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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ia64/kernel/perfmon_mckinley.h
downloadconfigs-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/ia64/kernel/perfmon_mckinley.h')
-rw-r--r--arch/ia64/kernel/perfmon_mckinley.h187
1 files changed, 187 insertions, 0 deletions
diff --git a/arch/ia64/kernel/perfmon_mckinley.h b/arch/ia64/kernel/perfmon_mckinley.h
new file mode 100644
index 00000000000..9becccda289
--- /dev/null
+++ b/arch/ia64/kernel/perfmon_mckinley.h
@@ -0,0 +1,187 @@
+/*
+ * This file contains the McKinley PMU register description tables
+ * and pmc checker used by perfmon.c.
+ *
+ * Copyright (C) 2002-2003 Hewlett Packard Co
+ * Stephane Eranian <eranian@hpl.hp.com>
+ */
+static int pfm_mck_pmc_check(struct task_struct *task, pfm_context_t *ctx, unsigned int cnum, unsigned long *val, struct pt_regs *regs);
+
+static pfm_reg_desc_t pfm_mck_pmc_desc[PMU_MAX_PMCS]={
+/* pmc0 */ { PFM_REG_CONTROL , 0, 0x1UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc1 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc2 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc3 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc4 */ { PFM_REG_COUNTING, 6, 0x0000000000800000UL, 0xfffff7fUL, NULL, pfm_mck_pmc_check, {RDEP(4),0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc5 */ { PFM_REG_COUNTING, 6, 0x0UL, 0xfffff7fUL, NULL, pfm_mck_pmc_check, {RDEP(5),0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc6 */ { PFM_REG_COUNTING, 6, 0x0UL, 0xfffff7fUL, NULL, pfm_mck_pmc_check, {RDEP(6),0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc7 */ { PFM_REG_COUNTING, 6, 0x0UL, 0xfffff7fUL, NULL, pfm_mck_pmc_check, {RDEP(7),0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc8 */ { PFM_REG_CONFIG , 0, 0xffffffff3fffffffUL, 0xffffffff3ffffffbUL, NULL, pfm_mck_pmc_check, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc9 */ { PFM_REG_CONFIG , 0, 0xffffffff3ffffffcUL, 0xffffffff3ffffffbUL, NULL, pfm_mck_pmc_check, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc10 */ { PFM_REG_MONITOR , 4, 0x0UL, 0xffffUL, NULL, pfm_mck_pmc_check, {RDEP(0)|RDEP(1),0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc11 */ { PFM_REG_MONITOR , 6, 0x0UL, 0x30f01cf, NULL, pfm_mck_pmc_check, {RDEP(2)|RDEP(3)|RDEP(17),0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc12 */ { PFM_REG_MONITOR , 6, 0x0UL, 0xffffUL, NULL, pfm_mck_pmc_check, {RDEP(8)|RDEP(9)|RDEP(10)|RDEP(11)|RDEP(12)|RDEP(13)|RDEP(14)|RDEP(15)|RDEP(16),0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc13 */ { PFM_REG_CONFIG , 0, 0x00002078fefefefeUL, 0x1e00018181818UL, NULL, pfm_mck_pmc_check, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc14 */ { PFM_REG_CONFIG , 0, 0x0db60db60db60db6UL, 0x2492UL, NULL, pfm_mck_pmc_check, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc15 */ { PFM_REG_CONFIG , 0, 0x00000000fffffff0UL, 0xfUL, NULL, pfm_mck_pmc_check, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+ { PFM_REG_END , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */
+};
+
+static pfm_reg_desc_t pfm_mck_pmd_desc[PMU_MAX_PMDS]={
+/* pmd0 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(1),0UL, 0UL, 0UL}, {RDEP(10),0UL, 0UL, 0UL}},
+/* pmd1 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(0),0UL, 0UL, 0UL}, {RDEP(10),0UL, 0UL, 0UL}},
+/* pmd2 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(3)|RDEP(17),0UL, 0UL, 0UL}, {RDEP(11),0UL, 0UL, 0UL}},
