drm/amd/display: Add DCE12 irq support

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/irq/dce120/irq_service_dce120.c

@@ -0,0 +1,293 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+
+#include "include/logger_interface.h"
+
+#include "irq_service_dce120.h"
+#include "../dce110/irq_service_dce110.h"
+
+#include "vega10/DC/dce_12_0_offset.h"
+#include "vega10/DC/dce_12_0_sh_mask.h"
+#include "vega10/soc15ip.h"
+
+#include "ivsrcid/ivsrcid_vislands30.h"
+
+static bool hpd_ack(
+	struct irq_service *irq_service,
+	const struct irq_source_info *info)
+{
+	uint32_t addr = info->status_reg;
+	uint32_t value = dm_read_reg(irq_service->ctx, addr);
+	uint32_t current_status =
+		get_reg_field_value(
+			value,
+			HPD0_DC_HPD_INT_STATUS,
+			DC_HPD_SENSE_DELAYED);
+
+	dal_irq_service_ack_generic(irq_service, info);
+
+	value = dm_read_reg(irq_service->ctx, info->enable_reg);
+
+	set_reg_field_value(
+		value,
+		current_status ? 0 : 1,
+		HPD0_DC_HPD_INT_CONTROL,
+		DC_HPD_INT_POLARITY);
+
+	dm_write_reg(irq_service->ctx, info->enable_reg, value);
+
+	return true;
+}
+
+static const struct irq_source_info_funcs hpd_irq_info_funcs = {
+	.set = NULL,
+	.ack = hpd_ack
+};
+
+static const struct irq_source_info_funcs hpd_rx_irq_info_funcs = {
+	.set = NULL,
+	.ack = NULL
+};
+
+static const struct irq_source_info_funcs pflip_irq_info_funcs = {
+	.set = NULL,
+	.ack = NULL
+};
+
+static const struct irq_source_info_funcs vblank_irq_info_funcs = {
+	.set = NULL,
+	.ack = NULL
+};
+
+#define BASE_INNER(seg) \
+	DCE_BASE__INST0_SEG ## seg
+
+#define BASE(seg) \
+	BASE_INNER(seg)
+
+#define SRI(reg_name, block, id)\
+	BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+			mm ## block ## id ## _ ## reg_name
+
+
+#define IRQ_REG_ENTRY(block, reg_num, reg1, mask1, reg2, mask2)\
+	.enable_reg = SRI(reg1, block, reg_num),\
+	.enable_mask = \
+		block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK,\
+	.enable_value = {\
+		block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK,\
+		~block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK \
+	},\
+	.ack_reg = SRI(reg2, block, reg_num),\
+	.ack_mask = \
+		block ## reg_num ## _ ## reg2 ## __ ## mask2 ## _MASK,\
+	.ack_value = \
+		block ## reg_num ## _ ## reg2 ## __ ## mask2 ## _MASK \
+
+#define hpd_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_HPD1 + reg_num] = {\
+		IRQ_REG_ENTRY(HPD, reg_num,\
+			DC_HPD_INT_CONTROL, DC_HPD_INT_EN,\
+			DC_HPD_INT_CONTROL, DC_HPD_INT_ACK),\
+		.status_reg = SRI(DC_HPD_INT_STATUS, HPD, reg_num),\
+		.funcs = &hpd_irq_info_funcs\
+	}
+
+#define hpd_rx_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_HPD1RX + reg_num] = {\
+		IRQ_REG_ENTRY(HPD, reg_num,\
+			DC_HPD_INT_CONTROL, DC_HPD_RX_INT_EN,\
+			DC_HPD_INT_CONTROL, DC_HPD_RX_INT_ACK),\
+		.status_reg = SRI(DC_HPD_INT_STATUS, HPD, reg_num),\
+		.funcs = &hpd_rx_irq_info_funcs\
+	}
+#define pflip_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_PFLIP1 + reg_num] = {\
+		IRQ_REG_ENTRY(DCP, reg_num, \
+			GRPH_INTERRUPT_CONTROL, GRPH_PFLIP_INT_MASK, \
+			GRPH_INTERRUPT_STATUS, GRPH_PFLIP_INT_CLEAR),\
+		.status_reg = SRI(GRPH_INTERRUPT_STATUS, DCP, reg_num),\
+		.funcs = &pflip_irq_info_funcs\
+	}
+
+#define vupdate_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
+		IRQ_REG_ENTRY(CRTC, reg_num,\
+			CRTC_INTERRUPT_CONTROL, CRTC_V_UPDATE_INT_MSK,\
+			CRTC_V_UPDATE_INT_STATUS, CRTC_V_UPDATE_INT_CLEAR),\
+		.funcs = &vblank_irq_info_funcs\
+	}
+
+#define vblank_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_VBLANK1 + reg_num] = {\
+		IRQ_REG_ENTRY(LB, reg_num,\
+			LB_INTERRUPT_MASK, VBLANK_INTERRUPT_MASK,\
+			LB_VBLANK_STATUS, VBLANK_ACK),\
+		.funcs = &vblank_irq_info_funcs\
+	}
+
+#define dummy_irq_entry() \
+	{\
+		.funcs = &dummy_irq_info_funcs\
+	}
+
+#define i2c_int_entry(reg_num) \
