diff options
Diffstat (limited to 'resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/kgpe-d16/0027-src-console-Add-x86-romstage-spinlock-option-and-pri.patch')
| -rw-r--r-- | resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/kgpe-d16/0027-src-console-Add-x86-romstage-spinlock-option-and-pri.patch | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/kgpe-d16/0027-src-console-Add-x86-romstage-spinlock-option-and-pri.patch b/resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/kgpe-d16/0027-src-console-Add-x86-romstage-spinlock-option-and-pri.patch deleted file mode 100644 index a2aa438..0000000 --- a/resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/kgpe-d16/0027-src-console-Add-x86-romstage-spinlock-option-and-pri.patch +++ /dev/null @@ -1,193 +0,0 @@ -From 27f6bb783ba638e6aa2539a6c51ec96386dbf28f Mon Sep 17 00:00:00 2001 -From: Timothy Pearson <tpearson@raptorengineeringinc.com> -Date: Mon, 18 May 2015 16:04:10 -0500 -Subject: [PATCH 027/143] src/console: Add x86 romstage spinlock option and - prink spinlock support - -Change-Id: Ice42a0d3177736bf6e1bc601092e413601866f20 -Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> ---- - src/Kconfig | 4 ++++ - src/arch/x86/include/arch/smp/spinlock.h | 11 ++++++++++- - src/console/printk.c | 19 +++++++++++++++++++ - src/cpu/amd/car/disable_cache_as_ram.c | 10 ++++++++++ - src/cpu/amd/car/post_cache_as_ram.c | 20 ++++++++++++++------ - 5 files changed, 57 insertions(+), 7 deletions(-) - -diff --git a/src/Kconfig b/src/Kconfig -index 368384d..5aa33d00 100644 ---- a/src/Kconfig -+++ b/src/Kconfig -@@ -446,6 +446,10 @@ config HAVE_HARD_RESET - This variable specifies whether a given board has a hard_reset - function, no matter if it's provided by board code or chipset code. - -+config HAVE_ROMSTAGE_CONSOLE_SPINLOCK -+ bool -+ default n -+ - config HAVE_MONOTONIC_TIMER - def_bool n - help -diff --git a/src/arch/x86/include/arch/smp/spinlock.h b/src/arch/x86/include/arch/smp/spinlock.h -index 32be2f2..3283540 100644 ---- a/src/arch/x86/include/arch/smp/spinlock.h -+++ b/src/arch/x86/include/arch/smp/spinlock.h -@@ -1,7 +1,7 @@ - #ifndef ARCH_SMP_SPINLOCK_H - #define ARCH_SMP_SPINLOCK_H - --#ifndef __PRE_RAM__ -+#if !defined(__PRE_RAM__) || defined(CONFIG_HAVE_ROMSTAGE_CONSOLE_SPINLOCK) - - /* - * Your basic SMP spinlocks, allowing only a single CPU anywhere -@@ -11,9 +11,18 @@ typedef struct { - volatile unsigned int lock; - } spinlock_t; - -+#ifdef __PRE_RAM__ -+spinlock_t *romstage_console_lock(void); -+void initialize_romstage_console_lock(void); -+#endif - - #define SPIN_LOCK_UNLOCKED (spinlock_t) { 1 } -+ -+#ifndef __PRE_RAM__ - #define DECLARE_SPIN_LOCK(x) static spinlock_t x = SPIN_LOCK_UNLOCKED; -+#else -+#define DECLARE_SPIN_LOCK(x) -+#endif - - /* - * Simple spin lock operations. There are two variants, one clears IRQ's -diff --git a/src/console/printk.c b/src/console/printk.c -index aab7ff5..5a23db0 100644 ---- a/src/console/printk.c -+++ b/src/console/printk.c -@@ -2,6 +2,7 @@ - * blatantly copied from linux/kernel/printk.c - * - * Copyright (C) 1991, 1992 Linus Torvalds -+ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering - * - */ - -@@ -13,7 +14,13 @@ - #include <stddef.h> - #include <trace.h> - -+#if IS_ENABLED(CONFIG_HAVE_ROMSTAGE_CONSOLE_SPINLOCK) -+#ifndef __PRE_RAM__ - DECLARE_SPIN_LOCK(console_lock) -+#endif -+#else -+DECLARE_SPIN_LOCK(console_lock) -+#endif - - void do_putchar(unsigned char byte) - { -@@ -39,7 +46,13 @@ int do_printk(int msg_level, const char *fmt, ...) - #endif - - DISABLE_TRACE; -+#ifdef __PRE_RAM__ -+#if IS_ENABLED(CONFIG_HAVE_ROMSTAGE_CONSOLE_SPINLOCK) -+ spin_lock(romstage_console_lock()); -+#endif -+#else - spin_lock(&console_lock); -+#endif - - va_start(args, fmt); - i = vtxprintf(wrap_putchar, fmt, args, NULL); -@@ -47,7 +60,13 @@ int do_printk(int msg_level, const char *fmt, ...) - - console_tx_flush(); - -+#ifdef __PRE_RAM__ -+#if IS_ENABLED(CONFIG_HAVE_ROMSTAGE_CONSOLE_SPINLOCK) -+ spin_unlock(romstage_console_lock()); -+#endif -+#else - spin_unlock(&console_lock); -+#endif - ENABLE_TRACE; - - return i; -diff --git a/src/cpu/amd/car/disable_cache_as_ram.c b/src/cpu/amd/car/disable_cache_as_ram.c -index 3b464b8..5eccf79 100644 ---- a/src/cpu/amd/car/disable_cache_as_ram.c -+++ b/src/cpu/amd/car/disable_cache_as_ram.c -@@ -24,6 +24,16 @@ - - #include <cpu/x86/cache.h> - -+static inline __attribute__((always_inline)) uint32_t amd_fam1x_cpu_family(void) -+{ -+ uint32_t family; -+ -+ family = cpuid_eax(0x80000001); -+ family = ((family & 0xf00000) >> 16) | ((family & 0xf00) >> 8); -+ -+ return family; -+} -+ - static inline __attribute__((always_inline)) void disable_cache_as_ram(void) - { - msr_t msr; -diff --git a/src/cpu/amd/car/post_cache_as_ram.c b/src/cpu/amd/car/post_cache_as_ram.c -index e265de1..257b41a 100644 ---- a/src/cpu/amd/car/post_cache_as_ram.c -+++ b/src/cpu/amd/car/post_cache_as_ram.c -@@ -84,6 +84,10 @@ static void prepare_ramstage_region(void *resume_backup_memory) - memset_((void*)0, 0, CONFIG_RAMTOP - backup_top); - } - -+#if IS_ENABLED(CONFIG_HAVE_ROMSTAGE_CONSOLE_SPINLOCK) -+ initialize_romstage_console_lock(); -+#endif -+ - print_car_debug("Done\n"); - } - -@@ -92,18 +96,19 @@ static void prepare_ramstage_region(void *resume_backup_memory) - static void vErrata343(void) - { - #ifdef BU_CFG2_MSR -- msr_t msr; -- unsigned int uiMask = 0xFFFFFFF7; -+ msr_t msr; -+ unsigned int uiMask = 0xFFFFFFF7; - -- msr = rdmsr(BU_CFG2_MSR); -- msr.hi &= uiMask; // set bit 35 to 0 -- wrmsr(BU_CFG2_MSR, msr); -+ msr = rdmsr(BU_CFG2_MSR); -+ msr.hi &= uiMask; // IcDisSpecTlbWr (bit 35) = 0 -+ wrmsr(BU_CFG2_MSR, msr); - #endif - } - - void post_cache_as_ram(void) - { - void *resume_backup_memory = NULL; -+ uint32_t family = amd_fam1x_cpu_family(); - - struct romstage_handoff *handoff; - handoff = romstage_handoff_find_or_add(); -@@ -120,7 +125,10 @@ void post_cache_as_ram(void) - prepare_romstage_ramstack(resume_backup_memory); - - /* from here don't store more data in CAR */ -- vErrata343(); -+ if (family < 0x6f) { -+ /* Family 10h or earlier */ -+ vErrata343(); -+ } - - size_t car_size = car_data_size(); - void *migrated_car = (void *)(CONFIG_RAMTOP - car_size); --- -1.7.9.5 - |