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[ODP/PATCH,1/1] Compile ODP for PowerPC platforms

Message ID CA+gU81TE33StEKq8GePt726itgRHqbGFvW4=jR2if5DnOaQaWQ@mail.gmail.com
State Not Applicable, archived
Headers show

Commit Message

Alexandru Badicioiu March 3, 2014, 4:53 a.m. UTC 
From: Alexandru Badicioiu <alexandru.badicioiu@linaro.org>

- define cache line size
- fallback to 32bit atomics on 32bit platforms
- enable hugetlb mappings
- fix compilation errors when hugetlb mappings are not used
- cpuinfo parser

Signed-off-by: Alexandru Badicioiu <alexandru.badicioiu@linaro.org>
---
 include/odp_align.h                               |    4 ++
 include/odp_atomic.h                              |   21 ++++++++-
 platform/linux-generic/source/odp_shared_memory.c |    5 ++-
 platform/linux-generic/source/odp_system_info.c   |   50
++++++++++++++++++++-
 4 files changed, 75 insertions(+), 5 deletions(-)

        #error GCC target not found
@@ -231,13 +272,18 @@ static odp_compiler_info_t compiler_info = {
        .cpu_arch_str = "octeon",
        .cpuinfo_parser = cpuinfo_octeon

+       #elif defined __powerpc__
+       .cpu_arch_str = "powerpc",
+       .cpuinfo_parser = cpuinfo_powerpc
+
        #else
        #error GCC target not found
        #endif
 };


-#if defined __x86_64__ || defined __i386__ || defined __OCTEON__
+#if defined __x86_64__ || defined __i386__ || defined __OCTEON__ || \
+defined __powerpc__

 /*
  * Analysis of /sys/devices/system/cpu/ files
--
1.7.3.4
diff mbox

Patch

diff --git a/include/odp_align.h b/include/odp_align.h
index 0f0c614..67a7cdc 100644
--- a/include/odp_align.h
+++ b/include/odp_align.h
@@ -42,6 +42,10 @@  extern "C" {

 #define ODP_CACHE_LINE_SIZE 128

+#elif defined __powerpc__
+
+#define ODP_CACHE_LINE_SIZE 64
+
 #else
 #error GCC target not found
 #endif
diff --git a/include/odp_atomic.h b/include/odp_atomic.h
index 3a8a18d..763436a 100644
--- a/include/odp_atomic.h
+++ b/include/odp_atomic.h
@@ -353,12 +353,21 @@  static inline void
odp_atomic_add_u64(odp_atomic_u64_t *ptr, uint64_t value)
  *
  * @return Value of the variable before the operation
  */
+
+#if defined __powerpc__ && !defined __powerpc64__
+static inline uint64_t odp_atomic_fetch_add_u64(odp_atomic_u64_t *ptr,
+                                               uint64_t value)
+{
+       return __sync_fetch_and_add((odp_atomic_u32_t *)ptr,
+                                  (uint32_t)value);
+}
+#else
 static inline uint64_t odp_atomic_fetch_add_u64(odp_atomic_u64_t *ptr,
                                                uint64_t value)
 {
        return __sync_fetch_and_add(ptr, value);
 }
-
+#endif
 /**
  * Subtract atomic uint64
  *
@@ -379,12 +388,20 @@  static inline void
odp_atomic_sub_u64(odp_atomic_u64_t *ptr, uint64_t value)
  *
  * @return Value of the variable before the operation
  */
+#if defined __powerpc__ && !defined __powerpc64__
+static inline uint64_t odp_atomic_fetch_sub_u64(odp_atomic_u64_t *ptr,
+                                               uint64_t value)
+{
+       return __sync_fetch_and_sub((odp_atomic_u32_t *)ptr,
+                                  (uint32_t)value);
+}
+#else
 static inline uint64_t odp_atomic_fetch_sub_u64(odp_atomic_u64_t *ptr,
                                                uint64_t value)
 {
        return __sync_fetch_and_sub(ptr, value);
 }
-
+#endif
 /**
  * Fetch and increment atomic uint64 by 1
  *
diff --git a/platform/linux-generic/source/odp_shared_memory.c
b/platform/linux-generic/source/odp_shared_memory.c
index ef4bfcd..b4ec87c 100644
--- a/platform/linux-generic/source/odp_shared_memory.c
+++ b/platform/linux-generic/source/odp_shared_memory.c
@@ -13,6 +13,9 @@ 
 #include <odp_debug.h>

 #include <sys/mman.h>
+#ifdef __powerpc__
+#include <asm/mman.h>
+#endif
 #include <fcntl.h>

 #include <stdio.h>
@@ -97,7 +100,7 @@  void *odp_shm_reserve(const char *name, uint64_t size,
uint64_t align)
        int i;
        odp_shm_block_t *block;
        void *addr;
-       uint64_t huge_sz, page_sz;
+       uint64_t huge_sz ODP_UNUSED, page_sz ODP_UNUSED;

        huge_sz = odp_sys_huge_page_size();
        page_sz = odp_sys_page_size();
diff --git a/platform/linux-generic/source/odp_system_info.c
b/platform/linux-generic/source/odp_system_info.c
index 43129db..17617b0 100644
--- a/platform/linux-generic/source/odp_system_info.c
+++ b/platform/linux-generic/source/odp_system_info.c
@@ -60,7 +60,8 @@  static int sysconf_core_count(void)
 }


-#if defined __x86_64__ || defined __i386__ || defined __OCTEON__
+#if defined __x86_64__ || defined __i386__ || defined __OCTEON__ || \
+defined __powerpc__
 /*
  * Analysis of /sys/devices/system/cpu/ files
  */
@@ -213,6 +214,46 @@  static int cpuinfo_octeon(FILE *file,
odp_system_info_t *sysinfo)

        return 0;
 }
+#elif defined __powerpc__
+static int cpuinfo_powerpc(FILE *file, odp_system_info_t *sysinfo)
+{
+       char str[1024];
+       char *pos;
+       double mhz = 0.0;
+       int model = 0;
+       int count = 2;
+
+       while (fgets(str, sizeof(str), file) != NULL && count > 0) {
+               if (!mhz) {
+                       pos = strstr(str, "clock");
+
+                       if (pos) {
+                               sscanf(pos, "clock : %lf", &mhz);
+                               count--;
+                       }
+               }
+
+               if (!model) {
+                       pos = strstr(str, "cpu");
+
+                       if (pos) {
+                               int len;
+                               pos = strchr(str, ':');
+                               strncpy(sysinfo->model_str, pos+2,
+                                       sizeof(sysinfo->model_str));
+                               len = strlen(sysinfo->model_str);
+                               sysinfo->model_str[len - 1] = 0;
+                               model = 1;
+                               count--;
+                       }
+               }
+
+               sysinfo->cpu_hz = (uint64_t) (mhz * 1000000.0);
+       }
+
+
+       return 0;
+}

 #else