From: "Murugasen Krishnan, Kuhanh" <kuhanh.murugasen.krish...@intel.com>
Hantro VC8000D allows 4K decoding with a minimal silicon single-core solution
that
supports HEVC and H.264 video formats, key features:
* HEVC Main10 and Main Profiles up to Level 5.2
* HEVC Main Still Profile
* H.264 Main and High Profiles up to Level 5.2
* HEVC, H.264 and JPEG decoding up to 4K@60fps
* 8 channels 1080p@30fps decoding
Signed-off-by: Murugasen Krishnan, Kuhanh <kuhanh.murugasen.krish...@intel.com>
---
drivers/gpu/drm/hantro/hantro_dec.c | 1441 ++++++++++++++++++++++++++++++
drivers/gpu/drm/hantro/hantro_dec.h | 59 ++
drivers/gpu/drm/hantro/hantro_dwl_defs.h | 101 +++
3 files changed, 1601 insertions(+)
create mode 100644 drivers/gpu/drm/hantro/hantro_dec.c
create mode 100644 drivers/gpu/drm/hantro/hantro_dec.h
create mode 100644 drivers/gpu/drm/hantro/hantro_dwl_defs.h
diff --git a/drivers/gpu/drm/hantro/hantro_dec.c
b/drivers/gpu/drm/hantro/hantro_dec.c
new file mode 100644
index 0000000..ac501f3
--- /dev/null
+++ b/drivers/gpu/drm/hantro/hantro_dec.c
@@ -0,0 +1,1441 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Hantro decoder hardware driver.
+ *
+ * Copyright (c) 2017 - 2020, VeriSilicon Inc.
+ * Copyright (c) 2020 Intel Corporation
+ */
+
+#include "hantro_dec.h"
+#include "hantro_dwl_defs.h"
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/semaphore.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+#include <linux/version.h>
+#include <linux/wait.h>
+#include <linux/timer.h>
+#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/clk.h>
+
+static const int dec_hwid[] = {
+ 0x8001 /* VDEC */
+};
+
+ulong multicorebase[HXDEC_MAX_CORES] = {
+ SOCLE_LOGIC_0_BASE,
+ SOCLE_LOGIC_1_BASE
+};
+
+int irq[HXDEC_MAX_CORES] = {
+ DEC_IRQ_0,
+ DEC_IRQ_1
+};
+
+unsigned int iosize[HXDEC_MAX_CORES] = {
+ DEC_IO_SIZE_0,
+ DEC_IO_SIZE_1
+};
+
+/* KMB page lookup table */
+static unsigned long page_lut_read = KMB_VC8000D_PAGE_LUT;
+static u8 *page_lut_regs_read;
+
+/*
+ * Because one core may contain multi-pipeline,
+ * so multicore base may be changed
+ */
+unsigned long multicorebase_actual[HXDEC_MAX_CORES];
+int elements = 2;
+static struct device *parent_dev;
+
+struct hantrodec_t {
+ char *buffer;
+ unsigned int iosize[HXDEC_MAX_CORES];
+ u8 *hwregs[HXDEC_MAX_CORES];
+ int irq[HXDEC_MAX_CORES];
+ int hw_id[HXDEC_MAX_CORES];
+ int cores;
+ struct fasync_struct *async_queue_dec;
+ struct fasync_struct *async_queue_pp;
+};
+
+struct core_cfg {
+ /* indicate the supported format */
+ u32 cfg[HXDEC_MAX_CORES];
+ /* back up of cfg */
+ u32 cfg_backup[HXDEC_MAX_CORES];
+ /* indicate if main core exist */
+ int its_main_core_id[HXDEC_MAX_CORES];
+ /* indicate if aux core exist */
+ int its_aux_core_id[HXDEC_MAX_CORES];
+};
+
+static struct hantrodec_t hantrodec_data;
+static int reserve_io(void);
+static void release_io(void);
+static void reset_asic(struct hantrodec_t *dev);
+
+#ifdef HANTRODEC_DEBUG
+static void dump_regs(struct hantrodec_t *dev);
+#endif
+
+/* IRQ handler */
+static irqreturn_t hantrodec_isr(int irq, void *dev_id);
+static u32 dec_regs[HXDEC_MAX_CORES][DEC_IO_SIZE_MAX / 4];
+struct semaphore dec_core_sem;
+struct semaphore pp_core_sem;
+static int dec_irq;
+static int pp_irq;
+
+atomic_t irq_rx = ATOMIC_INIT(0);
+atomic_t irq_tx = ATOMIC_INIT(0);
+
+static struct file *dec_owner[HXDEC_MAX_CORES];
+static struct file *pp_owner[HXDEC_MAX_CORES];
+static int core_has_format(const u32 *cfg, int core, u32 format);
+
+static DEFINE_SPINLOCK(owner_lock);
+static DECLARE_WAIT_QUEUE_HEAD(dec_wait_queue);
+static DECLARE_WAIT_QUEUE_HEAD(pp_wait_queue);
+static DECLARE_WAIT_QUEUE_HEAD(hw_queue);
+
+static struct core_cfg config;
+static u32 timeout;
+
+static struct clk *hantro_clk_xin_vdec;
+static struct clk *hantro_clk_vdec;
+
+static int hantro_clk_enable(void)
+{
+ clk_prepare_enable(hantro_clk_xin_vdec);
+ clk_prepare_enable(hantro_clk_vdec);
+
+ return 0;
+}
+
+static int hantro_clk_disable(void)
+{
+ if (hantro_clk_xin_vdec)
+ clk_disable_unprepare(hantro_clk_xin_vdec);
+
+ if (hantro_clk_vdec)
+ clk_disable_unprepare(hantro_clk_vdec);
+
+ return 0;
+}
+
+u32 hantrodec_readbandwidth(int is_read_bw)
+{
+ int i;
+ u32 bandwidth = 0;
+ struct hantrodec_t *dev = &hantrodec_data;
+
+ for (i = 0; i < hantrodec_data.cores; i++) {
+ if (is_read_bw)
+ bandwidth +=
+ ioread32((void *)(dev->hwregs[i] +
+ HANTRO_VC8KD_REG_BWREAD * 4));
+ else
+ bandwidth += ioread32
+ ((void *)(dev->hwregs[i] +
+ HANTRO_VC8KD_REG_BWWRITE * 4));
+ }
+
+ return bandwidth * VC8KD_BURSTWIDTH;
+}
+
+static void read_core_config(struct hantrodec_t *dev)
+{
+ int c;
+ u32 reg, tmp, mask;
+
+ memset(config.cfg, 0, sizeof(config.cfg));
+
+ for (c = 0; c < dev->cores; c++) {
+ /* Decoder configuration */
+ if ((IS_VC8000D(dev->hw_id[c])) &&
+ config.its_main_core_id[c] < 0) {
+ reg = ioread32((void *)(dev->hwregs[c] +
+ HANTRODEC_SYNTH_CFG * 4));
+
+ tmp = (reg >> DWL_H264_E) & 0x3U;
+ if (tmp)
+ pr_info("hantrodec: core[%d] has H264\n", c);
+ config.cfg[c] |=
+ tmp ? 1 << DWL_CLIENT_TYPE_H264_DEC : 0;
+
+ tmp = (reg >> DWL_JPEG_E) & 0x01U;
+ if (tmp)
+ pr_info("hantrodec: core[%d] has JPEG\n", c);
+ config.cfg[c] |=
+ tmp ? 1 << DWL_CLIENT_TYPE_JPEG_DEC : 0;
+
+ tmp = (reg >> DWL_MPEG4_E) & 0x3U;
+ if (tmp)
+ pr_info("hantrodec: core[%d] has MPEG4\n", c);
+ config.cfg[c] |=
+ tmp ? 1 << DWL_CLIENT_TYPE_MPEG4_DEC : 0;
+
+ tmp = (reg >> DWL_VC1_E) & 0x3U;
+ if (tmp)
+ pr_info("hantrodec: core[%d] has VC1\n", c);
+ config.cfg[c] |= tmp ? 1 << DWL_CLIENT_TYPE_VC1_DEC : 0;
+
