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

Commit e543b3a6 authored by Helge Deller's avatar Helge Deller
Browse files

parisc: Retrieve and display the PDC PAT capabilities 



Signed-off-by: default avatarHelge Deller <deller@gmx.de>
parent 4c5fe5db

arch/parisc/include/asm/pdc.h

+1 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ extern int parisc_narrow_firmware; 
extern int pdc_type;

extern unsigned long parisc_cell_num; /* cell number the CPU runs on (PAT) */

extern unsigned long parisc_cell_loc; /* cell location of CPU (PAT)	   */

extern unsigned long parisc_pat_pdc_cap; /* PDC capabilities (PAT) */



/* Values for pdc_type */

#define PDC_TYPE_ILLEGAL	-1

arch/parisc/kernel/inventory.c

+10 −0
Original line number Diff line number Diff line
@@ -43,6 +43,7 @@ int pdc_type __read_mostly = PDC_TYPE_ILLEGAL; 
/* cell number and location (PAT firmware only) */

unsigned long parisc_cell_num __read_mostly;

unsigned long parisc_cell_loc __read_mostly;

unsigned long parisc_pat_pdc_cap __read_mostly;





void __init setup_pdc(void)
@@ -81,12 +82,21 @@ void __init setup_pdc(void) 
#ifdef CONFIG_64BIT

	status = pdc_pat_cell_get_number(&cell_info);

	if (status == PDC_OK) {

		unsigned long legacy_rev, pat_rev;

		pdc_type = PDC_TYPE_PAT;

		pr_cont("64 bit PAT.\n");

		parisc_cell_num = cell_info.cell_num;

		parisc_cell_loc = cell_info.cell_loc;

		pr_info("PAT: Running on cell %lu and location %lu.\n",

			parisc_cell_num, parisc_cell_loc);

		status = pdc_pat_pd_get_pdc_revisions(&legacy_rev,

			&pat_rev, &parisc_pat_pdc_cap);

		pr_info("PAT: legacy revision 0x%lx, pat_rev 0x%lx, pdc_cap 0x%lx, S-PTLB %d, HPMC_RENDEZ %d.\n",

			legacy_rev, pat_rev, parisc_pat_pdc_cap,

			parisc_pat_pdc_cap

			 & PDC_PAT_CAPABILITY_BIT_SIMULTANEOUS_PTLB ? 1:0,

			parisc_pat_pdc_cap

			 & PDC_PAT_CAPABILITY_BIT_PDC_HPMC_RENDEZ   ? 1:0);

		return;

	}

#endif