On 06/05/15 03:02, Ingo Molnar wrote:
+ * This function is carefully constructed to measure and verify the
+ * performance boost provided by eSRAM. We invalidate the cache with a
+ * wbinvd() and then perform a series of reads - each of which will cause a
+ * cacheline miss. We measure the aggregate time it takes to complete the
+ * series of reads and return the delta in cycles. The calling function will
+ * pass either a pointer to DRAM or a pointer to eSRAM.
+ *
+ * @param walker: Pointer to RAM area to test.
+ * @return: Number of cycles to complete test.
+ */
<snip>
So I don't see the wbinvd() that the description mentions.
wbinvd(); isn't required to make the test do it's job. Missed scrubbing
from the description - damn :(
+ * esram_self_test_init - entry point for IMR driver.
+ * esram_self_test_exit - exit point for IMR code.
Stale 'IMR' references left over from copy & paste?
Yep
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