[PATCH 09/12] pstore: Add pstore address from coreboot tables

[Stephen Boyd]

Set the pstore address and size based on the coreboot tables if the
coreboot tables are populated.

Signed-off-by: Stephen Boyd <swb...@chromium.org>
---
 cmd/pstore.c | 44 +++++++++++++++++++++++++++++++++++---------
 1 file changed, 35 insertions(+), 9 deletions(-)

diff --git a/cmd/pstore.c b/cmd/pstore.c
index 9795eea2dbc3..dccbf455e299 100644
--- a/cmd/pstore.c
+++ b/cmd/pstore.c
@@ -3,8 +3,10 @@
  * Copyright © 2019 Collabora Ltd
  */
 
+#include <cb_sysinfo.h>
 #include <config.h>
 #include <command.h>
+#include <event.h>
 #include <fdtdec.h>
 #include <fs.h>
 #include <log.h>
@@ -141,6 +143,19 @@ static void pstore_init_buffer_size(void)
                buffer_size = pstore_pmsg_size;
 }
 
+static void pstore_set_end(void)
+{
+       if (pstore_length < (pstore_record_size + pstore_console_size
+                            + pstore_ftrace_size + pstore_pmsg_size)) {
+               printf("pstore <len> should be larger than the sum of all 
records sizes\n");
+               pstore_length = 0;
+       }
+
+       log_debug("pstore set done: start 0x%08llx - length 0x%llx\n",
+                 (unsigned long long)pstore_addr,
+                 (unsigned long long)pstore_length);
+}
+
 /**
  * pstore_set() - Initialize PStore settings from command line arguments
  * @cmdtp: Command data struct pointer
@@ -194,19 +209,30 @@ static int pstore_set(struct cmd_tbl *cmdtp, int flag,  
int argc,
        if (argc > 7)
                pstore_ecc_size = hextoul(argv[7], NULL);
 
-       if (pstore_length < (pstore_record_size + pstore_console_size
-                            + pstore_ftrace_size + pstore_pmsg_size)) {
-               printf("pstore <len> should be larger than the sum of all 
records sizes\n");
-               pstore_length = 0;
-       }
-
-       log_debug("pstore set done: start 0x%08llx - length 0x%llx\n",
-                 (unsigned long long)pstore_addr,
-                 (unsigned long long)pstore_length);
+       pstore_set_end();
 
        return 0;
 }
 
+#if CONFIG_IS_ENABLED(SYS_COREBOOT)
+static int pstore_coreboot_init(void)
+{
+       const struct sysinfo_t *sysinfo;
+
+       sysinfo = cb_get_sysinfo();
+       if (!sysinfo)
+               return 0;
+
+       pstore_addr = sysinfo->ramoops_buffer;
+       pstore_length = sysinfo->ramoops_buffer_size;
+
+       pstore_set_end();
+
+       return 0;
+}
+EVENT_SPY_SIMPLE(EVT_LAST_STAGE_INIT, pstore_coreboot_init);
+#endif
+
 /**
  * pstore_print_buffer() - Print buffer
  * @type: buffer type
-- 
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