summaryrefslogtreecommitdiffstats
path: root/drivers/powercap/intel_rapl_common.c
AgeCommit message (Collapse)Author
2020-03-24powercap/intel_rapl: Convert to new X86 CPU match macrosThomas Gleixner
The new macro set has a consistent namespace and uses C99 initializers instead of the grufty C89 ones. Get rid the of the local macro wrappers for consistency. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lkml.kernel.org/r/20200320131510.501728797@linutronix.de
2020-01-13Merge back power capping changes for v5.6.Rafael J. Wysocki
2020-01-07powercap: intel_rapl: add NULL pointer check to rapl_mmio_cpu_online()Harry Pan
RAPL MMIO support depends on the RAPL common driver. During CPU initialization rapl_mmio_cpu_online() is called via CPU hotplug to initialize the MMIO RAPL for the new CPU, but if that CPU is not present in the common RAPL driver's support list, rapl_defaults is NULL and the kernel crashes on an attempt to dereference it: [ 4.188566] BUG: kernel NULL pointer dereference, address: 0000000000000020 ...snip... [ 4.189555] RIP: 0010:rapl_add_package+0x223/0x574 [ 4.189555] Code: b5 a0 31 c0 49 8b 4d 78 48 01 d9 48 8b 0c c1 49 89 4c c6 10 48 ff c0 48 83 f8 05 75 e7 49 83 ff 03 75 15 48 8b 05 09 bc 18 01 <8b> 70 20 41 89 b6 0c 05 00 00 85 f6 75 1a 49 81 c6 18 9 [ 4.189555] RSP: 0000:ffffb3adc00b3d90 EFLAGS: 00010246 [ 4.189555] RAX: 0000000000000000 RBX: 0000000000000098 RCX: 0000000000000000 [ 4.267161] usb 1-1: New USB device found, idVendor=2109, idProduct=2812, bcdDevice= b.e0 [ 4.189555] RDX: 0000000000001000 RSI: 0000000000000000 RDI: ffff9340caafd000 [ 4.189555] RBP: ffffb3adc00b3df8 R08: ffffffffa0246e28 R09: ffff9340caafc000 [ 4.189555] R10: 000000000000024a R11: ffffffff9ff1f6f2 R12: 00000000ffffffed [ 4.189555] R13: ffff9340caa94800 R14: ffff9340caafc518 R15: 0000000000000003 [ 4.189555] FS: 0000000000000000(0000) GS:ffff9340ce200000(0000) knlGS:0000000000000000 [ 4.189555] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4.189555] CR2: 0000000000000020 CR3: 0000000302c14001 CR4: 00000000003606f0 [ 4.189555] Call Trace: [ 4.189555] ? __switch_to_asm+0x40/0x70 [ 4.189555] rapl_mmio_cpu_online+0x47/0x64 [ 4.189555] ? rapl_mmio_write_raw+0x33/0x33 [ 4.281059] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 4.189555] cpuhp_invoke_callback+0x29f/0x66f [ 4.189555] ? __schedule+0x46d/0x6a0 [ 4.189555] cpuhp_thread_fun+0xb9/0x11c [ 4.189555] smpboot_thread_fn+0x17d/0x22f [ 4.297006] usb 1-1: Product: USB2.0 Hub [ 4.189555] ? cpu_report_death+0x43/0x43 [ 4.189555] kthread+0x137/0x13f [ 4.189555] ? cpu_report_death+0x43/0x43 [ 4.189555] ? kthread_blkcg+0x2e/0x2e [ 4.312951] usb 1-1: Manufacturer: VIA Labs, Inc. [ 4.189555] ret_from_fork+0x1f/0x40 [ 4.189555] Modules linked in: [ 4.189555] CR2: 0000000000000020 [ 4.189555] ---[ end trace 01bb812aabc791f4 ]--- To avoid that problem, check rapl_defaults NULL upfront and return an error code if it is NULL. [Note that it does not make sense to even try to allocate memory in that case, because it is not going to be used anyway.] Fixes: 555c45fe0d04 ("int340X/processor_thermal_device: add support for MMIO RAPL") Cc: 5.3+ <stable@vger.kernel.org> # 5.3+ Signed-off-by: Harry Pan <harry.pan@intel.com> [ rjw: Subject & changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-12-20powercap/intel_rapl: add support for JasperLakeZhang Rui
Add intel_rapl support for Jasper Lake. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-12-17powercap/intel_rapl: add support for TigerLake MobileZhang Rui
