t83x/kernel/drivers/gpu/arm/midgard/backend/gpu/mali_kbase_device_internal.h

   1 /*
   2  *
   3  * (C) COPYRIGHT 2014 ARM Limited. All rights reserved.
   4  *
   5  * This program is free software and is provided to you under the terms of the
   6  * GNU General Public License version 2 as published by the Free Software
   7  * Foundation, and any use by you of this program is subject to the terms
   8  * of such GNU licence.
   9  *
  10  * A copy of the licence is included with the program, and can also be obtained
  11  * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  12  * Boston, MA  02110-1301, USA.
  13  *
  14  */
  15
  16
  17
  18
  19
  20 /*
  21  * Backend-specific HW access device APIs
  22  */
  23
  24 #ifndef _KBASE_DEVICE_INTERNAL_H_
  25 #define _KBASE_DEVICE_INTERNAL_H_
  26
  27 /**
  28  * kbase_reg_write - write to GPU register
  29  * @kbdev:  Kbase device pointer
  30  * @offset: Offset of register
  31  * @value:  Value to write
  32  * @kctx:   Kbase context pointer. May be NULL
  33  *
  34  * Caller must ensure the GPU is powered (@kbdev->pm.gpu_powered != false). If
  35  * @kctx is not NULL then the caller must ensure it is scheduled (@kctx->as_nr
  36  * != KBASEP_AS_NR_INVALID).
  37  */
  38 void kbase_reg_write(struct kbase_device *kbdev, u16 offset, u32 value,
  39                                                 struct kbase_context *kctx);
  40
  41 /**
  42  * kbase_reg_read - read from GPU register
  43  * @kbdev:  Kbase device pointer
  44  * @offset: Offset of register
  45  * @kctx:   Kbase context pointer. May be NULL
  46  *
  47  * Caller must ensure the GPU is powered (@kbdev->pm.gpu_powered != false). If
  48  * @kctx is not NULL then the caller must ensure it is scheduled (@kctx->as_nr
  49  * != KBASEP_AS_NR_INVALID).
  50  *
  51  * Return: Value in desired register
  52  */
  53 u32 kbase_reg_read(struct kbase_device *kbdev, u16 offset,
  54                                                 struct kbase_context *kctx);
  55
  56
  57 /**
  58  * kbase_gpu_interrupt - GPU interrupt handler
  59  * @kbdev: Kbase device pointer
  60  * @val:   The value of the GPU IRQ status register which triggered the call
  61  *
  62  * This function is called from the interrupt handler when a GPU irq is to be
  63  * handled.
  64  */
  65 void kbase_gpu_interrupt(struct kbase_device *kbdev, u32 val);
  66
  67 #endif /* _KBASE_DEVICE_INTERNAL_H_ */