mirror of
https://github.com/torvalds/linux.git
synced 2024-12-04 01:51:34 +00:00
494e5b6fae
sparc: Resolve conflict between sparc v9 and M7 on usage of bit 9 of TTE Bit 9 of TTE is CV (Cacheable in V-cache) on sparc v9 processor while the same bit 9 is MCDE (Memory Corruption Detection Enable) on M7 processor. This creates a conflicting usage of the same bit. Kernel sets TTE.cv bit on all pages for sun4v architecture which works well for sparc v9 but enables memory corruption detection on M7 processor which is not the intent. This patch adds code to determine if kernel is running on M7 processor and takes steps to not enable memory corruption detection in TTE erroneously. Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
158 lines
2.8 KiB
ArmAsm
158 lines
2.8 KiB
ArmAsm
/* ld script for sparc32/sparc64 kernel */
|
|
|
|
#include <asm-generic/vmlinux.lds.h>
|
|
|
|
#include <asm/page.h>
|
|
#include <asm/thread_info.h>
|
|
|
|
#ifdef CONFIG_SPARC32
|
|
#define INITIAL_ADDRESS 0x10000 + SIZEOF_HEADERS
|
|
#define TEXTSTART 0xf0004000
|
|
|
|
#define SMP_CACHE_BYTES_SHIFT 5
|
|
|
|
#else
|
|
#define SMP_CACHE_BYTES_SHIFT 6
|
|
#define INITIAL_ADDRESS 0x4000
|
|
#define TEXTSTART 0x0000000000404000
|
|
|
|
#endif
|
|
|
|
#define SMP_CACHE_BYTES (1 << SMP_CACHE_BYTES_SHIFT)
|
|
|
|
#ifdef CONFIG_SPARC32
|
|
OUTPUT_FORMAT("elf32-sparc", "elf32-sparc", "elf32-sparc")
|
|
OUTPUT_ARCH(sparc)
|
|
ENTRY(_start)
|
|
jiffies = jiffies_64 + 4;
|
|
#else
|
|
/* sparc64 */
|
|
OUTPUT_FORMAT("elf64-sparc", "elf64-sparc", "elf64-sparc")
|
|
OUTPUT_ARCH(sparc:v9a)
|
|
ENTRY(_start)
|
|
jiffies = jiffies_64;
|
|
#endif
|
|
|
|
SECTIONS
|
|
{
|
|
#ifdef CONFIG_SPARC64
|
|
swapper_pg_dir = 0x0000000000402000;
|
|
#endif
|
|
. = INITIAL_ADDRESS;
|
|
.text TEXTSTART :
|
|
{
|
|
_text = .;
|
|
HEAD_TEXT
|
|
TEXT_TEXT
|
|
SCHED_TEXT
|
|
LOCK_TEXT
|
|
KPROBES_TEXT
|
|
IRQENTRY_TEXT
|
|
*(.gnu.warning)
|
|
} = 0
|
|
_etext = .;
|
|
|
|
RO_DATA(PAGE_SIZE)
|
|
|
|
/* Start of data section */
|
|
_sdata = .;
|
|
|
|
.data1 : {
|
|
*(.data1)
|
|
}
|
|
RW_DATA_SECTION(SMP_CACHE_BYTES, 0, THREAD_SIZE)
|
|
|
|
/* End of data section */
|
|
_edata = .;
|
|
|
|
.fixup : {
|
|
__start___fixup = .;
|
|
*(.fixup)
|
|
__stop___fixup = .;
|
|
}
|
|
EXCEPTION_TABLE(16)
|
|
NOTES
|
|
|
|
. = ALIGN(PAGE_SIZE);
|
|
__init_begin = ALIGN(PAGE_SIZE);
|
|
INIT_TEXT_SECTION(PAGE_SIZE)
|
|
__init_text_end = .;
|
|
INIT_DATA_SECTION(16)
|
|
|
|
. = ALIGN(4);
|
|
.tsb_ldquad_phys_patch : {
|
|
__tsb_ldquad_phys_patch = .;
|
|
*(.tsb_ldquad_phys_patch)
|
|
__tsb_ldquad_phys_patch_end = .;
|
|
}
|
|
|
|
.tsb_phys_patch : {
|
|
__tsb_phys_patch = .;
|
|
*(.tsb_phys_patch)
|
|
__tsb_phys_patch_end = .;
|
|
}
|
|
|
|
.cpuid_patch : {
|
|
__cpuid_patch = .;
|
|
*(.cpuid_patch)
|
|
__cpuid_patch_end = .;
|
|
}
|
|
|
|
.sun4v_1insn_patch : {
|
|
__sun4v_1insn_patch = .;
|
|
*(.sun4v_1insn_patch)
|
|
__sun4v_1insn_patch_end = .;
|
|
}
|
|
.sun4v_2insn_patch : {
|
|
__sun4v_2insn_patch = .;
|
|
*(.sun4v_2insn_patch)
|
|
__sun4v_2insn_patch_end = .;
|
|
}
|
|
.leon_1insn_patch : {
|
|
__leon_1insn_patch = .;
|
|
*(.leon_1insn_patch)
|
|
__leon_1insn_patch_end = .;
|
|
}
|
|
.swapper_tsb_phys_patch : {
|
|
__swapper_tsb_phys_patch = .;
|
|
*(.swapper_tsb_phys_patch)
|
|
__swapper_tsb_phys_patch_end = .;
|
|
}
|
|
.swapper_4m_tsb_phys_patch : {
|
|
__swapper_4m_tsb_phys_patch = .;
|
|
*(.swapper_4m_tsb_phys_patch)
|
|
__swapper_4m_tsb_phys_patch_end = .;
|
|
}
|
|
.popc_3insn_patch : {
|
|
__popc_3insn_patch = .;
|
|
*(.popc_3insn_patch)
|
|
__popc_3insn_patch_end = .;
|
|
}
|
|
.popc_6insn_patch : {
|
|
__popc_6insn_patch = .;
|
|
*(.popc_6insn_patch)
|
|
__popc_6insn_patch_end = .;
|
|
}
|
|
.pause_3insn_patch : {
|
|
__pause_3insn_patch = .;
|
|
*(.pause_3insn_patch)
|
|
__pause_3insn_patch_end = .;
|
|
}
|
|
.sun_m7_2insn_patch : {
|
|
__sun_m7_2insn_patch = .;
|
|
*(.sun_m7_2insn_patch)
|
|
__sun_m7_2insn_patch_end = .;
|
|
}
|
|
PERCPU_SECTION(SMP_CACHE_BYTES)
|
|
|
|
. = ALIGN(PAGE_SIZE);
|
|
__init_end = .;
|
|
BSS_SECTION(0, 0, 0)
|
|
_end = . ;
|
|
|
|
STABS_DEBUG
|
|
DWARF_DEBUG
|
|
|
|
DISCARDS
|
|
}
|