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drm/komeda: Add debugfs node "register" for register dump 

Add a debugfs node "register" and entry function dump_register to
dev/pipeline/component to register dump, then user can read
"/sys/kernel/debug/komeda/register" to get the register values via these
chip function.

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
[Added the d71_layer_dump() function that was in a previous commit]
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
This commit is contained in:
james qian wang (Arm Technology China) 2019-01-22 09:24:34 +00:00 committed by Liviu Dudau
parent 0dac37bf1c
commit 7d3cfb70a6
5 changed files with 285 additions and 0 deletions
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205
drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
View File

@ -71,6 +71,42 @@ static u32 get_valid_inputs(struct block_header *blk)
return valid_inputs;
}
static void get_values_from_reg(void __iomem *reg, u32 offset,
u32 count, u32 *val)
{
u32 i, addr;
for (i = 0; i < count; i++) {
addr = offset + (i << 2);
/* 0xA4 is WO register */
if (addr != 0xA4)
val[i] = malidp_read32(reg, addr);
else
val[i] = 0xDEADDEAD;
}
}
static void dump_block_header(struct seq_file *sf, void __iomem *reg)
{
struct block_header hdr;
u32 i, n_input, n_output;
d71_read_block_header(reg, &hdr);
seq_printf(sf, "BLOCK_INFO:\t\t0x%X\n", hdr.block_info);
seq_printf(sf, "PIPELINE_INFO:\t\t0x%X\n", hdr.pipeline_info);
n_output = PIPELINE_INFO_N_OUTPUTS(hdr.pipeline_info);
n_input = PIPELINE_INFO_N_VALID_INPUTS(hdr.pipeline_info);
for (i = 0; i < n_input; i++)
seq_printf(sf, "VALID_INPUT_ID%u:\t0x%X\n",
i, hdr.input_ids[i]);
for (i = 0; i < n_output; i++)
seq_printf(sf, "OUTPUT_ID%u:\t\t0x%X\n",
i, hdr.output_ids[i]);
}
static u32 to_rot_ctrl(u32 rot)
{
u32 lr_ctrl = 0;
@ -143,9 +179,76 @@ static void d71_layer_update(struct komeda_component *c,
malidp_write32_mask(reg, BLK_CONTROL, ctrl_mask, ctrl);
}
static void d71_layer_dump(struct komeda_component *c, struct seq_file *sf)
{
u32 v[15], i;
bool rich, rgb2rgb;
char *prefix;
get_values_from_reg(c->reg, LAYER_INFO, 1, &v[14]);
if (v[14] & 0x1) {
rich = true;
prefix = "LR_";
} else {
rich = false;
prefix = "LS_";
}
rgb2rgb = !!(v[14] & L_INFO_CM);
dump_block_header(sf, c->reg);
seq_printf(sf, "%sLAYER_INFO:\t\t0x%X\n", prefix, v[14]);
get_values_from_reg(c->reg, 0xD0, 1, v);
seq_printf(sf, "%sCONTROL:\t\t0x%X\n", prefix, v[0]);
if (rich) {
get_values_from_reg(c->reg, 0xD4, 1, v);
seq_printf(sf, "LR_RICH_CONTROL:\t0x%X\n", v[0]);
}
get_values_from_reg(c->reg, 0xD8, 4, v);
seq_printf(sf, "%sFORMAT:\t\t0x%X\n", prefix, v[0]);
seq_printf(sf, "%sIT_COEFFTAB:\t\t0x%X\n", prefix, v[1]);
seq_printf(sf, "%sIN_SIZE:\t\t0x%X\n", prefix, v[2]);
