On 2015å¹´11æ10æ¥ 14:46, Heiko Stuebner wrote:
> Hi Mark,
>
> Am Dienstag, 10. November 2015, 14:17:43 schrieb Mark yao:
>> Hi Heiko
>> I don't think this patch is needed for rockchip drm, since
>> rockchip drm only use kms.
>> I saw the discussion about ("drm/exynos: create a fake mmap offset with
>> gem creation"),
>> Inki said that: "This patch makes drm_gem_create_mmap_offset to be
>> called even in case of
>> not using dumb* interfaces. I.e., exynos_drm_gem_create_ioctl ->
>> exynos_drm_gem_mmap"
>>
>> So I think this patch doesn't make sense for rockchip drm.
> ok :-) . I'm not that knowledgable when it comes to drm and just found that
> similar change in exynos while searching for the dma issue.
>
> So we can drop this patch and you could just merge patch2 as well as
>
> [RESEND PATCH] drm/rockchip: vop: Correct enabled clocks during setup
>
> from Sjoerd and send these two to Dave as fixes for 4.4?
>
Right, that patch is needed, and also I want to land two patch:
[RESEND PATCH] drm/rockchip: import dma_buf to gem
[PATCH] Revert "drm/rockchip: Convert the probe function to the
generic drm_of_component_probe()"
> Thanks
> Heiko
>
>>
>> On 2015å¹´11æ10æ¥ 03:50, Heiko Stuebner wrote:
>>> Similarly to the equivalent exynos-fix in commit 48cf53f4343a
>>> ("drm/exynos: create a fake mmap offset with gem creation") the rockchip
>>> drm driver also calls the drm_gem_create_mmap_offset fake-offset creation
>>> on every invocation of rockchip_gem_dumb_map_offset.
>>>
>>> Move that to the creation of the gem to only create that offset once.
>>>
>>> Signed-off-by: Heiko Stuebner <heiko at sntech.de>
>>> ---
>>> drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 12 ++++++------
>>> 1 file changed, 6 insertions(+), 6 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
> b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
>>> index 4ab2f20..e50d113 100644
>>> --- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
>>> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
>>> @@ -126,8 +126,14 @@ struct rockchip_gem_object *
>>> if (ret)
>>> goto err_free_rk_obj;
>>>
>>> + ret = drm_gem_create_mmap_offset(obj);
>>> + if (ret)
>>> + goto err_free_buf;
>>> +
>>> return rk_obj;
>>>
>>> +err_free_buf:
>>> + rockchip_gem_free_buf(rk_obj);
>>> err_free_rk_obj:
>>> kfree(rk_obj);
>>> return ERR_PTR(ret);
>>> @@ -196,7 +202,6 @@ int rockchip_gem_dumb_map_offset(struct drm_file
> *file_priv,
>>> uint64_t *offset)
>>> {
>>> struct drm_gem_object *obj;
>>> - int ret;
>>>
>>> obj = drm_gem_object_lookup(dev, file_priv, handle);
>>> if (!obj) {
>>> @@ -204,14 +209,9 @@ int rockchip_gem_dumb_map_offset(struct drm_file
> *file_priv,
>>> return -EINVAL;
>>> }
>>>
>>> - ret = drm_gem_create_mmap_offset(obj);
>>> - if (ret)
>>> - goto out;
>>> -
>>> *offset = drm_vma_node_offset_addr(&obj->vma_node);
>>> DRM_DEBUG_KMS("offset = 0x%llx\n", *offset);
>>>
>>> -out:
>>> drm_gem_object_unreference_unlocked(obj);
>>>
>>> return 0;
>>
>>
>
>
>
--
ï¼ark Yao
