[PATCH] drm/amdgpu: enable paging queue doorbell support v2
Christian König
ckoenig.leichtzumerken at gmail.com
Tue Nov 20 09:54:31 UTC 2018
Am 19.11.18 um 21:08 schrieb Kuehling, Felix:
> Hi Christian,
>
> On 2018-11-19 6:24 a.m., Christian König wrote:
>> Am 15.11.18 um 20:10 schrieb Yang, Philip:
>>> paging queues doorbell index use existing assignment
>>> sDMA_HI_PRI_ENGINE0/1
>>> index, and increase SDMA_DOORBELL_RANGE size from 2 dwords to 4
>>> dwords to
>>> enable the new doorbell index.
>>>
>>> v2: disable paging queue doorbell on Vega10 and Vega12 with SRIOV
>>>
>>> Change-Id: I9adb965f16ee4089d261d9a22231337739184e49
>>> Signed-off-by: Philip Yang <Philip.Yang at amd.com>
>> Acked-by: Christian König <christian.koenig at amd.com>
> This change was superseded by "drm/amdgpu: enable paging queue doorbell
> support v3", which doesn't need to change the doorbell routing and no
> special rules for SRIOV. Instead it uses two pages from the doorbell
> aperture. That's OK, because KFD only uses page 2 and up.
Ah, yeah hadn't seen that patch yet.
Thanks,
Christian.
>
> Regards,
> Felix
>
>
>>> ---
>>> drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c | 2 +-
>>> drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c | 2 +-
>>> drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 26 ++++++++++++++++++--------
>>> 3 files changed, 20 insertions(+), 10 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c
>>> b/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c
>>> index 6f9c54978cc1..0eb42c29ecac 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c
>>> @@ -80,7 +80,7 @@ static void nbio_v6_1_sdma_doorbell_range(struct
>>> amdgpu_device *adev, int instan
>>> if (use_doorbell) {
>>> doorbell_range = REG_SET_FIELD(doorbell_range,
>>> BIF_SDMA0_DOORBELL_RANGE, OFFSET, doorbell_index);
>>> - doorbell_range = REG_SET_FIELD(doorbell_range,
>>> BIF_SDMA0_DOORBELL_RANGE, SIZE, 2);
>>> + doorbell_range = REG_SET_FIELD(doorbell_range,
>>> BIF_SDMA0_DOORBELL_RANGE, SIZE, 4);
>>> } else
>>> doorbell_range = REG_SET_FIELD(doorbell_range,
>>> BIF_SDMA0_DOORBELL_RANGE, SIZE, 0);
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
>>> b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
>>> index f8cee95d61cc..9342ee03d7d4 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
>>> @@ -76,7 +76,7 @@ static void nbio_v7_4_sdma_doorbell_range(struct
>>> amdgpu_device *adev, int instan
>>> if (use_doorbell) {
>>> doorbell_range = REG_SET_FIELD(doorbell_range,
>>> BIF_SDMA0_DOORBELL_RANGE, OFFSET, doorbell_index);
>>> - doorbell_range = REG_SET_FIELD(doorbell_range,
>>> BIF_SDMA0_DOORBELL_RANGE, SIZE, 2);
>>> + doorbell_range = REG_SET_FIELD(doorbell_range,
>>> BIF_SDMA0_DOORBELL_RANGE, SIZE, 4);
>>> } else
>>> doorbell_range = REG_SET_FIELD(doorbell_range,
>>> BIF_SDMA0_DOORBELL_RANGE, SIZE, 0);
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
>>> b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
>>> index f4490cdd9804..1f19f15bb171 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
>>> @@ -925,11 +925,9 @@ static void sdma_v4_0_page_resume(struct
>>> amdgpu_device *adev, unsigned int i)
>>> OFFSET, ring->doorbell_index);
>>> WREG32_SDMA(i, mmSDMA0_PAGE_DOORBELL, doorbell);
>>> WREG32_SDMA(i, mmSDMA0_PAGE_DOORBELL_OFFSET, doorbell_offset);
>>> - /* TODO: enable doorbell support */
>>> - /*adev->nbio_funcs->sdma_doorbell_range(adev, i,
>>> ring->use_doorbell,
>>> - ring->doorbell_index);*/
>>> - sdma_v4_0_ring_set_wptr(ring);
>>> + /* paging queue doorbell index is already enabled at
>>> sdma_v4_0_gfx_resume */
>>> + sdma_v4_0_page_ring_set_wptr(ring);
>>> /* set minor_ptr_update to 0 after wptr programed */
>>> WREG32_SDMA(i, mmSDMA0_PAGE_MINOR_PTR_UPDATE, 0);
>>> @@ -1504,9 +1502,6 @@ static int sdma_v4_0_sw_init(void *handle)
>>> ring->ring_obj = NULL;
>>> ring->use_doorbell = true;
>>> - DRM_INFO("use_doorbell being set to: [%s]\n",
>>> - ring->use_doorbell?"true":"false");
>>> -
>>> if (adev->asic_type == CHIP_VEGA10)
>>> ring->doorbell_index = (i == 0) ?
>>> (AMDGPU_VEGA10_DOORBELL64_sDMA_ENGINE0 << 1) //get
>>> DWORD offset
>>> @@ -1516,6 +1511,8 @@ static int sdma_v4_0_sw_init(void *handle)
>>> (AMDGPU_DOORBELL64_sDMA_ENGINE0 << 1) //get DWORD
>>> offset
>>> : (AMDGPU_DOORBELL64_sDMA_ENGINE1 << 1); // get
>>> DWORD offset
>>> + DRM_DEBUG("use_doorbell being set to: [%s] doorbell index
>>> %d\n",
>>> + ring->use_doorbell?"true":"false", ring->doorbell_index);
>>> sprintf(ring->name, "sdma%d", i);
>>> r = amdgpu_ring_init(adev, ring, 1024,
>>> @@ -1529,7 +1526,20 @@ static int sdma_v4_0_sw_init(void *handle)
>>> if (adev->sdma.has_page_queue) {
>>> ring = &adev->sdma.instance[i].page;
>>> ring->ring_obj = NULL;
>>> - ring->use_doorbell = false;
>>> + if (!amdgpu_sriov_vf(adev) || adev->asic_type ==
>>> CHIP_VEGA20)
>>> + ring->use_doorbell = true;
>>> +
>>> + if (adev->asic_type == CHIP_VEGA10)
>>> + ring->doorbell_index = (i == 0) ?
>>> + (AMDGPU_VEGA10_DOORBELL64_sDMA_HI_PRI_ENGINE0 << 1)
>>> + : (AMDGPU_VEGA10_DOORBELL64_sDMA_HI_PRI_ENGINE1
>>> << 1);
>>> + else
>>> + ring->doorbell_index = (i == 0) ?
>>> + (AMDGPU_DOORBELL64_sDMA_HI_PRI_ENGINE0 << 1)
>>> + : (AMDGPU_DOORBELL64_sDMA_HI_PRI_ENGINE1 << 1);
>>> +
>>> + DRM_DEBUG("paging queue doorbell being set to: [%s]
>>> doorbell index %d\n",
>>> + ring->use_doorbell?"true":"false",
>>> ring->doorbell_index);
>>> sprintf(ring->name, "page%d", i);
>>> r = amdgpu_ring_init(adev, ring, 1024,
>> _______________________________________________
>> amd-gfx mailing list
>> amd-gfx at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
> _______________________________________________
> amd-gfx mailing list
> amd-gfx at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
More information about the amd-gfx
mailing list