Re: [PATCH 07/10] drm/msm/dpu: Add SM6375 support

From: Dmitry Baryshkov
Date: Sat Feb 11 2023 - 11:47:35 EST

On 11/02/2023 14:26, Konrad Dybcio wrote:
Add basic SM6375 support to the DPU1 driver to enable display output.

Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
---
.../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 120 ++++++++++++++++++
.../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 1 +
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 1 +
drivers/gpu/drm/msm/msm_mdss.c | 1 +
4 files changed, 123 insertions(+)

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 ba0bc795e5ff..327aa21f01fc 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
@@ -383,6 +383,24 @@ static const struct dpu_caps sm6350_dpu_caps = {
.pixel_ram_size = DEFAULT_PIXEL_RAM_SIZE,
};
+static const struct dpu_caps sm6375_dpu_caps = {
+ .max_mixer_width = 2048,

It looks like we got this wrong for sm6115, I

+ .max_mixer_blendstages = 0x4,
+ .qseed_type = DPU_SSPP_SCALER_QSEED3LITE,

QSEED4

v3lite with the version >= 3.0 is v4. We should rework this to be more sensible and easy to support.

+ .smart_dma_rev = DPU_SSPP_SMART_DMA_V2, /* TODO: v2.5 */
+ .ubwc_version = DPU_HW_UBWC_VER_20,
+ .has_dim_layer = true,
+ .has_idle_pc = true,
+ /*
+ * There is *NO* 3DMERGE hw, but we *need* to set this property to true,
+ * because SM6375 includes newer hardware that requires a different reset
+ * sequence and it is executed based on this confusingly named variable..
+ */
+ .has_3d_merge = true,
+ .max_linewidth = 2160,
+ .pixel_ram_size = DEFAULT_PIXEL_RAM_SIZE,
+};
+
static const struct dpu_caps sm8150_dpu_caps = {
.max_mixer_width = DEFAULT_DPU_OUTPUT_LINE_WIDTH,
.max_mixer_blendstages = 0xb,
@@ -592,6 +610,19 @@ static const struct dpu_mdp_cfg sm6350_mdp[] = {
},
};
+static const struct dpu_mdp_cfg sm6375_mdp[] = {

sm6116_mdp ?

+ {
+ .name = "top_0", .id = MDP_TOP,
+ .base = 0x0, .len = 0x494,
+ .features = 0,
+ .highest_bank_bit = 0x1,
+ .clk_ctrls[DPU_CLK_CTRL_VIG0] = {
+ .reg_off = 0x2ac, .bit_off = 0},
+ .clk_ctrls[DPU_CLK_CTRL_DMA0] = {
+ .reg_off = 0x2ac, .bit_off = 8},
+ },
+};
+
static const struct dpu_mdp_cfg sc8180x_mdp[] = {
{
.name = "top_0", .id = MDP_TOP,
@@ -1577,6 +1608,19 @@ static const struct dpu_lm_cfg sm6350_lm[] = {
&sc7180_lm_sblk, PINGPONG_1, LM_0, 0),
};
+static const struct dpu_lm_sub_blks sm6375_lm_sblk = {

qcm2290_lm_sblk after we fix the width there.

+ .maxwidth = 2048,
+ .maxblendstages = 4, /* excluding base layer */
+ .blendstage_base = { /* offsets relative to mixer base */
+ 0x20, 0x38, 0x50, 0x68
+ },
+};
+
+static const struct dpu_lm_cfg sm6375_lm[] = {

qcm2290_lm

+ LM_BLK("lm_0", LM_0, 0x44000, MIXER_QCM2290_MASK,
+ &sm6375_lm_sblk, PINGPONG_0, 0, DSPP_0),
+};
+
/* SM8150 */
static const struct dpu_lm_cfg sm8150_lm[] = {
@@ -1984,6 +2028,11 @@ static const struct dpu_intf_cfg sm6350_intf[] = {
INTF_BLK("intf_1", INTF_1, 0x6a800, 0x2c0, INTF_DSI, 0, 35, INTF_SC7180_MASK, MDP_SSPP_TOP0_INTR, 26, 27),
};
+static const struct dpu_intf_cfg sm6375_intf[] = {

