https://github.com/torvalds/linux
Revision 4badf2eb1e986bdbf34dd2f5d4c979553a86fe54 authored by Gautham R. Shenoy on 17 May 2023, 16:28:15 UTC, committed by Rafael J. Wysocki on 24 May 2023, 17:39:16 UTC
Schedutil normally calls the adjust_perf callback for drivers with
adjust_perf callback available and fast_switch_possible flag set.
However, when frequency invariance is disabled and schedutil tries to
invoke fast_switch. So, there is a chance of kernel crash if this
function pointer is not set. To protect against this scenario add
fast_switch callback to amd_pstate driver.
Fixes: 1d215f0319c2 ("cpufreq: amd-pstate: Add fast switch function for AMD P-State")
Signed-off-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Signed-off-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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History 
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Tip revision: 4badf2eb1e986bdbf34dd2f5d4c979553a86fe54 authored by Gautham R. Shenoy on 17 May 2023, 16:28:15 UTC
cpufreq: amd-pstate: Add ->fast_switch() callback
cpufreq: amd-pstate: Add ->fast_switch() callback
Tip revision: 4badf2e
| File | Mode | Size |
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| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
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| sound | ||
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| usr | ||
| virt | ||
| .clang-format | -rw-r--r-- | 20.1 KB |
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 151 bytes |
| .gitattributes | -rw-r--r-- | 90 bytes |
| .gitignore | -rw-r--r-- | 2.1 KB |
| .mailmap | -rw-r--r-- | 27.9 KB |
| .rustfmt.toml | -rw-r--r-- | 369 bytes |
| COPYING | -rw-r--r-- | 496 bytes |
| CREDITS | -rw-r--r-- | 100.1 KB |
| Kbuild | -rw-r--r-- | 2.5 KB |
| Kconfig | -rw-r--r-- | 555 bytes |
| MAINTAINERS | -rw-r--r-- | 693.1 KB |
| Makefile | -rw-r--r-- | 70.1 KB |
| README | -rw-r--r-- | 727 bytes |
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