powerpc/ps3: Interrupt code cleanup
General code cleanup for PS3 interrupt.c: o Fill out comments for structure members. o Move variables ipi_debug_brk_mask and lock from struct ps3_bmp to struct ps3_private. o Fix pr_debug build errors when DEBUG is defined. o Convert bit operation to set_bit(). o Convert DBG macro from pr_debug to pr_devel o Add new macro FAIL to replace pr_debug calls Signed-off-by: Geoff Levand <geoff@infradead.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
parent
faa8bf8878
commit
32b9074bf8
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@ -31,18 +31,18 @@
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#if defined(DEBUG)
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#define DBG udbg_printf
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#define FAIL udbg_printf
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#else
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#define DBG pr_debug
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#define DBG pr_devel
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#define FAIL pr_debug
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#endif
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/**
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* struct ps3_bmp - a per cpu irq status and mask bitmap structure
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* @status: 256 bit status bitmap indexed by plug
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* @unused_1:
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* @unused_1: Alignment
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* @mask: 256 bit mask bitmap indexed by plug
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* @unused_2:
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* @lock:
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* @ipi_debug_brk_mask:
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* @unused_2: Alignment
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*
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* The HV maintains per SMT thread mappings of HV outlet to HV plug on
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* behalf of the guest. These mappings are implemented as 256 bit guest
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@ -73,21 +73,24 @@ struct ps3_bmp {
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unsigned long mask;
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u64 unused_2[3];
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};
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u64 ipi_debug_brk_mask;
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spinlock_t lock;
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};
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/**
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* struct ps3_private - a per cpu data structure
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* @bmp: ps3_bmp structure
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* @bmp_lock: Syncronize access to bmp.
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* @ipi_debug_brk_mask: Mask for debug break IPIs
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* @ppe_id: HV logical_ppe_id
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* @thread_id: HV thread_id
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* @ipi_mask: Mask of IPI virqs
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*/
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struct ps3_private {
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struct ps3_bmp bmp __attribute__ ((aligned (PS3_BMP_MINALIGN)));
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spinlock_t bmp_lock;
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u64 ppe_id;
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u64 thread_id;
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unsigned long ipi_debug_brk_mask;
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unsigned long ipi_mask;
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};
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@ -105,7 +108,7 @@ static void ps3_chip_mask(struct irq_data *d)
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struct ps3_private *pd = irq_data_get_irq_chip_data(d);
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unsigned long flags;
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pr_debug("%s:%d: thread_id %llu, virq %d\n", __func__, __LINE__,
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DBG("%s:%d: thread_id %llu, virq %d\n", __func__, __LINE__,
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pd->thread_id, d->irq);
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local_irq_save(flags);
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@ -126,7 +129,7 @@ static void ps3_chip_unmask(struct irq_data *d)
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struct ps3_private *pd = irq_data_get_irq_chip_data(d);
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unsigned long flags;
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pr_debug("%s:%d: thread_id %llu, virq %d\n", __func__, __LINE__,
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DBG("%s:%d: thread_id %llu, virq %d\n", __func__, __LINE__,
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pd->thread_id, d->irq);
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local_irq_save(flags);
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@ -190,19 +193,19 @@ static int ps3_virq_setup(enum ps3_cpu_binding cpu, unsigned long outlet,
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*virq = irq_create_mapping(NULL, outlet);
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if (*virq == NO_IRQ) {
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pr_debug("%s:%d: irq_create_mapping failed: outlet %lu\n",
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FAIL("%s:%d: irq_create_mapping failed: outlet %lu\n",
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__func__, __LINE__, outlet);
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result = -ENOMEM;
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goto fail_create;
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}
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pr_debug("%s:%d: outlet %lu => cpu %u, virq %u\n", __func__, __LINE__,
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DBG("%s:%d: outlet %lu => cpu %u, virq %u\n", __func__, __LINE__,
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outlet, cpu, *virq);
