From 44bf8704b71f86c4e56c4dbefc2bd40cbb5b269b Mon Sep 17 00:00:00 2001 From: Kalyan Thota Date: Fri, 29 Oct 2021 05:30:19 -0700 Subject: 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 Reviewed-by: Dmitry Baryshkov Reviewed-by: Stephen Boyd Link: https://lore.kernel.org/r/1635510619-6715-1-git-send-email-quic_kalyant@quicinc.com Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 2 +- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 5 ++++- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 8 ++++++++ 3 files changed, 13 insertions(+), 2 deletions(-) (limited to 'drivers/gpu') 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 2b4dc9d852b3..aa75991903a6 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c @@ -45,7 +45,7 @@ (PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2)) #define CTL_SC7280_MASK \ - (BIT(DPU_CTL_ACTIVE_CFG) | BIT(DPU_CTL_FETCH_ACTIVE)) + (BIT(DPU_CTL_ACTIVE_CFG) | BIT(DPU_CTL_FETCH_ACTIVE) | BIT(DPU_CTL_VM_CFG)) #define MERGE_3D_SM8150_MASK (0) 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 4ade44bbd37e..31af04afda7d 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h @@ -179,13 +179,16 @@ enum { /** * CTL sub-blocks - * @DPU_CTL_SPLIT_DISPLAY CTL supports video mode split display + * @DPU_CTL_SPLIT_DISPLAY: CTL supports video mode split display + * @DPU_CTL_FETCH_ACTIVE: Active CTL for fetch HW (SSPPs) + * @DPU_CTL_VM_CFG: CTL config to support multiple VMs * @DPU_CTL_MAX */ enum { DPU_CTL_SPLIT_DISPLAY = 0x1, DPU_CTL_ACTIVE_CFG, DPU_CTL_FETCH_ACTIVE, + DPU_CTL_VM_CFG, DPU_CTL_MAX }; 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); -- cgit v1.2.3