Commit f22ed71c authored Sep 08, 2011 by Daniel Hellstrom Committed by David S. Miller Oct 07, 2011

sparc32,leon: SRMMU MMU Table probe fix



The LEON MMU Model (SRMMU) does not implement MMu Table probing
in hardware, instead it is implemented in software. However the
software implementation does not return the PTE as it should which
always results in INVALID entires and the PROM mappings are not
inherited as they should during startup. The following patch
removes the masking of the PTE.

Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 3ee72ca9

arch/sparc/include/asm/pgtsrmmu.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -280,7 +280,7 @@ static inline unsigned long srmmu_hwprobe(unsigned long vaddr)
		return retval;
		}
		#else
		#define srmmu_hwprobe(addr) (srmmu_swprobe(addr, 0) & SRMMU_PTE_PMASK)
		#define srmmu_hwprobe(addr) srmmu_swprobe(addr, 0)
		#endif

		static inline int

arch/sparc/mm/leon_mm.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -162,7 +162,7 @@ ready:
		printk(KERN_INFO "swprobe: padde %x\n", paddr_calc);
		if (paddr)
		*paddr = paddr_calc;
		return paddrbase;
		return pte;
		}

		void leon_flush_icache_all(void)

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