[PATCH v2 09/26] drm/amd/dal: IRQ Service

Harry Wentland harry.wentland at amd.com
Tue Feb 16 22:27:49 UTC 2016


Interface to set and ack DCE interrupts.

Signed-off-by: Harry Wentland <harry.wentland at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/dal/dc/irq/Makefile            |  21 ++
 .../drm/amd/dal/dc/irq/dce110/irq_service_dce110.c | 389 +++++++++++++++++++++
 .../drm/amd/dal/dc/irq/dce110/irq_service_dce110.h |  34 ++
 drivers/gpu/drm/amd/dal/dc/irq/irq_service.c       | 177 ++++++++++
 drivers/gpu/drm/amd/dal/dc/irq/irq_service.h       |  85 +++++
 5 files changed, 706 insertions(+)
 create mode 100644 drivers/gpu/drm/amd/dal/dc/irq/Makefile
 create mode 100644 drivers/gpu/drm/amd/dal/dc/irq/dce110/irq_service_dce110.c
 create mode 100644 drivers/gpu/drm/amd/dal/dc/irq/dce110/irq_service_dce110.h
 create mode 100644 drivers/gpu/drm/amd/dal/dc/irq/irq_service.c
 create mode 100644 drivers/gpu/drm/amd/dal/dc/irq/irq_service.h

diff --git a/drivers/gpu/drm/amd/dal/dc/irq/Makefile b/drivers/gpu/drm/amd/dal/dc/irq/Makefile
new file mode 100644
index 000000000000..f1c5faf94b83
--- /dev/null
+++ b/drivers/gpu/drm/amd/dal/dc/irq/Makefile
@@ -0,0 +1,21 @@
+#
+# Makefile for the 'audio' sub-component of DAL.
+# It provides the control and status of HW adapter resources,
+# that are global for the ASIC and sharable between pipes.
+
+IRQ = irq_service.o
+
+AMD_DAL_IRQ = $(addprefix $(AMDDALPATH)/dc/irq/,$(IRQ))
+
+AMD_DAL_FILES += $(AMD_DAL_IRQ)
+
+###############################################################################
+# DCE 11x
+###############################################################################
+ifdef CONFIG_DRM_AMD_DAL_DCE11_0
+IRQ_DCE11 = irq_service_dce110.o
+
+AMD_DAL_IRQ_DCE11 = $(addprefix $(AMDDALPATH)/dc/irq/dce110/,$(IRQ_DCE11))
+
+AMD_DAL_FILES += $(AMD_DAL_IRQ_DCE11)
+endif
diff --git a/drivers/gpu/drm/amd/dal/dc/irq/dce110/irq_service_dce110.c b/drivers/gpu/drm/amd/dal/dc/irq/dce110/irq_service_dce110.c
new file mode 100644
index 000000000000..4085b6f6e7fd
--- /dev/null
+++ b/drivers/gpu/drm/amd/dal/dc/irq/dce110/irq_service_dce110.c
@@ -0,0 +1,389 @@
+/*
+ * 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_dce110.h"
+
+#include "dce/dce_11_0_d.h"
+#include "dce/dce_11_0_sh_mask.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,
+			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,
+		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 hpd_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_HPD1 + reg_num] = {\
+		.enable_reg = mmHPD ## reg_num ## _DC_HPD_INT_CONTROL,\
+		.enable_mask = DC_HPD_INT_CONTROL__DC_HPD_INT_EN_MASK,\
+		.enable_value = {\
+			DC_HPD_INT_CONTROL__DC_HPD_INT_EN_MASK,\
+			~DC_HPD_INT_CONTROL__DC_HPD_INT_EN_MASK\
+		},\
+		.ack_reg = mmHPD ## reg_num ## _DC_HPD_INT_CONTROL,\
+		.ack_mask = DC_HPD_INT_CONTROL__DC_HPD_INT_ACK_MASK,\
+		.ack_value = DC_HPD_INT_CONTROL__DC_HPD_INT_ACK_MASK,\
+		.status_reg = mmHPD ## reg_num ## _DC_HPD_INT_STATUS,\
+		.funcs = &hpd_irq_info_funcs\
