1 // SPDX-License-Identifier: GPL-2.0-only
24 #define SOCRATES_FPGA_IRQ_MASK	((1 << SOCRATES_FPGA_NUM_IRQS) - 1)
68 	unsigned long flags;  in socrates_fpga_pic_get_irq()  local
79 	raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_get_irq()
81 	raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_get_irq()
82 	for (i = SOCRATES_FPGA_NUM_IRQS - 1; i >= 0; i--) {  in socrates_fpga_pic_get_irq()
104 	chip->irq_eoi(&desc->irq_data);  in socrates_fpga_pic_cascade()
109 	unsigned long flags;  in socrates_fpga_pic_ack()  local
111 	uint32_t mask;  in socrates_fpga_pic_ack()  local
114 	raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_ack()
115 	mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))  in socrates_fpga_pic_ack()
117 	mask |= (1 << (hwirq + 16));  in socrates_fpga_pic_ack()
118 	socrates_fpga_pic_write(FPGA_PIC_IRQMASK(irq_line), mask);  in socrates_fpga_pic_ack()
119 	raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_ack()
124 	unsigned long flags;  in socrates_fpga_pic_mask()  local
127 	u32 mask;  in socrates_fpga_pic_mask()  local
130 	raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_mask()
131 	mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))  in socrates_fpga_pic_mask()
133 	mask &= ~(1 << hwirq);  in socrates_fpga_pic_mask()
134 	socrates_fpga_pic_write(FPGA_PIC_IRQMASK(irq_line), mask);  in socrates_fpga_pic_mask()
135 	raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_mask()
140 	unsigned long flags;  in socrates_fpga_pic_mask_ack()  local
143 	u32 mask;  in socrates_fpga_pic_mask_ack()  local
146 	raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_mask_ack()
147 	mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))  in socrates_fpga_pic_mask_ack()
149 	mask &= ~(1 << hwirq);  in socrates_fpga_pic_mask_ack()
150 	mask |= (1 << (hwirq + 16));  in socrates_fpga_pic_mask_ack()
151 	socrates_fpga_pic_write(FPGA_PIC_IRQMASK(irq_line), mask);  in socrates_fpga_pic_mask_ack()
152 	raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_mask_ack()
157 	unsigned long flags;  in socrates_fpga_pic_unmask()  local
160 	u32 mask;  in socrates_fpga_pic_unmask()  local
163 	raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_unmask()
164 	mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))  in socrates_fpga_pic_unmask()
166 	mask |= (1 << hwirq);  in socrates_fpga_pic_unmask()
167 	socrates_fpga_pic_write(FPGA_PIC_IRQMASK(irq_line), mask);  in socrates_fpga_pic_unmask()
168 	raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_unmask()
173 	unsigned long flags;  in socrates_fpga_pic_eoi()  local
176 	u32 mask;  in socrates_fpga_pic_eoi()  local
179 	raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_eoi()
180 	mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))  in socrates_fpga_pic_eoi()
182 	mask |= (1 << (hwirq + 16));  in socrates_fpga_pic_eoi()
183 	socrates_fpga_pic_write(FPGA_PIC_IRQMASK(irq_line), mask);  in socrates_fpga_pic_eoi()
184 	raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_eoi()
190 	unsigned long flags;  in socrates_fpga_pic_set_type()  local
193 	u32 mask;  in socrates_fpga_pic_set_type()  local
196 		return -EINVAL;  in socrates_fpga_pic_set_type()
206 		return -EINVAL;  in socrates_fpga_pic_set_type()
208 	raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_set_type()
209 	mask = socrates_fpga_pic_read(FPGA_PIC_IRQCFG);  in socrates_fpga_pic_set_type()
211 		mask |= (1 << hwirq);  in socrates_fpga_pic_set_type()
213 		mask &= ~(1 << hwirq);  in socrates_fpga_pic_set_type()
214 	socrates_fpga_pic_write(FPGA_PIC_IRQCFG, mask);  in socrates_fpga_pic_set_type()
215 	raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_set_type()
220 	.name		= "FPGA-PIC",
247 	if  (fpga_irq->type == IRQ_TYPE_NONE) {  in socrates_fpga_pic_host_xlate()
258 		*out_flags = fpga_irq->type;  in socrates_fpga_pic_host_xlate()
263 		fpga_irq->irq_line = intspec[2];  in socrates_fpga_pic_host_xlate()
277 	unsigned long flags;  in socrates_fpga_pic_init()  local
300 	raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_init()
307 	raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);  in socrates_fpga_pic_init()