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gerrit-public.fairphone.software / kernel / msm-4.9 / effb5eed21894dc6d43c207fdbe38ea5616c0023 / . / drivers / media / platform / msm / sde / rotator / sde_rotator_r3.c
blob: fa15fac9740225df2094e0cc8376b10d13ef4333 [file] [log] [blame]
/* Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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.
*
*/
#define pr_fmt(fmt) "%s: " fmt, __func__
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/sync.h>
#include <linux/delay.h>
#include <linux/debugfs.h>
#include <linux/interrupt.h>
#include <linux/dma-mapping.h>
#include <linux/dma-buf.h>
#include <linux/msm_ion.h>
#include "sde_rotator_core.h"
#include "sde_rotator_util.h"
#include "sde_rotator_smmu.h"
#include "sde_rotator_r3.h"
#include "sde_rotator_r3_internal.h"
#include "sde_rotator_r3_hwio.h"
#include "sde_rotator_r3_debug.h"
#include "sde_rotator_trace.h"
/* XIN mapping */
#define XIN_SSPP 0
#define XIN_WRITEBACK 1
/* wait for at most 2 vsync for lowest refresh rate (24hz) */
#define KOFF_TIMEOUT msecs_to_jiffies(42 * 32)
/* Macro for constructing the REGDMA command */
#define SDE_REGDMA_WRITE(p, off, data) \
do { \
*p++ = REGDMA_OP_REGWRITE | \
((off) & REGDMA_ADDR_OFFSET_MASK); \
*p++ = (data); \
} while (0)
#define SDE_REGDMA_MODIFY(p, off, mask, data) \
do { \
*p++ = REGDMA_OP_REGMODIFY | \
((off) & REGDMA_ADDR_OFFSET_MASK); \
*p++ = (mask); \
*p++ = (data); \
} while (0)
#define SDE_REGDMA_BLKWRITE_INC(p, off, len) \
do { \
*p++ = REGDMA_OP_BLKWRITE_INC | \
((off) & REGDMA_ADDR_OFFSET_MASK); \
*p++ = (len); \
} while (0)
#define SDE_REGDMA_BLKWRITE_DATA(p, data) \
do { \
*(p) = (data); \
(p)++; \
} while (0)
/* Macro for directly accessing mapped registers */
#define SDE_ROTREG_WRITE(base, off, data) \
writel_relaxed(data, (base + (off)))
#define SDE_ROTREG_READ(base, off) \
readl_relaxed(base + (off))
/**
* sde_hw_rotator_get_ctx(): Retrieve rotator context from rotator HW based
* on provided session_id. Each rotator has a different session_id.
*/
static struct sde_hw_rotator_context *sde_hw_rotator_get_ctx(
struct sde_hw_rotator *rot, u32 session_id,
enum sde_rot_queue_prio q_id)
{
int i;
struct sde_hw_rotator_context *ctx = NULL;
for (i = 0; i < SDE_HW_ROT_REGDMA_TOTAL_CTX; i++) {
ctx = rot->rotCtx[q_id][i];
if (ctx && (ctx->session_id == session_id)) {
SDEROT_DBG(
"rotCtx sloti[%d][%d] ==> ctx:%p | session-id:%d\n",
q_id, i, ctx, ctx->session_id);
return ctx;
}
}
return NULL;
}
/*
* sde_hw_rotator_map_vaddr - map the debug buffer to kernel space
* @dbgbuf: Pointer to debug buffer
* @buf: Pointer to layer buffer structure
* @data: Pointer to h/w mapped buffer structure
*/
static void sde_hw_rotator_map_vaddr(struct sde_dbg_buf *dbgbuf,
struct sde_layer_buffer *buf, struct sde_mdp_data *data)
{
dbgbuf->dmabuf = data->p[0].srcp_dma_buf;
dbgbuf->buflen = data->p[0].srcp_dma_buf->size;
dbgbuf->vaddr = NULL;
dbgbuf->width = buf->width;
dbgbuf->height = buf->height;
if (dbgbuf->dmabuf && (dbgbuf->buflen > 0)) {
dma_buf_begin_cpu_access(dbgbuf->dmabuf, 0, dbgbuf->buflen,
DMA_FROM_DEVICE);
dbgbuf->vaddr = dma_buf_kmap(dbgbuf->dmabuf, 0);
SDEROT_DBG("vaddr mapping: 0x%p/%ld w:%d/h:%d\n",
dbgbuf->vaddr, dbgbuf->buflen,
dbgbuf->width, dbgbuf->height);
}
}
/*
* sde_hw_rotator_unmap_vaddr - unmap the debug buffer from kernel space
* @dbgbuf: Pointer to debug buffer
*/
static void sde_hw_rotator_unmap_vaddr(struct sde_dbg_buf *dbgbuf)
{
if (dbgbuf->vaddr) {
dma_buf_kunmap(dbgbuf->dmabuf, 0, dbgbuf->vaddr);
dma_buf_end_cpu_access(dbgbuf->dmabuf, 0, dbgbuf->buflen,
DMA_FROM_DEVICE);
}
dbgbuf->vaddr = NULL;
dbgbuf->dmabuf = NULL;
dbgbuf->buflen = 0;
dbgbuf->width = 0;
dbgbuf->height = 0;
}
/*
* sde_hw_rotator_setup_timestamp_packet - setup timestamp writeback command
* @ctx: Pointer to rotator context
* @mask: Bit mask location of the timestamp
* @swts: Software timestamp
*/
static void sde_hw_rotator_setup_timestamp_packet(
struct sde_hw_rotator_context *ctx, u32 mask, u32 swts)
{
u32 *wrptr;
wrptr = sde_hw_rotator_get_regdma_segment(ctx);
/*
* Create a dummy packet write out to 1 location for timestamp
* generation.
*/
SDE_REGDMA_BLKWRITE_INC(wrptr, ROT_SSPP_SRC_SIZE, 6);
SDE_REGDMA_BLKWRITE_DATA(wrptr, 0x00010001);
SDE_REGDMA_BLKWRITE_DATA(wrptr, 0);
SDE_REGDMA_BLKWRITE_DATA(wrptr, 0);
SDE_REGDMA_BLKWRITE_DATA(wrptr, 0x00010001);
SDE_REGDMA_BLKWRITE_DATA(wrptr, 0);
SDE_REGDMA_BLKWRITE_DATA(wrptr, ctx->ts_addr);
SDE_REGDMA_WRITE(wrptr, ROT_SSPP_SRC_YSTRIDE0, 4);
SDE_REGDMA_BLKWRITE_INC(wrptr, ROT_SSPP_SRC_FORMAT, 4);
SDE_REGDMA_BLKWRITE_DATA(wrptr, 0x004037FF);
SDE_REGDMA_BLKWRITE_DATA(wrptr, 0x03020100);
SDE_REGDMA_BLKWRITE_DATA(wrptr, 0x80000000);
SDE_REGDMA_BLKWRITE_DATA(wrptr, ctx->timestamp);
SDE_REGDMA_BLKWRITE_INC(wrptr, ROT_WB_DST_FORMAT, 4);
SDE_REGDMA_BLKWRITE_DATA(wrptr, 0x000037FF);
SDE_REGDMA_BLKWRITE_DATA(wrptr, 0);
SDE_REGDMA_BLKWRITE_DATA(wrptr, 0x03020100);
SDE_REGDMA_BLKWRITE_DATA(wrptr, ctx->ts_addr);
SDE_REGDMA_WRITE(wrptr, ROT_WB_DST_YSTRIDE0, 4);
SDE_REGDMA_WRITE(wrptr, ROT_WB_OUT_SIZE, 0x00010001);
SDE_REGDMA_WRITE(wrptr, ROT_WB_OUT_IMG_SIZE, 0x00010001);
SDE_REGDMA_WRITE(wrptr, ROT_WB_OUT_XY, 0);
SDE_REGDMA_WRITE(wrptr, ROTTOP_DNSC, 0);
SDE_REGDMA_WRITE(wrptr, ROTTOP_OP_MODE, 1);
SDE_REGDMA_MODIFY(wrptr, REGDMA_TIMESTAMP_REG, mask, swts);
SDE_REGDMA_WRITE(wrptr, ROTTOP_START_CTRL, 1);
sde_hw_rotator_put_regdma_segment(ctx, wrptr);
}
/*
* sde_hw_rotator_setup_fetchengine - setup fetch engine
* @ctx: Pointer to rotator context
* @queue_id: Priority queue identifier
* @cfg: Fetch configuration
* @danger_lut: real-time QoS LUT for danger setting (not used)
