diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2024-02-01 14:33:26 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-02-01 15:12:37 -0800 |
| commit | cf244463a286ea57ea7e63c33614d302f776e62e (patch) | |
| tree | caa068596cbfea621376822e30ab545c6516b2c7 /arch/x86/kernel/cpu/amd.c | |
| parent | cacfd6bfc381ce0e71dfb4ab902ca0fb0e1abe0f (diff) | |
| parent | 41b9fb381a486360b2daaec0c7480f8e3ff72bc7 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
No conflicts or adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'arch/x86/kernel/cpu/amd.c')
| -rw-r--r-- | arch/x86/kernel/cpu/amd.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 9f42d1c59e09..f3abca334199 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -538,7 +538,7 @@ static void bsp_init_amd(struct cpuinfo_x86 *c) /* Figure out Zen generations: */ switch (c->x86) { - case 0x17: { + case 0x17: switch (c->x86_model) { case 0x00 ... 0x2f: case 0x50 ... 0x5f: @@ -554,8 +554,8 @@ static void bsp_init_amd(struct cpuinfo_x86 *c) goto warn; } break; - } - case 0x19: { + + case 0x19: switch (c->x86_model) { case 0x00 ... 0x0f: case 0x20 ... 0x5f: @@ -569,7 +569,20 @@ static void bsp_init_amd(struct cpuinfo_x86 *c) goto warn; } break; - } + + case 0x1a: + switch (c->x86_model) { + case 0x00 ... 0x0f: + case 0x20 ... 0x2f: + case 0x40 ... 0x4f: + case 0x70 ... 0x7f: + setup_force_cpu_cap(X86_FEATURE_ZEN5); + break; + default: + goto warn; + } + break; + default: break; } @@ -1039,6 +1052,11 @@ static void init_amd_zen4(struct cpuinfo_x86 *c) msr_set_bit(MSR_ZEN4_BP_CFG, MSR_ZEN4_BP_CFG_SHARED_BTB_FIX_BIT); } +static void init_amd_zen5(struct cpuinfo_x86 *c) +{ + init_amd_zen_common(); +} + static void init_amd(struct cpuinfo_x86 *c) { u64 vm_cr; @@ -1084,6 +1102,8 @@ static void init_amd(struct cpuinfo_x86 *c) init_amd_zen3(c); else if (boot_cpu_has(X86_FEATURE_ZEN4)) init_amd_zen4(c); + else if (boot_cpu_has(X86_FEATURE_ZEN5)) + init_amd_zen5(c); /* * Enable workaround for FXSAVE leak on CPUs |