Furquan Shaikh (furquan@google.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/17079
-gerrit
commit 9d6a9f2b8fcf20a689fafd6fc8bd267b3218546b Author: Furquan Shaikh furquan@chromium.org Date: Thu Oct 20 23:12:38 2016 -0700
arch/x86/acpigen: Add new functions to acpigen library
Add functions to support generation of following AML operations: 1. PowerResource 2. Store 3. Or 4. And 5. Not 6. Debug 7. If 8. Else 9. Serialized method
BUG=chrome-os-partner:55988
Change-Id: I606736b38e6a55ffdc3e814b6ae0fa367ef7595b Signed-off-by: Furquan Shaikh furquan@chromium.org --- src/arch/x86/acpigen.c | 132 +++++++++++++++++++++++++++++++++++- src/arch/x86/include/arch/acpigen.h | 15 ++++ 2 files changed, 145 insertions(+), 2 deletions(-)
diff --git a/src/arch/x86/acpigen.c b/src/arch/x86/acpigen.c index 27fa07a..e0e957a 100644 --- a/src/arch/x86/acpigen.c +++ b/src/arch/x86/acpigen.c @@ -438,12 +438,24 @@ void acpigen_write_empty_PTC(void) acpigen_pop_len(); }
-void acpigen_write_method(const char *name, int nargs) +static void __acpigen_write_method(const char *name, uint8_t flags) { acpigen_emit_byte(METHOD_OP); acpigen_write_len_f(); acpigen_emit_namestring(name); - acpigen_emit_byte(nargs & 7); + acpigen_emit_byte(flags); +} + +/* Method (name, nargs, NotSerialized) */ +void acpigen_write_method(const char *name, int nargs) +{ + __acpigen_write_method(name, (nargs & 7)); +} + +/* Method (name, nargs, Serialized) */ +void acpigen_write_method_serialized(const char *name, int nargs) +{ + __acpigen_write_method(name, (nargs & 7) | (1 << 3)); }
void acpigen_write_device(const char *name) @@ -864,3 +876,119 @@ void acpigen_write_uuid(const char *uuid)
acpigen_pop_len(); } + +/* + * Name (_PRx, Package(One) { name }) + * ... + * PowerResource (name, level, order) + */ +void acpigen_write_power_res(const char *name, uint8_t level, uint16_t order, + const char *dev_states[], size_t dev_states_count) +{ + int i; + for (i = 0; i < dev_states_count; i++) { + acpigen_write_name(dev_states[i]); + acpigen_write_package(1); + acpigen_emit_simple_namestring(name); + acpigen_pop_len(); /* Package */ + } + + acpigen_emit_ext_op(POWER_RES_OP); + + acpigen_write_len_f(); + + acpigen_emit_simple_namestring(name); + acpigen_emit_byte(level); + acpigen_emit_word(order); +} + +/* Sleep (ms) */ +void acpigen_write_sleep(uint64_t sleep_ms) +{ + acpigen_emit_ext_op(SLEEP_OP); + acpigen_write_integer(sleep_ms); +} + +void acpigen_write_store(void) +{ + acpigen_emit_byte(STORE_OP); +} + +/* Store (src, dst) */ +void acpigen_write_store_ops(uint8_t src, uint8_t dst) +{ + acpigen_write_store(); + acpigen_emit_byte(src); + acpigen_emit_byte(dst); +} + +/* Or (arg1, arg2, res) */ +void acpigen_write_or(uint8_t arg1, uint8_t arg2, uint8_t res) +{ + acpigen_emit_byte(OR_OP); + acpigen_emit_byte(arg1); + acpigen_emit_byte(arg2); + acpigen_emit_byte(res); +} + +/* And (arg1, arg2, res) */ +void acpigen_write_and(uint8_t arg1, uint8_t arg2, uint8_t res) +{ + acpigen_emit_byte(AND_OP); + acpigen_emit_byte(arg1); + acpigen_emit_byte(arg2); + acpigen_emit_byte(res); +} + +/* Not (arg, res) */ +void acpigen_write_not(uint8_t arg, uint8_t res) +{ + acpigen_emit_byte(NOT_OP); + acpigen_emit_byte(arg); + acpigen_emit_byte(res); +} + +/* Store (str, DEBUG) */ +void acpigen_write_debug_string(const char *str) +{ + acpigen_write_store(); + acpigen_write_string(str); + acpigen_emit_ext_op(DEBUG_OP); +} + +/* Store (val, DEBUG) */ +void acpigen_write_debug_integer(uint64_t val) +{ + acpigen_write_store(); + acpigen_write_integer(val); + acpigen_emit_ext_op(DEBUG_OP); +} + +/* Store (op, DEBUG) */ +void acpigen_write_debug_op(uint8_t op) +{ + acpigen_write_store(); + acpigen_emit_byte(op); + acpigen_emit_ext_op(DEBUG_OP); +} + +void acpigen_write_if(void) +{ + acpigen_emit_byte(IF_OP); + acpigen_write_len_f(); +} + +/* If (And (arg1, arg2)) */ +void acpigen_write_if_and(uint8_t arg1, uint8_t arg2) +{ + acpigen_write_if(); + acpigen_emit_byte(AND_OP); + acpigen_emit_byte(arg1); + acpigen_emit_byte(arg2); +} + +void acpigen_write_else(void) +{ + acpigen_emit_byte(ELSE_OP); + acpigen_write_len_f(); +} diff --git a/src/arch/x86/include/arch/acpigen.h b/src/arch/x86/include/arch/acpigen.h index 4e8456d..c2936e2 100644 --- a/src/arch/x86/include/arch/acpigen.h +++ b/src/arch/x86/include/arch/acpigen.h @@ -114,6 +114,7 @@ void acpigen_write_name_integer(const char *name, uint64_t val); void acpigen_write_coreboot_hid(enum coreboot_acpi_ids id); void acpigen_write_scope(const char *name); void acpigen_write_method(const char *name, int nargs); +void acpigen_write_method_serialized(const char *name, int nargs); void acpigen_write_device(const char *name); void acpigen_write_PPC(u8 nr); void acpigen_write_PPC_NVS(void); @@ -142,6 +143,20 @@ void acpigen_write_mainboard_resource_template(void); void acpigen_write_mainboard_resources(const char *scope, const char *name); void acpigen_write_irq(u16 mask); void acpigen_write_uuid(const char *uuid); +void acpigen_write_power_res(const char *name, uint8_t level, uint16_t order, + const char *dev_states[], size_t dev_states_count); +void acpigen_write_sleep(uint64_t sleep_ms); +void acpigen_write_store(void); +void acpigen_write_store_ops(uint8_t src, uint8_t dst); +void acpigen_write_or(uint8_t arg1, uint8_t arg2, uint8_t res); +void acpigen_write_and(uint8_t arg1, uint8_t arg2, uint8_t res); +void acpigen_write_not(uint8_t arg, uint8_t res); +void acpigen_write_debug_string(const char *str); +void acpigen_write_debug_integer(uint64_t val); +void acpigen_write_debug_op(uint8_t op); +void acpigen_write_if(void); +void acpigen_write_if_and(uint8_t arg1, uint8_t arg2); +void acpigen_write_else(void);
int get_cst_entries(acpi_cstate_t **);