static irqreturn_t z180_irq_handler(struct kgsl_device *device)
{
irqreturn_t result = IRQ_NONE;
unsigned int status;
struct z180_device *z180_dev = Z180_DEVICE(device);
z180_regread(device, ADDR_VGC_IRQSTATUS >> 2, &status);
trace_kgsl_z180_irq_status(device, status);
if (status & GSL_VGC_INT_MASK) {
z180_regwrite(device,
ADDR_VGC_IRQSTATUS >> 2, status & GSL_VGC_INT_MASK);
result = IRQ_HANDLED;
if (status & REG_VGC_IRQSTATUS__FIFO_MASK)
KGSL_DRV_ERR(device, "z180 fifo interrupt\n");
if (status & REG_VGC_IRQSTATUS__MH_MASK)
kgsl_mh_intrcallback(device);
if (status & REG_VGC_IRQSTATUS__G2D_MASK) {
int count;
z180_regread(device,
ADDR_VGC_IRQ_ACTIVE_CNT >> 2,
&count);
count >>= 8;
count &= 255;
z180_dev->timestamp += count;
queue_work(device->work_queue, &device->ts_expired_ws);
wake_up_interruptible(&device->wait_queue);
}
static void z180_dump_ringbuffer(struct kgsl_device *device)
{
unsigned int rb_size;
unsigned int *rb_hostptr;
unsigned int rb_words;
unsigned int rb_gpuaddr;
struct z180_device *z180_dev = Z180_DEVICE(device);
unsigned int i;
char linebuf[CHARS_PER_LINE];
KGSL_LOG_DUMP(device, "Z180 ringbuffer dump\n");
rb_hostptr = (unsigned int *) z180_dev->ringbuffer.cmdbufdesc.hostptr;
rb_size = Z180_RB_SIZE;
rb_gpuaddr = z180_dev->ringbuffer.cmdbufdesc.gpuaddr;
rb_words = rb_size/sizeof(unsigned int);
KGSL_LOG_DUMP(device, "ringbuffer size: %u\n", rb_size);
KGSL_LOG_DUMP(device, "rb_words: %d\n", rb_words);
for (i = 0; i < rb_words; i += WORDS_PER_LINE) {
hex_dump_to_buffer(rb_hostptr+i,
rb_size - i*sizeof(unsigned int),
WORDS_PER_LINE*sizeof(unsigned int),
sizeof(unsigned int), linebuf,
sizeof(linebuf), false);
KGSL_LOG_DUMP(device, "RB: %04X: %s\n",
rb_gpuaddr + i*sizeof(unsigned int), linebuf);
}
}
int z180_dump(struct kgsl_device *device, int manual)
{
struct z180_device *z180_dev = Z180_DEVICE(device);
mb();
KGSL_LOG_DUMP(device, "Retired Timestamp: %d\n", z180_dev->timestamp);
KGSL_LOG_DUMP(device,
"Current Timestamp: %d\n", z180_dev->current_timestamp);
z180_dump_ringbuffer(device);
z180_dump_regs(device);
if (device->pm_ib_enabled)
z180_dump_ib(device);
if (!manual)
BUG_ON(1);
return 0;
}
/**
* z180_dump - Dumps the Z180 ringbuffer and registers (and IBs if asked for)
* for postmortem
* analysis.
