1 files changed, 446 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c
new file mode 100644
index 000000000000..179890b1a8c4
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c
@@ -0,0 +1,446 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "reg_helper.h"
+#include "dcn10_mpc.h"
+
+#define REG(reg)\
+	mpc10->mpc_regs->reg
+
+#define CTX \
+	mpc10->base.ctx
+
+#undef FN
+#define FN(reg_name, field_name) \
+	mpc10->mpc_shift->field_name, mpc10->mpc_mask->field_name
+
+
+void mpc1_set_bg_color(struct mpc *mpc,
+		struct tg_color *bg_color,
+		int mpcc_id)
+{
+	struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc);
+
+	/* mpc color is 12 bit.  tg_color is 10 bit */
+	/* todo: might want to use 16 bit to represent color and have each
+	 * hw block translate to correct color depth.
+	 */
+	uint32_t bg_r_cr = bg_color->color_r_cr << 2;
+	uint32_t bg_g_y = bg_color->color_g_y << 2;
+	uint32_t bg_b_cb = bg_color->color_b_cb << 2;
+
+	REG_SET(MPCC_BG_R_CR[mpcc_id], 0,
+			MPCC_BG_R_CR, bg_r_cr);
+	REG_SET(MPCC_BG_G_Y[mpcc_id], 0,
+			MPCC_BG_G_Y, bg_g_y);
+	REG_SET(MPCC_BG_B_CB[mpcc_id], 0,
+			MPCC_BG_B_CB, bg_b_cb);
+}
+
+static void mpc1_update_blending(
+	struct mpc *mpc,
+	struct mpcc_blnd_cfg *blnd_cfg,
+	int mpcc_id)
+{
+	struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc);
+
+	REG_UPDATE_5(MPCC_CONTROL[mpcc_id],
+			MPCC_ALPHA_BLND_MODE,		blnd_cfg->alpha_mode,
+			MPCC_ALPHA_MULTIPLIED_MODE,	blnd_cfg->pre_multiplied_alpha,
+			MPCC_BLND_ACTIVE_OVERLAP_ONLY,	blnd_cfg->overlap_only,
+			MPCC_GLOBAL_ALPHA,		blnd_cfg->global_alpha,
+			MPCC_GLOBAL_GAIN,		blnd_cfg->global_gain);
+
+	mpc1_set_bg_color(mpc, &blnd_cfg->black_color, mpcc_id);
+}
+
+void mpc1_update_stereo_mix(
+	struct mpc *mpc,
+	struct mpcc_sm_cfg *sm_cfg,
+	int mpcc_id)
+{
+	struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc);
+
+	REG_UPDATE_6(MPCC_SM_CONTROL[mpcc_id],
+			MPCC_SM_EN,			sm_cfg->enable,
+			MPCC_SM_MODE,			sm_cfg->sm_mode,
+			MPCC_SM_FRAME_ALT,		sm_cfg->frame_alt,
+			MPCC_SM_FIELD_ALT,		sm_cfg->field_alt,
+			MPCC_SM_FORCE_NEXT_FRAME_POL,	sm_cfg->force_next_frame_porlarity,
+			MPCC_SM_FORCE_NEXT_TOP_POL,	sm_cfg->force_next_field_polarity);
+}
+void mpc1_assert_idle_mpcc(struct mpc *mpc, int id)
+{
+	struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc);
+
+	ASSERT(!(mpc10->mpcc_in_use_mask & 1 << id));
+	REG_WAIT(MPCC_STATUS[id],
+			MPCC_IDLE, 1,
+			1, 100000);
+}
+
