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sparc64: recognize and support Sonoma CPU type

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Add code to recognize SPARC-Sonoma cpu correctly and update cpu hardware
caps and cpu distribution map. SPARC-Sonoma is based upon SPARC-M7 core
along with additional PCI functions added on and is reported by firmware
as "SPARC-SN".

Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com>
Acked-by: Allen Pais <allen.pais@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Khalid Aziz
2016-04-19 11:12:54 -06:00
committed by David S. Miller
parent 5bde2c9be7
commit c5b8b5beee
6 changed files with 25 additions and 1 deletions
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3
arch/sparc/mm/init_64.c
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@@ -1769,6 +1769,7 @@ static void __init setup_page_offset(void)
max_phys_bits = 47;
break;
case SUN4V_CHIP_SPARC_M7:
case SUN4V_CHIP_SPARC_SN:
default:
/* M7 and later support 52-bit virtual addresses. */
sparc64_va_hole_top = 0xfff8000000000000UL;
@@ -1986,6 +1987,7 @@ static void __init sun4v_linear_pte_xor_finalize(void)
*/
switch (sun4v_chip_type) {
case SUN4V_CHIP_SPARC_M7:
case SUN4V_CHIP_SPARC_SN:
pagecv_flag = 0x00;
break;
default:
@@ -2138,6 +2140,7 @@ void __init paging_init(void)
*/
switch (sun4v_chip_type) {
case SUN4V_CHIP_SPARC_M7:
case SUN4V_CHIP_SPARC_SN:
page_cache4v_flag = _PAGE_CP_4V;
break;
default: