cab561f8d4
6 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Lee Jones
|
b865c5b322 |
misc: cxl: hcalls: Demote half-assed kerneldoc attempt
Function headers will need a lot of work before they reach the standards expected of kerneldoc. Demote them down to basic comments/headers, for now at least. Fixes the following W=1 kernel build warnings: drivers/misc/cxl/hcalls.c:175: warning: Function parameter or member 'unit_address' not described in 'cxl_h_detach_process' drivers/misc/cxl/hcalls.c:175: warning: Function parameter or member 'process_token' not described in 'cxl_h_detach_process' drivers/misc/cxl/hcalls.c:207: warning: Function parameter or member 'unit_address' not described in 'cxl_h_control_function' drivers/misc/cxl/hcalls.c:207: warning: Function parameter or member 'op' not described in 'cxl_h_control_function' drivers/misc/cxl/hcalls.c:207: warning: Function parameter or member 'p1' not described in 'cxl_h_control_function' drivers/misc/cxl/hcalls.c:207: warning: Function parameter or member 'p2' not described in 'cxl_h_control_function' drivers/misc/cxl/hcalls.c:207: warning: Function parameter or member 'p3' not described in 'cxl_h_control_function' drivers/misc/cxl/hcalls.c:207: warning: Function parameter or member 'p4' not described in 'cxl_h_control_function' drivers/misc/cxl/hcalls.c:207: warning: Function parameter or member 'out' not described in 'cxl_h_control_function' drivers/misc/cxl/hcalls.c:245: warning: Function parameter or member 'unit_address' not described in 'cxl_h_reset_afu' drivers/misc/cxl/hcalls.c:258: warning: Function parameter or member 'unit_address' not described in 'cxl_h_suspend_process' drivers/misc/cxl/hcalls.c:258: warning: Function parameter or member 'process_token' not described in 'cxl_h_suspend_process' drivers/misc/cxl/hcalls.c:271: warning: Function parameter or member 'unit_address' not described in 'cxl_h_resume_process' drivers/misc/cxl/hcalls.c:271: warning: Function parameter or member 'process_token' not described in 'cxl_h_resume_process' drivers/misc/cxl/hcalls.c:284: warning: Function parameter or member 'unit_address' not described in 'cxl_h_read_error_state' drivers/misc/cxl/hcalls.c:284: warning: Function parameter or member 'state' not described in 'cxl_h_read_error_state' drivers/misc/cxl/hcalls.c:300: warning: Function parameter or member 'unit_address' not described in 'cxl_h_get_afu_err' drivers/misc/cxl/hcalls.c:300: warning: Function parameter or member 'offset' not described in 'cxl_h_get_afu_err' drivers/misc/cxl/hcalls.c:300: warning: Function parameter or member 'buf_address' not described in 'cxl_h_get_afu_err' drivers/misc/cxl/hcalls.c:300: warning: Function parameter or member 'len' not described in 'cxl_h_get_afu_err' drivers/misc/cxl/hcalls.c:320: warning: Function parameter or member 'unit_address' not described in 'cxl_h_get_config' drivers/misc/cxl/hcalls.c:320: warning: Function parameter or member 'cr_num' not described in 'cxl_h_get_config' drivers/misc/cxl/hcalls.c:320: warning: Function parameter or member 'offset' not described in 'cxl_h_get_config' drivers/misc/cxl/hcalls.c:320: warning: Function parameter or member 'buf_address' not described in 'cxl_h_get_config' drivers/misc/cxl/hcalls.c:320: warning: Function parameter or member 'len' not described in 'cxl_h_get_config' drivers/misc/cxl/hcalls.c:333: warning: Function parameter or member 'unit_address' not described in 'cxl_h_terminate_process' drivers/misc/cxl/hcalls.c:333: warning: Function parameter or member 'process_token' not described in 'cxl_h_terminate_process' drivers/misc/cxl/hcalls.c:351: warning: Function parameter or member 'unit_address' not described in 'cxl_h_collect_vpd' drivers/misc/cxl/hcalls.c:351: warning: Function parameter or member 'record' not described in 'cxl_h_collect_vpd' drivers/misc/cxl/hcalls.c:351: warning: Function parameter or member 'list_address' not