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result = irq_set_chip_data(*virq, pd);
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if (result) {
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pr_debug("%s:%d: irq_set_chip_data failed\n",
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FAIL("%s:%d: irq_set_chip_data failed\n",
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__func__, __LINE__);
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goto fail_set;
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}
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@ -228,13 +231,13 @@ static int ps3_virq_destroy(unsigned int virq)
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{
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const struct ps3_private *pd = irq_get_chip_data(virq);
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pr_debug("%s:%d: ppe_id %llu, thread_id %llu, virq %u\n", __func__,
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DBG("%s:%d: ppe_id %llu, thread_id %llu, virq %u\n", __func__,
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__LINE__, pd->ppe_id, pd->thread_id, virq);
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irq_set_chip_data(virq, NULL);
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irq_dispose_mapping(virq);
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pr_debug("%s:%d <-\n", __func__, __LINE__);
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DBG("%s:%d <-\n", __func__, __LINE__);
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return 0;
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}
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@ -257,7 +260,7 @@ int ps3_irq_plug_setup(enum ps3_cpu_binding cpu, unsigned long outlet,
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result = ps3_virq_setup(cpu, outlet, virq);
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if (result) {
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pr_debug("%s:%d: ps3_virq_setup failed\n", __func__, __LINE__);
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FAIL("%s:%d: ps3_virq_setup failed\n", __func__, __LINE__);
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goto fail_setup;
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}
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@ -269,7 +272,7 @@ int ps3_irq_plug_setup(enum ps3_cpu_binding cpu, unsigned long outlet,
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outlet, 0);
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if (result) {
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pr_info("%s:%d: lv1_connect_irq_plug_ext failed: %s\n",
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FAIL("%s:%d: lv1_connect_irq_plug_ext failed: %s\n",
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__func__, __LINE__, ps3_result(result));
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result = -EPERM;
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goto fail_connect;
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@ -298,7 +301,7 @@ int ps3_irq_plug_destroy(unsigned int virq)
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int result;
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const struct ps3_private *pd = irq_get_chip_data(virq);
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pr_debug("%s:%d: ppe_id %llu, thread_id %llu, virq %u\n", __func__,
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DBG("%s:%d: ppe_id %llu, thread_id %llu, virq %u\n", __func__,
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__LINE__, pd->ppe_id, pd->thread_id, virq);
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ps3_chip_mask(irq_get_irq_data(virq));
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@ -306,7 +309,7 @@ int ps3_irq_plug_destroy(unsigned int virq)
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result = lv1_disconnect_irq_plug_ext(pd->ppe_id, pd->thread_id, virq);
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if (result)
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pr_info("%s:%d: lv1_disconnect_irq_plug_ext failed: %s\n",
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FAIL("%s:%d: lv1_disconnect_irq_plug_ext failed: %s\n",
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__func__, __LINE__, ps3_result(result));
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ps3_virq_destroy(virq);
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@ -334,7 +337,7 @@ int ps3_event_receive_port_setup(enum ps3_cpu_binding cpu, unsigned int *virq)
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result = lv1_construct_event_receive_port(&outlet);
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if (result) {
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pr_debug("%s:%d: lv1_construct_event_receive_port failed: %s\n",
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FAIL("%s:%d: lv1_construct_event_receive_port failed: %s\n",
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__func__, __LINE__, ps3_result(result));
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*virq = NO_IRQ;
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return result;
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@ -360,14 +363,14 @@ int ps3_event_receive_port_destroy(unsigned int virq)
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{
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int result;
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pr_debug(" -> %s:%d virq %u\n", __func__, __LINE__, virq);
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DBG(" -> %s:%d virq %u\n", __func__, __LINE__, virq);
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ps3_chip_mask(irq_get_irq_data(virq));
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result = lv1_destruct_event_receive_port(virq_to_hw(virq));
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if (result)
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pr_debug("%s:%d: lv1_destruct_event_receive_port failed: %s\n",
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FAIL("%s:%d: lv1_destruct_event_receive_port failed: %s\n",
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__func__, __LINE__, ps3_result(result));
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/*
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@ -375,7 +378,7 @@ int ps3_event_receive_port_destroy(unsigned int virq)
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* calls from interrupt context (smp_call_function) when kexecing.
