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Commit 777bece5 authored by Tingwei Zhang's avatar Tingwei Zhang
Browse files

soc: qcom: dcc: Support new DCC HW feature 



Add support to new register memory map, fix loop offset and
dynamic number of link list.

Change-Id: Ibadfa723842dae80cdd50bf08018d86c2ef30b94
Signed-off-by: default avatarTingwei Zhang <tingwei@codeaurora.org>
parent de99f57c

drivers/soc/qcom/dcc_v2.c

+110 −48
Original line number Diff line number Diff line
@@ -25,9 +25,9 @@ 
#define BVAL(val, n)		((val & BIT(n)) >> n)



#define dcc_writel(drvdata, val, off)					\

	__raw_writel((val), drvdata->base + off)

	__raw_writel((val), drvdata->base + dcc_offset_conv(drvdata, off))

#define dcc_readl(drvdata, off)						\

	__raw_readl(drvdata->base + off)

	__raw_readl(drvdata->base + dcc_offset_conv(drvdata, off))



#define dcc_sram_readl(drvdata, off)					\

	__raw_readl(drvdata->ram_base + off)
@@ -37,23 +37,35 @@ 
/* DCC registers */

#define DCC_HW_VERSION			(0x00)

#define DCC_HW_INFO			(0x04)

#define DCC_EXEC_CTRL			(0x08)

#define DCC_STATUS			(0x0C)

#define DCC_CFG				(0x10)

#define DCC_FDA_CURR			(0x14)

#define DCC_LLA_CURR			(0x18)

#define DCC_LL_LOCK(m)			(0x1C + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_CFG(m)			(0x20 + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_BASE(m)			(0x24 + 0x80 * (m + HLOS_LIST_START))

#define DCC_FD_BASE(m)			(0x28 + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_TIMEOUT(m)		(0x2c + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_INT_ENABLE(m)		(0x30 + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_INT_STATUS(m)		(0x34 + 0x80 * (m + HLOS_LIST_START))

#define DCC_FDA_CAPTURED(m)		(0x38 + 0x80 * (m + HLOS_LIST_START))

#define DCC_LLA_CAPTURED(m)		(0x3C + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_CRC_CAPTURED(m)		(0x40 + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_SW_TRIGGER(m)		(0x44 + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_BUS_ACCESS_STATUS(m)	(0x48 + 0x80 * (m + HLOS_LIST_START))

#define DCC_SRAM_SIZE_INFO		(0x08)

#define DCC_APU_INFO			(0x0C)

#define DCC_LL_NUM_INFO			(0x10)

#define DCC_TIMEOUT_SIGNATURE		(0x14)

#define DCC_EXEC_CTRL			(0x18)

#define DCC_STATUS			(0x1C)

#define DCC_CFG				(0x20)

#define DCC_FDA_CURR			(0x24)

#define DCC_LLA_CURR			(0x28)

#define DCC_LL_LOCK(m)			(0x2C + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_CFG(m)			(0x30 + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_BASE(m)			(0x34 + 0x80 * (m + HLOS_LIST_START))

#define DCC_FD_BASE(m)			(0x38 + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_TIMEOUT(m)		(0x3c + 0x80 * (m + HLOS_LIST_START))

#define DCC_TRANS_TIMEOUT(m)		(0x40 + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_INT_ENABLE(m)		(0x44 + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_INT_STATUS(m)		(0x48 + 0x80 * (m + HLOS_LIST_START))

#define DCC_FDA_CAPTURED(m)		(0x4C + 0x80 * (m + HLOS_LIST_START))

#define DCC_LLA_CAPTURED(m)		(0x50 + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_CRC_CAPTURED(m)		(0x54 + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_SW_TRIGGER(m)		(0x58 + 0x80 * (m + HLOS_LIST_START))

#define DCC_LL_BUS_ACCESS_STATUS(m)	(0x5C + 0x80 * (m + HLOS_LIST_START))



#define DCC_MAP2_LEVEL1			(0x18)

#define DCC_MAP2_OFFSET1		(0x10)

#define DCC_MAP2_LEVEL2			(0x44)

#define DCC_MAP2_OFFSET2		(0x14)



#define DCC_FIX_LOOP_OFFSET		(16)



#define DCC_REG_DUMP_MAGIC_V2		(0x42445953)

