diff options
| -rw-r--r-- | arch/x86/cpu/ivybridge/model_206ax.c | 2 | ||||
| -rw-r--r-- | arch/x86/cpu/lapic.c | 38 | ||||
| -rw-r--r-- | arch/x86/include/asm/arch-ivybridge/bd82x6x.h | 14 | ||||
| -rw-r--r-- | arch/x86/include/asm/lapic.h | 131 | ||||
| -rw-r--r-- | arch/x86/include/asm/lapic_def.h | 101 |
5 files changed, 103 insertions, 183 deletions
diff --git a/arch/x86/cpu/ivybridge/model_206ax.c b/arch/x86/cpu/ivybridge/model_206ax.c index 8b08c40..fd7db97 100644 --- a/arch/x86/cpu/ivybridge/model_206ax.c +++ b/arch/x86/cpu/ivybridge/model_206ax.c @@ -13,12 +13,12 @@ #include <asm/acpi.h> #include <asm/cpu.h> #include <asm/lapic.h> -#include <asm/lapic_def.h> #include <asm/msr.h> #include <asm/mtrr.h> #include <asm/processor.h> #include <asm/speedstep.h> #include <asm/turbo.h> +#include <asm/arch/bd82x6x.h> #include <asm/arch/model_206ax.h> static void enable_vmx(void) diff --git a/arch/x86/cpu/lapic.c b/arch/x86/cpu/lapic.c index 4690603..6769ae5 100644 --- a/arch/x86/cpu/lapic.c +++ b/arch/x86/cpu/lapic.c @@ -8,50 +8,46 @@ */ #include <common.h> -#include <asm/msr.h> -#include <asm/io.h> #include <asm/lapic.h> #include <asm/post.h> void lapic_setup(void) { -#if NEED_LAPIC == 1 +#ifdef CONFIG_SMP /* Only Pentium Pro and later have those MSR stuff */ debug("Setting up local apic: "); /* Enable the local apic */ enable_lapic(); - /* - * Set Task Priority to 'accept all'. - */ + /* Set Task Priority to 'accept all' */ lapic_write_around(LAPIC_TASKPRI, lapic_read_around(LAPIC_TASKPRI) & ~LAPIC_TPRI_MASK); /* Put the local apic in virtual wire mode */ lapic_write_around(LAPIC_SPIV, (lapic_read_around(LAPIC_SPIV) & - ~(LAPIC_VECTOR_MASK)) | LAPIC_SPIV_ENABLE); + ~(LAPIC_VECTOR_MASK)) | LAPIC_SPIV_ENABLE); lapic_write_around(LAPIC_LVT0, (lapic_read_around(LAPIC_LVT0) & - ~(LAPIC_LVT_MASKED | LAPIC_LVT_LEVEL_TRIGGER | - LAPIC_LVT_REMOTE_IRR | LAPIC_INPUT_POLARITY | - LAPIC_SEND_PENDING | LAPIC_LVT_RESERVED_1 | - LAPIC_DELIVERY_MODE_MASK)) | - (LAPIC_LVT_REMOTE_IRR | LAPIC_SEND_PENDING | - LAPIC_DELIVERY_MODE_EXTINT)); + ~(LAPIC_LVT_MASKED | LAPIC_LVT_LEVEL_TRIGGER | + LAPIC_LVT_REMOTE_IRR | LAPIC_INPUT_POLARITY | + LAPIC_SEND_PENDING | LAPIC_LVT_RESERVED_1 | + LAPIC_DELIVERY_MODE_MASK)) | + (LAPIC_LVT_REMOTE_IRR | LAPIC_SEND_PENDING | + LAPIC_DELIVERY_MODE_EXTINT)); lapic_write_around(LAPIC_LVT1, (lapic_read_around(LAPIC_LVT1) & - ~(LAPIC_LVT_MASKED | LAPIC_LVT_LEVEL_TRIGGER | - LAPIC_LVT_REMOTE_IRR | LAPIC_INPUT_POLARITY | - LAPIC_SEND_PENDING | LAPIC_LVT_RESERVED_1 | - LAPIC_DELIVERY_MODE_MASK)) | - (LAPIC_LVT_REMOTE_IRR | LAPIC_SEND_PENDING | - LAPIC_DELIVERY_MODE_NMI)); + ~(LAPIC_LVT_MASKED | LAPIC_LVT_LEVEL_TRIGGER | + LAPIC_LVT_REMOTE_IRR | LAPIC_INPUT_POLARITY | + LAPIC_SEND_PENDING | LAPIC_LVT_RESERVED_1 | + LAPIC_DELIVERY_MODE_MASK)) | + (LAPIC_LVT_REMOTE_IRR | LAPIC_SEND_PENDING | + LAPIC_DELIVERY_MODE_NMI)); debug("apic_id: 0x%02lx, ", lapicid()); -#else /* !NEED_LLAPIC */ +#else /* !CONFIG_SMP */ /* Only Pentium Pro and later have those MSR stuff */ debug("Disabling local apic: "); disable_lapic(); -#endif /* !NEED_LAPIC */ +#endif /* CONFIG_SMP */ debug("done.\n"); post_code(POST_LAPIC); } diff --git a/arch/x86/include/asm/arch-ivybridge/bd82x6x.h b/arch/x86/include/asm/arch-ivybridge/bd82x6x.h index 5ae32f7..7786493 100644 --- a/arch/x86/include/asm/arch-ivybridge/bd82x6x.h +++ b/arch/x86/include/asm/arch-ivybridge/bd82x6x.h @@ -16,7 +16,19 @@ int gma_func0_init(pci_dev_t dev, struct pci_controller *hose, const void *blob, int node); int bd82x6x_init(void); -struct x86_cpu_priv; +/** + * struct x86_cpu_priv - Information about a single CPU + * + * @apic_id: Advanced Programmable Interrupt Controller Identifier, which is + * just a number representing the CPU core + * + * TODO: Move this to driver model once lifecycle is understood + */ +struct x86_cpu_priv { + int apic_id; + int start_err; +}; + int model_206ax_init(struct x86_cpu_priv *cpu); #endif diff --git a/arch/x86/include/asm/lapic.h b/arch/x86/include/asm/lapic.h index 0a7f443..f60974a 100644 --- a/arch/x86/include/asm/lapic.h +++ b/arch/x86/include/asm/lapic.h @@ -1,5 +1,5 @@ /* - * From Coreboot file of same name + * From coreboot file of same name * * Copyright (C) 2014 Google, Inc * @@ -10,16 +10,61 @@ #define _ARCH_ASM_LAPIC_H #include <asm/io.h> -#include <asm/lapic_def.h> #include <asm/msr.h> +#include <asm/msr-index.h> #include <asm/processor.h> -/* See if I need to initialize the local apic */ -#if CONFIG_SMP || CONFIG_IOAPIC -# define NEED_LAPIC 1 -#else -# define NEED_LAPIC 0 -#endif +#define LAPIC_DEFAULT_BASE 0xfee00000 + +#define LAPIC_ID 0x020 +#define LAPIC_LVR 0x030 + +#define LAPIC_TASKPRI 0x080 +#define LAPIC_TPRI_MASK 0xff + +#define LAPIC_RRR 0x0c0 + +#define LAPIC_SPIV 0x0f0 +#define LAPIC_SPIV_ENABLE 0x100 + +#define LAPIC_ICR 0x300 +#define LAPIC_DEST_SELF 0x40000 +#define LAPIC_DEST_ALLINC 0x80000 +#define LAPIC_DEST_ALLBUT 0xc0000 +#define LAPIC_ICR_RR_MASK 0x30000 +#define LAPIC_ICR_RR_INVALID 0x00000 +#define LAPIC_ICR_RR_INPROG 0x10000 +#define LAPIC_ICR_RR_VALID 0x20000 +#define LAPIC_INT_LEVELTRIG 0x08000 +#define LAPIC_INT_ASSERT 0x04000 +#define LAPIC_ICR_BUSY 0x01000 +#define LAPIC_DEST_LOGICAL 0x00800 +#define LAPIC_DM_FIXED 0x00000 +#define LAPIC_DM_LOWEST 0x00100 +#define LAPIC_DM_SMI 