Example #1
0
static int pm_dump_set(void *data, u64 val)
{
    struct kgsl_device *device = data;

    if (val) {
        kgsl_mutex_lock(&device->mutex, &device->mutex_owner);
        kgsl_postmortem_dump(device, 1);
        kgsl_mutex_unlock(&device->mutex, &device->mutex_owner);
    }

    return 0;
}
Example #2
0
/* functions */
void kgsl_cp_intrcallback(struct kgsl_device *device)
{
	unsigned int status = 0, num_reads = 0, master_status = 0;
	struct kgsl_yamato_device *yamato_device = (struct kgsl_yamato_device *)
								device;
	struct kgsl_ringbuffer *rb = &device->ringbuffer;

	KGSL_CMD_VDBG("enter (device=%p)\n", device);

	kgsl_yamato_regread(device, REG_MASTER_INT_SIGNAL, &master_status);
	while (!status && (num_reads < VALID_STATUS_COUNT_MAX) &&
		(master_status & MASTER_INT_SIGNAL__CP_INT_STAT)) {
		kgsl_yamato_regread(device, REG_CP_INT_STATUS, &status);
		kgsl_yamato_regread(device, REG_MASTER_INT_SIGNAL,
					&master_status);
		num_reads++;
	}
	if (num_reads > 1)
		KGSL_DRV_WARN("Looped %d times to read REG_CP_INT_STATUS\n",
				num_reads);
	if (!status) {
		if (master_status & MASTER_INT_SIGNAL__CP_INT_STAT) {
			/* This indicates that we could not read CP_INT_STAT.
			 * As a precaution just wake up processes so
			 * they can check their timestamps. Since, we
			 * did not ack any interrupts this interrupt will
			 * be generated again */
			KGSL_DRV_WARN("Unable to read CP_INT_STATUS\n");
			wake_up_interruptible_all(&yamato_device->ib1_wq);
		} else
			KGSL_DRV_WARN("Spurious interrput detected\n");
		return;
	}

	if (status & CP_INT_CNTL__RB_INT_MASK) {
		/* signal intr completion event */
		unsigned int enableflag = 0;
		kgsl_sharedmem_writel(&rb->device->memstore,
			KGSL_DEVICE_MEMSTORE_OFFSET(ts_cmp_enable),
			enableflag);
		wmb();
		KGSL_CMD_WARN("ringbuffer rb interrupt\n");
	}

	if (status & CP_INT_CNTL__T0_PACKET_IN_IB_MASK) {
		KGSL_CMD_FATAL("ringbuffer TO packet in IB interrupt\n");
		kgsl_yamato_regwrite(rb->device, REG_CP_INT_CNTL, 0);
		kgsl_postmortem_dump(device);
	}
	if (status & CP_INT_CNTL__OPCODE_ERROR_MASK) {
		KGSL_CMD_FATAL("ringbuffer opcode error interrupt\n");
		kgsl_yamato_regwrite(rb->device, REG_CP_INT_CNTL, 0);
		kgsl_postmortem_dump(device);
	}
	if (status & CP_INT_CNTL__PROTECTED_MODE_ERROR_MASK) {
		KGSL_CMD_FATAL("ringbuffer protected mode error interrupt\n");
		kgsl_yamato_regwrite(rb->device, REG_CP_INT_CNTL, 0);
		kgsl_postmortem_dump(device);
	}
	if (status & CP_INT_CNTL__RESERVED_BIT_ERROR_MASK) {
		KGSL_CMD_FATAL("ringbuffer reserved bit error interrupt\n");
		kgsl_yamato_regwrite(rb->device, REG_CP_INT_CNTL, 0);
		kgsl_postmortem_dump(device);
	}
	if (status & CP_INT_CNTL__IB_ERROR_MASK) {
		KGSL_CMD_FATAL("ringbuffer IB error interrupt\n");
		kgsl_yamato_regwrite(rb->device, REG_CP_INT_CNTL, 0);
		kgsl_postmortem_dump(device);
	}
	if (status & CP_INT_CNTL__SW_INT_MASK)
		KGSL_CMD_DBG("ringbuffer software interrupt\n");

	if (status & CP_INT_CNTL__IB2_INT_MASK)
		KGSL_CMD_DBG("ringbuffer ib2 interrupt\n");

	if (status & (~GSL_CP_INT_MASK))
		KGSL_CMD_DBG("bad bits in REG_CP_INT_STATUS %08x\n", status);

	/* only ack bits we understand */
	status &= GSL_CP_INT_MASK;
	kgsl_yamato_regwrite(device, REG_CP_INT_ACK, status);

	if (status & (CP_INT_CNTL__IB1_INT_MASK | CP_INT_CNTL__RB_INT_MASK)) {
		KGSL_CMD_WARN("ringbuffer ib1/rb interrupt\n");
		wake_up_interruptible_all(&yamato_device->ib1_wq);
		atomic_notifier_call_chain(&(device->ts_notifier_list),
					   KGSL_DEVICE_YAMATO,
					   NULL);
	}

	KGSL_CMD_VDBG("return\n");
}