+	}
+
+#define hpd_rx_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_HPD1RX + reg_num] = {\
+		.enable_reg = mmHPD ## reg_num ## _DC_HPD_INT_CONTROL,\
+		.enable_mask = DC_HPD_INT_CONTROL__DC_HPD_RX_INT_EN_MASK,\
+		.enable_value = {\
+			DC_HPD_INT_CONTROL__DC_HPD_RX_INT_EN_MASK,\
+			~DC_HPD_INT_CONTROL__DC_HPD_RX_INT_EN_MASK },\
+		.ack_reg = mmHPD ## reg_num ## _DC_HPD_INT_CONTROL,\
+		.ack_mask = DC_HPD_INT_CONTROL__DC_HPD_RX_INT_ACK_MASK,\
+		.ack_value = DC_HPD_INT_CONTROL__DC_HPD_RX_INT_ACK_MASK,\
+		.status_reg = mmHPD ## reg_num ## _DC_HPD_INT_STATUS,\
+		.funcs = &hpd_rx_irq_info_funcs\
+	}
+#define pflip_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_PFLIP1 + reg_num] = {\
+		.enable_reg = mmDCP ## reg_num ## _GRPH_INTERRUPT_CONTROL,\
+		.enable_mask =\
+		GRPH_INTERRUPT_CONTROL__GRPH_PFLIP_INT_MASK_MASK,\
+		.enable_value = {\
+			GRPH_INTERRUPT_CONTROL__GRPH_PFLIP_INT_MASK_MASK,\
+			~GRPH_INTERRUPT_CONTROL__GRPH_PFLIP_INT_MASK_MASK},\
+		.ack_reg = mmDCP ## reg_num ## _GRPH_INTERRUPT_STATUS,\
+		.ack_mask = GRPH_INTERRUPT_STATUS__GRPH_PFLIP_INT_CLEAR_MASK,\
+		.ack_value = GRPH_INTERRUPT_STATUS__GRPH_PFLIP_INT_CLEAR_MASK,\
+		.status_reg = mmDCP ## reg_num ##_GRPH_INTERRUPT_STATUS,\
+		.funcs = &pflip_irq_info_funcs\
+	}
+
+#define vsync_int_entry(reg_num) \
+	[DC_IRQ_SOURCE_CRTC ## reg_num ## VSYNC] = dummy_irq_entry()
+
+#define vupdate_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
+		.enable_reg = mmCRTC ## reg_num ## _CRTC_INTERRUPT_CONTROL,\
+		.enable_mask =\
+		CRTC_INTERRUPT_CONTROL__CRTC_V_UPDATE_INT_MSK_MASK,\
+		.enable_value = {\
+			CRTC_INTERRUPT_CONTROL__CRTC_V_UPDATE_INT_MSK_MASK,\
+			~CRTC_INTERRUPT_CONTROL__CRTC_V_UPDATE_INT_MSK_MASK},\
+		.ack_reg = mmCRTC ## reg_num ## _CRTC_V_UPDATE_INT_STATUS,\
+		.ack_mask =\
+		CRTC_V_UPDATE_INT_STATUS__CRTC_V_UPDATE_INT_CLEAR_MASK,\
+		.ack_value =\
+		CRTC_V_UPDATE_INT_STATUS__CRTC_V_UPDATE_INT_CLEAR_MASK,\
+		.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 azalia_int_entry(reg_num) \
+	[DC_IRQ_SOURCE_AZALIA ## 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 bool dummy_set(
+	struct irq_service *irq_service,
+	const struct irq_source_info *info,
+	bool enable)
+{
+	dal_logger_write(
+		irq_service->ctx->logger,
+		LOG_MAJOR_ERROR,
+		LOG_MINOR_COMPONENT_IRQ_SERVICE,
+		"%s: called for non-implemented irq source\n",
+		__func__);
+	return false;
+}
+
+static bool dummy_ack(
+	struct irq_service *irq_service,
+	const struct irq_source_info *info)
+{
+	dal_logger_write(
+		irq_service->ctx->logger,
+		LOG_MAJOR_ERROR,
+		LOG_MINOR_COMPONENT_IRQ_SERVICE,
+		"%s: called for non-implemented irq source\n",
+		__func__);
+	return false;
+}
+
+static const struct irq_source_info_funcs dummy_irq_info_funcs = {
+	.set = dummy_set,
+	.ack = dummy_ack
+};
+
+static const struct irq_source_info
+irq_source_info_dce110[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),
+	azalia_int_entry(0),
+	azalia_int_entry(1),
+	azalia_int_entry(2),