#define DCC_REG_DUMP_VER		(1)
@@ -129,23 +141,36 @@ struct dcc_drvdata { 
	void __iomem		*ram_base;

	uint32_t		ram_size;

	uint32_t		ram_offset;

	enum dcc_data_sink	data_sink[DCC_MAX_LINK_LIST];

	enum dcc_func_type	func_type[DCC_MAX_LINK_LIST];

	enum dcc_data_sink	*data_sink;

	enum dcc_func_type	*func_type;

	uint32_t		ram_cfg;

	uint32_t		ram_start;

	bool			enable[DCC_MAX_LINK_LIST];

	bool			configured[DCC_MAX_LINK_LIST];

	bool			*enable;

	bool			*configured;

	bool			interrupt_disable;

	bool			memory_map2;

	char			*sram_node;

	struct cdev		sram_dev;

	struct class		*sram_class;

	struct list_head	cfg_head[DCC_MAX_LINK_LIST];

	uint32_t		nr_config[DCC_MAX_LINK_LIST];

	struct list_head	*cfg_head;

	uint32_t		*nr_config;

	uint32_t		nr_link_list;

	uint8_t			curr_list;

	uint8_t			cti_trig;

	uint8_t			loopoff;

};



static uint32_t dcc_offset_conv(struct dcc_drvdata *drvdata, uint32_t off)

{

	if (!drvdata->memory_map2) {

		if ((off & 0x7F) > DCC_MAP2_LEVEL2)

			return (off - DCC_MAP2_OFFSET2);

		else if ((off & 0x7F) > DCC_MAP2_LEVEL1)

			return (off - DCC_MAP2_OFFSET1);

	}

	return (off);

}



static int dcc_sram_writel(struct dcc_drvdata *drvdata,

					uint32_t val, uint32_t off)

{
@@ -176,7 +201,7 @@ static int dcc_read_status(struct dcc_drvdata *drvdata) 
	uint32_t ll_cfg = 0;

	uint32_t tmp_ll_cfg = 0;



	for (curr_list = 0; curr_list < DCC_MAX_LINK_LIST; curr_list++) {

	for (curr_list = 0; curr_list < drvdata->nr_link_list; curr_list++) {

		if (!drvdata->enable[curr_list])

			continue;
@@ -211,7 +236,7 @@ static int dcc_sw_trigger(struct dcc_drvdata *drvdata) 


	mutex_lock(&drvdata->mutex);



	for (curr_list = 0; curr_list < DCC_MAX_LINK_LIST; curr_list++) {

	for (curr_list = 0; curr_list < drvdata->nr_link_list; curr_list++) {

		if (!drvdata->enable[curr_list])

			continue;

		ll_cfg = dcc_readl(drvdata, DCC_LL_CFG(curr_list));
@@ -588,7 +613,7 @@ static int dcc_enable(struct dcc_drvdata *drvdata) 


	memset_io(drvdata->ram_base, 0xDE, drvdata->ram_size);



	for (list = 0; list < DCC_MAX_LINK_LIST; list++) {

	for (list = 0; list < drvdata->nr_link_list; list++) {



		if (dcc_valid_list(drvdata, list))

			continue;
@@ -652,7 +677,7 @@ static void dcc_disable(struct dcc_drvdata *drvdata) 
	if (!dcc_ready(drvdata))

		dev_err(drvdata->dev, "DCC is not ready Disabling DCC...\n");



	for (curr_list = 0; curr_list < DCC_MAX_LINK_LIST; curr_list++) {

	for (curr_list = 0; curr_list < drvdata->nr_link_list; curr_list++) {

		if (!drvdata->enable[curr_list])

			continue;

		dcc_writel(drvdata, 0, DCC_LL_CFG(curr_list));
@@ -672,7 +697,7 @@ static bool is_dcc_enabled(struct dcc_drvdata *drvdata) 
	bool dcc_enable = false;

	int list;



	for (list = 0; list < DCC_MAX_LINK_LIST; list++) {

	for (list = 0; list < drvdata->nr_link_list; list++) {

		if (drvdata->enable[list]) {

			dcc_enable = true;

			break;
@@ -713,7 +738,7 @@ static ssize_t curr_list_store(struct device *dev, 
	if (kstrtoul(buf, 16, &val))

		return -EINVAL;



	if (val >= DCC_MAX_LINK_LIST)

	if (val >= drvdata->nr_link_list)

		return -EINVAL;



	mutex_lock(&drvdata->mutex);
@@ -745,7 +770,7 @@ static ssize_t func_type_show(struct device *dev, 
	ssize_t len = 0;

