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Commit 9a3a5a85 authored by Martin K. Petersen's avatar Martin K. Petersen
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Merge patch series "scsi: ufs: ufs-qcom: Debug clean ups" 

Andrew Halaney <ahalaney@redhat.com> says:

This patch series attempts to clean up some debug code paths in the
ufs-qcom driver.

Link: https://lore.kernel.org/r/20221201230810.1019834-1-ahalaney@redhat.comSigned-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parents c1635fbf 1026f7d3
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Showing with 48 additions and 98 deletions
drivers/ufs/host/ufs-qcom.c
View file @ 9a3a5a85
......@@ -22,9 +22,6 @@
#include <ufs/ufshci.h>
#include <ufs/ufs_quirks.h>
#define UFS_QCOM_DEFAULT_DBG_PRINT_EN \
(UFS_QCOM_DBG_PRINT_REGS_EN | UFS_QCOM_DBG_PRINT_TEST_BUS_EN)
enum {
TSTBUS_UAWM,
TSTBUS_UARM,
......@@ -52,12 +49,6 @@ static struct ufs_qcom_host *rcdev_to_ufs_host(struct reset_controller_dev *rcd)
return container_of(rcd, struct ufs_qcom_host, rcdev);
}
static void ufs_qcom_dump_regs_wrapper(struct ufs_hba *hba, int offset, int len,
const char *prefix, void *priv)
{
ufshcd_dump_regs(hba, offset, len * 4, prefix);
}
static int ufs_qcom_host_clk_get(struct device *dev,
const char *name, struct clk **clk_out, bool optional)
{
......@@ -689,12 +680,6 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
struct ufs_dev_params ufs_qcom_cap;
int ret = 0;
if (!dev_req_params) {
pr_err("%s: incoming dev_req_params is NULL\n", __func__);
ret = -EINVAL;
goto out;
}
switch (status) {
case PRE_CHANGE:
ufshcd_init_pwr_dev_param(&ufs_qcom_cap);
......@@ -718,7 +703,7 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
dev_max_params,
dev_req_params);
if (ret) {
pr_err("%s: failed to determine capabilities\n",
dev_err(hba->dev, "%s: failed to determine capabilities\n",
__func__);
goto out;
}
......@@ -1046,7 +1031,6 @@ static int ufs_qcom_init(struct ufs_hba *hba)
if (hba->dev->id < MAX_UFS_QCOM_HOSTS)
ufs_qcom_hosts[hba->dev->id] = host;
host->dbg_print_en |= UFS_QCOM_DEFAULT_DBG_PRINT_EN;
ufs_qcom_get_default_testbus_cfg(host);
err = ufs_qcom_testbus_config(host);
if (err) {
......@@ -1195,77 +1179,11 @@ static int ufs_qcom_clk_scale_notify(struct ufs_hba *hba,
return err;
}
static void ufs_qcom_print_hw_debug_reg_all(struct ufs_hba *hba,
void *priv, void (*print_fn)(struct ufs_hba *hba,
int offset, int num_regs, const char *str, void *priv))
{
u32 reg;
struct ufs_qcom_host *host;
if (unlikely(!hba)) {
pr_err("%s: hba is NULL\n", __func__);
return;
}
if (unlikely(!print_fn)) {
dev_err(hba->dev, "%s: print_fn is NULL\n", __func__);
return;
}
host = ufshcd_get_variant(hba);
if (!(host->dbg_print_en & UFS_QCOM_DBG_PRINT_REGS_EN))
return;
reg = ufs_qcom_get_debug_reg_offset(host, UFS_UFS_DBG_RD_REG_OCSC);
print_fn(hba, reg, 44, "UFS_UFS_DBG_RD_REG_OCSC ", priv);
reg = ufshcd_readl(hba, REG_UFS_CFG1);
reg |= UTP_DBG_RAMS_EN;
ufshcd_writel(hba, reg, REG_UFS_CFG1);
reg = ufs_qcom_get_debug_reg_offset(host, UFS_UFS_DBG_RD_EDTL_RAM);
print_fn(hba, reg, 32, "UFS_UFS_DBG_RD_EDTL_RAM ", priv);
reg = ufs_qcom_get_debug_reg_offset(host, UFS_UFS_DBG_RD_DESC_RAM);
print_fn(hba, reg, 128, "UFS_UFS_DBG_RD_DESC_RAM ", priv);
reg = ufs_qcom_get_debug_reg_offset(host, UFS_UFS_DBG_RD_PRDT_RAM);
print_fn(hba, reg, 64, "UFS_UFS_DBG_RD_PRDT_RAM ", priv);
/* clear bit 17 - UTP_DBG_RAMS_EN */
ufshcd_rmwl(hba, UTP_DBG_RAMS_EN, 0, REG_UFS_CFG1);
reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_UAWM);
print_fn(hba, reg, 4, "UFS_DBG_RD_REG_UAWM ", priv);
reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_UARM);
print_fn(hba, reg, 4, "UFS_DBG_RD_REG_UARM ", priv);
reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_TXUC);
print_fn(hba, reg, 48, "UFS_DBG_RD_REG_TXUC ", priv);
reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_RXUC);
print_fn(hba, reg, 27, "UFS_DBG_RD_REG_RXUC ", priv);
reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_DFC);
print_fn(hba, reg, 19, "UFS_DBG_RD_REG_DFC ", priv);
reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_TRLUT);
print_fn(hba, reg, 34, "UFS_DBG_RD_REG_TRLUT ", priv);
reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_TMRLUT);
print_fn(hba, reg, 9, "UFS_DBG_RD_REG_TMRLUT ", priv);
}
static void ufs_qcom_enable_test_bus(struct ufs_qcom_host *host)
{
if (host->dbg_print_en & UFS_QCOM_DBG_PRINT_TEST_BUS_EN) {
ufshcd_rmwl(host->hba, UFS_REG_TEST_BUS_EN,
UFS_REG_TEST_BUS_EN, REG_UFS_CFG1);
ufshcd_rmwl(host->hba, TEST_BUS_EN, TEST_BUS_EN, REG_UFS_CFG1);
} else {
ufshcd_rmwl(host->hba, UFS_REG_TEST_BUS_EN, 0, REG_UFS_CFG1);
ufshcd_rmwl(host->hba, TEST_BUS_EN, 0, REG_UFS_CFG1);
}
ufshcd_rmwl(host->hba, UFS_REG_TEST_BUS_EN,
UFS_REG_TEST_BUS_EN, REG_UFS_CFG1);
ufshcd_rmwl(host->hba, TEST_BUS_EN, TEST_BUS_EN, REG_UFS_CFG1);
}
static void ufs_qcom_get_default_testbus_cfg(struct ufs_qcom_host *host)
......@@ -1374,10 +1292,53 @@ int ufs_qcom_testbus_config(struct ufs_qcom_host *host)
static void ufs_qcom_dump_dbg_regs(struct ufs_hba *hba)
{
u32 reg;
struct ufs_qcom_host *host;
host = ufshcd_get_variant(hba);
ufshcd_dump_regs(hba, REG_UFS_SYS1CLK_1US, 16 * 4,
"HCI Vendor Specific Registers ");
ufs_qcom_print_hw_debug_reg_all(hba, NULL, ufs_qcom_dump_regs_wrapper);
reg = ufs_qcom_get_debug_reg_offset(host, UFS_UFS_DBG_RD_REG_OCSC);
ufshcd_dump_regs(hba, reg, 44 * 4, "UFS_UFS_DBG_RD_REG_OCSC ");
reg = ufshcd_readl(hba, REG_UFS_CFG1);
reg |= UTP_DBG_RAMS_EN;
ufshcd_writel(hba, reg, REG_UFS_CFG1);
reg = ufs_qcom_get_debug_reg_offset(host, UFS_UFS_DBG_RD_EDTL_RAM);
ufshcd_dump_regs(hba, reg, 32 * 4, "UFS_UFS_DBG_RD_EDTL_RAM ");
reg = ufs_qcom_get_debug_reg_offset(host, UFS_UFS_DBG_RD_DESC_RAM);
ufshcd_dump_regs(hba, reg, 128 * 4, "UFS_UFS_DBG_RD_DESC_RAM ");
reg = ufs_qcom_get_debug_reg_offset(host, UFS_UFS_DBG_RD_PRDT_RAM);
ufshcd_dump_regs(hba, reg, 64 * 4, "UFS_UFS_DBG_RD_PRDT_RAM ");
/* clear bit 17 - UTP_DBG_RAMS_EN */
ufshcd_rmwl(hba, UTP_DBG_RAMS_EN, 0, REG_UFS_CFG1);
reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_UAWM);
ufshcd_dump_regs(hba, reg, 4 * 4, "UFS_DBG_RD_REG_UAWM ");
reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_UARM);
ufshcd_dump_regs(hba, reg, 4 * 4, "UFS_DBG_RD_REG_UARM ");
reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_TXUC);
ufshcd_dump_regs(hba, reg, 48 * 4, "UFS_DBG_RD_REG_TXUC ");
reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_RXUC);
ufshcd_dump_regs(hba, reg, 27 * 4, "UFS_DBG_RD_REG_RXUC ");
reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_DFC);
ufshcd_dump_regs(hba, reg, 19 * 4, "UFS_DBG_RD_REG_DFC ");
reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_TRLUT);
ufshcd_dump_regs(hba, reg, 34 * 4, "UFS_DBG_RD_REG_TRLUT ");
reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_TMRLUT);
ufshcd_dump_regs(hba, reg, 9 * 4, "UFS_DBG_RD_REG_TMRLUT ");
}
/**
......
drivers/ufs/host/ufs-qcom.h
View file @ 9a3a5a85
......@@ -113,15 +113,6 @@ enum {
MASK_CLK_NS_REG = 0xFFFC00,
};
/* QCOM UFS debug print bit mask */
#define UFS_QCOM_DBG_PRINT_REGS_EN BIT(0)
#define UFS_QCOM_DBG_PRINT_ICE_REGS_EN BIT(1)
#define UFS_QCOM_DBG_PRINT_TEST_BUS_EN BIT(2)
#define UFS_QCOM_DBG_PRINT_ALL \
(UFS_QCOM_DBG_PRINT_REGS_EN | UFS_QCOM_DBG_PRINT_ICE_REGS_EN | \
UFS_QCOM_DBG_PRINT_TEST_BUS_EN)
/* QUniPro Vendor specific attributes */
#define PA_VS_CONFIG_REG1 0x9000
#define DME_VS_CORE_CLK_CTRL 0xD002
......@@ -212,8 +203,6 @@ struct ufs_qcom_host {
u32 dev_ref_clk_en_mask;
/* Bitmask for enabling debug prints */
u32 dbg_print_en;
struct ufs_qcom_testbus testbus;
/* Reset control of HCI */
......
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