+ tmp = (reg >> DWL_MPEG2_E) & 0x01U;
+ if (tmp)
+ pr_info("hantrodec: core[%d] has MPEG2\n", c);
+ config.cfg[c] |=
+ tmp ? 1 << DWL_CLIENT_TYPE_MPEG2_DEC : 0;
+
+ tmp = (reg >> DWL_VP6_E) & 0x01U;
+ if (tmp)
+ pr_info("hantrodec: core[%d] has VP6\n", c);
+ config.cfg[c] |= tmp ? 1 << DWL_CLIENT_TYPE_VP6_DEC : 0;
+
+ reg = ioread32((void *)(dev->hwregs[c] +
+ HANTRODEC_SYNTH_CFG_2 * 4));
+
+ /* VP7 and WEBP is part of VP8 */
+ mask = (1 << DWL_VP8_E) | (1 << DWL_VP7_E) |
+ (1 << DWL_WEBP_E);
+ tmp = (reg & mask);
+ if (tmp & (1 << DWL_VP8_E))
+ pr_info("hantrodec: core[%d] has VP8\n", c);
+ if (tmp & (1 << DWL_VP7_E))
+ pr_info("hantrodec: core[%d] has VP7\n", c);
+ if (tmp & (1 << DWL_WEBP_E))
+ pr_info("hantrodec: core[%d] has WebP\n", c);
+ config.cfg[c] |= tmp ? 1 << DWL_CLIENT_TYPE_VP8_DEC : 0;
+
+ tmp = (reg >> DWL_AVS_E) & 0x01U;
+ if (tmp)
+ pr_info("hantrodec: core[%d] has AVS\n", c);
+ config.cfg[c] |= tmp ? 1 << DWL_CLIENT_TYPE_AVS_DEC : 0;
+
+ tmp = (reg >> DWL_RV_E) & 0x03U;
+ if (tmp)
+ pr_info("hantrodec: core[%d] has RV\n", c);
+ config.cfg[c] |= tmp ? 1 << DWL_CLIENT_TYPE_RV_DEC : 0;
+
+ reg = ioread32((void *)(dev->hwregs[c] +
+ HANTRODEC_SYNTH_CFG_3 * 4));
+
+ tmp = (reg >> DWL_HEVC_E) & 0x07U;
+ if (tmp)
+ pr_info("hantrodec: core[%d] has HEVC\n", c);
+ config.cfg[c] |=
+ tmp ? 1 << DWL_CLIENT_TYPE_HEVC_DEC : 0;
+
+ tmp = (reg >> DWL_VP9_E) & 0x07U;
+ if (tmp)
+ pr_info("hantrodec: core[%d] has VP9\n", c);
+ config.cfg[c] |= tmp ? 1 << DWL_CLIENT_TYPE_VP9_DEC : 0;
+
+ /* Post-processor configuration */
+ reg = ioread32((void *)(dev->hwregs[c] +
+ HANTRODECPP_CFG_STAT * 4));
+
+ tmp = (reg >> DWL_PP_E) & 0x01U;
+ if (tmp)
+ pr_info("hantrodec: core[%d] has PP\n", c);
+ config.cfg[c] |= tmp ? 1 << DWL_CLIENT_TYPE_PP : 0;
+
+ if (config.its_aux_core_id[c] >= 0) {
+ /* set main_core_id and aux_core_id */
+ reg = ioread32
+ ((void *)(dev->hwregs[c] +
+ HANTRODEC_SYNTH_CFG_2 * 4));
+
+ tmp = (reg >> DWL_H264_PIPELINE_E) & 0x01U;
+ if (tmp)
+ pr_info("hantrodec: core[%d] has
pipeline H264\n",
+ c);
+ config.cfg[config.its_aux_core_id[c]] |=
+ tmp ? 1 << DWL_CLIENT_TYPE_H264_DEC : 0;
+
+ tmp = (reg >> DWL_JPEG_PIPELINE_E) & 0x01U;
+ if (tmp)
+ pr_info("hantrodec: core[%d] has
pipeline JPEG\n",
+ c);
+ config.cfg[config.its_aux_core_id[c]] |=
+ tmp ? 1 << DWL_CLIENT_TYPE_JPEG_DEC : 0;
+ }
+ }
+ }
+ memcpy(config.cfg_backup, config.cfg, sizeof(config.cfg));
+}
+
+static int core_has_format(const u32 *cfg, int core, u32 format)
+{
+ return (cfg[core] & (1 << format)) ? 1 : 0;
+}
+
+static int get_dec_core(long core, struct hantrodec_t *dev, struct file *filp,
+ unsigned long format)
+{
+ int success = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&owner_lock, flags);
+ if (core_has_format(config.cfg, core, format) &&
+ !dec_owner[core]) {
+ dec_owner[core] = filp;
+ success = 1;
+ /*
+ * If one main core takes one format which doesn't supported
+ * by aux core, set aux core's cfg to none video format support
+ */
+ if (config.its_aux_core_id[core] >= 0) {
+ if (!core_has_format(config.cfg,
+ config.its_aux_core_id[core],
+ format))
+ config.cfg[config.its_aux_core_id[core]] = 0;
+ else
+ config.cfg[config.its_aux_core_id[core]] =
+ (1 << format);
+ }
+ /*
+ * If one aux core takes one format,
+ * set main core's cfg to aux core supported video format
+ */
+ else if (config.its_main_core_id[core] >= 0)
+ config.cfg[config.its_main_core_id[core]] =
+ (1 << format);
+ }
+
+ spin_unlock_irqrestore(&owner_lock, flags);
+
+ return success;
+}
+
+static int get_dec_core_any(long *core, struct hantrodec_t *dev, struct file
*filp,
+ unsigned long format)
+{
+ int success = 0;
+ long c;
+
+ *core = -1;
+
+ for (c = 0; c < dev->cores; c++) {
+ /* a free core that has format */
+ if (get_dec_core(c, dev, filp, format)) {
+ success = 1;
+ *core = c;
+ break;
+ }
+ }
+
+ return success;
+}
+
+static int get_dec_coreid(struct hantrodec_t *dev, struct file *filp,
+ unsigned long format)
+{
+ long c;
+ unsigned long flags;
+
+ int core_id = -1;
+
+ for (c = 0; c < dev->cores; c++) {
+ /* a core that has format */
+ spin_lock_irqsave(&owner_lock, flags);
+ if (core_has_format(config.cfg_backup, c, format)) {
+ core_id = c;
+ spin_unlock_irqrestore(&owner_lock, flags);
+ break;
+ }
+ spin_unlock_irqrestore(&owner_lock, flags);
+ }
+
+ return core_id;
+}
+
+static long reserve_decoder(struct hantrodec_t *dev, struct file *filp,
+ unsigned long format)
+{
+ long core = -1;
+
+ /* reserve a core */
+ if (down_interruptible(&dec_core_sem))
+ return -ERESTARTSYS;
+
+ /* lock a core that has specific format */
+ if (wait_event_interruptible(hw_queue, get_dec_core_any(&core, dev,
filp,
+ format) != 0))
+ return -ERESTARTSYS;
+ PDEBUG("reserve core %ld:%lx", core, (unsigned long)filp);
+
+ return core;
+}
+
+static void release_decoder(struct hantrodec_t *dev, long core)
+{
+ u32 status;
+ unsigned long flags;
+
+ status = ioread32
+ ((void *)(dev->hwregs[core] +
+ HANTRODEC_IRQ_STAT_DEC_OFF));
+
+ /* make sure HW is disabled */
+ if (status & HANTRODEC_DEC_E) {
+ PDEBUG("hantrodec: DEC[%li] still enabled -> reset\n", core);
+ /* abort decoder */
+ status |= HANTRODEC_DEC_ABORT | HANTRODEC_DEC_IRQ_DISABLE;
+ iowrite32(status, (void *)(dev->hwregs[core] +
+ HANTRODEC_IRQ_STAT_DEC_OFF));
+ }
+
+ spin_lock_irqsave(&owner_lock, flags);
+ /* If aux core released, revert main core's config back */
+ if (config.its_main_core_id[core] >= 0)
+ config.cfg[config.its_main_core_id[core]] =
+ config.cfg_backup[config.its_main_core_id[core]];
+