0x00200 +#define LAPIC_DM_REMRD 0x00300 +#define LAPIC_DM_NMI 0x00400 +#define LAPIC_DM_INIT 0x00500 +#define LAPIC_DM_STARTUP 0x00600 +#define LAPIC_DM_EXTINT 0x00700 +#define LAPIC_VECTOR_MASK 0x000ff + +#define LAPIC_ICR2 0x310 +#define GET_LAPIC_DEST_FIELD(x) (((x) >> 24) & 0xff) +#define SET_LAPIC_DEST_FIELD(x) ((x) << 24) + +#define LAPIC_LVT0 0x350 +#define LAPIC_LVT1 0x360 +#define LAPIC_LVT_MASKED (1 << 16) +#define LAPIC_LVT_LEVEL_TRIGGER (1 << 15) +#define LAPIC_LVT_REMOTE_IRR (1 << 14) +#define LAPIC_INPUT_POLARITY (1 << 13) +#define LAPIC_SEND_PENDING (1 << 12) +#define LAPIC_LVT_RESERVED_1 (1 << 11) +#define LAPIC_DELIVERY_MODE_MASK (7 << 8) +#define LAPIC_DELIVERY_MODE_FIXED (0 << 8) +#define LAPIC_DELIVERY_MODE_NMI (4 << 8) +#define LAPIC_DELIVERY_MODE_EXTINT (7 << 8) static inline __attribute__((always_inline)) unsigned long lapic_read(unsigned long reg) @@ -42,21 +87,21 @@ static inline void enable_lapic(void) { msr_t msr; - msr = msr_read(LAPIC_BASE_MSR); + msr = msr_read(MSR_IA32_APICBASE); msr.hi &= 0xffffff00; - msr.lo |= LAPIC_BASE_MSR_ENABLE; - msr.lo &= ~LAPIC_BASE_MSR_ADDR_MASK; + msr.lo |= MSR_IA32_APICBASE_ENABLE; + msr.lo &= ~MSR_IA32_APICBASE_BASE; msr.lo |= LAPIC_DEFAULT_BASE; - msr_write(LAPIC_BASE_MSR, msr); + msr_write(MSR_IA32_APICBASE, msr); } static inline void disable_lapic(void) { msr_t msr; - msr = msr_read(LAPIC_BASE_MSR); - msr.lo &= ~(1 << 11); - msr_write(LAPIC_BASE_MSR, msr); + msr = msr_read(MSR_IA32_APICBASE); + msr.lo &= ~MSR_IA32_APICBASE_ENABLE; + msr_write(MSR_IA32_APICBASE, msr); } static inline __attribute__((always_inline)) unsigned long lapicid(void) @@ -64,30 +109,24 @@ static inline __attribute__((always_inline)) unsigned long lapicid(void) return lapic_read(LAPIC_ID) >> 24; } -#if !CONFIG_AP_IN_SIPI_WAIT -/* If we need to go back to sipi wait, we use the long non-inlined version of - * this function in lapic_cpu_init.c - */ static inline __attribute__((always_inline)) void stop_this_cpu(void) { /* Called by an AP when it is ready to halt and wait for a new task */ for (;;) cpu_hlt(); } -#else -void stop_this_cpu(void); -#endif -#define xchg(ptr, v) ((__typeof__(*(ptr)))__xchg((unsigned long)(v), (ptr), \ - sizeof(*(ptr)))) +#define xchg(ptr, v) ((__typeof__(*(ptr)))__xchg((unsigned long)(v), (ptr), \ + sizeof(*(ptr)))) -struct __xchg_dummy { unsigned long a[100]; }; -#define __xg(x) ((struct __xchg_dummy *)(x)) +struct __xchg_dummy { unsigned long a[100]; }; +#define __xg(x) ((struct __xchg_dummy *)(x)) /* - * Note: no "lock" prefix even on SMP: xchg always implies lock anyway + * Note: no "lock" prefix even on SMP. xchg always implies