coresight: Simplify sysfs accessors by using csdev_access abstraction

The coresight_device struct is available in the sysfs accessor, and this
contains a csdev_access struct which can be used to access registers.
Use this instead of passing in the type of each drvdata so that a common
function can be shared between all the cs drivers.

No functional changes.

Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Link: https://lore.kernel.org/r/20220830172614.340962-3-james.clark@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

7 files changed, 61 insertions, 80 deletions

diff --git a/drivers/hwtracing/coresight/coresight-catu.c b/drivers/hwtracing/coresight/coresight-catu.c
index e0740c6dbd542..9d89c40540464 100644
--- a/drivers/hwtracing/coresight/coresight-catu.c
+++ b/drivers/hwtracing/coresight/coresight-catu.c
@@ -365,16 +365,14 @@ static const struct etr_buf_operations etr_catu_buf_ops = {
 	.get_data = catu_get_data_etr_buf,
 };
 
-coresight_simple_reg32(struct catu_drvdata, devid, CORESIGHT_DEVID);
-coresight_simple_reg32(struct catu_drvdata, control, CATU_CONTROL);
-coresight_simple_reg32(struct catu_drvdata, status, CATU_STATUS);
-coresight_simple_reg32(struct catu_drvdata, mode, CATU_MODE);
-coresight_simple_reg32(struct catu_drvdata, axictrl, CATU_AXICTRL);
-coresight_simple_reg32(struct catu_drvdata, irqen, CATU_IRQEN);
-coresight_simple_reg64(struct catu_drvdata, sladdr,
-		       CATU_SLADDRLO, CATU_SLADDRHI);
-coresight_simple_reg64(struct catu_drvdata, inaddr,
-		       CATU_INADDRLO, CATU_INADDRHI);
+coresight_simple_reg32(devid, CORESIGHT_DEVID);
+coresight_simple_reg32(control, CATU_CONTROL);
+coresight_simple_reg32(status, CATU_STATUS);
+coresight_simple_reg32(mode, CATU_MODE);
+coresight_simple_reg32(axictrl, CATU_AXICTRL);
+coresight_simple_reg32(irqen, CATU_IRQEN);
+coresight_simple_reg64(sladdr, CATU_SLADDRLO, CATU_SLADDRHI);
+coresight_simple_reg64(inaddr, CATU_INADDRLO, CATU_INADDRHI);
 
 static struct attribute *catu_mgmt_attrs[] = {
 	&dev_attr_devid.attr,
diff --git a/drivers/hwtracing/coresight/coresight-etb10.c b/drivers/hwtracing/coresight/coresight-etb10.c
index efa39820aceca..405bb3355cb19 100644
--- a/drivers/hwtracing/coresight/coresight-etb10.c
+++ b/drivers/hwtracing/coresight/coresight-etb10.c
@@ -655,17 +655,14 @@ static const struct file_operations etb_fops = {
 	.llseek		= no_llseek,
 };
 
-#define coresight_etb10_reg(name, offset)		\
-	coresight_simple_reg32(struct etb_drvdata, name, offset)
-
-coresight_etb10_reg(rdp, ETB_RAM_DEPTH_REG);
-coresight_etb10_reg(sts, ETB_STATUS_REG);
-coresight_etb10_reg(rrp, ETB_RAM_READ_POINTER);
-coresight_etb10_reg(rwp, ETB_RAM_WRITE_POINTER);
-coresight_etb10_reg(trg, ETB_TRG);
-coresight_etb10_reg(ctl, ETB_CTL_REG);
-coresight_etb10_reg(ffsr, ETB_FFSR);
-coresight_etb10_reg(ffcr, ETB_FFCR);
+coresight_simple_reg32(rdp, ETB_RAM_DEPTH_REG);
+coresight_simple_reg32(sts, ETB_STATUS_REG);
+coresight_simple_reg32(rrp, ETB_RAM_READ_POINTER);
+coresight_simple_reg32(rwp, ETB_RAM_WRITE_POINTER);
+coresight_simple_reg32(trg, ETB_TRG);
+coresight_simple_reg32(ctl, ETB_CTL_REG);
+coresight_simple_reg32(ffsr, ETB_FFSR);
+coresight_simple_reg32(ffcr, ETB_FFCR);
 
 static struct attribute *coresight_etb_mgmt_attrs[] = {
 	&dev_attr_rdp.attr,
diff --git a/drivers/hwtracing/coresight/coresight-etm3x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm3x-sysfs.c
index 68fcbf4ce7a8e..12f8e8176c7e3 100644
--- a/drivers/hwtracing/coresight/coresight-etm3x-sysfs.c
+++ b/drivers/hwtracing/coresight/coresight-etm3x-sysfs.c
@@ -1252,19 +1252,16 @@ static struct attribute *coresight_etm_attrs[] = {
 	NULL,
 };
 
