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author | Yunhong Jiang <yunhong.jiang@linux.intel.com> | 2017-03-08 23:13:28 -0800 |
---|---|---|
committer | Yunhong Jiang <yunhong.jiang@linux.intel.com> | 2017-03-08 23:36:15 -0800 |
commit | 52f993b8e89487ec9ee15a7fb4979e0f09a45b27 (patch) | |
tree | d65304486afe0bea4a311c783c0d72791c8c0aa2 /kernel/arch/parisc/kernel/pacache.S | |
parent | c189ccac5702322ed843fe17057035b7222a59b6 (diff) |
Upgrade to 4.4.50-rt62
The current kernel is based on rt kernel v4.4.6-rt14. We will upgrade it
to 4.4.50-rt62.
The command to achieve it is:
a) Clone a git repo from
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git
b) Get the diff between this two changesets:
git diff 640eca2901f3435e616157b11379d3223a44b391
705619beeea1b0b48219a683fd1a901a86fdaf5e
where the two commits are:
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
640eca2901f3435e616157b11379d3223a44b391
640eca2901f3 v4.4.6-rt14
localversion-rt
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
705619beeea1b0b48219a683fd1a901a86fdaf5e
705619beeea1 Linux 4.4.50-rt62
localversion-rt
c) One patch has been backported thus revert the patch before applying.
filterdiff -p1 -x scripts/package/Makefile
~/tmp/v4.4.6-rt14-4.4.50-rt62.diff |patch -p1 --dry-run
Upstream status: backport
Change-Id: I244d57a32f6066e5a5b9915f9fbf99e7bbca6e01
Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
Diffstat (limited to 'kernel/arch/parisc/kernel/pacache.S')
-rw-r--r-- | kernel/arch/parisc/kernel/pacache.S | 49 |
1 files changed, 18 insertions, 31 deletions
diff --git a/kernel/arch/parisc/kernel/pacache.S b/kernel/arch/parisc/kernel/pacache.S index b743a80ea..a4761b772 100644 --- a/kernel/arch/parisc/kernel/pacache.S +++ b/kernel/arch/parisc/kernel/pacache.S @@ -96,7 +96,7 @@ fitmanyloop: /* Loop if LOOP >= 2 */ fitmanymiddle: /* Loop if LOOP >= 2 */ addib,COND(>) -1, %r31, fitmanymiddle /* Adjusted inner loop decr */ - pitlbe 0(%sr1, %r28) + pitlbe %r0(%sr1, %r28) pitlbe,m %arg1(%sr1, %r28) /* Last pitlbe and addr adjust */ addib,COND(>) -1, %r29, fitmanymiddle /* Middle loop decr */ copy %arg3, %r31 /* Re-init inner loop count */ @@ -139,7 +139,7 @@ fdtmanyloop: /* Loop if LOOP >= 2 */ fdtmanymiddle: /* Loop if LOOP >= 2 */ addib,COND(>) -1, %r31, fdtmanymiddle /* Adjusted inner loop decr */ - pdtlbe 0(%sr1, %r28) + pdtlbe %r0(%sr1, %r28) pdtlbe,m %arg1(%sr1, %r28) /* Last pdtlbe and addr adjust */ addib,COND(>) -1, %r29, fdtmanymiddle /* Middle loop decr */ copy %arg3, %r31 /* Re-init inner loop count */ @@ -620,12 +620,12 @@ ENTRY(copy_user_page_asm) /* Purge any old translations */ #ifdef CONFIG_PA20 - pdtlb,l 0(%r28) - pdtlb,l 0(%r29) + pdtlb,l %r0(%r28) + pdtlb,l %r0(%r29) #else tlb_lock %r20,%r21,%r22 - pdtlb 0(%r28) - pdtlb 0(%r29) + pdtlb %r0(%r28) + pdtlb %r0(%r29) tlb_unlock %r20,%r21,%r22 #endif @@ -768,10 +768,10 @@ ENTRY(clear_user_page_asm) /* Purge any old translation */ #ifdef CONFIG_PA20 - pdtlb,l 0(%r28) + pdtlb,l %r0(%r28) #else tlb_lock %r20,%r21,%r22 - pdtlb 0(%r28) + pdtlb %r0(%r28) tlb_unlock %r20,%r21,%r22 #endif @@ -852,10 +852,10 @@ ENTRY(flush_dcache_page_asm) /* Purge any old translation */ #ifdef CONFIG_PA20 - pdtlb,l 0(%r28) + pdtlb,l %r0(%r28) #else tlb_lock %r20,%r21,%r22 - pdtlb 0(%r28) + pdtlb %r0(%r28) tlb_unlock %r20,%r21,%r22 #endif @@ -886,19 +886,10 @@ ENTRY(flush_dcache_page_asm) fdc,m r31(%r28) fdc,m r31(%r28) fdc,m r31(%r28) - cmpb,COND(<<) %r28, %r25,1b + cmpb,COND(<<) %r28, %r25,1b fdc,m r31(%r28) sync - -#ifdef CONFIG_PA20 - pdtlb,l 0(%r25) -#else - tlb_lock %r20,%r21,%r22 - pdtlb 0(%r25) - tlb_unlock %r20,%r21,%r22 -#endif - bv %r0(%r2) nop .exit @@ -925,13 +916,18 @@ ENTRY(flush_icache_page_asm) depwi 0, 31,PAGE_SHIFT, %r28 /* Clear any offset bits */ #endif - /* Purge any old translation */ + /* Purge any old translation. Note that the FIC instruction + * may use either the instruction or data TLB. Given that we + * have a flat address space, it's not clear which TLB will be + * used. So, we purge both entries. */ #ifdef CONFIG_PA20 + pdtlb,l %r0(%r28) pitlb,l %r0(%sr4,%r28) #else tlb_lock %r20,%r21,%r22 - pitlb (%sr4,%r28) + pdtlb %r0(%r28) + pitlb %r0(%sr4,%r28) tlb_unlock %r20,%r21,%r22 #endif @@ -968,15 +964,6 @@ ENTRY(flush_icache_page_asm) fic,m %r31(%sr4,%r28) sync - -#ifdef CONFIG_PA20 - pitlb,l %r0(%sr4,%r25) -#else - tlb_lock %r20,%r21,%r22 - pitlb (%sr4,%r25) - tlb_unlock %r20,%r21,%r22 -#endif - bv %r0(%r2) nop .exit |