mako: use updated caf display variant

Change-Id: I997db734e4271d51b2db4ca6bd728fc8b32cd6fc
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 51aac94..04d353c 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -66,7 +66,8 @@
 TARGET_USES_ION := true
 TARGET_USES_OVERLAY := true
 TARGET_USES_SF_BYPASS := true
-TARGET_USES_C2D_COMPOSITON := true
+TARGET_USES_C2D_COMPOSITION := true
+TARGET_QCOM_DISPLAY_VARIANT := caf
 
 TARGET_RECOVERY_PIXEL_FORMAT := "RGBX_8888"
 TARGET_RECOVERY_UI_LIB := librecovery_ui_mako
diff --git a/device.mk b/device.mk
index 3cd1950..112aace 100644
--- a/device.mk
+++ b/device.mk
@@ -147,8 +147,9 @@
 PRODUCT_PROPERTY_OVERRIDES += \
 	ro.telephony.call_ring.multiple=0
 
-#Upto 3 layers can go through overlays
-PRODUCT_PROPERTY_OVERRIDES += debug.mdpcomp.maxlayer=3
+# enable overlay pipes
+PRODUCT_PROPERTY_OVERRIDES += \
+    persist.hwc.mdpcomp.enable=1
 
 PRODUCT_CHARACTERISTICS := nosdcard
 
diff --git a/kernel-headers/linux/msm_mdp.h b/kernel-headers/linux/msm_mdp.h
new file mode 100644
index 0000000..1f06144
--- /dev/null
+++ b/kernel-headers/linux/msm_mdp.h
@@ -0,0 +1,559 @@
+/* include/linux/msm_mdp.h
+ *
+ * Copyright (C) 2007 Google Incorporated
+ * Copyright (c) 2012 Code Aurora Forum. All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#ifndef _MSM_MDP_H_
+#define _MSM_MDP_H_
+
+#include <linux/types.h>
+#include <linux/fb.h>
+
+#define MSMFB_IOCTL_MAGIC 'm'
+#define MSMFB_GRP_DISP          _IOW(MSMFB_IOCTL_MAGIC, 1, unsigned int)
+#define MSMFB_BLIT              _IOW(MSMFB_IOCTL_MAGIC, 2, unsigned int)
+#define MSMFB_SUSPEND_SW_REFRESHER _IOW(MSMFB_IOCTL_MAGIC, 128, unsigned int)
+#define MSMFB_RESUME_SW_REFRESHER _IOW(MSMFB_IOCTL_MAGIC, 129, unsigned int)
+#define MSMFB_CURSOR _IOW(MSMFB_IOCTL_MAGIC, 130, struct fb_cursor)
+#define MSMFB_SET_LUT _IOW(MSMFB_IOCTL_MAGIC, 131, struct fb_cmap)
+#define MSMFB_HISTOGRAM _IOWR(MSMFB_IOCTL_MAGIC, 132, struct mdp_histogram_data)
+/* new ioctls's for set/get ccs matrix */
+#define MSMFB_GET_CCS_MATRIX  _IOWR(MSMFB_IOCTL_MAGIC, 133, struct mdp_ccs)
+#define MSMFB_SET_CCS_MATRIX  _IOW(MSMFB_IOCTL_MAGIC, 134, struct mdp_ccs)
+#define MSMFB_OVERLAY_SET       _IOWR(MSMFB_IOCTL_MAGIC, 135, \
+						struct mdp_overlay)
+#define MSMFB_OVERLAY_UNSET     _IOW(MSMFB_IOCTL_MAGIC, 136, unsigned int)
+
+#define MSMFB_OVERLAY_PLAY      _IOW(MSMFB_IOCTL_MAGIC, 137, \
+						struct msmfb_overlay_data)
+#define MSMFB_OVERLAY_QUEUE	MSMFB_OVERLAY_PLAY
+
+#define MSMFB_GET_PAGE_PROTECTION _IOR(MSMFB_IOCTL_MAGIC, 138, \
+					struct mdp_page_protection)