* @safe_lut: real-time QoS LUT for safe setting (not used)
* @flags: Control flag
*/
static void sde_hw_rotator_setup_fetchengine(struct sde_hw_rotator_context *ctx,
enum sde_rot_queue_prio queue_id,
struct sde_hw_rot_sspp_cfg *cfg, u32 danger_lut, u32 safe_lut,
u32 flags)
{
struct sde_hw_rotator *rot = ctx->rot;
struct sde_mdp_format_params *fmt;
struct sde_mdp_data *data;
u32 *wrptr;
u32 opmode = 0;
u32 chroma_samp = 0;
u32 src_format = 0;
u32 unpack = 0;
u32 width = cfg->img_width;
u32 height = cfg->img_height;
u32 fetch_blocksize = 0;
int i;
if (ctx->rot->mode == ROT_REGDMA_ON) {
SDE_ROTREG_WRITE(rot->mdss_base, REGDMA_CSR_REGDMA_INT_EN,
REGDMA_INT_MASK);
SDE_ROTREG_WRITE(rot->mdss_base, REGDMA_CSR_REGDMA_OP_MODE,
REGDMA_EN);
}
wrptr = sde_hw_rotator_get_regdma_segment(ctx);
/* source image setup */
if ((flags & SDE_ROT_FLAG_DEINTERLACE)
&& !(flags & SDE_ROT_FLAG_SOURCE_ROTATED_90)) {
for (i = 0; i < cfg->src_plane.num_planes; i++)
cfg->src_plane.ystride[i] *= 2;
width *= 2;
height /= 2;
}
/*
* REGDMA BLK write from SRC_SIZE to OP_MODE, total 15 registers
*/
SDE_REGDMA_BLKWRITE_INC(wrptr, ROT_SSPP_SRC_SIZE, 15);
/* SRC_SIZE, SRC_IMG_SIZE, SRC_XY, OUT_SIZE, OUT_XY */
SDE_REGDMA_BLKWRITE_DATA(wrptr,
cfg->src_rect->w | (cfg->src_rect->h << 16));
SDE_REGDMA_BLKWRITE_DATA(wrptr, 0); /* SRC_IMG_SIZE unused */
SDE_REGDMA_BLKWRITE_DATA(wrptr,
cfg->src_rect->x | (cfg->src_rect->y << 16));
SDE_REGDMA_BLKWRITE_DATA(wrptr,
cfg->src_rect->w | (cfg->src_rect->h << 16));
SDE_REGDMA_BLKWRITE_DATA(wrptr,
cfg->src_rect->x | (cfg->src_rect->y << 16));
/* SRC_ADDR [0-3], SRC_YSTRIDE [0-1] */
data = cfg->data;
for (i = 0; i < SDE_ROT_MAX_PLANES; i++)
SDE_REGDMA_BLKWRITE_DATA(wrptr, data->p[i].addr);
SDE_REGDMA_BLKWRITE_DATA(wrptr, cfg->src_plane.ystride[0] |
(cfg->src_plane.ystride[1] << 16));
SDE_REGDMA_BLKWRITE_DATA(wrptr, cfg->src_plane.ystride[2] |
(cfg->src_plane.ystride[3] << 16));
/* UNUSED, write 0 */
SDE_REGDMA_BLKWRITE_DATA(wrptr, 0);
/* setup source format */
fmt = cfg->fmt;
chroma_samp = fmt->chroma_sample;
if (flags & SDE_ROT_FLAG_SOURCE_ROTATED_90) {
if (chroma_samp == SDE_MDP_CHROMA_H2V1)
chroma_samp = SDE_MDP_CHROMA_H1V2;
else if (chroma_samp == SDE_MDP_CHROMA_H1V2)
chroma_samp = SDE_MDP_CHROMA_H2V1;
}
src_format = (chroma_samp << 23) |
(fmt->fetch_planes << 19) |
(fmt->bits[C3_ALPHA] << 6) |
(fmt->bits[C2_R_Cr] << 4) |
(fmt->bits[C1_B_Cb] << 2) |
(fmt->bits[C0_G_Y] << 0);
if (fmt->alpha_enable &&
(fmt->fetch_planes == SDE_MDP_PLANE_INTERLEAVED))
src_format |= BIT(8); /* SRCC3_EN */
src_format |= ((fmt->unpack_count - 1) << 12) |
(fmt->unpack_tight << 17) |
(fmt->unpack_align_msb << 18) |
((fmt->bpp - 1) << 9) |
((fmt->frame_format & 3) << 30);
if (flags & SDE_ROT_FLAG_ROT_90)
src_format |= BIT(11); /* ROT90 */
if (sde_mdp_is_ubwc_format(fmt))
opmode |= BIT(0); /* BWC_DEC_EN */
/* if this is YUV pixel format, enable CSC */
if (sde_mdp_is_yuv_format(fmt))
src_format |= BIT(15); /* SRC_COLOR_SPACE */
if (fmt->pixel_mode == SDE_MDP_PIXEL_10BIT)
src_format |= BIT(14); /* UNPACK_DX_FORMAT */
/* SRC_FORMAT */
SDE_REGDMA_BLKWRITE_DATA(wrptr, src_format);
/* setup source unpack pattern */
unpack = (fmt->element[3] << 24) | (fmt->element[2] << 16) |
(fmt->element[1] << 8) | (fmt->element[0] << 0);
/* SRC_UNPACK_PATTERN */
SDE_REGDMA_BLKWRITE_DATA(wrptr, unpack);
/* setup source op mode */
if (flags & SDE_ROT_FLAG_FLIP_LR)
opmode |= BIT(13); /* FLIP_MODE L/R horizontal flip */
if (flags & SDE_ROT_FLAG_FLIP_UD)
opmode |= BIT(14); /* FLIP_MODE U/D vertical flip */
opmode |= BIT(31); /* MDSS_MDP_OP_PE_OVERRIDE */
/* SRC_OP_MODE */
SDE_REGDMA_BLKWRITE_DATA(wrptr, opmode);
/* setup source fetch config, TP10 uses different block size */
if (sde_mdp_is_tp10_format(fmt))
fetch_blocksize = SDE_ROT_SSPP_FETCH_BLOCKSIZE_96;
else
fetch_blocksize = SDE_ROT_SSPP_FETCH_BLOCKSIZE_128;
SDE_REGDMA_WRITE(wrptr, ROT_SSPP_FETCH_CONFIG,
fetch_blocksize |
SDE_ROT_SSPP_FETCH_CONFIG_RESET_VALUE |
((rot->highest_bank & 0x3) << 18));
/* setup source buffer plane security status */
if (flags & SDE_ROT_FLAG_SECURE_OVERLAY_SESSION) {
SDE_REGDMA_WRITE(wrptr, ROT_SSPP_SRC_ADDR_SW_STATUS, 0xF);
ctx->is_secure = true;
}
/* Update command queue write ptr */
sde_hw_rotator_put_regdma_segment(ctx, wrptr);
}
/*
* sde_hw_rotator_setup_wbengine - setup writeback engine
* @ctx: Pointer to rotator context
* @queue_id: Priority queue identifier
* @cfg: Writeback configuration
* @flags: Control flag
*/
static void sde_hw_rotator_setup_wbengine(struct sde_hw_rotator_context *ctx,
enum sde_rot_queue_prio queue_id,
struct sde_hw_rot_wb_cfg *cfg,
u32 flags)
{
struct sde_mdp_format_params *fmt;
u32 *wrptr;
u32 pack = 0;
u32 dst_format = 0;
int i;
wrptr = sde_hw_rotator_get_regdma_segment(ctx);
fmt = cfg->fmt;
/* setup WB DST format */
dst_format |= (fmt->chroma_sample << 23) |
(fmt->fetch_planes << 19) |
(fmt->bits[C3_ALPHA] << 6) |
(fmt->bits[C2_R_Cr] << 4) |
(fmt->bits[C1_B_Cb] << 2) |
(fmt->bits[C0_G_Y] << 0);
/* alpha control */
if (fmt->bits[C3_ALPHA] || fmt->alpha_enable) {
dst_format |= BIT(8);
if (!fmt->alpha_enable) {
dst_format |= BIT(14);
SDE_REGDMA_WRITE(wrptr, ROT_WB_DST_ALPHA_X_VALUE, 0);
}
}
dst_format |= ((fmt->unpack_count - 1) << 12) |
(fmt->unpack_tight << 17) |
(fmt->unpack_align_msb << 18) |
((fmt->bpp - 1) << 9) |
((fmt->frame_format & 3) << 30);
if (sde_mdp_is_yuv_format(fmt))
dst_format |= BIT(15);
if (fmt->pixel_mode == SDE_MDP_PIXEL_10BIT)
dst_format |= BIT(21); /* PACK_DX_FORMAT */
/*
* REGDMA BLK write, from DST_FORMAT to DST_YSTRIDE 1, total 9 regs
*/
SDE_REGDMA_BLKWRITE_INC(wrptr, ROT_WB_DST_FORMAT, 9);
/* DST_FORMAT */
SDE_REGDMA_BLKWRITE_DATA(wrptr, dst_format);
