^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: MIT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright © 2014-2018 Broadcom
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright © 2019 Collabora ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #ifndef _PANFROST_DRM_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #define _PANFROST_DRM_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include "drm.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #if defined(__cplusplus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) extern "C" {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define DRM_PANFROST_SUBMIT 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define DRM_PANFROST_WAIT_BO 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define DRM_PANFROST_CREATE_BO 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define DRM_PANFROST_MMAP_BO 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define DRM_PANFROST_GET_PARAM 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define DRM_PANFROST_GET_BO_OFFSET 0x05
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define DRM_PANFROST_PERFCNT_ENABLE 0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define DRM_PANFROST_PERFCNT_DUMP 0x07
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define DRM_PANFROST_MADVISE 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define DRM_IOCTL_PANFROST_SUBMIT DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_SUBMIT, struct drm_panfrost_submit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define DRM_IOCTL_PANFROST_WAIT_BO DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_WAIT_BO, struct drm_panfrost_wait_bo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define DRM_IOCTL_PANFROST_CREATE_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_CREATE_BO, struct drm_panfrost_create_bo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define DRM_IOCTL_PANFROST_MMAP_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_MMAP_BO, struct drm_panfrost_mmap_bo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define DRM_IOCTL_PANFROST_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_GET_PARAM, struct drm_panfrost_get_param)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define DRM_IOCTL_PANFROST_GET_BO_OFFSET DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_GET_BO_OFFSET, struct drm_panfrost_get_bo_offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define DRM_IOCTL_PANFROST_MADVISE DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_MADVISE, struct drm_panfrost_madvise)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * Unstable ioctl(s): only exposed when the unsafe unstable_ioctls module
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * param is set to true.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * All these ioctl(s) are subject to deprecation, so please don't rely on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * them for anything but debugging purpose.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define DRM_IOCTL_PANFROST_PERFCNT_ENABLE DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_PERFCNT_ENABLE, struct drm_panfrost_perfcnt_enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define DRM_IOCTL_PANFROST_PERFCNT_DUMP DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_PERFCNT_DUMP, struct drm_panfrost_perfcnt_dump)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define PANFROST_JD_REQ_FS (1 << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) * struct drm_panfrost_submit - ioctl argument for submitting commands to the 3D
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) * engine.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * This asks the kernel to have the GPU execute a render command list.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) struct drm_panfrost_submit {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) /** Address to GPU mapping of job descriptor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) __u64 jc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) /** An optional array of sync objects to wait on before starting this job. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) __u64 in_syncs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) /** Number of sync objects to wait on before starting this job. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) __u32 in_sync_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) /** An optional sync object to place the completion fence in. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) __u32 out_sync;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) /** Pointer to a u32 array of the BOs that are referenced by the job. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) __u64 bo_handles;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) /** Number of BO handles passed in (size is that times 4). */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) __u32 bo_handle_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) /** A combination of PANFROST_JD_REQ_* */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) __u32 requirements;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) * struct drm_panfrost_wait_bo - ioctl argument for waiting for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) * completion of the last DRM_PANFROST_SUBMIT on a BO.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * This is useful for cases where multiple processes might be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * rendering to a BO and you want to wait for all rendering to be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * completed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct drm_panfrost_wait_bo {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) __u32 handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) __u32 pad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) __s64 timeout_ns; /* absolute */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #define PANFROST_BO_NOEXEC 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) #define PANFROST_BO_HEAP 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * struct drm_panfrost_create_bo - ioctl argument for creating Panfrost BOs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) * There are currently no values for the flags argument, but it may be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * used in a future extension.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct drm_panfrost_create_bo {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) __u32 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) __u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) /** Returned GEM handle for the BO. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) __u32 handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) /* Pad, must be zero-filled. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) __u32 pad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * Returned offset for the BO in the GPU address space. This offset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) * is private to the DRM fd and is valid for the lifetime of the GEM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) * handle.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) * This offset value will always be nonzero, since various HW
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) * units treat 0 specially.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) __u64 offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) * struct drm_panfrost_mmap_bo - ioctl argument for mapping Panfrost BOs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) * This doesn't actually perform an mmap. Instead, it returns the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) * offset you need to use in an mmap on the DRM device node. This
