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/*
* Copyright © 2021 Google, 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 (including the next
* paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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 IGT_MSM_H
#define IGT_MSM_H
#include "ioctl_wrappers.h"
#include "msm_drm.h"
/**
* msm_device:
* @fd: the drm device file descriptor
* @gen: the device major generation (ie. 2 for a2xx, etc)
*
* Helper container for device and device related parameters used by tests.
*/
struct msm_device {
int fd;
unsigned gen;
};
struct msm_device *igt_msm_dev_open(void);
void igt_msm_dev_close(struct msm_device *dev);
/**
* msm_bo:
* @dev: the device the BO is allocated from
* @handle: the BO's GEM handle
* @size: the BO's size
* @map: the BO's memory mapping (if mapped)
* @iova: the BO's GPU address
*
* Helper wrapper for a GEM buffer object.
*/
struct msm_bo {
struct msm_device *dev;
int handle;
uint32_t size;
void *map;
uint64_t iova;
};
struct msm_bo *igt_msm_bo_new(struct msm_device *dev, size_t size, uint32_t flags);
void igt_msm_bo_free(struct msm_bo *bo);
void *igt_msm_bo_map(struct msm_bo *bo);
/**
* msm_pipe:
* @dev: the device the pipe is allocated from
* @pipe: the pipe id
* @submitqueue_id: the submitqueue id
*
* Helper wrapper for a submitqueue for cmdstream submission.
*/
struct msm_pipe {
struct msm_device *dev;
uint32_t pipe;
uint32_t submitqueue_id;
};
struct msm_pipe *igt_msm_pipe_open(struct msm_device *dev, uint32_t prio);
void igt_msm_pipe_close(struct msm_pipe *pipe);
/*
* Helpers for cmdstream building:
*/
enum adreno_pm4_packet_type {
CP_TYPE0_PKT = 0,
CP_TYPE1_PKT = 0x40000000,
CP_TYPE2_PKT = 0x80000000,
CP_TYPE3_PKT = 0xc0000000,
CP_TYPE4_PKT = 0x40000000,
CP_TYPE7_PKT = 0x70000000,
};
enum adreno_pm4_type3_packets {
CP_NOP = 16,
CP_WAIT_MEM_GTE = 20,
CP_WAIT_REG_MEM = 60,
CP_MEM_WRITE = 61,
CP_MEM_TO_MEM = 115,
};
static inline unsigned
pm4_odd_parity_bit(unsigned val)
{
/* See: http://graphics.stanford.edu/~seander/bithacks.html#ParityParallel
* note that we want odd parity so 0x6996 is inverted.
*/
val ^= val >> 16;
val ^= val >> 8;
val ^= val >> 4;
val &= 0xf;
return (~0x6996 >> val) & 1;
}
static inline uint32_t
pm4_pkt0_hdr(uint16_t regindx, uint16_t cnt)
{
return CP_TYPE0_PKT | ((cnt - 1) << 16) | (regindx & 0x7fff);
}
static inline uint32_t
pm4_pkt3_hdr(uint8_t opcode, uint16_t cnt)
{
return CP_TYPE3_PKT | ((cnt - 1) << 16) | ((opcode & 0xff) << 8);
}
static inline uint32_t
pm4_pkt4_hdr(uint16_t regindx, uint16_t cnt)
{
return CP_TYPE4_PKT | cnt | (pm4_odd_parity_bit(cnt) << 7) |
((regindx & 0x3ffff) << 8) |
((pm4_odd_parity_bit(regindx) << 27));
}
static inline uint32_t
pm4_pkt7_hdr(uint8_t opcode, uint16_t cnt)
{
return CP_TYPE7_PKT | cnt | (pm4_odd_parity_bit(cnt) << 15) |
((opcode & 0x7f) << 16) |
((pm4_odd_parity_bit(opcode) << 23));
}
/**
* msm_cmd:
* @pipe: the submitqueue to submit cmdstream against
* @cmdstream_bo: the backing cmdstream buffer object
* @cur: pointer to current position in cmdstream
*
* Helper for building cmdstream and cmdstream submission
*/
struct msm_cmd {
struct msm_pipe *pipe;
struct msm_bo *cmdstream_bo;
uint32_t *cur;
uint32_t nr_bos;
struct msm_bo *bos[8];
};
struct msm_cmd *igt_msm_cmd_new(struct msm_pipe *pipe, size_t size);
int igt_msm_cmd_submit(struct msm_cmd *cmd);
void igt_msm_cmd_free(struct msm_cmd *cmd);
static inline void
msm_cmd_emit(struct msm_cmd *cmd, uint32_t dword)
{
*(cmd->cur++) = dword;
}
static inline void
msm_cmd_pkt7(struct msm_cmd *cmd, uint8_t opcode, uint16_t cnt)
{
msm_cmd_emit(cmd, pm4_pkt7_hdr(opcode, cnt));
}
void __igt_msm_append_bo(struct msm_cmd *cmd, struct msm_bo *bo);
static inline void
msm_cmd_bo(struct msm_cmd *cmd, struct msm_bo *bo, uint32_t offset)
{
uint64_t addr = bo->iova + offset;
__igt_msm_append_bo(cmd, bo);
msm_cmd_emit(cmd, lower_32_bits(addr));
msm_cmd_emit(cmd, upper_32_bits(addr));
}
#define U642VOID(x) ((void *)(uintptr_t)(x))
#define VOID2U64(x) ((uint64_t)(uintptr_t)(x))
#endif /* IGT_MSM_H */
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