+ /* If main core released, revert aux core's config back */
+ if (config.its_aux_core_id[core] >= 0)
+ config.cfg[config.its_aux_core_id[core]] =
+ config.cfg_backup[config.its_aux_core_id[core]];
+
+ dec_owner[core] = NULL;
+ spin_unlock_irqrestore(&owner_lock, flags);
+ up(&dec_core_sem);
+ wake_up_interruptible_all(&hw_queue);
+}
+
+static long reserve_post_processor(struct hantrodec_t *dev, struct file *filp)
+{
+ unsigned long flags;
+ long core = 0;
+
+ /* single core PP only */
+ if (down_interruptible(&pp_core_sem))
+ return -ERESTARTSYS;
+
+ spin_lock_irqsave(&owner_lock, flags);
+ pp_owner[core] = filp;
+ spin_unlock_irqrestore(&owner_lock, flags);
+
+ return core;
+}
+
+static void release_post_processor(struct hantrodec_t *dev, long core)
+{
+ unsigned long flags;
+
+ u32 status =
+ ioread32((void *)(dev->hwregs[core] + HANTRO_IRQ_STAT_PP_OFF));
+
+ /* make sure HW is disabled */
+ if (status & HANTRO_PP_E) {
+ PDEBUG("hantrodec: PP[%li] still enabled -> reset\n", core);
+ /* disable IRQ */
+ status |= HANTRO_PP_IRQ_DISABLE;
+ /* disable postprocessor */
+ status &= (~HANTRO_PP_E);
+ iowrite32(0x10,
+ (void *)(dev->hwregs[core] + HANTRO_IRQ_STAT_PP_OFF));
+ }
+
+ spin_lock_irqsave(&owner_lock, flags);
+ pp_owner[core] = NULL;
+ spin_unlock_irqrestore(&owner_lock, flags);
+ up(&pp_core_sem);
+}
+
+long reserve_dec_pp(struct hantrodec_t *dev, struct file *filp,
+ unsigned long format)
+{
+ /* reserve core 0, DEC+PP for pipeline */
+ unsigned long flags;
+ long core = 0;
+
+ /* check that core has the requested dec format */
+ if (!core_has_format(config.cfg, core, format))
+ return -EFAULT;
+
+ /* check that core has PP */
+ if (!core_has_format(config.cfg, core, DWL_CLIENT_TYPE_PP))
+ return -EFAULT;
+
+ /* reserve a core */
+ if (down_interruptible(&dec_core_sem))
+ return -ERESTARTSYS;
+
+ /* wait until the core is available */
+ if (wait_event_interruptible(hw_queue, get_dec_core(core, dev, filp,
+ format) != 0)) {
+ up(&dec_core_sem);
+ return -ERESTARTSYS;
+ }
+
+ if (down_interruptible(&pp_core_sem)) {
+ release_decoder(dev, core);
+ return -ERESTARTSYS;
+ }
+
+ spin_lock_irqsave(&owner_lock, flags);
+ pp_owner[core] = filp;
+ spin_unlock_irqrestore(&owner_lock, flags);
+
+ return core;
+}
+
+static long dec_flush_regs(struct hantrodec_t *dev, struct core_desc *core)
+{
+ long ret = 0, i;
+
+ u32 id = core->id;
+
+ ret = copy_from_user(dec_regs[id], core->regs, HANTRO_VC8000D_REGS * 4);
+ if (ret) {
+ PDEBUG("copy_from_user failed, returned %li\n", ret);
+ return -EFAULT;
+ }
+ /* write all regs but the status reg[1] to hardware */
+ for (i = 2; i <= HANTRO_VC8000D_LAST_REG; i++)
+ iowrite32(dec_regs[id][i], (void *)(dev->hwregs[id] + i * 4));
+ /* write the status register, which may start the decoder */
+ iowrite32(dec_regs[id][1], (void *)(dev->hwregs[id] + 4));
+
+ PDEBUG("flushed registers on core %d\n", id);
+
+ return 0;
+}
+
+static long dec_refresh_regs(struct hantrodec_t *dev, struct core_desc *core)
+{
+ long ret, i;
+ u32 id = core->id;
+
+ for (i = 0; i <= HANTRO_VC8000D_LAST_REG; i++)
+ dec_regs[id][i] = ioread32((void *)(dev->hwregs[id] + i * 4));
+
+ ret = copy_to_user(core->regs, dec_regs[id],
+ HANTRO_VC8000D_LAST_REG * 4);
+ if (ret) {
+ PDEBUG("copy_to_user failed, returned %li\n", ret);
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static int check_dec_irq(struct hantrodec_t *dev, int id)
+{
+ unsigned long flags;
+ int rdy = 0;
+ const u32 irq_mask = (1 << id);
+
+ spin_lock_irqsave(&owner_lock, flags);
+
+ if (dec_irq & irq_mask) {
+ /* reset the wait condition(s) */
+ dec_irq &= ~irq_mask;
+ rdy = 1;
+ }
+
+ spin_unlock_irqrestore(&owner_lock, flags);
+
+ return rdy;
+}
+
+static long wait_dec_ready_and_refresh_regs(struct hantrodec_t *dev,
+ struct core_desc *core)
+{
+ u32 id = core->id;
+ long ret;
+
+ PDEBUG("wait_event_interruptible DEC[%d]\n", id);
+ ret = wait_event_interruptible_timeout
+ (dec_wait_queue, check_dec_irq(dev, id), msecs_to_jiffies(10));
+ if (ret == -ERESTARTSYS) {
+ pr_err("DEC[%d] failed to wait_event_interruptible
interrupted\n",
+ id);
+ return -ERESTARTSYS;
+ } else if (ret == 0) {
+ pr_err("DEC[%d] wait_event_interruptible timeout\n", id);
+ timeout = 1;
+ return -EBUSY;
+ }
+ atomic_inc(&irq_tx);
+
+ /* refresh registers */
+ return dec_refresh_regs(dev, core);
+}
+
+static long dec_write_regs(struct hantrodec_t *dev, struct core_desc *core)
+{
+ long ret = 0, i;
+ u32 id = core->id;
+
+ i = core->reg_id;
+ ret = copy_from_user(dec_regs[id] + core->reg_id,
+ core->regs + core->reg_id, 4);
+ if (ret) {
+ PDEBUG("copy_from_user failed, returned %li\n", ret);
+ return -EFAULT;
+ }
+ iowrite32(dec_regs[id][i], (void *)dev->hwregs[id] + i * 4);
+
+ return 0;
+}
+
+u32 *hantrodec_get_reg_addr(u32 coreid, u32 regid)
+{
+ if (coreid >= hantrodec_data.cores)
+ return NULL;
+ if (regid * 4 >= hantrodec_data.iosize[coreid])
+ return NULL;
+
+ return (u32 *)(hantrodec_data.hwregs[coreid] + regid * 4);
+}
+
+static long dec_read_regs(struct hantrodec_t *dev, struct core_desc *core)
+{
+ long ret, i;
+ u32 id = core->id;
+
+ i = core->reg_id;
+
+ /* read specific registers from hardware */
+ i = core->reg_id;
+ dec_regs[id][i] = ioread32((void *)dev->hwregs[id] + i * 4);
+ /* put registers to user space*/
+ ret = copy_to_user(core->regs + core->reg_id,
+ dec_regs[id] + core->reg_id, 4);
+ if (ret) {
+ PDEBUG("copy_to_user failed, returned %li\n", ret);
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static long pp_flush_regs(struct hantrodec_t *dev, struct core_desc *core)
+{
