Deleted Added
sdiff udiff text old ( 184205 ) new ( 184802 )
full compact
hwpmc_x86.c (184205) hwpmc_x86.c (184802)
1/*-
2 * Copyright (c) 2005,2008 Joseph Koshy
3 * Copyright (c) 2007 The FreeBSD Foundation
4 * All rights reserved.
5 *
6 * Portions of this software were developed by A. Joseph Koshy under
7 * sponsorship from the FreeBSD Foundation and Google, Inc.
8 *

--- 15 unchanged lines hidden (view full) ---

24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 2005,2008 Joseph Koshy
3 * Copyright (c) 2007 The FreeBSD Foundation
4 * All rights reserved.
5 *
6 * Portions of this software were developed by A. Joseph Koshy under
7 * sponsorship from the FreeBSD Foundation and Google, Inc.
8 *

--- 15 unchanged lines hidden (view full) ---

24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD: head/sys/dev/hwpmc/hwpmc_x86.c 184205 2008-10-23 15:53:51Z des $");
32__FBSDID("$FreeBSD: head/sys/dev/hwpmc/hwpmc_x86.c 184802 2008-11-09 17:37:54Z jkoshy $");
33
34#include <sys/param.h>
35#include <sys/bus.h>
36#include <sys/pmc.h>
37#include <sys/proc.h>
38#include <sys/systm.h>
39
40#include <machine/cpu.h>

--- 194 unchanged lines hidden (view full) ---

235 break;
236 pc = *(uintptr_t *) r;
237 fp = *(uintptr_t *) fp;
238 }
239
240 return (n);
241}
242
33
34#include <sys/param.h>
35#include <sys/bus.h>
36#include <sys/pmc.h>
37#include <sys/proc.h>
38#include <sys/systm.h>
39
40#include <machine/cpu.h>