ack, size difference from sm6115/qcm2290

+ INTF_BLK("intf_0", INTF_0, 0x00000, 0x2c0, INTF_NONE, 0, 0, 0, 0, 0, 0),
+ INTF_BLK("intf_1", INTF_1, 0x6a800, 0x2c0, INTF_DSI, 0, 24, INTF_SC7280_MASK, MDP_SSPP_TOP0_INTR, 26, 27),
+};
+
static const struct dpu_intf_cfg sm8150_intf[] = {
INTF_BLK("intf_0", INTF_0, 0x6A000, 0x280, INTF_DP, 0, 24, INTF_SC7180_MASK, MDP_SSPP_TOP0_INTR, 24, 25),
INTF_BLK("intf_1", INTF_1, 0x6A800, 0x280, INTF_DSI, 0, 24, INTF_SC7180_MASK, MDP_SSPP_TOP0_INTR, 26, 27),
@@ -2171,6 +2220,26 @@ static const struct dpu_reg_dma_cfg sc8280xp_regdma = {
.clk_ctrl = DPU_CLK_CTRL_REG_DMA,
};
+static const struct dpu_vbif_cfg sm6375_vbif[] = {
+ {
+ .name = "vbif_0", .id = VBIF_RT,
+ .base = 0, .len = 0x2008,