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*/
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pr_debug(" <- %s:%d\n", __func__, __LINE__);
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DBG(" <- %s:%d\n", __func__, __LINE__);
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return result;
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}
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@ -411,7 +414,7 @@ int ps3_sb_event_receive_port_setup(struct ps3_system_bus_device *dev,
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dev->dev_id, virq_to_hw(*virq), dev->interrupt_id);
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if (result) {
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pr_debug("%s:%d: lv1_connect_interrupt_event_receive_port"
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FAIL("%s:%d: lv1_connect_interrupt_event_receive_port"
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" failed: %s\n", __func__, __LINE__,
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ps3_result(result));
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ps3_event_receive_port_destroy(*virq);
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return result;
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}
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pr_debug("%s:%d: interrupt_id %u, virq %u\n", __func__, __LINE__,
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DBG("%s:%d: interrupt_id %u, virq %u\n", __func__, __LINE__,
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dev->interrupt_id, *virq);
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return 0;
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@ -433,14 +436,14 @@ int ps3_sb_event_receive_port_destroy(struct ps3_system_bus_device *dev,
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int result;
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pr_debug(" -> %s:%d: interrupt_id %u, virq %u\n", __func__, __LINE__,
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DBG(" -> %s:%d: interrupt_id %u, virq %u\n", __func__, __LINE__,
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dev->interrupt_id, virq);
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result = lv1_disconnect_interrupt_event_receive_port(dev->bus_id,
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dev->dev_id, virq_to_hw(virq), dev->interrupt_id);
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if (result)
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pr_debug("%s:%d: lv1_disconnect_interrupt_event_receive_port"
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FAIL("%s:%d: lv1_disconnect_interrupt_event_receive_port"
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" failed: %s\n", __func__, __LINE__,
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ps3_result(result));
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@ -455,7 +458,7 @@ int ps3_sb_event_receive_port_destroy(struct ps3_system_bus_device *dev,
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result = ps3_virq_destroy(virq);
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BUG_ON(result);
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pr_debug(" <- %s:%d\n", __func__, __LINE__);
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DBG(" <- %s:%d\n", __func__, __LINE__);
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return result;
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}
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EXPORT_SYMBOL(ps3_sb_event_receive_port_destroy);
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@ -480,7 +483,7 @@ int ps3_io_irq_setup(enum ps3_cpu_binding cpu, unsigned int interrupt_id,
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result = lv1_construct_io_irq_outlet(interrupt_id, &outlet);
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if (result) {
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pr_debug("%s:%d: lv1_construct_io_irq_outlet failed: %s\n",
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FAIL("%s:%d: lv1_construct_io_irq_outlet failed: %s\n",
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__func__, __LINE__, ps3_result(result));
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return result;
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}
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@ -510,7 +513,7 @@ int ps3_io_irq_destroy(unsigned int virq)
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result = lv1_destruct_io_irq_outlet(outlet);
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if (result)
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pr_debug("%s:%d: lv1_destruct_io_irq_outlet failed: %s\n",
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FAIL("%s:%d: lv1_destruct_io_irq_outlet failed: %s\n",
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__func__, __LINE__, ps3_result(result));
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return result;
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@ -542,7 +545,7 @@ int ps3_vuart_irq_setup(enum ps3_cpu_binding cpu, void* virt_addr_bmp,
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result = lv1_configure_virtual_uart_irq(lpar_addr, &outlet);
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if (result) {
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pr_debug("%s:%d: lv1_configure_virtual_uart_irq failed: %s\n",
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FAIL("%s:%d: lv1_configure_virtual_uart_irq failed: %s\n",
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__func__, __LINE__, ps3_result(result));
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return result;
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}
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@ -562,7 +565,7 @@ int ps3_vuart_irq_destroy(unsigned int virq)
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result = lv1_deconfigure_virtual_uart_irq();
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if (result) {
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pr_debug("%s:%d: lv1_configure_virtual_uart_irq failed: %s\n",
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FAIL("%s:%d: lv1_configure_virtual_uart_irq failed: %s\n",
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__func__, __LINE__, ps3_result(result));
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return result;
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}
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@ -595,7 +598,7 @@ int ps3_spe_irq_setup(enum ps3_cpu_binding cpu, unsigned long spe_id,
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result = lv1_get_spe_irq_outlet(spe_id, class, &outlet);
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if (result) {
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pr_debug("%s:%d: lv1_get_spe_irq_outlet failed: %s\n",
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FAIL("%s:%d: lv1_get_spe_irq_outlet failed: %s\n",
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__func__, __LINE__, ps3_result(result));
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return result;
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}
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@ -626,7 +629,7 @@ int ps3_spe_irq_destroy(unsigned int virq)
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static void _dump_64_bmp(const char *header, const u64 *p, unsigned cpu,
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const char* func, int line)
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{
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pr_debug("%s:%d: %s %u {%04lx_%04lx_%04lx_%04lx}\n",
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pr_debug("%s:%d: %s %u {%04llx_%04llx_%04llx_%04llx}\n",
