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arch/x86/acpigen: Add helpers for Store() and If (Lequal (...)) 

This change adds the following acpigen helpers:
a. acpigen_write_store_op_to_namestr: This generates ACPI code for
storing an ACPI OP to name string

b. acpigen_write_if_lequal_namestr_int: This generates ACPI code for
checking if operand1 and operand2 are equal where operand1 is
namestring and operand2 is an integer.

Change-Id: I84c158361c0725c2927f06be35391e61f627a453
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40783
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Furquan Shaikh 2020-04-27 23:06:30 -07:00
parent f510c75d64
commit 2c213d35b0
2 changed files with 24 additions and 0 deletions
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22
src/arch/x86/acpigen.c
View File

@ -1186,6 +1186,14 @@ void acpigen_write_store_ops(uint8_t src, uint8_t dst)
acpigen_emit_byte(dst);
}
/* Store (src, "namestr") */
void acpigen_write_store_op_to_namestr(uint8_t src, const char *dst)
{
acpigen_write_store();
acpigen_emit_byte(src);
acpigen_emit_namestring(dst);
}
/* Or (arg1, arg2, res) */
void acpigen_write_or(uint8_t arg1, uint8_t arg2, uint8_t res)
{
@ -1274,6 +1282,20 @@ void acpigen_write_if_lequal_op_int(uint8_t op, uint64_t val)
acpigen_write_integer(val);
}
/*
* Generates ACPI code for checking if operand1 and operand2 are equal, where,
* operand1 is namestring and operand2 is an integer.
*
* If (Lequal ("namestr", val))
*/
void acpigen_write_if_lequal_namestr_int(const char *namestr, uint64_t val)
{
acpigen_write_if();
acpigen_emit_byte(LEQUAL_OP);
acpigen_emit_namestring(namestr);
acpigen_write_integer(val);
}
void acpigen_write_else(void)
{
acpigen_emit_byte(ELSE_OP);

2
src/arch/x86/include/arch/acpigen.h
View File

@ -351,6 +351,7 @@ void acpigen_write_power_res(const char *name, uint8_t level, uint16_t order,
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_store_op_to_namestr(uint8_t src, const char *dst);
void acpigen_write_or(uint8_t arg1, uint8_t arg2, uint8_t res);
void acpigen_write_xor(uint8_t arg1, uint8_t arg2, uint8_t res);
void acpigen_write_and(uint8_t arg1, uint8_t arg2, uint8_t res);
@ -361,6 +362,7 @@ 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_if_lequal_op_int(uint8_t op, uint64_t val);
void acpigen_write_if_lequal_namestr_int(const char *namestr, uint64_t val);
void acpigen_write_else(void);
void acpigen_write_to_buffer(uint8_t src, uint8_t dst);
void acpigen_write_to_integer(uint8_t src, uint8_t dst);