+struct mpcc *mpc1_get_mpcc(struct mpc *mpc, int mpcc_id)
+{
+	struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc);
+
+	ASSERT(mpcc_id < mpc10->num_mpcc);
+	return &(mpc->mpcc_array[mpcc_id]);
+}
+
+struct mpcc *mpc1_get_mpcc_for_dpp(struct mpc_tree *tree, int dpp_id)
+{
+	struct mpcc *tmp_mpcc = tree->opp_list;
+
+	while (tmp_mpcc != NULL) {
+		if (tmp_mpcc->dpp_id == dpp_id)
+			return tmp_mpcc;
+		tmp_mpcc = tmp_mpcc->mpcc_bot;
+	}
+	return NULL;
+}
+
+bool mpc1_is_mpcc_idle(struct mpc *mpc, int mpcc_id)
+{
+	struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc);
+	unsigned int top_sel;
+	unsigned int opp_id;
+	unsigned int idle;
+
+	REG_GET(MPCC_TOP_SEL[mpcc_id], MPCC_TOP_SEL, &top_sel);
+	REG_GET(MPCC_OPP_ID[mpcc_id],  MPCC_OPP_ID, &opp_id);
+	REG_GET(MPCC_STATUS[mpcc_id],  MPCC_IDLE,   &idle);
+	if (top_sel == 0xf && opp_id == 0xf && idle)
+		return true;
+	else
+		return false;
+}
+
+void mpc1_assert_mpcc_idle_before_connect(struct mpc *mpc, int mpcc_id)
+{
+	struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc);
+	unsigned int top_sel, mpc_busy, mpc_idle;
+
+	REG_GET(MPCC_TOP_SEL[mpcc_id],
+			MPCC_TOP_SEL, &top_sel);
+
+	if (top_sel == 0xf) {
+		REG_GET_2(MPCC_STATUS[mpcc_id],
+				MPCC_BUSY, &mpc_busy,
+				MPCC_IDLE, &mpc_idle);
+
+		ASSERT(mpc_busy == 0);
+		ASSERT(mpc_idle == 1);
+	}
+}
+
+/*
+ * Insert DPP into MPC tree based on specified blending position.
+ * Only used for planes that are part of blending chain for OPP output
+ *
+ * Parameters:
+ * [in/out] mpc		- MPC context.
+ * [in/out] tree	- MPC tree structure that plane will be added to.
+ * [in]	blnd_cfg	- MPCC blending configuration for the new blending layer.
+ * [in]	sm_cfg		- MPCC stereo mix configuration for the new blending layer.
+ *			  stereo mix must disable for the very bottom layer of the tree config.
+ * [in]	insert_above_mpcc - Insert new plane above this MPCC.  If NULL, insert as bottom plane.
+ * [in]	dpp_id		- DPP instance for the plane to be added.
+ * [in]	mpcc_id		- The MPCC physical instance to use for blending.
+ *
+ * Return:  struct mpcc* - MPCC that was added.
+ */
+struct mpcc *mpc1_insert_plane(
+	struct mpc *mpc,
+	struct mpc_tree *tree,
+	struct mpcc_blnd_cfg *blnd_cfg,
+	struct mpcc_sm_cfg *sm_cfg,
+	struct mpcc *insert_above_mpcc,
+	int dpp_id,
+	int mpcc_id)
+{
+	struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc);
+	struct mpcc *new_mpcc = NULL;
+
