[PATCH 2/2] drm/msm/dpu: add support for pcc color block in dpu driver
Kalyan Thota
kalyan_t at codeaurora.org
Tue Mar 24 10:01:19 UTC 2020
This change adds support for color correction sub block
for SC7180 device.
Signed-off-by: Kalyan Thota <kalyan_t at codeaurora.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 77 ++++++++++++++++++++++++++
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 9 ++-
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c | 49 +++++++++++++++-
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.h | 33 ++++++++++-
4 files changed, 164 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index bf51341..156a997 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -9,6 +9,7 @@
#include <linux/sort.h>
#include <linux/debugfs.h>
#include <linux/ktime.h>
+#include <linux/bits.h>
#include <drm/drm_crtc.h>
#include <drm/drm_flip_work.h>
@@ -20,6 +21,7 @@
#include "dpu_kms.h"
#include "dpu_hw_lm.h"
#include "dpu_hw_ctl.h"
+#include "dpu_hw_dspp.h"
#include "dpu_crtc.h"
#include "dpu_plane.h"
#include "dpu_encoder.h"
@@ -40,6 +42,9 @@
/* timeout in ms waiting for frame done */
#define DPU_CRTC_FRAME_DONE_TIMEOUT_MS 60
+#define CONVERT_S3_15(val) \
+ (((((u64)val) & ~BIT_ULL(63)) >> 17) & GENMASK_ULL(17, 0))
+
static struct dpu_kms *_dpu_crtc_get_kms(struct drm_crtc *crtc)
{
struct msm_drm_private *priv = crtc->dev->dev_private;
@@ -422,6 +427,74 @@ static void _dpu_crtc_setup_lm_bounds(struct drm_crtc *crtc,
drm_mode_debug_printmodeline(adj_mode);
}
+static void _dpu_crtc_get_pcc_coeff(struct drm_crtc_state *state,
+ struct dpu_hw_pcc_cfg *cfg)
+{
+ struct drm_color_ctm *ctm;
+
+ memset(cfg, 0, sizeof(struct dpu_hw_pcc_cfg));
+
+ ctm = (struct drm_color_ctm *)state->ctm->data;
+
+ if (!ctm)
+ return;
+
+ cfg->r.r = CONVERT_S3_15(ctm->matrix[0]);
+ cfg->g.r = CONVERT_S3_15(ctm->matrix[1]);
+ cfg->b.r = CONVERT_S3_15(ctm->matrix[2]);
+
+ cfg->r.g = CONVERT_S3_15(ctm->matrix[3]);
+ cfg->g.g = CONVERT_S3_15(ctm->matrix[4]);
+ cfg->b.g = CONVERT_S3_15(ctm->matrix[5]);
+
+ cfg->r.b = CONVERT_S3_15(ctm->matrix[6]);
+ cfg->g.b = CONVERT_S3_15(ctm->matrix[7]);
+ cfg->b.b = CONVERT_S3_15(ctm->matrix[8]);
+}
+
+static void _dpu_crtc_setup_cp_blocks(struct drm_crtc *crtc)
+{
+ struct drm_crtc_state *state = crtc->state;
+ struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state);
+ struct dpu_crtc_mixer *mixer = cstate->mixers;
+ struct dpu_hw_pcc_cfg cfg;
+ struct dpu_hw_ctl *ctl;
+ struct dpu_hw_mixer *lm;
+ struct dpu_hw_dspp *dspp;
+ int i;
+
+
+ if (!state->color_mgmt_changed)
+ return;
+
+ for (i = 0; i < cstate->num_mixers; i++) {
+ ctl = mixer[i].lm_ctl;
+ lm = mixer[i].hw_lm;
+ dspp = mixer[i].hw_dspp;
+
+ if (!dspp || !dspp->ops.setup_pcc)
+ continue;
+
+ if (!state->ctm) {
+ dspp->ops.setup_pcc(dspp, NULL);
+ } else {
+ _dpu_crtc_get_pcc_coeff(state, &cfg);
+ dspp->ops.setup_pcc(dspp, &cfg);
+ }
+
+ mixer[i].flush_mask |= ctl->ops.get_bitmask_dspp(ctl,
+ mixer[i].hw_dspp->idx);
+
+ /* stage config flush mask */
+ ctl->ops.update_pending_flush(ctl, mixer[i].flush_mask);
+
+ DPU_DEBUG("lm %d, ctl %d, flush mask 0x%x\n",
+ mixer[i].hw_lm->idx - DSPP_0,
+ ctl->idx - CTL_0,
+ mixer[i].flush_mask);
+ }
+}
+
static void dpu_crtc_atomic_begin(struct drm_crtc *crtc,
struct drm_crtc_state *old_state)
{
@@ -475,6 +548,8 @@ static void dpu_crtc_atomic_begin(struct drm_crtc *crtc,
_dpu_crtc_blend_setup(crtc);
+ _dpu_crtc_setup_cp_blocks(crtc);
+
/*
* PP_DONE irq is only used by command mode for now.
