[Mesa-dev] [PATCH 05/14] anv: use POSIX sysconf to get memory info on non-glibc systems

Greg V greg at unrelenting.technology
Sun Dec 31 16:55:19 UTC 2017


---
 src/intel/vulkan/anv_device.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index 6f77d33f93..2d3062d103 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -25,7 +25,9 @@
 #include <stdbool.h>
 #include <string.h>
 #include <sys/mman.h>
+#ifdef __GLIBC__
 #include <sys/sysinfo.h>
+#endif
 #include <unistd.h>
 #include <fcntl.h>
 #include <xf86drm.h>
@@ -79,10 +81,15 @@ anv_compute_heap_size(int fd, uint64_t *heap_size)
    }
 
    /* Query the total ram from the system */
+#ifdef __GLIBC__
    struct sysinfo info;
    sysinfo(&info);
 
    uint64_t total_ram = (uint64_t)info.totalram * (uint64_t)info.mem_unit;
+#else
+   uint64_t total_ram = sysconf(_SC_PHYS_PAGES) * sysconf(_SC_PAGE_SIZE);
+#endif
+
 
    /* We don't want to burn too much ram with the GPU.  If the user has 4GiB
     * or less, we use at most half.  If they have more than 4GiB, we use 3/4.
-- 
2.15.1



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