be * supported by linux page table layout. * For now we have - * Radix: 2M + * Radix: 2M and 1G * Hash: 16M and 16G */ if (radix_enabled()) { - if (mmu_psize != MMU_PAGE_2M) { - if (cpu_has_feature(CPU_FTR_POWER9_DD1) || - (mmu_psize != MMU_PAGE_1G)) - return -EINVAL; + if (mmu_psize != MMU_PAGE_2M && mmu_psize != MMU_PAGE_1G) + return -EINVAL; } } else { if (mmu_psize != MMU_PAGE_16M && mmu_psize != MMU_PAGE_16G) diff --git a/arch/powerpc/mm/mmu_context_book3s64.c b/arch/powerpc/mm/mmu_context_book3s64.c index f3d4b4a0e561..39e9ef0eb78b 100644 --- a/arch/powerpc/mm/mmu_context_book3s64.c +++ b/arch/powerpc/mm/mmu_context_book3s64.c @@ -273,15 +273,7 @@ void arch_exit_mmap(struct mm_struct *mm) #ifdef CONFIG_PPC_RADIX_MMU void radix__switch_mmu_context(struct mm_struct *prev, struct mm_struct *next) { - - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) { - isync(); - mtspr(SPRN_PID, next->context.id); - isync(); - asm volatile(PPC_INVALIDATE_ERAT : : :"memory"); - } else { - mtspr(SPRN_PID, next->context.id); - isync(); - } + mtspr(SPRN_PID, next->context.id); + isync(); } #endif diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c index 96f68c5aa1f5..efe549f707b3 100644 --- a/arch/powerpc/mm/pgtable-radix.c +++ b/arch/powerpc/mm/pgtable-radix.c @@ -226,16 +226,6 @@ void radix__mark_rodata_ro(void) { unsigned long start, end; - /* - * mark_rodata_ro() will mark itself as !writable at some point. - * Due to DD1 workaround in radix__pte_update(), we'll end up with - * an invalid pte and the system will crash quite severly. - */ - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) { - pr_warn("Warning: Unable to mark rodata read only on P9 DD1\n"); - return; - } - start = (unsigned long)_stext; end = (unsigned long)__init_begin; @@ -576,22 +566,12 @@ static void radix_init_amor(void) static void radix_init_iamr(void) { - unsigned long iamr; - - /* - * The IAMR should set to 0 on DD1. - */ - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) - iamr = 0; - else - iamr = (1ul << 62); - /* * Radix always uses key0 of the IAMR to determine if an access is * allowed. We set bit 0 (IBM bit 1) of key0, to prevent instruction * fetch. */ - mtspr(SPRN_IAMR, iamr); + mtspr(SPRN_IAMR, (1ul << 62)); } void __init radix__early_init_mmu(void) @@ -644,8 +624,6 @@ void __init radix__early_init_mmu(void) if (!firmware_has_feature(FW_FEATURE_LPAR)) { radix_init_native(); - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) - update_hid_for_radix(); lpcr = mfspr(SPRN_LPCR); mtspr(SPRN_LPCR, lpcr | LPCR_UPRT | LPCR_HR); radix_init_partition_table(); @@ -671,10 +649,6 @@ void radix__early_init_mmu_secondary(void) * update partition table control register and UPRT */ if (!firmware_has_feature(FW_FEATURE_LPAR)) { - - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) - update_hid_for_radix(); - lpcr = mfspr(SPRN_LPCR); mtspr(SPRN_LPCR, lpcr | LPCR_UPRT | LPCR_HR); @@ -1095,8 +1069,7 @@ void radix__ptep_set_access_flags(struct vm_area_struct *vma, pte_t *ptep, * To avoid NMMU hang while relaxing access, we need mark * the pte invalid in between. */ - if (cpu_has_feature(CPU_FTR_POWER9_DD1) || - atomic_read(&mm->context.copros) > 0) { + if (atomic_read(&mm->context.copros) > 0) { unsigned long old_pte, new_pte; old_pte = __radix_pte_update(ptep, ~0, 0); diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c