+	/* sanity check parameters */
+	ASSERT(mpcc_id < mpc10->num_mpcc);
+	ASSERT(!(mpc10->mpcc_in_use_mask & 1 << mpcc_id));
+
+	if (insert_above_mpcc) {
+		/* check insert_above_mpcc exist in tree->opp_list */
+		struct mpcc *temp_mpcc = tree->opp_list;
+
+		while (temp_mpcc && temp_mpcc->mpcc_bot != insert_above_mpcc)
+			temp_mpcc = temp_mpcc->mpcc_bot;
+		if (temp_mpcc == NULL)
+			return NULL;
+	}
+
+	/* Get and update MPCC struct parameters */
+	new_mpcc = mpc1_get_mpcc(mpc, mpcc_id);
+	new_mpcc->dpp_id = dpp_id;
+
+	/* program mux and MPCC_MODE */
+	if (insert_above_mpcc) {
+		new_mpcc->mpcc_bot = insert_above_mpcc;
+		REG_SET(MPCC_BOT_SEL[mpcc_id], 0, MPCC_BOT_SEL, insert_above_mpcc->mpcc_id);
+		REG_UPDATE(MPCC_CONTROL[mpcc_id], MPCC_MODE, MPCC_BLEND_MODE_TOP_BOT_BLENDING);
+	} else {
+		new_mpcc->mpcc_bot = NULL;
+		REG_SET(MPCC_BOT_SEL[mpcc_id], 0, MPCC_BOT_SEL, 0xf);
+		REG_UPDATE(MPCC_CONTROL[mpcc_id], MPCC_MODE, MPCC_BLEND_MODE_TOP_LAYER_PASSTHROUGH);
+	}
+	REG_SET(MPCC_TOP_SEL[mpcc_id], 0, MPCC_TOP_SEL, dpp_id);
+	REG_SET(MPCC_OPP_ID[mpcc_id], 0, MPCC_OPP_ID, tree->opp_id);
+
+	/* update mpc tree mux setting */
+	if (tree->opp_list == insert_above_mpcc) {
+		/* insert the toppest mpcc */
+		tree->opp_list = new_mpcc;
+		REG_UPDATE(MUX[tree->opp_id], MPC_OUT_MUX, mpcc_id);
+	} else {
+		/* find insert position */
+		struct mpcc *temp_mpcc = tree->opp_list;
+
+		while (temp_mpcc && temp_mpcc->mpcc_bot != insert_above_mpcc)
+			temp_mpcc = temp_mpcc->mpcc_bot;
+		if (temp_mpcc && temp_mpcc->mpcc_bot == insert_above_mpcc) {
+			REG_SET(MPCC_BOT_SEL[temp_mpcc->mpcc_id], 0, MPCC_BOT_SEL, mpcc_id);
+			temp_mpcc->mpcc_bot = new_mpcc;
+			if (!insert_above_mpcc)
+				REG_UPDATE(MPCC_CONTROL[temp_mpcc->mpcc_id],
+						MPCC_MODE, MPCC_BLEND_MODE_TOP_BOT_BLENDING);
+		}
+	}
+
+	/* update the blending configuration */
+	new_mpcc->blnd_cfg = *blnd_cfg;
+	mpc->funcs->update_blending(mpc, &new_mpcc->blnd_cfg, mpcc_id);
+
+	/* update the stereo mix settings, if provided */
+	if (sm_cfg != NULL) {
+		new_mpcc->sm_cfg = *sm_cfg;
+		mpc1_update_stereo_mix(mpc, sm_cfg, mpcc_id);
+	}
+
+	/* mark this mpcc as in use */
+	mpc10->mpcc_in_use_mask |= 1 << mpcc_id;
+
+	return new_mpcc;
+}
+
+/*
+ * Remove a specified MPCC from the MPC tree.
+ *
+ * Parameters:
+ * [in/out] mpc		- MPC context.
+ * [in/out] tree	- MPC tree structure that plane will be removed from.
+ * [in/out] mpcc	- MPCC to be removed from tree.
