Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 8207d4ee authored by Helge Deller's avatar Helge Deller
Browse files

parisc: Show machine product number during boot 



Ask PDC firmware during boot for the original and current product
number as well as the serial number and show it (if available).

Signed-off-by: default avatarHelge Deller <deller@gmx.de>
parent 661faf31

arch/parisc/include/asm/pdc.h

+1 −0
Original line number Diff line number Diff line
@@ -44,6 +44,7 @@ int pdc_model_sysmodel(char *name); 
int pdc_model_cpuid(unsigned long *cpu_id);

int pdc_model_versions(unsigned long *versions, int id);

int pdc_model_capabilities(unsigned long *capabilities);

int pdc_model_platform_info(char *orig_prod_num, char *current_prod_num, char *serial_no);

int pdc_cache_info(struct pdc_cache_info *cache);

int pdc_spaceid_bits(unsigned long *space_bits);

#ifndef CONFIG_PA20

arch/parisc/kernel/firmware.c

+24 −0
Original line number Diff line number Diff line
@@ -568,6 +568,30 @@ int pdc_model_capabilities(unsigned long *capabilities) 
        return retval;

}



/**

 * pdc_model_platform_info - Returns machine product and serial number.

 * @orig_prod_num: Return buffer for original product number.

 * @current_prod_num: Return buffer for current product number.

 * @serial_no: Return buffer for serial number.

 *

 * Returns strings containing the original and current product numbers and the

 * serial number of the system.

 */

int pdc_model_platform_info(char *orig_prod_num, char *current_prod_num,

		char *serial_no)

{

	int retval;

	unsigned long flags;



	spin_lock_irqsave(&pdc_lock, flags);

	retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_GET_PLATFORM_INFO,

		__pa(orig_prod_num), __pa(current_prod_num), __pa(serial_no));

	convert_to_wide(pdc_result);

	spin_unlock_irqrestore(&pdc_lock, flags);



	return retval;

}



/**

 * pdc_cache_info - Return cache and TLB information.

 * @cache_info: The return buffer.

arch/parisc/kernel/processor.c

+9 −0
Original line number Diff line number Diff line
@@ -242,6 +242,7 @@ static int __init processor_probe(struct parisc_device *dev) 
void __init collect_boot_cpu_data(void)

{

	unsigned long cr16_seed;

	char orig_prod_num[64], current_prod_num[64], serial_no[64];



	memset(&boot_cpu_data, 0, sizeof(boot_cpu_data));
@@ -301,6 +302,14 @@ void __init collect_boot_cpu_data(void) 
	_parisc_requires_coherency = (boot_cpu_data.cpu_type == mako) ||

				(boot_cpu_data.cpu_type == mako2);

#endif



	if (pdc_model_platform_info(orig_prod_num, current_prod_num, serial_no) == PDC_OK) {

		printk(KERN_INFO "product %s, original product %s, S/N: %s\n",

			current_prod_num, orig_prod_num, serial_no);

		add_device_randomness(orig_prod_num, strlen(orig_prod_num));

		add_device_randomness(current_prod_num, strlen(current_prod_num));

		add_device_randomness(serial_no, strlen(serial_no));

	}

}