For each LM there is at max 1 peer LM which can be driven by the same CTL, so there no need to have a mask instead of just an ID of the peer LM.
Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org --- .../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 2 +- .../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 4 +-- drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c | 30 +++++-------------- 3 files changed, 11 insertions(+), 25 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c index e4444452759c..f21f630af476 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c @@ -497,7 +497,7 @@ static const struct dpu_lm_sub_blks sdm845_lm_sblk = { .features = _fmask, \ .sblk = _sblk, \ .pingpong = _pp, \ - .lm_pair_mask = (1 << _lmpair), \ + .lm_pair = _lmpair, \ .dspp = _dspp \ }
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h index ea4647d21a20..08864f0addc4 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h @@ -494,14 +494,14 @@ struct dpu_sspp_cfg { * @features bit mask identifying sub-blocks/features * @sblk: LM Sub-blocks information * @pingpong: ID of connected PingPong, PINGPONG_MAX if unsupported - * @lm_pair_mask: Bitmask of LMs that can be controlled by same CTL + * @lm_pair: ID of LM that can be controlled by same CTL */ struct dpu_lm_cfg { DPU_HW_BLK_INFO; const struct dpu_lm_sub_blks *sblk; u32 pingpong; u32 dspp; - unsigned long lm_pair_mask; + unsigned long lm_pair; };
/** diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c index dbcf4929810b..969286c6f104 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c @@ -150,28 +150,19 @@ static bool _dpu_rm_needs_split_display(const struct msm_display_topology *top) }
/** - * _dpu_rm_check_lm_peer - check if a mixer is a peer of the primary + * _dpu_rm_get_lm_peer - get the id of a mixer which is a peer of the primary * @rm: dpu resource manager handle * @primary_idx: index of primary mixer in rm->mixer_blks[] - * @peer_idx: index of other mixer in rm->mixer_blks[] - * Return: true if rm->mixer_blks[peer_idx] is a peer of - * rm->mixer_blks[primary_idx] */ -static bool _dpu_rm_check_lm_peer(struct dpu_rm *rm, int primary_idx, - int peer_idx) +static int _dpu_rm_get_lm_peer(struct dpu_rm *rm, int primary_idx) { const struct dpu_lm_cfg *prim_lm_cfg; - const struct dpu_lm_cfg *peer_cfg;
prim_lm_cfg = to_dpu_hw_mixer(rm->mixer_blks[primary_idx])->cap; - peer_cfg = to_dpu_hw_mixer(rm->mixer_blks[peer_idx])->cap;
- if (!test_bit(peer_cfg->id, &prim_lm_cfg->lm_pair_mask)) { - DPU_DEBUG("lm %d not peer of lm %d\n", peer_cfg->id, - peer_cfg->id); - return false; - } - return true; + if (prim_lm_cfg->lm_pair >= LM_0 && prim_lm_cfg->lm_pair < LM_MAX) + return prim_lm_cfg->lm_pair - LM_0; + return -EINVAL; }
static int _dpu_rm_reserve_lms(struct dpu_rm *rm, @@ -205,17 +196,12 @@ static int _dpu_rm_reserve_lms(struct dpu_rm *rm, ++lm_count;
/* Valid primary mixer found, find matching peers */ - for (j = i + 1; j < ARRAY_SIZE(rm->mixer_blks) && - lm_count < reqs->topology.num_lm; j++) { + j = _dpu_rm_get_lm_peer(rm, i); + /* ignore the peer if there is an error or if the peer was already processed */ + if (j > i) { if (!rm->mixer_blks[j]) continue;
- if (!_dpu_rm_check_lm_peer(rm, i, j)) { - DPU_DEBUG("lm %d not peer of lm %d\n", LM_0 + j, - LM_0 + i); - continue; - } - if (reserved_by_other(global_state->mixer_to_enc_id, j, enc_id)) { DPU_DEBUG("lm %d already reserved\n", j + LM_0); continue;