diff options
| -rw-r--r-- | drivers/misc/cxl/cxl.h | 14 | ||||
| -rw-r--r-- | drivers/misc/cxl/debugfs.c | 22 | ||||
| -rw-r--r-- | drivers/misc/cxl/pci.c | 38 |
3 files changed, 42 insertions, 32 deletions
diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index fc98f6ad1616..e46a4062904a 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -115,6 +115,7 @@ static const cxl_p1_reg_t CXL_PSL9_TRACECFG = {0x0368}; static const cxl_p1_reg_t CXL_PSL9_APCDEDALLOC = {0x0378}; static const cxl_p1_reg_t CXL_PSL9_APCDEDTYPE = {0x0380}; static const cxl_p1_reg_t CXL_PSL9_TNR_ADDR = {0x0388}; +static const cxl_p1_reg_t CXL_PSL9_CTCCFG = {0x0390}; static const cxl_p1_reg_t CXL_PSL9_GP_CT = {0x0398}; static const cxl_p1_reg_t CXL_XSL9_IERAT = {0x0588}; static const cxl_p1_reg_t CXL_XSL9_ILPP = {0x0590}; @@ -417,6 +418,9 @@ static const cxl_p2n_reg_t CXL_PSL_WED_An = {0x0A0}; #define CXL_CARD_MINOR(adapter) (adapter->adapter_num * CXL_DEV_MINORS) #define CXL_DEVT_ADAPTER(dev) (MINOR(dev) / CXL_DEV_MINORS) +#define CXL_PSL9_TRACEID_MAX 0xAU +#define CXL_PSL9_TRACESTATE_FIN 0x3U + enum cxl_context_status { CLOSED, OPENED, @@ -941,8 +945,6 @@ int cxl_debugfs_adapter_add(struct cxl *adapter); void cxl_debugfs_adapter_remove(struct cxl *adapter); int cxl_debugfs_afu_add(struct cxl_afu *afu); void cxl_debugfs_afu_remove(struct cxl_afu *afu); -void cxl_stop_trace_psl9(struct cxl *cxl); -void cxl_stop_trace_psl8(struct cxl *cxl); void cxl_debugfs_add_adapter_regs_psl9(struct cxl *adapter, struct dentry *dir); void cxl_debugfs_add_adapter_regs_psl8(struct cxl *adapter, struct dentry *dir); void cxl_debugfs_add_adapter_regs_xsl(struct cxl *adapter, struct dentry *dir); @@ -978,14 +980,6 @@ static inline void cxl_debugfs_afu_remove(struct cxl_afu *afu) { } -static inline void cxl_stop_trace_psl9(struct cxl *cxl) -{ -} - -static inline void cxl_stop_trace_psl8(struct cxl *cxl) -{ -} - static inline void cxl_debugfs_add_adapter_regs_psl9(struct cxl *adapter, struct dentry *dir) { diff --git a/drivers/misc/cxl/debugfs.c b/drivers/misc/cxl/debugfs.c index dbb9b58077f6..1643850d2302 100644 --- a/drivers/misc/cxl/debugfs.c +++ b/drivers/misc/cxl/debugfs.c @@ -15,28 +15,6 @@ static struct dentry *cxl_debugfs; -void cxl_stop_trace_psl9(struct cxl *adapter) -{ - /* Stop the trace */ - cxl_p1_write(adapter, CXL_PSL9_TRACECFG, 0x4480000000000000ULL); -} - -void cxl_stop_trace_psl8(struct cxl *adapter) -{ - int slice; - - /* Stop the trace */ - cxl_p1_write(adapter, CXL_PSL_TRACE, 0x8000000000000017LL); - - /* Stop the slice traces */ - spin_lock(&adapter->afu_list_lock); - for (slice = 0; slice < adapter->slices; slice++) { - if (adapter->afu[slice]) - cxl_p1n_write(adapter->afu[slice], CXL_PSL_SLICE_TRACE, 0x8000000000000000LL); - } - spin_unlock(&adapter->afu_list_lock); -} - /* Helpers to export CXL mmaped IO registers via debugfs */ static int debugfs_io_u64_get(void *data, u64 *val) { diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c index d185b47eb536..bb7fd3f4edab 100644 --- a/drivers/misc/cxl/pci.c +++ b/drivers/misc/cxl/pci.c @@ -1747,6 +1747,44 @@ static void cxl_deconfigure_adapter(struct cxl *adapter) pci_disable_device(pdev); } +static void cxl_stop_trace_psl9(struct cxl *adapter) +{ + int traceid; + u64 trace_state, trace_mask; + struct pci_dev *dev = to_pci_dev(adapter->dev.parent); + + /* read each tracearray state and issue mmio to stop them is needed */ + for (traceid = 0; traceid <= CXL_PSL9_TRACEID_MAX; ++traceid) { + trace_state = cxl_p1_read(adapter, CXL_PSL9_CTCCFG); + trace_mask = (0x3ULL << (62 - traceid * 2)); + trace_state = (trace_state & trace_mask) >> (62 - traceid * 2); + dev_dbg(&dev->dev, "cxl: Traceid-%d trace_state=0x%0llX\n", + traceid, trace_state); + + /* issue mmio if the trace array isn't in FIN state */ + if (trace_state != CXL_PSL9_TRACESTATE_FIN) + cxl_p1_write(adapter, CXL_PSL9_TRACECFG, + 0x8400000000000000ULL | traceid); + } +} + +static void cxl_stop_trace_psl8(struct cxl *adapter) +{ + int slice; + + /* Stop the trace */ + cxl_p1_write(adapter, CXL_PSL_TRACE, 0x8000000000000017LL); + + /* Stop the slice traces */ + spin_lock(&adapter->afu_list_lock); + for (slice = 0; slice < adapter->slices; slice++) { + if (adapter->afu[slice]) + cxl_p1n_write(adapter->afu[slice], CXL_PSL_SLICE_TRACE, + 0x8000000000000000LL); + } + spin_unlock(&adapter->afu_list_lock); +} + static const struct cxl_service_layer_ops psl9_ops = { .adapter_regs_init = init_implementation_adapter_regs_psl9, .invalidate_all = cxl_invalidate_all_psl9, |