[Mesa-dev] [PATCH 1/2] anv: get total system memory on OpenBSD

[Jonathan Gray]

Use sysctl to get total ram on OpenBSD where sysinfo() is not available.

Signed-off-by: Jonathan Gray <jsg at jsg.id.au>
---
 src/intel/vulkan/anv_device.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index 250f75e9936..81e3905ae99 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -25,7 +25,12 @@
 #include <stdbool.h>
 #include <string.h>
 #include <sys/mman.h>
+#ifdef __OpenBSD__
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#else
 #include <sys/sysinfo.h>
+#endif
 #include <unistd.h>
 #include <fcntl.h>
 #include <xf86drm.h>
@@ -97,10 +102,19 @@ static uint64_t
 anv_compute_heap_size(int fd, uint64_t gtt_size)
 {
    /* Query the total ram from the system */
+#ifdef __OpenBSD__
+   int mib[] = { CTL_HW, HW_PHYSMEM64 };
+   int64_t total_ram;
+   size_t size = sizeof(total_ram);
+
+   if (sysctl(mib, 2, &total_ram, &size, NULL, 0) == -1)
+      return 0;
+#else
    struct sysinfo info;
    sysinfo(&info);
 
    uint64_t total_ram = (uint64_t)info.totalram * (uint64_t)info.mem_unit;
+#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.
-- 
2.24.0