/* DST_OP_MODE */
if (sde_mdp_is_ubwc_format(fmt))
SDE_REGDMA_BLKWRITE_DATA(wrptr, BIT(0));
else
SDE_REGDMA_BLKWRITE_DATA(wrptr, 0);
/* DST_PACK_PATTERN */
pack = (fmt->element[3] << 24) | (fmt->element[2] << 16) |
(fmt->element[1] << 8) | (fmt->element[0] << 0);
SDE_REGDMA_BLKWRITE_DATA(wrptr, pack);
/* DST_ADDR [0-3], DST_YSTRIDE [0-1] */
for (i = 0; i < SDE_ROT_MAX_PLANES; i++)
SDE_REGDMA_BLKWRITE_DATA(wrptr, cfg->data->p[i].addr);
SDE_REGDMA_BLKWRITE_DATA(wrptr, cfg->dst_plane.ystride[0] |
(cfg->dst_plane.ystride[1] << 16));
SDE_REGDMA_BLKWRITE_DATA(wrptr, cfg->dst_plane.ystride[2] |
(cfg->dst_plane.ystride[3] << 16));
/* setup WB out image size and ROI */
SDE_REGDMA_WRITE(wrptr, ROT_WB_OUT_IMG_SIZE,
cfg->img_width | (cfg->img_height << 16));
SDE_REGDMA_WRITE(wrptr, ROT_WB_OUT_SIZE,
cfg->dst_rect->w | (cfg->dst_rect->h << 16));
SDE_REGDMA_WRITE(wrptr, ROT_WB_OUT_XY,
cfg->dst_rect->x | (cfg->dst_rect->y << 16));
/*
* setup Downscale factor
*/
SDE_REGDMA_WRITE(wrptr, ROTTOP_DNSC,
cfg->v_downscale_factor |
(cfg->h_downscale_factor << 16));
/* write config setup for bank configration */
SDE_REGDMA_WRITE(wrptr, ROT_WB_DST_WRITE_CONFIG,
(ctx->rot->highest_bank & 0x3) << 8);
if (flags & SDE_ROT_FLAG_ROT_90)
SDE_REGDMA_WRITE(wrptr, ROTTOP_OP_MODE, 0x3);
else
SDE_REGDMA_WRITE(wrptr, ROTTOP_OP_MODE, 0x1);
/* Update command queue write ptr */
sde_hw_rotator_put_regdma_segment(ctx, wrptr);
}
/*
* sde_hw_rotator_start_no_regdma - start non-regdma operation
* @ctx: Pointer to rotator context
* @queue_id: Priority queue identifier
*/
static u32 sde_hw_rotator_start_no_regdma(struct sde_hw_rotator_context *ctx,
enum sde_rot_queue_prio queue_id)
{
struct sde_hw_rotator *rot = ctx->rot;
u32 *wrptr;
u32 *rdptr;
u8 *addr;
u32 mask;
u32 blksize;
rdptr = sde_hw_rotator_get_regdma_segment_base(ctx);
wrptr = sde_hw_rotator_get_regdma_segment(ctx);
if (rot->irq_num >= 0) {
SDE_REGDMA_WRITE(wrptr, ROTTOP_INTR_EN, 1);
SDE_REGDMA_WRITE(wrptr, ROTTOP_INTR_CLEAR, 1);
reinit_completion(&ctx->rot_comp);
enable_irq(rot->irq_num);
}
SDE_REGDMA_WRITE(wrptr, ROTTOP_START_CTRL, 1);
/* Update command queue write ptr */
sde_hw_rotator_put_regdma_segment(ctx, wrptr);
SDEROT_DBG("BEGIN %d\n", ctx->timestamp);
/* Write all command stream to Rotator blocks */
/* Rotator will start right away after command stream finish writing */
while (rdptr < wrptr) {
u32 op = REGDMA_OP_MASK & *rdptr;
switch (op) {
case REGDMA_OP_NOP:
SDEROT_DBG("NOP\n");
rdptr++;
break;
case REGDMA_OP_REGWRITE:
SDEROT_DBG("REGW %6.6x %8.8x\n",
rdptr[0] & REGDMA_ADDR_OFFSET_MASK,
rdptr[1]);
addr = rot->mdss_base +
(*rdptr++ & REGDMA_ADDR_OFFSET_MASK);
writel_relaxed(*rdptr++, addr);
break;
case REGDMA_OP_REGMODIFY:
SDEROT_DBG("REGM %6.6x %8.8x %8.8x\n",
rdptr[0] & REGDMA_ADDR_OFFSET_MASK,
rdptr[1], rdptr[2]);
addr = rot->mdss_base +
(*rdptr++ & REGDMA_ADDR_OFFSET_MASK);
mask = *rdptr++;
writel_relaxed((readl_relaxed(addr) & mask) | *rdptr++,
addr);
break;
case REGDMA_OP_BLKWRITE_SINGLE:
SDEROT_DBG("BLKWS %6.6x %6.6x\n",
rdptr[0] & REGDMA_ADDR_OFFSET_MASK,
rdptr[1]);
addr = rot->mdss_base +
(*rdptr++ & REGDMA_ADDR_OFFSET_MASK);
blksize = *rdptr++;
while (blksize--) {
SDEROT_DBG("DATA %8.8x\n", rdptr[0]);
writel_relaxed(*rdptr++, addr);
}
break;
case REGDMA_OP_BLKWRITE_INC:
SDEROT_DBG("BLKWI %6.6x %6.6x\n",
rdptr[0] & REGDMA_ADDR_OFFSET_MASK,
rdptr[1]);
addr = rot->mdss_base +
(*rdptr++ & REGDMA_ADDR_OFFSET_MASK);
blksize = *rdptr++;
while (blksize--) {
SDEROT_DBG("DATA %8.8x\n", rdptr[0]);
writel_relaxed(*rdptr++, addr);
addr += 4;
}
break;
default:
/* Other not supported OP mode
* Skip data for now for unregonized OP mode
*/
SDEROT_DBG("UNDEFINED\n");
rdptr++;
break;
}
}
SDEROT_DBG("END %d\n", ctx->timestamp);
return ctx->timestamp;
}
/*
* sde_hw_rotator_start_regdma - start regdma operation
* @ctx: Pointer to rotator context
* @queue_id: Priority queue identifier
*/
static u32 sde_hw_rotator_start_regdma(struct sde_hw_rotator_context *ctx,
enum sde_rot_queue_prio queue_id)
{
struct sde_hw_rotator *rot = ctx->rot;
u32 *wrptr;
u32 regdmaSlot;
u32 offset;
long length;
long ts_length;
u32 enableInt;
u32 swts = 0;
u32 mask = 0;
wrptr = sde_hw_rotator_get_regdma_segment(ctx);
if (rot->irq_num >= 0)
reinit_completion(&ctx->regdma_comp);
/* enable IRQ for first regdma submission from idle */
if (atomic_read(&rot->regdma_submit_count) ==
atomic_read(&rot->regdma_done_count)) {
SDEROT_DBG("Enable IRQ! regdma submitcnt==donecnt -> %d\n",
atomic_read(&rot->regdma_submit_count));
enable_irq(rot->irq_num);
}
/*
* Last ROT command must be ROT_START before REGDMA start
*/
SDE_REGDMA_WRITE(wrptr, ROTTOP_START_CTRL, 1);
sde_hw_rotator_put_regdma_segment(ctx, wrptr);
/*
* Start REGDMA with command offset and size
*/
regdmaSlot = sde_hw_rotator_get_regdma_ctxidx(ctx);
length = ((long)wrptr - (long)ctx->regdma_base) / 4;
offset = (u32)(ctx->regdma_base - (u32 *)(rot->mdss_base +
REGDMA_RAM_REGDMA_CMD_RAM));
enableInt = ((ctx->timestamp & 1) + 1) << 30;
SDEROT_DBG(
"regdma(%d)[%d] <== INT:0x%X|length:%ld|offset:0x%X, ts:%X\n",
queue_id, regdmaSlot, enableInt, length, offset,
ctx->timestamp);
/* ensure the command packet is issued before the submit command */
wmb();
/* REGDMA submission for current context */
if (queue_id == ROT_QUEUE_HIGH_PRIORITY) {
SDE_ROTREG_WRITE(rot->mdss_base,
REGDMA_CSR_REGDMA_QUEUE_0_SUBMIT,
(length << 14) | offset);
swts = ctx->timestamp;
mask = ~SDE_REGDMA_SWTS_MASK;
} else {
SDE_ROTREG_WRITE(rot->mdss_base,
REGDMA_CSR_REGDMA_QUEUE_1_SUBMIT,
(length << 14) | offset);
swts = ctx->timestamp << SDE_REGDMA_SWTS_SHIFT;
mask = ~(SDE_REGDMA_SWTS_MASK << SDE_REGDMA_SWTS_SHIFT);
}
