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authorStefan Reinauer <stepan@coresystems.de>2009-01-19 21:20:22 +0000
committerStefan Reinauer <stepan@openbios.org>2009-01-19 21:20:22 +0000
commit269563a423f9291e84b5a93859a3e17767cf27a0 (patch)
treed7bfed265b6ade33667641589e85db06b5e337ee
parent0fd183ce72c44f42859924de5739c73c249e7df0 (diff)
downloadcoreboot-269563a423f9291e84b5a93859a3e17767cf27a0.tar.xz
First shot at factoring SMM code into generic parts and southbridge specific
parts. This should help to reduce the code duplication for Rudolf's K8/VIA SMM implementation... Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Joseph Smith <joe@settoplinux.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3870 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
-rw-r--r--src/cpu/amd/model_10xxx/Config.lb1
-rw-r--r--src/cpu/amd/model_fxx/Config.lb1
-rw-r--r--src/cpu/amd/model_gx1/Config.lb1
-rw-r--r--src/cpu/amd/model_gx2/Config.lb3
-rw-r--r--src/cpu/amd/model_lx/Config.lb3
-rw-r--r--src/cpu/intel/ep80579/Config.lb1
-rw-r--r--src/cpu/intel/model_69x/Config.lb1
-rw-r--r--src/cpu/intel/model_6dx/Config.lb1
-rw-r--r--src/cpu/intel/model_6ex/Config.lb1
-rw-r--r--src/cpu/intel/model_6fx/Config.lb1
-rw-r--r--src/cpu/intel/model_6xx/Config.lb1
-rw-r--r--src/cpu/intel/model_f0x/Config.lb1
-rw-r--r--src/cpu/intel/model_f1x/Config.lb1
-rw-r--r--src/cpu/intel/model_f2x/Config.lb1
-rw-r--r--src/cpu/intel/model_f3x/Config.lb1
-rw-r--r--src/cpu/intel/model_f4x/Config.lb1
-rw-r--r--src/cpu/via/model_c3/Config.lb1
-rw-r--r--src/cpu/via/model_c7/Config.lb1
-rw-r--r--src/cpu/x86/smm/Config.lb47
-rw-r--r--src/cpu/x86/smm/smihandler.c203
-rw-r--r--src/cpu/x86/smm/smm.ld (renamed from src/southbridge/intel/i82801gx/smm.ld)0
-rw-r--r--src/cpu/x86/smm/smmhandler.S (renamed from src/southbridge/intel/i82801gx/smmhandler.S)0
-rw-r--r--src/cpu/x86/smm/smmrelocate.S (renamed from src/southbridge/intel/i82801gx/smmrelocate.S)0
-rw-r--r--src/southbridge/intel/i82801gx/Config.lb35
-rw-r--r--src/southbridge/intel/i82801gx/i82801gx_lpc.c5
-rw-r--r--src/southbridge/intel/i82801gx/i82801gx_smihandler.c (renamed from src/southbridge/intel/i82801gx/smihandler.c)153
-rw-r--r--util/newconfig/config.g49
27 files changed, 336 insertions, 178 deletions
diff --git a/src/cpu/amd/model_10xxx/Config.lb b/src/cpu/amd/model_10xxx/Config.lb
index 94aa01afae..47303be0e8 100644
--- a/src/cpu/amd/model_10xxx/Config.lb
+++ b/src/cpu/amd/model_10xxx/Config.lb
@@ -31,6 +31,7 @@ dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
dir /cpu/x86/pae
+dir /cpu/x86/smm
dir /cpu/amd/mtrr
dir /cpu/amd/quadcore
dir /cpu/amd/microcode
diff --git a/src/cpu/amd/model_fxx/Config.lb b/src/cpu/amd/model_fxx/Config.lb
index 0adfa28d08..60463e3e62 100644
--- a/src/cpu/amd/model_fxx/Config.lb
+++ b/src/cpu/amd/model_fxx/Config.lb
@@ -12,6 +12,7 @@ dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
dir /cpu/x86/pae
+dir /cpu/x86/smm
dir /cpu/amd/mtrr
dir /cpu/amd/dualcore
dir /cpu/amd/microcode
diff --git a/src/cpu/amd/model_gx1/Config.lb b/src/cpu/amd/model_gx1/Config.lb
