diff options
Diffstat (limited to 'src/vendorcode/google/chromeos')
| -rw-r--r-- | src/vendorcode/google/chromeos/Kconfig | 7 | ||||
| -rw-r--r-- | src/vendorcode/google/chromeos/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/vendorcode/google/chromeos/acpi/chromeos.asl | 2 | ||||
| -rw-r--r-- | src/vendorcode/google/chromeos/acpi/gnvs.asl | 4 | ||||
| -rw-r--r-- | src/vendorcode/google/chromeos/acpi/ramoops.asl | 43 | ||||
| -rw-r--r-- | src/vendorcode/google/chromeos/chromeos.h | 15 | ||||
| -rw-r--r-- | src/vendorcode/google/chromeos/gnvs.c | 2 | ||||
| -rw-r--r-- | src/vendorcode/google/chromeos/gnvs.h | 4 | ||||
| -rw-r--r-- | src/vendorcode/google/chromeos/ramoops.c | 99 |
9 files changed, 174 insertions, 3 deletions
diff --git a/src/vendorcode/google/chromeos/Kconfig b/src/vendorcode/google/chromeos/Kconfig index 2f17b7eaba..ed358f820e 100644 --- a/src/vendorcode/google/chromeos/Kconfig +++ b/src/vendorcode/google/chromeos/Kconfig @@ -53,10 +53,15 @@ config CHROMEOS_RAMOOPS bool "Reserve space for Chrome OS ramoops" default y +config CHROMEOS_RAMOOPS_DYNAMIC + bool "Allocate RAM oops buffer in cbmem" + default n + depends on CHROMEOS_RAMOOPS + config CHROMEOS_RAMOOPS_RAM_START hex "Physical address of preserved RAM" default 0x00f00000 - depends on CHROMEOS_RAMOOPS + depends on CHROMEOS_RAMOOPS && !CHROMEOS_RAMOOPS_DYNAMIC config CHROMEOS_RAMOOPS_RAM_SIZE hex "Size of preserved RAM" diff --git a/src/vendorcode/google/chromeos/Makefile.inc b/src/vendorcode/google/chromeos/Makefile.inc index 4fa22ea931..007bd575e7 100644 --- a/src/vendorcode/google/chromeos/Makefile.inc +++ b/src/vendorcode/google/chromeos/Makefile.inc @@ -25,6 +25,7 @@ romstage-$(CONFIG_ARCH_X86) += vboot.c ramstage-y += gnvs.c romstage-y += fmap.c ramstage-y += fmap.c +ramstage-$(CONFIG_CHROMEOS_RAMOOPS) += ramoops.c smm-y += fmap.c ifneq ($(wildcard src/mainboard/$(MAINBOARDDIR)/chromeos.c),) ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/chromeos.c diff --git a/src/vendorcode/google/chromeos/acpi/chromeos.asl b/src/vendorcode/google/chromeos/acpi/chromeos.asl index 278296c939..8f63f122d5 100644 --- a/src/vendorcode/google/chromeos/acpi/chromeos.asl +++ b/src/vendorcode/google/chromeos/acpi/chromeos.asl @@ -107,3 +107,5 @@ Device (CRHW) Return (TSLM) } } + +#include "ramoops.asl" diff --git a/src/vendorcode/google/chromeos/acpi/gnvs.asl b/src/vendorcode/google/chromeos/acpi/gnvs.asl index dc4a0bfbe8..5377a8540f 100644 --- a/src/vendorcode/google/chromeos/acpi/gnvs.asl +++ b/src/vendorcode/google/chromeos/acpi/gnvs.asl @@ -34,4 +34,6 @@ VBT9, 32, // 0x196 - FMAP base address CHVD, 24576, // 0x19a - VDAT space filled by verified boot VBTA, 32, // 0xd9a - pointer to smbios FWID MEHH, 256, // 0xd9e - Management Engine Hash - // 0xdbe +RMOB, 32, // 0xdbe - RAM oops base address +RMOL, 32, // 0xdc2 - RAM oops length + // 0xdc6 diff --git a/src/vendorcode/google/chromeos/acpi/ramoops.asl b/src/vendorcode/google/chromeos/acpi/ramoops.asl new file mode 100644 index 0000000000..e43548933f --- /dev/null +++ b/src/vendorcode/google/chromeos/acpi/ramoops.asl @@ -0,0 +1,43 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014 Google Inc. + * + * 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 + */ + +Scope (\_SB) +{ + Device(RMOP) + { + Name (_HID, "GOOG9999") + Name (_CID, "GOOG9999") + Name (_UID, 1) + + Name (RBUF, ResourceTemplate() + { + Memory32Fixed (ReadWrite, 0, 0, MRES) + }) + + Method (_CRS) + { + CreateDwordField (^RBUF, ^MRES._BAS, RBAS) + CreateDwordField (^RBUF, ^MRES._LEN, RLEN) + Store (\RMOB, RBAS) + Store (\RMOL, RLEN) + Return (^RBUF) + } + } +} diff --git a/src/vendorcode/google/chromeos/chromeos.h b/src/vendorcode/google/chromeos/chromeos.h index 7fe8f06c08..2a781effab 100644 --- a/src/vendorcode/google/chromeos/chromeos.h +++ b/src/vendorcode/google/chromeos/chromeos.h @@ -51,4 +51,19 @@ void init_chromeos(int bootmode); int vboot_get_handoff_info(void **addr, uint32_t *size); #endif +#if CONFIG_CHROMEOS_RAMOOPS +#include "gnvs.h" +struct device; + +void chromeos_ram_oops_init(chromeos_acpi_t *chromeos); +#if