/* Write timestamp after previous rotator job finished */
sde_hw_rotator_setup_timestamp_packet(ctx, mask, swts);
offset += length;
ts_length = sde_hw_rotator_get_regdma_segment(ctx) - wrptr;
WARN_ON((length + ts_length) > SDE_HW_ROT_REGDMA_SEG_SIZE);
/* ensure command packet is issue before the submit command */
wmb();
if (queue_id == ROT_QUEUE_HIGH_PRIORITY) {
SDE_ROTREG_WRITE(rot->mdss_base,
REGDMA_CSR_REGDMA_QUEUE_0_SUBMIT,
enableInt | (ts_length << 14) | offset);
} else {
SDE_ROTREG_WRITE(rot->mdss_base,
REGDMA_CSR_REGDMA_QUEUE_1_SUBMIT,
enableInt | (ts_length << 14) | offset);
}
/* Update REGDMA submit count */
atomic_inc(&rot->regdma_submit_count);
/* Update command queue write ptr */
sde_hw_rotator_put_regdma_segment(ctx, wrptr);
return ctx->timestamp;
}
/*
* sde_hw_rotator_wait_done_no_regdma - wait for non-regdma completion
* @ctx: Pointer to rotator context
* @queue_id: Priority queue identifier
* @flags: Option flag
*/
static u32 sde_hw_rotator_wait_done_no_regdma(
struct sde_hw_rotator_context *ctx,
enum sde_rot_queue_prio queue_id, u32 flag)
{
struct sde_hw_rotator *rot = ctx->rot;
int rc = 0;
u32 sts = 0;
u32 status;
unsigned long flags;
if (rot->irq_num >= 0) {
SDEROT_DBG("Wait for Rotator completion\n");
rc = wait_for_completion_timeout(&ctx->rot_comp,
KOFF_TIMEOUT);
spin_lock_irqsave(&rot->rotisr_lock, flags);
status = SDE_ROTREG_READ(rot->mdss_base, ROTTOP_STATUS);
if (rc == 0) {
/*
* Timeout, there might be error,
* or rotator still busy
*/
if (status & ROT_BUSY_BIT)
SDEROT_ERR(
"Timeout waiting for rotator done\n");
else if (status & ROT_ERROR_BIT)
SDEROT_ERR(
"Rotator report error status\n");
else
SDEROT_WARN(
"Timeout waiting, but rotator job is done!!\n");
disable_irq_nosync(rot->irq_num);
}
spin_unlock_irqrestore(&rot->rotisr_lock, flags);
} else {
int cnt = 200;
do {
udelay(500);
status = SDE_ROTREG_READ(rot->mdss_base, ROTTOP_STATUS);
cnt--;
} while ((cnt > 0) && (status & ROT_BUSY_BIT)
&& ((status & ROT_ERROR_BIT) == 0));
if (status & ROT_ERROR_BIT)
SDEROT_ERR("Rotator error\n");
else if (status & ROT_BUSY_BIT)
SDEROT_ERR("Rotator busy\n");
SDE_ROTREG_WRITE(rot->mdss_base, ROTTOP_INTR_CLEAR,
ROT_DONE_CLEAR);
}
sts = (status & ROT_ERROR_BIT) ? -ENODEV : 0;
return sts;
}
/*
* sde_hw_rotator_wait_done_regdma - wait for regdma completion
* @ctx: Pointer to rotator context
* @queue_id: Priority queue identifier
* @flags: Option flag
*/
static u32 sde_hw_rotator_wait_done_regdma(
struct sde_hw_rotator_context *ctx,
enum sde_rot_queue_prio queue_id, u32 flag)
{
struct sde_hw_rotator *rot = ctx->rot;
int rc = 0;
u32 status;
u32 last_isr;
u32 last_ts;
u32 int_id;
u32 sts = 0;
u32 d_count;
unsigned long flags;
if (rot->irq_num >= 0) {
SDEROT_DBG("Wait for REGDMA completion, ctx:%p, ts:%X\n",
ctx, ctx->timestamp);
rc = wait_for_completion_timeout(&ctx->regdma_comp,
KOFF_TIMEOUT);
spin_lock_irqsave(&rot->rotisr_lock, flags);
last_isr = ctx->last_regdma_isr_status;
last_ts = ctx->last_regdma_timestamp;
status = last_isr & REGDMA_INT_MASK;
int_id = last_ts & 1;
SDEROT_DBG("INT status:0x%X, INT id:%d, timestamp:0x%X\n",
status, int_id, last_ts);
if (rc == 0 || (status & REGDMA_INT_ERR_MASK)) {
SDEROT_ERR(
"Timeout wait for regdma interrupt status, ts:%X\n",
ctx->timestamp);
if (status & REGDMA_WATCHDOG_INT)
SDEROT_ERR("REGDMA watchdog interrupt\n");
else if (status & REGDMA_INVALID_DESCRIPTOR)
SDEROT_ERR("REGDMA invalid descriptor\n");
else if (status & REGDMA_INCOMPLETE_CMD)
SDEROT_ERR("REGDMA incomplete command\n");
else if (status & REGDMA_INVALID_CMD)
SDEROT_ERR("REGDMA invalid command\n");
status = ROT_ERROR_BIT;
} else if (queue_id == ROT_QUEUE_HIGH_PRIORITY) {
/* Got to match exactly with interrupt ID */
int_id = REGDMA_QUEUE0_INT0 << int_id;
SDE_ROTREG_WRITE(rot->mdss_base,
REGDMA_CSR_REGDMA_INT_CLEAR,
int_id);
status = 0;
} else if (queue_id == ROT_QUEUE_LOW_PRIORITY) {
/* Matching interrupt ID */
int_id = REGDMA_QUEUE1_INT0 << int_id;
SDE_ROTREG_WRITE(rot->mdss_base,
REGDMA_CSR_REGDMA_INT_CLEAR,
int_id);
status = 0;
}
/* regardless success or timeout, update done count */
d_count = atomic_inc_return(&rot->regdma_done_count);
/* disable IRQ if no more regdma submission in queue */
if (d_count == atomic_read(&rot->regdma_submit_count)) {
SDEROT_DBG(
"Disable IRQ!! regdma donecnt==submitcnt -> %d\n",
d_count);
disable_irq_nosync(rot->irq_num);
}
spin_unlock_irqrestore(&rot->rotisr_lock, flags);
} else {
int cnt = 200;
do {
udelay(500);
status = SDE_ROTREG_READ(rot->mdss_base, ROTTOP_STATUS);
cnt--;
} while ((cnt > 0) && (status & ROT_BUSY_BIT)
&& ((status & ROT_ERROR_BIT) == 0));
if (status & ROT_ERROR_BIT)
SDEROT_ERR("Rotator error\n");
else if (status & ROT_BUSY_BIT)
SDEROT_ERR("Rotator busy\n");
SDE_ROTREG_WRITE(rot->mdss_base, REGDMA_CSR_REGDMA_INT_CLEAR,
0xFFFF);
}
sts = (status & ROT_ERROR_BIT) ? -ENODEV : 0;
return sts;
}
/*
* setup_rotator_ops - setup callback functions for the low-level HAL
* @ops: Pointer to low-level ops callback
* @mode: Operation mode (non-regdma or regdma)
*/
static void setup_rotator_ops(struct sde_hw_rotator_ops *ops,
enum sde_rotator_regdma_mode mode)
{
ops->setup_rotator_fetchengine = sde_hw_rotator_setup_fetchengine;
ops->setup_rotator_wbengine = sde_hw_rotator_setup_wbengine;
if (mode == ROT_REGDMA_ON) {
ops->start_rotator = sde_hw_rotator_start_regdma;
ops->wait_rotator_done = sde_hw_rotator_wait_done_regdma;
} else {
ops->start_rotator = sde_hw_rotator_start_no_regdma;
ops->wait_rotator_done = sde_hw_rotator_wait_done_no_regdma;
}
}
/*
* sde_hw_rotator_swts_create - create software timestamp buffer
* @rot: Pointer to rotator hw
*
* This buffer is used by regdma to keep track of last completed command.
