32c7ac38ed
In all the routines that loop through a range of virtual addresses, the loop is controlled by subtracting the cache line size from the total length of the request. After the subtract, a 'bpl' instruction was used, which branches if the result of the subtraction is zero or greater, but we need to exit the loop when the count hits zero. Thus, all the bpl instructions in those loops have been changed to 'bhi' (branch if greater than zero). In addition, the two routines that walk through the cache using set-and-index were correct, but confusing. The loop control for those has been simplified, just so that it's easier to see by examination that the code is correct. Routines for other arm architectures and generations still have the bpl instruction, but compensate for the off-by-one situation by decrementing the count register by one before entering the loop. PR: arm/174461 Approved by: cognet (mentor)
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