+	azalia_int_entry(3),
+	azalia_int_entry(4),
+	azalia_int_entry(5),
+	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),
+	vsync_int_entry(1),
+	vsync_int_entry(2),
+	vsync_int_entry(3),
+	vsync_int_entry(3),
+	vsync_int_entry(4),
+	vsync_int_entry(5),
+	[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),
+};
+
+static enum dc_irq_source to_dal_irq_source(
+		struct irq_service *irq_service,
+		uint32_t src_id,
+		uint32_t ext_id)
+{
+	switch (src_id) {
+	case VISLANDS30_IV_SRCID_D1_V_UPDATE_INT:
+		return DC_IRQ_SOURCE_VUPDATE1;
+	case VISLANDS30_IV_SRCID_D2_V_UPDATE_INT:
+		return DC_IRQ_SOURCE_VUPDATE2;
+	case VISLANDS30_IV_SRCID_D3_V_UPDATE_INT:
+		return DC_IRQ_SOURCE_VUPDATE3;
+	case VISLANDS30_IV_SRCID_D4_V_UPDATE_INT:
+		return DC_IRQ_SOURCE_VUPDATE4;
+	case VISLANDS30_IV_SRCID_D5_V_UPDATE_INT:
+		return DC_IRQ_SOURCE_VUPDATE5;
+	case VISLANDS30_IV_SRCID_D6_V_UPDATE_INT:
+		return DC_IRQ_SOURCE_VUPDATE6;
+	case VISLANDS30_IV_SRCID_D1_GRPH_PFLIP:
+		return DC_IRQ_SOURCE_PFLIP1;
+	case VISLANDS30_IV_SRCID_D2_GRPH_PFLIP:
+		return DC_IRQ_SOURCE_PFLIP2;
+	case VISLANDS30_IV_SRCID_D3_GRPH_PFLIP:
+		return DC_IRQ_SOURCE_PFLIP3;
+	case VISLANDS30_IV_SRCID_D4_GRPH_PFLIP:
+		return DC_IRQ_SOURCE_PFLIP4;
+	case VISLANDS30_IV_SRCID_D5_GRPH_PFLIP:
+		return DC_IRQ_SOURCE_PFLIP5;
+	case VISLANDS30_IV_SRCID_D6_GRPH_PFLIP:
+		return DC_IRQ_SOURCE_PFLIP6;
+
+	case VISLANDS30_IV_SRCID_HOTPLUG_DETECT_A:
+		/* generic src_id for all HPD and HPDRX interrupts */
+		switch (ext_id) {
+		case VISLANDS30_IV_EXTID_HOTPLUG_DETECT_A:
+			return DC_IRQ_SOURCE_HPD1;
+		case VISLANDS30_IV_EXTID_HOTPLUG_DETECT_B:
+			return DC_IRQ_SOURCE_HPD2;
+		case VISLANDS30_IV_EXTID_HOTPLUG_DETECT_C:
+			return DC_IRQ_SOURCE_HPD3;
+		case VISLANDS30_IV_EXTID_HOTPLUG_DETECT_D:
+			return DC_IRQ_SOURCE_HPD4;
+		case VISLANDS30_IV_EXTID_HOTPLUG_DETECT_E:
+			return DC_IRQ_SOURCE_HPD5;
+		case VISLANDS30_IV_EXTID_HOTPLUG_DETECT_F:
+			return DC_IRQ_SOURCE_HPD6;
+		case VISLANDS30_IV_EXTID_HPD_RX_A:
+			return DC_IRQ_SOURCE_HPD1RX;
+		case VISLANDS30_IV_EXTID_HPD_RX_B:
+			return DC_IRQ_SOURCE_HPD2RX;
+		case VISLANDS30_IV_EXTID_HPD_RX_C:
+			return DC_IRQ_SOURCE_HPD3RX;
+		case VISLANDS30_IV_EXTID_HPD_RX_D:
+			return DC_IRQ_SOURCE_HPD4RX;
+		case VISLANDS30_IV_EXTID_HPD_RX_E:
+			return DC_IRQ_SOURCE_HPD5RX;
+		case VISLANDS30_IV_EXTID_HPD_RX_F:
+			return DC_IRQ_SOURCE_HPD6RX;
+		default:
+			return DC_IRQ_SOURCE_INVALID;
+		}
+		break;
+
+	default:
+		return DC_IRQ_SOURCE_INVALID;
+	}
+}
+
+static const struct irq_service_funcs irq_service_funcs_dce110 = {
+		.to_dal_irq_source = to_dal_irq_source
+};
+
+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_dce110;
+	irq_service->funcs = &irq_service_funcs_dce110;
+
+	return true;
+}
+
+struct irq_service *dal_irq_service_dce110_create(
+	struct irq_service_init_data *init_data)
+{
+	struct irq_service *irq_service = dm_alloc(init_data->ctx, sizeof(*irq_service));
+
+	if (!irq_service)
+		return NULL;
+
+	if (construct(irq_service, init_data))