index bf76bd97f0..4a79a30529 100644
--- a/src/cpu/amd/model_gx1/Config.lb
+++ b/src/cpu/amd/model_gx1/Config.lb
@@ -3,4 +3,5 @@ dir /cpu/x86/fpu
dir /cpu/x86/mmx
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
driver model_gx1_init.o
diff --git a/src/cpu/amd/model_gx2/Config.lb b/src/cpu/amd/model_gx2/Config.lb
index e05141c5d9..8294c4521d 100644
--- a/src/cpu/amd/model_gx2/Config.lb
+++ b/src/cpu/amd/model_gx2/Config.lb
@@ -3,6 +3,7 @@ dir /cpu/x86/fpu
dir /cpu/x86/mmx
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
driver model_gx2_init.o
object cpubug.o
-object vsmsetup.o \ No newline at end of file
+object vsmsetup.o
diff --git a/src/cpu/amd/model_lx/Config.lb b/src/cpu/amd/model_lx/Config.lb
index 43c6254061..42e90e436d 100644
--- a/src/cpu/amd/model_lx/Config.lb
+++ b/src/cpu/amd/model_lx/Config.lb
@@ -3,6 +3,7 @@ dir /cpu/x86/fpu
dir /cpu/x86/mmx
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
driver model_lx_init.o
object cpubug.o
-object vsmsetup.o \ No newline at end of file
+object vsmsetup.o
diff --git a/src/cpu/intel/ep80579/Config.lb b/src/cpu/intel/ep80579/Config.lb
index 4bf4ee3921..626af76dc9 100644
--- a/src/cpu/intel/ep80579/Config.lb
+++ b/src/cpu/intel/ep80579/Config.lb
@@ -26,5 +26,6 @@ dir /cpu/x86/mmx
dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
dir /cpu/intel/microcode
driver ep80579_init.o
diff --git a/src/cpu/intel/model_69x/Config.lb b/src/cpu/intel/model_69x/Config.lb
index 03a4fd70fa..46909d27f7 100644
--- a/src/cpu/intel/model_69x/Config.lb
+++ b/src/cpu/intel/model_69x/Config.lb
@@ -5,5 +5,6 @@ dir /cpu/x86/mmx
dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
dir /cpu/intel/microcode
driver model_69x_init.o
diff --git a/src/cpu/intel/model_6dx/Config.lb b/src/cpu/intel/model_6dx/Config.lb
index 46656a005d..15746148e7 100644
--- a/src/cpu/intel/model_6dx/Config.lb
+++ b/src/cpu/intel/model_6dx/Config.lb
@@ -5,5 +5,6 @@ dir /cpu/x86/mmx
dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
dir /cpu/intel/microcode
driver model_6dx_init.o
diff --git a/src/cpu/intel/model_6ex/Config.lb b/src/cpu/intel/model_6ex/Config.lb
index f45d70f9ef..a9c4537372 100644
--- a/src/cpu/intel/model_6ex/Config.lb
+++ b/src/cpu/intel/model_6ex/Config.lb
@@ -8,6 +8,7 @@ dir /cpu/x86/mmx
dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
dir /cpu/intel/microcode
dir /cpu/intel/hyperthreading
driver model_6ex_init.o
diff --git a/src/cpu/intel/model_6fx/Config.lb b/src/cpu/intel/model_6fx/Config.lb
index 549022d993..74f8be6168 100644
--- a/src/cpu/intel/model_6fx/Config.lb
+++ b/src/cpu/intel/model_6fx/Config.lb
@@ -8,6 +8,7 @@ dir /cpu/x86/mmx
dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
dir /cpu/intel/microcode
dir /cpu/intel/hyperthreading
driver model_6fx_init.o
diff --git a/src/cpu/intel/model_6xx/Config.lb b/src/cpu/intel/model_6xx/Config.lb
index 5b1fde1ba5..de33edd64e 100644
--- a/src/cpu/intel/model_6xx/Config.lb
+++ b/src/cpu/intel/model_6xx/Config.lb
@@ -5,5 +5,6 @@ dir /cpu/x86/mmx
dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
