Re: [PATCH v2 04/13] Drop a bunch of metag references
From: Guenter Roeck
Date: Fri Feb 23 2018 - 09:28:29 EST
On 02/23/2018 02:53 AM, James Hogan wrote:
Now that arch/metag/ has been removed, drop a bunch of metag references
in various codes across the whole tree:
- VM_GROWSUP and __VM_ARCH_PECIFIC_1.
- MT_METAG_* ELF note types.
- METAG Kconfig dependencies (FRAME_POINTER) and ranges
(MAX_STACK_SIZE_MB).
- metag cases in tools (checkstack.pl, recordmcount.c, perf).
Signed-off-by: James Hogan <jhogan@xxxxxxxxxx>
Acked-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Cc: linux-mm@xxxxxxxxx
Cc: linux-metag@xxxxxxxxxxxxxxx
Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
Changes in v2:
- Drop CPUHP_AP_PERF_METAG_STARTING too (Guenter).
---
include/linux/cpuhotplug.h | 1 -
include/linux/mm.h | 2 --
include/trace/events/mmflags.h | 2 +-
include/uapi/linux/elf.h | 3 ---
lib/Kconfig.debug | 2 +-
mm/Kconfig | 7 +++----
scripts/checkstack.pl | 4 ----
scripts/recordmcount.c | 20 --------------------
tools/perf/perf-sys.h | 4 ----
9 files changed, 5 insertions(+), 40 deletions(-)
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index 5172ad0daa7c..c7a950681f3a 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -108,7 +108,6 @@ enum cpuhp_state {
CPUHP_AP_PERF_X86_CQM_STARTING,
CPUHP_AP_PERF_X86_CSTATE_STARTING,
CPUHP_AP_PERF_XTENSA_STARTING,
- CPUHP_AP_PERF_METAG_STARTING,
CPUHP_AP_MIPS_OP_LOONGSON3_STARTING,
CPUHP_AP_ARM_SDEI_STARTING,
CPUHP_AP_ARM_VFP_STARTING,
diff --git a/include/linux/mm.h b/include/linux/mm.h
index ad06d42adb1a..ccac10682ce5 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -241,8 +241,6 @@ extern unsigned int kobjsize(const void *objp);
# define VM_SAO VM_ARCH_1 /* Strong Access Ordering (powerpc) */
#elif defined(CONFIG_PARISC)
# define VM_GROWSUP VM_ARCH_1
-#elif defined(CONFIG_METAG)
-# define VM_GROWSUP VM_ARCH_1
#elif defined(CONFIG_IA64)
# define VM_GROWSUP VM_ARCH_1
#elif !defined(CONFIG_MMU)
diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
index dbe1bb058c09..a81cffb76d89 100644
--- a/include/trace/events/mmflags.h
+++ b/include/trace/events/mmflags.h
@@ -115,7 +115,7 @@ IF_HAVE_PG_IDLE(PG_idle, "idle" )
#define __VM_ARCH_SPECIFIC_1 {VM_PAT, "pat" }
#elif defined(CONFIG_PPC)
#define __VM_ARCH_SPECIFIC_1 {VM_SAO, "sao" }
-#elif defined(CONFIG_PARISC) || defined(CONFIG_METAG) || defined(CONFIG_IA64)
+#elif defined(CONFIG_PARISC) || defined(CONFIG_IA64)
#define __VM_ARCH_SPECIFIC_1 {VM_GROWSUP, "growsup" }
#elif !defined(CONFIG_MMU)
#define __VM_ARCH_SPECIFIC_1 {VM_MAPPED_COPY,"mappedcopy" }
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index 3bf73fb58045..e2535d6dcec7 100644
--- a/include/uapi/linux/elf.h
+++ b/include/uapi/linux/elf.h
@@ -420,9 +420,6 @@ typedef struct elf64_shdr {
#define NT_ARM_HW_WATCH 0x403 /* ARM hardware watchpoint registers */
#define NT_ARM_SYSTEM_CALL 0x404 /* ARM system call number */
#define NT_ARM_SVE 0x405 /* ARM Scalable Vector Extension registers */
-#define NT_METAG_CBUF 0x500 /* Metag catch buffer registers */
-#define NT_METAG_RPIPE 0x501 /* Metag read pipeline state */
-#define NT_METAG_TLS 0x502 /* Metag TLS pointer */
#define NT_ARC_V2 0x600 /* ARCv2 accumulator/extra registers */
/* Note header in a PT_NOTE section */
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 6088408ef26c..d1c523e408e9 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -356,7 +356,7 @@ config FRAME_POINTER
bool "Compile the kernel with frame pointers"
depends on DEBUG_KERNEL && \
(CRIS || M68K || FRV || UML || \
- SUPERH || BLACKFIN || MN10300 || METAG) || \
+ SUPERH || BLACKFIN || MN10300) || \
ARCH_WANT_FRAME_POINTERS
default y if (DEBUG_INFO && UML) || ARCH_WANT_FRAME_POINTERS
help
diff --git a/mm/Kconfig b/mm/Kconfig
index c782e8fb7235..abefa573bcd8 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -627,15 +627,14 @@ config GENERIC_EARLY_IOREMAP
config MAX_STACK_SIZE_MB
int "Maximum user stack size for 32-bit processes (MB)"
default 80
- range 8 256 if METAG
range 8 2048
depends on STACK_GROWSUP && (!64BIT || COMPAT)
help
This is the maximum stack size in Megabytes in the VM layout of 32-bit
user processes when the stack grows upwards (currently only on parisc
- and metag arch). The stack will be located at the highest memory
- address minus the given value, unless the RLIMIT_STACK hard limit is
- changed to a smaller value in which case that is used.