+		return irq_service;
+
+	dm_free(init_data->ctx, irq_service);
+	return NULL;
+}
diff --git a/drivers/gpu/drm/amd/dal/dc/irq/dce110/irq_service_dce110.h b/drivers/gpu/drm/amd/dal/dc/irq/dce110/irq_service_dce110.h
new file mode 100644
index 000000000000..d6c28e940403
--- /dev/null
+++ b/drivers/gpu/drm/amd/dal/dc/irq/dce110/irq_service_dce110.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_DCE110_H__
+#define __DAL_IRQ_SERVICE_DCE110_H__
+
+#include "../irq_service.h"
+
+struct irq_service *dal_irq_service_dce110_create(
+	struct irq_service_init_data *init_data);
+
+#endif
diff --git a/drivers/gpu/drm/amd/dal/dc/irq/irq_service.c b/drivers/gpu/drm/amd/dal/dc/irq/irq_service.c
new file mode 100644
index 000000000000..137233134a53
--- /dev/null
+++ b/drivers/gpu/drm/amd/dal/dc/irq/irq_service.c
@@ -0,0 +1,177 @@
+/*
+ * 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/irq_service_interface.h"
+#include "include/logger_interface.h"
+
+#if defined(CONFIG_DRM_AMD_DAL_DCE11_0)
+#include "dce110/irq_service_dce110.h"
+#endif
+
+#include "irq_service.h"
+
+bool dal_irq_service_construct(
+	struct irq_service *irq_service,
+	struct irq_service_init_data *init_data)
+{
+	if (!init_data || !init_data->ctx)
+		return false;
+
+	irq_service->ctx = init_data->ctx;
+	return true;
+}
+
+struct irq_service *dal_irq_service_create(
+	enum dce_version version,
+	struct irq_service_init_data *init_data)
+{
+	switch (version) {
+#if defined(CONFIG_DRM_AMD_DAL_DCE10_0)
+	case DCE_VERSION_10_0:
+		return dal_irq_service_dce110_create(init_data);
+#endif
+#if defined(CONFIG_DRM_AMD_DAL_DCE11_0)
+	case DCE_VERSION_11_0:
+		return dal_irq_service_dce110_create(init_data);
+#endif
+	default:
+		return NULL;
+	}
+}
+
+void dal_irq_service_destroy(struct irq_service **irq_service)
+{
+	if (!irq_service || !*irq_service) {
+		BREAK_TO_DEBUGGER();
+		return;
+	}
+
+	dm_free((*irq_service)->ctx, *irq_service);
+
+	*irq_service = NULL;
+}
+
+const struct irq_source_info *find_irq_source_info(
+	struct irq_service *irq_service,
+	enum dc_irq_source source)
+{
+	if (source > DAL_IRQ_SOURCES_NUMBER || source < DC_IRQ_SOURCE_INVALID)
+		return NULL;
+
+	return &irq_service->info[source];
+}
+
+void dal_irq_service_set_generic(
+	struct irq_service *irq_service,
+	const struct irq_source_info *info,
+	bool enable)
+{
+	uint32_t addr = info->enable_reg;
+	uint32_t value = dm_read_reg(irq_service->ctx, addr);
+
+	value = (value & ~info->enable_mask) |
+		(info->enable_value[enable ? 0 : 1] & info->enable_mask);
+	dm_write_reg(irq_service->ctx, addr, value);
+}
+
+bool dal_irq_service_set(
+	struct irq_service *irq_service,
+	enum dc_irq_source source,
+	bool enable)
+{
+	const struct irq_source_info *info =
+		find_irq_source_info(irq_service, source);
+
+	if (!info) {
+		dal_logger_write(
+			irq_service->ctx->logger,
+			LOG_MAJOR_ERROR,
+			LOG_MINOR_COMPONENT_IRQ_SERVICE,
+			"%s: cannot find irq info table entry for %d\n",
+			__func__,
+			source);
+		return false;
