[PATCH v2 1/7] drm/msm/dpu: move hw_inf encoder baseclass

Jeykumar Sankaran
2019-02-14T01:19:10Z

Both video and command physical encoders will have
a hw interface assigned to it. So there is really no
need to track the hw block in specific encoder subclass.

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h | 4 +-
.../gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 125 +++++++++------------
2 files changed, 52 insertions(+), 77 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
index 44e6f8b6..acd5956 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
@@ -201,6 +201,7 @@ struct dpu_encoder_irq {
* @hw_mdptop: Hardware interface to the top registers
* @hw_ctl: Hardware interface to the ctl registers
* @hw_pp: Hardware interface to the ping pong registers
+ * @hw_intf: Hardware interface to the intf registers
* @dpu_kms: Pointer to the dpu_kms top level
* @cached_mode: DRM mode cached at mode_set time, acted on in enable
* @enabled: Whether the encoder has enabled and running a mode
@@ -229,6 +230,7 @@ struct dpu_encoder_phys {
struct dpu_hw_mdp *hw_mdptop;
struct dpu_hw_ctl *hw_ctl;
struct dpu_hw_pingpong *hw_pp;
+ struct dpu_hw_intf *hw_intf;
struct dpu_kms *dpu_kms;
struct drm_display_mode cached_mode;
enum dpu_enc_split_role split_role;
@@ -255,12 +257,10 @@ static inline int dpu_encoder_phys_inc_pending(struct dpu_encoder_phys *phys)
* struct dpu_encoder_phys_vid - sub-class of dpu_encoder_phys to handle video
* mode specific operations
* @base: Baseclass physical encoder structure
- * @hw_intf: Hardware interface to the intf registers
* @timing_params: Current timing parameter
*/
struct dpu_encoder_phys_vid {
struct dpu_encoder_phys base;
- struct dpu_hw_intf *hw_intf;
struct intf_timing_params timing_params;
};

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
index acdab5b0..e326395 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
@@ -18,14 +18,14 @@
#include "dpu_trace.h"

#define DPU_DEBUG_VIDENC(e, fmt, ...) DPU_DEBUG("enc%d intf%d " fmt, \
- (e) && (e)->base.parent ? \
- (e)->base.parent->base.id : -1, \
+ (e) && (e)->parent ? \
+ (e)->parent->base.id : -1, \
(e) && (e)->hw_intf ? \
(e)->hw_intf->idx - INTF_0 : -1, ##__VA_ARGS__)

#define DPU_ERROR_VIDENC(e, fmt, ...) DPU_ERROR("enc%d intf%d " fmt, \
- (e) && (e)->base.parent ? \
- (e)->base.parent->base.id : -1, \
+ (e) && (e)->parent ? \
+ (e)->parent->base.id : -1, \
(e) && (e)->hw_intf ? \
(e)->hw_intf->idx - INTF_0 : -1, ##__VA_ARGS__)

@@ -44,7 +44,7 @@ static bool dpu_encoder_phys_vid_is_master(
}

static void drm_mode_to_intf_timing_params(
- const struct dpu_encoder_phys_vid *vid_enc,
+ const struct dpu_encoder_phys *phys_enc,
const struct drm_display_mode *mode,
struct intf_timing_params *timing)
{
@@ -92,7 +92,7 @@ static void drm_mode_to_intf_timing_params(
timing->hsync_skew = mode->hskew;

/* DSI controller cannot handle active-low sync signals. */
- if (vid_enc->hw_intf->cap->type == INTF_DSI) {
+ if (phys_enc->hw_intf->cap->type == INTF_DSI) {
timing->hsync_polarity = 0;
timing->vsync_polarity = 0;
}
@@ -143,11 +143,11 @@ static u32 get_vertical_total(const struct intf_timing_params *timing)
* lines based on the chip worst case latencies.
*/
static u32 programmable_fetch_get_num_lines(
- struct dpu_encoder_phys_vid *vid_enc,
+ struct dpu_encoder_phys *phys_enc,
const struct intf_timing_params *timing)
{
u32 worst_case_needed_lines =
- vid_enc->hw_intf->cap->prog_fetch_lines_worst_case;
+ phys_enc->hw_intf->cap->prog_fetch_lines_worst_case;
u32 start_of_frame_lines =
timing->v_back_porch + timing->vsync_pulse_width;
u32 needed_vfp_lines = worst_case_needed_lines - start_of_frame_lines;
@@ -155,26 +155,26 @@ static u32 programmable_fetch_get_num_lines(

/* Fetch must be outside active lines, otherwise undefined. */
if (start_of_frame_lines >= worst_case_needed_lines) {
- DPU_DEBUG_VIDENC(vid_enc,
+ DPU_DEBUG_VIDENC(phys_enc,
"prog fetch is not needed, large vbp+vsw\n");
actual_vfp_lines = 0;
} else if (timing->v_front_porch < needed_vfp_lines) {
/* Warn fetch needed, but not enough porch in panel config */
pr_warn_once
("low vbp+vfp may lead to perf issues in some cases\n");
- DPU_DEBUG_VIDENC(vid_enc,
+ DPU_DEBUG_VIDENC(phys_enc,
"less vfp than fetch req, using entire vfp\n");
actual_vfp_lines = timing->v_front_porch;
} else {
- DPU_DEBUG_VIDENC(vid_enc, "room in vfp for needed prefetch\n");
+ DPU_DEBUG_VIDENC(phys_enc, "room in vfp for needed prefetch\n");
actual_vfp_lines = needed_vfp_lines;
}