lock anyway. + * * Note 2: xchg has side effect, so that attribute volatile is necessary, - * but generally the primitive is invalid, *ptr is output argument. --ANK + * but generally the primitive is invalid, *ptr is output argument. */ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size) @@ -121,25 +160,19 @@ static inline void lapic_write_atomic(unsigned long reg, unsigned long v) (void)xchg((volatile unsigned long *)(LAPIC_DEFAULT_BASE + reg), v); } - -#ifdef X86_GOOD_APIC -# define FORCE_READ_AROUND_WRITE 0 -# define lapic_read_around(x) lapic_read(x) -# define lapic_write_around(x, y) lapic_write((x), (y)) -#else -# define FORCE_READ_AROUND_WRITE 1 -# define lapic_read_around(x) lapic_read(x) -# define lapic_write_around(x, y) lapic_write_atomic((x), (y)) -#endif +#define lapic_read_around(x) lapic_read(x) +#define lapic_write_around(x, y) lapic_write_atomic((x), (y)) static inline int lapic_remote_read(int apicid, int reg, unsigned long *pvalue) { int timeout; unsigned long status; int result; + lapic_wait_icr_idle(); lapic_write_around(LAPIC_ICR2, SET_LAPIC_DEST_FIELD(apicid)); lapic_write_around(LAPIC_ICR, LAPIC_DM_REMRD | (reg >> 4)); + timeout = 0; do { status = lapic_read(LAPIC_ICR) & LAPIC_ICR_RR_MASK; @@ -150,30 +183,10 @@ static inline int lapic_remote_read(int apicid, int reg, unsigned long *pvalue) *pvalue = lapic_read(LAPIC_RRR); result = 0; } + return result; } - void lapic_setup(void); -#if CONFIG_SMP -struct device; -int start_cpu(struct device *cpu); -#endif /* CONFIG_SMP */ - -int boot_cpu(void); - -/** - * struct x86_cpu_priv - Information about a single CPU - * - * @apic_id: Advanced Programmable Interrupt Controller Identifier, which is - * just a number representing the CPU core - * - * TODO: Move this to driver model once lifecycle is understood - */ -struct x86_cpu_priv { - int apic_id; - int start_err; -}; - #endif diff --git a/arch/x86/include/asm/lapic_def.h b/arch/x86/include/asm/lapic_def.h deleted file mode 100644 index 722cead..0000000 --- a/arch/x86/include/asm/lapic_def.h +++ /dev/null @@ -1,101 +0,0 @@ -/* - * Taken from the Coreboot file of the same name - * - * (C) Copyright 2014 Google, Inc - * - * SPDX-License-Identifier: GPL-2.0 - */ - -#ifndef _ASM_LAPIC_DEF_H -#define _ASM_LAPIC_DEF_H - -#define LAPIC_BASE_MSR 0x1B -#define LAPIC_BASE_MSR_BOOTSTRAP_PROCESSOR (1 << 8) -#define LAPIC_BASE_MSR_ENABLE (1 << 11) -#define LAPIC_BASE_MSR_ADDR_MASK 0xFFFFF000 - -#define LOCAL_APIC_ADDR 0xfee00000 -#define LAPIC_DEFAULT_BASE LOCAL_APIC_ADDR - -#define LAPIC_ID 0x020 -#define LAPIC_LVR 0x030 -#define LAPIC_TASKPRI 0x80 -#define LAPIC_TPRI_MASK 0xFF -#define