+#define MSMFB_SET_PAGE_PROTECTION _IOW(MSMFB_IOCTL_MAGIC, 139, \
+					struct mdp_page_protection)
+#define MSMFB_OVERLAY_GET      _IOR(MSMFB_IOCTL_MAGIC, 140, \
+						struct mdp_overlay)
+#define MSMFB_OVERLAY_PLAY_ENABLE     _IOW(MSMFB_IOCTL_MAGIC, 141, unsigned int)
+#define MSMFB_OVERLAY_BLT       _IOWR(MSMFB_IOCTL_MAGIC, 142, \
+						struct msmfb_overlay_blt)
+#define MSMFB_OVERLAY_BLT_OFFSET     _IOW(MSMFB_IOCTL_MAGIC, 143, unsigned int)
+#define MSMFB_HISTOGRAM_START	_IOR(MSMFB_IOCTL_MAGIC, 144, \
+						struct mdp_histogram_start_req)
+#define MSMFB_HISTOGRAM_STOP	_IOR(MSMFB_IOCTL_MAGIC, 145, unsigned int)
+#define MSMFB_NOTIFY_UPDATE	_IOW(MSMFB_IOCTL_MAGIC, 146, unsigned int)
+
+#define MSMFB_OVERLAY_3D       _IOWR(MSMFB_IOCTL_MAGIC, 147, \
+						struct msmfb_overlay_3d)
+
+#define MSMFB_MIXER_INFO       _IOWR(MSMFB_IOCTL_MAGIC, 148, \
+						struct msmfb_mixer_info_req)
+#define MSMFB_OVERLAY_PLAY_WAIT _IOWR(MSMFB_IOCTL_MAGIC, 149, \
+						struct msmfb_overlay_data)
+#define MSMFB_WRITEBACK_INIT _IO(MSMFB_IOCTL_MAGIC, 150)
+#define MSMFB_WRITEBACK_START _IO(MSMFB_IOCTL_MAGIC, 151)
+#define MSMFB_WRITEBACK_STOP _IO(MSMFB_IOCTL_MAGIC, 152)
+#define MSMFB_WRITEBACK_QUEUE_BUFFER _IOW(MSMFB_IOCTL_MAGIC, 153, \
+						struct msmfb_data)
+#define MSMFB_WRITEBACK_DEQUEUE_BUFFER _IOW(MSMFB_IOCTL_MAGIC, 154, \
+						struct msmfb_data)
+#define MSMFB_WRITEBACK_TERMINATE _IO(MSMFB_IOCTL_MAGIC, 155)
+#define MSMFB_MDP_PP _IOWR(MSMFB_IOCTL_MAGIC, 156, struct msmfb_mdp_pp)
+#define MSMFB_OVERLAY_VSYNC_CTRL _IOW(MSMFB_IOCTL_MAGIC, 160, unsigned int)
+#define MSMFB_VSYNC_CTRL  _IOW(MSMFB_IOCTL_MAGIC, 161, unsigned int)
+#define MSMFB_BUFFER_SYNC  _IOW(MSMFB_IOCTL_MAGIC, 162, struct mdp_buf_sync)
+#define MSMFB_DISPLAY_COMMIT      _IOW(MSMFB_IOCTL_MAGIC, 164, \
+						struct mdp_display_commit)
+
+#define FB_TYPE_3D_PANEL 0x10101010
+#define MDP_IMGTYPE2_START 0x10000
+#define MSMFB_DRIVER_VERSION	0xF9E8D701
+
+enum {
+	NOTIFY_UPDATE_START,
+	NOTIFY_UPDATE_STOP,
+};
+
+enum {
+	MDP_RGB_565,      /* RGB 565 planer */
+	MDP_XRGB_8888,    /* RGB 888 padded */
+	MDP_Y_CBCR_H2V2,  /* Y and CbCr, pseudo planer w/ Cb is in MSB */
+	MDP_Y_CBCR_H2V2_ADRENO,
+	MDP_ARGB_8888,    /* ARGB 888 */
+	MDP_RGB_888,      /* RGB 888 planer */
+	MDP_Y_CRCB_H2V2,  /* Y and CrCb, pseudo planer w/ Cr is in MSB */
+	MDP_YCRYCB_H2V1,  /* YCrYCb interleave */
+	MDP_Y_CRCB_H2V1,  /* Y and CrCb, pseduo planer w/ Cr is in MSB */
+	MDP_Y_CBCR_H2V1,   /* Y and CrCb, pseduo planer w/ Cr is in MSB */
+	MDP_Y_CRCB_H1V2,