Add TigerLake Mobile support in intel_rapl driver. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-11-04powercap/intel_rapl: add support for Cometlake desktopZhang Rui
Add CometLake desktop support in intel_rapl driver Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-11-04powercap/intel_rapl: add support for CometLake MobileZhang Rui
Add CometLake Mobile support in intel_rapl driver Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-28x86/intel: Aggregate microserver namingPeter Zijlstra
Currently big microservers have _XEON_D while small microservers have _X, Make it uniformly: _D. for i in `git grep -l "\(INTEL_FAM6_\|VULNWL_INTEL\|INTEL_CPU_FAM6\).*_\(X\|XEON_D\)"` do sed -i -e 's/\(\(INTEL_FAM6_\|VULNWL_INTEL\|INTEL_CPU_FAM6\).*ATOM.*\)_X/\1_D/g' \ -e 's/\(\(INTEL_FAM6_\|VULNWL_INTEL\|INTEL_CPU_FAM6\).*\)_XEON_D/\1_D/g' ${i} done Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Tony Luck <tony.luck@intel.com> Cc: x86@kernel.org Cc: Dave Hansen <dave.hansen@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Borislav Petkov <bp@alien8.de> Link: https://lkml.kernel.org/r/20190827195122.677152989@infradead.org
2019-08-28x86/intel: Aggregate big core graphics namingPeter Zijlstra
Currently big core clients with extra graphics on have: - _G - _GT3E Make it uniformly: _G for i in `git grep -l "\(INTEL_FAM6_\|VULNWL_INTEL\|INTEL_CPU_FAM6\).*_GT3E"` do sed -i -e 's/\(\(INTEL_FAM6_\|VULNWL_INTEL\|INTEL_CPU_FAM6\).*\)_GT3E/\1_G/g' ${i} done Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Tony Luck <tony.luck@intel.com> Cc: x86@kernel.org Cc: Dave Hansen <dave.hansen@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Borislav Petkov <bp@alien8.de> Link: https://lkml.kernel.org/r/20190827195122.622802314@infradead.org
2019-08-28x86/intel: Aggregate big core mobile namingPeter Zijlstra
Currently big core mobile chips have either: - _L - _ULT - _MOBILE Make it uniformly: _L. for i in `git grep -l "\(INTEL_FAM6_\|VULNWL_INTEL\|INTEL_CPU_FAM6\).*_\(MOBILE\|ULT\)"` do sed -i -e 's/\(\(INTEL_FAM6_\|VULNWL_INTEL\|INTEL_CPU_FAM6\).*\)_\(MOBILE\|ULT\)/\1_L/g' ${i} done Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Tony Luck <tony.luck@intel.com> Cc: x86@kernel.org Cc: Dave Hansen <dave.hansen@intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190827195122.568978530@infradead.org
2019-08-28x86/intel: Aggregate big core client namingPeter Zijlstra
Currently the big core client models either have: - no OPTDIFF - _CORE - _DESKTOP Make it uniformly: 'no OPTDIFF'. for i in `git grep -l "\(INTEL_FAM6_\|VULNWL_INTEL\|INTEL_CPU_FAM6\).*_\(CORE\|DESKTOP\)"` do sed -i -e 's/\(\(INTEL_FAM6_\|VULNWL_INTEL\|INTEL_CPU_FAM6\).*\)_\(CORE\|DESKTOP\)/\1/g' ${i} done Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Tony Luck <tony.luck@intel.com> Cc: x86@kernel.org Cc: Dave Hansen <dave.hansen@intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190827195122.513945586@infradead.org
2019-07-22powercap: Invoke powercap_init() and rapl_init() earlierZhang Rui
The MMIO RAPL interface driver depends on both powercap subsystem and the intel_rapl_common code. But when all of them are built-in, the MMIO RAPL interface driver can be loaded before the other two and this breaks the system during boot. Fix this by adjusting the init order of the powercap subsystem and the intel_rapl_common code, so that it can be initialized first. Fixes: 555c45fe0d04 ("int340X/processor_thermal_device: add support for MMIO RAPL") Reported-by: Kenneth R. Crudup <kenny@panix.com> Tested-by: Kenneth R. Crudup <kenny@panix.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> [ rjw: Subject & changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-07-11powercap/rapl: Add Ice Lake NNPI support to RAPL driverRajneesh Bhardwaj
