linux-kernel - [PATCH 08/83] drm/radeon: Add calls to initialize and finalize kfd from radeon

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Date:	Fri, 11 Jul 2014 00:50:08 +0300
From:	Oded Gabbay <oded.gabbay@...il.com>
To:	David Airlie <airlied@...ux.ie>,
	Alex Deucher <alexander.deucher@....com>,
	Jerome Glisse <j.glisse@...il.com>
Cc:	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	John Bridgman <John.Bridgman@....com>,
	Andrew Lewycky <Andrew.Lewycky@....com>,
	Joerg Roedel <joro@...tes.org>,
	Oded Gabbay <oded.gabbay@....com>,
	Christian König <christian.koenig@....com>
Subject: [PATCH 08/83] drm/radeon: Add calls to initialize and finalize kfd from radeon

The KFD driver should be loaded when the radeon driver is loaded and
should be finalized when the radeon driver is removed.

This patch adds a function call to initialize kfd from radeon_init
and a function call to finalize kfd from radeon_exit.

If the KFD driver is not present in the system, the initialize call
fails and the radeon driver continues normally.

This patch also adds calls to probe, initialize and finalize a kfd device
per radeon device using the kgd-->kfd interface.

Signed-off-by: Oded Gabbay <oded.gabbay@....com>
---
 drivers/gpu/drm/radeon/radeon_drv.c | 6 ++++++
 drivers/gpu/drm/radeon/radeon_kms.c | 9 +++++++++
 2 files changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index cb14213..88a45a0 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -151,6 +151,9 @@ static inline void radeon_register_atpx_handler(void) {}
 static inline void radeon_unregister_atpx_handler(void) {}
 #endif
 
+extern bool radeon_kfd_init(void);
+extern void radeon_kfd_fini(void);
+
 int radeon_no_wb;
 int radeon_modeset = -1;
 int radeon_dynclks = -1;
@@ -630,12 +633,15 @@ static int __init radeon_init(void)
 #endif
 	}
 
+	radeon_kfd_init();
+
 	/* let modprobe override vga console setting */
 	return drm_pci_init(driver, pdriver);
 }
 
 static void __exit radeon_exit(void)
 {
+	radeon_kfd_fini();
 	drm_pci_exit(driver, pdriver);
 	radeon_unregister_atpx_handler();
 }
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 35d9318..0748284 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -34,6 +34,10 @@
 #include <linux/slab.h>
 #include <linux/pm_runtime.h>
 
+extern void radeon_kfd_device_probe(struct radeon_device *rdev);
+extern void radeon_kfd_device_init(struct radeon_device *rdev);
+extern void radeon_kfd_device_fini(struct radeon_device *rdev);
+
 #if defined(CONFIG_VGA_SWITCHEROO)
 bool radeon_has_atpx(void);
 #else
@@ -63,6 +67,8 @@ int radeon_driver_unload_kms(struct drm_device *dev)
 
 	pm_runtime_get_sync(dev->dev);
 
+	radeon_kfd_device_fini(rdev);
+
 	radeon_acpi_fini(rdev);
 	
 	radeon_modeset_fini(rdev);
@@ -142,6 +148,9 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
 				"Error during ACPI methods call\n");
 	}
 
+	radeon_kfd_device_probe(rdev);
+	radeon_kfd_device_init(rdev);
+
 	if (radeon_is_px(dev)) {
 		pm_runtime_use_autosuspend(dev->dev);
 		pm_runtime_set_autosuspend_delay(dev->dev, 5000);
-- 
1.9.1

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