LAPIC_ARBID 0x090 -#define LAPIC_RRR 0x0C0 -#define LAPIC_SVR 0x0f0 -#define LAPIC_SPIV 0x0f0 -#define LAPIC_SPIV_ENABLE 0x100 -#define LAPIC_ESR 0x280 -#define LAPIC_ESR_SEND_CS 0x00001 -#define LAPIC_ESR_RECV_CS 0x00002 -#define LAPIC_ESR_SEND_ACC 0x00004 -#define LAPIC_ESR_RECV_ACC 0x00008 -#define LAPIC_ESR_SENDILL 0x00020 -#define LAPIC_ESR_RECVILL 0x00040 -#define LAPIC_ESR_ILLREGA 0x00080 -#define LAPIC_ICR 0x300 -#define LAPIC_DEST_SELF 0x40000 -#define LAPIC_DEST_ALLINC 0x80000 -#define LAPIC_DEST_ALLBUT 0xC0000 -#define LAPIC_ICR_RR_MASK 0x30000 -#define LAPIC_ICR_RR_INVALID 0x00000 -#define LAPIC_ICR_RR_INPROG 0x10000 -#define LAPIC_ICR_RR_VALID 0x20000 -#define LAPIC_INT_LEVELTRIG 0x08000 -#define LAPIC_INT_ASSERT 0x04000 -#define LAPIC_ICR_BUSY 0x01000 -#define LAPIC_DEST_LOGICAL 0x00800 -#define LAPIC_DM_FIXED 0x00000 -#define LAPIC_DM_LOWEST 0x00100 -#define LAPIC_DM_SMI 0x00200 -#define LAPIC_DM_REMRD 0x00300 -#define LAPIC_DM_NMI 0x00400 -#define LAPIC_DM_INIT 0x00500 -#define LAPIC_DM_STARTUP 0x00600 -#define LAPIC_DM_EXTINT 0x00700 -#define LAPIC_VECTOR_MASK 0x000FF -#define LAPIC_ICR2 0x310 -#define GET_LAPIC_DEST_FIELD(x) (((x) >> 24) & 0xFF) -#define SET_LAPIC_DEST_FIELD(x) ((x) << 24) -#define LAPIC_LVTT 0x320 -#define LAPIC_LVTPC 0x340 -#define LAPIC_LVT0 0x350 -#define LAPIC_LVT_TIMER_BASE_MASK (0x3 << 18) -#define GET_LAPIC_TIMER_BASE(x) (((x) >> 18) & 0x3) -#define SET_LAPIC_TIMER_BASE(x) (((x) << 18)) -#define LAPIC_TIMER_BASE_CLKIN 0x0 -#define LAPIC_TIMER_BASE_TMBASE 0x1 -#define LAPIC_TIMER_BASE_DIV 0x2 -#define LAPIC_LVT_TIMER_PERIODIC (1 << 17) -#define LAPIC_LVT_MASKED (1 << 16) -#define LAPIC_LVT_LEVEL_TRIGGER (1 << 15) -#define LAPIC_LVT_REMOTE_IRR (1 << 14) -#define LAPIC_INPUT_POLARITY (1 << 13) -#define LAPIC_SEND_PENDING (1 << 12) -#define LAPIC_LVT_RESERVED_1 (1 << 11) -#define LAPIC_DELIVERY_MODE_MASK (7 << 8) -#define LAPIC_DELIVERY_MODE_FIXED (0 << 8) -#define LAPIC_DELIVERY_MODE_NMI (4 << 8) -#define LAPIC_DELIVERY_MODE_EXTINT (7 << 8) -#define GET_LAPIC_DELIVERY_MODE(x) (((x) >> 8) & 0x7) -#define SET_LAPIC_DELIVERY_MODE(x, y) (((x) & ~0x700)|((y) << 8)) -#define LAPIC_MODE_FIXED 0x0 -#define LAPIC_MODE_NMI 0x4 -#define LAPIC_MODE_EXINT 0x7 -#define LAPIC_LVT1 0x360 -#define LAPIC_LVTERR 0x370 -#define LAPIC_TMICT 0x380 -#define LAPIC_TMCCT 0x390 -#define LAPIC_TDCR 0x3E0 -#define LAPIC_TDR_DIV_TMBASE (1 << 2) -#define LAPIC_TDR_DIV_1 0xB -#define LAPIC_TDR_DIV_2 0x0 -#define LAPIC_TDR_DIV_4 0x1 -#define LAPIC_TDR_DIV_8 0x2 -#define LAPIC_TDR_DIV_16 0x3 -#define LAPIC_TDR_DIV_32 0x8 -#define LAPIC_TDR_DIV_64 0x9 -#define LAPIC_TDR_DIV_128 0xA - -#endif |