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sna: Print detected CPU features 

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2013-02-26 09:41:14 +00:00
parent 528dbf9ebb
commit 13461a18b1
3 changed files with 29 additions and 1 deletions
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1
src/sna/sna.h
View File

@ -868,6 +868,7 @@ inline static bool is_clipped(const RegionRec *r,
}
unsigned sna_cpu_detect(void);
char *sna_cpu_features_to_string(unsigned features, char *line);
void sna_threads_init(void);
int sna_use_threads (int width, int height, int threshold);

26
src/sna/sna_cpu.c
View File

@ -44,7 +44,7 @@ unsigned sna_cpu_detect(void)
unsigned int eax, ebx, ecx, edx;
unsigned features = 0;
__cpuid(0, eax, ebx, ecx, edx);
__cpuid(1, eax, ebx, ecx, edx);
if (eax & bit_SSE3)
features |= SSE3;
@ -89,3 +89,27 @@ unsigned sna_cpu_detect(void)
}
#endif
char *sna_cpu_features_to_string(unsigned features, char *line)
{
char *ret = line;
if (features & SSE2)
line += sprintf (line, ", sse2");
if (features & SSE3)
line += sprintf (line, ", sse3");
if (features & SSSE3)
line += sprintf (line, ", ssse3");
if (features & SSE4a)
line += sprintf (line, ", sse4a");
if (features & SSE4_1)
line += sprintf (line, ", sse4.1");
if (features & SSE4_2)
line += sprintf (line, ", sse4.2");
if (features & AVX)
line += sprintf (line, ", avx");
if (features & AVX2)
line += sprintf (line, ", avx2");
return ret + 2;
}

3
src/sna/sna_driver.c
View File

@ -451,6 +451,7 @@ static Bool sna_option_cast_to_bool(struct sna *sna, int id, Bool val)
static Bool sna_pre_init(ScrnInfoPtr scrn, int flags)
{
struct sna *sna;
char buf[1024];
rgb defaultWeight = { 0, 0, 0 };
EntityInfoPtr pEnt;
int preferred_depth;
@ -582,6 +583,8 @@ static Bool sna_pre_init(ScrnInfoPtr scrn, int flags)
if (xf86ReturnOptValBool(sna->Options, OPTION_CRTC_PIXMAPS, FALSE))
sna->flags |= SNA_FORCE_SHADOW;
xf86DrvMsg(scrn->scrnIndex, X_PROBED, "CPU: %s\n",
sna_cpu_features_to_string(sna->cpu_features, buf));
xf86DrvMsg(scrn->scrnIndex, X_CONFIG, "Framebuffer %s\n",
sna->tiling & SNA_TILING_FB ? "tiled" : "linear");
xf86DrvMsg(scrn->scrnIndex, X_CONFIG, "Pixmaps %s\n",