index 67a6e86d3e7e..902767b8a9c1 100644 --- a/arch/powerpc/mm/tlb-radix.c +++ b/arch/powerpc/mm/tlb-radix.c @@ -994,24 +994,6 @@ void radix__flush_tlb_all(void) asm volatile("eieio; tlbsync; ptesync": : :"memory"); } -void radix__flush_tlb_pte_p9_dd1(unsigned long old_pte, struct mm_struct *mm, - unsigned long address) -{ - /* - * We track page size in pte only for DD1, So we can - * call this only on DD1. - */ - if (!cpu_has_feature(CPU_FTR_POWER9_DD1)) { - VM_WARN_ON(1); - return; - } - - if (old_pte & R_PAGE_LARGE) - radix__flush_tlb_page_psize(mm, address, MMU_PAGE_2M); - else - radix__flush_tlb_page_psize(mm, address, mmu_virtual_psize); -} - #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE extern void radix_kvm_prefetch_workaround(struct mm_struct *mm) { diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index 3f66fcf8ad99..19a0cf44744d 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -128,10 +128,6 @@ static inline void power_pmu_bhrb_disable(struct perf_event *event) {} static void power_pmu_sched_task(struct perf_event_context *ctx, bool sched_in) {} static inline void power_pmu_bhrb_read(struct cpu_hw_events *cpuhw) {} static void pmao_restore_workaround(bool ebb) { } -static bool use_ic(u64 event) -{ - return false; -} #endif /* CONFIG_PPC32 */ static bool regs_use_siar(struct pt_regs *regs) @@ -714,14 +710,6 @@ static void pmao_restore_workaround(bool ebb) mtspr(SPRN_PMC6, pmcs[5]); } -static bool use_ic(u64 event) -{ - if (cpu_has_feature(CPU_FTR_POWER9_DD1) && - (event == 0x200f2 || event == 0x300f2)) - return true; - - return false; -} #endif /* CONFIG_PPC64 */ static void perf_event_interrupt(struct pt_regs *regs); @@ -1056,13 +1044,6 @@ static void power_pmu_read(struct perf_event *event) if (is_ebb_event(event)) { val = read_pmc(event->hw.idx); - if (use_ic(event->attr.config)) { - val = mfspr(SPRN_IC); - if (val > cpuhw->ic_init) - val = val - cpuhw->ic_init; - else - val = val + (0 - cpuhw->ic_init); - } local64_set(&event->hw.prev_count, val); return; } @@ -1076,13 +1057,6 @@ static void power_pmu_read(struct perf_event *event) prev = local64_read(&event->hw.prev_count); barrier(); val = read_pmc(event->hw.idx); - if (use_ic(event->attr.config)) { - val = mfspr(SPRN_IC); - if (val > cpuhw->ic_init) - val = val - cpuhw->ic_init; - else - val = val + (0 - cpuhw->ic_init); - } delta = check_and_compute_delta(prev, val); if (!delta) return; @@ -1535,13 +1509,6 @@ static int power_pmu_add(struct perf_event *event, int ef_flags) event->attr.branch_sample_type); } - /* - * Workaround for POWER9 DD1 to use the Instruction Counter - * register value for instruction counting - */ - if (use_ic(event->attr.config)) - cpuhw->ic_init = mfspr(SPRN_IC); - perf_pmu_enable(event->pmu); local_irq_restore(flags); return ret; diff --git a/arch/powerpc/perf/isa207-common.c b/arch/powerpc/perf/isa207-common.c index 2efee3f196f5..177de814286f 100644 --- a/arch/powerpc/perf/isa207-common.c +++ b/arch/powerpc/perf/isa207-common.c @@ -59,7 +59,7 @@ static bool is_event_valid(u64 event) { u64 valid_mask = EVENT_VALID_MASK; - if (cpu_has_feature(CPU_FTR_ARCH_300) && !cpu_has_feature(CPU_FTR_POWER9_DD1)) + if (cpu_has_feature(CPU_FTR_ARCH_300)) valid_mask = p9_EVENT_VALID_MASK; return !