Skip to content

Commit

Permalink
Merge remote-tracking branch 'arm64/for-next/sysreg' into kvmarm-mast…
Browse files Browse the repository at this point in the history
…er/next

Merge arm64/for-next/sysreg in order to avoid upstream conflicts
due to the never ending sysreg repainting...

Signed-off-by: Marc Zyngier <maz@kernel.org>
  • Loading branch information
Marc Zyngier committed Sep 19, 2022
2 parents c317c6d + 10453bf commit b04b331
Show file tree
Hide file tree
Showing 30 changed files with 774 additions and 490 deletions.
10 changes: 5 additions & 5 deletions arch/arm64/include/asm/assembler.h
Original file line number Diff line number Diff line change
Expand Up @@ -384,8 +384,8 @@ alternative_cb_end
.macro tcr_compute_pa_size, tcr, pos, tmp0, tmp1
mrs \tmp0, ID_AA64MMFR0_EL1
// Narrow PARange to fit the PS field in TCR_ELx
ubfx \tmp0, \tmp0, #ID_AA64MMFR0_PARANGE_SHIFT, #3
mov \tmp1, #ID_AA64MMFR0_PARANGE_MAX
ubfx \tmp0, \tmp0, #ID_AA64MMFR0_EL1_PARANGE_SHIFT, #3
mov \tmp1, #ID_AA64MMFR0_EL1_PARANGE_MAX
cmp \tmp0, \tmp1
csel \tmp0, \tmp1, \tmp0, hi
bfi \tcr, \tmp0, \pos, #3
Expand Down Expand Up @@ -512,7 +512,7 @@ alternative_endif
*/
.macro reset_pmuserenr_el0, tmpreg
mrs \tmpreg, id_aa64dfr0_el1
sbfx \tmpreg, \tmpreg, #ID_AA64DFR0_PMUVER_SHIFT, #4
sbfx \tmpreg, \tmpreg, #ID_AA64DFR0_EL1_PMUVer_SHIFT, #4
cmp \tmpreg, #1 // Skip if no PMU present
b.lt 9000f
msr pmuserenr_el0, xzr // Disable PMU access from EL0
Expand All @@ -524,7 +524,7 @@ alternative_endif
*/
.macro reset_amuserenr_el0, tmpreg
mrs \tmpreg, id_aa64pfr0_el1 // Check ID_AA64PFR0_EL1
ubfx \tmpreg, \tmpreg, #ID_AA64PFR0_AMU_SHIFT, #4
ubfx \tmpreg, \tmpreg, #ID_AA64PFR0_EL1_AMU_SHIFT, #4
cbz \tmpreg, .Lskip_\@ // Skip if no AMU present
msr_s SYS_AMUSERENR_EL0, xzr // Disable AMU access from EL0
.Lskip_\@:
Expand Down Expand Up @@ -612,7 +612,7 @@ alternative_endif
.macro offset_ttbr1, ttbr, tmp
#ifdef CONFIG_ARM64_VA_BITS_52
mrs_s \tmp, SYS_ID_AA64MMFR2_EL1
and \tmp, \tmp, #(0xf << ID_AA64MMFR2_LVA_SHIFT)
and \tmp, \tmp, #(0xf << ID_AA64MMFR2_EL1_VARange_SHIFT)
cbnz \tmp, .Lskipoffs_\@
orr \ttbr, \ttbr, #TTBR1_BADDR_4852_OFFSET
.Lskipoffs_\@ :
Expand Down
4 changes: 0 additions & 4 deletions arch/arm64/include/asm/cache.h
Original file line number Diff line number Diff line change
Expand Up @@ -45,10 +45,6 @@ static inline unsigned int arch_slab_minalign(void)
#define arch_slab_minalign() arch_slab_minalign()
#endif

#define CTR_CACHE_MINLINE_MASK \
(0xf << CTR_EL0_DMINLINE_SHIFT | \
CTR_EL0_IMINLINE_MASK << CTR_EL0_IMINLINE_SHIFT)

