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725233: PLD instructions executed with PLD data forwarding enabled can result in a processor deadlock This deadlock can happen when NEON load instructions are used together with cache preload instructions (PLD). The problematic conditions can be triggered in-the-wild by NEON optimized functions from pixman library (http://cgit.freedesktop.org/pixman), which perform dynamic adjustment of prefetch distance. The workaround disables PLD data forwarding by setting PLD_FWD bit in L2 Cache Auxiliary Control Register as recommended in ARM Cortex-A8 errata list. The deadlock can only happen on r1pX revisions of Cortex-A8 (used in OMAP34xx/OMAP35xx). Performance impact of the workaround is practically non-existant. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> |
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| .. | ||
| omap3 | ||
| s5pc1xx | ||
| config.mk | ||
| cpu.c | ||
| Makefile | ||
| start.S | ||
| u-boot.lds | ||