path: root/common/recipes-kernel/linux/linux-yocto-4.14.71/5701-drm-amdgpu-Merge-amdkfd-into-amdgpu.patch

From b9e93608c6e89441477a797c2c8196d3d7984755 Mon Sep 17 00:00:00 2001
From: Amber Lin <Amber.Lin@amd.com>
Date: Wed, 22 Aug 2018 16:48:50 -0400
Subject: [PATCH 5701/5725] drm/amdgpu: Merge amdkfd into amdgpu
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Since KFD is only supported by single GPU driver, it makes sense to merge
amdgpu and amdkfd into one module. This patch is the initial step: merge
Kconfig and Makefile.

v2: also remove kfd from drm Kconfig

Signed-off-by: Amber Lin <Amber.Lin@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/Kconfig                 |  2 --
 drivers/gpu/drm/amd/amdgpu/Kconfig      |  1 +
 drivers/gpu/drm/amd/amdgpu/Makefile     |  9 +++--
 drivers/gpu/drm/amd/amdkfd/Kconfig      |  2 +-
 drivers/gpu/drm/amd/amdkfd/Makefile     | 57 ++++++++++++++++++-----------
 drivers/gpu/drm/amd/amdkfd/kfd_module.c | 64 +++++++++++----------------------
 6 files changed, 66 insertions(+), 69 deletions(-)

diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 1a4bda3..1745b8a 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -262,8 +262,6 @@ source "drivers/gpu/drm/bridge/Kconfig"
 
 source "drivers/gpu/drm/sti/Kconfig"
 
-source "drivers/gpu/drm/amd/amdkfd/Kconfig"
-
 source "drivers/gpu/drm/imx/Kconfig"
 
 source "drivers/gpu/drm/vc4/Kconfig"
diff --git a/drivers/gpu/drm/amd/amdgpu/Kconfig b/drivers/gpu/drm/amd/amdgpu/Kconfig
index 468a19b..d2ea710 100644
--- a/drivers/gpu/drm/amd/amdgpu/Kconfig
+++ b/drivers/gpu/drm/amd/amdgpu/Kconfig
@@ -42,3 +42,4 @@ config DRM_AMDGPU_GART_DEBUGFS
 
 source "drivers/gpu/drm/amd/acp/Kconfig"
 source "drivers/gpu/drm/amd/display/Kconfig"
+source "drivers/gpu/drm/amd/amdkfd/Kconfig"
diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
index 5edff50..e351f2d 100644
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -35,7 +35,8 @@ ccflags-y := -Iinclude/drm -I$(FULL_AMD_PATH)/include/asic_reg \
 	-I$(FULL_AMD_DISPLAY_PATH) \
 	-I$(FULL_AMD_DISPLAY_PATH)/include \
 	-I$(FULL_AMD_DISPLAY_PATH)/dc \
-	-I$(FULL_AMD_DISPLAY_PATH)/amdgpu_dm
+	-I$(FULL_AMD_DISPLAY_PATH)/amdgpu_dm \
+	-I$(FULL_AMD_PATH)/amdkfd
 
 amdgpu-y := amdgpu_drv.o
 
@@ -134,13 +135,17 @@ amdgpu-y += \
 	vcn_v1_0.o
 
 # add amdkfd interfaces
+ifneq ($(CONFIG_HSA_AMD),)
+AMDKFD_PATH := ../amdkfd
+include $(FULL_AMD_PATH)/amdkfd/Makefile
+amdgpu-y += $(AMDKFD_FILES)
 amdgpu-y += \
 	 amdgpu_amdkfd.o \
 	 amdgpu_amdkfd_gfx_v7.o \
 	 amdgpu_amdkfd_gfx_v8.o \
 	 amdgpu_amdkfd_gfx_v9.o \
 	 amdgpu_amdkfd_gpuvm.o
-
+endif
 # add cgs
 amdgpu-y += amdgpu_cgs.o
 
diff --git a/drivers/gpu/drm/amd/amdkfd/Kconfig b/drivers/gpu/drm/amd/amdkfd/Kconfig
index bc8d8f7..94cbfbc 100644
--- a/drivers/gpu/drm/amd/amdkfd/Kconfig
+++ b/drivers/gpu/drm/amd/amdkfd/Kconfig
@@ -3,7 +3,7 @@
 #
 
 config HSA_AMD
-	tristate "HSA kernel driver for AMD GPU devices"
+	bool "HSA kernel driver for AMD GPU devices"
 	depends on (DRM_RADEON || DRM_AMDGPU) && (X86_64 || PPC64 || ARM64)
 	select DRM_AMDGPU_USERPTR
 	imply AMD_IOMMU_V2
diff --git a/drivers/gpu/drm/amd/amdkfd/Makefile b/drivers/gpu/drm/amd/amdkfd/Makefile
index 4804f9c..911e67d 100644
--- a/drivers/gpu/drm/amd/amdkfd/Makefile
+++ b/drivers/gpu/drm/amd/amdkfd/Makefile
@@ -23,28 +23,43 @@
 # Makefile for Heterogenous System Architecture support for AMD GPU devices
 #
 