#define CTR_L1IP(ctr) SYS_FIELD_GET(CTR_EL0, L1Ip, ctr)

#define ICACHEF_ALIASING 0
Expand Down
66 changes: 33 additions & 33 deletions arch/arm64/include/asm/cpufeature.h
Original file line number Diff line number Diff line change
Expand Up @@ -553,7 +553,7 @@ cpuid_feature_cap_perfmon_field(u64 features, int field, u64 cap)
u64 mask = GENMASK_ULL(field + 3, field);

/* Treat IMPLEMENTATION DEFINED functionality as unimplemented */
if (val == ID_AA64DFR0_PMUVER_IMP_DEF)
if (val == ID_AA64DFR0_EL1_PMUVer_IMP_DEF)
val = 0;

if (val > cap) {
Expand Down Expand Up @@ -597,43 +597,43 @@ static inline s64 arm64_ftr_value(const struct arm64_ftr_bits *ftrp, u64 val)

static inline bool id_aa64mmfr0_mixed_endian_el0(u64 mmfr0)
{
return cpuid_feature_extract_unsigned_field(mmfr0, ID_AA64MMFR0_BIGENDEL_SHIFT) == 0x1 ||
cpuid_feature_extract_unsigned_field(mmfr0, ID_AA64MMFR0_BIGENDEL0_SHIFT) == 0x1;
return cpuid_feature_extract_unsigned_field(mmfr0, ID_AA64MMFR0_EL1_BIGEND_SHIFT) == 0x1 ||
cpuid_feature_extract_unsigned_field(mmfr0, ID_AA64MMFR0_EL1_BIGENDEL0_SHIFT) == 0x1;
}

static inline bool id_aa64pfr0_32bit_el1(u64 pfr0)
{
u32 val = cpuid_feature_extract_unsigned_field(pfr0, ID_AA64PFR0_EL1_SHIFT);
u32 val = cpuid_feature_extract_unsigned_field(pfr0, ID_AA64PFR0_EL1_EL1_SHIFT);

return val == ID_AA64PFR0_ELx_32BIT_64BIT;
return val == ID_AA64PFR0_EL1_ELx_32BIT_64BIT;
}

static inline bool id_aa64pfr0_32bit_el0(u64 pfr0)
{
u32 val = cpuid_feature_extract_unsigned_field(pfr0, ID_AA64PFR0_EL0_SHIFT);
u32 val = cpuid_feature_extract_unsigned_field(pfr0, ID_AA64PFR0_EL1_EL0_SHIFT);

return val == ID_AA64PFR0_ELx_32BIT_64BIT;
return val == ID_AA64PFR0_EL1_ELx_32BIT_64BIT;
}

static inline bool id_aa64pfr0_sve(u64 pfr0)
{
u32 val = cpuid_feature_extract_unsigned_field(pfr0, ID_AA64PFR0_SVE_SHIFT);
u32 val = cpuid_feature_extract_unsigned_field(pfr0, ID_AA64PFR0_EL1_SVE_SHIFT);

return val > 0;
}

static inline bool id_aa64pfr1_sme(u64 pfr1)
{
u32 val = cpuid_feature_extract_unsigned_field(pfr1, ID_AA64PFR1_SME_SHIFT);
u32 val = cpuid_feature_extract_unsigned_field(pfr1, ID_AA64PFR1_EL1_SME_SHIFT);

return val > 0;
}

static inline bool id_aa64pfr1_mte(u64 pfr1)
{
u32 val = cpuid_feature_extract_unsigned_field(pfr1, ID_AA64PFR1_MTE_SHIFT);
u32 val = cpuid_feature_extract_unsigned_field(pfr1, ID_AA64PFR1_EL1_MTE_SHIFT);

return val >= ID_AA64PFR1_MTE;
return val >= ID_AA64PFR1_EL1_MTE_MTE2;
}

void __init setup_cpu_features(void);
Expand All @@ -659,7 +659,7 @@ static inline bool supports_csv2p3(int scope)
pfr0 = read_sanitised_ftr_reg(SYS_ID_AA64PFR0_EL1);

csv2_val = cpuid_feature_extract_unsigned_field(pfr0,
ID_AA64PFR0_CSV2_SHIFT);
ID_AA64PFR0_EL1_CSV2_SHIFT);
return csv2_val == 3;
}