+	}
+
+	dal_irq_service_ack(irq_service, source);
+
+	if (info->funcs->set)
+		return info->funcs->set(irq_service, info, enable);
+
+	dal_irq_service_set_generic(irq_service, info, enable);
+
+	return true;
+}
+
+void dal_irq_service_ack_generic(
+	struct irq_service *irq_service,
+	const struct irq_source_info *info)
+{
+	uint32_t addr = info->ack_reg;
+	uint32_t value = dm_read_reg(irq_service->ctx, addr);
+
+	value = (value & ~info->ack_mask) |
+		(info->ack_value & info->ack_mask);
+	dm_write_reg(irq_service->ctx, addr, value);
+}
+
+bool dal_irq_service_ack(
+	struct irq_service *irq_service,
+	enum dc_irq_source source)
+{
+	const struct irq_source_info *info =
+		find_irq_source_info(irq_service, source);
+
+	if (!info) {
+		dal_logger_write(
+			irq_service->ctx->logger,
+			LOG_MAJOR_ERROR,
+			LOG_MINOR_COMPONENT_IRQ_SERVICE,
+			"%s: cannot find irq info table entry for %d\n",
+			__func__,
+			source);
+		return false;
+	}
+
+	if (info->funcs->ack)
+		return info->funcs->ack(irq_service, info);
+
+	dal_irq_service_ack_generic(irq_service, info);
+
+	return true;
+}
+
+enum dc_irq_source dal_irq_service_to_irq_source(
+		struct irq_service *irq_service,
+		uint32_t src_id,
+		uint32_t ext_id)
+{
+	return irq_service->funcs->to_dal_irq_source(
+		irq_service,
+		src_id,
+		ext_id);
+}
diff --git a/drivers/gpu/drm/amd/dal/dc/irq/irq_service.h b/drivers/gpu/drm/amd/dal/dc/irq/irq_service.h
new file mode 100644
index 000000000000..a2a2d6965c2f
--- /dev/null
+++ b/drivers/gpu/drm/amd/dal/dc/irq/irq_service.h
@@ -0,0 +1,85 @@
+/*
+ * 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_H__
+#define __DAL_IRQ_SERVICE_H__
+
+#include "include/irq_service_interface.h"
+
+#include "irq_types.h"
+
+struct irq_service;
+struct irq_source_info;
+
+struct irq_source_info_funcs {
+	bool (*set)(
+		struct irq_service *irq_service,
+		const struct irq_source_info *info,
+		bool enable);
+	bool (*ack)(
+		struct irq_service *irq_service,
+		const struct irq_source_info *info);
+};
+
+struct irq_source_info {
+	uint32_t src_id;
+	uint32_t ext_id;
+	uint32_t enable_reg;
+	uint32_t enable_mask;
+	uint32_t enable_value[2];
+	uint32_t ack_reg;
+	uint32_t ack_mask;
+	uint32_t ack_value;
+	uint32_t status_reg;
+	const struct irq_source_info_funcs *funcs;
+};
+
+struct irq_service_funcs {
+	enum dc_irq_source (*to_dal_irq_source)(
+			struct irq_service *irq_service,
+			uint32_t src_id,
+			uint32_t ext_id);
+};
+
+struct irq_service {
+	struct dc_context *ctx;
+	const struct irq_source_info *info;
+	const struct irq_service_funcs *funcs;
+};
+
+bool dal_irq_service_construct(
+	struct irq_service *irq_service,
+	struct irq_service_init_data *init_data);
+
+void dal_irq_service_ack_generic(
+	struct irq_service *irq_service,
+	const struct irq_source_info *info);
+
+void dal_irq_service_set_generic(
+	struct irq_service *irq_service,
+	const struct irq_source_info *info,
+	bool enable);
+
+#endif
-- 
2.1.4



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