dir /cpu/intel/microcode
driver model_6xx_init.o
diff --git a/src/cpu/intel/model_f0x/Config.lb b/src/cpu/intel/model_f0x/Config.lb
index 2458c81c14..6afad2ad40 100644
--- a/src/cpu/intel/model_f0x/Config.lb
+++ b/src/cpu/intel/model_f0x/Config.lb
@@ -7,5 +7,6 @@ dir /cpu/x86/mmx
dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
dir /cpu/intel/microcode
driver model_f0x_init.o
diff --git a/src/cpu/intel/model_f1x/Config.lb b/src/cpu/intel/model_f1x/Config.lb
index 5387d455f1..b6ae5085e1 100644
--- a/src/cpu/intel/model_f1x/Config.lb
+++ b/src/cpu/intel/model_f1x/Config.lb
@@ -7,5 +7,6 @@ dir /cpu/x86/mmx
dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
dir /cpu/intel/microcode
driver model_f1x_init.o
diff --git a/src/cpu/intel/model_f2x/Config.lb b/src/cpu/intel/model_f2x/Config.lb
index 3cf5062931..314205f716 100644
--- a/src/cpu/intel/model_f2x/Config.lb
+++ b/src/cpu/intel/model_f2x/Config.lb
@@ -7,6 +7,7 @@ dir /cpu/x86/mmx
dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
dir /cpu/intel/microcode
dir /cpu/intel/hyperthreading
driver model_f2x_init.o
diff --git a/src/cpu/intel/model_f3x/Config.lb b/src/cpu/intel/model_f3x/Config.lb
index 175ff58919..0f80cd853b 100644
--- a/src/cpu/intel/model_f3x/Config.lb
+++ b/src/cpu/intel/model_f3x/Config.lb
@@ -7,6 +7,7 @@ dir /cpu/x86/mmx
dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
dir /cpu/intel/microcode
dir /cpu/intel/hyperthreading
driver model_f3x_init.o
diff --git a/src/cpu/intel/model_f4x/Config.lb b/src/cpu/intel/model_f4x/Config.lb
index 66f6ceb00f..cef79889e5 100644
--- a/src/cpu/intel/model_f4x/Config.lb
+++ b/src/cpu/intel/model_f4x/Config.lb
@@ -7,6 +7,7 @@ dir /cpu/x86/mmx
dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
dir /cpu/intel/microcode
dir /cpu/intel/hyperthreading
driver model_f4x_init.o
diff --git a/src/cpu/via/model_c3/Config.lb b/src/cpu/via/model_c3/Config.lb
index 174d3ccc16..de7d9142af 100644
--- a/src/cpu/via/model_c3/Config.lb
+++ b/src/cpu/via/model_c3/Config.lb
@@ -26,5 +26,6 @@ dir /cpu/x86/mmx
dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
dir /cpu/intel/microcode
driver model_c3_init.o
diff --git a/src/cpu/via/model_c7/Config.lb b/src/cpu/via/model_c7/Config.lb
index 6bc6001908..d956832162 100644
--- a/src/cpu/via/model_c7/Config.lb
+++ b/src/cpu/via/model_c7/Config.lb
@@ -26,5 +26,6 @@ dir /cpu/x86/mmx
dir /cpu/x86/sse
dir /cpu/x86/lapic
dir /cpu/x86/cache
+dir /cpu/x86/smm
dir /cpu/intel/microcode
driver model_c7_init.o
diff --git a/src/cpu/x86/smm/Config.lb b/src/cpu/x86/smm/Config.lb
new file mode 100644
index 0000000000..8edbabdf3d
--- /dev/null
+++ b/src/cpu/x86/smm/Config.lb
@@ -0,0 +1,47 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2008 coresystems GmbH
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+##
+
+uses HAVE_SMI_HANDLER
+
+if HAVE_SMI_HANDLER
+ object smmrelocate.S
+
+ smmobject smmhandler.S
+ smmobject smihandler.o
+
+ makerule smm.o
+ depends "$(SMM-OBJECTS) printk.o vtxprintf.o $(LIBGCC_FILE_NAME)"
+ action "$(CC) $(DISTRO_LFLAGS) -nostdlib -r -o $@ $(SMM-OBJECTS) printk.o vtxprintf.o $(LIBGCC_FILE_NAME)"