*/
static int sde_hw_rotator_swts_create(struct sde_hw_rotator *rot)
{
int rc = 0;
struct ion_handle *handle;
struct sde_mdp_img_data *data;
u32 bufsize = sizeof(int) * SDE_HW_ROT_REGDMA_TOTAL_CTX * 2;
rot->iclient = msm_ion_client_create(rot->pdev->name);
if (IS_ERR_OR_NULL(rot->iclient)) {
SDEROT_ERR("msm_ion_client_create() return error (%p)\n",
rot->iclient);
return -EINVAL;
}
handle = ion_alloc(rot->iclient, bufsize, SZ_4K,
ION_HEAP(ION_SYSTEM_HEAP_ID), 0);
if (IS_ERR_OR_NULL(handle)) {
SDEROT_ERR("ion memory allocation failed\n");
return -ENOMEM;
}
data = &rot->swts_buf;
data->len = bufsize;
data->srcp_dma_buf = ion_share_dma_buf(rot->iclient, handle);
if (IS_ERR(data->srcp_dma_buf)) {
SDEROT_ERR("ion_dma_buf setup failed\n");
rc = -ENOMEM;
goto imap_err;
}
sde_smmu_ctrl(1);
data->srcp_attachment = sde_smmu_dma_buf_attach(data->srcp_dma_buf,
&rot->pdev->dev, SDE_IOMMU_DOMAIN_ROT_UNSECURE);
if (IS_ERR_OR_NULL(data->srcp_attachment)) {
SDEROT_ERR("sde_smmu_dma_buf_attach error\n");
rc = -ENOMEM;
goto err_put;
}
data->srcp_table = dma_buf_map_attachment(data->srcp_attachment,
DMA_BIDIRECTIONAL);
if (IS_ERR_OR_NULL(data->srcp_table)) {
SDEROT_ERR("dma_buf_map_attachment error\n");
rc = -ENOMEM;
goto err_detach;
}
rc = sde_smmu_map_dma_buf(data->srcp_dma_buf, data->srcp_table,
SDE_IOMMU_DOMAIN_ROT_UNSECURE, &data->addr,
&data->len, DMA_BIDIRECTIONAL);
if (IS_ERR_VALUE(rc)) {
SDEROT_ERR("smmu_map_dma_buf failed: (%d)\n", rc);
goto err_unmap;
}
dma_buf_begin_cpu_access(data->srcp_dma_buf, 0, data->len,
DMA_FROM_DEVICE);
rot->swts_buffer = dma_buf_kmap(data->srcp_dma_buf, 0);
if (IS_ERR_OR_NULL(rot->swts_buffer)) {
SDEROT_ERR("ion kernel memory mapping failed\n");
rc = IS_ERR(rot->swts_buffer);
goto kmap_err;
}
data->mapped = true;
SDEROT_DBG("swts buffer mapped: %pad/%lx va:%p\n", &data->addr,
data->len, rot->swts_buffer);
ion_free(rot->iclient, handle);
sde_smmu_ctrl(0);
return rc;
kmap_err:
sde_smmu_unmap_dma_buf(data->srcp_table, SDE_IOMMU_DOMAIN_ROT_UNSECURE,
DMA_FROM_DEVICE, data->srcp_dma_buf);
err_unmap:
dma_buf_unmap_attachment(data->srcp_attachment, data->srcp_table,
DMA_FROM_DEVICE);
err_detach:
dma_buf_detach(data->srcp_dma_buf, data->srcp_attachment);
err_put:
dma_buf_put(data->srcp_dma_buf);
data->srcp_dma_buf = NULL;
imap_err:
ion_free(rot->iclient, handle);
return rc;
}
/*
* sde_hw_rotator_swtc_destroy - destroy software timestamp buffer
* @rot: Pointer to rotator hw
*/
static void sde_hw_rotator_swtc_destroy(struct sde_hw_rotator *rot)
{
struct sde_mdp_img_data *data;
data = &rot->swts_buf;
dma_buf_end_cpu_access(data->srcp_dma_buf, 0, data->len,
DMA_FROM_DEVICE);
dma_buf_kunmap(data->srcp_dma_buf, 0, rot->swts_buffer);
sde_smmu_unmap_dma_buf(data->srcp_table, SDE_IOMMU_DOMAIN_ROT_UNSECURE,
DMA_FROM_DEVICE, data->srcp_dma_buf);
dma_buf_unmap_attachment(data->srcp_attachment, data->srcp_table,
DMA_FROM_DEVICE);
dma_buf_detach(data->srcp_dma_buf, data->srcp_attachment);
dma_buf_put(data->srcp_dma_buf);
data->srcp_dma_buf = NULL;
}
/*
* sde_hw_rotator_destroy - Destroy hw rotator and free allocated resources
* @mgr: Pointer to rotator manager
*/
static void sde_hw_rotator_destroy(struct sde_rot_mgr *mgr)
{
struct sde_rot_data_type *mdata = sde_rot_get_mdata();
struct sde_hw_rotator *rot;
if (!mgr || !mgr->pdev || !mgr->hw_data) {
SDEROT_ERR("null parameters\n");
return;
}
rot = mgr->hw_data;
if (rot->irq_num >= 0)
devm_free_irq(&mgr->pdev->dev, rot->irq_num, mdata);
if (rot->mode == ROT_REGDMA_ON)
sde_hw_rotator_swtc_destroy(rot);
devm_kfree(&mgr->pdev->dev, mgr->hw_data);
mgr->hw_data = NULL;
}
/*
* sde_hw_rotator_alloc_ext - allocate rotator resource from rotator hw
* @mgr: Pointer to rotator manager
* @pipe_id: pipe identifier (not used)
* @wb_id: writeback identifier/priority queue identifier
*
* This function allocates a new hw rotator resource for the given priority.
*/
static struct sde_rot_hw_resource *sde_hw_rotator_alloc_ext(
struct sde_rot_mgr *mgr, u32 pipe_id, u32 wb_id)
{
struct sde_hw_rotator_resource_info *resinfo;
if (!mgr || !mgr->hw_data) {
SDEROT_ERR("null parameters\n");
return NULL;
}
/*
* Allocate rotator resource info. Each allocation is per
* HW priority queue
*/
resinfo = devm_kzalloc(&mgr->pdev->dev, sizeof(*resinfo), GFP_KERNEL);
if (!resinfo) {
SDEROT_ERR("Failed allocation HW rotator resource info\n");
return NULL;
}
resinfo->rot = mgr->hw_data;
resinfo->hw.wb_id = wb_id;
atomic_set(&resinfo->hw.num_active, 0);
init_waitqueue_head(&resinfo->hw.wait_queue);
/* For non-regdma, only support one active session */
if (resinfo->rot->mode == ROT_REGDMA_OFF)
resinfo->hw.max_active = 1;
else {
resinfo->hw.max_active = SDE_HW_ROT_REGDMA_TOTAL_CTX - 1;
if (resinfo->rot->iclient == NULL)
sde_hw_rotator_swts_create(resinfo->rot);
}
SDEROT_DBG("New rotator resource:%p, priority:%d\n",
resinfo, wb_id);
return &resinfo->hw;
}
/*
* sde_hw_rotator_free_ext - free the given rotator resource
* @mgr: Pointer to rotator manager
* @hw: Pointer to rotator resource
*/
static void sde_hw_rotator_free_ext(struct sde_rot_mgr *mgr,
struct sde_rot_hw_resource *hw)
{
struct sde_hw_rotator_resource_info *resinfo;
if (!mgr || !mgr->hw_data)
return;
resinfo = container_of(hw, struct sde_hw_rotator_resource_info, hw);
SDEROT_DBG(
"Free rotator resource:%p, priority:%d, active:%d, pending:%d\n",
resinfo, hw->wb_id, atomic_read(&hw->num_active),
hw->pending_count);
devm_kfree(&mgr->pdev->dev, resinfo);
}
/*
* sde_hw_rotator_alloc_rotctx - allocate rotator context
* @rot: Pointer to rotator hw
* @hw: Pointer to rotator resource
* @session_id: Session identifier of this context
*
* This function allocates a new rotator context for the given session id.
*/
static struct sde_hw_rotator_context *sde_hw_rotator_alloc_rotctx(
struct sde_hw_rotator *rot,
struct sde_rot_hw_resource *hw,
u32 session_id)
{
struct sde_hw_rotator_context *ctx;
/* Allocate rotator context */
ctx = devm_kzalloc(&rot->pdev->dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx) {
SDEROT_ERR("Failed allocation HW rotator context\n");
return NULL;
}
ctx->rot = rot;
ctx->q_id = hw->wb_id;
ctx->session_id = session_id;
ctx->hwres = hw;
ctx->timestamp = atomic_add_return(1, &rot->timestamp[ctx->q_id]);
ctx->timestamp &= SDE_REGDMA_SWTS_MASK;
ctx->is_secure = false;
ctx->regdma_base = rot->cmd_wr_ptr[ctx->q_id]
[sde_hw_rotator_get_regdma_ctxidx(ctx)];
ctx->regdma_wrptr = ctx->regdma_base;
ctx->ts_addr = (dma_addr_t)((u32 *)rot->swts_buf.addr +
ctx->q_id * SDE_HW_ROT_REGDMA_TOTAL_CTX +
sde_hw_rotator_get_regdma_ctxidx(ctx));
init_completion(&ctx->rot_comp);
init_completion(&ctx->regdma_comp);
/* Store rotator context for lookup purpose */
sde_hw_rotator_put_ctx(ctx);
SDEROT_DBG(
"New rot CTX:%p, ctxidx:%d, session-id:%d, prio:%d, timestamp:%X, active:%d\n",
ctx, sde_hw_rotator_get_regdma_ctxidx(ctx), ctx->session_id,
ctx->q_id, ctx->timestamp,
atomic_read(&ctx->hwres->num_active));
return ctx;
}
/*
* sde_hw_rotator_free_rotctx - free the given rotator context
* @rot: Pointer to rotator hw
* @ctx: Pointer to rotator context
*/
static void sde_hw_rotator_free_rotctx(struct sde_hw_rotator *rot,
struct sde_hw_rotator_context *ctx)
{
if (!rot || !ctx)
return;
SDEROT_DBG(
"Free rot CTX:%p, ctxidx:%d, session-id:%d, prio:%d, timestamp:%X, active:%d\n",
ctx, sde_hw_rotator_get_regdma_ctxidx(ctx), ctx->session_id,
ctx->q_id, ctx->timestamp,
atomic_read(&ctx->hwres->num_active));
rot->rotCtx[ctx->q_id][sde_hw_rotator_get_regdma_ctxidx(ctx)] = NULL;
devm_kfree(&rot->pdev->dev, ctx);
}
/*
* sde_hw_rotator_config - configure hw for the given rotation entry
* @hw: Pointer to rotator resource
* @entry: Pointer to rotation entry
*
* This function setup the fetch/writeback/rotator blocks, as well as VBIF
* based on the given rotation entry.
