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| author |   Alistair Popple <alistair@popple.id.au> | 2020-05-21 11:43:41 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-06-02 20:59:20 +1000 |
| commit | a3ea40d5c7365e7e5c7c85b6f30b15142b397571 (patch) | |
| tree | 532cf6685dc2d13a0d70826e9824dbe2eac81352 /arch/powerpc/kernel/prom_init.c | |
| parent | powerpc/dt_cpu_ftrs: Add MMA feature (diff) | |
| download | linux-dev-a3ea40d5c7365e7e5c7c85b6f30b15142b397571.tar.xz linux-dev-a3ea40d5c7365e7e5c7c85b6f30b15142b397571.zip | |
powerpc: Add POWER10 architected mode
PVR value of 0x0F000006 means we are arch v3.1 compliant (i.e.
POWER10). This is used by phyp and kvm when booting as a pseries guest
to detect the presence of new P10 features and to enable the
appropriate hwcap and facility bits.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
[mpe: Fall through to __init_FSCR rather than duplicating it, drop
hack to set current->thread.fscr now that is handled elsewhere.]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200521014341.29095-8-alistair@popple.id.au
Diffstat (limited to 'arch/powerpc/kernel/prom_init.c')
| -rw-r--r-- | arch/powerpc/kernel/prom_init.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index e3a9fde51c4f..5f15b10eb007 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -920,7 +920,7 @@ struct option_vector6 { } __packed; struct ibm_arch_vec { - struct { u32 mask, val; } pvrs[12]; + struct { u32 mask, val; } pvrs[14]; u8 num_vectors; @@ -974,6 +974,14 @@ static const struct ibm_arch_vec ibm_architecture_vec_template __initconst = { .val = cpu_to_be32(0x004e0000), }, { + .mask = cpu_to_be32(0xffff0000), /* POWER10 */ + .val = cpu_to_be32(0x00800000), + }, + { + .mask = cpu_to_be32(0xffffffff), /* all 3.1-compliant */ + .val = cpu_to_be32(0x0f000006), + }, + { .mask = cpu_to_be32(0xffffffff), /* all 3.00-compliant */ .val = cpu_to_be32(0x0f000005), }, @@ -1002,7 +1010,7 @@ static const struct ibm_arch_vec ibm_architecture_vec_template __initconst = { .byte1 = 0, .arch_versions = OV1_PPC_2_00 | OV1_PPC_2_01 | OV1_PPC_2_02 | OV1_PPC_2_03 | OV1_PPC_2_04 | OV1_PPC_2_05 | OV1_PPC_2_06 | OV1_PPC_2_07, - .arch_versions3 = OV1_PPC_3_00, + .arch_versions3 = OV1_PPC_3_00 | OV1_PPC_3_1, }, .vec2_len = VECTOR_LENGTH(sizeof(struct option_vector2)), |