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/*
* Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
* Author: Rob Clark <rob@ti.com>
* Andy Gross <andy.gross@ti.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef OMAP_DMM_PRIV_H
#define OMAP_DMM_PRIV_H
#define DMM_REVISION 0x000
#define DMM_HWINFO 0x004
#define DMM_LISA_HWINFO 0x008
#define DMM_DMM_SYSCONFIG 0x010
#define DMM_LISA_LOCK 0x01C
#define DMM_LISA_MAP__0 0x040
#define DMM_LISA_MAP__1 0x044
#define DMM_TILER_HWINFO 0x208
#define DMM_TILER_OR__0 0x220
#define DMM_TILER_OR__1 0x224
#define DMM_PAT_HWINFO 0x408
#define DMM_PAT_GEOMETRY 0x40C
#define DMM_PAT_CONFIG 0x410
#define DMM_PAT_VIEW__0 0x420
#define DMM_PAT_VIEW__1 0x424
#define DMM_PAT_VIEW_MAP__0 0x440
#define DMM_PAT_VIEW_MAP_BASE 0x460
#define DMM_PAT_IRQ_EOI 0x478
#define DMM_PAT_IRQSTATUS_RAW 0x480
#define DMM_PAT_IRQSTATUS 0x490
#define DMM_PAT_IRQENABLE_SET 0x4A0
#define DMM_PAT_IRQENABLE_CLR 0x4B0
#define DMM_PAT_STATUS__0 0x4C0
#define DMM_PAT_STATUS__1 0x4C4
#define DMM_PAT_STATUS__2 0x4C8
#define DMM_PAT_STATUS__3 0x4CC
#define DMM_PAT_DESCR__0 0x500
#define DMM_PAT_DESCR__1 0x510
#define DMM_PAT_DESCR__2 0x520
#define DMM_PAT_DESCR__3 0x530
#define DMM_PEG_HWINFO 0x608
#define DMM_PEG_PRIO 0x620
#define DMM_PEG_PRIO_PAT 0x640
#define DMM_IRQSTAT_DST (1<<0)
#define DMM_IRQSTAT_LST (1<<1)
#define DMM_IRQSTAT_ERR_INV_DSC (1<<2)
#define DMM_IRQSTAT_ERR_INV_DATA (1<<3)
#define DMM_IRQSTAT_ERR_UPD_AREA (1<<4)
#define DMM_IRQSTAT_ERR_UPD_CTRL (1<<5)
#define DMM_IRQSTAT_ERR_UPD_DATA (1<<6)
#define DMM_IRQSTAT_ERR_LUT_MISS (1<<7)
#define DMM_IRQSTAT_ERR_MASK (DMM_IRQSTAT_ERR_INV_DSC | \
DMM_IRQSTAT_ERR_INV_DATA | \
DMM_IRQSTAT_ERR_UPD_AREA | \
DMM_IRQSTAT_ERR_UPD_CTRL | \
DMM_IRQSTAT_ERR_UPD_DATA | \
DMM_IRQSTAT_ERR_LUT_MISS)
#define DMM_PATSTATUS_READY (1<<0)
#define DMM_PATSTATUS_VALID (1<<1)
#define DMM_PATSTATUS_RUN (1<<2)
#define DMM_PATSTATUS_DONE (1<<3)
#define DMM_PATSTATUS_LINKED (1<<4)
#define DMM_PATSTATUS_BYPASSED (1<<7)
#define DMM_PATSTATUS_ERR_INV_DESCR (1<<10)
#define DMM_PATSTATUS_ERR_INV_DATA (1<<11)
#define DMM_PATSTATUS_ERR_UPD_AREA (1<<12)
#define DMM_PATSTATUS_ERR_UPD_CTRL (1<<13)
#define DMM_PATSTATUS_ERR_UPD_DATA (1<<14)
#define DMM_PATSTATUS_ERR_ACCESS (1<<15)
/* note: don't treat DMM_PATSTATUS_ERR_ACCESS as an error */
#define DMM_PATSTATUS_ERR (DMM_PATSTATUS_ERR_INV_DESCR | \
DMM_PATSTATUS_ERR_INV_DATA | \
DMM_PATSTATUS_ERR_UPD_AREA | \
DMM_PATSTATUS_ERR_UPD_CTRL | \
DMM_PATSTATUS_ERR_UPD_DATA)
enum {
PAT_STATUS,
PAT_DESCR
};
struct pat_ctrl {
u32 start:4;
u32 dir:4;
u32 lut_id:8;
u32 sync:12;
u32 ini:4;
};
struct pat {
u32 next_pa;
struct pat_area area;
struct pat_ctrl ctrl;
u32 data_pa;
};
#define DMM_FIXED_RETRY_COUNT 1000
/* create refill buffer big enough to refill all slots, plus 3 descriptors..
* 3 descriptors is probably the worst-case for # of 2d-slices in a 1d area,
* but I guess you don't hit that worst case at the same time as full area
* refill
*/
#define DESCR_SIZE 128
#define REFILL_BUFFER_SIZE ((4 * 128 * 256) + (3 * DESCR_SIZE))
/* For OMAP5, a fixed offset is added to all Y coordinates for 1D buffers.
* This is used in programming to address the upper portion of the LUT
*/
#define OMAP5_LUT_OFFSET 128
struct dmm;
struct dmm_txn {
void *engine_handle;
struct tcm *tcm;
u8 *current_va;
dma_addr_t current_pa;
struct pat *last_pat;
};
struct refill_engine {
int id;
struct dmm *dmm;
struct tcm *tcm;
u8 *refill_va;
dma_addr_t refill_pa;
/* only one trans per engine for now */
struct dmm_txn txn;
bool async;
struct completion compl;
struct list_head idle_node;
};
struct dmm_platform_data {
u32 cpu_cache_flags;
};
struct dmm {
struct device *dev;
dma_addr_t phys_base;
void __iomem *base;
int irq;
struct page *dummy_page;
dma_addr_t dummy_pa;
void *refill_va;
dma_addr_t refill_pa;
/* refill engines */
wait_queue_head_t engine_queue;
struct list_head idle_head;
struct refill_engine *engines;
int num_engines;
atomic_t engine_counter;
/* container information */
int container_width;
int container_height;
int lut_width;
int lut_height;
int num_lut;
/* array of LUT - TCM containers */
struct tcm **tcm;
/* allocation list and lock */
struct list_head alloc_head;
const struct dmm_platform_data *plat_data;
bool dmm_workaround;
spinlock_t wa_lock;
u32 *wa_dma_data;
dma_addr_t wa_dma_handle;
struct dma_chan *wa_dma_chan;
};
#endif
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