+ long ret = 0;
+ u32 id = core->id;
+ u32 i;
+
+ /* copy original dec regs to kernel space */
+ ret = copy_from_user(dec_regs[id] + HANTRO_PP_ORG_FIRST_REG,
+ core->regs + HANTRO_PP_ORG_FIRST_REG,
+ HANTRO_PP_ORG_REGS * 4);
+ if (ret) {
+ pr_err("copy_from_user failed, returned %li\n", ret);
+ return -EFAULT;
+ }
+ /* write all regs but the status reg[1] to hardware */
+ /* both original and extended regs need to be written */
+ for (i = HANTRO_PP_ORG_FIRST_REG + 1; i <= HANTRO_PP_ORG_LAST_REG; i++)
+ iowrite32(dec_regs[id][i], (void *)dev->hwregs[id] + i * 4);
+ /* write the stat reg, which may start the PP */
+ iowrite32(dec_regs[id][HANTRO_PP_ORG_FIRST_REG],
+ (void *)dev->hwregs[id] + HANTRO_PP_ORG_FIRST_REG * 4);
+
+ return 0;
+}
+
+static long pp_refresh_regs(struct hantrodec_t *dev, struct core_desc *core)
+{
+ long i, ret;
+ u32 id = core->id;
+ /* user has to know exactly what they are asking for */
+ if (core->size != (HANTRO_PP_ORG_REGS * 4))
+ return -EFAULT;
+ /* read all registers from hardware */
+ /* both original and extended regs need to be read */
+ for (i = HANTRO_PP_ORG_FIRST_REG; i <= HANTRO_PP_ORG_LAST_REG; i++)
+ dec_regs[id][i] = ioread32((void *)dev->hwregs[id] + i * 4);
+ /* put original registers to user space */
+ ret = copy_to_user(core->regs + HANTRO_PP_ORG_FIRST_REG,
+ dec_regs[id] + HANTRO_PP_ORG_FIRST_REG,
+ HANTRO_PP_ORG_REGS * 4);
+ if (ret) {
+ pr_err("copy_to_user failed, returned %li\n", ret);
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static int check_pp_irq(struct hantrodec_t *dev, int id)
+{
+ unsigned long flags;
+ int rdy = 0;
+ const u32 irq_mask = (1 << id);
+
+ spin_lock_irqsave(&owner_lock, flags);
+
+ if (pp_irq & irq_mask) {
+ /* reset the wait condition(s) */
+ pp_irq &= ~irq_mask;
+ rdy = 1;
+ }
+
+ spin_unlock_irqrestore(&owner_lock, flags);
+
+ return rdy;
+}
+
+static long wait_pp_ready_and_refresh_regs(struct hantrodec_t *dev,
+ struct core_desc *core)
+{
+ u32 id = core->id;
+
+ PDEBUG("wait_event_interruptible PP[%d]\n", id);
+ if (wait_event_interruptible(pp_wait_queue, check_pp_irq(dev, id))) {
+ pr_err("PP[%d] failed to wait_event_interruptible
interrupted\n",
+ id);
+ return -ERESTARTSYS;
+ }
+
+ atomic_inc(&irq_tx);
+
+ /* refresh registers */
+ return pp_refresh_regs(dev, core);
+}
+
+static int check_core_irq(struct hantrodec_t *dev, const struct file *filp,
+ int *id)
+{
+ unsigned long flags;
+ int rdy = 0, n = 0;
+
+ do {
+ u32 irq_mask = (1 << n);
+
+ spin_lock_irqsave(&owner_lock, flags);
+
+ if (dec_irq & irq_mask) {
+ PDEBUG("%s get irq for core %d:%lx", __func__, n,
+ (unsigned long)filp);
+ if (*id == n) {
+ /* we have an IRQ for our client */
+ /* reset the wait condition(s) */
+ dec_irq &= ~irq_mask;
+ /* signal ready core no. for our client */
+ *id = n;
+ rdy = 1;
+ spin_unlock_irqrestore(&owner_lock, flags);
+ break;
+ } else if (!dec_owner[n]) {
+ /* zombie IRQ */
+ PDEBUG("IRQ on core[%d], but no owner!\n", n);
+ /* reset the wait condition(s) */
+ dec_irq &= ~irq_mask;
+ }
+ }
+
+ spin_unlock_irqrestore(&owner_lock, flags);
+ n++; /* next core */
+ } while (n < dev->cores);
+
+ return rdy;
+}
+
+static long wait_core_ready(struct hantrodec_t *dev, const struct file *filp,
+ int *id)
+{
+ PDEBUG("wait_event_interruptible CORE\n");
+
+ if (wait_event_interruptible(dec_wait_queue,
+ check_core_irq(dev, filp, id))) {
+ pr_err("CORE failed to wait_event_interruptible
interrupted\n");
+ return -ERESTARTSYS;
+ }
+
+ atomic_inc(&irq_tx);
+
+ return 0;
+}
+
+/*-------------------------------------------------------------------------
+ * Function name : hantrodec_ioctl
+ * Description : communication method to/from the user space
+ *
+ * Return type : long
+ *-------------------------------------------------------------------------
+ */
+long hantrodec_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+ int err = 0;
+ u32 id;
+ long tmp;
+ struct core_desc core;
+
+ switch (_IOC_NR(cmd)) {
+ case _IOC_NR(HANTRODEC_IOC_CLI): {
+ id = arg;
+ if (id >= hantrodec_data.cores)
+ return -EFAULT;
+ disable_irq(hantrodec_data.irq[id]);
+ break;
+ }
+ case _IOC_NR(HANTRODEC_IOC_STI): {
+ id = arg;
+ if (id >= hantrodec_data.cores)
+ return -EFAULT;
+ enable_irq(hantrodec_data.irq[id]);
+ break;
+ }
+ case _IOC_NR(HANTRODEC_IOCGHWOFFSET): {
+ __get_user(id, (__u32 *)arg);
+ if (id >= hantrodec_data.cores)
+ return -EFAULT;
+
+ __put_user(multicorebase_actual[id], (unsigned long *)arg);
+ break;
+ }
+ case _IOC_NR(HANTRODEC_IOCGHWIOSIZE): {
+ __u32 io_size;
+
+ __get_user(id, (__u32 *)arg);
+ if (id >= hantrodec_data.cores)
+ return -EFAULT;
+ io_size = hantrodec_data.iosize[id];
+ __put_user(io_size, (u32 *)arg);
+
+ return 0;
+ }
+ case _IOC_NR(HANTRODEC_IOC_MC_OFFSETS): {
+ tmp = copy_to_user((unsigned long *)arg, multicorebase_actual,
+ sizeof(multicorebase_actual));
+ if (err) {
+ pr_err("copy_to_user failed, returned %li\n", tmp);
+ return -EFAULT;
+ }
+ break;
+ }
+ case _IOC_NR(HANTRODEC_IOC_MC_CORES):
+ __put_user(hantrodec_data.cores, (unsigned int *)arg);
+ PDEBUG("hantrodec_data.cores=%d\n", hantrodec_data.cores);
+ break;
+ case _IOC_NR(HANTRODEC_IOCS_DEC_PUSH_REG): {
+ struct core_desc core;
+
+ /* get registers from user space */
+ tmp = copy_from_user(&core, (void *)arg,
+ sizeof(struct core_desc));
+ if (tmp) {
+ pr_err("copy_from_user failed, returned %li\n", tmp);
+ return -EFAULT;
+ }
+
+ dec_flush_regs(&hantrodec_data, &core);
+ break;
+ }
+
+ case _IOC_NR(HANTRODEC_IOCS_DEC_WRITE_REG): {
+ /* get registers from user space */
+ tmp = copy_from_user(&core, (void *)arg,