	unsigned int i;



	for (i = 0; i < DCC_MAX_LINK_LIST; i++)

	for (i = 0; i < drvdata->nr_link_list; i++)

		len += scnprintf(buf + len, PAGE_SIZE - len, "%u :%s\n",

				 i, str_dcc_func_type[drvdata->func_type[i]]);
@@ -766,7 +791,7 @@ static ssize_t func_type_store(struct device *dev, 
		return -EINVAL;



	mutex_lock(&drvdata->mutex);

	if (drvdata->curr_list >= DCC_MAX_LINK_LIST) {

	if (drvdata->curr_list >= drvdata->nr_link_list) {

		dev_err(dev,

			"Select link list to program using curr_list\n");

		ret = -EINVAL;
@@ -803,7 +828,7 @@ static ssize_t data_sink_show(struct device *dev, 
	ssize_t len = 0;

	unsigned int i;



	for (i = 0; i < DCC_MAX_LINK_LIST; i++)

	for (i = 0; i < drvdata->nr_link_list; i++)

		len += scnprintf(buf + len, PAGE_SIZE - len, "%u :%s\n",

				 i, str_dcc_data_sink[drvdata->data_sink[i]]);
@@ -824,7 +849,7 @@ static ssize_t data_sink_store(struct device *dev, 
		return -EINVAL;



	mutex_lock(&drvdata->mutex);

	if (drvdata->curr_list >= DCC_MAX_LINK_LIST) {

	if (drvdata->curr_list >= drvdata->nr_link_list) {

		dev_err(dev,

			"Select link list to program using curr_list\n");

		ret = -EINVAL;
@@ -881,7 +906,7 @@ static ssize_t enable_show(struct device *dev, 
	struct dcc_drvdata *drvdata = dev_get_drvdata(dev);



	mutex_lock(&drvdata->mutex);

	if (drvdata->curr_list >= DCC_MAX_LINK_LIST) {

	if (drvdata->curr_list >= drvdata->nr_link_list) {

		dev_err(dev, "Select link list to program using curr_list\n");

		ret = -EINVAL;

		goto err;
@@ -931,7 +956,7 @@ static ssize_t config_show(struct device *dev, 
	buf[0] = '\0';



	mutex_lock(&drvdata->mutex);

	if (drvdata->curr_list >= DCC_MAX_LINK_LIST) {

	if (drvdata->curr_list >= drvdata->nr_link_list) {

		dev_err(dev, "Select link list to program using curr_list\n");

		count = -EINVAL;

		goto err;
@@ -987,7 +1012,7 @@ static int dcc_config_add(struct dcc_drvdata *drvdata, unsigned int addr, 


	mutex_lock(&drvdata->mutex);



	if (drvdata->curr_list >= DCC_MAX_LINK_LIST) {

	if (drvdata->curr_list >= drvdata->nr_link_list) {

		dev_err(drvdata->dev, "Select link list to program using curr_list\n");

		ret = -EINVAL;

		goto err;
@@ -1112,7 +1137,7 @@ static void dcc_config_reset(struct dcc_drvdata *drvdata) 


	mutex_lock(&drvdata->mutex);



	for (curr_list = 0; curr_list < DCC_MAX_LINK_LIST; curr_list++) {

	for (curr_list = 0; curr_list < drvdata->nr_link_list; curr_list++) {



		list_for_each_entry_safe(entry, temp,

					 &drvdata->cfg_head[curr_list], list) {
@@ -1150,7 +1175,7 @@ static ssize_t crc_error_show(struct device *dev, 
	struct dcc_drvdata *drvdata = dev_get_drvdata(dev);



	mutex_lock(&drvdata->mutex);

	if (drvdata->curr_list >= DCC_MAX_LINK_LIST) {

	if (drvdata->curr_list >= drvdata->nr_link_list) {

		dev_err(dev, "Select link list to program using curr_list\n");

		ret = -EINVAL;

		goto err;
@@ -1178,7 +1203,7 @@ static ssize_t ready_show(struct device *dev, 


	mutex_lock(&drvdata->mutex);



	if (drvdata->curr_list >= DCC_MAX_LINK_LIST) {

	if (drvdata->curr_list >= drvdata->nr_link_list) {

		dev_err(dev, "Select link list to program using curr_list\n");

		ret = -EINVAL;

		goto err;
@@ -1256,7 +1281,7 @@ static ssize_t loop_store(struct device *dev, 
		goto err;