+	MDP_Y_CBCR_H1V2,
+	MDP_RGBA_8888,    /* ARGB 888 */
+	MDP_BGRA_8888,	  /* ABGR 888 */
+	MDP_RGBX_8888,	  /* RGBX 888 */
+	MDP_Y_CRCB_H2V2_TILE,  /* Y and CrCb, pseudo planer tile */
+	MDP_Y_CBCR_H2V2_TILE,  /* Y and CbCr, pseudo planer tile */
+	MDP_Y_CR_CB_H2V2,  /* Y, Cr and Cb, planar */
+	MDP_Y_CR_CB_GH2V2,  /* Y, Cr and Cb, planar aligned to Android YV12 */
+	MDP_Y_CB_CR_H2V2,  /* Y, Cb and Cr, planar */
+	MDP_Y_CRCB_H1V1,  /* Y and CrCb, pseduo planer w/ Cr is in MSB */
+	MDP_Y_CBCR_H1V1,  /* Y and CbCr, pseduo planer w/ Cb is in MSB */
+	MDP_YCRCB_H1V1,   /* YCrCb interleave */
+	MDP_YCBCR_H1V1,   /* YCbCr interleave */
+	MDP_BGR_565,      /* BGR 565 planer */
+	MDP_IMGTYPE_LIMIT,
+	MDP_RGB_BORDERFILL,	/* border fill pipe */
+	MDP_FB_FORMAT = MDP_IMGTYPE2_START,    /* framebuffer format */
+	MDP_IMGTYPE_LIMIT2 /* Non valid image type after this enum */
+};
+
+enum {
+	PMEM_IMG,
+	FB_IMG,
+};
+
+enum {
+	HSIC_HUE = 0,
+	HSIC_SAT,
+	HSIC_INT,
+	HSIC_CON,
+	NUM_HSIC_PARAM,
+};
+
+#define MDSS_MDP_ROT_ONLY		0x80
+#define MDSS_MDP_RIGHT_MIXER		0x100
+
+/* mdp_blit_req flag values */
+#define MDP_ROT_NOP 0
+#define MDP_FLIP_LR 0x1
+#define MDP_FLIP_UD 0x2
+#define MDP_ROT_90 0x4
+#define MDP_ROT_180 (MDP_FLIP_UD|MDP_FLIP_LR)
+#define MDP_ROT_270 (MDP_ROT_90|MDP_FLIP_UD|MDP_FLIP_LR)
+#define MDP_DITHER 0x8
+#define MDP_BLUR 0x10
+#define MDP_BLEND_FG_PREMULT 0x20000
+#define MDP_DEINTERLACE 0x80000000
+#define MDP_SHARPENING  0x40000000
+#define MDP_NO_DMA_BARRIER_START	0x20000000
+#define MDP_NO_DMA_BARRIER_END		0x10000000
+#define MDP_NO_BLIT			0x08000000
+#define MDP_BLIT_WITH_DMA_BARRIERS	0x000
+#define MDP_BLIT_WITH_NO_DMA_BARRIERS    \
+	(MDP_NO_DMA_BARRIER_START | MDP_NO_DMA_BARRIER_END)
+#define MDP_BLIT_SRC_GEM                0x04000000
+#define MDP_BLIT_DST_GEM                0x02000000
+#define MDP_BLIT_NON_CACHED		0x01000000
+#define MDP_OV_PIPE_SHARE		0x00800000
+#define MDP_DEINTERLACE_ODD		0x00400000
+#define MDP_OV_PLAY_NOWAIT		0x00200000
+#define MDP_SOURCE_ROTATED_90		0x00100000
+#define MDP_OVERLAY_PP_CFG_EN		0x00080000
+#define MDP_BACKEND_COMPOSITION		0x00040000
+#define MDP_BORDERFILL_SUPPORTED	0x00010000
+#define MDP_SECURE_OVERLAY_SESSION      0x00008000
+#define MDP_MEMORY_ID_TYPE_FB		0x00001000
+
+#define MDP_TRANSP_NOP 0xffffffff
+#define MDP_ALPHA_NOP 0xff
+
+#define MDP_FB_PAGE_PROTECTION_NONCACHED         (0)
+#define MDP_FB_PAGE_PROTECTION_WRITECOMBINE      (1)
+#define MDP_FB_PAGE_PROTECTION_WRITETHROUGHCACHE (2)
+#define MDP_FB_PAGE_PROTECTION_WRITEBACKCACHE    (3)