described in 'cxl_h_collect_vpd' drivers/misc/cxl/hcalls.c:351: warning: Function parameter or member 'num' not described in 'cxl_h_collect_vpd' drivers/misc/cxl/hcalls.c:351: warning: Function parameter or member 'out' not described in 'cxl_h_collect_vpd' drivers/misc/cxl/hcalls.c:362: warning: Function parameter or member 'unit_address' not described in 'cxl_h_get_fn_error_interrupt' drivers/misc/cxl/hcalls.c:362: warning: Function parameter or member 'reg' not described in 'cxl_h_get_fn_error_interrupt' drivers/misc/cxl/hcalls.c:374: warning: Function parameter or member 'unit_address' not described in 'cxl_h_ack_fn_error_interrupt' drivers/misc/cxl/hcalls.c:374: warning: Function parameter or member 'value' not described in 'cxl_h_ack_fn_error_interrupt' drivers/misc/cxl/hcalls.c:386: warning: Function parameter or member 'unit_address' not described in 'cxl_h_get_error_log' drivers/misc/cxl/hcalls.c:386: warning: Function parameter or member 'value' not described in 'cxl_h_get_error_log' drivers/misc/cxl/hcalls.c:399: warning: Function parameter or member 'unit_address' not described in 'cxl_h_collect_int_info' drivers/misc/cxl/hcalls.c:399: warning: Function parameter or member 'process_token' not described in 'cxl_h_collect_int_info' drivers/misc/cxl/hcalls.c:399: warning: Function parameter or member 'info' not described in 'cxl_h_collect_int_info' drivers/misc/cxl/hcalls.c:440: warning: Function parameter or member 'unit_address' not described in 'cxl_h_control_faults' drivers/misc/cxl/hcalls.c:440: warning: Function parameter or member 'process_token' not described in 'cxl_h_control_faults' drivers/misc/cxl/hcalls.c:440: warning: Function parameter or member 'control_mask' not described in 'cxl_h_control_faults' drivers/misc/cxl/hcalls.c:440: warning: Function parameter or member 'reset_mask' not described in 'cxl_h_control_faults' drivers/misc/cxl/hcalls.c:480: warning: Function parameter or member 'unit_address' not described in 'cxl_h_control_facility' drivers/misc/cxl/hcalls.c:480: warning: Function parameter or member 'op' not described in 'cxl_h_control_facility' drivers/misc/cxl/hcalls.c:480: warning: Function parameter or member 'p1' not described in 'cxl_h_control_facility' drivers/misc/cxl/hcalls.c:480: warning: Function parameter or member 'p2' not described in 'cxl_h_control_facility' drivers/misc/cxl/hcalls.c:480: warning: Function parameter or member 'p3' not described in 'cxl_h_control_facility' drivers/misc/cxl/hcalls.c:480: warning: Function parameter or member 'p4' not described in 'cxl_h_control_facility' drivers/misc/cxl/hcalls.c:480: warning: Function parameter or member 'out' not described in 'cxl_h_control_facility' drivers/misc/cxl/hcalls.c:516: warning: Function parameter or member 'unit_address' not described in 'cxl_h_reset_adapter' drivers/misc/cxl/hcalls.c:532: warning: Function parameter or member 'unit_address' not described in 'cxl_h_collect_vpd_adapter' drivers/misc/cxl/hcalls.c:532: warning: Function parameter or member 'list_address' not described in 'cxl_h_collect_vpd_adapter' drivers/misc/cxl/hcalls.c:532: warning: Function parameter or member 'num' not described in 'cxl_h_collect_vpd_adapter' drivers/misc/cxl/hcalls.c:532: warning: Function parameter or member 'out' not described in 'cxl_h_collect_vpd_adapter' drivers/misc/cxl/hcalls.c:561: warning: Function parameter or member 'unit_address' not described in 'cxl_h_download_facility' drivers/misc/cxl/hcalls.c:561: warning: Function parameter or member 'op' not described in 'cxl_h_download_facility' drivers/misc/cxl/hcalls.c:561: warning: Function parameter or member 'list_address' not described in 'cxl_h_download_facility' drivers/misc/cxl/hcalls.c:561: warning: Function parameter or member 'num' not described in 'cxl_h_download_facility' drivers/misc/cxl/hcalls.c:561: warning: Function parameter or member 'out' not described in 