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authorMichael Ellerman <michael@ellerman.id.au>2013-06-28 18:15:16 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-07-01 11:50:10 +1000
commit330a1eb7775ba876dbd46b9885556e57f705e3d4 (patch)
tree138693772ff043ec23e335a1ef42df7a7d5707ba /Documentation/powerpc/00-INDEX
parent2ac138ca21ad26c988ce7c91d27327f85beb7519 (diff)
downloadop-kernel-dev-330a1eb7775ba876dbd46b9885556e57f705e3d4.zip
op-kernel-dev-330a1eb7775ba876dbd46b9885556e57f705e3d4.tar.gz
powerpc/perf: Core EBB support for 64-bit book3s
Add support for EBB (Event Based Branches) on 64-bit book3s. See the included documentation for more details. EBBs are a feature which allows the hardware to branch directly to a specified user space address when a PMU event overflows. This can be used by programs for self-monitoring with no kernel involvement in the inner loop. Most of the logic is in the generic book3s code, primarily to avoid a proliferation of PMU callbacks. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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diff --git a/Documentation/powerpc/00-INDEX b/Documentation/powerpc/00-INDEX
index dd9e9280..05026ce 100644
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@@ -14,6 +14,8 @@ hvcs.txt
- IBM "Hypervisor Virtual Console Server" Installation Guide
mpc52xx.txt
- Linux 2.6.x on MPC52xx family
+pmu-ebb.txt
+ - Description of the API for using the PMU with Event Based Branches.
qe_firmware.txt
- describes the layout of firmware binaries for the Freescale QUICC
Engine and the code that parses and uploads the microcode therein.
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