diff options
| author | Kalyan Thota <quic_kalyant@quicinc.com> | 2021-10-29 05:30:19 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2021-12-08 10:08:25 -0800 |
| commit | 44bf8704b71f86c4e56c4dbefc2bd40cbb5b269b (patch) | |
| tree | 9ef75a87d0c674c7eb8a8d911c1731f3df9d40a1 /drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | |
| parent | 92cb1bedde9dba78d802fe2510949743a2581aed (diff) | |
| download | linux-next-44bf8704b71f86c4e56c4dbefc2bd40cbb5b269b.tar.gz | |
drm/msm/disp/dpu1: set default group ID for CTL.
New required programming in CTL for SC7280. Group ID informs
HW of which VM owns that CTL. Force this group ID to
default/disabled until virtualization support is enabled in SW.
Changes in v1:
- Fix documentation and add descritpion for the change (Stephen)
Signed-off-by: Kalyan Thota <quic_kalyant@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1635510619-6715-1-git-send-email-quic_kalyant@quicinc.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c index 64740ddb983e..02da9ecf71f1 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c @@ -36,6 +36,7 @@ #define MERGE_3D_IDX 23 #define INTF_IDX 31 #define CTL_INVALID_BIT 0xffff +#define CTL_DEFAULT_GROUP_ID 0xf static const u32 fetch_tbl[SSPP_MAX] = {CTL_INVALID_BIT, 16, 17, 18, 19, CTL_INVALID_BIT, CTL_INVALID_BIT, CTL_INVALID_BIT, CTL_INVALID_BIT, 0, @@ -498,6 +499,13 @@ static void dpu_hw_ctl_intf_cfg_v1(struct dpu_hw_ctl *ctx, u32 intf_active = 0; u32 mode_sel = 0; + /* CTL_TOP[31:28] carries group_id to collate CTL paths + * per VM. Explicitly disable it until VM support is + * added in SW. Power on reset value is not disable. + */ + if ((test_bit(DPU_CTL_VM_CFG, &ctx->caps->features))) + mode_sel = CTL_DEFAULT_GROUP_ID << 28; + if (cfg->intf_mode_sel == DPU_CTL_MODE_SEL_CMD) mode_sel |= BIT(17); |