Expand Down Expand Up @@ -694,10 +694,10 @@ static inline bool system_supports_4kb_granule(void)

mmfr0 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1);
val = cpuid_feature_extract_unsigned_field(mmfr0,
ID_AA64MMFR0_TGRAN4_SHIFT);
ID_AA64MMFR0_EL1_TGRAN4_SHIFT);

return (val >= ID_AA64MMFR0_TGRAN4_SUPPORTED_MIN) &&
(val <= ID_AA64MMFR0_TGRAN4_SUPPORTED_MAX);
return (val >= ID_AA64MMFR0_EL1_TGRAN4_SUPPORTED_MIN) &&
(val <= ID_AA64MMFR0_EL1_TGRAN4_SUPPORTED_MAX);
}

static inline bool system_supports_64kb_granule(void)
Expand All @@ -707,10 +707,10 @@ static inline bool system_supports_64kb_granule(void)

mmfr0 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1);
val = cpuid_feature_extract_unsigned_field(mmfr0,
ID_AA64MMFR0_TGRAN64_SHIFT);
ID_AA64MMFR0_EL1_TGRAN64_SHIFT);

return (val >= ID_AA64MMFR0_TGRAN64_SUPPORTED_MIN) &&
(val <= ID_AA64MMFR0_TGRAN64_SUPPORTED_MAX);
return (val >= ID_AA64MMFR0_EL1_TGRAN64_SUPPORTED_MIN) &&
(val <= ID_AA64MMFR0_EL1_TGRAN64_SUPPORTED_MAX);
}

static inline bool system_supports_16kb_granule(void)
Expand All @@ -720,10 +720,10 @@ static inline bool system_supports_16kb_granule(void)

mmfr0 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1);
val = cpuid_feature_extract_unsigned_field(mmfr0,
ID_AA64MMFR0_TGRAN16_SHIFT);
ID_AA64MMFR0_EL1_TGRAN16_SHIFT);

return (val >= ID_AA64MMFR0_TGRAN16_SUPPORTED_MIN) &&
(val <= ID_AA64MMFR0_TGRAN16_SUPPORTED_MAX);
return (val >= ID_AA64MMFR0_EL1_TGRAN16_SUPPORTED_MIN) &&
(val <= ID_AA64MMFR0_EL1_TGRAN16_SUPPORTED_MAX);
}

static inline bool system_supports_mixed_endian_el0(void)
Expand All @@ -738,7 +738,7 @@ static inline bool system_supports_mixed_endian(void)

mmfr0 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1);
val = cpuid_feature_extract_unsigned_field(mmfr0,
ID_AA64MMFR0_BIGENDEL_SHIFT);
ID_AA64MMFR0_EL1_BIGEND_SHIFT);

return val == 0x1;
}
Expand Down Expand Up @@ -840,13 +840,13 @@ extern int do_emulate_mrs(struct pt_regs *regs, u32 sys_reg, u32 rt);
static inline u32 id_aa64mmfr0_parange_to_phys_shift(int parange)
{
switch (parange) {
case ID_AA64MMFR0_PARANGE_32: return 32;
case ID_AA64MMFR0_PARANGE_36: return 36;
case ID_AA64MMFR0_PARANGE_40: return 40;
case ID_AA64MMFR0_PARANGE_42: return 42;
case ID_AA64MMFR0_PARANGE_44: return 44;
case ID_AA64MMFR0_PARANGE_48: return 48;
case ID_AA64MMFR0_PARANGE_52: return 52;
case ID_AA64MMFR0_EL1_PARANGE_32: return 32;
case ID_AA64MMFR0_EL1_PARANGE_36: return 36;
case ID_AA64MMFR0_EL1_PARANGE_40: return 40;
case ID_AA64MMFR0_EL1_PARANGE_42: return 42;
case ID_AA64MMFR0_EL1_PARANGE_44: return 44;
case ID_AA64MMFR0_EL1_PARANGE_48: return 48;
case ID_AA64MMFR0_EL1_PARANGE_52: return 52;
/*
* A future PE could use a value unknown to the kernel.
* However, by the "D10.1.4 Principles of the ID scheme
Expand All @@ -868,14 +868,14 @@ static inline bool cpu_has_hw_af(void)