+ sizeof(struct core_desc));
+ if (tmp) {
+ PDEBUG("copy_from_user failed, returned %li\n", tmp);
+ return -EFAULT;
+ }
+
+ dec_write_regs(&hantrodec_data, &core);
+ break;
+ }
+ case _IOC_NR(HANTRODEC_IOCS_PP_PUSH_REG): {
+ /* get registers from user space */
+ tmp = copy_from_user(&core, (void *)arg,
+ sizeof(struct core_desc));
+ if (tmp) {
+ pr_err("copy_from_user failed, returned %li\n", tmp);
+ return -EFAULT;
+ }
+
+ pp_flush_regs(&hantrodec_data, &core);
+ break;
+ }
+ case _IOC_NR(HANTRODEC_IOCS_DEC_PULL_REG): {
+ tmp = copy_from_user(&core, (void *)arg,
+ sizeof(struct core_desc));
+ if (tmp) {
+ pr_err("copy_from_user failed, returned %li\n", tmp);
+ return -EFAULT;
+ }
+
+ return dec_refresh_regs(&hantrodec_data, &core);
+ }
+ case _IOC_NR(HANTRODEC_IOCS_DEC_READ_REG): {
+ tmp = copy_from_user(&core, (void *)arg,
+ sizeof(struct core_desc));
+ if (tmp) {
+ PDEBUG("copy_from_user failed, returned %li\n", tmp);
+ return -EFAULT;
+ }
+
+ return dec_read_regs(&hantrodec_data, &core);
+ }
+ case _IOC_NR(HANTRODEC_IOCS_PP_PULL_REG): {
+ tmp = copy_from_user(&core, (void *)arg,
+ sizeof(struct core_desc));
+ if (tmp) {
+ pr_err("copy_from_user failed, returned %li\n", tmp);
+ return -EFAULT;
+ }
+
+ return pp_refresh_regs(&hantrodec_data, &core);
+ }
+ case _IOC_NR(HANTRODEC_IOCH_DEC_RESERVE): {
+ PDEBUG("Reserve DEC core, format = %li\n", arg);
+ return reserve_decoder(&hantrodec_data, filp, arg);
+ }
+ case _IOC_NR(HANTRODEC_IOCT_DEC_RELEASE): {
+ if (arg >= hantrodec_data.cores || dec_owner[arg] != filp) {
+ pr_err("bogus DEC release, core = %li\n", arg);
+ return -EFAULT;
+ }
+
+ PDEBUG("Release DEC, core = %li\n", arg);
+
+ release_decoder(&hantrodec_data, arg);
+
+ break;
+ }
+ case _IOC_NR(HANTRODEC_IOCQ_PP_RESERVE):
+ return reserve_post_processor(&hantrodec_data, filp);
+ case _IOC_NR(HANTRODEC_IOCT_PP_RELEASE): {
+ if (arg != 0 || pp_owner[arg] != filp) {
+ pr_err("bogus PP release %li\n", arg);
+ return -EFAULT;
+ }
+
+ release_post_processor(&hantrodec_data, arg);
+
+ break;
+ }
+ case _IOC_NR(HANTRODEC_IOCX_DEC_WAIT): {
+ tmp = copy_from_user(&core, (void *)arg,
+ sizeof(struct core_desc));
+ if (tmp) {
+ pr_err("copy_from_user failed, returned %li\n", tmp);
+ return -EFAULT;
+ }
+
+ return wait_dec_ready_and_refresh_regs(&hantrodec_data, &core);
+ }
+ case _IOC_NR(HANTRODEC_IOCX_PP_WAIT): {
+ tmp = copy_from_user(&core, (void *)arg,
+ sizeof(struct core_desc));
+ if (tmp) {
+ pr_err("copy_from_user failed, returned %li\n", tmp);
+ return -EFAULT;
+ }
+
+ return wait_pp_ready_and_refresh_regs(&hantrodec_data, &core);
+ }
+ case _IOC_NR(HANTRODEC_IOCG_CORE_WAIT): {
+ int id;
+
+ __get_user(id, (int *)arg);
+ tmp = wait_core_ready(&hantrodec_data, filp, &id);
+ __put_user(id, (int *)arg);
+ return tmp;
+ }
+ case _IOC_NR(HANTRODEC_IOX_ASIC_ID): {
+ __get_user(id, (u32 *)arg);
+ if (id >= hantrodec_data.cores)
+ return -EFAULT;
+ id = ioread32((void *)hantrodec_data.hwregs[id]);
+ __put_user(id, (u32 *)arg);
+ return 0;
+ }
+ case _IOC_NR(HANTRODEC_IOCG_CORE_ID): {
+ PDEBUG("Get DEC core_id, format = %li\n", arg);
+ tmp = get_dec_coreid(&hantrodec_data, filp, arg);
+ return tmp;
+ }
+ case _IOC_NR(HANTRODEC_DEBUG_STATUS): {
+ PDEBUG("hantrodec: dec_irq = 0x%08x\n", dec_irq);
+ PDEBUG("hantrodec: pp_irq = 0x%08x\n", pp_irq);
+
+ PDEBUG("hantrodec: IRQs received/sent2user = %d / %d\n",
+ atomic_read(&irq_rx), atomic_read(&irq_tx));
+
+ for (tmp = 0; tmp < hantrodec_data.cores; tmp++) {
+ PDEBUG("hantrodec: dec_core[%li] %s\n", tmp,
+ !dec_owner[tmp] ? "FREE" : "RESERVED");
+ PDEBUG("hantrodec: pp_core[%li] %s\n", tmp,
+ !pp_owner[tmp] ? "FREE" : "RESERVED");
+ }
+ break;
+ }
+ default:
+ return -ENOTTY;
+ }
+
+ return 0;
+}
+
+/*---------------------------------------------------------------------------
+ *Function name : hantrodec_release
+ *Description : Release driver
+ *
+ *Return type : int
+ *----------------------------------------------------------------------------
+ */
+int hantrodec_release(struct file *filp)
+{
+ int n;
+ struct hantrodec_t *dev = &hantrodec_data;
+
+ for (n = 0; n < dev->cores; n++) {
+ if (dec_owner[n] == filp) {
+ PDEBUG("releasing dec core %i lock\n", n);
+ release_decoder(dev, n);
+ }
+ }
+
+ for (n = 0; n < 1; n++) {
+ if (pp_owner[n] == filp) {
+ PDEBUG("releasing pp core %i lock\n", n);
+ release_post_processor(dev, n);
+ }
+ }
+
+ return 0;
+}
+
+int hantrodec_open(struct inode *inode, struct file *filp)
+{
+ return 0;
+}
+
+/*---------------------------------------------------------------------------
+ *Function name : hantrodec_init
+ *Description : Initialize the driver
+ *
+ *Return type : int
+ *---------------------------------------------------------------------------
+ */
+int hantrodec_init(struct platform_device *pdev)
+{
+ int result = 0;
+ int irq_0;
+ int i;
+
+ dec_irq = 0;
+ pp_irq = 0;
+ parent_dev = &pdev->dev;
+ pr_info("hantrodec: Init multi core[0] at 0x%16lx\n"
+ "core[1] at 0x%16lx\n",
+ multicorebase[0], multicorebase[1]);
+
+ hantrodec_data.cores = 0;
+ hantrodec_data.iosize[0] = DEC_IO_SIZE_0;
+ hantrodec_data.irq[0] = -1;
+ hantrodec_data.iosize[1] = DEC_IO_SIZE_1;
+ hantrodec_data.irq[1] = -1;
+
+ for (i = 0; i < HXDEC_MAX_CORES; i++) {
+ hantrodec_data.hwregs[i] = 0;
+ /*
+ * If user gave less core bases that we have by default,
+ * invalidate default bases
+ */
+ if (elements && i >= elements)
+ multicorebase[i] = -1;
+ }
+
+ hantrodec_data.async_queue_dec = NULL;
+ hantrodec_data.async_queue_pp = NULL;
+ /* Enable and set the VDEC clks */
