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/*
* Copyright (c) 2011-2016, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#ifndef __PMU_COMMON_H__
#define __PMU_COMMON_H__
#define PMU_CMD_SUBMIT_PAYLOAD_PARAMS_FB_SIZE_UNUSED 0
struct falc_u64 {
u32 lo;
u32 hi;
};
struct falc_dma_addr {
u32 dma_base;
/*
* dma_base1 is 9-bit MSB for FB Base
* address for the transfer in FB after
* address using 49b FB address
*/
u16 dma_base1;
u8 dma_offset;
};
struct pmu_mem_v0 {
u32 dma_base;
u8 dma_offset;
u8 dma_idx;
};
struct pmu_mem_v1 {
u32 dma_base;
u8 dma_offset;
u8 dma_idx;
u16 fb_size;
};
struct pmu_mem_v2 {
struct falc_dma_addr dma_addr;
u8 dma_idx;
u16 fb_size;
};
struct pmu_mem_desc_v0 {
/*!
* Start address of memory surface that is being communicated to the falcon.
*/
struct falc_u64 dma_addr;
/*!
* Max allowed DMA transfer size (size of the memory surface). Accesses past
* this point may result in page faults and/or memory corruptions.
*/
u16 dma_sizemax;
/*!
* DMA channel index to be used when accessing this surface.
*/
u8 dma_idx;
};
struct pmu_dmem {
u16 size;
u32 offset;
};
/* Make sure size of this structure is a multiple of 4 bytes */
struct pmu_cmdline_args_v0 {
u32 cpu_freq_hz; /* Frequency of the clock driving PMU */
u32 falc_trace_size; /* falctrace buffer size (bytes) */
u32 falc_trace_dma_base; /* 256-byte block address */
u32 falc_trace_dma_idx; /* dmaIdx for DMA operations */
struct pmu_mem_v0 gc6_ctx; /* dmem offset of gc6 context */
};
struct pmu_cmdline_args_v1 {
u32 cpu_freq_hz; /* Frequency of the clock driving PMU */
u32 falc_trace_size; /* falctrace buffer size (bytes) */
u32 falc_trace_dma_base; /* 256-byte block address */
u32 falc_trace_dma_idx; /* dmaIdx for DMA operations */
u8 secure_mode;
struct pmu_mem_v1 gc6_ctx; /* dmem offset of gc6 context */
};
struct flcn_u64 {
u32 lo;
u32 hi;
};
#define nv_flcn_u64 flcn_u64
struct flcn_mem_desc_v0 {
struct flcn_u64 address;
u32 params;
};
#define nv_flcn_mem_desc flcn_mem_desc_v0
struct pmu_allocation_v0 {
u8 pad[3];
u8 fb_mem_use;
struct {
struct pmu_dmem dmem;
struct pmu_mem_v0 fb;
} alloc;
};
struct pmu_allocation_v1 {
struct {
struct pmu_dmem dmem;
struct pmu_mem_v1 fb;
} alloc;
};
struct pmu_allocation_v2 {
struct {
struct pmu_dmem dmem;
struct pmu_mem_desc_v0 fb;
} alloc;
};
struct pmu_allocation_v3 {
struct {
struct pmu_dmem dmem;
struct flcn_mem_desc_v0 fb;
} alloc;
};
#define nv_pmu_allocation pmu_allocation_v3
struct pmu_hdr {
u8 unit_id;
u8 size;
u8 ctrl_flags;
u8 seq_id;
};
#define nv_pmu_hdr pmu_hdr
typedef u8 flcn_status;
#define ALIGN_UP(v, gran) (((v) + ((gran) - 1)) & ~((gran)-1))
/*!
* Falcon PMU DMA's minimum size in bytes.
*/
#define PMU_DMA_MIN_READ_SIZE_BYTES 16
#define PMU_DMA_MIN_WRITE_SIZE_BYTES 4
#define PMU_FB_COPY_RW_ALIGNMENT \
(PMU_DMA_MIN_READ_SIZE_BYTES > PMU_DMA_MIN_WRITE_SIZE_BYTES ? \
PMU_DMA_MIN_READ_SIZE_BYTES : PMU_DMA_MIN_WRITE_SIZE_BYTES)
/*!
* Macros to make aligned versions of RM_PMU_XXX structures. PMU needs aligned
* data structures to issue DMA read/write operations.
*/
#define NV_PMU_MAKE_ALIGNED_STRUCT(name, size) \
union name##_aligned { \
struct name data; \
u8 pad[ALIGN_UP(sizeof(struct name), \
(PMU_FB_COPY_RW_ALIGNMENT))]; \
}
#define NV_PMU_MAKE_ALIGNED_UNION(name, size) \
union name##_aligned { \
union name data; \
u8 pad[ALIGN_UP(sizeof(union name), \
(PMU_FB_COPY_RW_ALIGNMENT))]; \
}
#define NV_UNSIGNED_ROUNDED_DIV(a, b) (((a) + ((b) / 2)) / (b))
#endif
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