(event & ~valid_mask); @@ -86,8 +86,6 @@ static void mmcra_sdar_mode(u64 event, unsigned long *mmcra) * Incase of Power9: * Marked event: MMCRA[SDAR_MODE] will be set to 0b00 ('No Updates'), * or if group already have any marked events. - * Non-Marked events (for DD1): - * MMCRA[SDAR_MODE] will be set to 0b01 * For rest * MMCRA[SDAR_MODE] will be set from event code. * If sdar_mode from event is zero, default to 0b01. Hardware @@ -96,7 +94,7 @@ static void mmcra_sdar_mode(u64 event, unsigned long *mmcra) if (cpu_has_feature(CPU_FTR_ARCH_300)) { if (is_event_marked(event) || (*mmcra & MMCRA_SAMPLE_ENABLE)) *mmcra &= MMCRA_SDAR_MODE_NO_UPDATES; - else if (!cpu_has_feature(CPU_FTR_POWER9_DD1) && p9_SDAR_MODE(event)) + else if (p9_SDAR_MODE(event)) *mmcra |= p9_SDAR_MODE(event) << MMCRA_SDAR_MODE_SHIFT; else *mmcra |= MMCRA_SDAR_MODE_DCACHE; @@ -106,7 +104,7 @@ static void mmcra_sdar_mode(u64 event, unsigned long *mmcra) static u64 thresh_cmp_val(u64 value) { - if (cpu_has_feature(CPU_FTR_ARCH_300) && !cpu_has_feature(CPU_FTR_POWER9_DD1)) + if (cpu_has_feature(CPU_FTR_ARCH_300)) return value << p9_MMCRA_THR_CMP_SHIFT; return value << MMCRA_THR_CMP_SHIFT; @@ -114,7 +112,7 @@ static u64 thresh_cmp_val(u64 value) static unsigned long combine_from_event(u64 event) { - if (cpu_has_feature(CPU_FTR_ARCH_300) && !cpu_has_feature(CPU_FTR_POWER9_DD1)) + if (cpu_has_feature(CPU_FTR_ARCH_300)) return p9_EVENT_COMBINE(event); return EVENT_COMBINE(event); @@ -122,7 +120,7 @@ static unsigned long combine_from_event(u64 event) static unsigned long combine_shift(unsigned long pmc) { - if (cpu_has_feature(CPU_FTR_ARCH_300) && !cpu_has_feature(CPU_FTR_POWER9_DD1)) + if (cpu_has_feature(CPU_FTR_ARCH_300)) return p9_MMCR1_COMBINE_SHIFT(pmc); return MMCR1_COMBINE_SHIFT(pmc); diff --git a/arch/powerpc/perf/isa207-common.h b/arch/powerpc/perf/isa207-common.h index 6a0b586c935a..0028f4b9490d 100644 --- a/arch/powerpc/perf/isa207-common.h +++ b/arch/powerpc/perf/isa207-common.h @@ -158,11 +158,6 @@ CNST_PMC_VAL(1) | CNST_PMC_VAL(2) | CNST_PMC_VAL(3) | \ CNST_PMC_VAL(4) | CNST_PMC_VAL(5) | CNST_PMC_VAL(6) | CNST_NC_VAL -/* - * Lets restrict use of PMC5 for instruction counting. - */ -#define P9_DD1_TEST_ADDER (ISA207_TEST_ADDER | CNST_PMC_VAL(5)) - /* Bits in MMCR1 for PowerISA v2.07 */ #define MMCR1_UNIT_SHIFT(pmc) (60 - (4 * ((pmc) - 1))) #define MMCR1_COMBINE_SHIFT(pmc) (35 - ((pmc) - 1)) diff --git a/arch/powerpc/perf/power9-pmu.c b/arch/powerpc/perf/power9-pmu.c index 2ca0b33b4efb..56124dd1a82c 100644 --- a/arch/powerpc/perf/power9-pmu.c +++ b/arch/powerpc/perf/power9-pmu.c @@ -439,25 +439,6 @@ static int power9_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { #undef C -static struct power_pmu power9_isa207_pmu = { - .name = "POWER9", - .n_counter = MAX_PMU_COUNTERS, - .add_fields = ISA207_ADD_FIELDS, - .test_adder = P9_DD1_TEST_ADDER, - .compute_mmcr = isa207_compute_mmcr, - .config_bhrb = power9_config_bhrb, - .bhrb_filter_map = power9_bhrb_filter_map, - .get_constraint = isa207_get_constraint, - .get_alternatives = power9_get_alternatives, - .disable_pmc = isa207_disable_pmc, - .flags = PPMU_NO_SIAR | PPMU_ARCH_207S, - .n_generic = ARRAY_SIZE(power9_generic_events_dd1), - .generic_events = power9_generic_events_dd1, - .cache_events = &power9_cache_events, - .attr_groups = power9_isa207_pmu_attr_groups, - .bhrb_nr = 32, -}; - static struct power_pmu power9_pmu = { .name = "POWER9", .n_counter = MAX_PMU_COUNTERS, @@ -500,23 +481,7 @@ static