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powerpc: Add PVN support for HeXin C2000 processor

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HeXin Tech Co. has applied for a new PVN from the OpenPower Community
for its new processor C2000. The OpenPower has assigned a new PVN
and this newly assigned PVN is 0x0066, add pvr register related
support for this PVN.

Signed-off-by: Zhao Ke <ke.zhao@shingroup.cn>
Link: https://discuss.openpower.foundation/t/how-to-get-a-new-pvr-for-processors-follow-power-isa/477/10
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231129075845.57976-1-ke.zhao@shingroup.cn
This commit is contained in:
Zhao Ke 2023-11-29 15:58:45 +08:00 committed by Michael Ellerman
parent f8d3555355
commit e12d8e2602
6 changed files with 23 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/powerpc/include/asm/reg.h
View File

@ -1361,6 +1361,7 @@
#define PVR_POWER8E 0x004B
#define PVR_POWER8NVL 0x004C
#define PVR_POWER8 0x004D
#define PVR_HX_C2000 0x0066
#define PVR_POWER9 0x004E
#define PVR_POWER10 0x0080
#define PVR_BE 0x0070

15
arch/powerpc/kernel/cpu_specs_book3s_64.h
View File

@ -238,6 +238,21 @@ static struct cpu_spec cpu_specs[] __initdata = {
.machine_check_early = __machine_check_early_realmode_p8,
.platform = "power8",
},
{ /* 2.07-compliant processor, HeXin C2000 processor */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00660000,
.cpu_name = "HX-C2000",
.cpu_features = CPU_FTRS_POWER8,
.cpu_user_features = COMMON_USER_POWER8,
.cpu_user_features2 = COMMON_USER2_POWER8,
.mmu_features = MMU_FTRS_POWER8,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power8,
.cpu_restore = __restore_cpu_power8,
.machine_check_early = __machine_check_early_realmode_p8,
.platform = "power8",
},
{ /* 3.00-compliant processor, i.e. Power9 "architected" mode */
.pvr_mask = 0xffffffff,
.pvr_value = 0x0f000005,

1
arch/powerpc/kvm/book3s_pr.c
View File

@ -604,6 +604,7 @@ static void kvmppc_set_pvr_pr(struct kvm_vcpu *vcpu, u32 pvr)
case PVR_POWER8:
case PVR_POWER8E:
case PVR_POWER8NVL:
case PVR_HX_C2000:
case PVR_POWER9:
vcpu->arch.hflags |= BOOK3S_HFLAG_MULTI_PGSIZE |
BOOK3S_HFLAG_NEW_TLBIE;

3
arch/powerpc/mm/book3s64/pkeys.c
View File

@ -89,7 +89,8 @@ static int __init scan_pkey_feature(void)
unsigned long pvr = mfspr(SPRN_PVR);
if (PVR_VER(pvr) == PVR_POWER8 || PVR_VER(pvr) == PVR_POWER8E ||
PVR_VER(pvr) == PVR_POWER8NVL || PVR_VER(pvr) == PVR_POWER9)
PVR_VER(pvr) == PVR_POWER8NVL || PVR_VER(pvr) == PVR_POWER9 ||
PVR_VER(pvr) == PVR_HX_C2000)
pkeys_total = 32;
}
}

3
arch/powerpc/platforms/powernv/subcore.c
View File

@ -425,7 +425,8 @@ static int subcore_init(void)
if (pvr_ver != PVR_POWER8 &&
pvr_ver != PVR_POWER8E &&
pvr_ver != PVR_POWER8NVL)
pvr_ver != PVR_POWER8NVL &&
pvr_ver != PVR_HX_C2000)
return 0;
/*

3
drivers/misc/cxl/cxl.h
View File

@ -836,7 +836,8 @@ static inline bool cxl_is_power8(void)
{
if ((pvr_version_is(PVR_POWER8E)) ||
(pvr_version_is(PVR_POWER8NVL)) ||
(pvr_version_is(PVR_POWER8)))
(pvr_version_is(PVR_POWER8)) ||
(pvr_version_is(PVR_HX_C2000)))
return true;
return false;
}