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) * means that tools like valgrind end up knowing about the mapped
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) * memory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * There are currently no values for the flags argument, but it may be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) * used in a future extension.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) struct drm_panfrost_mmap_bo {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) /** Handle for the object being mapped. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) __u32 handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) __u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) /** offset into the drm node to use for subsequent mmap call. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) __u64 offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) enum drm_panfrost_param {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) DRM_PANFROST_PARAM_GPU_PROD_ID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) DRM_PANFROST_PARAM_GPU_REVISION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) DRM_PANFROST_PARAM_SHADER_PRESENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) DRM_PANFROST_PARAM_TILER_PRESENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) DRM_PANFROST_PARAM_L2_PRESENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) DRM_PANFROST_PARAM_STACK_PRESENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) DRM_PANFROST_PARAM_AS_PRESENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) DRM_PANFROST_PARAM_JS_PRESENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) DRM_PANFROST_PARAM_L2_FEATURES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) DRM_PANFROST_PARAM_CORE_FEATURES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) DRM_PANFROST_PARAM_TILER_FEATURES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) DRM_PANFROST_PARAM_MEM_FEATURES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) DRM_PANFROST_PARAM_MMU_FEATURES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) DRM_PANFROST_PARAM_THREAD_FEATURES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) DRM_PANFROST_PARAM_MAX_THREADS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) DRM_PANFROST_PARAM_THREAD_MAX_WORKGROUP_SZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) DRM_PANFROST_PARAM_THREAD_MAX_BARRIER_SZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) DRM_PANFROST_PARAM_COHERENCY_FEATURES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) DRM_PANFROST_PARAM_TEXTURE_FEATURES0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) DRM_PANFROST_PARAM_TEXTURE_FEATURES1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) DRM_PANFROST_PARAM_TEXTURE_FEATURES2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) DRM_PANFROST_PARAM_TEXTURE_FEATURES3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) DRM_PANFROST_PARAM_JS_FEATURES0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) DRM_PANFROST_PARAM_JS_FEATURES1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) DRM_PANFROST_PARAM_JS_FEATURES2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) DRM_PANFROST_PARAM_JS_FEATURES3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) DRM_PANFROST_PARAM_JS_FEATURES4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) DRM_PANFROST_PARAM_JS_FEATURES5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) DRM_PANFROST_PARAM_JS_FEATURES6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) DRM_PANFROST_PARAM_JS_FEATURES7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) DRM_PANFROST_PARAM_JS_FEATURES8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) DRM_PANFROST_PARAM_JS_FEATURES9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) DRM_PANFROST_PARAM_JS_FEATURES10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) DRM_PANFROST_PARAM_JS_FEATURES11,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) DRM_PANFROST_PARAM_JS_FEATURES12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) DRM_PANFROST_PARAM_JS_FEATURES13,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) DRM_PANFROST_PARAM_JS_FEATURES14,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) DRM_PANFROST_PARAM_JS_FEATURES15,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) DRM_PANFROST_PARAM_NR_CORE_GROUPS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) DRM_PANFROST_PARAM_THREAD_TLS_ALLOC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) struct drm_panfrost_get_param {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) __u32 param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) __u32 pad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) __u64 value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) * Returns the offset for the BO in the GPU address space for this DRM fd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) * This is the same value returned by drm_panfrost_create_bo, if that was called
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) * from this DRM fd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) struct drm_panfrost_get_bo_offset {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) __u32 handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) __u32 pad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) __u64 offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) struct drm_panfrost_perfcnt_enable {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) __u32 enable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) * On bifrost we have 2 sets of counters, this parameter defines the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) * one to track.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) __u32 counterset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) struct drm_panfrost_perfcnt_dump {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) __u64 buf_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) /* madvise provides a way to tell the kernel in case a buffers contents
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) * can be discarded under memory pressure, which is useful for userspace
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) * bo cache where we want to optimistically hold on to buffer allocate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) * and potential mmap, but allow the pages to be discarded under memory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) * pressure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) * Typical usage would involve madvise(DONTNEED) when buffer enters BO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) * cache, and madvise(WILLNEED) if trying to recycle buffer from BO cache.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) * In the WILLNEED case, 'retained' indicates to userspace whether the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) * backing pages still exist.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) #define PANFROST_MADV_WILLNEED 0 /* backing pages are needed, status returned in 'retained' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) #define PANFROST_MADV_DONTNEED 1 /* backing pages not needed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) struct drm_panfrost_madvise {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) __u32 handle; /* in, GEM handle */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) __u32 madv; /* in, PANFROST_MADV_x */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) __u32 retained; /* out, whether backing store still exists */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) #if defined(__cplusplus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) #endif /* _PANFROST_DRM_H_ */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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