void-packages/srcpkgs/igt-gpu-tools/patches/i-g-t-Fix-global-symbol-loading-failure-in-resolve-function.patch
Đoàn Trần Công Danh 986c0a7d5e srcpkgs/i*: convert patches to -Np1
```sh
git grep -l '^patch_args=-Np0' "srcpkgs/$1*/template" |
while read template; do
	for p in ${template%/template}/patches/*; do
		sed -i '
			\,^[+-][+-][+-] /dev/null,b
			/^[*-]\+ [0-9]\+\(,[0-9]\+\)\? [*-]\+$/b
			s,^[*][*][*] ,&a/,
			/^--- /{
				s,\(^--- \)\(./\)*,\1a/,
				s,[.][Oo][Rr][Ii][Gg]\([	/]\),\1,
				s/[.][Oo][Rr][Ii][Gg]$//
				s/[.]patched[.]\([^.]\)/.\1/
				h
			}
			/^+++ -/{
				g
				s/^--- a/+++ b/
				b
			}
			s,\(^+++ \)\(./\)*,\1b/,
		' "$p"
	done
	sed -i '/^patch_args=/d' $template
done
```
2021-06-20 13:17:29 +07:00

63 lines
1.6 KiB
Diff

diff --git lib/igt_halffloat.c lib/igt_halffloat.c
index 08ab05fc..e5e8a5bd 100644
--- a/lib/igt_halffloat.c
+++ b/lib/igt_halffloat.c
@@ -24,6 +24,19 @@
#include <assert.h>
#include <math.h>
+#include <stdbool.h>
+
+#ifdef HAVE_CPUID_H
+#include <cpuid.h>
+#else
+#define __get_cpuid_max(x, y) 0
+#define __cpuid(level, a, b, c, d) a = b = c = d = 0
+#define __cpuid_count(level, count, a, b, c, d) a = b = c = d = 0
+#endif
+
+#ifndef bit_F16C
+#define bit_F16C (1 << 29)
+#endif
#include "igt_halffloat.h"
#include "igt_x86.h"
@@ -182,6 +195,20 @@ static void half_to_float_f16c(const uint16_t *h, float *f, unsigned int num)
#pragma GCC pop_options
+static bool f16c_is_supported(void)
+{
+ unsigned max = __get_cpuid_max(0, NULL);
+ unsigned eax, ebx, ecx, edx;
+
+ if (max >= 1) {
+ __cpuid(1, eax, ebx, ecx, edx);
+
+ if (ecx & bit_F16C)
+ return true;
+ }
+ return false;
+}
+
static void float_to_half(const float *f, uint16_t *h, unsigned int num)
{
for (int i = 0; i < num; i++)
@@ -196,7 +223,7 @@ static void half_to_float(const uint16_t *h, float *f, unsigned int num)
static void (*resolve_float_to_half(void))(const float *f, uint16_t *h, unsigned int num)
{
- if (igt_x86_features() & F16C)
+ if (f16c_is_supported())
return float_to_half_f16c;
return float_to_half;
@@ -207,7 +234,7 @@ void igt_float_to_half(const float *f, uint16_t *h, unsigned int num)
static void (*resolve_half_to_float(void))(const uint16_t *h, float *f, unsigned int num)
{
- if (igt_x86_features() & F16C)
+ if (f16c_is_supported())
return half_to_float_f16c;
return half_to_float;