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linux/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.c
Jonathan Marek 544d8b9615 drm/msm/dpu: update UBWC config for sm8150 and sm8250 
Update the UBWC registers to the right values for sm8150 and sm8250.

This removes broken dpu_hw_reset_ubwc, which doesn't work because the
"force blk offset to zero to access beginning of register region" hack is
copied from downstream, where mapped region starts 0x1000 below what is
used in the upstream driver.

Also simplifies the overly complicated change that was introduced in
e4f9bbe9f8 to work around dpu_hw_reset_ubwc being broken.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2020-07-31 06:46:16 -07:00

339 lines
9.0 KiB
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// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
*/
#include "dpu_hwio.h"
#include "dpu_hw_catalog.h"
#include "dpu_hw_top.h"
#include "dpu_kms.h"
#define SSPP_SPARE 0x28
#define FLD_SPLIT_DISPLAY_CMD BIT(1)
#define FLD_SMART_PANEL_FREE_RUN BIT(2)
#define FLD_INTF_1_SW_TRG_MUX BIT(4)
#define FLD_INTF_2_SW_TRG_MUX BIT(8)
#define FLD_TE_LINE_INTER_WATERLEVEL_MASK 0xFFFF
#define DANGER_STATUS 0x360
#define SAFE_STATUS 0x364
#define TE_LINE_INTERVAL 0x3F4
#define TRAFFIC_SHAPER_EN BIT(31)
#define TRAFFIC_SHAPER_RD_CLIENT(num) (0x030 + (num * 4))
#define TRAFFIC_SHAPER_WR_CLIENT(num) (0x060 + (num * 4))
#define TRAFFIC_SHAPER_FIXPOINT_FACTOR 4
#define MDP_WD_TIMER_0_CTL 0x380
#define MDP_WD_TIMER_0_CTL2 0x384
#define MDP_WD_TIMER_0_LOAD_VALUE 0x388
#define MDP_WD_TIMER_1_CTL 0x390
#define MDP_WD_TIMER_1_CTL2 0x394
#define MDP_WD_TIMER_1_LOAD_VALUE 0x398
#define MDP_WD_TIMER_2_CTL 0x420
#define MDP_WD_TIMER_2_CTL2 0x424
#define MDP_WD_TIMER_2_LOAD_VALUE 0x428
#define MDP_WD_TIMER_3_CTL 0x430
#define MDP_WD_TIMER_3_CTL2 0x434
#define MDP_WD_TIMER_3_LOAD_VALUE 0x438
#define MDP_WD_TIMER_4_CTL 0x440
#define MDP_WD_TIMER_4_CTL2 0x444
#define MDP_WD_TIMER_4_LOAD_VALUE 0x448
#define MDP_TICK_COUNT 16
#define XO_CLK_RATE 19200
#define MS_TICKS_IN_SEC 1000
#define CALCULATE_WD_LOAD_VALUE(fps) \
((uint32_t)((MS_TICKS_IN_SEC * XO_CLK_RATE)/(MDP_TICK_COUNT * fps)))
#define DCE_SEL 0x450
static void dpu_hw_setup_split_pipe(struct dpu_hw_mdp *mdp,
struct split_pipe_cfg *cfg)
{
struct dpu_hw_blk_reg_map *c;
u32 upper_pipe = 0;
u32 lower_pipe = 0;
if (!mdp || !cfg)
return;
c = &mdp->hw;
if (cfg->en) {
if (cfg->mode == INTF_MODE_CMD) {
lower_pipe = FLD_SPLIT_DISPLAY_CMD;
/* interface controlling sw trigger */
if (cfg->intf == INTF_2)
lower_pipe |= FLD_INTF_1_SW_TRG_MUX;
else
lower_pipe |= FLD_INTF_2_SW_TRG_MUX;
upper_pipe = lower_pipe;
} else {
if (cfg->intf == INTF_2) {
lower_pipe = FLD_INTF_1_SW_TRG_MUX;
upper_pipe = FLD_INTF_2_SW_TRG_MUX;
} else {
lower_pipe = FLD_INTF_2_SW_TRG_MUX;
upper_pipe = FLD_INTF_1_SW_TRG_MUX;
}
}
}
DPU_REG_WRITE(c, SSPP_SPARE, cfg->split_flush_en ? 0x1 : 0x0);
DPU_REG_WRITE(c, SPLIT_DISPLAY_LOWER_PIPE_CTRL, lower_pipe);
DPU_REG_WRITE(c, SPLIT_DISPLAY_UPPER_PIPE_CTRL, upper_pipe);
DPU_REG_WRITE(c, SPLIT_DISPLAY_EN, cfg->en & 0x1);