mmfr1 = read_cpuid(ID_AA64MMFR1_EL1);
return cpuid_feature_extract_unsigned_field(mmfr1,
ID_AA64MMFR1_HADBS_SHIFT);
ID_AA64MMFR1_EL1_HAFDBS_SHIFT);
}

static inline bool cpu_has_pan(void)
{
u64 mmfr1 = read_cpuid(ID_AA64MMFR1_EL1);
return cpuid_feature_extract_unsigned_field(mmfr1,
ID_AA64MMFR1_PAN_SHIFT);
ID_AA64MMFR1_EL1_PAN_SHIFT);
}

#ifdef CONFIG_ARM64_AMU_EXTN
Expand All @@ -896,8 +896,8 @@ static inline unsigned int get_vmid_bits(u64 mmfr1)
int vmid_bits;

vmid_bits = cpuid_feature_extract_unsigned_field(mmfr1,
ID_AA64MMFR1_VMIDBITS_SHIFT);
if (vmid_bits == ID_AA64MMFR1_VMIDBITS_16)
ID_AA64MMFR1_EL1_VMIDBits_SHIFT);
if (vmid_bits == ID_AA64MMFR1_EL1_VMIDBits_16)
return 16;

/*
Expand Down
18 changes: 9 additions & 9 deletions arch/arm64/include/asm/el2_setup.h
Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,7 @@

.macro __init_el2_debug
mrs x1, id_aa64dfr0_el1
sbfx x0, x1, #ID_AA64DFR0_PMUVER_SHIFT, #4
sbfx x0, x1, #ID_AA64DFR0_EL1_PMUVer_SHIFT, #4
cmp x0, #1
b.lt .Lskip_pmu_\@ // Skip if no PMU present
mrs x0, pmcr_el0 // Disable debug access traps
Expand All @@ -49,7 +49,7 @@
csel x2, xzr, x0, lt // all PMU counters from EL1

/* Statistical profiling */
ubfx x0, x1, #ID_AA64DFR0_PMSVER_SHIFT, #4
ubfx x0, x1, #ID_AA64DFR0_EL1_PMSVer_SHIFT, #4
cbz x0, .Lskip_spe_\@ // Skip if SPE not present

mrs_s x0, SYS_PMBIDR_EL1 // If SPE available at EL2,
Expand All @@ -65,7 +65,7 @@

.Lskip_spe_\@:
/* Trace buffer */
ubfx x0, x1, #ID_AA64DFR0_TRBE_SHIFT, #4
ubfx x0, x1, #ID_AA64DFR0_EL1_TraceBuffer_SHIFT, #4
cbz x0, .Lskip_trace_\@ // Skip if TraceBuffer is not present

mrs_s x0, SYS_TRBIDR_EL1
Expand All @@ -83,7 +83,7 @@
/* LORegions */
.macro __init_el2_lor
mrs x1, id_aa64mmfr1_el1
ubfx x0, x1, #ID_AA64MMFR1_LOR_SHIFT, 4
ubfx x0, x1, #ID_AA64MMFR1_EL1_LO_SHIFT, 4
cbz x0, .Lskip_lor_\@
msr_s SYS_LORC_EL1, xzr
.Lskip_lor_\@:
Expand All @@ -97,7 +97,7 @@
/* GICv3 system register access */
.macro __init_el2_gicv3
mrs x0, id_aa64pfr0_el1
ubfx x0, x0, #ID_AA64PFR0_GIC_SHIFT, #4
ubfx x0, x0, #ID_AA64PFR0_EL1_GIC_SHIFT, #4
cbz x0, .Lskip_gicv3_\@