+ hantro_clk_xin_vdec = clk_get(&pdev->dev, "clk_xin_vdec");
+ hantro_clk_vdec = clk_get(&pdev->dev, "clk_vdec");
+ hantro_clk_enable();
+ /* Set KMB CLK to 700 Mhz VDEC */
+ pr_info("hantrodec: Before setting any clocks: clk_xin_vdec: %ld |
clk_vdec %ld\n",
+ clk_get_rate(hantro_clk_xin_vdec),
+ clk_get_rate(hantro_clk_vdec));
+ clk_set_rate(hantro_clk_xin_vdec, 700000000);
+ pr_info("hantrodec: Set clocks to 700Mhz: clk_xin_vdec: %ld | clk_vdec
%ld\n",
+ clk_get_rate(hantro_clk_xin_vdec),
+ clk_get_rate(hantro_clk_vdec));
+
+ result = reserve_io();
+
+ if (result < 0)
+ goto err;
+
+ memset(dec_owner, 0, sizeof(dec_owner));
+ memset(pp_owner, 0, sizeof(pp_owner));
+ sema_init(&dec_core_sem, hantrodec_data.cores);
+ sema_init(&pp_core_sem, 1);
+
+ /* read configuration for all cores */
+ read_core_config(&hantrodec_data);
+ /* reset hardware */
+ reset_asic(&hantrodec_data);
+
+ /* Dynamic AXI ID and Page LUT routines */
+ /* Register and set the page lookup table for read */
+ if (!request_mem_region(page_lut_read, hantrodec_data.iosize[0],
+ "hantrodec_pagelut_read")) {
+ pr_info("hantrodec: failed to reserve page lookup table
registers\n");
+ return -EBUSY;
+ }
+ page_lut_regs_read =
+ (u8 *)ioremap(page_lut_read, hantrodec_data.iosize[0]);
+ if (!page_lut_regs_read)
+ pr_info("hantrodec: failed to ioremap page lookup table
registers\n");
+
+ /* Set VDEC RD Page LUT AXI ID 0-15 to 0x4 */
+ iowrite32(0x04040404, (void *)page_lut_regs_read);
+ pr_info("hantrodec: RD AXI ID 3:0 = %x\n",
+ ioread32((void *)page_lut_regs_read));
+ iowrite32(0x04040404, (void *)page_lut_regs_read + 0x4);
+ pr_info("hantrodec: RD AXI ID 7:4 = %x\n",
+ ioread32((void *)page_lut_regs_read + 0x4));
+ iowrite32(0x04040404, (void *)page_lut_regs_read + 0x8);
+ pr_info("hantrodec: RD AXI ID 11:8 = %x\n",
+ ioread32((void *)page_lut_regs_read + 0x8));
+ iowrite32(0x04040404, (void *)page_lut_regs_read + 0xc);
+ pr_info("hantrodec: RD AXI ID 15:12 = %x\n",
+ ioread32((void *)page_lut_regs_read + 0xc));
+
+ /* dynamic WR AXI ID */
+ /* Set sw_dec_axi_wr_id_e to 1 */
+ iowrite32(1 << 13, (void *)hantrodec_data.hwregs[0] + 0xE8);
+ pr_info("hantrodec: sw_dec_axi_wr_id_e = %x\n",
+ ioread32((void *)hantrodec_data.hwregs[0] + 0xE8));
+ /*
+ * Set WR Page LUT AXI ID 0-3, 6-15 to 0x4 and
+ * WR Page LUT AXI ID 4,5 to 0x0
+ */
+ iowrite32(0x04040404, (void *)page_lut_regs_read + 0x10);
+ pr_info("hantrodec: page_lut_regs WR AXI ID 3:0= %x\n",
+ ioread32((void *)page_lut_regs_read + 0x10));
+ iowrite32(0x04040000, (void *)page_lut_regs_read + 0x14);
+ pr_info("hantrodec: page_lut_regs WR AXI ID 7:4= %x\n",
+ ioread32((void *)page_lut_regs_read + 0x14));
+ iowrite32(0x04040404, (void *)page_lut_regs_read + 0x18);
+ pr_info("hantrodec: page_lut_regs WR AXI ID 11:8= %x\n",
+ ioread32((void *)page_lut_regs_read + 0x18));
+ iowrite32(0x04040404, (void *)page_lut_regs_read + 0x1c);
+ pr_info("hantrodec: page_lut_regs WR AXI ID 15:12= %x\n",
+ ioread32((void *)page_lut_regs_read + 0x1c));
+
+ /* register irq for each core */
+ irq_0 = irq[0];
+ if (irq_0 > 0) {
+ PDEBUG("irq_0 platform_get_irq\n");
+ irq_0 = platform_get_irq_byname(pdev, "irq_hantro_decoder");
+ result = request_irq(irq_0, hantrodec_isr, IRQF_SHARED,
+ "irq_hantro_decoder",
+ (void *)&hantrodec_data);
+ if (result != 0) {
+ PDEBUG("can't reserve irq0\n");
+ goto err0;
+ }
+ PDEBUG("reserve irq0 success with irq0 = %d\n", irq_0);
+ hantrodec_data.irq[0] = irq_0;
+ } else {
+ PDEBUG("can't get irq0 and irq0 value = %d\n", irq_0);
+ result = -EINVAL;
+ goto err0;
+ }
+
+ pr_info("hantrodec: module inserted.\n");
+
+ return 0;
+err0:
+ release_io();
+
+err:
+ return result;
+}
+
+/*---------------------------------------------------------------------------
+ *Function name : hantrodec_cleanup
+ *Description : clean up
+ *
+ *Return type : int
+ *---------------------------------------------------------------------------
+ */
+void hantrodec_cleanup(void)
+{
+ struct hantrodec_t *dev = &hantrodec_data;
+ int n = 0;
+ /* reset hardware */
+ reset_asic(dev);
+
+ /* free the IRQ */
+ for (n = 0; n < dev->cores; n++) {
+ if (dev->irq[n] != -1)
+ free_irq(dev->irq[n], (void *)dev);
+ }
+
+ release_io();
+ hantro_clk_disable();
+ pr_info("hantrodec: module removed\n");
+}
+
+/*---------------------------------------------------------------------------
+ *Function name : check_hw_id
+ *Return type : int
+ *---------------------------------------------------------------------------
+ */
+static int check_hw_id(struct hantrodec_t *dev)
+{
+ long hwid;
+ int i;
+ size_t num_hw = sizeof(dec_hwid) / sizeof(*dec_hwid);
+
+ int found = 0;
+
+ for (i = 0; i < dev->cores; i++) {
+ if (dev->hwregs[i]) {
+ hwid = readl(dev->hwregs[i]);
+ PDEBUG("hantrodec: core %d HW ID=0x%16lx\n", i, hwid);
+ hwid = (hwid >> 16) & 0xFFFF;
+
+ while (num_hw--) {
+ if (hwid == dec_hwid[num_hw]) {
+ PDEBUG("hantrodec: Supported HW found
at 0x%16lx\n",
+ multicorebase_actual[i]);
+ found++;
+ dev->hw_id[i] = hwid;
+ break;
+ }
+ }
+ if (!found) {
+ PDEBUG("hantrodec: Unknown HW found at
0x%16lx\n",
+ multicorebase_actual[i]);
+ return 0;
+ }
+ found = 0;
+ num_hw = sizeof(dec_hwid) / sizeof(*dec_hwid);
+ }
+ }
+
+ return 1;
+}
+
+/*---------------------------------------------------------------------------
+ *Function name : reserve_io
+ *Description : IO reserve
+ *
+ *Return type : int
+ *---------------------------------------------------------------------------
+ */
+static int reserve_io(void)
+{
+ int i;
+ long hwid;
+ u32 reg;
+
