cxl: Rename register PSL9_FIR2 to PSL9_FIR_MASK

PSL9 doesn't have a FIR2 register as was the case with PSL8. However
currently the register definitions in 'cxl.h' have a definition for
PSL9_FIR2 that actually points to PSL9_FIR_MASK register in the P1
area at offset 0x308.

So this patch renames the def PSL9_FIR2 to PSL9_FIR_MASK and updates
the references in the code to point to the new identifier. It also
removes the code to dump contents of FIR2 (FIR_MASK actually) in
cxl_native_irq_dump_regs_psl9().

Fixes: f24be42aab37 ("cxl: Add psl9 specific code")
Reported-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

drivers/misc/cxl/cxl.h

@@ -104,7 +104,7 @@ static const cxl_p1_reg_t CXL_XSL9_INV      = {0x0110};
 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};
-static const cxl_p1_reg_t CXL_PSL9_FIR2     = {0x0308};
+static const cxl_p1_reg_t CXL_PSL9_FIR_MASK = {0x0308};
 static const cxl_p1_reg_t CXL_PSL9_Timebase = {0x0310};
 static const cxl_p1_reg_t CXL_PSL9_DEBUG    = {0x0320};
 static const cxl_p1_reg_t CXL_PSL9_FIR_CNTL = {0x0348};

drivers/misc/cxl/debugfs.c

@@ -62,7 +62,8 @@ static struct dentry *debugfs_create_io_x64(const char *name, umode_t mode,
 void cxl_debugfs_add_adapter_regs_psl9(struct cxl *adapter, struct dentry *dir)
 {
 	debugfs_create_io_x64("fir1", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL9_FIR1));
-	debugfs_create_io_x64("fir2", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL9_FIR2));
+	debugfs_create_io_x64("fir_mask", 0400, 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));
 }

drivers/misc/cxl/native.c

@@ -1085,13 +1085,11 @@ static int native_get_irq_info(struct cxl_afu *afu, struct cxl_irq_info *info)
 
 void cxl_native_irq_dump_regs_psl9(struct cxl_context *ctx)
 {
-	u64 fir1, fir2, serr;
+	u64 fir1, serr;
 
 	fir1 = cxl_p1_read(ctx->afu->adapter, CXL_PSL9_FIR1);
-	fir2 = cxl_p1_read(ctx->afu->adapter, CXL_PSL9_FIR2);
 
 	dev_crit(&ctx->afu->dev, "PSL_FIR1: 0x%016llx\n", fir1);
-	dev_crit(&ctx->afu->dev, "PSL_FIR2: 0x%016llx\n", fir2);
 	if (ctx->afu->adapter->native->sl_ops->register_serr_irq) {
 		serr = cxl_p1n_read(ctx->afu, CXL_PSL_SERR_An);
 		cxl_afu_decode_psl_serr(ctx->afu, serr);