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soc: rockchip: decompress: add start_decom node for test

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Take RK3588 as an example to show how to test decompress:

echo mode > /sys/devices/platform/fea80000.decompress/start_decom

“mode” means the compressed package format has following three types:

0 - LZ4
1 - GZIP
2 - ZLIB

Change-Id: Ibd264dcce964c142abb603c1a5e8ca4c14e9fe1e
Signed-off-by: Simon Xue <xxm@rock-chips.com>
This commit is contained in:
Simon Xue
2025-02-25 11:59:02 +08:00
committed by Tao Huang
parent 7c90786eef
commit 4c2e3dc57b
2 changed files with 61 additions and 0 deletions
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6
drivers/soc/rockchip/Kconfig
View File

@@ -72,6 +72,12 @@ config ROCKCHIP_HW_DECOMPRESS
This driver support Decompress IP built-in Rockchip SoC, support
LZ4, GZIP, ZLIB.
config ROCKCHIP_HW_DECOMPRESS_TEST
bool "Rockchip Hw-Decompress test"
depends on ROCKCHIP_HW_DECOMPRESS
help
Say yes here to enable decompress test
config ROCKCHIP_HW_DECOMPRESS_USER
tristate "Rockchip HardWare Decompress User Interface Support"
default n

55
drivers/soc/rockchip/rockchip_decompress.c
View File

@@ -244,7 +244,9 @@ static irqreturn_t rk_decom_irq_handler(int irq, void *priv)
g_decom_noblocking = false;
wake_up(&g_decom_wait);
} else {
#ifndef CONFIG_ROCKCHIP_HW_DECOMPRESS_TEST
writel(DECOM_ENABLE, rk_dec->regs + DECOM_ENR);
#endif
}
}
}
@@ -254,6 +256,7 @@ static irqreturn_t rk_decom_irq_handler(int irq, void *priv)
static irqreturn_t rk_decom_irq_thread(int irq, void *priv)
{
#ifndef CONFIG_ROCKCHIP_HW_DECOMPRESS_TEST
struct rk_decom *rk_dec = priv;
if (g_decom_complete) {
@@ -273,9 +276,54 @@ static irqreturn_t rk_decom_irq_thread(int irq, void *priv)
clk_bulk_disable_unprepare(rk_dec->num_clocks, rk_dec->clocks);
}
#endif
return IRQ_HANDLED;
}
#ifdef CONFIG_ROCKCHIP_HW_DECOMPRESS_TEST
static ssize_t start_decom_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
u32 mode = 0;
phys_addr_t src, dst;
int ret;
struct rk_decom *rk_dec = dev_get_drvdata(dev);
src = rk_dec->mem_start;
dst = rk_dec->mem_start + rk_dec->mem_size / 2;
if (src == 0x0 || dst == 0x0)
return -EINVAL;
ret = kstrtou32(buf, 10, &mode);
if (ret)
return ret;
if (mode != LZ4_MOD && mode != GZIP_MOD && mode != ZLIB_MOD)
return -EINVAL;
dev_info(dev, "%s,%d, src = %pa, dst = %pa, mode = %d\n",
__func__, __LINE__, &src, &dst, mode);
ret = rk_decom_start(mode, src, dst, 0x80000000);
if (ret)
pr_info("%s, user decompress error\n", __func__);
return size;
}
static DEVICE_ATTR_WO(start_decom);
static struct attribute *decom_attrs[] = {
&dev_attr_start_decom.attr,
NULL
};
static const struct attribute_group decom_attr_group = {
.attrs = decom_attrs,
};
#endif
static int __init rockchip_decom_probe(struct platform_device *pdev)
{
struct rk_decom *rk_dec;
@@ -346,6 +394,13 @@ static int __init rockchip_decom_probe(struct platform_device *pdev)
goto disable_clk;
}
#ifdef CONFIG_ROCKCHIP_HW_DECOMPRESS_TEST
ret = sysfs_create_group(&pdev->dev.kobj, &decom_attr_group);
if (ret) {
dev_err(dev, "SysFS group creation failed\n");
return ret;
}
#endif
g_decom = rk_dec;
wake_up(&decom_init_done);