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func, line, header, cpu,
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*p >> 48, (*p >> 32) & 0xffff, (*p >> 16) & 0xffff,
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*p & 0xffff);
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@ -635,7 +638,7 @@ static void _dump_64_bmp(const char *header, const u64 *p, unsigned cpu,
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static void __maybe_unused _dump_256_bmp(const char *header,
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const u64 *p, unsigned cpu, const char* func, int line)
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{
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pr_debug("%s:%d: %s %u {%016lx:%016lx:%016lx:%016lx}\n",
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pr_debug("%s:%d: %s %u {%016llx:%016llx:%016llx:%016llx}\n",
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func, line, header, cpu, p[0], p[1], p[2], p[3]);
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}
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@ -644,10 +647,10 @@ static void _dump_bmp(struct ps3_private* pd, const char* func, int line)
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{
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unsigned long flags;
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spin_lock_irqsave(&pd->bmp.lock, flags);
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spin_lock_irqsave(&pd->bmp_lock, flags);
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_dump_64_bmp("stat", &pd->bmp.status, pd->thread_id, func, line);
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_dump_64_bmp("mask", &pd->bmp.mask, pd->thread_id, func, line);
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spin_unlock_irqrestore(&pd->bmp.lock, flags);
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_dump_64_bmp("mask", (u64*)&pd->bmp.mask, pd->thread_id, func, line);
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spin_unlock_irqrestore(&pd->bmp_lock, flags);
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}
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#define dump_mask(_x) _dump_mask(_x, __func__, __LINE__)
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@ -656,9 +659,9 @@ static void __maybe_unused _dump_mask(struct ps3_private *pd,
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{
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unsigned long flags;
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spin_lock_irqsave(&pd->bmp.lock, flags);
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_dump_64_bmp("mask", &pd->bmp.mask, pd->thread_id, func, line);
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spin_unlock_irqrestore(&pd->bmp.lock, flags);
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spin_lock_irqsave(&pd->bmp_lock, flags);
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_dump_64_bmp("mask", (u64*)&pd->bmp.mask, pd->thread_id, func, line);
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spin_unlock_irqrestore(&pd->bmp_lock, flags);
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}
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#else
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static void dump_bmp(struct ps3_private* pd) {};
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@ -667,7 +670,7 @@ static void dump_bmp(struct ps3_private* pd) {};
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static int ps3_host_map(struct irq_host *h, unsigned int virq,
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irq_hw_number_t hwirq)
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{
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pr_debug("%s:%d: hwirq %lu, virq %u\n", __func__, __LINE__, hwirq,
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DBG("%s:%d: hwirq %lu, virq %u\n", __func__, __LINE__, hwirq,
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virq);
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irq_set_chip_and_handler(virq, &ps3_irq_chip, handle_fasteoi_irq);
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@ -690,10 +693,10 @@ void __init ps3_register_ipi_debug_brk(unsigned int cpu, unsigned int virq)
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{
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struct ps3_private *pd = &per_cpu(ps3_private, cpu);
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pd->bmp.ipi_debug_brk_mask = 0x8000000000000000UL >> virq;
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set_bit(63 - virq, &pd->ipi_debug_brk_mask);
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pr_debug("%s:%d: cpu %u, virq %u, mask %llxh\n", __func__, __LINE__,
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cpu, virq, pd->bmp.ipi_debug_brk_mask);
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DBG("%s:%d: cpu %u, virq %u, mask %lxh\n", __func__, __LINE__,
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cpu, virq, pd->ipi_debug_brk_mask);
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}
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void __init ps3_register_ipi_irq(unsigned int cpu, unsigned int virq)
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@ -714,14 +717,14 @@ static unsigned int ps3_get_irq(void)
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/* check for ipi break first to stop this cpu ASAP */
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if (x & pd->bmp.ipi_debug_brk_mask)
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x &= pd->bmp.ipi_debug_brk_mask;
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if (x & pd->ipi_debug_brk_mask)
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x &= pd->ipi_debug_brk_mask;
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asm volatile("cntlzd %0,%1" : "=r" (plug) : "r" (x));
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plug &= 0x3f;
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if (unlikely(plug == NO_IRQ)) {
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pr_debug("%s:%d: no plug found: thread_id %llu\n", __func__,
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DBG("%s:%d: no plug found: thread_id %llu\n", __func__,
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__LINE__, pd->thread_id);
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dump_bmp(&per_cpu(ps3_private, 0));
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dump_bmp(&per_cpu(ps3_private, 1));
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@ -760,9 +763,9 @@ void __init ps3_init_IRQ(void)
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lv1_get_logical_ppe_id(&pd->ppe_id);
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pd->thread_id = get_hard_smp_processor_id(cpu);
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spin_lock_init(&pd->bmp.lock);
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spin_lock_init(&pd->bmp_lock);
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pr_debug("%s:%d: ppe_id %llu, thread_id %llu, bmp %lxh\n",
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DBG("%s:%d: ppe_id %llu, thread_id %llu, bmp %lxh\n",
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__func__, __LINE__, pd->ppe_id, pd->thread_id,
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ps3_mm_phys_to_lpar(__pa(&pd->bmp)));
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@ -770,7 +773,7 @@ void __init ps3_init_IRQ(void)
|
|||
pd->thread_id, ps3_mm_phys_to_lpar(__pa(&pd->bmp)));
|
||||
|
||||
if (result)
|
||||
pr_debug("%s:%d: lv1_configure_irq_state_bitmap failed:"
|
||||
FAIL("%s:%d: lv1_configure_irq_state_bitmap failed:"
|
||||
" %s\n", __func__, __LINE__,
|
||||
ps3_result(result));
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue