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soc/amd/common/psp/psp_def.h: increase P2C_BUFFER_MAXSIZE

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This matches the size used in the reference code and required by the
corresponding document #55758 Rev. 2.04. This doesn't seem to make any
difference in runtime behavior, but I'd rather waste a kilobyte of SMM
RAM, than debugging possible problems caused from not following the
corresponding specification.

Change-Id: I2ee30d6d1255317efcd3960016069dfe50885aa7
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/85357
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
This commit is contained in:
Felix Held 2024-11-27 22:50:11 +01:00
commit 75424efdc4
1 changed files with 1 additions and 1 deletions
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src/soc/amd/common/block/psp/psp_def.h
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@ -133,7 +133,7 @@ struct mbox_cmd_dtpm_config_buffer {
#define PSP_CMD_TIMEOUT 1000 /* 1 second */
#define C2P_BUFFER_MAXSIZE 0xc00 /* Core-to-PSP buffer */
#define P2C_BUFFER_MAXSIZE 0xc00 /* PSP-to-core buffer */
#define P2C_BUFFER_MAXSIZE 0x1000 /* PSP-to-core buffer */
/* PSP to x86 status */
enum mbox_p2c_status {