+ *
+ * Return:  void
+ */
+void mpc1_remove_mpcc(
+	struct mpc *mpc,
+	struct mpc_tree *tree,
+	struct mpcc *mpcc_to_remove)
+{
+	struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc);
+	bool found = false;
+	int mpcc_id = mpcc_to_remove->mpcc_id;
+
+	if (tree->opp_list == mpcc_to_remove) {
+		found = true;
+		/* remove MPCC from top of tree */
+		if (mpcc_to_remove->mpcc_bot) {
+			/* set the next MPCC in list to be the top MPCC */
+			tree->opp_list = mpcc_to_remove->mpcc_bot;
+			REG_UPDATE(MUX[tree->opp_id], MPC_OUT_MUX, tree->opp_list->mpcc_id);
+		} else {
+			/* there are no other MPCC is list */
+			tree->opp_list = NULL;
+			REG_UPDATE(MUX[tree->opp_id], MPC_OUT_MUX, 0xf);
+		}
+	} else {
+		/* find mpcc to remove MPCC list */
+		struct mpcc *temp_mpcc = tree->opp_list;
+
+		while (temp_mpcc && temp_mpcc->mpcc_bot != mpcc_to_remove)
+			temp_mpcc = temp_mpcc->mpcc_bot;
+
+		if (temp_mpcc && temp_mpcc->mpcc_bot == mpcc_to_remove) {
+			found = true;
+			temp_mpcc->mpcc_bot = mpcc_to_remove->mpcc_bot;
+			if (mpcc_to_remove->mpcc_bot) {
+				/* remove MPCC in middle of list */
+				REG_SET(MPCC_BOT_SEL[temp_mpcc->mpcc_id], 0,
+						MPCC_BOT_SEL, mpcc_to_remove->mpcc_bot->mpcc_id);
+			} else {
+				/* remove MPCC from bottom of list */
+				REG_SET(MPCC_BOT_SEL[temp_mpcc->mpcc_id], 0,
+						MPCC_BOT_SEL, 0xf);
+				REG_UPDATE(MPCC_CONTROL[temp_mpcc->mpcc_id],
+						MPCC_MODE, MPCC_BLEND_MODE_TOP_LAYER_PASSTHROUGH);
+			}
+		}
+	}
+
+	if (found) {
+		/* turn off MPCC mux registers */
+		REG_SET(MPCC_TOP_SEL[mpcc_id], 0, MPCC_TOP_SEL, 0xf);
+		REG_SET(MPCC_BOT_SEL[mpcc_id], 0, MPCC_BOT_SEL, 0xf);
+		REG_SET(MPCC_OPP_ID[mpcc_id],  0, MPCC_OPP_ID,  0xf);
+
+		/* mark this mpcc as not in use */
+		mpc10->mpcc_in_use_mask &= ~(1 << mpcc_id);
+		mpcc_to_remove->dpp_id = 0xf;
+		mpcc_to_remove->mpcc_bot = NULL;
+	} else {
+		/* In case of resume from S3/S4, remove mpcc from bios left over */
+		REG_SET(MPCC_TOP_SEL[mpcc_id], 0, MPCC_TOP_SEL, 0xf);
+		REG_SET(MPCC_BOT_SEL[mpcc_id], 0, MPCC_BOT_SEL, 0xf);
+		REG_SET(MPCC_OPP_ID[mpcc_id],  0, MPCC_OPP_ID,  0xf);
+	}
+}
+
+static void mpc1_init_mpcc(struct mpcc *mpcc, int mpcc_inst)
+{
+	mpcc->mpcc_id = mpcc_inst;
+	mpcc->dpp_id = 0xf;
+	mpcc->mpcc_bot = NULL;
+	mpcc->blnd_cfg.overlap_only = false;
+	mpcc->blnd_cfg.global_alpha = 0xff;
+	mpcc->blnd_cfg.global_gain = 0xff;
+	mpcc->sm_cfg.enable = false;
+}
+
+/*
+ * Reset the MPCC HW status by disconnecting all muxes.
+ *
+ * Parameters:
+ * [in/out] mpc		- MPC context.