+ end
+
+ makerule smm
+ depends "smm.o $(TOP)/src/cpu/x86/smm/smm.ld ldoptions"
+ action "$(CC) $(DISTRO_LFLAGS) -nostdlib -nostartfiles -static -o smm.elf -T $(TOP)/src/cpu/x86/smm/smm.ld smm.o"
+ action "$(CROSS_COMPILE)nm -n smm.elf | sort > smm.map"
+ action "$(OBJCOPY) -O binary smm.elf smm"
+ end
+
+ makerule smm_bin.c
+ depends "smm"
+ action "(echo 'unsigned char smm[] = {'; od -vtx1 smm | sed -e 's,^[0-9]* *,,' -e 's:[0-9a-f][0-9a-f] :0x&,:g' -e 's:[0-9a-f][0-9a-f]$$:0x&,:'; echo '}; unsigned int smm_len = '; wc -c smm |awk '{print $$1;}' ; echo ';') > smm_bin.c"
+ end
+
+ object ./smm_bin.o
+end
diff --git a/src/cpu/x86/smm/smihandler.c b/src/cpu/x86/smm/smihandler.c
new file mode 100644
index 0000000000..0dc8926653
--- /dev/null
+++ b/src/cpu/x86/smm/smihandler.c
@@ -0,0 +1,203 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <arch/io.h>
+#include <arch/romcc_io.h>
+#include <console/console.h>
+#include <cpu/x86/cache.h>
+#include <cpu/x86/smm.h>
+
+void southbridge_smi_set_eos(void);
+
+#define DEBUG_SMI
+
+typedef enum { SMI_LOCKED, SMI_UNLOCKED } smi_semaphore;
+
+/* SMI multiprocessing semaphore */
+static volatile smi_semaphore smi_handler_status = SMI_UNLOCKED;
+
+static int smi_obtain_lock(void)
+{
+ u8 ret = SMI_LOCKED;
+
+ asm volatile (
+ "movb %2, %%al\n"
+ "xchgb %%al, %1\n"
+ "movb %%al, %0\n"
+ : "=g" (ret), "=m" (smi_handler_status)
+ : "g" (SMI_LOCKED)
+ : "eax"
+ );
+
+ return (ret == SMI_UNLOCKED);
+}
+
+static void smi_release_lock(void)
+{
+ asm volatile (
+ "movb %1, %%al\n"
+ "xchgb %%al, %0\n"
+ : "=m" (smi_handler_status)
+ : "g" (SMI_UNLOCKED)
+ : "eax"
+ );
+}
+
+#define LAPIC_ID 0xfee00020
+static inline __attribute__((always_inline)) unsigned long nodeid(void)
+{
+ return (*((volatile unsigned long *)(LAPIC_ID)) >> 24);
+}
+
+/* ********************* smi_util ************************* */
+
+/* Data */
+#define UART_RBR 0x00
+#define UART_TBR 0x00
+
+/* Control */
+#define UART_IER 0x01
+#define UART_IIR 0x02
+#define UART_FCR 0x02
+#define UART_LCR 0x03
+#define UART_MCR 0x04
+#define UART_DLL 0x00
+#define UART_DLM 0x01
+
+/* Status */
+#define UART_LSR 0x05
+#define UART_MSR 0x06
+#define UART_SCR 0x07
+
+static int uart_can_tx_byte(void)
+{
+ return inb(TTYS0_BASE + UART_LSR) & 0x20;
+}
+
+static void uart_wait_to_tx_byte(void)
+{
+ while(!uart_can_tx_byte())
+ ;
+}
+
+static void uart_wait_until_sent(void)
+{
+ while(!(inb(TTYS0_BASE + UART_LSR) & 0x40))
+ ;
+}
+
+static void uart_tx_byte(unsigned char data)
+{
+ uart_wait_to_tx_byte();
+ outb(data, TTYS0_BASE + UART_TBR);
+ /* Make certain the data clears the fifos */
+ uart_wait_until_sent();
+}
+
+void console_tx_flush(void)
+{
+ uart_wait_to_tx_byte();
+}
+
+void console_tx_byte(unsigned char byte)
+{
+ if (byte == '\n')
+ uart_tx_byte('\r');
+ uart_tx_byte(byte);
+}
+
+/* ********************* smi_util ************************* */
+
+
+void io_trap_handler(int smif)
+{
+ southbridge_io_trap_handler(smif);
+}
+
+/**
+ * @brief Set the EOS bit
+ */
+static void smi_set_eos(void)