--- 194 unchanged lines hidden (view full) ---

235 break;
236 pc = *(uintptr_t *) r;
237 fp = *(uintptr_t *) fp;
238 }
239
240 return (n);
241}
242
243static struct pmc_mdep *
244pmc_intel_initialize(void)
245{
246 struct pmc_mdep *pmc_mdep;
247 enum pmc_cputype cputype;
248 int error, model;
249
250 KASSERT(strcmp(cpu_vendor, "GenuineIntel") == 0,
251 ("[intel,%d] Initializing non-intel processor", __LINE__));
252
253 PMCDBG(MDP,INI,0, "intel-initialize cpuid=0x%x", cpu_id);
254
255 cputype = -1;
256
257 switch (cpu_id & 0xF00) {
258#if defined(__i386__)
259 case 0x500: /* Pentium family processors */
260 cputype = PMC_CPU_INTEL_P5;
261 break;
262 case 0x600: /* Pentium Pro, Celeron, Pentium II & III */
263 switch ((cpu_id & 0xF0) >> 4) { /* model number field */
264 case 0x1:
265 cputype = PMC_CPU_INTEL_P6;
266 break;
267 case 0x3: case 0x5:
268 cputype = PMC_CPU_INTEL_PII;
269 break;
270 case 0x6:
271 cputype = PMC_CPU_INTEL_CL;
272 break;
273 case 0x7: case 0x8: case 0xA: case 0xB:
274 cputype = PMC_CPU_INTEL_PIII;
275 break;
276 case 0x9: case 0xD:
277 cputype = PMC_CPU_INTEL_PM;
278 break;
279 }
280 break;
281#endif
282#if defined(__i386__) || defined(__amd64__)
283 case 0xF00: /* P4 */
284 model = ((cpu_id & 0xF0000) >> 12) | ((cpu_id & 0xF0) >> 4);
285 if (model >= 0 && model <= 6) /* known models */
286 cputype = PMC_CPU_INTEL_PIV;
287 break;
288 }
289#endif
290
291 if ((int) cputype == -1) {
292 printf("pmc: Unknown Intel CPU.\n");
293 return NULL;
294 }
295
296 pmc_mdep = malloc(sizeof(struct pmc_mdep),
297 M_PMC, M_WAITOK|M_ZERO);
298
299 pmc_mdep->pmd_cputype = cputype;
300 pmc_mdep->pmd_nclass = 2;
301 pmc_mdep->pmd_classes[0].pm_class = PMC_CLASS_TSC;
302 pmc_mdep->pmd_classes[0].pm_caps = PMC_CAP_READ;
303 pmc_mdep->pmd_classes[0].pm_width = 64;
304 pmc_mdep->pmd_nclasspmcs[0] = 1;
305
306 error = 0;
307
308 switch (cputype) {
309
310#if defined(__i386__) || defined(__amd64__)
311
312 /*
313 * Intel Pentium 4 Processors, and P4/EMT64 processors.
314 */
315
316 case PMC_CPU_INTEL_PIV:
317 error = pmc_initialize_p4(pmc_mdep);
318 break;
319#endif
320
321#if defined(__i386__)
322 /*
323 * P6 Family Processors
324 */
325
326 case PMC_CPU_INTEL_P6:
327 case PMC_CPU_INTEL_CL:
328 case PMC_CPU_INTEL_PII:
329 case PMC_CPU_INTEL_PIII:
330 case PMC_CPU_INTEL_PM:
331
332 error = pmc_initialize_p6(pmc_mdep);
333 break;
334
335 /*
336 * Intel Pentium PMCs.
337 */
338
339 case PMC_CPU_INTEL_P5:
340 error = pmc_initialize_p5(pmc_mdep);
341 break;
342#endif
343
344 default:
345 KASSERT(0,("[intel,%d] Unknown CPU type", __LINE__));
346 }
347
348 if (error) {
349 free(pmc_mdep, M_PMC);
350 pmc_mdep = NULL;
351 }
352
353 return pmc_mdep;
354}
355
356
357/*
358 * Machine dependent initialization for x86 class platforms.
359 */
360
361struct pmc_mdep *
362pmc_md_initialize()
363{
364 int i;
365 struct pmc_mdep *md;
366
367 /* determine the CPU kind */
368 md = NULL;
369 if (strcmp(cpu_vendor, "AuthenticAMD") == 0)
370 md = pmc_amd_initialize();
371 else if (strcmp(cpu_vendor, "GenuineIntel") == 0)
372 md = pmc_intel_initialize();
243/*
244 * Machine dependent initialization for x86 class platforms.
245 */
246
247struct pmc_mdep *
248pmc_md_initialize()
249{
250 int i;
251 struct pmc_mdep *md;
252
253 /* determine the CPU kind */
254 md = NULL;
255 if (strcmp(cpu_vendor, "AuthenticAMD") == 0)
256 md = pmc_amd_initialize();
257 else if (strcmp(cpu_vendor, "GenuineIntel") == 0)
258 md = pmc_intel_initialize();
259 else
260 KASSERT(0, ("[x86,%d] Unknown vendor", __LINE__));
373
374 /* disallow sampling if we do not have an LAPIC */
375 if (md != NULL && lapic == NULL)
376 for (i = 1; i < md->pmd_nclass; i++)
261
262 /* disallow sampling if we do not have an LAPIC */
263 if (md != NULL && lapic == NULL)
264 for (i = 1; i < md->pmd_nclass; i++)
377 md->pmd_classes[i].pm_caps &= ~PMC_CAP_INTERRUPT;
265 md->pmd_classdep[i].pcd_caps &= ~PMC_CAP_INTERRUPT;
378
266
379 return md;
267 return (md);
380}
268}
269
270void
271pmc_md_finalize(struct pmc_mdep *md)
272{
273 if (strcmp(cpu_vendor, "AuthenticAMD") == 0)
274 pmc_amd_finalize(md);
275 else if (strcmp(cpu_vendor, "GenuineIntel") == 0)
276 pmc_intel_finalize(md);
277 else
278 KASSERT(0, ("[x86,%d] Unknown vendor", __LINE__));
279}