-FULL_AMD_PATH=$(src)/..
-ccflags-y := -I$(FULL_AMD_PATH)/include  \
-		-I$(FULL_AMD_PATH)/include/asic_reg
-
-amdkfd-y	:= kfd_module.o kfd_device.o kfd_chardev.o kfd_topology.o \
-		kfd_pasid.o kfd_doorbell.o kfd_flat_memory.o \
-		kfd_process.o kfd_queue.o kfd_mqd_manager.o \
-		kfd_mqd_manager_cik.o kfd_mqd_manager_vi.o \
-		kfd_mqd_manager_v9.o \
-		kfd_kernel_queue.o kfd_kernel_queue_cik.o \
-		kfd_kernel_queue_vi.o kfd_kernel_queue_v9.o \
-		kfd_packet_manager.o kfd_process_queue_manager.o \
-		kfd_device_queue_manager.o kfd_device_queue_manager_cik.o \
-		kfd_device_queue_manager_vi.o kfd_device_queue_manager_v9.o \
-		kfd_interrupt.o kfd_events.o cik_event_interrupt.o kfd_int_process_v9.o \
-		kfd_dbgdev.o kfd_dbgmgr.o kfd_flat_memory.o kfd_crat.o kfd_rdma.o \
-		kfd_peerdirect.o kfd_ipc.o
+AMDKFD_FILES   := $(AMDKFD_PATH)/kfd_module.o \
+		$(AMDKFD_PATH)/kfd_device.o \
+		$(AMDKFD_PATH)/kfd_chardev.o \
+		$(AMDKFD_PATH)/kfd_topology.o \
+		$(AMDKFD_PATH)/kfd_pasid.o \
+		$(AMDKFD_PATH)/kfd_doorbell.o \
+		$(AMDKFD_PATH)/kfd_flat_memory.o \
+		$(AMDKFD_PATH)/kfd_process.o \
+		$(AMDKFD_PATH)/kfd_queue.o \
+		$(AMDKFD_PATH)/kfd_mqd_manager.o \
+		$(AMDKFD_PATH)/kfd_mqd_manager_cik.o \
+		$(AMDKFD_PATH)/kfd_mqd_manager_vi.o \
+		$(AMDKFD_PATH)/kfd_mqd_manager_v9.o \
+		$(AMDKFD_PATH)/kfd_kernel_queue.o \
+		$(AMDKFD_PATH)/kfd_kernel_queue_cik.o \
+		$(AMDKFD_PATH)/kfd_kernel_queue_vi.o \
+		$(AMDKFD_PATH)/kfd_kernel_queue_v9.o \
+		$(AMDKFD_PATH)/kfd_packet_manager.o \
+		$(AMDKFD_PATH)/kfd_process_queue_manager.o \
+		$(AMDKFD_PATH)/kfd_device_queue_manager.o \
+		$(AMDKFD_PATH)/kfd_device_queue_manager_cik.o \
+		$(AMDKFD_PATH)/kfd_device_queue_manager_vi.o \
+		$(AMDKFD_PATH)/kfd_device_queue_manager_v9.o \
+		$(AMDKFD_PATH)/kfd_interrupt.o \
+		$(AMDKFD_PATH)/kfd_events.o \
+		$(AMDKFD_PATH)/cik_event_interrupt.o \
+		$(AMDKFD_PATH)/kfd_int_process_v9.o \
+		$(AMDKFD_PATH)/kfd_dbgdev.o \
+                $(AMDKFD_PATH)/kfd_dbgmgr.o \
+                $(AMDKFD_PATH)/kfd_flat_memory.o \
+		$(AMDKFD_PATH)/kfd_rdma.o \
+		$(AMDKFD_PATH)/kfd_crat.o
 
 ifneq ($(CONFIG_AMD_IOMMU_V2),)
-amdkfd-y += kfd_iommu.o
+AMDKFD_FILES += $(AMDKFD_PATH)/kfd_iommu.o
 endif
 