}
static bool dpu_hw_setup_clk_force_ctrl(struct dpu_hw_mdp *mdp,
enum dpu_clk_ctrl_type clk_ctrl, bool enable)
{
struct dpu_hw_blk_reg_map *c;
u32 reg_off, bit_off;
u32 reg_val, new_val;
bool clk_forced_on;
if (!mdp)
return false;
c = &mdp->hw;
if (clk_ctrl <= DPU_CLK_CTRL_NONE || clk_ctrl >= DPU_CLK_CTRL_MAX)
return false;
reg_off = mdp->caps->clk_ctrls[clk_ctrl].reg_off;
bit_off = mdp->caps->clk_ctrls[clk_ctrl].bit_off;
reg_val = DPU_REG_READ(c, reg_off);
if (enable)
new_val = reg_val | BIT(bit_off);
else
new_val = reg_val & ~BIT(bit_off);
DPU_REG_WRITE(c, reg_off, new_val);
clk_forced_on = !(reg_val & BIT(bit_off));
return clk_forced_on;
}
static void dpu_hw_get_danger_status(struct dpu_hw_mdp *mdp,
struct dpu_danger_safe_status *status)
{
struct dpu_hw_blk_reg_map *c;
u32 value;
if (!mdp || !status)
return;
c = &mdp->hw;
value = DPU_REG_READ(c, DANGER_STATUS);
status->mdp = (value >> 0) & 0x3;
status->sspp[SSPP_VIG0] = (value >> 4) & 0x3;
status->sspp[SSPP_VIG1] = (value >> 6) & 0x3;
status->sspp[SSPP_VIG2] = (value >> 8) & 0x3;
status->sspp[SSPP_VIG3] = (value >> 10) & 0x3;
status->sspp[SSPP_RGB0] = (value >> 12) & 0x3;
status->sspp[SSPP_RGB1] = (value >> 14) & 0x3;
status->sspp[SSPP_RGB2] = (value >> 16) & 0x3;
status->sspp[SSPP_RGB3] = (value >> 18) & 0x3;
status->sspp[SSPP_DMA0] = (value >> 20) & 0x3;
status->sspp[SSPP_DMA1] = (value >> 22) & 0x3;
status->sspp[SSPP_DMA2] = (value >> 28) & 0x3;
status->sspp[SSPP_DMA3] = (value >> 30) & 0x3;
status->sspp[SSPP_CURSOR0] = (value >> 24) & 0x3;
status->sspp[SSPP_CURSOR1] = (value >> 26) & 0x3;
}
static void dpu_hw_setup_vsync_source(struct dpu_hw_mdp *mdp,
struct dpu_vsync_source_cfg *cfg)
{
struct dpu_hw_blk_reg_map *c;
u32 reg, wd_load_value, wd_ctl, wd_ctl2, i;
static const u32 pp_offset[PINGPONG_MAX] = {0xC, 0x8, 0x4, 0x13, 0x18};
if (!mdp || !cfg || (cfg->pp_count > ARRAY_SIZE(cfg->ppnumber)))
return;
c = &mdp->hw;
reg = DPU_REG_READ(c, MDP_VSYNC_SEL);
for (i = 0; i < cfg->pp_count; i++) {
int pp_idx = cfg->ppnumber[i] - PINGPONG_0;
if (pp_idx >= ARRAY_SIZE(pp_offset))
continue;
reg &= ~(0xf << pp_offset[pp_idx]);
reg |= (cfg->vsync_source & 0xf) << pp_offset[pp_idx];
}
DPU_REG_WRITE(c, MDP_VSYNC_SEL, reg);
if (cfg->vsync_source >= DPU_VSYNC_SOURCE_WD_TIMER_4 &&
cfg->vsync_source <= DPU_VSYNC_SOURCE_WD_TIMER_0) {
switch (cfg->vsync_source) {
case DPU_VSYNC_SOURCE_WD_TIMER_4:
wd_load_value = MDP_WD_TIMER_4_LOAD_VALUE;
wd_ctl = MDP_WD_TIMER_4_CTL;
wd_ctl2 = MDP_WD_TIMER_4_CTL2;
break;
case DPU_VSYNC_SOURCE_WD_TIMER_3:
wd_load_value = MDP_WD_TIMER_3_LOAD_VALUE;
wd_ctl = MDP_WD_TIMER_3_CTL;
wd_ctl2 = MDP_WD_TIMER_3_CTL2;
break;
case DPU_VSYNC_SOURCE_WD_TIMER_2:
wd_load_value = MDP_WD_TIMER_2_LOAD_VALUE;
wd_ctl = MDP_WD_TIMER_2_CTL;
wd_ctl2 = MDP_WD_TIMER_2_CTL2;
break;
case DPU_VSYNC_SOURCE_WD_TIMER_1:
wd_load_value = MDP_WD_TIMER_1_LOAD_VALUE;
wd_ctl = MDP_WD_TIMER_1_CTL;
wd_ctl2 = MDP_WD_TIMER_1_CTL2;
break;
case DPU_VSYNC_SOURCE_WD_TIMER_0:
default:
wd_load_value = MDP_WD_TIMER_0_LOAD_VALUE;
wd_ctl = MDP_WD_TIMER_0_CTL;
wd_ctl2 = MDP_WD_TIMER_0_CTL2;
