[RFC PATCH v2 3/5] drm/amd/display: create DCN3-specific log for MPC state

[Melissa Wen]

Logging DCN3 MPC state was following DCN1 implementation that doesn't
consider new DCN3 MPC color blocks. Create new elements according to
DCN3 MPC color caps and a new DCN3-specific function for reading MPC
data.

Signed-off-by: Melissa Wen <mwen at igalia.com>
---
 .../gpu/drm/amd/display/dc/dcn30/dcn30_mpc.c  | 55 ++++++++++++++++++-
 drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h   | 13 +++++
 2 files changed, 67 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mpc.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mpc.c
index d1500b223858..d164fbf89212 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mpc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mpc.c
@@ -1382,8 +1382,61 @@ static void mpc3_set_mpc_mem_lp_mode(struct mpc *mpc)
 	}
 }
 
+static void mpc3_read_mpcc_state(
+		struct mpc *mpc,
+		int mpcc_inst,
+		struct mpcc_state *s)
+{
+	struct dcn30_mpc *mpc30 = TO_DCN30_MPC(mpc);
+	uint32_t rmu_status = 0xf;
+
+	REG_GET(MPCC_OPP_ID[mpcc_inst], MPCC_OPP_ID, &s->opp_id);
+	REG_GET(MPCC_TOP_SEL[mpcc_inst], MPCC_TOP_SEL, &s->dpp_id);
+	REG_GET(MPCC_BOT_SEL[mpcc_inst], MPCC_BOT_SEL, &s->bot_mpcc_id);
+	REG_GET_4(MPCC_CONTROL[mpcc_inst], MPCC_MODE, &s->mode,
+			MPCC_ALPHA_BLND_MODE, &s->alpha_mode,
+			MPCC_ALPHA_MULTIPLIED_MODE, &s->pre_multiplied_alpha,
+			MPCC_BLND_ACTIVE_OVERLAP_ONLY, &s->overlap_only);
+	REG_GET_2(MPCC_STATUS[mpcc_inst], MPCC_IDLE, &s->idle,
+			MPCC_BUSY, &s->busy);
+
+	/* Color blocks state */
+	REG_GET(MPC_RMU_CONTROL, MPC_RMU0_MUX_STATUS, &rmu_status);
+	if (rmu_status == mpcc_inst) {
+		REG_GET(SHAPER_CONTROL[0],
+			MPC_RMU_SHAPER_LUT_MODE_CURRENT, &s->shaper_lut_mode);
+		REG_GET(RMU_3DLUT_MODE[0],
+			MPC_RMU_3DLUT_MODE_CURRENT,  &s->lut3d_mode);
+		REG_GET(RMU_3DLUT_READ_WRITE_CONTROL[0],
+			MPC_RMU_3DLUT_30BIT_EN, &s->lut3d_bit_depth);
+		REG_GET(RMU_3DLUT_MODE[0],
+			MPC_RMU_3DLUT_SIZE, &s->lut3d_size);
+	} else {
+		REG_GET(SHAPER_CONTROL[1],
+			MPC_RMU_SHAPER_LUT_MODE_CURRENT, &s->shaper_lut_mode);
+		REG_GET(RMU_3DLUT_MODE[1],
+			MPC_RMU_3DLUT_MODE_CURRENT,  &s->lut3d_mode);
+		REG_GET(RMU_3DLUT_READ_WRITE_CONTROL[1],
+			MPC_RMU_3DLUT_30BIT_EN, &s->lut3d_bit_depth);
+		REG_GET(RMU_3DLUT_MODE[1],
+			MPC_RMU_3DLUT_SIZE, &s->lut3d_size);
+	}
+         REG_GET_2(MPCC_OGAM_CONTROL[mpcc_inst],
+		   MPCC_OGAM_MODE_CURRENT, &s->rgam_mode,
+		   MPCC_OGAM_SELECT_CURRENT, &s->rgam_lut);
+	REG_GET(MPCC_GAMUT_REMAP_MODE[mpcc_inst],
+		MPCC_GAMUT_REMAP_MODE_CURRENT, &s->gamut_remap_mode);
+	if (s->gamut_remap_mode == 1) {
+		s->gamut_remap_c11_c12 = REG_READ(MPC_GAMUT_REMAP_C11_C12_A[mpcc_inst]);
+		s->gamut_remap_c33_c34 = REG_READ(MPC_GAMUT_REMAP_C33_C34_A[mpcc_inst]);
+	} else if (s->gamut_remap_mode == 2) {
+		s->gamut_remap_c11_c12 = REG_READ(MPC_GAMUT_REMAP_C11_C12_B[mpcc_inst]);
+		s->gamut_remap_c33_c34 = REG_READ(MPC_GAMUT_REMAP_C33_C34_B[mpcc_inst]);
+	}
+}
+
 static const struct mpc_funcs dcn30_mpc_funcs = {
-	.read_mpcc_state = mpc1_read_mpcc_state,
+	.read_mpcc_state = mpc3_read_mpcc_state,
 	.insert_plane = mpc1_insert_plane,
 	.remove_mpcc = mpc1_remove_mpcc,
 	.mpc_init = mpc1_mpc_init,
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h b/drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h
index 8d86159d9de0..e60b3503605b 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h
@@ -193,6 +193,19 @@ struct mpcc_state {
 	uint32_t overlap_only;
 	uint32_t idle;
 	uint32_t busy;
+	uint32_t shaper_lut_mode;
+	uint32_t lut3d_mode;
+	uint32_t lut3d_bit_depth;
+	uint32_t lut3d_size;
+	uint32_t rgam_mode;
+	uint32_t rgam_lut;
+	uint32_t gamut_remap_mode;
+	uint32_t gamut_remap_c11_c12;
+	uint32_t gamut_remap_c13_c14;
+	uint32_t gamut_remap_c21_c22;
+	uint32_t gamut_remap_c23_c24;
+	uint32_t gamut_remap_c31_c32;
+	uint32_t gamut_remap_c33_c34;
 };
 
 /**
-- 
2.40.1