5  * /dev/nvram driver for PPC64
13 #include <linux/nvram.h>
23 #include <asm/nvram.h>
91  * holding the timestamp. oops_buf[] gets written to NVRAM.
153  * We need to buffer the error logs into nvram to ensure that we have
160  * captured to disk, thus we buffer it in NVRAM for analysis on the
163  * In NVRAM the partition containing the error log buffer will looks like:
217  * Reads nvram partition for at most 'length'
284 		pr_info("nvram: Found too small %s partition,"  in nvram_init_os_partition()
295 			pr_info("nvram: No room to create %s partition, "  in nvram_init_os_partition()
306 		pr_err("nvram: Failed to find or create %s"  in nvram_init_os_partition()
359 		pr_err("nvram: compression failed; returned %d\n", zipped_len);  in zip_oops()
360 		pr_err("nvram: logging uncompressed oops/panic report\n");  in zip_oops()
378  * nvram_pstore_write - pstore write callback for nvram
478 			pr_err("nvram: Failed to find partition %s, "  in nvram_pstore_read()
536 	.name = "nvram",
558 		/* Print error only when pstore.backend == nvram */  in nvram_pstore_init()
559 		pr_err("nvram: pstore_register() failed, returned %d. "  in nvram_pstore_init()
579 			pr_err("nvram: Failed to initialize oops partition!");  in nvram_init_oops_partition()
582 		pr_notice("nvram: Using %s partition to log both"  in nvram_init_oops_partition()
588 		pr_err("nvram: Failed to initialize oops partition!");  in nvram_init_oops_partition()
594 		pr_err("nvram: No memory for %s partition\n",  in nvram_init_oops_partition()
617 			pr_err("nvram: No memory for compression workspace; "  in nvram_init_oops_partition()
631 		pr_err("nvram: kmsg_dump_register() failed; returned %d\n", rc);  in nvram_init_oops_partition()
777  * nvram_remove_partition - Remove one or more partitions in nvram
831  * nvram_create_partition - Create a partition in nvram
837  * Returns a negative error code or a positive nvram index
945  * nvram_get_partition_size - Get the data size of an nvram partition
963  * nvram_find_partition - Find an nvram partition by signature and name
1009 			       "nvram partitions\n");  in nvram_scan_partitions()
1022 			printk(KERN_WARNING "WARNING: nvram partition checksum"  in nvram_scan_partitions()
1025 			printk(KERN_WARNING "Terminating nvram partition scan\n");  in nvram_scan_partitions()
1029 			printk(KERN_WARNING "WARNING: nvram corruption "  in nvram_scan_partitions()
1049 	nvram_print_partitions("NVRAM Partitions");  in nvram_scan_partitions()