MIPS: dump_tlb: Fix printk continuations

Since commit 4bcc595c ("printk: reinstate KERN_CONT for printing
continuation lines") the output from TLB dumps on MIPS has been
pretty unreadable due to the lack of KERN_CONT markers. Use pr_cont to
provide the appropriate markers & restore the expected output.

Continuation is also used for the second line of each TLB entry printed
in dump_tlb.c even though it has a newline, since it is a continuation
of the interpretation of the same TLB entry. For example:

[   46.371884] Index:  0 pgmask=16kb va=77654000 asid=73 gid=00
        [ri=0 xi=0 pa=ffc18000 c=5 d=0 v=1 g=0] [ri=0 xi=0 pa=ffc1c000 c=5 d=0 v=1 g=0]
[   46.385380] Index: 12 pgmask=16kb va=004b4000 asid=73 gid=00
        [ri=0 xi=0 pa=00000000 c=0 d=0 v=0 g=0] [ri=0 xi=0 pa=ffb00000 c=5 d=1 v=1 g=0]
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Maciej W. Rozycki <macro@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14444/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/lib/dump_tlb.c

@@ -135,11 +135,11 @@ static void dump_tlb(int first, int last)
 		c0 = (entrylo0 & ENTRYLO_C) >> ENTRYLO_C_SHIFT;
 		c1 = (entrylo1 & ENTRYLO_C) >> ENTRYLO_C_SHIFT;
 
-		printk("va=%0*lx asid=%0*lx",
+		pr_cont("va=%0*lx asid=%0*lx",
 			vwidth, (entryhi & ~0x1fffUL),
 			asidwidth, entryhi & asidmask);
 		if (cpu_has_guestid)
-			printk(" gid=%02lx",
+			pr_cont(" gid=%02lx",
 				(guestctl1 & MIPS_GCTL1_RID)
 					>> MIPS_GCTL1_RID_SHIFT);
 		/* RI/XI are in awkward places, so mask them off separately */
@@ -147,12 +147,12 @@ static void dump_tlb(int first, int last)
 		if (xpa)
 			pa |= (unsigned long long)readx_c0_entrylo0() << 30;
 		pa = (pa << 6) & PAGE_MASK;
-		printk("\n\t[");
+		pr_cont("\n\t[");
 		if (cpu_has_rixi)
-			printk("ri=%d xi=%d ",
+			pr_cont("ri=%d xi=%d ",
 				(entrylo0 & MIPS_ENTRYLO_RI) ? 1 : 0,
 				(entrylo0 & MIPS_ENTRYLO_XI) ? 1 : 0);
-		printk("pa=%0*llx c=%d d=%d v=%d g=%d] [",
+		pr_cont("pa=%0*llx c=%d d=%d v=%d g=%d] [",
 			pwidth, pa, c0,
 			(entrylo0 & ENTRYLO_D) ? 1 : 0,
 			(entrylo0 & ENTRYLO_V) ? 1 : 0,
@@ -163,10 +163,10 @@ static void dump_tlb(int first, int last)
 			pa |= (unsigned long long)readx_c0_entrylo1() << 30;
 		pa = (pa << 6) & PAGE_MASK;
 		if (cpu_has_rixi)
-			printk("ri=%d xi=%d ",
+			pr_cont("ri=%d xi=%d ",
 				(entrylo1 & MIPS_ENTRYLO_RI) ? 1 : 0,
 				(entrylo1 & MIPS_ENTRYLO_XI) ? 1 : 0);
-		printk("pa=%0*llx c=%d d=%d v=%d g=%d]\n",
+		pr_cont("pa=%0*llx c=%d d=%d v=%d g=%d]\n",
 			pwidth, pa, c1,
 			(entrylo1 & ENTRYLO_D) ? 1 : 0,
 			(entrylo1 & ENTRYLO_V) ? 1 : 0,

arch/mips/lib/r3k_dump_tlb.c

@@ -53,7 +53,7 @@ static void dump_tlb(int first, int last)
 			 */
 			printk("Index: %2d ", i);
 
-			printk("va=%08lx asid=%08lx"
+			pr_cont("va=%08lx asid=%08lx"
 				"  [pa=%06lx n=%d d=%d v=%d g=%d]",
 				entryhi & PAGE_MASK,
 				entryhi & asid_mask,