drm/i915/context/: s/CTX/CXT

*sigh* the docs had it spelled wrong, corrected it, and then proceeded
to re-do the original error. The original code preserved this history,
and this patch attempts to keep in sync with the current docs.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_gem_context.c

@@ -112,8 +112,8 @@ static int get_context_size(struct drm_device *dev)
 		ret = GEN6_CXT_TOTAL_SIZE(reg) * 64;
 		break;
 	case 7:
-		reg = I915_READ(GEN7_CTX_SIZE);
-		ret = GEN7_CTX_TOTAL_SIZE(reg) * 64;
+		reg = I915_READ(GEN7_CXT_SIZE);
+		ret = GEN7_CXT_TOTAL_SIZE(reg) * 64;
 		break;
 	default:
 		BUG();

drivers/gpu/drm/i915/i915_reg.h

@@ -1482,15 +1482,15 @@
 					GEN6_CXT_RENDER_SIZE(cxt_reg) + \
 					GEN6_CXT_EXTENDED_SIZE(cxt_reg) + \
 					GEN6_CXT_PIPELINE_SIZE(cxt_reg))
-#define GEN7_CTX_SIZE		0x21a8
-#define GEN7_CTX_RENDER_SIZE(ctx_reg)	((ctx_reg >> 16) & 0x3f)
-#define GEN7_CTX_EXTENDED_SIZE(ctx_reg)	((ctx_reg >> 9) & 0x7f)
-#define GEN7_CTX_GT1_SIZE(ctx_reg)	((ctx_reg >> 6) & 0x7)
-#define GEN7_CTX_VFSTATE_SIZE(ctx_reg)	((ctx_reg >> 0) & 0x3f)
-#define GEN7_CTX_TOTAL_SIZE(ctx_reg)	(GEN7_CTX_RENDER_SIZE(ctx_reg) + \
-					 GEN7_CTX_EXTENDED_SIZE(ctx_reg) + \
-					 GEN7_CTX_GT1_SIZE(ctx_reg) + \
-					 GEN7_CTX_VFSTATE_SIZE(ctx_reg))
+#define GEN7_CXT_SIZE		0x21a8
+#define GEN7_CXT_RENDER_SIZE(ctx_reg)	((ctx_reg >> 16) & 0x3f)
+#define GEN7_CXT_EXTENDED_SIZE(ctx_reg)	((ctx_reg >> 9) & 0x7f)
+#define GEN7_CXT_GT1_SIZE(ctx_reg)	((ctx_reg >> 6) & 0x7)
+#define GEN7_CXT_VFSTATE_SIZE(ctx_reg)	((ctx_reg >> 0) & 0x3f)
+#define GEN7_CXT_TOTAL_SIZE(ctx_reg)	(GEN7_CXT_RENDER_SIZE(ctx_reg) + \
+					 GEN7_CXT_EXTENDED_SIZE(ctx_reg) + \
+					 GEN7_CXT_GT1_SIZE(ctx_reg) + \
+					 GEN7_CXT_VFSTATE_SIZE(ctx_reg))
 
 /*
  * Overlay regs