-#define coresight_etm3x_reg(name, offset)			\
-	coresight_simple_reg32(struct etm_drvdata, name, offset)
-
-coresight_etm3x_reg(etmccr, ETMCCR);
-coresight_etm3x_reg(etmccer, ETMCCER);
-coresight_etm3x_reg(etmscr, ETMSCR);
-coresight_etm3x_reg(etmidr, ETMIDR);
-coresight_etm3x_reg(etmcr, ETMCR);
-coresight_etm3x_reg(etmtraceidr, ETMTRACEIDR);
-coresight_etm3x_reg(etmteevr, ETMTEEVR);
-coresight_etm3x_reg(etmtssvr, ETMTSSCR);
-coresight_etm3x_reg(etmtecr1, ETMTECR1);
-coresight_etm3x_reg(etmtecr2, ETMTECR2);
+coresight_simple_reg32(etmccr, ETMCCR);
+coresight_simple_reg32(etmccer, ETMCCER);
+coresight_simple_reg32(etmscr, ETMSCR);
+coresight_simple_reg32(etmidr, ETMIDR);
+coresight_simple_reg32(etmcr, ETMCR);
+coresight_simple_reg32(etmtraceidr, ETMTRACEIDR);
+coresight_simple_reg32(etmteevr, ETMTEEVR);
+coresight_simple_reg32(etmtssvr, ETMTSSCR);
+coresight_simple_reg32(etmtecr1, ETMTECR1);
+coresight_simple_reg32(etmtecr2, ETMTECR2);
 
 static struct attribute *coresight_etm_mgmt_attrs[] = {
 	&dev_attr_etmccr.attr,
diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h
index f2458b794ef3e..cf8ae768106eb 100644
--- a/drivers/hwtracing/coresight/coresight-priv.h
+++ b/drivers/hwtracing/coresight/coresight-priv.h
@@ -40,23 +40,23 @@
 #define ETM_MODE_EXCL_KERN	BIT(30)
 #define ETM_MODE_EXCL_USER	BIT(31)
 
-#define __coresight_simple_show(type, name, lo_off, hi_off)		\
+#define __coresight_simple_show(name, lo_off, hi_off)		\
 static ssize_t name##_show(struct device *_dev,				\
 			   struct device_attribute *attr, char *buf)	\
 {									\
-	type *drvdata = dev_get_drvdata(_dev->parent);			\
+	struct coresight_device *csdev = container_of(_dev, struct coresight_device, dev); \
 	u64 val;							\
 	pm_runtime_get_sync(_dev->parent);				\
-	val = coresight_read_reg_pair(drvdata->base, lo_off, hi_off);	\
+	val = csdev_access_relaxed_read_pair(&csdev->access, lo_off, hi_off);	\
 	pm_runtime_put_sync(_dev->parent);				\
 	return scnprintf(buf, PAGE_SIZE, "0x%llx\n", val);		\
 }									\
 static DEVICE_ATTR_RO(name)
 
-#define coresight_simple_reg32(type, name, offset)			\
-	__coresight_simple_show(type, name, offset, -1)
-#define coresight_simple_reg64(type, name, lo_off, hi_off)		\
-	__coresight_simple_show(type, name, lo_off, hi_off)
+#define coresight_simple_reg32(name, offset)			\
+	__coresight_simple_show(name, offset, -1)
+#define coresight_simple_reg64(name, lo_off, hi_off)		\
+	__coresight_simple_show(name, lo_off, hi_off)
 
 extern const u32 coresight_barrier_pkt[4];
 #define CORESIGHT_BARRIER_PKT_SIZE (sizeof(coresight_barrier_pkt))
diff --git a/drivers/hwtracing/coresight/coresight-replicator.c b/drivers/hwtracing/coresight/coresight-replicator.c
index b86acbc74cf03..7cffcbb2ec42e 100644
--- a/drivers/hwtracing/coresight/coresight-replicator.c
+++ b/drivers/hwtracing/coresight/coresight-replicator.c
@@ -196,11 +196,8 @@ static const struct coresight_ops replicator_cs_ops = {
 	.link_ops	= &replicator_link_ops,
 };
 
-#define coresight_replicator_reg(name, offset) \
-	coresight_simple_reg32(struct replicator_drvdata, name, offset)
-
-coresight_replicator_reg(idfilter0, REPLICATOR_IDFILTER0);
-coresight_replicator_reg(idfilter1, REPLICATOR_IDFILTER1);
+coresight_simple_reg32(idfilter0, REPLICATOR_IDFILTER0);
+coresight_simple_reg32(idfilter1, REPLICATOR_IDFILTER1);
 
 static struct attribute *replicator_mgmt_attrs[] = {
 	&dev_attr_idfilter0.attr,
diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index bb14a3a8a9210..4a31905604fea 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -634,21 +634,18 @@ static ssize_t traceid_store(struct device *dev,
 }
 static DEVICE_ATTR_RW(traceid);
 
