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common
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ipi.h

ipi.h 2.4 KB
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  1. /*
    2. 

  2.  * Copyright (c) 2018, Xilinx, Inc. All rights reserved.
    3. 

  3.  *
    4. 

  4.  * SPDX-License-Identifier: BSD-3-Clause
    5. 

  5.  */
    6. 

  6. 

  7. /* Xilinx IPI management configuration data and macros */
    8. 

  8. 

  9. #ifndef IPI_H
    10. 

  10. #define IPI_H
    11. 

  11. 

  12. #include <stdint.h>
    13. 

  13. 

  14. /*********************************************************************
    15. 

  15.  * IPI mailbox status macros
    16. 

  16.  ********************************************************************/
    17. 

  17. #define IPI_MB_STATUS_IDLE		(0U)
    18. 

  18. #define IPI_MB_STATUS_SEND_PENDING	(1U)
    19. 

  19. #define IPI_MB_STATUS_RECV_PENDING	(2U)
    20. 

  20. 

  21. /*********************************************************************
    22. 

  22.  * IPI mailbox call is secure or not macros
    23. 

  23.  ********************************************************************/
    24. 

  24. #define IPI_MB_CALL_NOTSECURE	(0U)
    25. 

  25. #define IPI_MB_CALL_SECURE	(1U)
    26. 

  26. 

  27. /*********************************************************************
    28. 

  28.  * IPI secure check
    29. 

  29.  ********************************************************************/
    30. 

  30. #define IPI_SECURE_MASK  (0x1U)
    31. 

  31. #define IPI_IS_SECURE(I) ((ipi_table[(I)].secure_only & \
    32. 

  32. 			   IPI_SECURE_MASK) ? 1 : 0)
    33. 

  33. 

  34. /*********************************************************************
    35. 

  35.  * Struct definitions
    36. 

  36.  ********************************************************************/
    37. 

  37. 

  38. /* structure to maintain IPI configuration information */
    39. 

  39. struct ipi_config {
    40. 

  40. 	unsigned int ipi_bit_mask;
    41. 

  41. 	unsigned int ipi_reg_base;
    42. 

  42. 	unsigned char secure_only;
    43. 

  43. };
    44. 

  44. 

  45. /*********************************************************************
    46. 

  46.  * IPI APIs declarations
    47. 

  47.  ********************************************************************/
    48. 

  48. 

  49. /* Initialize IPI configuration table */
    50. 

  50. void ipi_config_table_init(const struct ipi_config *ipi_config_table,
    51. 

  51. 			   uint32_t total_ipi);
    52. 

  52. 

  53. /* Validate IPI mailbox access */
    54. 

  54. int ipi_mb_validate(uint32_t local, uint32_t remote, unsigned int is_secure);
    55. 

  55. 

  56. /* Open the IPI mailbox */
    57. 

  57. void ipi_mb_open(uint32_t local, uint32_t remote);
    58. 

  58. 

  59. /* Release the IPI mailbox */
    60. 

  60. void ipi_mb_release(uint32_t local, uint32_t remote);
    61. 

  61. 

  62. /* Enquire IPI mailbox status */
    63. 

  63. int ipi_mb_enquire_status(uint32_t local, uint32_t remote);
    64. 

  64. 

  65. /* Trigger notification on the IPI mailbox */
    66. 

  66. void ipi_mb_notify(uint32_t local, uint32_t remote, uint32_t is_blocking);
    67. 

  67. 

  68. /* Ack IPI mailbox notification */
    69. 

  69. void ipi_mb_ack(uint32_t local, uint32_t remote);
    70. 

  70. 

  71. /* Disable IPI mailbox notification interrupt */
    72. 

  72. void ipi_mb_disable_irq(uint32_t local, uint32_t remote);
    73. 

  73. 

  74. /* Enable IPI mailbox notification interrupt */
    75. 

  75. void ipi_mb_enable_irq(uint32_t local, uint32_t remote);
    76. 

  76. 

  77. #endif /* IPI_H */
    78.