-amdkfd-$(CONFIG_DEBUG_FS) += kfd_debugfs.o
-
-obj-$(CONFIG_HSA_AMD)	+= amdkfd.o
+ifneq ($(CONFIG_DEBUG_FS),)
+AMDKFD_FILES += $(AMDKFD_PATH)/kfd_debugfs.o
+endif
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_module.c b/drivers/gpu/drm/amd/amdkfd/kfd_module.c
index 261657f..8675222 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_module.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_module.c
@@ -20,15 +20,11 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  */
 
-#include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/moduleparam.h>
 #include <linux/device.h>
-#include <linux/printk.h>
 #include "kfd_priv.h"
 
-#define KFD_DRIVER_AUTHOR	"AMD Inc. and others"
-
 #define KFD_DRIVER_DESC		"Standalone HSA driver for AMD's GPUs"
 #define KFD_DRIVER_DATE		"20160408"
 #define KFD_DRIVER_MAJOR	2
@@ -99,33 +95,7 @@ int halt_if_hws_hang;
 module_param(halt_if_hws_hang, int, 0644);
 MODULE_PARM_DESC(halt_if_hws_hang, "Halt if HWS hang is detected (0 = off (default), 1 = on)");
 
-
-static int amdkfd_init_completed;
-
-int kgd2kfd_init(unsigned int interface_version,
-		const struct kgd2kfd_calls **g2f)
-{
-	if (!amdkfd_init_completed)
-		return -EPROBE_DEFER;
-
-	/*
-	 * Only one interface version is supported,
-	 * no kfd/kgd version skew allowed.
-	 */
-	if (interface_version != KFD_INTERFACE_VERSION)
-		return -EINVAL;
-
-	*g2f = &kgd2kfd;
-
-	return 0;
-}
-EXPORT_SYMBOL(kgd2kfd_init);
-
-void kgd2kfd_exit(void)
-{
-}
-
-static int __init kfd_module_init(void)
+static int kfd_init(void)
 {
 	int err;
 
@@ -133,7 +103,7 @@ static int __init kfd_module_init(void)
 	if ((sched_policy < KFD_SCHED_POLICY_HWS) ||
 		(sched_policy > KFD_SCHED_POLICY_NO_HWS)) {
 		pr_err("sched_policy has invalid value\n");
-		return -1;
+		return -EINVAL;
 	}
 
 	/* Verify module parameters */
@@ -141,7 +111,7 @@ static int __init kfd_module_init(void)
 		(max_num_of_queues_per_device >
 			KFD_MAX_NUM_OF_QUEUES_PER_DEVICE)) {
 		pr_err("max_num_of_queues_per_device must be between 1 to KFD_MAX_NUM_OF_QUEUES_PER_DEVICE\n");
-		return -1;
+		return -EINVAL;
 	}
 
 	err = kfd_chardev_init();
@@ -164,10 +134,6 @@ static int __init kfd_module_init(void)
 
 	kfd_debugfs_init();
 
-	amdkfd_init_completed = 1;
-
-	dev_info(kfd_device, "Initialized module\n");
-
 	return 0;
 
 err_create_wq:
@@ -179,21 +145,33 @@ static int __init kfd_module_init(void)
 	return err;
 }
 
-static void __exit kfd_module_exit(void)
+static void kfd_exit(void)
 {
-	amdkfd_init_completed = 0;
-
 	kfd_debugfs_fini();
 	kfd_close_peer_direct();
 	kfd_process_destroy_wq();
 	kfd_topology_shutdown();
 	kfd_chardev_exit();
-	pr_info("amdkfd: Removed module\n");
 }
 
-module_init(kfd_module_init);
-module_exit(kfd_module_exit);
+int kgd2kfd_init(unsigned int interface_version,
+		 const struct kgd2kfd_calls **g2f)
+{
+	int err;
 
+	err = kfd_init();
+	if (err)
+		return err;
+	*g2f = &kgd2kfd;
+
+	return 0;
+}
+EXPORT_SYMBOL(kgd2kfd_init);
+
+void kgd2kfd_exit(void)
+{
+	kfd_exit();
+}
 MODULE_AUTHOR(KFD_DRIVER_AUTHOR);
 MODULE_DESCRIPTION(KFD_DRIVER_DESC);
 MODULE_LICENSE("GPL and additional rights");
-- 
2.7.4