-#define coresight_stm_reg(name, offset)	\
-	coresight_simple_reg32(struct stm_drvdata, name, offset)
-
-coresight_stm_reg(tcsr, STMTCSR);
-coresight_stm_reg(tsfreqr, STMTSFREQR);
-coresight_stm_reg(syncr, STMSYNCR);
-coresight_stm_reg(sper, STMSPER);
-coresight_stm_reg(spter, STMSPTER);
-coresight_stm_reg(privmaskr, STMPRIVMASKR);
-coresight_stm_reg(spscr, STMSPSCR);
-coresight_stm_reg(spmscr, STMSPMSCR);
-coresight_stm_reg(spfeat1r, STMSPFEAT1R);
-coresight_stm_reg(spfeat2r, STMSPFEAT2R);
-coresight_stm_reg(spfeat3r, STMSPFEAT3R);
-coresight_stm_reg(devid, CORESIGHT_DEVID);
+coresight_simple_reg32(tcsr, STMTCSR);
+coresight_simple_reg32(tsfreqr, STMTSFREQR);
+coresight_simple_reg32(syncr, STMSYNCR);
+coresight_simple_reg32(sper, STMSPER);
+coresight_simple_reg32(spter, STMSPTER);
+coresight_simple_reg32(privmaskr, STMPRIVMASKR);
+coresight_simple_reg32(spscr, STMSPSCR);
+coresight_simple_reg32(spmscr, STMSPMSCR);
+coresight_simple_reg32(spfeat1r, STMSPFEAT1R);
+coresight_simple_reg32(spfeat2r, STMSPFEAT2R);
+coresight_simple_reg32(spfeat3r, STMSPFEAT3R);
+coresight_simple_reg32(devid, CORESIGHT_DEVID);
 
 static struct attribute *coresight_stm_attrs[] = {
 	&dev_attr_hwevent_enable.attr,
diff --git a/drivers/hwtracing/coresight/coresight-tmc-core.c b/drivers/hwtracing/coresight/coresight-tmc-core.c
index d0276af82494c..781d213526b78 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-core.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-core.c
@@ -251,25 +251,20 @@ static enum tmc_mem_intf_width tmc_get_memwidth(u32 devid)
 	return memwidth;
 }
 
-#define coresight_tmc_reg(name, offset)			\
-	coresight_simple_reg32(struct tmc_drvdata, name, offset)
-#define coresight_tmc_reg64(name, lo_off, hi_off)	\
-	coresight_simple_reg64(struct tmc_drvdata, name, lo_off, hi_off)
-
-coresight_tmc_reg(rsz, TMC_RSZ);
-coresight_tmc_reg(sts, TMC_STS);
-coresight_tmc_reg(trg, TMC_TRG);
-coresight_tmc_reg(ctl, TMC_CTL);
-coresight_tmc_reg(ffsr, TMC_FFSR);
-coresight_tmc_reg(ffcr, TMC_FFCR);
-coresight_tmc_reg(mode, TMC_MODE);
-coresight_tmc_reg(pscr, TMC_PSCR);
-coresight_tmc_reg(axictl, TMC_AXICTL);
-coresight_tmc_reg(authstatus, TMC_AUTHSTATUS);
-coresight_tmc_reg(devid, CORESIGHT_DEVID);
-coresight_tmc_reg64(rrp, TMC_RRP, TMC_RRPHI);
-coresight_tmc_reg64(rwp, TMC_RWP, TMC_RWPHI);
-coresight_tmc_reg64(dba, TMC_DBALO, TMC_DBAHI);
+coresight_simple_reg32(rsz, TMC_RSZ);
+coresight_simple_reg32(sts, TMC_STS);
+coresight_simple_reg32(trg, TMC_TRG);
+coresight_simple_reg32(ctl, TMC_CTL);
+coresight_simple_reg32(ffsr, TMC_FFSR);
+coresight_simple_reg32(ffcr, TMC_FFCR);
+coresight_simple_reg32(mode, TMC_MODE);
+coresight_simple_reg32(pscr, TMC_PSCR);
+coresight_simple_reg32(axictl, TMC_AXICTL);
+coresight_simple_reg32(authstatus, TMC_AUTHSTATUS);
+coresight_simple_reg32(devid, CORESIGHT_DEVID);
+coresight_simple_reg64(rrp, TMC_RRP, TMC_RRPHI);
+coresight_simple_reg64(rwp, TMC_RWP, TMC_RWPHI);
+coresight_simple_reg64(dba, TMC_DBALO, TMC_DBAHI);
 
 static struct attribute *coresight_tmc_mgmt_attrs[] = {
 	&dev_attr_rsz.attr,