+ *
+ * Return:  void
+ */
+void mpc1_mpc_init(struct mpc *mpc)
+{
+	struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc);
+	int mpcc_id;
+	int opp_id;
+
+	mpc10->mpcc_in_use_mask = 0;
+	for (mpcc_id = 0; mpcc_id < mpc10->num_mpcc; mpcc_id++) {
+		REG_SET(MPCC_TOP_SEL[mpcc_id], 0, MPCC_TOP_SEL, 0xf);
+		REG_SET(MPCC_BOT_SEL[mpcc_id], 0, MPCC_BOT_SEL, 0xf);
+		REG_SET(MPCC_OPP_ID[mpcc_id],  0, MPCC_OPP_ID,  0xf);
+
+		mpc1_init_mpcc(&(mpc->mpcc_array[mpcc_id]), mpcc_id);
+	}
+
+	for (opp_id = 0; opp_id < MAX_OPP; opp_id++) {
+		if (REG(MUX[opp_id]))
+			REG_UPDATE(MUX[opp_id], MPC_OUT_MUX, 0xf);
+	}
+}
+
+void mpc1_init_mpcc_list_from_hw(
+	struct mpc *mpc,
+	struct mpc_tree *tree)
+{
+	struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc);
+	unsigned int opp_id;
+	unsigned int top_sel;
+	unsigned int bot_sel;
+	unsigned int out_mux;
+	struct mpcc *mpcc;
+	int mpcc_id;
+	int bot_mpcc_id;
+
+	REG_GET(MUX[tree->opp_id], MPC_OUT_MUX, &out_mux);
+
+	if (out_mux != 0xf) {
+		for (mpcc_id = 0; mpcc_id < mpc10->num_mpcc; mpcc_id++) {
+			REG_GET(MPCC_OPP_ID[mpcc_id],  MPCC_OPP_ID,  &opp_id);
+			REG_GET(MPCC_TOP_SEL[mpcc_id], MPCC_TOP_SEL, &top_sel);
+			REG_GET(MPCC_BOT_SEL[mpcc_id],  MPCC_BOT_SEL, &bot_sel);
+
+			if (bot_sel == mpcc_id)
+				bot_sel = 0xf;
+
+			if ((opp_id == tree->opp_id) && (top_sel != 0xf)) {
+				mpcc = mpc1_get_mpcc(mpc, mpcc_id);
+				mpcc->dpp_id = top_sel;
+				mpc10->mpcc_in_use_mask |= 1 << mpcc_id;
+
+				if (out_mux == mpcc_id)
+					tree->opp_list = mpcc;
+				if (bot_sel != 0xf && bot_sel < mpc10->num_mpcc) {
+					bot_mpcc_id = bot_sel;
+					REG_GET(MPCC_OPP_ID[bot_mpcc_id],  MPCC_OPP_ID,  &opp_id);
+					REG_GET(MPCC_TOP_SEL[bot_mpcc_id], MPCC_TOP_SEL, &top_sel);
+					if ((opp_id == tree->opp_id) && (top_sel != 0xf)) {
+						struct mpcc *mpcc_bottom = mpc1_get_mpcc(mpc, bot_mpcc_id);
+
+						mpcc->mpcc_bot = mpcc_bottom;
+					}
+				}
+			}
+		}
+	}
+}
+
+const struct mpc_funcs dcn10_mpc_funcs = {
+	.insert_plane = mpc1_insert_plane,
+	.remove_mpcc = mpc1_remove_mpcc,
+	.mpc_init = mpc1_mpc_init,
+	.get_mpcc_for_dpp = mpc1_get_mpcc_for_dpp,
+	.wait_for_idle = mpc1_assert_idle_mpcc,
+	.assert_mpcc_idle_before_connect = mpc1_assert_mpcc_idle_before_connect,
+	.init_mpcc_list_from_hw = mpc1_init_mpcc_list_from_hw,
+	.update_blending = mpc1_update_blending,
+};
+
+void dcn10_mpc_construct(struct dcn10_mpc *mpc10,
+	struct dc_context *ctx,
+	const struct dcn_mpc_registers *mpc_regs,
+	const struct dcn_mpc_shift *mpc_shift,
+	const struct dcn_mpc_mask *mpc_mask,
+	int num_mpcc)
+{
+	int i;
+
+	mpc10->base.ctx = ctx;
+
+	mpc10->base.funcs = &dcn10_mpc_funcs;
+
+	mpc10->mpc_regs = mpc_regs;
+	mpc10->mpc_shift = mpc_shift;
+	mpc10->mpc_mask = mpc_mask;
+
+	mpc10->mpcc_in_use_mask = 0;
+	mpc10->num_mpcc = num_mpcc;
+
+	for (i = 0; i < MAX_MPCC; i++)
+		mpc1_init_mpcc(&mpc10->base.mpcc_array[i], i);
+}
+