+/* pmd3 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(2)|RDEP(17),0UL, 0UL, 0UL}, {RDEP(11),0UL, 0UL, 0UL}},
+/* pmd4 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(4),0UL, 0UL, 0UL}},
+/* pmd5 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(5),0UL, 0UL, 0UL}},
+/* pmd6 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(6),0UL, 0UL, 0UL}},
+/* pmd7 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(7),0UL, 0UL, 0UL}},
+/* pmd8 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(9)|RDEP(10)|RDEP(11)|RDEP(12)|RDEP(13)|RDEP(14)|RDEP(15)|RDEP(16),0UL, 0UL, 0UL}, {RDEP(12),0UL, 0UL, 0UL}},
+/* pmd9 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(8)|RDEP(10)|RDEP(11)|RDEP(12)|RDEP(13)|RDEP(14)|RDEP(15)|RDEP(16),0UL, 0UL, 0UL}, {RDEP(12),0UL, 0UL, 0UL}},
+/* pmd10 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(8)|RDEP(9)|RDEP(11)|RDEP(12)|RDEP(13)|RDEP(14)|RDEP(15)|RDEP(16),0UL, 0UL, 0UL}, {RDEP(12),0UL, 0UL, 0UL}},
+/* pmd11 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(8)|RDEP(9)|RDEP(10)|RDEP(12)|RDEP(13)|RDEP(14)|RDEP(15)|RDEP(16),0UL, 0UL, 0UL}, {RDEP(12),0UL, 0UL, 0UL}},
+/* pmd12 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(8)|RDEP(9)|RDEP(10)|RDEP(11)|RDEP(13)|RDEP(14)|RDEP(15)|RDEP(16),0UL, 0UL, 0UL}, {RDEP(12),0UL, 0UL, 0UL}},
+/* pmd13 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(8)|RDEP(9)|RDEP(10)|RDEP(11)|RDEP(12)|RDEP(14)|RDEP(15)|RDEP(16),0UL, 0UL, 0UL}, {RDEP(12),0UL, 0UL, 0UL}},
+/* pmd14 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(8)|RDEP(9)|RDEP(10)|RDEP(11)|RDEP(12)|RDEP(13)|RDEP(15)|RDEP(16),0UL, 0UL, 0UL}, {RDEP(12),0UL, 0UL, 0UL}},
+/* pmd15 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(8)|RDEP(9)|RDEP(10)|RDEP(11)|RDEP(12)|RDEP(13)|RDEP(14)|RDEP(16),0UL, 0UL, 0UL}, {RDEP(12),0UL, 0UL, 0UL}},
+/* pmd16 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(8)|RDEP(9)|RDEP(10)|RDEP(11)|RDEP(12)|RDEP(13)|RDEP(14)|RDEP(15),0UL, 0UL, 0UL}, {RDEP(12),0UL, 0UL, 0UL}},
+/* pmd17 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(2)|RDEP(3),0UL, 0UL, 0UL}, {RDEP(11),0UL, 0UL, 0UL}},
+ { PFM_REG_END , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */
+};
+
+/*
+ * PMC reserved fields must have their power-up values preserved
+ */
+static int
+pfm_mck_reserved(unsigned int cnum, unsigned long *val, struct pt_regs *regs)
+{
+ unsigned long tmp1, tmp2, ival = *val;
+
+ /* remove reserved areas from user value */
+ tmp1 = ival & PMC_RSVD_MASK(cnum);
+
+ /* get reserved fields values */
+ tmp2 = PMC_DFL_VAL(cnum) & ~PMC_RSVD_MASK(cnum);
+
+ *val = tmp1 | tmp2;
+
+ DPRINT(("pmc[%d]=0x%lx, mask=0x%lx, reset=0x%lx, val=0x%lx\n",
+ cnum, ival, PMC_RSVD_MASK(cnum), PMC_DFL_VAL(cnum), *val));
+ return 0;
+}
+
+/*
+ * task can be NULL if the context is unloaded
+ */
+static int
+pfm_mck_pmc_check(struct task_struct *task, pfm_context_t *ctx, unsigned int cnum, unsigned long *val, struct pt_regs *regs)
+{
+ int ret = 0, check_case1 = 0;
+ unsigned long val8 = 0, val14 = 0, val13 = 0;
+ int is_loaded;
+
+ /* first preserve the reserved fields */
+ pfm_mck_reserved(cnum, val, regs);
+
+ /* sanitfy check */
+ if (ctx == NULL) return -EINVAL;
+
+ is_loaded = ctx->ctx_state == PFM_CTX_LOADED || ctx->ctx_state == PFM_CTX_MASKED;
+
+ /*
+ * we must clear the debug registers if pmc13 has a value which enable
+ * memory pipeline event constraints. In this case we need to clear the
+ * the debug registers if they have not yet been accessed. This is required
+ * to avoid picking stale state.