int __init init_power9_pmu(void) } } - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) { - /* - * Since PM_INST_CMPL may not provide right counts in all - * sampling scenarios in power9 DD1, instead use PM_INST_DISP. - */ - EVENT_VAR(PM_INST_CMPL, _g).id = PM_INST_DISP; - /* - * Power9 DD1 should use PM_BR_CMPL_ALT event code for - * "branches" to provide correct counter value. - */ - EVENT_VAR(PM_BR_CMPL, _g).id = PM_BR_CMPL_ALT; - EVENT_VAR(PM_BR_CMPL, _c).id = PM_BR_CMPL_ALT; - rc = register_power_pmu(&power9_isa207_pmu); - } else { - rc = register_power_pmu(&power9_pmu); - } - + rc = register_power_pmu(&power9_pmu); if (rc) return rc; diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c index 1c5d0675b43c..12f13acee1f6 100644 --- a/arch/powerpc/platforms/powernv/idle.c +++ b/arch/powerpc/platforms/powernv/idle.c @@ -177,11 +177,6 @@ static void pnv_alloc_idle_core_states(void) paca_ptrs[cpu]->core_idle_state_ptr = core_idle_state; paca_ptrs[cpu]->thread_idle_state = PNV_THREAD_RUNNING; paca_ptrs[cpu]->thread_mask = 1 << j; - if (!cpu_has_feature(CPU_FTR_POWER9_DD1)) - continue; - paca_ptrs[cpu]->thread_sibling_pacas = - kmalloc_node(paca_ptr_array_size, - GFP_KERNEL, node); } } @@ -805,29 +800,6 @@ static int __init pnv_init_idle_states(void) pnv_alloc_idle_core_states(); - /* - * For each CPU, record its PACA address in each of it's - * sibling thread's PACA at the slot corresponding to this - * CPU's index in the core. - */ - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) { - int cpu; - - pr_info("powernv: idle: Saving PACA pointers of all CPUs in their thread sibling PACA\n"); - for_each_present_cpu(cpu) { - int base_cpu = cpu_first_thread_sibling(cpu); - int idx = cpu_thread_in_core(cpu); - int i; - - for (i = 0; i < threads_per_core; i++) { - int j = base_cpu + i; - - paca_ptrs[j]->thread_sibling_pacas[idx] = - paca_ptrs[cpu]; - } - } - } - if (supported_cpuidle_states & OPAL_PM_NAP_ENABLED) ppc_md.power_save = power7_idle; diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c index b80909957792..0d354e19ef92 100644 --- a/arch/powerpc/platforms/powernv/smp.c +++ b/arch/powerpc/platforms/powernv/smp.c @@ -283,23 +283,6 @@ static void pnv_cause_ipi(int cpu) ic_cause_ipi(cpu); } -static void pnv_p9_dd1_cause_ipi(int cpu) -{ - int this_cpu = get_cpu(); - - /* - * POWER9 DD1 has a global addressed msgsnd, but for now we restrict - * IPIs to same core, because it requires additional synchronization - * for inter-core doorbells which we do not implement. - */ - if (cpumask_test_cpu(cpu, cpu_sibling_mask(this_cpu))) - doorbell_global_ipi(cpu); - else - ic_cause_ipi(cpu); - - put_cpu(); -} - static void __init pnv_smp_probe(void) { if (xive_enabled()) @@ -311,14 +294,10 @@ static void __init pnv_smp_probe(void) ic_cause_ipi = smp_ops->cause_ipi; WARN_ON(!ic_cause_ipi); - if (cpu_has_feature(CPU_FTR_ARCH_300)) { - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) - smp_ops->cause_ipi = pnv_p9_dd1_cause_ipi; - else - smp_ops->cause_ipi = doorbell_global_ipi; - } else { + if (cpu_has_feature(CPU_FTR_ARCH_300)) + smp_ops->cause_ipi = doorbell_global_ipi; + else smp_ops->cause_ipi = pnv_cause_ipi; - } } } diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 47166ad2a669..21119cfe8474 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -2429,7 +2429,6 @@ static void dump_one_paca(int