On Thu, Jul 25, 2013 at 7:52 PM, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
> On Thu, Jul 25, 2013 at 7:26 PM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote:
>> On Thu, Jul 25, 2013 at 07:15:03PM +0200, Sedat Dilek wrote:
>>> On Thu, Jul 25, 2013 at 7:01 PM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote:
>>> > Basically boils down to either an object allocation failure or mmaping
>>> > failure. I think dmesg with drm.debug=7 is the next step.
>>>
>>> Attached! Thanks for taking care.
>>
>> Hmm, looks like i915_gem_map_gtt fails, but no reason given, so can you
>> please apply this for more debug:
>>
>> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
>> index 0563661..34e09bf 100644
>> --- a/drivers/gpu/drm/i915/i915_gem.c
>> +++ b/drivers/gpu/drm/i915/i915_gem.c
>> @@ -1630,24 +1630,29 @@ i915_gem_mmap_gtt(struct drm_file *file,
>>
>> obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
>> if (&obj->base == NULL) {
>> + DRM_DRIVER_DEBUG("Unknown object handle %d\n", handle);
>> ret = -ENOENT;
>> goto unlock;
>> }
>>
>> if (obj->base.size > dev_priv->gtt.mappable_end) {
>> + DRM_DRIVER_DEBUG("Object (%d) larger than mappable aperture (%d) > %d\n",
>> + (int)obj->base.size, (int)dev_priv->gtt.mappable_end);
>> ret = -E2BIG;
>> goto out;
>> }
>>
>> if (obj->madv != I915_MADV_WILLNEED) {
>> - DRM_ERROR("Attempting to mmap a purgeable buffer\n");
>> + DRM_DRIVER_DEBUG("Attempting to mmap a purgeable buffer\n");
>> ret = -EINVAL;
>> goto out;
>> }
>>
>> ret = i915_gem_object_create_mmap_offset(obj);
>> - if (ret)
>> + if (ret) {
>> + DRM_DRIVER_DEBUG("Failed to allocate mmap offset (ret=%d)\n", ret);
>> goto out;
>> + }
>>
>> *offset = (u64)obj->base.map_list.hash.key << PAGE_SHIFT;
>>
>> --
>
> This does not apply... After refreshing and some cleanups... does not build:
>
> $ LANG=C LC_ALL=C make M=drivers/gpu/drm/i915
> LD drivers/gpu/drm/i915/built-in.o
> CC [M] drivers/gpu/drm/i915/i915_drv.o
> CC [M] drivers/gpu/drm/i915/i915_dma.o
> CC [M] drivers/gpu/drm/i915/i915_irq.o
> CC [M] drivers/gpu/drm/i915/i915_debugfs.o
> CC [M] drivers/gpu/drm/i915/i915_gpu_error.o
> CC [M] drivers/gpu/drm/i915/i915_suspend.o
> CC [M] drivers/gpu/drm/i915/i915_gem.o
> drivers/gpu/drm/i915/i915_gem.c: In function 'i915_gem_mmap_gtt':
> drivers/gpu/drm/i915/i915_gem.c:1538:3: error: implicit declaration of
> function 'DRM_DRIVER_DEBUG' [-Werror=implicit-function-declaration]
> cc1: some warnings being treated as errors
> make[1]: *** [drivers/gpu/drm/i915/i915_gem.o] Error 1
> make: *** [_module_drivers/gpu/drm/i915] Error 2
>
F*ck. Wrong patch refreshed.
- S.
> - Sedat -
>
>> Chris Wilson, Intel Open Source Technology Centre
>> --
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Attachment:
0001-i915-Debug-test-patch-to-see-why-i915_gem_map_gtt-fa.patch
Description: Binary data
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