seq_printf(sf, "%sPALPHA:\t\t0x%X\n", prefix, v[3]);
get_values_from_reg(c->reg, 0x100, 3, v);
seq_printf(sf, "%sP0_PTR_LOW:\t\t0x%X\n", prefix, v[0]);
seq_printf(sf, "%sP0_PTR_HIGH:\t\t0x%X\n", prefix, v[1]);
seq_printf(sf, "%sP0_STRIDE:\t\t0x%X\n", prefix, v[2]);
get_values_from_reg(c->reg, 0x110, 2, v);
seq_printf(sf, "%sP1_PTR_LOW:\t\t0x%X\n", prefix, v[0]);
seq_printf(sf, "%sP1_PTR_HIGH:\t\t0x%X\n", prefix, v[1]);
if (rich) {
get_values_from_reg(c->reg, 0x118, 1, v);
seq_printf(sf, "LR_P1_STRIDE:\t\t0x%X\n", v[0]);
get_values_from_reg(c->reg, 0x120, 2, v);
seq_printf(sf, "LR_P2_PTR_LOW:\t\t0x%X\n", v[0]);
seq_printf(sf, "LR_P2_PTR_HIGH:\t\t0x%X\n", v[1]);
get_values_from_reg(c->reg, 0x130, 12, v);
for (i = 0; i < 12; i++)
seq_printf(sf, "LR_YUV_RGB_COEFF%u:\t0x%X\n", i, v[i]);
}
if (rgb2rgb) {
get_values_from_reg(c->reg, LAYER_RGB_RGB_COEFF0, 12, v);
for (i = 0; i < 12; i++)
seq_printf(sf, "LS_RGB_RGB_COEFF%u:\t0x%X\n", i, v[i]);
}
get_values_from_reg(c->reg, 0x160, 3, v);
seq_printf(sf, "%sAD_CONTROL:\t\t0x%X\n", prefix, v[0]);
seq_printf(sf, "%sAD_H_CROP:\t\t0x%X\n", prefix, v[1]);
seq_printf(sf, "%sAD_V_CROP:\t\t0x%X\n", prefix, v[2]);
}
static struct komeda_component_funcs d71_layer_funcs = {
.update = d71_layer_update,
.disable = d71_layer_disable,
.dump_register = d71_layer_dump,
};
static int d71_layer_init(struct d71_dev *d71,
@ -252,9 +355,46 @@ static void d71_compiz_update(struct komeda_component *c,
malidp_write32(reg, BLK_SIZE, HV_SIZE(st->hsize, st->vsize));
}
static void d71_compiz_dump(struct komeda_component *c, struct seq_file *sf)
{
u32 v[8], i;
dump_block_header(sf, c->reg);
get_values_from_reg(c->reg, 0x80, 5, v);
for (i = 0; i < 5; i++)
seq_printf(sf, "CU_INPUT_ID%u:\t\t0x%X\n", i, v[i]);
get_values_from_reg(c->reg, 0xA0, 5, v);
seq_printf(sf, "CU_IRQ_RAW_STATUS:\t0x%X\n", v[0]);
seq_printf(sf, "CU_IRQ_CLEAR:\t\t0x%X\n", v[1]);
seq_printf(sf, "CU_IRQ_MASK:\t\t0x%X\n", v[2]);
seq_printf(sf, "CU_IRQ_STATUS:\t\t0x%X\n", v[3]);
seq_printf(sf, "CU_STATUS:\t\t0x%X\n", v[4]);
get_values_from_reg(c->reg, 0xD0, 2, v);
seq_printf(sf, "CU_CONTROL:\t\t0x%X\n", v[0]);
seq_printf(sf, "CU_SIZE:\t\t0x%X\n", v[1]);
get_values_from_reg(c->reg, 0xDC, 1, v);
seq_printf(sf, "CU_BG_COLOR:\t\t0x%X\n", v[0]);
for (i = 0, v[4] = 0xE0; i < 5; i++, v[4] += 0x10) {
get_values_from_reg(c->reg, v[4], 3, v);
seq_printf(sf, "CU_INPUT%u_SIZE:\t\t0x%X\n", i, v[0]);
seq_printf(sf, "CU_INPUT%u_OFFSET:\t0x%X\n", i, v[1]);
seq_printf(sf, "CU_INPUT%u_CONTROL:\t0x%X\n", i, v[2]);
}
get_values_from_reg(c->reg, 0x130, 2, v);
seq_printf(sf, "CU_USER_LOW:\t\t0x%X\n", v[0]);
seq_printf(sf, "CU_USER_HIGH:\t\t0x%X\n", v[1]);
}
struct komeda_component_funcs d71_compiz_funcs = {
.update = d71_compiz_update,
.disable = d71_component_disable,