cpu) DUMP(p, thread_idle_state, "%#-*x"); DUMP(p, thread_mask, "%#-*x"); DUMP(p, subcore_sibling_mask, "%#-*x"); - DUMP(p, thread_sibling_pacas, "%-*px"); DUMP(p, requested_psscr, "%#-*llx"); DUMP(p, stop_sprs.pid, "%#-*llx"); DUMP(p, stop_sprs.ldbar, "%#-*llx"); diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index 918d4fb742d1..505f973e13f3 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -865,14 +865,6 @@ static inline bool cxl_is_power9(void) return false; } -static inline bool cxl_is_power9_dd1(void) -{ - if ((pvr_version_is(PVR_POWER9)) && - cpu_has_feature(CPU_FTR_POWER9_DD1)) - return true; - return false; -} - ssize_t cxl_pci_afu_read_err_buffer(struct cxl_afu *afu, char *buf, loff_t off, size_t count); diff --git a/drivers/misc/cxl/cxllib.c b/drivers/misc/cxl/cxllib.c index 0bc7c31cf739..5a3f91255258 100644 --- a/drivers/misc/cxl/cxllib.c +++ b/drivers/misc/cxl/cxllib.c @@ -102,10 +102,6 @@ int cxllib_get_xsl_config(struct pci_dev *dev, struct cxllib_xsl_config *cfg) rc = cxl_get_xsl9_dsnctl(dev, capp_unit_id, &cfg->dsnctl); if (rc) return rc; - if (cpu_has_feature(CPU_FTR_POWER9_DD1)) { - /* workaround for DD1 - nbwind = capiind */ - cfg->dsnctl |= ((u64)0x02 << (63-47)); - } cfg->version = CXL_XSL_CONFIG_CURRENT_VERSION; cfg->log_bar_size = CXL_CAPI_WINDOW_LOG_SIZE; diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c index 429d6de1dde7..2af0d4c47b76 100644 --- a/drivers/misc/cxl/pci.c +++ b/drivers/misc/cxl/pci.c @@ -465,23 +465,21 @@ int cxl_get_xsl9_dsnctl(struct pci_dev *dev, u64 capp_unit_id, u64 *reg) /* nMMU_ID Defaults to: b’000001001’*/ xsl_dsnctl |= ((u64)0x09 << (63-28)); - if (!(cxl_is_power9_dd1())) { - /* - * Used to identify CAPI packets which should be sorted into - * the Non-Blocking queues by the PHB. This field should match - * the PHB PBL_NBW_CMPM register - * nbwind=0x03, bits [57:58], must include capi indicator. - * Not supported on P9 DD1. - */ - xsl_dsnctl |= (nbwind << (63-55)); + /* + * Used to identify CAPI packets which should be sorted into + * the Non-Blocking queues by the PHB. This field should match + * the PHB PBL_NBW_CMPM register + * nbwind=0x03, bits [57:58], must include capi indicator. + * Not supported on P9 DD1. + */ + xsl_dsnctl |= (nbwind << (63-55)); - /* - * Upper 16b address bits of ASB_Notify messages sent to the - * system. Need to match the PHB’s ASN Compare/Mask Register. - * Not supported on P9 DD1. - */ - xsl_dsnctl |= asnind; - } + /* + * Upper 16b address bits of ASB_Notify messages sent to the + * system. Need to match the PHB’s ASN Compare/Mask Register. + * Not supported on P9 DD1. + */ + xsl_dsnctl |= asnind; *reg = xsl_dsnctl; return 0; @@ -539,15 +537,8 @@ static int init_implementation_adapter_regs_psl9(struct cxl *adapter, /* Snoop machines */ cxl_p1_write(adapter, CXL_PSL9_APCDEDALLOC, 0x800F000200000000ULL); - if (cxl_is_power9_dd1()) { - /* Disabling deadlock counter CAR */ - cxl_p1_write(adapter, CXL_PSL9_GP_CT, 0x0020000000000001ULL); - /* Enable NORST */ - cxl_p1_write(adapter, CXL_PSL9_DEBUG, 0x8000000000000000ULL); - } else { - /* Enable NORST and DD2 features */ - cxl_p1_write(adapter, CXL_PSL9_DEBUG, 0xC000000000000000ULL); - } + /* Enable NORST and DD2 features */ + cxl_p1_write(adapter, CXL_PSL9_DEBUG, 0xC000000000000000ULL); /* * Check if PSL has data-cache. We need to flush adapter datacache -- 2.17.0