samsung-sm8650/android_kernel_samsung_sm8650-modules
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disp: msm: add dp register & debugbus dump support

소스 검색 
Add support to the dump the DP register space and debugbus information.

Change-Id: I903471b07fdd1926b0fc505a980b2a5048387b69
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>
This commit is contained in:
Veera Sundaram Sankaran
2021-02-28 22:30:16 -08:00
부모 6389071ca8
커밋 84ec84696e
2개의 변경된 파일과 103개의 추가작업 그리고 7개의 파일을 삭제
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82
msm/sde_dbg.c
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@@ -28,6 +28,7 @@
#define DEFAULT_DBGBUS_DSI SDE_DBG_DUMP_IN_MEM
#define DEFAULT_DBGBUS_RSC SDE_DBG_DUMP_IN_MEM
#define DEFAULT_DBGBUS_LUTDMA SDE_DBG_DUMP_IN_MEM
#define DEFAULT_DBGBUS_DP SDE_DBG_DUMP_IN_MEM
#define DEFAULT_BASE_REG_CNT DEFAULT_MDSS_HW_BLOCK_SIZE
#define GROUP_BYTES 4
#define ROW_BYTES 16
@@ -39,6 +40,7 @@
#define DBGBUS_NAME_DSI "dsi"
#define DBGBUS_NAME_RSC "sde_rsc_wrapper"
#define DBGBUS_NAME_LUTDMA "reg_dma"
#define DBGBUS_NAME_DP "dp_ahb"
/* offsets from LUTDMA top address for the debug buses */
#define LUTDMA_0_DEBUG_BUS_CTRL 0x1e8
@@ -80,6 +82,10 @@
#define RSC_WRAPPER_DEBUG_BUS 0x010
#define RSC_WRAPPER_DEBUG_BUS_DATA 0x014
/* offsets from DP AHB base address for DP debug bus */
#define DPTX_DEBUG_BUS_CTRL 0x88
#define DPTX_DEBUG_BUS_OUTPUT 0x8c
/* print debug ranges in groups of 4 u32s */
#define REG_DUMP_ALIGN 16
@@ -245,6 +251,7 @@ struct sde_dbg_regbuf {
* @dbgbus_dsi: debug bus structure for the dsi
* @dbgbus_rsc: debug bus structure for rscc
* @dbgbus_lutdma: debug bus structure for the lutdma hw
* @dbgbus_dp: debug bus structure for dp
* @dump_all: dump all entries in register dump
* @dump_secure: dump entries excluding few as it is in secure-session
* @regbuf: buffer data to track the register dumping in hw recovery
@@ -270,6 +277,7 @@ static struct sde_dbg_base {
struct sde_dbg_sde_debug_bus dbgbus_dsi;
struct sde_dbg_sde_debug_bus dbgbus_rsc;
struct sde_dbg_sde_debug_bus dbgbus_lutdma;
struct sde_dbg_sde_debug_bus dbgbus_dp;
bool dump_all;
bool dump_secure;
u32 debugfs_ctrl;
@@ -425,6 +433,10 @@ static struct sde_debug_bus_entry dbg_bus_lutdma[] = {
{ LUTDMA_1_DEBUG_BUS_CTRL, LUTDMA_1_DEBUG_BUS_STATUS, 0, 1, 8960, 1 },
};
static struct sde_debug_bus_entry dp_dbg_bus[] = {
{DPTX_DEBUG_BUS_CTRL, DPTX_DEBUG_BUS_OUTPUT, 0, 1, 0, 145},
};
/**
* _sde_power_check - check if power needs to enabled
* @dump_mode: to check if power need to be enabled
@@ -699,6 +711,14 @@ static void _sde_dbg_cmn_clear_test_point(void __iomem *mem_base, u32 wr_addr)
