MIPS: Abstract CPU core & VP(E) ID access through accessor functions

We currently have fields in struct cpuinfo_mips for the core & VP(E) ID
of a particular CPU, and various pieces of code directly access those
fields. This patch abstracts such access by introducing accessor
functions cpu_core(), cpu_set_core(), cpu_vpe_id() & cpu_set_vpe_id()
and having code that needs to access these values call those functions
rather than directly accessing the struct cpuinfo_mips fields. This
prepares us for changes to the way in which those values are stored in
later patches.

The cpu_vpe_id() function is introduced even though we already had a
cpu_vpe_id() macro for a couple of reasons:

  1) It's more consistent with the core, and future cluster, accessors.

  2) It ensures a sensible return type without explicit casts.

  3) It's generally preferable to use functions rather than macros.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/17009/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h
index 225586bdd81c..6cfc0cc265d7 100644
--- a/arch/mips/include/asm/mips-cm.h
+++ b/arch/mips/include/asm/mips-cm.h
@@ -428,7 +428,7 @@ static inline unsigned int mips_cm_max_vp_width(void)
  */
 static inline unsigned int mips_cm_vp_id(unsigned int cpu)
 {
-	unsigned int core = cpu_data[cpu].core;
+	unsigned int core = cpu_core(&cpu_data[cpu]);
 	unsigned int vp = cpu_vpe_id(&cpu_data[cpu]);
 
 	return (core * mips_cm_max_vp_width()) + vp;