+#define MDP_FB_PAGE_PROTECTION_WRITEBACKWACACHE  (4)
+/* Sentinel: Don't use! */
+#define MDP_FB_PAGE_PROTECTION_INVALID           (5)
+/* Count of the number of MDP_FB_PAGE_PROTECTION_... values. */
+#define MDP_NUM_FB_PAGE_PROTECTION_VALUES        (5)
+
+struct mdp_rect {
+	uint32_t x;
+	uint32_t y;
+	uint32_t w;
+	uint32_t h;
+};
+
+struct mdp_img {
+	uint32_t width;
+	uint32_t height;
+	uint32_t format;
+	uint32_t offset;
+	int memory_id;		/* the file descriptor */
+	uint32_t priv;
+};
+
+/*
+ * {3x3} + {3} ccs matrix
+ */
+
+#define MDP_CCS_RGB2YUV 	0
+#define MDP_CCS_YUV2RGB 	1
+
+#define MDP_CCS_SIZE	9
+#define MDP_BV_SIZE	3
+
+struct mdp_ccs {
+	int direction;			/* MDP_CCS_RGB2YUV or YUV2RGB */
+	uint16_t ccs[MDP_CCS_SIZE];	/* 3x3 color coefficients */
+	uint16_t bv[MDP_BV_SIZE];	/* 1x3 bias vector */
+};
+
+struct mdp_csc {
+	int id;
+	uint32_t csc_mv[9];
+	uint32_t csc_pre_bv[3];
+	uint32_t csc_post_bv[3];
+	uint32_t csc_pre_lv[6];
+	uint32_t csc_post_lv[6];
+};
+
+/* The version of the mdp_blit_req structure so that
+ * user applications can selectively decide which functionality
+ * to include
+ */
+
+#define MDP_BLIT_REQ_VERSION 2
+
+struct mdp_blit_req {
+	struct mdp_img src;
+	struct mdp_img dst;
+	struct mdp_rect src_rect;
+	struct mdp_rect dst_rect;
+	uint32_t alpha;
+	uint32_t transp_mask;
+	uint32_t flags;
+	int sharpening_strength;  /* -127 <--> 127, default 64 */
+};
+
+struct mdp_blit_req_list {
+	uint32_t count;
+	struct mdp_blit_req req[];
+};
+
+#define MSMFB_DATA_VERSION 2
+
+struct msmfb_data {
+	uint32_t offset;
+	int memory_id;
+	int id;
+	uint32_t flags;
+	uint32_t priv;
+	uint32_t iova;
+};
+
+#define MSMFB_NEW_REQUEST -1
+
+struct msmfb_overlay_data {
+	uint32_t id;
+	struct msmfb_data data;
+	uint32_t version_key;
+	struct msmfb_data plane1_data;
+	struct msmfb_data plane2_data;
+	struct msmfb_data dst_data;
+};
+
+struct msmfb_img {
+	uint32_t width;
+	uint32_t height;
+	uint32_t format;
+};
+
+#define MSMFB_WRITEBACK_DEQUEUE_BLOCKING 0x1
+struct msmfb_writeback_data {
+	struct msmfb_data buf_info;
+	struct msmfb_img img;
+};
+
+#define MDP_PP_OPS_READ 0x2
+#define MDP_PP_OPS_WRITE 0x4
+
+struct mdp_qseed_cfg {
+	uint32_t table_num;
+	uint32_t ops;
+	uint32_t len;
+	uint32_t *data;
+};
+
+struct mdp_qseed_cfg_data {
+	uint32_t block;
+	struct mdp_qseed_cfg qseed_data;
+};
+
+#define MDP_OVERLAY_PP_CSC_CFG      0x1
+#define MDP_OVERLAY_PP_QSEED_CFG    0x2
+
+#define MDP_CSC_FLAG_ENABLE	0x1
+#define MDP_CSC_FLAG_YUV_IN	0x2
+#define MDP_CSC_FLAG_YUV_OUT	0x4
+
+struct mdp_csc_cfg {