	}



	if (drvdata->curr_list >= DCC_MAX_LINK_LIST) {

	if (drvdata->curr_list >= drvdata->nr_link_list) {

		dev_err(dev, "Select link list to program using curr_list\n");

		ret = -EINVAL;

		goto err;
@@ -1282,7 +1307,7 @@ static int dcc_rd_mod_wr_add(struct dcc_drvdata *drvdata, unsigned int mask, 


	mutex_lock(&drvdata->mutex);



	if (drvdata->curr_list >= DCC_MAX_LINK_LIST) {

	if (drvdata->curr_list >= drvdata->nr_link_list) {

		dev_err(drvdata->dev, "Select link list to program using curr_list\n");

		ret = -EINVAL;

		goto err;
@@ -1375,7 +1400,7 @@ static ssize_t config_write_store(struct device *dev, 
		goto err;

	}



	if (drvdata->curr_list >= DCC_MAX_LINK_LIST) {

	if (drvdata->curr_list >= drvdata->nr_link_list) {

		dev_err(dev, "Select link list to program using curr_list\n");

		ret = -EINVAL;

		goto err;
@@ -1417,7 +1442,7 @@ static ssize_t cti_trig_store(struct device *dev, 


	mutex_lock(&drvdata->mutex);



	if (drvdata->curr_list >= DCC_MAX_LINK_LIST) {

	if (drvdata->curr_list >= drvdata->nr_link_list) {

		dev_err(dev, "Select link list to program using curr_list\n");

		ret = -EINVAL;

		goto out;
@@ -1612,7 +1637,7 @@ static int dcc_dt_parse(struct dcc_drvdata *drvdata, struct device_node *np) 
	if (ret)

		return ret;



	if (curr_link_list >= DCC_MAX_LINK_LIST) {

	if (curr_link_list >= drvdata->nr_link_list) {

		dev_err(drvdata->dev, "List configuration failed.\n");

		return ret;

	}
@@ -1735,11 +1760,48 @@ static int dcc_probe(struct platform_device *pdev) 
	if (ret)

		return -EINVAL;



	if ((dcc_readl(drvdata, DCC_HW_INFO) & 0x3F) == 0x3F) {

		drvdata->memory_map2 = true;

		drvdata->nr_link_list = dcc_readl(drvdata, DCC_LL_NUM_INFO);

		if (drvdata->nr_link_list == 0)

			return  -EINVAL;

	} else {

		drvdata->memory_map2 = false;

		drvdata->nr_link_list = DCC_MAX_LINK_LIST;

	}



	if ((dcc_readl(drvdata, DCC_HW_INFO) & BIT(6)) == BIT(6))

		drvdata->loopoff = DCC_FIX_LOOP_OFFSET;

	else

		drvdata->loopoff = get_bitmask_order((drvdata->ram_size +

				drvdata->ram_offset) / 4 - 1);

	mutex_init(&drvdata->mutex);

	drvdata->data_sink = devm_kzalloc(dev, drvdata->nr_link_list *

			sizeof(enum dcc_data_sink), GFP_KERNEL);

	if (!drvdata->data_sink)

		return -ENOMEM;

	drvdata->func_type = devm_kzalloc(dev, drvdata->nr_link_list *

			sizeof(enum dcc_func_type), GFP_KERNEL);

	if (!drvdata->func_type)

		return -ENOMEM;

	drvdata->enable = devm_kzalloc(dev, drvdata->nr_link_list *

			sizeof(bool), GFP_KERNEL);

	if (!drvdata->enable)

		return -ENOMEM;

	drvdata->configured = devm_kzalloc(dev, drvdata->nr_link_list *

			sizeof(bool), GFP_KERNEL);

	if (!drvdata->configured)

		return -ENOMEM;

	drvdata->nr_config = devm_kzalloc(dev, drvdata->nr_link_list *

			sizeof(uint32_t), GFP_KERNEL);

	if (!drvdata->nr_config)

		return -ENOMEM;

	drvdata->cfg_head = devm_kzalloc(dev, drvdata->nr_link_list *

			sizeof(struct list_head), GFP_KERNEL);

	if (!drvdata->cfg_head)

		return -ENOMEM;



	for (i = 0; i < DCC_MAX_LINK_LIST; i++) {

	for (i = 0; i < drvdata->nr_link_list; i++) {

		INIT_LIST_HEAD(&drvdata->cfg_head[i]);

		drvdata->nr_config[i] = 0;

	}