sunpm.c (9681b4a1) sunpm.c (5cff7825)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

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310
311clock_t pm_min_scan = PM_MIN_SCAN;
312clock_t pm_id_ticks = 5; /* ticks to wait before scan during idle-down */
313
314static int pm_busop_set_power(dev_info_t *,
315 void *, pm_bus_power_op_t, void *, void *);
316static int pm_busop_match_request(dev_info_t *, void *);
317static int pm_all_to_normal_nexus(dev_info_t *, pm_canblock_t);
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

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310
311clock_t pm_min_scan = PM_MIN_SCAN;
312clock_t pm_id_ticks = 5; /* ticks to wait before scan during idle-down */
313
314static int pm_busop_set_power(dev_info_t *,
315 void *, pm_bus_power_op_t, void *, void *);
316static int pm_busop_match_request(dev_info_t *, void *);
317static int pm_all_to_normal_nexus(dev_info_t *, pm_canblock_t);
318static void e_pm_set_max_power(dev_info_t *, int, int);
319static int e_pm_get_max_power(dev_info_t *, int);
318
319/*
320 * Dependency Processing is done thru a seperate thread.
321 */
322kmutex_t pm_dep_thread_lock;
323kcondvar_t pm_dep_thread_cv;
324pm_dep_wk_t *pm_dep_thread_workq = NULL;
325pm_dep_wk_t *pm_dep_thread_tail = NULL;

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3572 pwrndx--;
3573 ASSERT(pwrndx >= 0);
3574 nxt_pwr = cp->pmc_comp.pmc_lvals[pwrndx];
3575 }
3576 return (nxt_pwr);
3577}
3578
3579/*
320
321/*
322 * Dependency Processing is done thru a seperate thread.
323 */
324kmutex_t pm_dep_thread_lock;
325kcondvar_t pm_dep_thread_cv;
326pm_dep_wk_t *pm_dep_thread_workq = NULL;
327pm_dep_wk_t *pm_dep_thread_tail = NULL;

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3574 pwrndx--;
3575 ASSERT(pwrndx >= 0);
3576 nxt_pwr = cp->pmc_comp.pmc_lvals[pwrndx];
3577 }
3578 return (nxt_pwr);
3579}
3580
3581/*
3582 * Update the maxpower (normal) power of a component. Note that the
3583 * component's power level is only changed if it's current power level
3584 * is higher than the new max power.
3585 */
3586int
3587pm_update_maxpower(dev_info_t *dip, int comp, int level)
3588{
3589 PMD_FUNC(pmf, "update_maxpower")
3590 int old;
3591 int result;
3592
3593 if (!e_pm_valid_info(dip, NULL) || !e_pm_valid_comp(dip, comp, NULL) ||
3594 !e_pm_valid_power(dip, comp, level)) {
3595 PMD(PMD_FAIL, ("%s: validation checks failed for %s@%s(%s#%d) "
3596 "comp=%d level=%d\n", pmf, PM_DEVICE(dip), comp, level))
3597 return (DDI_FAILURE);
3598 }
3599 old = e_pm_get_max_power(dip, comp);
3600 e_pm_set_max_power(dip, comp, level);
3601
3602 if (pm_set_power(dip, comp, level, PM_LEVEL_DOWNONLY,
3603 PM_CANBLOCK_BLOCK, 0, &result) != DDI_SUCCESS) {
3604 e_pm_set_max_power(dip, comp, old);
3605 PMD(PMD_FAIL, ("%s: %s@%s(%s#%d) pm_set_power failed\n", pmf,
3606 PM_DEVICE(dip)))
3607 return (DDI_FAILURE);
3608 }
3609 return (DDI_SUCCESS);
3610}
3611
3612/*
3580 * Bring all components of device to normal power
3581 */
3582int
3583pm_all_to_normal(dev_info_t *dip, pm_canblock_t canblock)
3584{
3585 PMD_FUNC(pmf, "all_to_normal")
3586 int *normal;
3587 int i, ncomps, result;

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3867 */
3868static void
3869e_pm_set_max_power(dev_info_t *dip, int component_number, int level)
3870{
3871 PM_CP(dip, component_number)->pmc_norm_pwr = level;
3872}
3873
3874/*
3613 * Bring all components of device to normal power
3614 */
3615int
3616pm_all_to_normal(dev_info_t *dip, pm_canblock_t canblock)
3617{
3618 PMD_FUNC(pmf, "all_to_normal")
3619 int *normal;
3620 int i, ncomps, result;

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3900 */
3901static void
3902e_pm_set_max_power(dev_info_t *dip, int component_number, int level)
3903{
3904 PM_CP(dip, component_number)->pmc_norm_pwr = level;
3905}
3906
3907/*
3908 * Get max (previously documented as "normal") power.
3909 */
3910static int
3911e_pm_get_max_power(dev_info_t *dip, int component_number)
3912{
3913 return (PM_CP(dip, component_number)->pmc_norm_pwr);
3914}
3915
3916/*
3875 * Internal routine for destroying components
3876 * It is called even when there might not be any, so it must be forgiving.
3877 */
3878static void
3879e_pm_destroy_components(dev_info_t *dip)
3880{
3881 int i;
3882 struct pm_component *cp;

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8564 /*
8565 * Since we don't know what the actual power level is,
8566 * we place a power hold on the parent no matter what
8567 * component and level is changing.
8568 */
8569 pm_hold_power(pdip);
8570 }
8571 PM_LOCK_POWER(dip, &circ);
3917 * Internal routine for destroying components
3918 * It is called even when there might not be any, so it must be forgiving.
3919 */
3920static void
3921e_pm_destroy_components(dev_info_t *dip)
3922{
3923 int i;
3924 struct pm_component *cp;

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8606 /*
8607 * Since we don't know what the actual power level is,
8608 * we place a power hold on the parent no matter what
8609 * component and level is changing.
8610 */
8611 pm_hold_power(pdip);
8612 }
8613 PM_LOCK_POWER(dip, &circ);
8614 /*
8615 * It's possible that a call was made to pm_update_maxpower()
8616 * on another thread before we took the lock above. So, we need to
8617 * make sure that this request isn't processed after the
8618 * change of power executed on behalf of pm_update_maxpower().
8619 */
8620 if (nlevel > pm_get_normal_power(dip, comp)) {
8621 PMD(PMD_SET, ("%s: requested level is higher than normal.\n",
8622 pmf))
8623 ret = DDI_FAILURE;
8624 *iresp = DDI_FAILURE;
8625 goto post_notify;
8626 }
8572 clevel = PM_CURPOWER(dip, comp);
8573 PMD(PMD_SET, ("%s: %s@%s(%s#%d), cmp=%d, olvl=%d, nlvl=%d, clvl=%d, "
8574 "dir=%s\n", pmf, PM_DEVICE(dip), comp, bpc->bpc_olevel, nlevel,
8575 clevel, dir))
8576 switch (direction) {
8577 case PM_LEVEL_UPONLY:
8578 /* Powering up */
8579 if (clevel >= nlevel) {

--- 531 unchanged lines hidden --- 		8627 clevel = PM_CURPOWER(dip, comp);
8628 PMD(PMD_SET, ("%s: %s@%s(%s#%d), cmp=%d, olvl=%d, nlvl=%d, clvl=%d, "
8629 "dir=%s\n", pmf, PM_DEVICE(dip), comp, bpc->bpc_olevel, nlevel,
8630 clevel, dir))
8631 switch (direction) {
8632 case PM_LEVEL_UPONLY:
8633 /* Powering up */
8634 if (clevel >= nlevel) {

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