diff options
| author | Vaibhav Jain <vaibhav@linux.vnet.ibm.com> | 2017-09-20 11:53:22 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-10-22 12:08:31 +0200 |
| commit | 1cafc629408d1883a00c9f656e3de5a677460a88 (patch) | |
| tree | 6b0b46213bed60730618c259c101013a9964f4d2 /drivers/misc | |
| parent | 92fb8690bd04cb421d987d246deac60eef85d272 (diff) | |
| download | linux-1cafc629408d1883a00c9f656e3de5a677460a88.tar.gz linux-1cafc629408d1883a00c9f656e3de5a677460a88.tar.bz2 linux-1cafc629408d1883a00c9f656e3de5a677460a88.zip | |
cxl: Provide debugfs access to PSL_DEBUG/XSL_DEBUG registers
Access to PSL/XSL_DEBUG registers on the adapter provides easy access
to the debug facilities provided by PSL/XSL. So this patch adds two
new files (debug, xsl-debug) to the cxl-adapter specific debugfs
folder located at /sys/kernel/debugfs/cxl/card<n>, which will provide
direct r/w access to corrosponding debug registers in the adapter
config-space.
Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/cxl/cxl.h | 1 | ||||
| -rw-r--r-- | drivers/misc/cxl/debugfs.c | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index 111c689b1771..fc98f6ad1616 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -101,6 +101,7 @@ static const cxl_p1_reg_t CXL_XSL_DSNCTL = {0x0168}; /* PSL registers - CAIA 2 */ static const cxl_p1_reg_t CXL_PSL9_CONTROL = {0x0020}; static const cxl_p1_reg_t CXL_XSL9_INV = {0x0110}; +static const cxl_p1_reg_t CXL_XSL9_DBG = {0x0130}; static const cxl_p1_reg_t CXL_XSL9_DEF = {0x0140}; static const cxl_p1_reg_t CXL_XSL9_DSNCTL = {0x0168}; static const cxl_p1_reg_t CXL_PSL9_FIR1 = {0x0300}; diff --git a/drivers/misc/cxl/debugfs.c b/drivers/misc/cxl/debugfs.c index 52e3d97db114..dbb9b58077f6 100644 --- a/drivers/misc/cxl/debugfs.c +++ b/drivers/misc/cxl/debugfs.c @@ -66,6 +66,10 @@ void cxl_debugfs_add_adapter_regs_psl9(struct cxl *adapter, struct dentry *dir) _cxl_p1_addr(adapter, CXL_PSL9_FIR_MASK)); debugfs_create_io_x64("fir_cntl", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL9_FIR_CNTL)); debugfs_create_io_x64("trace", S_IRUSR | S_IWUSR, dir, _cxl_p1_addr(adapter, CXL_PSL9_TRACECFG)); + debugfs_create_io_x64("debug", 0600, dir, + _cxl_p1_addr(adapter, CXL_PSL9_DEBUG)); + debugfs_create_io_x64("xsl-debug", 0600, dir, + _cxl_p1_addr(adapter, CXL_XSL9_DBG)); } void cxl_debugfs_add_adapter_regs_psl8(struct cxl *adapter, struct dentry *dir) |