*/
static int sde_hw_rotator_config(struct sde_rot_hw_resource *hw,
struct sde_rot_entry *entry)
{
struct sde_rot_data_type *mdata = sde_rot_get_mdata();
struct sde_hw_rotator *rot;
struct sde_hw_rotator_resource_info *resinfo;
struct sde_hw_rotator_context *ctx;
struct sde_hw_rot_sspp_cfg sspp_cfg;
struct sde_hw_rot_wb_cfg wb_cfg;
u32 danger_lut = 0; /* applicable for realtime client only */
u32 safe_lut = 0; /* applicable for realtime client only */
u32 flags = 0;
struct sde_rotation_item *item;
if (!hw || !entry) {
SDEROT_ERR("null hw resource/entry\n");
return -EINVAL;
}
resinfo = container_of(hw, struct sde_hw_rotator_resource_info, hw);
rot = resinfo->rot;
item = &entry->item;
ctx = sde_hw_rotator_alloc_rotctx(rot, hw, item->session_id);
if (!ctx) {
SDEROT_ERR("Failed allocating rotator context!!\n");
return -EINVAL;
}
flags = (item->flags & SDE_ROTATION_FLIP_LR) ?
SDE_ROT_FLAG_FLIP_LR : 0;
flags |= (item->flags & SDE_ROTATION_FLIP_UD) ?
SDE_ROT_FLAG_FLIP_UD : 0;
flags |= (item->flags & SDE_ROTATION_90) ?
SDE_ROT_FLAG_ROT_90 : 0;
flags |= (item->flags & SDE_ROTATION_DEINTERLACE) ?
SDE_ROT_FLAG_DEINTERLACE : 0;
flags |= (item->flags & SDE_ROTATION_SECURE) ?
SDE_ROT_FLAG_SECURE_OVERLAY_SESSION : 0;
sspp_cfg.img_width = item->input.width;
sspp_cfg.img_height = item->input.height;
sspp_cfg.fmt = sde_get_format_params(item->input.format);
if (!sspp_cfg.fmt) {
SDEROT_ERR("null format\n");
return -EINVAL;
}
sspp_cfg.src_rect = &item->src_rect;
sspp_cfg.data = &entry->src_buf;
sde_mdp_get_plane_sizes(sspp_cfg.fmt, item->input.width,
item->input.height, &sspp_cfg.src_plane,
0, /* No bwc_mode */
(flags & SDE_ROT_FLAG_SOURCE_ROTATED_90) ?
true : false);
rot->ops.setup_rotator_fetchengine(ctx, ctx->q_id,
&sspp_cfg, danger_lut, safe_lut, flags);
wb_cfg.img_width = item->output.width;
wb_cfg.img_height = item->output.height;
wb_cfg.fmt = sde_get_format_params(item->output.format);
wb_cfg.dst_rect = &item->dst_rect;
wb_cfg.data = &entry->dst_buf;
sde_mdp_get_plane_sizes(wb_cfg.fmt, item->output.width,
item->output.height, &wb_cfg.dst_plane,
0, /* No bwc_mode */
(flags & SDE_ROT_FLAG_ROT_90) ? true : false);
wb_cfg.v_downscale_factor = entry->dnsc_factor_h;
wb_cfg.h_downscale_factor = entry->dnsc_factor_w;
rot->ops.setup_rotator_wbengine(ctx, ctx->q_id, &wb_cfg, flags);
/* setup VA mapping for debugfs */
if (rot->dbgmem) {
sde_hw_rotator_map_vaddr(&ctx->src_dbgbuf,
&item->input,
&entry->src_buf);
sde_hw_rotator_map_vaddr(&ctx->dst_dbgbuf,
&item->output,
&entry->dst_buf);
}
if (mdata->default_ot_rd_limit) {
struct sde_mdp_set_ot_params ot_params;
memset(&ot_params, 0, sizeof(struct sde_mdp_set_ot_params));
ot_params.xin_id = XIN_SSPP;
ot_params.num = 0; /* not used */
ot_params.width = entry->perf->config.input.width;
ot_params.height = entry->perf->config.input.height;
ot_params.fps = entry->perf->config.frame_rate;
ot_params.reg_off_vbif_lim_conf = MMSS_VBIF_RD_LIM_CONF;
ot_params.reg_off_mdp_clk_ctrl =
MMSS_VBIF_NRT_VBIF_CLK_FORCE_CTRL0;
ot_params.bit_off_mdp_clk_ctrl =
MMSS_VBIF_NRT_VBIF_CLK_FORCE_CTRL0_XIN0;
ot_params.fmt = entry->perf->config.input.format;
sde_mdp_set_ot_limit(&ot_params);
}
if (mdata->default_ot_wr_limit) {
struct sde_mdp_set_ot_params ot_params;
memset(&ot_params, 0, sizeof(struct sde_mdp_set_ot_params));
ot_params.xin_id = XIN_WRITEBACK;
ot_params.num = 0; /* not used */
ot_params.width = entry->perf->config.input.width;
ot_params.height = entry->perf->config.input.height;
ot_params.fps = entry->perf->config.frame_rate;
ot_params.reg_off_vbif_lim_conf = MMSS_VBIF_WR_LIM_CONF;
ot_params.reg_off_mdp_clk_ctrl =
MMSS_VBIF_NRT_VBIF_CLK_FORCE_CTRL0;
ot_params.bit_off_mdp_clk_ctrl =
MMSS_VBIF_NRT_VBIF_CLK_FORCE_CTRL0_XIN1;
ot_params.fmt = entry->perf->config.input.format;
sde_mdp_set_ot_limit(&ot_params);
}
if (test_bit(SDE_QOS_PER_PIPE_LUT, mdata->sde_qos_map)) {
u32 qos_lut = 0; /* low priority for nrt read client */
trace_rot_perf_set_qos_luts(XIN_SSPP, sspp_cfg.fmt->format,
qos_lut, sde_mdp_is_linear_format(sspp_cfg.fmt));
SDE_ROTREG_WRITE(rot->mdss_base, ROT_SSPP_CREQ_LUT, qos_lut);
}
if (mdata->npriority_lvl > 0) {
u32 mask, reg_val, i, vbif_qos;
for (i = 0; i < mdata->npriority_lvl; i++) {
reg_val = SDE_VBIF_READ(mdata,
MMSS_VBIF_NRT_VBIF_QOS_REMAP_00 + i*4);
mask = 0x3 << (XIN_SSPP * 2);
reg_val &= ~(mask);
vbif_qos = mdata->vbif_nrt_qos[i];
reg_val |= vbif_qos << (XIN_SSPP * 2);
/* ensure write is issued after the read operation */
mb();
SDE_VBIF_WRITE(mdata,
MMSS_VBIF_NRT_VBIF_QOS_REMAP_00 + i*4,
reg_val);
}
}
/* Enable write gather for writeback to remove write gaps, which
* may hang AXI/BIMC/SDE.
*/
SDE_VBIF_WRITE(mdata, MMSS_VBIF_NRT_VBIF_WRITE_GATHTER_EN,
BIT(XIN_WRITEBACK));
return 0;
}
/*
* sde_hw_rotator_kickoff - kickoff processing on the given entry
* @hw: Pointer to rotator resource
* @entry: Pointer to rotation entry
*/
static int sde_hw_rotator_kickoff(struct sde_rot_hw_resource *hw,
struct sde_rot_entry *entry)
{
struct sde_hw_rotator *rot;
struct sde_hw_rotator_resource_info *resinfo;
struct sde_hw_rotator_context *ctx;
int ret = 0;
if (!hw || !entry) {
SDEROT_ERR("null hw resource/entry\n");
return -EINVAL;
}
resinfo = container_of(hw, struct sde_hw_rotator_resource_info, hw);
rot = resinfo->rot;
/* Lookup rotator context from session-id */
ctx = sde_hw_rotator_get_ctx(rot, entry->item.session_id, hw->wb_id);
if (!ctx) {
SDEROT_ERR("Cannot locate rotator ctx from sesison id:%d\n",
entry->item.session_id);
}
WARN_ON(ctx == NULL);
ret = sde_smmu_ctrl(1);
if (IS_ERR_VALUE(ret)) {
SDEROT_ERR("IOMMU attach failed\n");
return ret;
}
rot->ops.start_rotator(ctx, ctx->q_id);
return 0;
}
/*
* sde_hw_rotator_wait4done - wait for completion notification
* @hw: Pointer to rotator resource
* @entry: Pointer to rotation entry
*
* This function blocks until the given entry is complete, error
* is detected, or timeout.
