diff options
| author | David Daney <david.daney@cavium.com> | 2015-01-15 16:11:13 +0300 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2015-02-20 15:31:27 +0100 |
| commit | e3d0ead59f6c1167c817ea338dd9395d517940e1 (patch) | |
| tree | 66f0c4d5f1443b0415cfa4a4f3b420d175abbf24 /arch | |
| parent | 664f1ae53d60943093db9bdb14ac3d95cac4b68c (diff) | |
| download | linux-e3d0ead59f6c1167c817ea338dd9395d517940e1.tar.bz2 | |
MIPS: OCTEON: Implement DCache errata workaround for all CN6XXX
Make messages refer to all CN6XXX.
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8941/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/cavium-octeon/setup.c | 7 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-cavium-octeon/war.h | 3 | ||||
| -rw-r--r-- | arch/mips/mm/uasm.c | 2 |
3 files changed, 8 insertions, 4 deletions
diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c index 2d8a53100e41..6c51ef6d57c7 100644 --- a/arch/mips/cavium-octeon/setup.c +++ b/arch/mips/cavium-octeon/setup.c @@ -1041,7 +1041,7 @@ EXPORT_SYMBOL(prom_putchar); void prom_free_prom_memory(void) { - if (OCTEON_IS_MODEL(OCTEON_CN63XX_PASS1_X)) { + if (CAVIUM_OCTEON_DCACHE_PREFETCH_WAR) { /* Check for presence of Core-14449 fix. */ u32 insn; u32 *foo; @@ -1063,8 +1063,9 @@ void prom_free_prom_memory(void) panic("No PREF instruction at Core-14449 probe point."); if (((insn >> 16) & 0x1f) != 28) - panic("Core-14449 WAR not in place (%04x).\n" - "Please build kernel with proper options (CONFIG_CAVIUM_CN63XXP1).", insn); + panic("OCTEON II DCache prefetch workaround not in place (%04x).\n" + "Please build kernel with proper options (CONFIG_CAVIUM_CN63XXP1).", + insn); } } diff --git a/arch/mips/include/asm/mach-cavium-octeon/war.h b/arch/mips/include/asm/mach-cavium-octeon/war.h index eb72b35cf04b..35c80be92207 100644 --- a/arch/mips/include/asm/mach-cavium-octeon/war.h +++ b/arch/mips/include/asm/mach-cavium-octeon/war.h @@ -22,4 +22,7 @@ #define R10000_LLSC_WAR 0 #define MIPS34K_MISSED_ITLB_WAR 0 +#define CAVIUM_OCTEON_DCACHE_PREFETCH_WAR \ + OCTEON_IS_MODEL(OCTEON_CN6XXX) + #endif /* __ASM_MIPS_MACH_CAVIUM_OCTEON_WAR_H */ diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c index f86d293463a6..319051c34343 100644 --- a/arch/mips/mm/uasm.c +++ b/arch/mips/mm/uasm.c @@ -341,7 +341,7 @@ I_u3u1u2(_ldx) void ISAFUNC(uasm_i_pref)(u32 **buf, unsigned int a, signed int b, unsigned int c) { - if (OCTEON_IS_MODEL(OCTEON_CN63XX_PASS1_X) && a <= 24 && a != 5) + if (CAVIUM_OCTEON_DCACHE_PREFETCH_WAR && a <= 24 && a != 5) /* * As per erratum Core-14449, replace prefetches 0-4, * 6-24 with 'pref 28'. |