break;
}
DPU_REG_WRITE(c, wd_load_value,
CALCULATE_WD_LOAD_VALUE(cfg->frame_rate));
DPU_REG_WRITE(c, wd_ctl, BIT(0)); /* clear timer */
reg = DPU_REG_READ(c, wd_ctl2);
reg |= BIT(8); /* enable heartbeat timer */
reg |= BIT(0); /* enable WD timer */
DPU_REG_WRITE(c, wd_ctl2, reg);
/* make sure that timers are enabled/disabled for vsync state */
wmb();
}
}
static void dpu_hw_get_safe_status(struct dpu_hw_mdp *mdp,
struct dpu_danger_safe_status *status)
{
struct dpu_hw_blk_reg_map *c;
u32 value;
if (!mdp || !status)
return;
c = &mdp->hw;
value = DPU_REG_READ(c, SAFE_STATUS);
status->mdp = (value >> 0) & 0x1;
status->sspp[SSPP_VIG0] = (value >> 4) & 0x1;
status->sspp[SSPP_VIG1] = (value >> 6) & 0x1;
status->sspp[SSPP_VIG2] = (value >> 8) & 0x1;
status->sspp[SSPP_VIG3] = (value >> 10) & 0x1;
status->sspp[SSPP_RGB0] = (value >> 12) & 0x1;
status->sspp[SSPP_RGB1] = (value >> 14) & 0x1;
status->sspp[SSPP_RGB2] = (value >> 16) & 0x1;
status->sspp[SSPP_RGB3] = (value >> 18) & 0x1;
status->sspp[SSPP_DMA0] = (value >> 20) & 0x1;
status->sspp[SSPP_DMA1] = (value >> 22) & 0x1;
status->sspp[SSPP_DMA2] = (value >> 28) & 0x1;
status->sspp[SSPP_DMA3] = (value >> 30) & 0x1;
status->sspp[SSPP_CURSOR0] = (value >> 24) & 0x1;
status->sspp[SSPP_CURSOR1] = (value >> 26) & 0x1;
}
static void dpu_hw_intf_audio_select(struct dpu_hw_mdp *mdp)
{
struct dpu_hw_blk_reg_map *c;
if (!mdp)
return;
c = &mdp->hw;
DPU_REG_WRITE(c, HDMI_DP_CORE_SELECT, 0x1);
}
static void _setup_mdp_ops(struct dpu_hw_mdp_ops *ops,
unsigned long cap)
{
ops->setup_split_pipe = dpu_hw_setup_split_pipe;
ops->setup_clk_force_ctrl = dpu_hw_setup_clk_force_ctrl;
ops->get_danger_status = dpu_hw_get_danger_status;
ops->setup_vsync_source = dpu_hw_setup_vsync_source;
ops->get_safe_status = dpu_hw_get_safe_status;
ops->intf_audio_select = dpu_hw_intf_audio_select;
}
static const struct dpu_mdp_cfg *_top_offset(enum dpu_mdp mdp,
const struct dpu_mdss_cfg *m,
void __iomem *addr,
struct dpu_hw_blk_reg_map *b)
{
int i;
if (!m || !addr || !b)
return ERR_PTR(-EINVAL);
for (i = 0; i < m->mdp_count; i++) {
if (mdp == m->mdp[i].id) {
b->base_off = addr;
b->blk_off = m->mdp[i].base;
b->length = m->mdp[i].len;
b->hwversion = m->hwversion;
b->log_mask = DPU_DBG_MASK_TOP;
return &m->mdp[i];
}
}
return ERR_PTR(-EINVAL);
}
static struct dpu_hw_blk_ops dpu_hw_ops;
struct dpu_hw_mdp *dpu_hw_mdptop_init(enum dpu_mdp idx,
void __iomem *addr,
const struct dpu_mdss_cfg *m)
{
struct dpu_hw_mdp *mdp;
const struct dpu_mdp_cfg *cfg;
if (!addr || !m)
return ERR_PTR(-EINVAL);
mdp = kzalloc(sizeof(*mdp), GFP_KERNEL);
if (!mdp)
return ERR_PTR(-ENOMEM);
cfg = _top_offset(idx, m, addr, &mdp->hw);
if (IS_ERR_OR_NULL(cfg)) {
kfree(mdp);
return ERR_PTR(-EINVAL);
}
/*
* Assign ops
*/
mdp->idx = idx;
mdp->caps = cfg;
_setup_mdp_ops(&mdp->ops, mdp->caps->features);
dpu_hw_blk_init(&mdp->base, DPU_HW_BLK_TOP, idx, &dpu_hw_ops);
return mdp;
}
void dpu_hw_mdp_destroy(struct dpu_hw_mdp *mdp)
{
if (mdp)
dpu_hw_blk_destroy(&mdp->base);
kfree(mdp);
}
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