+ memcpy(multicorebase_actual, multicorebase,
+ HXDEC_MAX_CORES * sizeof(unsigned long));
+ memcpy((unsigned int *)(hantrodec_data.iosize), iosize,
+ HXDEC_MAX_CORES * sizeof(unsigned int));
+ memcpy((unsigned int *)hantrodec_data.irq, irq,
+ HXDEC_MAX_CORES * sizeof(int));
+
+ for (i = 0; i < HXDEC_MAX_CORES; i++) {
+ if (multicorebase_actual[i] != -1) {
+ if (!request_mem_region(multicorebase_actual[i],
+ hantrodec_data.iosize[i],
+ "hantrodec0")) {
+ PDEBUG("hantrodec: failed to reserve HW
regs\n");
+ return -EBUSY;
+ }
+
+ hantrodec_data.hwregs[i] =
+ (u8 *)ioremap(multicorebase_actual[i],
+ hantrodec_data.iosize[i]);
+
+ if (!hantrodec_data.hwregs[i]) {
+ PDEBUG("hantrodec: failed to ioremap HW
regs\n");
+ release_io();
+ return -EBUSY;
+ }
+
+ hantrodec_data.cores++;
+ config.its_main_core_id[i] = -1;
+ config.its_aux_core_id[i] = -1;
+ hwid = ((readl(hantrodec_data.hwregs[i])) >> 16) &
+ 0xFFFF;
+
+ if (IS_VC8000D(hwid)) {
+ reg = readl(hantrodec_data.hwregs[i] +
+ HANTRODEC_SYNTH_CFG_2_OFF);
+ if (((reg >> DWL_H264_PIPELINE_E) & 0x01U) ||
+ ((reg >> DWL_JPEG_PIPELINE_E) & 0x01U)) {
+ i++;
+ config.its_aux_core_id[i - 1] = i;
+ config.its_main_core_id[i] = i - 1;
+ config.its_aux_core_id[i] = -1;
+ multicorebase_actual[i] =
+ multicorebase_actual[i - 1] +
+ 0x800;
+ hantrodec_data.iosize[i] =
+ hantrodec_data.iosize[i - 1];
+ memcpy(multicorebase_actual + i + 1,
+ multicorebase + i,
+ (HXDEC_MAX_CORES - i - 1) *
+ sizeof(unsigned long));
+ memcpy((unsigned int *)(hantrodec_data
+ .iosize
+
+ i + 1),
+ iosize + i,
+ (HXDEC_MAX_CORES - i - 1) *
+ sizeof(unsigned int));
+ if (!request_mem_region
+ (multicorebase_actual[i],
+ hantrodec_data.iosize[i],
+ "hantrodec0")) {
+ PDEBUG("hantrodec: failed to
reserve HW regs\n");
+ return -EBUSY;
+ }
+
+ hantrodec_data.hwregs[i] =
+ (u8 *)ioremap
+
(multicorebase_actual[i],
+ hantrodec_data
+ .iosize[i]);
+
+ if (!hantrodec_data.hwregs[i]) {
+ PDEBUG("hantrodec: failed to
ioremap HW regs\n");
+ release_io();
+ return -EBUSY;
+ }
+ hantrodec_data.cores++;
+ }
+ }
+ }
+ }
+
+ /* check for correct HW */
+ if (!check_hw_id(&hantrodec_data)) {
+ release_io();
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+/*---------------------------------------------------------------------------
+ *Function name : release_io
+ *Description : release
+ *
+ *Return type : void
+ *---------------------------------------------------------------------------
+ */
+static void release_io(void)
+{
+ int i;
+
+ for (i = 0; i < hantrodec_data.cores; i++) {
+ if (hantrodec_data.hwregs[i])
+ iounmap((void *)hantrodec_data.hwregs[i]);
+ release_mem_region(multicorebase_actual[i],
+ hantrodec_data.iosize[i]);
+ }
+
+ iounmap((void *)page_lut_regs_read);
+ release_mem_region(page_lut_read, hantrodec_data.iosize[0]);
+}
+
+/*---------------------------------------------------------------------------
+ *Function name : hantrodec_isr
+ *Description : interrupt handler
+ *
+ *Return type : irqreturn_t
+ *---------------------------------------------------------------------------
+ */
+static irqreturn_t hantrodec_isr(int irq, void *dev_id)
+{
+ unsigned long flags;
+ unsigned int handled = 0;
+ int i;
+
+ u8 *hwregs;
+ struct hantrodec_t *dev;
+ u32 irq_status_dec;
+
+ dev = (struct hantrodec_t *)dev_id;
+ spin_lock_irqsave(&owner_lock, flags);
+
+ for (i = 0; i < dev->cores; i++) {
+ u8 *hwregs = dev->hwregs[i];
+
+ /* interrupt status register read */
+ irq_status_dec =
+ ioread32((void *)hwregs + HANTRODEC_IRQ_STAT_DEC_OFF);
+ PDEBUG("%d core irq = %x\n", i, irq_status_dec);
+ if (irq_status_dec & HANTRODEC_DEC_IRQ) {
+ /* clear dec IRQ */
+ irq_status_dec &= (~HANTRODEC_DEC_IRQ);
+ iowrite32(irq_status_dec,
+ (void *)hwregs + HANTRODEC_IRQ_STAT_DEC_OFF);
+
+ PDEBUG("decoder IRQ received! core %d\n", i);
+
+ atomic_inc(&irq_rx);
+
+ dec_irq |= (1 << i);
+
+ wake_up_interruptible_all(&dec_wait_queue);
+ handled++;
+ }
+ }
+
+ spin_unlock_irqrestore(&owner_lock, flags);
+ if (!handled)
+ PDEBUG("IRQ received, but not hantrodec's!\n");
+ (void)hwregs;
+
+ return IRQ_RETVAL(handled);
+}
+
+/*---------------------------------------------------------------------------
+ *Function name : reset_asic
+ *Description : reset asic
+ *
+ *Return type :
+ *---------------------------------------------------------------------------
+ */
+static void reset_asic(struct hantrodec_t *dev)
+{
+ int i, j;
+ u32 status;
+
+ for (j = 0; j < dev->cores; j++) {
+ status = ioread32((void *)dev->hwregs[j] +
+ HANTRODEC_IRQ_STAT_DEC_OFF);
+
+ if (status & HANTRODEC_DEC_E) {
+ /* abort with IRQ disabled */
+ status =
+ HANTRODEC_DEC_ABORT | HANTRODEC_DEC_IRQ_DISABLE;
+ iowrite32(status, (void *)dev->hwregs[j] +
+ HANTRODEC_IRQ_STAT_DEC_OFF);
+ }
+
+ for (i = 4; i < dev->iosize[j]; i += 4)
+ iowrite32(0, (void *)dev->hwregs[j] + i);
+ }
+}
diff --git a/drivers/gpu/drm/hantro/hantro_dec.h
b/drivers/gpu/drm/hantro/hantro_dec.h
new file mode 100644
index 0000000..c0f7573
--- /dev/null
+++ b/drivers/gpu/drm/hantro/hantro_dec.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Hantro decoder hardware driver header file.
+ *
+ * Copyright (c) 2017 - 2020, VeriSilicon Inc.
+ * Copyright (c) 2020 Intel Corporation
+ */
+
+#ifndef _HANTRODEC_H_
+#define _HANTRODEC_H_
+#include <linux/ioctl.h>
+#include <linux/types.h>
+#include "hantro_drm.h"
+
+#undef PDEBUG
+#ifdef HANTRODEC_DEBUG
+#ifdef __KERNEL__
+#define PDEBUG(fmt, args...) pr_info("hantrodec: " fmt, ##args)
+#else
+#define PDEBUG(fmt, args...) fprintf(stderr, fmt, ##args)
+#endif
+#else
+#define PDEBUG(fmt, args...)