Ugh

+ .features = BIT(DPU_VBIF_QOS_REMAP),
+ .xin_halt_timeout = 0x4000,
+ .qos_rp_remap_size = 0x40,
+ .qos_rt_tbl = {
+ .npriority_lvl = ARRAY_SIZE(sdm845_rt_pri_lvl),
+ .priority_lvl = sdm845_rt_pri_lvl,
+ },
+ .qos_nrt_tbl = {
+ .npriority_lvl = ARRAY_SIZE(sdm845_nrt_pri_lvl),
+ .priority_lvl = sdm845_nrt_pri_lvl,
+ },
+ .memtype_count = 14,
+ .memtype = {3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3},
+ },
+};
+
static const struct dpu_reg_dma_cfg sdm845_regdma = {
.base = 0x0, .version = 0x1, .trigger_sel_off = 0x119c
};
@@ -2460,6 +2529,34 @@ static const struct dpu_perf_cfg sm6350_perf_data = {
.bw_inefficiency_factor = 120,
};
+static const struct dpu_perf_cfg sm6375_perf_data = {
+ .max_bw_low = 5200000,
+ .max_bw_high = 6200000,
+ .min_core_ib = 2500000,
+ .min_llcc_ib = 0,
+ .min_dram_ib = 1600000,
+ .min_prefill_lines = 24,
+ /* TODO: confirm danger_lut_tbl */
+ .danger_lut_tbl = {0xffff, 0xffff, 0x0, 0x0, 0xffff},
+ .qos_lut_tbl = {
+ {.nentry = ARRAY_SIZE(sm6350_qos_linear),
+ .entries = sm6350_qos_linear
+ },
+ {.nentry = ARRAY_SIZE(sm6350_qos_macrotile),
+ .entries = sm6350_qos_macrotile
+ },
+ {.nentry = ARRAY_SIZE(sc7180_qos_nrt),
+ .entries = sc7180_qos_nrt
+ },
+ },
+ .cdp_cfg = {
+ {.rd_enable = 1, .wr_enable = 1},
+ {.rd_enable = 1, .wr_enable = 0}
+ },
+ .clk_inefficiency_factor = 105,
+ .bw_inefficiency_factor = 120,
+};
+
static const struct dpu_perf_cfg sm8150_perf_data = {
.max_bw_low = 12800000,
.max_bw_high = 12800000,
@@ -2804,6 +2901,28 @@ static const struct dpu_mdss_cfg sm6350_dpu_cfg = {
.mdss_irqs = IRQ_SC7180_MASK,
};
+static const struct dpu_mdss_cfg sm6375_dpu_cfg = {
+ .caps = &sm6350_dpu_caps,
+ .mdp_count = ARRAY_SIZE(sm6375_mdp),
+ .mdp = sm6375_mdp,
+ .ctl_count = ARRAY_SIZE(qcm2290_ctl),
+ .ctl = qcm2290_ctl,
+ .sspp_count = ARRAY_SIZE(sm6115_sspp),
+ .sspp = sm6115_sspp,
+ .mixer_count = ARRAY_SIZE(sm6375_lm),
+ .mixer = sm6375_lm,
+ .dspp_count = ARRAY_SIZE(qcm2290_dspp),
+ .dspp = qcm2290_dspp,
+ .pingpong_count = ARRAY_SIZE(qcm2290_pp),
+ .pingpong = qcm2290_pp,
+ .intf_count = ARRAY_SIZE(sm6375_intf),
+ .intf = sm6375_intf,
+ .vbif_count = ARRAY_SIZE(sm6375_vbif),
+ .vbif = sm6375_vbif,
+ .perf = &sm6375_perf_data,
+ .mdss_irqs = IRQ_SC7180_MASK,
+};
+
static const struct dpu_mdss_cfg sm8150_dpu_cfg = {
.caps = &sm8150_dpu_caps,
.mdp_count = ARRAY_SIZE(sdm845_mdp),
@@ -3049,6 +3168,7 @@ static const struct dpu_mdss_hw_cfg_handler cfg_handler[] = {
{ .hw_rev = DPU_HW_VER_630, .dpu_cfg = &sm6115_dpu_cfg},
{ .hw_rev = DPU_HW_VER_640, .dpu_cfg = &sm6350_dpu_cfg},
{ .hw_rev = DPU_HW_VER_650, .dpu_cfg = &qcm2290_dpu_cfg},
+ { .hw_rev = DPU_HW_VER_690, .dpu_cfg = &sm6375_dpu_cfg},
{ .hw_rev = DPU_HW_VER_700, .dpu_cfg = &sm8350_dpu_cfg},
{ .hw_rev = DPU_HW_VER_720, .dpu_cfg = &sc7280_dpu_cfg},
{ .hw_rev = DPU_HW_VER_800, .dpu_cfg = &sc8280xp_dpu_cfg},
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 cbf21613e121..a22b5965acfe 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
@@ -47,6 +47,7 @@
#define DPU_HW_VER_630 DPU_HW_VER(6, 3, 0) /* sm6115|sm4250 */
#define DPU_HW_VER_640 DPU_HW_VER(6, 4, 0) /* sm6350 */
#define DPU_HW_VER_650 DPU_HW_VER(6, 5, 0) /* qcm2290|sm4125 */
+#define DPU_HW_VER_690 DPU_HW_VER(6, 9, 0) /* sm6375 */
#define DPU_HW_VER_700 DPU_HW_VER(7, 0, 0) /* sm8350 */
#define DPU_HW_VER_720 DPU_HW_VER(7, 2, 0) /* sc7280 */
#define DPU_HW_VER_800 DPU_HW_VER(8, 0, 0) /* sc8280xp */
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index ebfbbd2d105e..fd561974a6b1 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -1307,6 +1307,7 @@ static const struct of_device_id dpu_dt_match[] = {
{ .compatible = "qcom,sc8280xp-dpu", },
{ .compatible = "qcom,sm6115-dpu", },
{ .compatible = "qcom,sm6350-dpu", },
+ { .compatible = "qcom,sm6375-dpu", },
{ .compatible = "qcom,sm8150-dpu", },
{ .compatible = "qcom,sm8250-dpu", },
{ .compatible = "qcom,sm8350-dpu", },
diff --git a/drivers/gpu/drm/msm/msm_mdss.c b/drivers/gpu/drm/msm/msm_mdss.c
index 841016f3983a..fedc1a1fc289 100644
--- a/drivers/gpu/drm/msm/msm_mdss.c
+++ b/drivers/gpu/drm/msm/msm_mdss.c

Please split to the separate patch

@@ -531,6 +531,7 @@ static const struct of_device_id mdss_dt_match[] = {
{ .compatible = "qcom,sc8280xp-mdss" },
{ .compatible = "qcom,sm6115-mdss" },
{ .compatible = "qcom,sm6350-mdss" },
+ { .compatible = "qcom,sm6375-mdss" },

Missing UBWC setup.

{ .compatible = "qcom,sm8150-mdss" },
{ .compatible = "qcom,sm8250-mdss" },
{ .compatible = "qcom,sm8350-mdss" },

--
With best wishes
Dmitry