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| author | Suraj Jitindar Singh <sjitindarsingh@gmail.com> | 2019-11-28 14:46:55 +0100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2019-12-17 10:39:48 +1100 |
| commit | 5cc7e69f6da5c52a0ac9f48ace40caf91fce807d (patch) | |
| tree | c8444b7abf282c8079f2b5eb4ccaa6f58b80e297 /target/ppc/cpu.h | |
| parent | 5d62725b2fefd59abf7225d620f7092fd34b8e11 (diff) | |
| download | qemu-5cc7e69f6da5c52a0ac9f48ace40caf91fce807d.zip | |
target/ppc: Work [S]PURR implementation and add HV support
The Processor Utilisation of Resources Register (PURR) and Scaled
Processor Utilisation of Resources Register (SPURR) provide an estimate
of the resources used by the thread, present on POWER7 and later
processors.
Currently the [S]PURR registers simply count at the rate of the
timebase.
Preserve this behaviour but rework the implementation to store an offset
like the timebase rather than doing the calculation manually. Also allow
hypervisor write access to the register along with the currently
available read access.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[ clg: rebased on current ppc tree ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191128134700.16091-3-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target/ppc/cpu.h')
| -rw-r--r-- | target/ppc/cpu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index eb7d2c7637..da44cc8809 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -1311,6 +1311,7 @@ void cpu_ppc_store_decr(CPUPPCState *env, target_ulong value); target_ulong cpu_ppc_load_hdecr(CPUPPCState *env); void cpu_ppc_store_hdecr(CPUPPCState *env, target_ulong value); uint64_t cpu_ppc_load_purr(CPUPPCState *env); +void cpu_ppc_store_purr(CPUPPCState *env, uint64_t value); uint32_t cpu_ppc601_load_rtcl(CPUPPCState *env); uint32_t cpu_ppc601_load_rtcu(CPUPPCState *env); #if !defined(CONFIG_USER_ONLY) |