+ * PMC13 is "active" if:
+ * one of the pmc13.cfg_dbrpXX field is different from 0x3
+ * AND
+ * at the corresponding pmc13.ena_dbrpXX is set.
+ */
+ DPRINT(("cnum=%u val=0x%lx, using_dbreg=%d loaded=%d\n", cnum, *val, ctx->ctx_fl_using_dbreg, is_loaded));
+
+ if (cnum == 13 && is_loaded
+ && (*val & 0x1e00000000000UL) && (*val & 0x18181818UL) != 0x18181818UL && ctx->ctx_fl_using_dbreg == 0) {
+
+ DPRINT(("pmc[%d]=0x%lx has active pmc13 settings, clearing dbr\n", cnum, *val));
+
+ /* don't mix debug with perfmon */
+ if (task && (task->thread.flags & IA64_THREAD_DBG_VALID) != 0) return -EINVAL;
+
+ /*
+ * a count of 0 will mark the debug registers as in use and also
+ * ensure that they are properly cleared.
+ */
+ ret = pfm_write_ibr_dbr(PFM_DATA_RR, ctx, NULL, 0, regs);
+ if (ret) return ret;
+ }
+ /*
+ * we must clear the (instruction) debug registers if any pmc14.ibrpX bit is enabled
+ * before they are (fl_using_dbreg==0) to avoid picking up stale information.
+ */
+ if (cnum == 14 && is_loaded && ((*val & 0x2222UL) != 0x2222UL) && ctx->ctx_fl_using_dbreg == 0) {
+
+ DPRINT(("pmc[%d]=0x%lx has active pmc14 settings, clearing ibr\n", cnum, *val));
+
+ /* don't mix debug with perfmon */
+ if (task && (task->thread.flags & IA64_THREAD_DBG_VALID) != 0) return -EINVAL;
+
+ /*
+ * a count of 0 will mark the debug registers as in use and also
+ * ensure that they are properly cleared.
+ */
+ ret = pfm_write_ibr_dbr(PFM_CODE_RR, ctx, NULL, 0, regs);
+ if (ret) return ret;
+
+ }
+
+ switch(cnum) {
+ case 4: *val |= 1UL << 23; /* force power enable bit */
+ break;
+ case 8: val8 = *val;
+ val13 = ctx->ctx_pmcs[13];
+ val14 = ctx->ctx_pmcs[14];
+ check_case1 = 1;
+ break;
+ case 13: val8 = ctx->ctx_pmcs[8];
+ val13 = *val;
+ val14 = ctx->ctx_pmcs[14];
+ check_case1 = 1;
+ break;
+ case 14: val8 = ctx->ctx_pmcs[8];
+ val13 = ctx->ctx_pmcs[13];
+ val14 = *val;
+ check_case1 = 1;
+ break;
+ }
+ /* check illegal configuration which can produce inconsistencies in tagging
+ * i-side events in L1D and L2 caches
+ */
+ if (check_case1) {
+ ret = ((val13 >> 45) & 0xf) == 0
+ && ((val8 & 0x1) == 0)
+ && ((((val14>>1) & 0x3) == 0x2 || ((val14>>1) & 0x3) == 0x0)
+ ||(((val14>>4) & 0x3) == 0x2 || ((val14>>4) & 0x3) == 0x0));
+
+ if (ret) DPRINT((KERN_DEBUG "perfmon: failure check_case1\n"));
+ }
+
+ return ret ? -EINVAL : 0;
+}
+
+/*
+ * impl_pmcs, impl_pmds are computed at runtime to minimize errors!
+ */
+static pmu_config_t pmu_conf_mck={
+ .pmu_name = "Itanium 2",
+ .pmu_family = 0x1f,
+ .flags = PFM_PMU_IRQ_RESEND,
+ .ovfl_val = (1UL << 47) - 1,
+ .pmd_desc = pfm_mck_pmd_desc,
+ .pmc_desc = pfm_mck_pmc_desc,
+ .num_ibrs = 8,
+ .num_dbrs = 8,
+ .use_rr_dbregs = 1 /* debug register are use for range retrictions */
+};
+
+