'cxl_h_download_facility' drivers/misc/cxl/hcalls.c:626: warning: Function parameter or member 'unit_address' not described in 'cxl_h_download_adapter_image' drivers/misc/cxl/hcalls.c:626: warning: Function parameter or member 'list_address' not described in 'cxl_h_download_adapter_image' drivers/misc/cxl/hcalls.c:626: warning: Function parameter or member 'num' not described in 'cxl_h_download_adapter_image' drivers/misc/cxl/hcalls.c:626: warning: Function parameter or member 'out' not described in 'cxl_h_download_adapter_image' drivers/misc/cxl/hcalls.c:639: warning: Function parameter or member 'unit_address' not described in 'cxl_h_validate_adapter_image' drivers/misc/cxl/hcalls.c:639: warning: Function parameter or member 'list_address' not described in 'cxl_h_validate_adapter_image' drivers/misc/cxl/hcalls.c:639: warning: Function parameter or member 'num' not described in 'cxl_h_validate_adapter_image' Cc: Frederic Barrat <fbarrat@linux.ibm.com> Cc: Andrew Donnellan <ajd@linux.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20200701083118.45744-28-lee.jones@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
Thomas Gleixner
|
2874c5fd28 |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
Christophe Lombard
|
66ef20c783 |
cxl: Remove unused values in bare-metal environment.
The two previously fields pid and tid, located in the structure cxl_irq_info, are only used in the guest environment. To avoid confusion, it's not necessary to fill the fields in the bare-metal environment. Pid_tid is now renamed to 'reserved' to avoid undefined behavior on bare-metal. The PSL Process and Thread Identification Register (CXL_PSL_PID_TID_An) is only used when attaching a dedicated process for PSL8 only. This register goes away in CAIA2. Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
||
|
Christophe Lombard
|
e7a801ad15 |
cxl: Add tracepoints around the cxl hcall
To ease debugging, add a few tracepoints around the cxl hcalls. Co-authored-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com> Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
||
|
Christophe Lombard
|
14baf4d9c7 |
cxl: Add guest-specific code
The new of.c file contains code to parse the device tree to find out about cxl adapters and AFUs. guest.c implements the guest-specific callbacks for the backend API. The process element ID is not known until the context is attached, so we have to separate the context ID assigned by the cxl driver from the process element ID visible to the user applications. In bare-metal, the 2 IDs match. Co-authored-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com> Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com> Acked-by: Ian Munsie <imunsie@au1.ibm.com> [mpe: Fix SMP=n build, fix PSERIES=n build, minor whitespace fixes] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
||
|
Christophe Lombard
|
444c4ba461 |
cxl: New hcalls to support cxl adapters
The hypervisor calls provide an interface with a coherent platform
facility and function. It matches version 0.16 of the 'PAPR changes'
document.
The following hcalls are supported:
H_ATTACH_CA_PROCESS Attach a process element to a coherent platform
function.
H_DETACH_CA_PROCESS Detach a process element from a coherent
platform function.
H_CONTROL_CA_FUNCTION Allow the partition to manipulate or query
certain coherent platform function behaviors.
H_COLLECT_CA_INT_INFO Collect interrupt info about a coherent.
platform function after an interrupt occurred
H_CONTROL_CA_FAULTS Control the operation of a coherent platform
function after a fault occurs.
H_DOWNLOAD_CA_FACILITY Support for downloading a base adapter image to
the coherent platform facility, and for
validating the entire image after the download.
H_CONTROL_CA_FACILITY Allow the partition to manipulate or query
certain coherent platform facility behaviors.
Co-authored-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
|