.dump_register = d71_compiz_dump,
};
static int d71_compiz_init(struct d71_dev *d71,
@ -300,9 +440,37 @@ static void d71_improc_update(struct komeda_component *c,
malidp_write32(reg, BLK_SIZE, HV_SIZE(st->hsize, st->vsize));
}
static void d71_improc_dump(struct komeda_component *c, struct seq_file *sf)
{
u32 v[12], i;
dump_block_header(sf, c->reg);
get_values_from_reg(c->reg, 0x80, 2, v);
seq_printf(sf, "IPS_INPUT_ID0:\t\t0x%X\n", v[0]);
seq_printf(sf, "IPS_INPUT_ID1:\t\t0x%X\n", v[1]);
get_values_from_reg(c->reg, 0xC0, 1, v);
seq_printf(sf, "IPS_INFO:\t\t0x%X\n", v[0]);
get_values_from_reg(c->reg, 0xD0, 3, v);
seq_printf(sf, "IPS_CONTROL:\t\t0x%X\n", v[0]);
seq_printf(sf, "IPS_SIZE:\t\t0x%X\n", v[1]);
seq_printf(sf, "IPS_DEPTH:\t\t0x%X\n", v[2]);
get_values_from_reg(c->reg, 0x130, 12, v);
for (i = 0; i < 12; i++)
seq_printf(sf, "IPS_RGB_RGB_COEFF%u:\t0x%X\n", i, v[i]);
get_values_from_reg(c->reg, 0x170, 12, v);
for (i = 0; i < 12; i++)
seq_printf(sf, "IPS_RGB_YUV_COEFF%u:\t0x%X\n", i, v[i]);
}
struct komeda_component_funcs d71_improc_funcs = {
.update = d71_improc_update,
.disable = d71_component_disable,
.dump_register = d71_improc_dump,
};
static int d71_improc_init(struct d71_dev *d71,
@ -375,9 +543,46 @@ static void d71_timing_ctrlr_update(struct komeda_component *c,
malidp_write32(reg, BLK_CONTROL, value);
}
void d71_timing_ctrlr_dump(struct komeda_component *c, struct seq_file *sf)
{
u32 v[8], i;
dump_block_header(sf, c->reg);
get_values_from_reg(c->reg, 0xC0, 1, v);
seq_printf(sf, "BS_INFO:\t\t0x%X\n", v[0]);
get_values_from_reg(c->reg, 0xD0, 8, v);
seq_printf(sf, "BS_CONTROL:\t\t0x%X\n", v[0]);
seq_printf(sf, "BS_PROG_LINE:\t\t0x%X\n", v[1]);
seq_printf(sf, "BS_PREFETCH_LINE:\t0x%X\n", v[2]);
seq_printf(sf, "BS_BG_COLOR:\t\t0x%X\n", v[3]);
seq_printf(sf, "BS_ACTIVESIZE:\t\t0x%X\n", v[4]);
seq_printf(sf, "BS_HINTERVALS:\t\t0x%X\n", v[5]);
seq_printf(sf, "BS_VINTERVALS:\t\t0x%X\n", v[6]);
seq_printf(sf, "BS_SYNC:\t\t0x%X\n", v[7]);
get_values_from_reg(c->reg, 0x100, 3, v);
seq_printf(sf, "BS_DRIFT_TO:\t\t0x%X\n", v[0]);
seq_printf(sf, "BS_FRAME_TO:\t\t0x%X\n", v[1]);
seq_printf(sf, "BS_TE_TO:\t\t0x%X\n", v[2]);
get_values_from_reg(c->reg, 0x110, 3, v);
for (i = 0; i < 3; i++)
seq_printf(sf, "BS_T%u_INTERVAL:\t\t0x%X\n", i, v[i]);
get_values_from_reg(c->reg, 0x120, 5, v);
for (i = 0; i < 2; i++) {
seq_printf(sf, "BS_CRC%u_LOW:\t\t0x%X\n", i, v[i << 1]);
seq_printf(sf, "BS_CRC%u_HIGH:\t\t0x%X\n", i, v[(i << 1) + 1]);
}
seq_printf(sf, "BS_USER:\t\t0x%X\n", v[4]);
}
struct komeda_component_funcs d71_timing_ctrlr_funcs = {
.update = d71_timing_ctrlr_update,
.disable = d71_timing_ctrlr_disable,
.dump_register = d71_timing_ctrlr_dump,
};
static int d71_timing_ctrlr_init(struct d71_dev *d71,