*/
static int sde_hw_rotator_wait4done(struct sde_rot_hw_resource *hw,
struct sde_rot_entry *entry)
{
struct sde_hw_rotator *rot;
struct sde_hw_rotator_resource_info *resinfo;
struct sde_hw_rotator_context *ctx;
int ret;
if (!hw || !entry) {
SDEROT_ERR("null hw resource/entry\n");
return -EINVAL;
}
resinfo = container_of(hw, struct sde_hw_rotator_resource_info, hw);
rot = resinfo->rot;
/* Lookup rotator context from session-id */
ctx = sde_hw_rotator_get_ctx(rot, entry->item.session_id, hw->wb_id);
if (!ctx) {
SDEROT_ERR("Cannot locate rotator ctx from sesison id:%d\n",
entry->item.session_id);
}
WARN_ON(ctx == NULL);
ret = rot->ops.wait_rotator_done(ctx, ctx->q_id, 0);
sde_smmu_ctrl(0);
if (rot->dbgmem) {
sde_hw_rotator_unmap_vaddr(&ctx->src_dbgbuf);
sde_hw_rotator_unmap_vaddr(&ctx->dst_dbgbuf);
}
/* Current rotator context job is finished, time to free up*/
sde_hw_rotator_free_rotctx(rot, ctx);
return ret;
}
/*
* sde_rotator_hw_rev_init - setup feature and/or capability bitmask
* @rot: Pointer to hw rotator
*
* This function initializes feature and/or capability bitmask based on
* h/w version read from the device.
*/
static int sde_rotator_hw_rev_init(struct sde_hw_rotator *rot)
{
struct sde_rot_data_type *mdata = sde_rot_get_mdata();
u32 hw_version;
if (!mdata) {
SDEROT_ERR("null rotator data\n");
return -EINVAL;
}
hw_version = SDE_ROTREG_READ(rot->mdss_base, ROTTOP_HW_VERSION);
SDEROT_DBG("hw version %8.8x\n", hw_version);
clear_bit(SDE_QOS_PER_PIPE_IB, mdata->sde_qos_map);
set_bit(SDE_QOS_OVERHEAD_FACTOR, mdata->sde_qos_map);
clear_bit(SDE_QOS_CDP, mdata->sde_qos_map);
set_bit(SDE_QOS_OTLIM, mdata->sde_qos_map);
set_bit(SDE_QOS_PER_PIPE_LUT, mdata->sde_qos_map);
clear_bit(SDE_QOS_SIMPLIFIED_PREFILL, mdata->sde_qos_map);
set_bit(SDE_CAPS_R3_WB, mdata->sde_caps_map);
return 0;
}
/*
* sde_hw_rotator_rotirq_handler - non-regdma interrupt handler
* @irq: Interrupt number
* @ptr: Pointer to private handle provided during registration
*
* This function services rotator interrupt and wakes up waiting client
* with pending rotation requests already submitted to h/w.
*/
static irqreturn_t sde_hw_rotator_rotirq_handler(int irq, void *ptr)
{
struct sde_hw_rotator *rot = ptr;
struct sde_hw_rotator_context *ctx;
irqreturn_t ret = IRQ_NONE;
u32 isr;
isr = SDE_ROTREG_READ(rot->mdss_base, ROTTOP_INTR_STATUS);
SDEROT_DBG("intr_status = %8.8x\n", isr);
if (isr & ROT_DONE_MASK) {
if (rot->irq_num >= 0)
disable_irq_nosync(rot->irq_num);
SDEROT_DBG("Notify rotator complete\n");
/* Normal rotator only 1 session, no need to lookup */
ctx = rot->rotCtx[0][0];
WARN_ON(ctx == NULL);
complete_all(&ctx->rot_comp);
spin_lock(&rot->rotisr_lock);
SDE_ROTREG_WRITE(rot->mdss_base, ROTTOP_INTR_CLEAR,
ROT_DONE_CLEAR);
spin_unlock(&rot->rotisr_lock);
ret = IRQ_HANDLED;
}
return ret;
}
/*
* sde_hw_rotator_regdmairq_handler - regdma interrupt handler
* @irq: Interrupt number
* @ptr: Pointer to private handle provided during registration
*
* This function services rotator interrupt, decoding the source of
* events (high/low priority queue), and wakes up all waiting clients
* with pending rotation requests already submitted to h/w.
*/
static irqreturn_t sde_hw_rotator_regdmairq_handler(int irq, void *ptr)
{
struct sde_hw_rotator *rot = ptr;
struct sde_hw_rotator_context *ctx;
irqreturn_t ret = IRQ_NONE;
u32 isr;
u32 ts;
u32 q_id;
isr = SDE_ROTREG_READ(rot->mdss_base, REGDMA_CSR_REGDMA_INT_STATUS);
ts = SDE_ROTREG_READ(rot->mdss_base, REGDMA_TIMESTAMP_REG);
SDEROT_DBG("intr_status = %8.8x, sw_TS:%X\n", isr, ts);
/* Any REGDMA status, including error and watchdog timer, should
* trigger and wake up waiting thread
*/
if (isr & (REGDMA_INT_HIGH_MASK | REGDMA_INT_LOW_MASK)) {
spin_lock(&rot->rotisr_lock);
/*
* Obtain rotator context based on timestamp from regdma
* and low/high interrupt status
*/
if (isr & REGDMA_INT_HIGH_MASK) {
q_id = ROT_QUEUE_HIGH_PRIORITY;
ts = ts & SDE_REGDMA_SWTS_MASK;
} else if (isr & REGDMA_INT_LOW_MASK) {
q_id = ROT_QUEUE_LOW_PRIORITY;
ts = (ts >> SDE_REGDMA_SWTS_SHIFT) &
SDE_REGDMA_SWTS_MASK;
}
ctx = rot->rotCtx[q_id][ts & SDE_HW_ROT_REGDMA_SEG_MASK];
WARN_ON(ctx == NULL);
/*
* Wake up all waiting context from the current and previous
* SW Timestamp.
*/
do {
ctx->last_regdma_isr_status = isr;
ctx->last_regdma_timestamp = ts;
SDEROT_DBG(
"regdma complete: ctx:%p, ts:%X, dcount:%X\n",
ctx, ts, atomic_read(&rot->regdma_done_count));
complete_all(&ctx->regdma_comp);
ts = (ts - 1) & SDE_REGDMA_SWTS_MASK;
ctx = rot->rotCtx[q_id]
[ts & SDE_HW_ROT_REGDMA_SEG_MASK];
} while (ctx && (ctx->last_regdma_timestamp == 0));
/*
* Clear corresponding regdma interrupt because it is a level
* interrupt
*/
SDE_ROTREG_WRITE(rot->mdss_base, REGDMA_CSR_REGDMA_INT_CLEAR,
isr);
spin_unlock(&rot->rotisr_lock);
ret = IRQ_HANDLED;
} else if (isr & REGDMA_INT_ERR_MASK) {
/*
* For REGDMA Err, we save the isr info and wake up
* all waiting contexts
*/
int i, j;
SDEROT_ERR(
"regdma err isr:%X, wake up all waiting contexts\n",
isr);
spin_lock(&rot->rotisr_lock);
for (i = 0; i < ROT_QUEUE_MAX; i++) {
for (j = 0; j < SDE_HW_ROT_REGDMA_TOTAL_CTX; j++) {
ctx = rot->rotCtx[i][j];
if (ctx && ctx->last_regdma_isr_status == 0) {
ctx->last_regdma_isr_status = isr;
ctx->last_regdma_timestamp = ts;
complete_all(&ctx->regdma_comp);
SDEROT_DBG("Wakeup rotctx[%d][%d]:%p\n",
i, j, ctx);
}
}
}
SDE_ROTREG_WRITE(rot->mdss_base, REGDMA_CSR_REGDMA_INT_CLEAR,
isr);
spin_unlock(&rot->rotisr_lock);
ret = IRQ_HANDLED;
}
return ret;
}
/*
* sde_hw_rotator_validate_entry - validate rotation entry
* @mgr: Pointer to rotator manager
* @entry: Pointer to rotation entry
*
* This function validates the given rotation entry and provides possible
* fixup (future improvement) if available. This function returns 0 if
* the entry is valid, and returns error code otherwise.