writel_relaxed(0, mem_base + wr_addr);
}
static u32 _sde_dbg_dp_read_test_point(void __iomem *mem_base, u32 wr_addr, u32 rd_addr,
u32 block_id, u32 test_id)
{
u32 val = (test_id << 4) | BIT(0);
return _sde_dbg_cmn_read_test_point(mem_base, wr_addr, rd_addr, val);
}
static u32 _sde_dbg_rsc_read_test_point(void __iomem *mem_base, u32 wr_addr, u32 rd_addr,
u32 block_id, u32 test_id)
{
@@ -988,13 +1008,13 @@ static void _sde_dbg_dump_dsi_dbg_bus(struct sde_dbg_sde_debug_bus *bus)
* @dump_dbgbus_sde: whether to dump the sde debug bus
* @dump_dbgbus_vbif_rt: whether to dump the vbif rt debug bus
* @dump_dbgbus_dsi: whether to dump the dsi debug bus
* @dump_dbgbus_dp: whether to dump the dp debug bus
* @dump_all: dump evtlog + regs
* @dump_secure: flag to indicate dumping in secure-session
*/
static void _sde_dump_array(struct sde_dbg_reg_base *blk_arr[],
u32 len, bool do_panic, const char *name, bool dump_dbgbus_sde,
bool dump_dbgbus_vbif_rt, bool dump_dbgbus_dsi, bool dump_all,
bool dump_secure)
u32 len, bool do_panic, const char *name, bool dump_dbgbus_sde, bool dump_dbgbus_vbif_rt,
bool dump_dbgbus_dsi, bool dump_dbgbus_dp, bool dump_all, bool dump_secure)
{
int i, rc;
ktime_t start, end;
@@ -1036,6 +1056,9 @@ static void _sde_dump_array(struct sde_dbg_reg_base *blk_arr[],
if (dump_dbgbus_dsi)
_sde_dbg_dump_dsi_dbg_bus(&sde_dbg_base.dbgbus_dsi);
if (dump_dbgbus_dp)
_sde_dbg_dump_sde_dbg_bus(&sde_dbg_base.dbgbus_dp);
end = ktime_get();
dev_info(sde_dbg_base.dev,
"debug-bus logging time start_us:%llu, end_us:%llu , duration_us:%llu\n",
@@ -1062,6 +1085,7 @@ static void _sde_dump_work(struct work_struct *work)
sde_dbg_base.dbgbus_sde.cmn.include_in_deferred_work,
sde_dbg_base.dbgbus_vbif_rt.cmn.include_in_deferred_work,
sde_dbg_base.dbgbus_dsi.cmn.include_in_deferred_work,
sde_dbg_base.dbgbus_dp.cmn.include_in_deferred_work,
sde_dbg_base.dump_all, sde_dbg_base.dump_secure);
}
@@ -1072,6 +1096,7 @@ void sde_dbg_dump(enum sde_dbg_dump_context dump_mode, const char *name, ...)
bool dump_dbgbus_sde = false;
bool dump_dbgbus_vbif_rt = false;
bool dump_dbgbus_dsi = false;
bool dump_dbgbus_dp = false;
bool dump_all = false;
bool dump_secure = false;
va_list args;
@@ -1128,6 +1153,9 @@ void sde_dbg_dump(enum sde_dbg_dump_context dump_mode, const char *name, ...)
if (!strcmp(blk_name, "dsi_dbg_bus"))
dump_dbgbus_dsi = true;
if (!strcmp(blk_name, "dp_dbg_bus"))
dump_dbgbus_dp = true;
if (!strcmp(blk_name, "panic"))
do_panic = true;
@@ -1143,12 +1171,13 @@ void sde_dbg_dump(enum sde_dbg_dump_context dump_mode, const char *name, ...)