+#endif
+
+/* hantro PP regs */
+#define HANTRO_PP_ORG_REGS 41
+#define HANTRO_PP_ORG_FIRST_REG 60
+#define HANTRO_PP_ORG_LAST_REG 100
+#define HANTRO_PP_EXT_FIRST_REG 146
+#define HANTRO_PP_EXT_LAST_REG 154
+
+/* hantro VC8000D reg config */
+#define HANTRO_VC8000D_REGS 342 /* VC8000D total regs */
+#define HANTRO_VC8000D_FIRST_REG 0
+#define HANTRO_VC8000D_LAST_REG (HANTRO_VC8000D_REGS - 1)
+#define HANTRO_VC8KD_REG_BWREAD 300
+#define HANTRO_VC8KD_REG_BWWRITE 301
+#define VC8KD_BURSTWIDTH 16
+#define DEC_IO_SIZE_MAX (HANTRO_VC8000D_REGS * 4)
+#define HXDEC_MAX_CORES 2
+
+/* Logic module base address */
+#define SOCLE_LOGIC_0_BASE 0x20888000
+#define SOCLE_LOGIC_1_BASE 0x20888800
+#define DEC_IO_SIZE_0 DEC_IO_SIZE_MAX /* bytes */
+#define DEC_IO_SIZE_1 DEC_IO_SIZE_MAX /* bytes */
+#define DEC_IRQ_0 138
+#define DEC_IRQ_1 138
+#define KMB_VC8000D_PAGE_LUT 0x20889000
+#define IS_VC8000D(hw_id) (((hw_id) == 0x8001) ? 1 : 0)
+
+int hantrodec_init(struct platform_device *pdev);
+void hantrodec_cleanup(void);
+long hantrodec_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
+u32 *hantrodec_get_reg_addr(u32 coreid, u32 regid);
+int hantrodec_open(struct inode *inode, struct file *filp);
+u32 hantrodec_readbandwidth(int is_read_bw);
+#endif /* !_HANTRODEC_H_ */
diff --git a/drivers/gpu/drm/hantro/hantro_dwl_defs.h
b/drivers/gpu/drm/hantro/hantro_dwl_defs.h
new file mode 100644
index 0000000..4411c62
--- /dev/null
+++ b/drivers/gpu/drm/hantro/hantro_dwl_defs.h
@@ -0,0 +1,101 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Hantro driver hardware register definition.
+ *
+ * Copyright (c) 2017 - 2020, VeriSilicon Inc.
+ * Copyright (c) 2020 Intel Corporation
+ */
+
+#ifndef SOFTWARE_LINUX_DWL_DWL_DEFS_H_
+#define SOFTWARE_LINUX_DWL_DWL_DEFS_H_
+
+#define DWL_CLIENT_TYPE_H264_DEC 1U
+#define DWL_CLIENT_TYPE_MPEG4_DEC 2U
+#define DWL_CLIENT_TYPE_JPEG_DEC 3U
+#define DWL_CLIENT_TYPE_PP 4U
+#define DWL_CLIENT_TYPE_VC1_DEC 5U
+#define DWL_CLIENT_TYPE_MPEG2_DEC 6U
+#define DWL_CLIENT_TYPE_VP6_DEC 7U
+#define DWL_CLIENT_TYPE_AVS_DEC 8U
+#define DWL_CLIENT_TYPE_RV_DEC 9U
+#define DWL_CLIENT_TYPE_VP8_DEC 10U
+#define DWL_CLIENT_TYPE_VP9_DEC 11U
+#define DWL_CLIENT_TYPE_HEVC_DEC 12U
+
+#define DWL_MPEG2_E 31 /* 1 bit */
+#define DWL_VC1_E 29 /* 2 bits */
+#define DWL_JPEG_E 28 /* 1 bit */
+#define DWL_MPEG4_E 26 /* 2 bits */
+#define DWL_H264_E 24 /* 2 bits */
+#define DWL_VP6_E 23 /* 1 bit */
+#define DWL_RV_E 26 /* 2 bits */
+#define DWL_VP8_E 23 /* 1 bit */
+#define DWL_VP7_E 24 /* 1 bit */
+#define DWL_WEBP_E 19 /* 1 bit */
+#define DWL_AVS_E 22 /* 1 bit */
+#define DWL_G1_PP_E 16 /* 1 bit */
+#define DWL_G2_PP_E 31 /* 1 bit */
+#define DWL_PP_E 31 /* 1 bit */
+#define DWL_HEVC_E 26 /* 3 bits */
+#define DWL_VP9_E 29 /* 3 bits */
+
+#define DWL_H264_PIPELINE_E 31 /* 1 bit */
+#define DWL_JPEG_PIPELINE_E 30 /* 1 bit */
+
+#define DWL_G2_HEVC_E 0 /* 1 bits */
+#define DWL_G2_VP9_E 1 /* 1 bits */
+#define DWL_G2_RFC_E 2 /* 1 bits */
+#define DWL_RFC_E 17 /* 2 bits */
+#define DWL_G2_DS_E 3 /* 1 bits */
+#define DWL_DS_E 28 /* 3 bits */
+#define DWL_HEVC_VER 8 /* 4 bits */
+#define DWL_VP9_PROFILE 12 /* 3 bits */
+#define DWL_RING_E 16 /* 1 bits */
+
+#define HANTRODEC_IRQ_STAT_DEC 1
+#define HANTRODEC_IRQ_STAT_DEC_OFF (HANTRODEC_IRQ_STAT_DEC * 4)
+
+#define HANTRODECPP_SYNTH_CFG 60
+#define HANTRODECPP_SYNTH_CFG_OFF (HANTRODECPP_SYNTH_CFG * 4)
+#define HANTRODEC_SYNTH_CFG 50
+#define HANTRODEC_SYNTH_CFG_OFF (HANTRODEC_SYNTH_CFG * 4)
+#define HANTRODEC_SYNTH_CFG_2 54
+#define HANTRODEC_SYNTH_CFG_2_OFF (HANTRODEC_SYNTH_CFG_2 * 4)
+#define HANTRODEC_SYNTH_CFG_3 56
+#define HANTRODEC_SYNTH_CFG_3_OFF (HANTRODEC_SYNTH_CFG_3 * 4)
+#define HANTRODEC_CFG_STAT 23
+#define HANTRODEC_CFG_STAT_OFF (HANTRODEC_CFG_STAT * 4)
+#define HANTRODECPP_CFG_STAT 260
+#define HANTRODECPP_CFG_STAT_OFF (HANTRODECPP_CFG_STAT * 4)
+/* VC8000D HW build id */
+#define HANTRODEC_HW_BUILD_ID 309
+#define HANTRODEC_HW_BUILD_ID_OFF (HANTRODEC_HW_BUILD_ID * 4)
+
+#define HANTRODEC_DEC_E 0x01
+#define HANTRODEC_PP_E 0x01
+#define HANTRODEC_DEC_ABORT 0x20
+#define HANTRODEC_DEC_IRQ_DISABLE 0x10
+#define HANTRODEC_DEC_IRQ 0x100
+
+/* Legacy from G1 */
+#define HANTRO_IRQ_STAT_DEC 1
+#define HANTRO_IRQ_STAT_DEC_OFF (HANTRO_IRQ_STAT_DEC * 4)
+#define HANTRO_IRQ_STAT_PP 60
+#define HANTRO_IRQ_STAT_PP_OFF (HANTRO_IRQ_STAT_PP * 4)
+
+#define HANTROPP_SYNTH_CFG 100
+#define HANTROPP_SYNTH_CFG_OFF (HANTROPP_SYNTH_CFG * 4)
+#define HANTRODEC_SYNTH_CFG 50
+#define HANTRODEC_SYNTH_CFG_OFF (HANTRODEC_SYNTH_CFG * 4)
+#define HANTRODEC_SYNTH_CFG_2 54
+#define HANTRODEC_SYNTH_CFG_2_OFF (HANTRODEC_SYNTH_CFG_2 * 4)
+
+#define HANTRO_DEC_E 0x01
+#define HANTRO_PP_E 0x01
+#define HANTRO_DEC_ABORT 0x20
+#define HANTRO_DEC_IRQ_DISABLE 0x10
+#define HANTRO_PP_IRQ_DISABLE 0x10
+#define HANTRO_DEC_IRQ 0x100
+#define HANTRO_PP_IRQ 0x100
+
+#endif /* SOFTWARE_LINUX_DWL_DWL_DEFS_H_ */
--
1.9.1
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