diff options
Diffstat (limited to 'resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0002-src-console-Add-x86-romstage-spinlock-option-and-pri.patch')
| -rw-r--r-- | resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0002-src-console-Add-x86-romstage-spinlock-option-and-pri.patch | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0002-src-console-Add-x86-romstage-spinlock-option-and-pri.patch b/resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0002-src-console-Add-x86-romstage-spinlock-option-and-pri.patch deleted file mode 100644 index 31e47fd..0000000 --- a/resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0002-src-console-Add-x86-romstage-spinlock-option-and-pri.patch +++ /dev/null @@ -1,132 +0,0 @@ -From 964824b31218e5e63c2b52a11491e1b44692eb83 Mon Sep 17 00:00:00 2001 -From: Timothy Pearson <tpearson@raptorengineeringinc.com> -Date: Mon, 18 May 2015 16:04:10 -0500 -Subject: [PATCH 02/45] src/console: Add x86 romstage spinlock option and - printk spinlock support - -This paves the way for AP printk spinlock on AMD platforms - -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 | 15 +++++++++++++++ - src/cpu/amd/car/post_cache_as_ram.c | 4 ++++ - 4 files changed, 33 insertions(+), 1 deletion(-) - -diff --git a/src/Kconfig b/src/Kconfig -index 8439a00..b8da62a 100644 ---- a/src/Kconfig -+++ b/src/Kconfig -@@ -468,6 +468,10 @@ 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..74e532c 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__) || IS_ENABLED(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..99f90a8 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 +14,9 @@ - #include <stddef.h> - #include <trace.h> - -+#if (!defined(__PRE_RAM__) && IS_ENABLED(CONFIG_HAVE_ROMSTAGE_CONSOLE_SPINLOCK)) || !IS_ENABLED(CONFIG_HAVE_ROMSTAGE_CONSOLE_SPINLOCK) - DECLARE_SPIN_LOCK(console_lock) -+#endif - - void do_putchar(unsigned char byte) - { -@@ -39,7 +42,13 @@ 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 +56,13 @@ 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/post_cache_as_ram.c b/src/cpu/amd/car/post_cache_as_ram.c -index fb09cd4..8c5757e 100644 ---- a/src/cpu/amd/car/post_cache_as_ram.c -+++ b/src/cpu/amd/car/post_cache_as_ram.c -@@ -76,6 +76,10 @@ 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"); - } - --- -2.1.4 - |