* @device: kgsl_device pointer to the Z180 core
*/
int z180_dump(struct kgsl_device *device, int manual)
{
struct z180_device *z180_dev = Z180_DEVICE(device);
mb();
KGSL_LOG_DUMP(device, "Retired Timestamp: %d\n", z180_dev->timestamp);
KGSL_LOG_DUMP(device,
"Current Timestamp: %d\n", z180_dev->current_timestamp);
/* Dump ringbuffer */
z180_dump_ringbuffer(device);
/* Dump registers */
z180_dump_regs(device);
/* Dump IBs, if asked for */
if (device->pm_ib_enabled)
z180_dump_ib(device);
/* Get the stack trace if the dump was automatic */
if (!manual)
BUG_ON(1);
return 0;
}
static irqreturn_t z180_isr(int irq, void *data)
{
irqreturn_t result = IRQ_NONE;
unsigned int status;
struct kgsl_device *device = (struct kgsl_device *) data;
struct z180_device *z180_dev = Z180_DEVICE(device);
z180_regread(device, ADDR_VGC_IRQSTATUS >> 2, &status);
if (status & GSL_VGC_INT_MASK) {
z180_regwrite(device,
ADDR_VGC_IRQSTATUS >> 2, status & GSL_VGC_INT_MASK);
result = IRQ_HANDLED;
if (status & REG_VGC_IRQSTATUS__FIFO_MASK)
KGSL_DRV_ERR(device, "z180 fifo interrupt\n");
if (status & REG_VGC_IRQSTATUS__MH_MASK)
kgsl_mh_intrcallback(device);
if (status & REG_VGC_IRQSTATUS__G2D_MASK) {
int count;
z180_regread(device,
ADDR_VGC_IRQ_ACTIVE_CNT >> 2,
&count);
count >>= 8;
count &= 255;
z180_dev->timestamp += count;
queue_work(device->work_queue, &device->ts_expired_ws);
wake_up_interruptible(&device->wait_queue);
atomic_notifier_call_chain(
&(device->ts_notifier_list),
device->id, NULL);
}
static void z180_dump_ib(struct kgsl_device *device)
{
unsigned int rb_size;
unsigned int *rb_hostptr;
unsigned int rb_words;
unsigned int rb_gpuaddr;
unsigned int ib_gpuptr = 0;
unsigned int ib_size = 0;
void *ib_hostptr = NULL;
int rb_slot_num = -1;
struct z180_device *z180_dev = Z180_DEVICE(device);
struct kgsl_mem_entry *entry = NULL;
phys_addr_t pt_base;
unsigned int i;
unsigned int j;
char linebuf[CHARS_PER_LINE];
unsigned int current_ib_slot;
unsigned int len;
unsigned int rowsize;
KGSL_LOG_DUMP(device, "Z180 IB dump\n");
rb_hostptr = (unsigned int *) z180_dev->ringbuffer.cmdbufdesc.hostptr;
rb_size = Z180_RB_SIZE;
rb_gpuaddr = z180_dev->ringbuffer.cmdbufdesc.gpuaddr;
rb_words = rb_size/sizeof(unsigned int);
KGSL_LOG_DUMP(device, "Ringbuffer size (bytes): %u\n", rb_size);
KGSL_LOG_DUMP(device, "rb_words: %d\n", rb_words);
pt_base = kgsl_mmu_get_current_ptbase(&device->mmu);
for (i = 0; i < rb_words; i++) {
if (rb_hostptr[i] == Z180_STREAM_PACKET_CALL) {
rb_slot_num++;
current_ib_slot =
z180_dev->current_timestamp % Z180_PACKET_COUNT;
if (rb_slot_num != current_ib_slot)
continue;
ib_gpuptr = rb_hostptr[i+1];
entry = kgsl_get_mem_entry(device, pt_base, ib_gpuptr,
1);
if (entry == NULL) {
KGSL_LOG_DUMP(device,
"IB mem entry not found for ringbuffer slot#: %d\n",
rb_slot_num);
continue;
}
ib_hostptr = kgsl_memdesc_map(&entry->memdesc);
if (ib_hostptr == NULL) {
KGSL_LOG_DUMP(device,
"Could not map IB to kernel memory, Ringbuffer Slot: %d\n",
rb_slot_num);
kgsl_mem_entry_put(entry);
continue;
}
ib_size = entry->memdesc.size;
KGSL_LOG_DUMP(device,
"IB size: %dbytes, IB size in words: %d\n",
ib_size,
ib_size/sizeof(unsigned int));
for (j = 0; j < ib_size; j += WORDS_PER_LINE) {
len = ib_size - j*sizeof(unsigned int);
rowsize = WORDS_PER_LINE*sizeof(unsigned int);
hex_dump_to_buffer(ib_hostptr+j, len, rowsize,
sizeof(unsigned int), linebuf,
sizeof(linebuf), false);
KGSL_LOG_DUMP(device, "IB%d: %04X: %s\n",
rb_slot_num,
(rb_gpuaddr +
j*sizeof(unsigned int)),
linebuf);
}
KGSL_LOG_DUMP(device, "IB Dump Finished\n");
kgsl_mem_entry_put(entry);
}
}
}