+{
+ southbridge_smi_set_eos();
+}
+
+/**
+ * @brief Interrupt handler for SMI#
+ *
+ * @param smm_revision revision of the smm state save map
+ */
+
+void smi_handler(u32 smm_revision)
+{
+ u8 reg8;
+ u16 pmctrl;
+ u16 pm1_sts;
+ u32 smi_sts, gpe0_sts, tco_sts;
+ unsigned int node;
+ smm_state_save_area_t state_save;
+
+ /* Are we ok to execute the handler? */
+ if (!smi_obtain_lock())
+ return;
+
+ node=nodeid();
+
+#ifdef DEBUG_SMI
+ console_loglevel = DEFAULT_CONSOLE_LOGLEVEL;
+#else
+ console_loglevel = 1;
+#endif
+
+ printk_debug("\nSMI# #%d\n", node);
+
+ switch (smm_revision) {
+ case 0x00030007:
+ state_save.type = LEGACY;
+ state_save.legacy_state_save = (legacy_smm_state_save_area_t *)
+ (0xa8000 + 0x7e00 - (node * 0x400));
+ break;
+ case 0x00030100:
+ state_save.type = EM64T;
+ state_save.em64t_state_save = (em64t_smm_state_save_area_t *)
+ (0xa8000 + 0x7d00 - (node * 0x400));
+ break;
+ case 0x00030064:
+ state_save.type = AMD64;
+ state_save.amd64_state_save = (amd64_smm_state_save_area_t *)
+ (0xa8000 + 0x7e00 - (node * 0x400));
+ break;
+ default:
+ printk_debug("smm_revision: 0x%08x\n", smm_revision);
+ printk_debug("SMI# not supported on your CPU\n");
+ /* Don't release lock, so no further SMI will happen,
+ * if we don't handle it anyways.
+ */
+ return;
+ }
+
+ southbridge_smi_handler(node, &state_save);
+
+ smi_release_lock();
+
+ /* De-assert SMI# signal to allow another SMI */
+ smi_set_eos();
+}
diff --git a/src/southbridge/intel/i82801gx/smm.ld b/src/cpu/x86/smm/smm.ld
index 1b25c2d2f8..1b25c2d2f8 100644
--- a/src/southbridge/intel/i82801gx/smm.ld
+++ b/src/cpu/x86/smm/smm.ld
diff --git a/src/southbridge/intel/i82801gx/smmhandler.S b/src/cpu/x86/smm/smmhandler.S
index f1bc550365..f1bc550365 100644
--- a/src/southbridge/intel/i82801gx/smmhandler.S
+++ b/src/cpu/x86/smm/smmhandler.S
diff --git a/src/southbridge/intel/i82801gx/smmrelocate.S b/src/cpu/x86/smm/smmrelocate.S
index 2a7bfc23c7..2a7bfc23c7 100644
--- a/src/southbridge/intel/i82801gx/smmrelocate.S
+++ b/src/cpu/x86/smm/smmrelocate.S
diff --git a/src/southbridge/intel/i82801gx/Config.lb b/src/southbridge/intel/i82801gx/Config.lb
index 3117ad2025..0ef93e89f1 100644
--- a/src/southbridge/intel/i82801gx/Config.lb
+++ b/src/southbridge/intel/i82801gx/Config.lb
@@ -18,6 +18,8 @@
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
+uses HAVE_SMI_HANDLER
+
config chip.h
driver i82801gx.o
driver i82801gx_ac97.o
@@ -33,34 +35,7 @@ driver i82801gx_usb_ehci.o
object i82801gx_reset.o
object i82801gx_watchdog.o
-object i82801gx_smi.o
-object smmrelocate.S
-
-makerule smmhandler.o
- depends "$(TOP)/src/southbridge/intel/i82801gx/smmhandler.S"
- action "@$(CC) -c $(CPU_OPT) $(CPPFLAGS) $(CFLAGS) -o $@ $<"
-end
-
-makerule smihandler.o
- depends "$(TOP)/src/southbridge/intel/i82801gx/smihandler.c"
- action "@$(CC) -c $(CPU_OPT) $(CPPFLAGS) $(CFLAGS) -o $@ $<"
-end
-
-makerule smm.o
- depends "smmhandler.o smihandler.o printk.o vtxprintf.o $(LIBGCC_FILE_NAME)"
- action "$(CC) $(DISTRO_LFLAGS) -nostdlib -r -o $@ smmhandler.o smihandler.o printk.o vtxprintf.o $(LIBGCC_FILE_NAME)"
