lkml.org 
[lkml]   [2014]   [Jul]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 08/83] drm/radeon: Add calls to initialize and finalize kfd from radeon
On 11/07/14 19:36, Jerome Glisse wrote:
> On Fri, Jul 11, 2014 at 12:50:08AM +0300, Oded Gabbay wrote:
>> 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@amd.com>
>
> It might be nice to allow to build radeon without HSA so i think an
> CONFIG_HSA should be added and have other thing depends on it.
> Otherwise this one is.
>
> Reviewed-by: Jérôme Glisse <jglisse@redhat.com>
>
We do allow it :)
There is no problem building radeon without the kfd. In that case, when radeon
finds out that kfd is not available, it simply moves on with its initialization
procedure.
Oded
>
>> ---
>> 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
>>

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2014-07-19 11:41    [W:0.323 / U:9.912 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site