sde_dbg_base.dbgbus_vbif_rt.cmn.include_in_deferred_work = dump_dbgbus_vbif_rt;
sde_dbg_base.dbgbus_dsi.cmn.include_in_deferred_work = dump_dbgbus_dsi;
sde_dbg_base.dbgbus_rsc.cmn.include_in_deferred_work = dump_dbgbus_sde;
sde_dbg_base.dbgbus_dp.cmn.include_in_deferred_work = dump_dbgbus_dp;
sde_dbg_base.dump_all = dump_all;
schedule_work(&sde_dbg_base.dump_work);
} else {
_sde_dump_array(blk_arr, blk_len, do_panic, name,
dump_dbgbus_sde, dump_dbgbus_vbif_rt,
dump_dbgbus_dsi, dump_all, dump_secure);
_sde_dump_array(blk_arr, blk_len, do_panic, name, dump_dbgbus_sde,
dump_dbgbus_vbif_rt, dump_dbgbus_dsi, dump_dbgbus_dp,
dump_all, dump_secure);
}
}
@@ -1298,7 +1327,7 @@ static ssize_t sde_evtlog_dump_write(struct file *file,
const char __user *user_buf, size_t count, loff_t *ppos)
{
_sde_dump_array(NULL, 0, sde_dbg_base.panic_on_err, "dump_debugfs",
true, true, true, true, false);
true, true, true, true, true, false);
return count;
}
@@ -1733,6 +1762,28 @@ static const struct file_operations sde_recovery_lutdma_dbgbus_fops = {
.read = sde_recovery_dbgbus_dump_read,
};
static int sde_recovery_dp_dbgbus_dump_open(struct inode *inode,
struct file *file)
{
if (!inode || !file)
return -EINVAL;
/* non-seekable */
file->f_mode &= ~(FMODE_LSEEK | FMODE_PREAD | FMODE_PWRITE);
file->private_data = (void *)&sde_dbg_base.dbgbus_dp.cmn;
mutex_lock(&sde_dbg_base.mutex);
sde_dbg_base.dbgbus_dp.cmn.content_idx = 0;
mutex_unlock(&sde_dbg_base.mutex);
return 0;
}
static const struct file_operations sde_recovery_dp_dbgbus_fops = {
.open = sde_recovery_dp_dbgbus_dump_open,
.read = sde_recovery_dbgbus_dump_read,
};
/**
* sde_dbg_reg_base_release - release allocated reg dump file private data
* @inode: debugfs inode
@@ -2176,6 +2227,15 @@ int sde_dbg_debugfs_register(struct device *dev)
&dbg->dbgbus_lutdma.cmn.enable_mask);
}
if (dbg->dbgbus_dp.entries) {
debugfs_create_file("recovery_dp_dbgbus", 0400, debugfs_root,
NULL, &sde_recovery_dp_dbgbus_fops);
snprintf(debug_name, sizeof(debug_name), "%s_dbgbus",
dbg->dbgbus_dp.cmn.name);
debugfs_create_u32(debug_name, 0600, debugfs_root,
&dbg->dbgbus_dp.cmn.enable_mask);
}
list_for_each_entry(blk_base, &dbg->reg_base_list, reg_base_head) {
snprintf(debug_name, sizeof(debug_name), "%s_off",
blk_base->name);
@@ -2212,6 +2272,7 @@ void sde_dbg_init_dbg_buses(u32 hwversion)
memset(&dbg->dbgbus_vbif_rt, 0, sizeof(dbg->dbgbus_vbif_rt));
memset(&dbg->dbgbus_dsi, 0, sizeof(dbg->dbgbus_dsi));
memset(&dbg->dbgbus_rsc, 0, sizeof(dbg->dbgbus_rsc));
memset(&dbg->dbgbus_dp, 0, sizeof(dbg->dbgbus_dp));
dbg->dbgbus_sde.entries = dbg_bus_sde;
dbg->dbgbus_sde.cmn.entries_size = ARRAY_SIZE(dbg_bus_sde);
@@ -2246,6 +2307,13 @@ void sde_dbg_init_dbg_buses(u32 hwversion)
dbg->dbgbus_rsc.read_tp = _sde_dbg_rsc_read_test_point;
dbg->dbgbus_rsc.clear_tp = _sde_dbg_cmn_clear_test_point;
dbg->dbgbus_dp.entries = dp_dbg_bus;
dbg->dbgbus_dp.cmn.entries_size = ARRAY_SIZE(dp_dbg_bus);
dbg->dbgbus_dp.cmn.name = DBGBUS_NAME_DP;
dbg->dbgbus_dp.cmn.enable_mask = DEFAULT_DBGBUS_DP;
dbg->dbgbus_dp.read_tp = _sde_dbg_dp_read_test_point;
dbg->dbgbus_dp.clear_tp = _sde_dbg_cmn_clear_test_point;
if (SDE_HW_REV_MAJOR(hwversion) >= 0x7) {
dbg->dbgbus_lutdma.entries = dbg_bus_lutdma;
dbg->dbgbus_lutdma.cmn.name = DBGBUS_NAME_LUTDMA;