* It is better to request pending before FLUSH and START trigger
@@ -1317,6 +1392,8 @@ struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane,
drm_crtc_helper_add(crtc, &dpu_crtc_helper_funcs);
+ drm_crtc_enable_color_mgmt(crtc, 0, true, 0);
+
/* save user friendly CRTC name for later */
snprintf(dpu_crtc->name, DPU_CRTC_NAME_SIZE, "crtc%u", crtc->base.id);
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 19d065a..731b4fb 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
@@ -41,7 +41,7 @@
#define PINGPONG_SDM845_SPLIT_MASK \
(PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2))
-#define DSPP_SC7180_MASK 0
+#define DSPP_SC7180_MASK BIT(DPU_DSPP_PCC)
#define DEFAULT_PIXEL_RAM_SIZE (50 * 1024)
#define DEFAULT_DPU_LINE_WIDTH 2048
@@ -339,12 +339,17 @@
/*************************************************************
* DSPP sub blocks config
*************************************************************/
+static const struct dpu_dspp_sub_blks sc7180_dspp_sblk = {
+ .pcc = {.id = DPU_DSPP_PCC, .base = 0x1700,
+ .len = 0x90, .version = 0x10000},
+};
+
#define DSPP_BLK(_name, _id, _base) \
{\
.name = _name, .id = _id, \
.base = _base, .len = 0x1800, \
.features = DSPP_SC7180_MASK, \
- .sblk = NULL, \
+ .sblk = &sc7180_dspp_sblk \
}
static const struct dpu_dspp_cfg sc7180_dspp[] = {
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c
index 75c82e9..b5189ce 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c
@@ -9,10 +9,57 @@
#include "dpu_kms.h"
+/* DSPP_PCC */
+#define PCC_EN BIT(0)
+#define PCC_DIS 0
+#define PCC_RED_R_OFF 0x10
+#define PCC_RED_G_OFF 0x1C
+#define PCC_RED_B_OFF 0x28
+#define PCC_GREEN_R_OFF 0x14
+#define PCC_GREEN_G_OFF 0x20
+#define PCC_GREEN_B_OFF 0x2C
+#define PCC_BLUE_R_OFF 0x18
+#define PCC_BLUE_G_OFF 0x24
+#define PCC_BLUE_B_OFF 0x30
+
+void dpu_setup_dspp_pcc(struct dpu_hw_dspp *ctx,
+ struct dpu_hw_pcc_cfg *cfg)
+{
+
+ u32 base = ctx->cap->sblk->pcc.base;
+
+ if (!ctx || !base) {
+ DRM_ERROR("invalid ctx %pK pcc base 0x%x\n", ctx, base);
+ return;
+ }
+
+ if (!cfg) {
+ DRM_DEBUG_DRIVER("disable pcc feature\n");
+ DPU_REG_WRITE(&ctx->hw, base, PCC_DIS);
+ return;
+ }
+
+ DPU_REG_WRITE(&ctx->hw, base + PCC_RED_R_OFF, cfg->r.r);
+ DPU_REG_WRITE(&ctx->hw, base + PCC_RED_G_OFF, cfg->r.g);
+ DPU_REG_WRITE(&ctx->hw, base + PCC_RED_B_OFF, cfg->r.b);
+
+ DPU_REG_WRITE(&ctx->hw, base + PCC_GREEN_R_OFF, cfg->g.r);
+ DPU_REG_WRITE(&ctx->hw, base + PCC_GREEN_G_OFF, cfg->g.g);
+ DPU_REG_WRITE(&ctx->hw, base + PCC_GREEN_B_OFF, cfg->g.b);
+
+ DPU_REG_WRITE(&ctx->hw, base + PCC_BLUE_R_OFF, cfg->b.r);
+ DPU_REG_WRITE(&ctx->hw, base + PCC_BLUE_G_OFF, cfg->b.g);
+ DPU_REG_WRITE(&ctx->hw, base + PCC_BLUE_B_OFF, cfg->b.b);
+
+ DPU_REG_WRITE(&ctx->hw, base, PCC_EN);
+}
+
static void _setup_dspp_ops(struct dpu_hw_dspp *c,
unsigned long features)
{
- return;
+ if (test_bit(DPU_DSPP_PCC, &features) &&
+ IS_SC7180_TARGET(c->hw.hwversion))
+ c->ops.setup_pcc = dpu_setup_dspp_pcc;
}
static const struct dpu_dspp_cfg *_dspp_offset(enum dpu_dspp dspp,
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.h
index 09807ea..7fa189c 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.h
@@ -10,13 +10,44 @@
struct dpu_hw_dspp;
/**
+ * struct dpu_hw_pcc_coeff - PCC coefficient structure for each color
+ * component.
+ * @r: red coefficient.
+ * @g: green coefficient.
+ * @b: blue coefficient.
+ */
+
+struct dpu_hw_pcc_coeff {
+ __u32 r;
+ __u32 g;
+ __u32 b;
+};
+
+/**
+ * struct dpu_hw_pcc - pcc feature structure
+ * @r: red coefficients.
+ * @g: green coefficients.
+ * @b: blue coefficients.
+ */
+struct dpu_hw_pcc_cfg {
+ struct dpu_hw_pcc_coeff r;
+ struct dpu_hw_pcc_coeff g;
+ struct dpu_hw_pcc_coeff b;
+};
+
+/**
* struct dpu_hw_dspp_ops - interface to the dspp hardware driver functions
* Caller must call the init function to get the dspp context for each dspp
* Assumption is these functions will be called after clocks are enabled
*/
struct dpu_hw_dspp_ops {
+ /**
+ * setup_pcc - setup dspp pcc
+ * @ctx: Pointer to dspp context
+ * @cfg: Pointer to configuration
+ */
+ void (*setup_pcc)(struct dpu_hw_dspp *ctx, struct dpu_hw_pcc_cfg *cfg);
- void (*dummy)(struct dpu_hw_dspp *ctx);
};
/**
--
1.9.1
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