52
drivers/gpu/drm/arm/display/komeda/komeda_dev.c
View File

@ -8,11 +8,55 @@
#include <linux/of_device.h>
#include <linux/of_graph.h>
#include <linux/platform_device.h>
#ifdef CONFIG_DEBUG_FS
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#endif
#include <drm/drm_print.h>
#include "komeda_dev.h"
static int komeda_register_show(struct seq_file *sf, void *x)
{
struct komeda_dev *mdev = sf->private;
int i;
if (mdev->funcs->dump_register)
mdev->funcs->dump_register(mdev, sf);
for (i = 0; i < mdev->n_pipelines; i++)
komeda_pipeline_dump_register(mdev->pipelines[i], sf);
return 0;
}
static int komeda_register_open(struct inode *inode, struct file *filp)
{
return single_open(filp, komeda_register_show, inode->i_private);
}
static const struct file_operations komeda_register_fops = {
.owner = THIS_MODULE,
.open = komeda_register_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static void komeda_debugfs_init(struct komeda_dev *mdev)
{
if (!debugfs_initialized())
return;
mdev->debugfs_root = debugfs_create_dir("komeda", NULL);
if (IS_ERR_OR_NULL(mdev->debugfs_root))
return;
debugfs_create_file("register", 0444, mdev->debugfs_root,
mdev, &komeda_register_fops);
}
static int komeda_parse_pipe_dt(struct komeda_dev *mdev, struct device_node *np)
{
struct komeda_pipeline *pipe;
@ -159,6 +203,10 @@ struct komeda_dev *komeda_dev_create(struct device *dev)
goto err_cleanup;
}
#ifdef CONFIG_DEBUG_FS
komeda_debugfs_init(mdev);
#endif
return mdev;
err_cleanup:
@ -172,6 +220,10 @@ void komeda_dev_destroy(struct komeda_dev *mdev)
struct komeda_dev_funcs *funcs = mdev->funcs;
int i;
#ifdef CONFIG_DEBUG_FS
debugfs_remove_recursive(mdev->debugfs_root);
#endif
for (i = 0; i < mdev->n_pipelines; i++) {
komeda_pipeline_destroy(mdev, mdev->pipelines[i]);
mdev->pipelines[i] = NULL;

5
drivers/gpu/drm/arm/display/komeda/komeda_dev.h
View File

@ -103,6 +103,9 @@ struct komeda_dev_funcs {
int (*enable_irq)(struct komeda_dev *mdev);
/** @disable_irq: disable irq */
int (*disable_irq)(struct komeda_dev *mdev);
/** @dump_register: Optional, dump registers to seq_file */
void (*dump_register)(struct komeda_dev *mdev, struct seq_file *seq);
};
/**
@ -139,6 +142,8 @@ struct komeda_dev {
* destroyed by &komeda_dev_funcs.cleanup()
*/
void *chip_data;
struct dentry *debugfs_root;
};
static inline bool

20
drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c
View File

@ -275,3 +275,23 @@ int komeda_assemble_pipelines(struct komeda_dev *mdev)
return 0;
}
void komeda_pipeline_dump_register(struct komeda_pipeline *pipe,
struct seq_file *sf)
{
struct komeda_component *c;
u32 id;
seq_printf(sf, "\n======== Pipeline-%d ==========\n", pipe->id);
if (pipe->funcs && pipe->funcs->dump_register)
pipe->funcs->dump_register(pipe, sf);
dp_for_each_set_bit(id, pipe->avail_comps) {
c = komeda_pipeline_get_component(pipe, id);
seq_printf(sf, "\n------%s------\n", c->name);
if (c->funcs->dump_register)
c->funcs->dump_register(c, sf);
}
}

3
drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
View File

@ -367,6 +367,9 @@ int komeda_assemble_pipelines(struct komeda_dev *mdev);
struct komeda_component *
komeda_pipeline_get_component(struct komeda_pipeline *pipe, int id);
void komeda_pipeline_dump_register(struct komeda_pipeline *pipe,
struct seq_file *sf);
/* component APIs */
struct komeda_component *
komeda_component_add(struct komeda_pipeline *pipe,