cxl: Convert MMIO read/write macros to inline functions

We're about to make these more complex, so make them functions
first.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

drivers/misc/cxl/cxl.h

@@ -537,10 +537,15 @@ static inline void __iomem *_cxl_p1_addr(struct cxl *cxl, cxl_p1_reg_t reg)
 	return cxl->p1_mmio + cxl_reg_off(reg);
 }
 
-#define cxl_p1_write(cxl, reg, val) \
+static inline void cxl_p1_write(struct cxl *cxl, cxl_p1_reg_t reg, u64 val)
-	out_be64(_cxl_p1_addr(cxl, reg), val)
+{
-#define cxl_p1_read(cxl, reg) \
+	out_be64(_cxl_p1_addr(cxl, reg), val);
-	in_be64(_cxl_p1_addr(cxl, reg))
+}
+
+static inline u64 cxl_p1_read(struct cxl *cxl, cxl_p1_reg_t reg)
+{
+	return in_be64(_cxl_p1_addr(cxl, reg));
+}
 
 static inline void __iomem *_cxl_p1n_addr(struct cxl_afu *afu, cxl_p1n_reg_t reg)
 {
@@ -548,26 +553,40 @@ static inline void __iomem *_cxl_p1n_addr(struct cxl_afu *afu, cxl_p1n_reg_t reg
 	return afu->p1n_mmio + cxl_reg_off(reg);
 }
 
-#define cxl_p1n_write(afu, reg, val) \
+static inline void cxl_p1n_write(struct cxl_afu *afu, cxl_p1n_reg_t reg, u64 val)
-	out_be64(_cxl_p1n_addr(afu, reg), val)
+{
-#define cxl_p1n_read(afu, reg) \
+	out_be64(_cxl_p1n_addr(afu, reg), val);
-	in_be64(_cxl_p1n_addr(afu, reg))
+}
+
+static inline u64 cxl_p1n_read(struct cxl_afu *afu, cxl_p1n_reg_t reg)
+{
+	return in_be64(_cxl_p1n_addr(afu, reg));
+}
 
 static inline void __iomem *_cxl_p2n_addr(struct cxl_afu *afu, cxl_p2n_reg_t reg)
 {
 	return afu->p2n_mmio + cxl_reg_off(reg);
 }
 
-#define cxl_p2n_write(afu, reg, val) \
+static inline void cxl_p2n_write(struct cxl_afu *afu, cxl_p2n_reg_t reg, u64 val)
-	out_be64(_cxl_p2n_addr(afu, reg), val)
+{
-#define cxl_p2n_read(afu, reg) \
+	out_be64(_cxl_p2n_addr(afu, reg), val);
-	in_be64(_cxl_p2n_addr(afu, reg))
+}
 
+static inline u64 cxl_p2n_read(struct cxl_afu *afu, cxl_p2n_reg_t reg)
+{
+	return in_be64(_cxl_p2n_addr(afu, reg));
+}
 
-#define cxl_afu_cr_read64(afu, cr, off) \
+static inline u64 cxl_afu_cr_read64(struct cxl_afu *afu, int cr, u64 off)
-	in_le64((afu)->afu_desc_mmio + (afu)->crs_offset + ((cr) * (afu)->crs_len) + (off))
+{
-#define cxl_afu_cr_read32(afu, cr, off) \
+	return in_le64((afu)->afu_desc_mmio + (afu)->crs_offset + ((cr) * (afu)->crs_len) + (off));
-	in_le32((afu)->afu_desc_mmio + (afu)->crs_offset + ((cr) * (afu)->crs_len) + (off))
+}
+
+static inline u32 cxl_afu_cr_read32(struct cxl_afu *afu, int cr, u64 off)
+{
+	return in_le32((afu)->afu_desc_mmio + (afu)->crs_offset + ((cr) * (afu)->crs_len) + (off));
+}
 u16 cxl_afu_cr_read16(struct cxl_afu *afu, int cr, u64 off);
 u8 cxl_afu_cr_read8(struct cxl_afu *afu, int cr, u64 off);