Revert "perf/arm_dmc620: Remove duplicate format attribute #defines"

This reverts commit a5f4ca68f348ac059efd6a3d7ad4040aed1c0818.

Pulling in the Arm-specific 'linux/perf/arm_pmu.h' header breaks the
allmodconfig build for x86:

> In file included from drivers/perf/arm_dmc620_pmu.c:26:
> include/linux/perf/arm_pmu.h:15:10: fatal error: asm/cputype.h: No such file or directory
> 15 | #include <asm/cputype.h>
> | ^~~~~~~~~~~~~~~

Just put things back like they were so that the driver can continue to
be compile-tested on a variety of architectures.

Link: https://lore.kernel.org/r/[e-mail]
Reported-by: Stephen Rothwell <[e-mail]>
Signed-off-by: Will Deacon <[e-mail]>

drivers/perf/arm_dmc620_pmu.c

···
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/perf_event.h>
-#include <linux/perf/arm_pmu.h>
 #include <linux/platform_device.h>
 #include <linux/printk.h>
 #include <linux/rculist.h>
···
 #define ATTR_CFG_FLD_clkdiv2_CFG	config2
 #define ATTR_CFG_FLD_clkdiv2_LO		9
 #define ATTR_CFG_FLD_clkdiv2_HI		9
+
+#define __GEN_PMU_FORMAT_ATTR(cfg, lo, hi)			\
+	(lo) == (hi) ? #cfg ":" #lo "\n" : #cfg ":" #lo "-" #hi
+
+#define _GEN_PMU_FORMAT_ATTR(cfg, lo, hi)			\
+	__GEN_PMU_FORMAT_ATTR(cfg, lo, hi)
+
+#define GEN_PMU_FORMAT_ATTR(name)				\
+	PMU_FORMAT_ATTR(name,					\
+	_GEN_PMU_FORMAT_ATTR(ATTR_CFG_FLD_##name##_CFG,		\
+			     ATTR_CFG_FLD_##name##_LO,		\
+			     ATTR_CFG_FLD_##name##_HI))
+
+#define _ATTR_CFG_GET_FLD(attr, cfg, lo, hi)			\
+	((((attr)->cfg) >> lo) & GENMASK_ULL(hi - lo, 0))
+
+#define ATTR_CFG_GET_FLD(attr, name)				\
+	_ATTR_CFG_GET_FLD(attr,					\
+			  ATTR_CFG_FLD_##name##_CFG,		\
+			  ATTR_CFG_FLD_##name##_LO,		\
+			  ATTR_CFG_FLD_##name##_HI)
 
 GEN_PMU_FORMAT_ATTR(mask);
 GEN_PMU_FORMAT_ATTR(match);