[Intel-gfx] [PATCH i-g-t v4 06/11] lib/igt_kms: Add support for the OUT_FENCE_PTR property

[Robert Foss]

On 2017-02-01 05:40 AM, Brian Starkey wrote:
> On Tue, Jan 31, 2017 at 08:25:15PM -0500, Robert Foss wrote:
>> From: Gustavo Padovan <gustavo.padovan at collabora.co.uk>
>>
>> Add support for the OUT_FENCE_PTR property to enable setting out
>> fences for
>> atomic commits.
>>
>> Signed-off-by: Gustavo Padovan <gustavo.padovan at collabora.co.uk>
>> Signed-off-by: Robert Foss <robert.foss at collabora.com>
>> ---
>> lib/igt_kms.c | 23 ++++++++++++++++++++++-
>> lib/igt_kms.h |  6 +++++-
>> 2 files changed, 27 insertions(+), 2 deletions(-)
>>
>> diff --git a/lib/igt_kms.c b/lib/igt_kms.c
>> index 9b60d74a..7bf3fa3a 100644
>> --- a/lib/igt_kms.c
>> +++ b/lib/igt_kms.c
>> @@ -179,7 +179,8 @@ const char
>> *igt_crtc_prop_names[IGT_NUM_CRTC_PROPS] = {
>>     "DEGAMMA_LUT",
>>     "GAMMA_LUT",
>>     "MODE_ID",
>> -    "ACTIVE"
>> +    "ACTIVE",
>> +    "OUT_FENCE_PTR"
>> };
>>
>> const char *igt_connector_prop_names[IGT_NUM_CONNECTOR_PROPS] = {
>> @@ -2385,6 +2386,14 @@ static void
>> igt_atomic_prepare_crtc_commit(igt_pipe_t *pipe_obj, drmModeAtomicRe
>>         igt_atomic_populate_crtc_req(req, pipe_obj, IGT_CRTC_ACTIVE,
>> !!output);
>>     }
>>
>> +    pipe_obj->out_fence_fd = -1;
>> +    if (pipe_obj->out_fence_requested)
>> +    {
>> +        pipe_obj->out_fence_requested = false;
>> +        igt_atomic_populate_crtc_req(req, pipe_obj,
>> IGT_CRTC_OUT_FENCE_PTR,
>> +            (uint64_t)(uintptr_t) &pipe_obj->out_fence_fd);
>> +    }
>> +
>>     /*
>>      *    TODO: Add all crtc level properties here
>>      */
>> @@ -2959,6 +2968,18 @@ void igt_plane_set_rotation(igt_plane_t *plane,
>> igt_rotation_t rotation)
>>     plane->rotation_changed = true;
>> }
>>
>> +/**
>> + * igt_pipe_request_out_fence:
>> + * @pipe: pipe pointer to which background color to be set
>
> Wrong description here
>
> -Brian

Ack, fixed in v5.

Rob.

>
>> + *
>> + * Marks this pipe for requesting an out fence at the next atomic commit
>> + * will contain the fd number of the out fence created by KMS.
>> + */
>> +void igt_pipe_request_out_fence(igt_pipe_t *pipe)
>> +{
>> +    pipe->out_fence_requested = true;
>> +}
>> +
>> void
>> igt_pipe_set_degamma_lut(igt_pipe_t *pipe, void *ptr, size_t length)
>> {
>> diff --git a/lib/igt_kms.h b/lib/igt_kms.h
>> index 8acad8ef..6754d00e 100644
>> --- a/lib/igt_kms.h
>> +++ b/lib/igt_kms.h
>> @@ -94,6 +94,7 @@ enum igt_atomic_crtc_properties {
>>        IGT_CRTC_GAMMA_LUT,
>>        IGT_CRTC_MODE_ID,
>>        IGT_CRTC_ACTIVE,
>> +       IGT_CRTC_OUT_FENCE_PTR,
>>        IGT_NUM_CRTC_PROPS
>> };
>>
>> @@ -341,6 +342,9 @@ struct igt_pipe {
>>
>>     uint64_t mode_blob;
>>     bool mode_changed;
>> +
>> +    int32_t out_fence_fd;
>> +    bool out_fence_requested;
>> };
>>
>> typedef struct {
>> @@ -394,7 +398,7 @@ static inline bool
>> igt_plane_supports_rotation(igt_plane_t *plane)
>> {
>>     return plane->rotation_property != 0;
>> }
>> -
>> +void igt_pipe_request_out_fence(igt_pipe_t *pipe);
>> void igt_pipe_set_degamma_lut(igt_pipe_t *pipe, void *ptr, size_t
>> length);
>> void igt_pipe_set_ctm_matrix(igt_pipe_t *pipe, void *ptr, size_t length);
>> void igt_pipe_set_gamma_lut(igt_pipe_t *pipe, void *ptr, size_t length);
>> --
>> 2.11.0.453.g787f75f05
>>