+if HAVE_SMI_HANDLER
+ object i82801gx_smi.o
+ smmobject i82801gx_smihandler.o
end
-
-makerule smm
- depends "smm.o $(TOP)/src/southbridge/intel/i82801gx/smm.ld ldoptions"
- action "$(CC) $(DISTRO_LFLAGS) -nostdlib -nostartfiles -static -o smm.elf -T $(TOP)/src/southbridge/intel/i82801gx/smm.ld smm.o"
- action "$(CROSS_COMPILE)nm -n smm.elf | sort > smm.map"
- action "$(OBJCOPY) -O binary smm.elf smm"
-end
-
-makerule smm_bin.c
- depends "smm"
- action "(echo 'unsigned char smm[] = {'; od -vtx1 smm | sed -e 's,^[0-9]* *,,' -e 's:[0-9a-f][0-9a-f] :0x&,:g' -e 's:[0-9a-f][0-9a-f]$$:0x&,:'; echo '}; unsigned int smm_len = '; wc -c smm |awk '{print $$1;}' ; echo ';') > smm_bin.c"
-end
-
-object ./smm_bin.o
diff --git a/src/southbridge/intel/i82801gx/i82801gx_lpc.c b/src/southbridge/intel/i82801gx/i82801gx_lpc.c
index 13eb9e0ed1..cb1f42c51d 100644
--- a/src/southbridge/intel/i82801gx/i82801gx_lpc.c
+++ b/src/southbridge/intel/i82801gx/i82801gx_lpc.c
@@ -197,6 +197,8 @@ static void enable_hpet(struct device *dev)
/* TODO */
}
+
+#if HAVE_SMI_HANDLER
static void i82801gx_lock_smm(struct device *dev)
{
void smm_lock(void);
@@ -243,6 +245,7 @@ static void i82801gx_lock_smm(struct device *dev)
printk_debug("Done.\n");
#endif
}
+#endif
static void lpc_init(struct device *dev)
{
@@ -276,7 +279,9 @@ static void lpc_init(struct device *dev)
setup_i8259();
+#if HAVE_SMI_HANDLER
i82801gx_lock_smm(dev);
+#endif
}
static void i82801gx_lpc_read_resources(device_t dev)
diff --git a/src/southbridge/intel/i82801gx/smihandler.c b/src/southbridge/intel/i82801gx/i82801gx_smihandler.c
index 8e5569ad2f..e15dcad531 100644
--- a/src/southbridge/intel/i82801gx/smihandler.c
+++ b/src/southbridge/intel/i82801gx/i82801gx_smihandler.c
@@ -24,7 +24,7 @@
#include <console/console.h>
#include <cpu/x86/cache.h>
#include <cpu/x86/smm.h>
-#include "chip.h"
+//#include "chip.h"
// Future TODO: Move to i82801gx directory
#include "../../../northbridge/intel/i945/ich7.h"
@@ -34,6 +34,7 @@
#define ACPI_DISABLE 0x1e
#define ACPI_ENABLE 0xe1
+
/* I945 */
#define SMRAM 0x9d
#define D_OPEN (1 << 6)
@@ -84,45 +85,6 @@
*/
static u16 pmbase = DEFAULT_PMBASE;
-typedef enum { SMI_LOCKED, SMI_UNLOCKED } smi_semaphore;
-
-/* SMI multiprocessing semaphore */
-static volatile smi_semaphore smi_handler_status = SMI_UNLOCKED;
-
-static int smi_obtain_lock(void)
-{
- u8 ret = SMI_LOCKED;
-
- asm volatile (
- "movb %2, %%al\n"
- "xchgb %%al, %1\n"
- "movb %%al, %0\n"
- : "=g" (ret), "=m" (smi_handler_status)
- : "g" (SMI_LOCKED)
- : "eax"
- );
-
- return (ret == SMI_UNLOCKED);
-}
-
-static void smi_release_lock(void)
-{
- asm volatile (
- "movb %1, %%al\n"
- "xchgb %%al, %0\n"
- : "=m" (smi_handler_status)
- : "g" (SMI_UNLOCKED)
- : "eax"
- );
-}
-
-#define LAPIC_ID 0xfee00020
-static inline __attribute__((always_inline)) unsigned long nodeid(void)
-{
- return (*((volatile unsigned long *)(LAPIC_ID)) >> 24);
-}
-
-
/**
* @brief read and clear PM1_STS
* @return PM1_STS register
@@ -273,73 +235,13 @@ static void dump_tco_status(u32 tco_sts)