+	/* flags for enable CSC, toggling RGB,YUV input/output */
+	uint32_t flags;
+	uint32_t csc_mv[9];
+	uint32_t csc_pre_bv[3];
+	uint32_t csc_post_bv[3];
+	uint32_t csc_pre_lv[6];
+	uint32_t csc_post_lv[6];
+};
+
+struct mdp_csc_cfg_data {
+	uint32_t block;
+	struct mdp_csc_cfg csc_data;
+};
+
+struct mdp_overlay_pp_params {
+	uint32_t config_ops;
+	struct mdp_csc_cfg csc_cfg;
+	struct mdp_qseed_cfg qseed_cfg[2];
+};
+
+struct mdp_overlay {
+	struct msmfb_img src;
+	struct mdp_rect src_rect;
+	struct mdp_rect dst_rect;
+	uint32_t z_order;	/* stage number */
+	uint32_t is_fg;		/* control alpha & transp */
+	uint32_t alpha;
+	uint32_t transp_mask;
+	uint32_t flags;
+	uint32_t id;
+	uint32_t user_data[8];
+	struct mdp_overlay_pp_params overlay_pp_cfg;
+};
+
+struct msmfb_overlay_3d {
+	uint32_t is_3d;
+	uint32_t width;
+	uint32_t height;
+};
+
+
+struct msmfb_overlay_blt {
+	uint32_t enable;
+	uint32_t offset;
+	uint32_t width;
+	uint32_t height;
+	uint32_t bpp;
+};
+
+struct mdp_histogram {
+	uint32_t frame_cnt;
+	uint32_t bin_cnt;
+	uint32_t *r;
+	uint32_t *g;
+	uint32_t *b;
+};
+
+
+/*
+
+	mdp_block_type defines the identifiers for each of pipes in MDP 4.3
+
+	MDP_BLOCK_RESERVED is provided for backward compatibility and is
+	deprecated. It corresponds to DMA_P. So MDP_BLOCK_DMA_P should be used
+	instead.
+
+*/
+
+enum {
+	MDP_BLOCK_RESERVED = 0,
+	MDP_BLOCK_OVERLAY_0,
+	MDP_BLOCK_OVERLAY_1,
+	MDP_BLOCK_VG_1,
+	MDP_BLOCK_VG_2,
+	MDP_BLOCK_RGB_1,
+	MDP_BLOCK_RGB_2,
+	MDP_BLOCK_DMA_P,
+	MDP_BLOCK_DMA_S,
+	MDP_BLOCK_DMA_E,
+	MDP_BLOCK_OVERLAY_2,
+	MDP_BLOCK_MAX,
+};
+
+/*
+ * mdp_histogram_start_req is used to provide the parameters for
+ * histogram start request
+ */
+
+struct mdp_histogram_start_req {
+	uint32_t block;
+	uint8_t frame_cnt;
+	uint8_t bit_mask;
+	uint8_t num_bins;
+};
+
+/*
+ * mdp_histogram_data is used to return the histogram data, once
+ * the histogram is done/stopped/cance
+ */
+
+struct mdp_histogram_data {
+	uint32_t block;
+	uint8_t bin_cnt;
+	uint32_t *c0;
+	uint32_t *c1;
+	uint32_t *c2;
+	uint32_t *extra_info;
+};
+
+struct mdp_pcc_coeff {
+	uint32_t c, r, g, b, rr, gg, bb, rg, gb, rb, rgb_0, rgb_1;
+};
+
+struct mdp_pcc_cfg_data {
+	uint32_t block;
+	uint32_t ops;
+	struct mdp_pcc_coeff r, g, b;
+};
+
+enum {
+	mdp_lut_igc,
+	mdp_lut_pgc,
+	mdp_lut_hist,
+	mdp_lut_max,
+};
+
+struct mdp_igc_lut_data {
+	uint32_t block;
+	uint32_t len, ops;
+	uint32_t *c0_c1_data;
+	uint32_t *c2_data;
+};
+
+struct mdp_ar_gc_lut_data {
+	uint32_t x_start;
+	uint32_t slope;
+	uint32_t offset;
+};
+
