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- Implement VSX detection on FreeBSD
--- aom_ports/ppc_cpudetect.c.orig 2021-07-20 22:23:15 UTC
+++ aom_ports/ppc_cpudetect.c
@@ -9,12 +9,6 @@
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
-#include <fcntl.h>
-#include <unistd.h>
-#include <stdint.h>
-#include <asm/cputable.h>
-#include <linux/auxvec.h>
-
#include "config/aom_config.h"
#include "aom_ports/ppc.h"
@@ -37,6 +31,13 @@ static int cpu_env_mask(void) {
return env && *env ? (int)strtol(env, NULL, 0) : ~0;
}
+#if defined(__linux__)
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <asm/cputable.h>
+#include <linux/auxvec.h>
+
int ppc_simd_caps(void) {
int flags;
int mask;
@@ -75,6 +76,34 @@ out_close:
close(fd);
return flags & mask;
}
+#elif defined(__FreeBSD__)
+#include <sys/auxv.h>
+#include <machine/cpu.h>
+
+int ppc_simd_caps(void) {
+ int flags;
+ int mask;
+ u_long hwcap = 0;
+
+ // If AOM_SIMD_CAPS is set then allow only those capabilities.
+ if (!cpu_env_flags(&flags)) {
+ return flags;
+ }
+
+ mask = cpu_env_mask();
+
+ elf_aux_info(AT_HWCAP, &hwcap, sizeof(hwcap));
+#if HAVE_VSX
+ if (hwcap & PPC_FEATURE_HAS_VSX) flags |= HAS_VSX;
+#endif
+
+ return flags & mask;
+}
+#else
+#error \
+ "--enable-runtime-cpu-detect selected, but no CPU detection method " \
+"available for your platform. Reconfigure with --disable-runtime-cpu-detect."
+#endif /* end __FreeBSD__ */
#else
// If there is no RTCD the function pointers are not used and can not be
// changed.
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