}
-/* ********************* smi_util ************************* */
-
-/* Data */
-#define UART_RBR 0x00
-#define UART_TBR 0x00
-
-/* Control */
-#define UART_IER 0x01
-#define UART_IIR 0x02
-#define UART_FCR 0x02
-#define UART_LCR 0x03
-#define UART_MCR 0x04
-#define UART_DLL 0x00
-#define UART_DLM 0x01
-
-/* Status */
-#define UART_LSR 0x05
-#define UART_MSR 0x06
-#define UART_SCR 0x07
-
-static int uart_can_tx_byte(void)
-{
- return inb(TTYS0_BASE + UART_LSR) & 0x20;
-}
-
-static void uart_wait_to_tx_byte(void)
-{
- while(!uart_can_tx_byte())
- ;
-}
-
-static void uart_wait_until_sent(void)
-{
- while(!(inb(TTYS0_BASE + UART_LSR) & 0x40))
- ;
-}
-
-static void uart_tx_byte(unsigned char data)
-{
- uart_wait_to_tx_byte();
- outb(data, TTYS0_BASE + UART_TBR);
- /* Make certain the data clears the fifos */
- uart_wait_until_sent();
-}
-
-void console_tx_flush(void)
-{
- uart_wait_to_tx_byte();
-}
-
-void console_tx_byte(unsigned char byte)
-{
- if (byte == '\n')
- uart_tx_byte('\r');
- uart_tx_byte(byte);
-}
-
/* We are using PCIe accesses for now
* 1. the chipset can do it
* 2. we don't need to worry about how we leave 0xcf8/0xcfc behind
*/
#include "../../../northbridge/intel/i945/pcie_config.c"
-/* ********************* smi_util ************************* */
-
-
-void io_trap_handler(int smif)
+void southbridge_io_trap_handler(int smif)
{
u8 reg8;
global_nvs_t *gnvs = (global_nvs_t *)0xc00;
@@ -374,10 +276,10 @@ void io_trap_handler(int smif)
/**
* @brief Set the EOS bit
*/
-static void smi_set_eos(void)
+void southbridge_smi_set_eos(void)
{
u8 reg8;
-
+
reg8 = inb(pmbase + SMI_EN);
reg8 |= EOS;
outb(reg8, pmbase + SMI_EN);
@@ -389,52 +291,16 @@ static void smi_set_eos(void)
* @param smm_revision revision of the smm state save map
*/
-void smi_handler(u32 smm_revision)
+void southbridge_smi_handler(unsigned int node, smm_state_save_area_t *state_save)
{
u8 reg8;
u16 pmctrl;
u16 pm1_sts;
u32 smi_sts, gpe0_sts, tco_sts;
- unsigned int node;
- smm_state_save_area_t state_save;
-
- /* Are we ok to execute the handler? */
- if (!smi_obtain_lock())
- return;
-
- node=nodeid();
-
-#ifdef DEBUG_SMI
- console_loglevel = DEFAULT_CONSOLE_LOGLEVEL;
-#else
- console_loglevel = 1;
-#endif
-
- printk_debug("\nSMI# #%d\n", node);
-
- switch (smm_revision) {
- case 0x00030007:
- state_save.type = LEGACY;
- state_save.legacy_state_save = (legacy_smm_state_save_area_t *)
- (0xa8000 + 0x7e00 - (node * 0x400));
- break;
- case 0x00030100:
- state_save.type = EM64T;
- state_save.em64t_state_save = (em64t_smm_state_save_area_t *)
- (0xa8000 + 0x7d00 - (node * 0x400));
- break;
- default:
- printk_debug("smm_revision: 0x%08x\n", smm_revision);
- printk_debug("SMI# not supported on your CPU\n");
- /* Don't release lock, so no further SMI will happen,
- * if we don't handle it anyways.
- */
- return;
- }
pmbase = pcie_read_config16(PCI_DEV(0, 0x1f, 0), 0x40) & 0xfffc;
printk_spew("SMI#: pmbase = 0x%04x\n", pmbase);
-
+
/* We need to clear the SMI status registers, or we won't see what's
* happening in the following calls.