+ arch). The stack will be located at the highest memory address minus
+ the given value, unless the RLIMIT_STACK hard limit is changed to a
+ smaller value in which case that is used.
A sane initial value is 80 MB.
diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl
index cb993801e4b2..eeb9ac8dbcfb 100755
--- a/scripts/checkstack.pl
+++ b/scripts/checkstack.pl
@@ -64,10 +64,6 @@ my (@stack, $re, $dre, $x, $xs, $funcre);
# 2b6c: 4e56 fb70 linkw %fp,#-1168
# 1df770: defc ffe4 addaw #-28,%sp
$re = qr/.*(?:linkw %fp,|addaw )#-([0-9]{1,4})(?:,%sp)?$/o;
- } elsif ($arch eq 'metag') {
- #400026fc: 40 00 00 82 ADD A0StP,A0StP,#0x8
- $re = qr/.*ADD.*A0StP,A0StP,\#(0x$x{1,8})/o;
- $funcre = qr/^$x* <[^\$](.*)>:$/;
} elsif ($arch eq 'mips64') {
#8800402c: 67bdfff0 daddiu sp,sp,-16
$re = qr/.*daddiu.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
index 16e086dcc567..8c9691c3329e 100644
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -33,20 +33,6 @@
#include <string.h>
#include <unistd.h>
-/*
- * glibc synced up and added the metag number but didn't add the relocations.
- * Work around this in a crude manner for now.
- */
-#ifndef EM_METAG
-#define EM_METAG 174
-#endif
-#ifndef R_METAG_ADDR32
-#define R_METAG_ADDR32 2
-#endif
-#ifndef R_METAG_NONE
-#define R_METAG_NONE 3
-#endif
-
#ifndef EM_AARCH64
#define EM_AARCH64 183
#define R_AARCH64_NONE 0
@@ -538,12 +524,6 @@ do_file(char const *const fname)
gpfx = '_';
break;
case EM_IA_64: reltype = R_IA64_IMM64; gpfx = '_'; break;
- case EM_METAG: reltype = R_METAG_ADDR32;
- altmcount = "_mcount_wrapper";
- rel_type_nop = R_METAG_NONE;
- /* We happen to have the same requirement as MIPS */
- is_fake_mcount32 = MIPS32_is_fake_mcount;
- break;
case EM_MIPS: /* reltype: e_class */ gpfx = '_'; break;
case EM_PPC: reltype = R_PPC_ADDR32; gpfx = '_'; break;
case EM_PPC64: reltype = R_PPC64_ADDR64; gpfx = '_'; break;
diff --git a/tools/perf/perf-sys.h b/tools/perf/perf-sys.h
index 36673f98d66b..3eb7a39169f6 100644
--- a/tools/perf/perf-sys.h
+++ b/tools/perf/perf-sys.h
@@ -46,10 +46,6 @@
#define CPUINFO_PROC {"Processor"}
#endif
-#ifdef __metag__
-#define CPUINFO_PROC {"CPU"}
-#endif
-
#ifdef __xtensa__
#define CPUINFO_PROC {"core ID"}
#endif