Enables support for ICL-NNPI, which is a neural network processor for deep learning inference. From RAPL point of view it is same as Ice Lake Mobile processor. Link: https://lkml.org/lkml/2019/6/5/1034 Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-07-11powercap/intel_rapl: add support for ICX-DZhang Rui
Add ICX-D support in intel_rapl driver Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-07-11powercap/intel_rapl: add support for ICXZhang Rui
Add ICX support in intel_rapl driver Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-07-11powercap/intel_rapl: add support for IceLake desktopZhang Rui
Add IceLake desktop support in intel_rapl driver Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com> Signed-off-by: Joe Konno <joe.konno@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-07-11intel_rapl: Fix module autoloading issueZhang Rui
intel_rapl driver used to have a list of cpuids, which is used to 1. check if the processor support RAPL MSRs 2. do some cpu model specific setting 3. module autoloading Now, the cpu model specific setting are moved to intel_rapl_common.c as part of the common code, because the setup is also needed by RAPL MMIO interface on those platforms. But removing the cpuid list from intel_rapl MSR interface driver results in that the driver can not be loaded automatically. Maintaining another copy of the cpuid list in intel_rapl_msr.c does not make sense because it increases the complexity when enabling RAPL support on a new cpu model. Fix the problem by creating an "intel_rapl_msr" platform device in the common code, and make RAPL MSR interface driver (intel_rapl_msr.c) probe the platform device directly. Reviewed-by: Pandruvada, Srinivas <srinivas.pandruvada@intel.com> Tested-by: Pandruvada, Srinivas <srinivas.pandruvada@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-07-11intel_rapl: support two power limits for every RAPL domainZhang Rui
RAPL MSR interface supports 2 power limits for package domain, and 1 power limit for other domains, while RAPL MMIO interface supports 2 power limits for both package and dram domains. And when 2 power limits are supported, the FW_LOCK bit is in bit 63 of the register, instead of bit 31. Remove the assumption that only pakcage domain supports 2 power limits. And allow the RAPL interface driver to specify the number of power limits supported, for every single RAPL domain it owns.. Reviewed-by: Pandruvada, Srinivas <srinivas.pandruvada@intel.com> Tested-by: Pandruvada, Srinivas <srinivas.pandruvada@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-07-11intel_rapl: support 64 bit registerZhang Rui
RAPL MMIO interface uses 64 bit registers, thus force use 64 bit register for all the RAPL code. Reviewed-by: Pandruvada, Srinivas <srinivas.pandruvada@intel.com> Tested-by: Pandruvada, Srinivas <srinivas.pandruvada@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-07-11intel_rapl: abstract RAPL common codeZhang Rui
Split intel_rapl.c to intel_rapl_common.c and intel_rapl_msr.c, where intel_rapl_common.c contains the common code that can be used by both MSR and MMIO interface. intel_rapl_msr.c contains the implementation of RAPL MSR interface. Reviewed-by: Pandruvada, Srinivas <srinivas.pandruvada@intel.com> Tested-by: Pandruvada, Srinivas <srinivas.pandruvada@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-23 17:19:25 +0000