+	[DC_IRQ_SOURCE_I2C_DDC ## reg_num] = dummy_irq_entry()
+
+#define dp_sink_int_entry(reg_num) \
+	[DC_IRQ_SOURCE_DPSINK ## reg_num] = dummy_irq_entry()
+
+#define gpio_pad_int_entry(reg_num) \
+	[DC_IRQ_SOURCE_GPIOPAD ## reg_num] = dummy_irq_entry()
+
+#define dc_underflow_int_entry(reg_num) \
+	[DC_IRQ_SOURCE_DC ## reg_num ## UNDERFLOW] = dummy_irq_entry()
+
+static const struct irq_source_info_funcs dummy_irq_info_funcs = {
+	.set = dal_irq_service_dummy_set,
+	.ack = dal_irq_service_dummy_ack
+};
+
+static const struct irq_source_info
+irq_source_info_dce120[DAL_IRQ_SOURCES_NUMBER] = {
+	[DC_IRQ_SOURCE_INVALID] = dummy_irq_entry(),
+	hpd_int_entry(0),
+	hpd_int_entry(1),
+	hpd_int_entry(2),
+	hpd_int_entry(3),
+	hpd_int_entry(4),
+	hpd_int_entry(5),
+	hpd_rx_int_entry(0),
+	hpd_rx_int_entry(1),
+	hpd_rx_int_entry(2),
+	hpd_rx_int_entry(3),
+	hpd_rx_int_entry(4),
+	hpd_rx_int_entry(5),
+	i2c_int_entry(1),
+	i2c_int_entry(2),
+	i2c_int_entry(3),
+	i2c_int_entry(4),
+	i2c_int_entry(5),
+	i2c_int_entry(6),
+	dp_sink_int_entry(1),
+	dp_sink_int_entry(2),
+	dp_sink_int_entry(3),
+	dp_sink_int_entry(4),
+	dp_sink_int_entry(5),
+	dp_sink_int_entry(6),
+	[DC_IRQ_SOURCE_TIMER] = dummy_irq_entry(),
+	pflip_int_entry(0),
+	pflip_int_entry(1),
+	pflip_int_entry(2),
+	pflip_int_entry(3),
+	pflip_int_entry(4),
+	pflip_int_entry(5),
+	[DC_IRQ_SOURCE_PFLIP_UNDERLAY0] = dummy_irq_entry(),
+	gpio_pad_int_entry(0),
+	gpio_pad_int_entry(1),
+	gpio_pad_int_entry(2),
+	gpio_pad_int_entry(3),
+	gpio_pad_int_entry(4),
+	gpio_pad_int_entry(5),
+	gpio_pad_int_entry(6),
+	gpio_pad_int_entry(7),
+	gpio_pad_int_entry(8),
+	gpio_pad_int_entry(9),
+	gpio_pad_int_entry(10),
+	gpio_pad_int_entry(11),
+	gpio_pad_int_entry(12),
+	gpio_pad_int_entry(13),
+	gpio_pad_int_entry(14),
+	gpio_pad_int_entry(15),
+	gpio_pad_int_entry(16),
+	gpio_pad_int_entry(17),
+	gpio_pad_int_entry(18),
+	gpio_pad_int_entry(19),
+	gpio_pad_int_entry(20),
+	gpio_pad_int_entry(21),
+	gpio_pad_int_entry(22),
+	gpio_pad_int_entry(23),
+	gpio_pad_int_entry(24),
+	gpio_pad_int_entry(25),
+	gpio_pad_int_entry(26),
+	gpio_pad_int_entry(27),
+	gpio_pad_int_entry(28),
+	gpio_pad_int_entry(29),
+	gpio_pad_int_entry(30),
+	dc_underflow_int_entry(1),
+	dc_underflow_int_entry(2),
+	dc_underflow_int_entry(3),
+	dc_underflow_int_entry(4),
+	dc_underflow_int_entry(5),
+	dc_underflow_int_entry(6),
+	[DC_IRQ_SOURCE_DMCU_SCP] = dummy_irq_entry(),
+	[DC_IRQ_SOURCE_VBIOS_SW] = dummy_irq_entry(),
+	vupdate_int_entry(0),
+	vupdate_int_entry(1),
+	vupdate_int_entry(2),
+	vupdate_int_entry(3),
+	vupdate_int_entry(4),
+	vupdate_int_entry(5),
+	vblank_int_entry(0),
+	vblank_int_entry(1),
+	vblank_int_entry(2),
+	vblank_int_entry(3),
+	vblank_int_entry(4),
+	vblank_int_entry(5),
+};
+
+static const struct irq_service_funcs irq_service_funcs_dce120 = {
+		.to_dal_irq_source = to_dal_irq_source_dce110
+};
+
+static bool construct(
+	struct irq_service *irq_service,
+	struct irq_service_init_data *init_data)
+{
+	if (!dal_irq_service_construct(irq_service, init_data))
+		return false;
+
+	irq_service->info = irq_source_info_dce120;
+	irq_service->funcs = &irq_service_funcs_dce120;
+
+	return true;
+}
+
+struct irq_service *dal_irq_service_dce120_create(
+	struct irq_service_init_data *init_data)
+{
+	struct irq_service *irq_service = dm_alloc(sizeof(*irq_service));
+
+	if (!irq_service)
+		return NULL;
+
+	if (construct(irq_service, init_data))
+		return irq_service;
+
+	dm_free(irq_service);
+	return NULL;
+}

drivers/gpu/drm/amd/display/dc/irq/dce120/irq_service_dce120.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_IRQ_SERVICE_DCE120_H__
+#define __DAL_IRQ_SERVICE_DCE120_H__
+
+#include "../irq_service.h"
+
+struct irq_service *dal_irq_service_dce120_create(
+	struct irq_service_init_data *init_data);
+
+#endif