+struct mdp_pgc_lut_data {
+	uint32_t block;
+	uint32_t flags;
+	uint8_t num_r_stages;
+	uint8_t num_g_stages;
+	uint8_t num_b_stages;
+	struct mdp_ar_gc_lut_data *r_data;
+	struct mdp_ar_gc_lut_data *g_data;
+	struct mdp_ar_gc_lut_data *b_data;
+};
+
+
+struct mdp_hist_lut_data {
+	uint32_t block;
+	uint32_t ops;
+	uint32_t len;
+	uint32_t *data;
+};
+
+struct mdp_lut_cfg_data {
+	uint32_t lut_type;
+	union {
+		struct mdp_igc_lut_data igc_lut_data;
+		struct mdp_pgc_lut_data pgc_lut_data;
+		struct mdp_hist_lut_data hist_lut_data;
+	} data;
+};
+
+struct mdp_bl_scale_data {
+	uint32_t min_lvl;
+	uint32_t scale;
+};
+
+enum {
+	mdp_op_pcc_cfg,
+	mdp_op_csc_cfg,
+	mdp_op_lut_cfg,
+	mdp_op_qseed_cfg,
+	mdp_bl_scale_cfg,
+	mdp_op_max,
+};
+
+struct msmfb_mdp_pp {
+	uint32_t op;
+	union {
+		struct mdp_pcc_cfg_data pcc_cfg_data;
+		struct mdp_csc_cfg_data csc_cfg_data;
+		struct mdp_lut_cfg_data lut_cfg_data;
+		struct mdp_qseed_cfg_data qseed_cfg_data;
+		struct mdp_bl_scale_data bl_scale_data;
+	} data;
+};
+
+#define MDP_MAX_FENCE_FD	10
+#define MDP_BUF_SYNC_FLAG_WAIT	1
+
+struct mdp_buf_sync {
+	uint32_t flags;
+	uint32_t acq_fen_fd_cnt;
+	int *acq_fen_fd;
+	int *rel_fen_fd;
+};
+
+struct mdp_buf_fence {
+	uint32_t flags;
+	uint32_t acq_fen_fd_cnt;
+	int acq_fen_fd[MDP_MAX_FENCE_FD];
+	int rel_fen_fd[MDP_MAX_FENCE_FD];
+};
+
+#define MDP_DISPLAY_COMMIT_OVERLAY 0x00000001
+
+struct mdp_display_commit {
+	uint32_t flags;
+	uint32_t wait_for_finish;
+	struct fb_var_screeninfo var;
+	struct mdp_buf_fence buf_fence;
+};
+
+struct mdp_page_protection {
+	uint32_t page_protection;
+};
+
+
+struct mdp_mixer_info {
+	int pndx;
+	int pnum;
+	int ptype;
+	int mixer_num;
+	int z_order;
+};
+
+#define MAX_PIPE_PER_MIXER  4
+
+struct msmfb_mixer_info_req {
+	int mixer_num;
+	int cnt;
+	struct mdp_mixer_info info[MAX_PIPE_PER_MIXER];
+};
+
+enum {
+	DISPLAY_SUBSYSTEM_ID,
+	ROTATOR_SUBSYSTEM_ID,
+};
+
+#ifdef __KERNEL__
+
+/* get the framebuffer physical address information */
+int get_fb_phys_info(unsigned long *start, unsigned long *len, int fb_num,
+	int subsys_id);
+struct fb_info *msm_fb_get_writeback_fb(void);
+int msm_fb_writeback_init(struct fb_info *info);
+int msm_fb_writeback_start(struct fb_info *info);
+int msm_fb_writeback_queue_buffer(struct fb_info *info,
+		struct msmfb_data *data);
+int msm_fb_writeback_dequeue_buffer(struct fb_info *info,
+		struct msmfb_data *data);
+int msm_fb_writeback_stop(struct fb_info *info);
+int msm_fb_writeback_terminate(struct fb_info *info);
+#endif
+
+#endif /*_MSM_MDP_H_*/