CONFIG_CHROMEOS_RAMOOPS_DYNAMIC +static inline void chromeos_reserve_ram_oops(struct device *dev, int idx) {} +#else /* CONFIG_CHROMEOS_RAMOOPS_DYNAMIC */ +void chromeos_reserve_ram_oops(struct device *dev, int idx); +#endif /* CONFIG_CHROMEOS_RAMOOPS_DYNAMIC */ +#else /* !CONFIG_CHROMEOS_RAMOOPS */ +static inline void chromeos_ram_oops_init(chromeos_acpi_t *chromeos) {} +static inline void chromeos_reserve_ram_oops(struct device *dev, int idx) {} +#endif /* CONFIG_CHROMEOS_RAMOOPS */ + #endif diff --git a/src/vendorcode/google/chromeos/gnvs.c b/src/vendorcode/google/chromeos/gnvs.c index 9f510973e8..528143c67c 100644 --- a/src/vendorcode/google/chromeos/gnvs.c +++ b/src/vendorcode/google/chromeos/gnvs.c @@ -72,6 +72,8 @@ void chromeos_init_vboot(chromeos_acpi_t *chromeos) reason ? reason : ELOG_CROS_RECOVERY_MODE_BUTTON); } #endif + + chromeos_ram_oops_init(chromeos); } void chromeos_set_me_hash(u32 *hash, int len) diff --git a/src/vendorcode/google/chromeos/gnvs.h b/src/vendorcode/google/chromeos/gnvs.h index 00fe443eb2..fe7d77abfc 100644 --- a/src/vendorcode/google/chromeos/gnvs.h +++ b/src/vendorcode/google/chromeos/gnvs.h @@ -58,7 +58,9 @@ typedef struct { u8 vdat[3072]; // 19a u32 vbt10; // d9a smbios bios version u32 mehh[8]; // d9e management engine hash - // dbe + u32 ramoops_base; // dbe ramoops base address + u32 ramoops_len; // dc2 ramoops length + u8 pad[314]; // dc6-eff } __attribute__((packed)) chromeos_acpi_t; extern chromeos_acpi_t *vboot_data; diff --git a/src/vendorcode/google/chromeos/ramoops.c b/src/vendorcode/google/chromeos/ramoops.c new file mode 100644 index 0000000000..500bc907bc --- /dev/null +++ b/src/vendorcode/google/chromeos/ramoops.c @@ -0,0 +1,99 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014 Google Inc + * + * 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 <stddef.h> +#include <stdint.h> +#include <bootstate.h> +#include <console/console.h> +#include <cbmem.h> +#include <device/device.h> +#include "chromeos.h" + +static void set_ramoops(chromeos_acpi_t *chromeos, void *ram_oops, size_t size) +{ + if (chromeos == NULL) { + printk(BIOS_DEBUG, "chromeos gnvs is NULL. ramoops not set.\n"); + return; + } + + printk(BIOS_DEBUG, "Ramoops buffer: 0x%zx@0x%p.\n", size, ram_oops); + chromeos->ramoops_base = (uintptr_t)ram_oops; + chromeos->ramoops_len = size; +} + +static void reserve_ram_oops_dynamic(chromeos_acpi_t *chromeos) +{ + const size_t size = CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE; + void *ram_oops; + + if (!IS_ENABLED(CONFIG_CHROMEOS_RAMOOPS_DYNAMIC)) + return; + + ram_oops = cbmem_add(CBMEM_ID_RAM_OOPS, size); + + set_ramoops(chromeos, ram_oops, size); +} + +#if CONFIG_CHROMEOS_RAMOOPS_DYNAMIC +static inline void set_global_chromeos_pointer(chromeos_acpi_t *chromeos) {} +#else /* !CONFIG_CHROMEOS_RAMOOPS_DYNAMIC */ + +static const unsigned long ramoops_base = CONFIG_CHROMEOS_RAMOOPS_RAM_START; +static const unsigned long ramoops_size = CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE; + +/* + * Save pointer to chromeos structure in memory. This is needed because the + * memory reservation is not done when chromeos_init() is called. However, + * the pointer to the chromeos_acpi_t structure is needed to update the + * fields with the rserved base and size. + */ +static chromeos_acpi_t *g_chromeos; + +static void set_global_chromeos_pointer(chromeos_acpi_t *chromeos) +{ + g_chromeos = chromeos; +} + +static void update_gnvs(void *arg) +{ + chromeos_acpi_t **chromeos = arg; + + set_ramoops(*chromeos, (void *)ramoops_base, ramoops_size); +} + +static BOOT_STATE_CALLBACK(bscb_ramoops, update_gnvs, &g_chromeos); + +void chromeos_reserve_ram_oops(struct device *dev, int idx) +{ + const unsigned long base = ramoops_base >> 10; + const unsigned long size = ramoops_size >> 10; + + reserved_ram_resource(dev, idx, base, size); + + boot_state_sched_on_exit(&bscb_ramoops, BS_WRITE_TABLES); +} +#endif /* CONFIG_CHROMEOS_RAMOOPS_DYNAMIC */ + +void chromeos_ram_oops_init(chromeos_acpi_t *chromeos) +{ + set_global_chromeos_pointer(chromeos); + reserve_ram_oops_dynamic(chromeos); +} + |