*/
static int sde_hw_rotator_validate_entry(struct sde_rot_mgr *mgr,
struct sde_rot_entry *entry)
{
int ret = 0;
u16 src_w, src_h, dst_w, dst_h;
struct sde_rotation_item *item = &entry->item;
struct sde_mdp_format_params *fmt;
src_w = item->src_rect.w;
src_h = item->src_rect.h;
if (item->flags & SDE_ROTATION_90) {
dst_w = item->dst_rect.h;
dst_h = item->dst_rect.w;
} else {
dst_w = item->dst_rect.w;
dst_h = item->dst_rect.h;
}
entry->dnsc_factor_w = 0;
entry->dnsc_factor_h = 0;
if ((src_w != dst_w) || (src_h != dst_h)) {
if ((src_w % dst_w) || (src_h % dst_h)) {
SDEROT_DBG("non integral scale not support\n");
ret = -EINVAL;
goto dnsc_err;
}
entry->dnsc_factor_w = src_w / dst_w;
if ((entry->dnsc_factor_w & (entry->dnsc_factor_w - 1)) ||
(entry->dnsc_factor_w > 64)) {
SDEROT_DBG("non power-of-2 w_scale not support\n");
ret = -EINVAL;
goto dnsc_err;
}
entry->dnsc_factor_h = src_h / dst_h;
if ((entry->dnsc_factor_h & (entry->dnsc_factor_h - 1)) ||
(entry->dnsc_factor_h > 64)) {
SDEROT_DBG("non power-of-2 h_scale not support\n");
ret = -EINVAL;
goto dnsc_err;
}
}
fmt = sde_get_format_params(item->output.format);
/* Tiled format downscale support not applied to AYUV tiled */
if (sde_mdp_is_tilea5x_format(fmt) && (entry->dnsc_factor_h > 4)) {
SDEROT_DBG("max downscale for tiled format is 4\n");
ret = -EINVAL;
goto dnsc_err;
}
if (sde_mdp_is_ubwc_format(fmt) && (entry->dnsc_factor_h > 2)) {
SDEROT_DBG("downscale with ubwc cannot be more than 2\n");
ret = -EINVAL;
}
dnsc_err:
/* Downscaler does not support asymmetrical dnsc */
if (entry->dnsc_factor_w != entry->dnsc_factor_h) {
SDEROT_DBG("asymmetric downscale not support\n");
ret = -EINVAL;
}
if (ret) {
entry->dnsc_factor_w = 0;
entry->dnsc_factor_h = 0;
}
return ret;
}
/*
* sde_hw_rotator_show_caps - output capability info to sysfs 'caps' file
* @mgr: Pointer to rotator manager
* @attr: Pointer to device attribute interface
* @buf: Pointer to output buffer
* @len: Length of output buffer
*/
static ssize_t sde_hw_rotator_show_caps(struct sde_rot_mgr *mgr,
struct device_attribute *attr, char *buf, ssize_t len)
{
struct sde_hw_rotator *hw_data;
int cnt = 0;
if (!mgr || !buf)
return 0;
hw_data = mgr->hw_data;
#define SPRINT(fmt, ...) \
(cnt += scnprintf(buf + cnt, len - cnt, fmt, ##__VA_ARGS__))
/* insert capabilities here */
#undef SPRINT
return cnt;
}
/*
* sde_hw_rotator_show_state - output state info to sysfs 'state' file
* @mgr: Pointer to rotator manager
* @attr: Pointer to device attribute interface
* @buf: Pointer to output buffer
* @len: Length of output buffer
*/
static ssize_t sde_hw_rotator_show_state(struct sde_rot_mgr *mgr,
struct device_attribute *attr, char *buf, ssize_t len)
{
struct sde_hw_rotator *rot;
struct sde_hw_rotator_context *ctx;
int cnt = 0;
int num_active = 0;
int i, j;
if (!mgr || !buf) {
SDEROT_ERR("null parameters\n");
return 0;
}
rot = mgr->hw_data;
#define SPRINT(fmt, ...) \
(cnt += scnprintf(buf + cnt, len - cnt, fmt, ##__VA_ARGS__))
if (rot) {
SPRINT("rot_mode=%d\n", rot->mode);
SPRINT("irq_num=%d\n", rot->irq_num);
if (rot->mode == ROT_REGDMA_OFF) {
SPRINT("max_active=1\n");
SPRINT("num_active=%d\n", rot->rotCtx[0][0] ? 1 : 0);
} else {
for (i = 0; i < ROT_QUEUE_MAX; i++) {
for (j = 0; j < SDE_HW_ROT_REGDMA_TOTAL_CTX;
j++) {
ctx = rot->rotCtx[i][j];
if (ctx) {
SPRINT(
"rotCtx[%d][%d]:%p\n",
i, j, ctx);
++num_active;
}
}
}
SPRINT("max_active=%d\n", SDE_HW_ROT_REGDMA_TOTAL_CTX);
SPRINT("num_active=%d\n", num_active);
}
}
#undef SPRINT
return cnt;
}
/*
* sde_hw_rotator_parse_dt - parse r3 specific device tree settings
* @hw_data: Pointer to rotator hw
* @dev: Pointer to platform device
*/
static int sde_hw_rotator_parse_dt(struct sde_hw_rotator *hw_data,
struct platform_device *dev)
{
int ret = 0;
u32 data;
if (!hw_data || !dev)
return -EINVAL;
ret = of_property_read_u32(dev->dev.of_node, "qcom,mdss-rot-mode",
&data);
if (ret) {
SDEROT_DBG("default to regdma off\n");
ret = 0;
hw_data->mode = ROT_REGDMA_OFF;
} else if (data < ROT_REGDMA_MAX) {
SDEROT_DBG("set to regdma mode %d\n", data);
hw_data->mode = data;
} else {
SDEROT_ERR("regdma mode out of range. default to regdma off\n");
hw_data->mode = ROT_REGDMA_OFF;
}
ret = of_property_read_u32(dev->dev.of_node,
"qcom,mdss-highest-bank-bit", &data);
if (ret) {
SDEROT_DBG("default to A5X bank\n");
ret = 0;
hw_data->highest_bank = 2;
} else {
SDEROT_DBG("set highest bank bit to %d\n", data);
hw_data->highest_bank = data;
}
return ret;
}
/*
* sde_rotator_r3_init - initialize the r3 module
* @mgr: Pointer to rotator manager
*
* This function setup r3 callback functions, parses r3 specific
* device tree settings, installs r3 specific interrupt handler,
* as well as initializes r3 internal data structure.
*/
int sde_rotator_r3_init(struct sde_rot_mgr *mgr)
{
struct sde_hw_rotator *rot;
struct sde_rot_data_type *mdata = sde_rot_get_mdata();
int i;
int ret;
rot = devm_kzalloc(&mgr->pdev->dev, sizeof(*rot), GFP_KERNEL);
if (!rot)
return -ENOMEM;
mgr->hw_data = rot;
mgr->queue_count = ROT_QUEUE_MAX;
rot->mdss_base = mdata->sde_io.base;
rot->pdev = mgr->pdev;
/* Assign ops */
mgr->ops_hw_destroy = sde_hw_rotator_destroy;
mgr->ops_hw_alloc = sde_hw_rotator_alloc_ext;
mgr->ops_hw_free = sde_hw_rotator_free_ext;
mgr->ops_config_hw = sde_hw_rotator_config;
mgr->ops_kickoff_entry = sde_hw_rotator_kickoff;
mgr->ops_wait_for_entry = sde_hw_rotator_wait4done;
mgr->ops_hw_validate_entry = sde_hw_rotator_validate_entry;
mgr->ops_hw_show_caps = sde_hw_rotator_show_caps;
mgr->ops_hw_show_state = sde_hw_rotator_show_state;
mgr->ops_hw_create_debugfs = sde_rotator_r3_create_debugfs;
ret = sde_hw_rotator_parse_dt(mgr->hw_data, mgr->pdev);
if (ret)
goto error_parse_dt;
rot->irq_num = platform_get_irq(mgr->pdev, 0);
if (rot->irq_num < 0) {
SDEROT_ERR("fail to get rotator irq\n");
} else {
if (rot->mode == ROT_REGDMA_OFF)
ret = devm_request_threaded_irq(&mgr->pdev->dev,
rot->irq_num,
sde_hw_rotator_rotirq_handler,
NULL, 0, "sde_rotator_r3", rot);
else
ret = devm_request_threaded_irq(&mgr->pdev->dev,
rot->irq_num,
sde_hw_rotator_regdmairq_handler,
NULL, 0, "sde_rotator_r3", rot);
if (ret) {
SDEROT_ERR("fail to request irq r:%d\n", ret);
rot->irq_num = -1;
} else {
disable_irq(rot->irq_num);
}
}
setup_rotator_ops(&rot->ops, rot->mode);
spin_lock_init(&rot->rotctx_lock);
spin_lock_init(&rot->rotisr_lock);
/* REGDMA initialization */
if (rot->mode == ROT_REGDMA_OFF) {
for (i = 0; i < SDE_HW_ROT_REGDMA_TOTAL_CTX; i++)
rot->cmd_wr_ptr[0][i] = &rot->cmd_queue[
SDE_HW_ROT_REGDMA_SEG_SIZE * i];
} else {
for (i = 0; i < SDE_HW_ROT_REGDMA_TOTAL_CTX; i++)
rot->cmd_wr_ptr[ROT_QUEUE_HIGH_PRIORITY][i] =
(u32 *)(rot->mdss_base +
REGDMA_RAM_REGDMA_CMD_RAM +
SDE_HW_ROT_REGDMA_SEG_SIZE * 4 * i);
for (i = 0; i < SDE_HW_ROT_REGDMA_TOTAL_CTX; i++)
rot->cmd_wr_ptr[ROT_QUEUE_LOW_PRIORITY][i] =
(u32 *)(rot->mdss_base +
REGDMA_RAM_REGDMA_CMD_RAM +
SDE_HW_ROT_REGDMA_SEG_SIZE * 4 *
(i + SDE_HW_ROT_REGDMA_TOTAL_CTX));
}
atomic_set(&rot->timestamp[0], 0);
atomic_set(&rot->timestamp[1], 0);
atomic_set(&rot->regdma_submit_count, 0);
atomic_set(&rot->regdma_done_count, 0);
ret = sde_rotator_hw_rev_init(rot);
if (ret)
goto error_hw_rev_init;
return 0;
error_hw_rev_init:
if (rot->irq_num >= 0)
devm_free_irq(&mgr->pdev->dev, rot->irq_num, mdata);
devm_kfree(&mgr->pdev->dev, mgr->hw_data);
error_parse_dt:
return ret;
}