soc/amd/common/vboot: Remove parameter to replay_transfer_buffer_cbmemc

We don't need to force the caller to look up and cast the transfer
region. We can do it in the function.

BUG=b:221231786
TEST=Build guybrush

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ib46a673ef5a43deb56a6d522152085036a47ab66
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62401
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>

src/soc/amd/cezanne/include/soc/psp_transfer.h

@@ -54,7 +54,7 @@ void verify_psp_transfer_buf(void);
 /* Display the transfer block's PSP_info data */
 void show_psp_transfer_info(void);
 /* Replays the pre-x86 cbmem console into the x86 cbmem console */
-void replay_transfer_buffer_cbmemc(const struct transfer_info_struct *info);
+void replay_transfer_buffer_cbmemc(void);
 /* Called by bootblock_c_entry in the VBOOT_STARTS_BEFORE_BOOTBLOCK case */
 void boot_with_psp_timestamp(uint64_t base_timestamp);
 

src/soc/amd/common/vboot/transfer_buffer.c

@@ -61,12 +61,17 @@ void show_psp_transfer_info(void)
 	}
 }
 
-void replay_transfer_buffer_cbmemc(const struct transfer_info_struct *info)
+void replay_transfer_buffer_cbmemc(void)
 {
+	const struct transfer_info_struct *info = (const struct transfer_info_struct *)
+		(void *)(uintptr_t)_transfer_buffer;
 
 	void *cbmemc;
 	size_t cbmemc_size;
 
+	if (!transfer_buffer_valid(info))
+		return;
+
 	if (info->console_offset < sizeof(*info))
 		return;
 

src/soc/amd/common/vboot/vboot_bootblock.c

@@ -14,7 +14,7 @@ void boot_with_psp_timestamp(uint64_t base_timestamp)
 	if (!transfer_buffer_valid(info) || info->timestamp == 0)
 		return;
 
-	replay_transfer_buffer_cbmemc(info);
+	replay_transfer_buffer_cbmemc();
 
 	/*
 	 * info->timestamp is PSP's timestamp (in microseconds)

src/soc/amd/picasso/include/soc/psp_transfer.h

@@ -54,7 +54,7 @@ void verify_psp_transfer_buf(void);
 /* Display the transfer block's PSP_info data */
 void show_psp_transfer_info(void);
 /* Replays the pre-x86 cbmem console into the x86 cbmem console */
-void replay_transfer_buffer_cbmemc(const struct transfer_info_struct *info);
+void replay_transfer_buffer_cbmemc(void);
 /* Called by bootblock_c_entry in the VBOOT_STARTS_BEFORE_BOOTBLOCK case */
 void boot_with_psp_timestamp(uint64_t base_timestamp);
 

src/soc/amd/sabrina/include/soc/psp_transfer.h

@@ -56,7 +56,7 @@ void verify_psp_transfer_buf(void);
 /* Display the transfer block's PSP_info data */
 void show_psp_transfer_info(void);
 /* Replays the pre-x86 cbmem console into the x86 cbmem console */
-void replay_transfer_buffer_cbmemc(const struct transfer_info_struct *info);
+void replay_transfer_buffer_cbmemc(void);
 /* Called by bootblock_c_entry in the VBOOT_STARTS_BEFORE_BOOTBLOCK case */
 void boot_with_psp_timestamp(uint64_t base_timestamp);