mrs_s x0, SYS_ICC_SRE_EL2
Expand Down Expand Up @@ -132,12 +132,12 @@
/* Disable any fine grained traps */
.macro __init_el2_fgt
mrs x1, id_aa64mmfr0_el1
ubfx x1, x1, #ID_AA64MMFR0_FGT_SHIFT, #4
ubfx x1, x1, #ID_AA64MMFR0_EL1_FGT_SHIFT, #4
cbz x1, .Lskip_fgt_\@

mov x0, xzr
mrs x1, id_aa64dfr0_el1
ubfx x1, x1, #ID_AA64DFR0_PMSVER_SHIFT, #4
ubfx x1, x1, #ID_AA64DFR0_EL1_PMSVer_SHIFT, #4
cmp x1, #3
b.lt .Lset_debug_fgt_\@
/* Disable PMSNEVFR_EL1 read and write traps */
Expand All @@ -149,7 +149,7 @@

mov x0, xzr
mrs x1, id_aa64pfr1_el1
ubfx x1, x1, #ID_AA64PFR1_SME_SHIFT, #4
ubfx x1, x1, #ID_AA64PFR1_EL1_SME_SHIFT, #4
cbz x1, .Lset_fgt_\@

/* Disable nVHE traps of TPIDR2 and SMPRI */
Expand All @@ -162,7 +162,7 @@
msr_s SYS_HFGITR_EL2, xzr

mrs x1, id_aa64pfr0_el1 // AMU traps UNDEF without AMU
ubfx x1, x1, #ID_AA64PFR0_AMU_SHIFT, #4
ubfx x1, x1, #ID_AA64PFR0_EL1_AMU_SHIFT, #4
cbz x1, .Lskip_fgt_\@

msr_s SYS_HAFGRTR_EL2, xzr
Expand Down
4 changes: 2 additions & 2 deletions arch/arm64/include/asm/hw_breakpoint.h
Original file line number Diff line number Diff line change
Expand Up @@ -142,7 +142,7 @@ static inline int get_num_brps(void)
u64 dfr0 = read_sanitised_ftr_reg(SYS_ID_AA64DFR0_EL1);
return 1 +
cpuid_feature_extract_unsigned_field(dfr0,
ID_AA64DFR0_BRPS_SHIFT);
ID_AA64DFR0_EL1_BRPs_SHIFT);
}

/* Determine number of WRP registers available. */
Expand All @@ -151,7 +151,7 @@ static inline int get_num_wrps(void)
u64 dfr0 = read_sanitised_ftr_reg(SYS_ID_AA64DFR0_EL1);
return 1 +
cpuid_feature_extract_unsigned_field(dfr0,
ID_AA64DFR0_WRPS_SHIFT);
ID_AA64DFR0_EL1_WRPs_SHIFT);
}

#endif /* __ASM_BREAKPOINT_H */
6 changes: 3 additions & 3 deletions arch/arm64/include/asm/kvm_pgtable.h
Original file line number Diff line number Diff line change
Expand Up @@ -16,9 +16,9 @@
static inline u64 kvm_get_parange(u64 mmfr0)
{
u64 parange = cpuid_feature_extract_unsigned_field(mmfr0,
ID_AA64MMFR0_PARANGE_SHIFT);
if (parange > ID_AA64MMFR0_PARANGE_MAX)
parange = ID_AA64MMFR0_PARANGE_MAX;
ID_AA64MMFR0_EL1_PARANGE_SHIFT);
if (parange > ID_AA64MMFR0_EL1_PARANGE_MAX)
parange = ID_AA64MMFR0_EL1_PARANGE_MAX;

return parange;
}
Expand Down
Loading

0 comments on commit b04b331

Please sign in to comment.