AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-04 12:57:07 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

powerpc/mm/book3s64: Move book3s64 code to pgtable-book3s64

Browse Source 
Only code movement and avoid #ifdef.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Aneesh Kumar K.V 2018-04-16 16:57:14 +05:30 committed by Michael Ellerman
parent a42ae34f71
commit 59879d542a
2 changed files with 54 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
arch/powerpc/mm/pgtable-book3s64.c
View File

@ -9,10 +9,13 @@
#include <linux/sched.h>
#include <linux/mm_types.h>
#include <linux/memblock.h>
#include <misc/cxl-base.h>
#include <asm/pgalloc.h>
#include <asm/tlb.h>
#include <asm/trace.h>
#include <asm/powernv.h>
#include "mmu_decl.h"
#include <trace/events/thp.h>
@ -171,3 +174,54 @@ int __meminit remove_section_mapping(unsigned long start, unsigned long end)
return hash__remove_section_mapping(start, end);
}
#endif /* CONFIG_MEMORY_HOTPLUG */
void __init mmu_partition_table_init(void)
{
unsigned long patb_size = 1UL << PATB_SIZE_SHIFT;
unsigned long ptcr;
BUILD_BUG_ON_MSG((PATB_SIZE_SHIFT > 36), "Partition table size too large.");
partition_tb = __va(memblock_alloc_base(patb_size, patb_size,
MEMBLOCK_ALLOC_ANYWHERE));
/* Initialize the Partition Table with no entries */
memset((void *)partition_tb, 0, patb_size);
/*
* update partition table control register,
* 64 K size.
*/
ptcr = __pa(partition_tb) | (PATB_SIZE_SHIFT - 12);
mtspr(SPRN_PTCR, ptcr);
powernv_set_nmmu_ptcr(ptcr);
}
void mmu_partition_table_set_entry(unsigned int lpid, unsigned long dw0,
unsigned long dw1)
{
unsigned long old = be64_to_cpu(partition_tb[lpid].patb0);
partition_tb[lpid].patb0 = cpu_to_be64(dw0);
partition_tb[lpid].patb1 = cpu_to_be64(dw1);
/*
* Global flush of TLBs and partition table caches for this lpid.
* The type of flush (hash or radix) depends on what the previous
* use of this partition ID was, not the new use.
*/
asm volatile("ptesync" : : : "memory");
if (old & PATB_HR) {
asm volatile(PPC_TLBIE_5(%0,%1,2,0,1) : :
"r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
asm volatile(PPC_TLBIE_5(%0,%1,2,1,1) : :
"r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
trace_tlbie(lpid, 0, TLBIEL_INVAL_SET_LPID, lpid, 2, 0, 1);
} else {
asm volatile(PPC_TLBIE_5(%0,%1,2,0,0) : :
"r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
trace_tlbie(lpid, 0, TLBIEL_INVAL_SET_LPID, lpid, 2, 0, 0);
}
/* do we need fixup here ?*/
asm volatile("eieio; tlbsync; ptesync" : : : "memory");
}
EXPORT_SYMBOL_GPL(mmu_partition_table_set_entry);

56
arch/powerpc/mm/pgtable_64.c
View File

@ -33,7 +33,6 @@
#include <linux/swap.h>
#include <linux/stddef.h>
#include <linux/vmalloc.h>
#include <linux/memblock.h>
#include <linux/slab.h>
#include <linux/hugetlb.h>
@ -47,13 +46,11 @@
#include <asm/smp.h>
#include <asm/machdep.h>
#include <asm/tlb.h>
#include <asm/trace.h>
#include <asm/processor.h>
#include <asm/cputable.h>
#include <asm/sections.h>
#include <asm/firmware.h>
#include <asm/dma.h>
#include <asm/powernv.h>
#include "mmu_decl.h"
@ -429,59 +426,6 @@ void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift)
}
#endif
#ifdef CONFIG_PPC_BOOK3S_64
void __init mmu_partition_table_init(void)
{
unsigned long patb_size = 1UL << PATB_SIZE_SHIFT;
unsigned long ptcr;
BUILD_BUG_ON_MSG((PATB_SIZE_SHIFT > 36), "Partition table size too large.");
partition_tb = __va(memblock_alloc_base(patb_size, patb_size,
MEMBLOCK_ALLOC_ANYWHERE));
/* Initialize the Partition Table with no entries */
memset((void *)partition_tb, 0, patb_size);
/*
* update partition table control register,
* 64 K size.
*/
ptcr = __pa(partition_tb) | (PATB_SIZE_SHIFT - 12);
mtspr(SPRN_PTCR, ptcr);
powernv_set_nmmu_ptcr(ptcr);
}
void mmu_partition_table_set_entry(unsigned int lpid, unsigned long dw0,
unsigned long dw1)
{
unsigned long old = be64_to_cpu(partition_tb[lpid].patb0);
partition_tb[lpid].patb0 = cpu_to_be64(dw0);
partition_tb[lpid].patb1 = cpu_to_be64(dw1);
/*
* Global flush of TLBs and partition table caches for this lpid.
* The type of flush (hash or radix) depends on what the previous
* use of this partition ID was, not the new use.
*/
asm volatile("ptesync" : : : "memory");
if (old & PATB_HR) {
asm volatile(PPC_TLBIE_5(%0,%1,2,0,1) : :
"r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
asm volatile(PPC_TLBIE_5(%0,%1,2,1,1) : :
"r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
trace_tlbie(lpid, 0, TLBIEL_INVAL_SET_LPID, lpid, 2, 0, 1);
} else {
asm volatile(PPC_TLBIE_5(%0,%1,2,0,0) : :
"r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
trace_tlbie(lpid, 0, TLBIEL_INVAL_SET_LPID, lpid, 2, 0, 0);
}
/* do we need fixup here ?*/
asm volatile("eieio; tlbsync; ptesync" : : : "memory");
}
EXPORT_SYMBOL_GPL(mmu_partition_table_set_entry);
#endif /* CONFIG_PPC_BOOK3S_64 */
#ifdef CONFIG_STRICT_KERNEL_RWX
void mark_rodata_ro(void)
{