*/
@@ -543,9 +409,4 @@ void smi_handler(u32 smm_revision)
printk_debug("....\n");
}
-
- smi_release_lock();
-
- /* De-assert SMI# signal to allow another SMI */
- smi_set_eos();
}
diff --git a/util/newconfig/config.g b/util/newconfig/config.g
index 93e36bbde2..294d407216 100644
--- a/util/newconfig/config.g
+++ b/util/newconfig/config.g
@@ -226,6 +226,9 @@ class romimage:
# driver files added by 'driver' directive
self.driverrules = {}
+ # smm object files added by 'smmobject' directive
+ self.smmobjectrules = {}
+
# loader scripts added by 'ldscript' directive
self.ldscripts = []
@@ -344,6 +347,9 @@ class romimage:
def adddriverrule(self, name):
self.addobjectdriver(self.driverrules, name)
+ def addsmmobjectrule(self, name):
+ self.addobjectdriver(self.smmobjectrules, name)
+
def getinitobjectrules(self):
return self.initobjectrules
@@ -371,6 +377,15 @@ class romimage:
return o
fatal("No such driver rule \"%s\"" % name)
+ def getsmmobjectrules(self):
+ return self.smmobjectrules
+
+ def getsmmobjectrule(self, name):
+ o = getdict(self.smmobjectrules, name)
+ if (o):
+ return o
+ fatal("No such smm object rule \"%s\"" % name)
+
def addldscript(self, path):
self.ldscripts.append(path)
@@ -1370,6 +1385,10 @@ def adddriver(driver_name):
global curimage
curimage.adddriverrule(driver_name)
+def addsmmobject(object_name):
+ global curimage
+ curimage.addsmmobjectrule(object_name)
+
def target(name):
global target_dir, target_name
print "Configuring TARGET %s" % name
@@ -1593,6 +1612,7 @@ parser Config:
token PRINT: 'print'
token REGISTER: 'register'
token ROMIMAGE: 'romimage'
+ token SMMOBJECT: 'smmobject'
token SOUTHBRIDGE: 'southbridge'
token SUPERIO: 'superio'
token TARGET: 'target'
@@ -1693,6 +1713,10 @@ parser Config:
rule driver<<C>>: DRIVER DIRPATH {{ if (C): adddriver(DIRPATH)}}
+ rule smmobject<<C>>:
+ SMMOBJECT DIRPATH {{ if (C): addsmmobject(DIRPATH)}}
+
+
rule dir<<C>>: DIR DIRPATH {{ if (C): dodir(DIRPATH, 'Config.lb') }}
rule default<<C>>: DEFAULT ID EQ value {{ if (C): setdefault(ID, value, 0) }}
@@ -1826,6 +1850,7 @@ parser Config:
| prtstmt<<C>> {{ return prtstmt }}
| register<<C>> {{ return register }}
| device<<C>> {{ return device }}
+ | smmobject<<C>> {{ return smmobject }}
# ENTRY for parsing Config.lb file
rule cfgfile: (uses<<1>>)*
@@ -2028,6 +2053,13 @@ def writeimagemakefile(image):
file.write("OBJECTS += %s\n" % (obj_name))
file.write("SOURCES += %s\n" % (obj_source))
+ for srule, smm in image.getsmmobjectrules().items():
+ s_name = smm[0]
+ s_source = smm[1]
+ file.write("SMM-OBJECTS += %s\n" % (s_name))
+ file.write("SOURCES += %s\n" % (s_source))
+
+
# for chip_target.c
file.write("OBJECTS += static.o\n")
file.write("SOURCES += static.c\n")
@@ -2104,6 +2136,23 @@ def writeimagemakefile(image):
file.write("\t$(CC) -c $(CFLAGS) -o $@ $<\n")
#file.write("%s\n" % objrule[2])
+ file.write("\n# smmobjectrules:\n")
+ for irule, smm in image.getsmmobjectrules().items():
+ source = topify(smm[1])
+ type = smm[2]
+ if (type == 'S'):
+ # for .S, .o depends on .s
+ file.write("%s: %s.s\n" % (smm[0], smm[3]))
+ file.write("\t$(CC) -c $(CPU_OPT) -o $@ $<\n")
+ # and .s depends on .S
+ file.write("%s.s: %s\n" % (smm[3], source))
+ # Note: next 2 lines are ONE output line!
+ file.write("\t$(CPP) $(CPPFLAGS) $< ")
+ file.write(">$@.new && mv $@.new $@\n")
+ else:
+ file.write("%s: %s\n" % (smm[0], source))
+ file.write("\t$(CC) -c $(CFLAGS) -o $@ $<\n")
+
# special rule for chip_target.c
file.write("static.o: static.c\n")
file.write("\t$(CC) -c $(CFLAGS) -o $@ $<\n")