diff options
author | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
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committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/gpu/drm/amd/include/cgs_linux.h | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/gpu/drm/amd/include/cgs_linux.h')
-rw-r--r-- | kernel/drivers/gpu/drm/amd/include/cgs_linux.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/amd/include/cgs_linux.h b/kernel/drivers/gpu/drm/amd/include/cgs_linux.h new file mode 100644 index 000000000..3b47ae313 --- /dev/null +++ b/kernel/drivers/gpu/drm/amd/include/cgs_linux.h @@ -0,0 +1,118 @@ +/* + * Copyright 2015 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * + */ +#ifndef _CGS_LINUX_H +#define _CGS_LINUX_H + +#include "cgs_common.h" + +/** + * cgs_irq_source_set_func() - Callback for enabling/disabling interrupt sources + * @private_data: private data provided to cgs_add_irq_source + * @src_id: interrupt source ID + * @type: interrupt type + * @enabled: 0 = disable source, non-0 = enable source + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_irq_source_set_func_t)(void *private_data, + unsigned src_id, unsigned type, + int enabled); + +/** + * cgs_irq_handler_func() - Interrupt handler callback + * @private_data: private data provided to cgs_add_irq_source + * @src_id: interrupt source ID + * @iv_entry: pointer to raw ih ring entry + * + * This callback runs in interrupt context. + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_irq_handler_func_t)(void *private_data, + unsigned src_id, const uint32_t *iv_entry); + +/** + * cgs_add_irq_source() - Add an IRQ source + * @cgs_device: opaque device handle + * @src_id: interrupt source ID + * @num_types: number of interrupt types that can be independently enabled + * @set: callback function to enable/disable an interrupt type + * @handler: interrupt handler callback + * @private_data: private data to pass to callback functions + * + * The same IRQ source can be added only once. Adding an IRQ source + * indicates ownership of that IRQ source and all its IRQ types. + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_add_irq_source_t)(void *cgs_device, unsigned src_id, + unsigned num_types, + cgs_irq_source_set_func_t set, + cgs_irq_handler_func_t handler, + void *private_data); + +/** + * cgs_irq_get() - Request enabling an IRQ source and type + * @cgs_device: opaque device handle + * @src_id: interrupt source ID + * @type: interrupt type + * + * cgs_irq_get and cgs_irq_put calls must be balanced. They count + * "references" to IRQ sources. + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_irq_get_t)(void *cgs_device, unsigned src_id, unsigned type); + +/** + * cgs_irq_put() - Indicate IRQ source is no longer needed + * @cgs_device: opaque device handle + * @src_id: interrupt source ID + * @type: interrupt type + * + * cgs_irq_get and cgs_irq_put calls must be balanced. They count + * "references" to IRQ sources. Even after cgs_irq_put is called, the + * IRQ handler may still be called if there are more refecences to + * the IRQ source. + * + * Return: 0 on success, -errno otherwise + */ +typedef int (*cgs_irq_put_t)(void *cgs_device, unsigned src_id, unsigned type); + +struct cgs_os_ops { + /* IRQ handling */ + cgs_add_irq_source_t add_irq_source; + cgs_irq_get_t irq_get; + cgs_irq_put_t irq_put; +}; + +#define cgs_add_irq_source(dev,src_id,num_types,set,handler,private_data) \ + CGS_OS_CALL(add_irq_source,dev,src_id,num_types,set,handler, \ + private_data) +#define cgs_irq_get(dev,src_id,type) \ + CGS_OS_CALL(irq_get,dev,src_id,type) +#define cgs_irq_put(dev,src_id,type) \ + CGS_OS_CALL(irq_put,dev,src_id,type) + +#endif /* _CGS_LINUX_H */ |