- DPU_DEBUG_VIDENC(vid_enc,
+ DPU_DEBUG_VIDENC(phys_enc,
"v_front_porch %u v_back_porch %u vsync_pulse_width %u\n",
timing->v_front_porch, timing->v_back_porch,
timing->vsync_pulse_width);
- DPU_DEBUG_VIDENC(vid_enc,
+ DPU_DEBUG_VIDENC(phys_enc,
"wc_lines %u needed_vfp_lines %u actual_vfp_lines %u\n",
worst_case_needed_lines, needed_vfp_lines, actual_vfp_lines);

@@ -194,8 +194,6 @@ static u32 programmable_fetch_get_num_lines(
static void programmable_fetch_config(struct dpu_encoder_phys *phys_enc,
const struct intf_timing_params *timing)
{
- struct dpu_encoder_phys_vid *vid_enc =
- to_dpu_encoder_phys_vid(phys_enc);
struct intf_prog_fetch f = { 0 };
u32 vfp_fetch_lines = 0;
u32 horiz_total = 0;
@@ -203,10 +201,10 @@ static void programmable_fetch_config(struct dpu_encoder_phys *phys_enc,
u32 vfp_fetch_start_vsync_counter = 0;
unsigned long lock_flags;

- if (WARN_ON_ONCE(!vid_enc->hw_intf->ops.setup_prg_fetch))
+ if (WARN_ON_ONCE(!phys_enc->hw_intf->ops.setup_prg_fetch))
return;

- vfp_fetch_lines = programmable_fetch_get_num_lines(vid_enc, timing);
+ vfp_fetch_lines = programmable_fetch_get_num_lines(phys_enc, timing);
if (vfp_fetch_lines) {
vert_total = get_vertical_total(timing);
horiz_total = get_horizontal_total(timing);
@@ -216,12 +214,12 @@ static void programmable_fetch_config(struct dpu_encoder_phys *phys_enc,
f.fetch_start = vfp_fetch_start_vsync_counter;
}

- DPU_DEBUG_VIDENC(vid_enc,
+ DPU_DEBUG_VIDENC(phys_enc,
"vfp_fetch_lines %u vfp_fetch_start_vsync_counter %u\n",
vfp_fetch_lines, vfp_fetch_start_vsync_counter);

spin_lock_irqsave(phys_enc->enc_spinlock, lock_flags);
- vid_enc->hw_intf->ops.setup_prg_fetch(vid_enc->hw_intf, &f);
+ phys_enc->hw_intf->ops.setup_prg_fetch(phys_enc->hw_intf, &f);
spin_unlock_irqrestore(phys_enc->enc_spinlock, lock_flags);
}

@@ -231,7 +229,7 @@ static bool dpu_encoder_phys_vid_mode_fixup(
struct drm_display_mode *adj_mode)
{
if (phys_enc)
- DPU_DEBUG_VIDENC(to_dpu_encoder_phys_vid(phys_enc), "\n");
+ DPU_DEBUG_VIDENC(phys_enc, "\n");

/*
* Modifying mode has consequences when the mode comes back to us
@@ -257,12 +255,12 @@ static void dpu_encoder_phys_vid_setup_timing_engine(

mode = phys_enc->cached_mode;
vid_enc = to_dpu_encoder_phys_vid(phys_enc);
- if (!vid_enc->hw_intf->ops.setup_timing_gen) {
+ if (!phys_enc->hw_intf->ops.setup_timing_gen) {
DPU_ERROR("timing engine setup is not supported\n");
return;
}

- DPU_DEBUG_VIDENC(vid_enc, "enabling mode:\n");
+ DPU_DEBUG_VIDENC(phys_enc, "enabling mode:\n");
drm_mode_debug_printmodeline(&mode);

if (phys_enc->split_role != ENC_ROLE_SOLO) {
@@ -271,25 +269,25 @@ static void dpu_encoder_phys_vid_setup_timing_engine(
mode.hsync_start >>= 1;
mode.hsync_end >>= 1;

- DPU_DEBUG_VIDENC(vid_enc,
+ DPU_DEBUG_VIDENC(phys_enc,
"split_role %d, halve horizontal %d %d %d %d\n",
phys_enc->split_role,
mode.hdisplay, mode.htotal,
mode.hsync_start, mode.hsync_end);
}

- drm_mode_to_intf_timing_params(vid_enc, &mode, &timing_params);
+ drm_mode_to_intf_timing_params(phys_enc, &mode, &timing_params);

fmt = dpu_get_dpu_format(fmt_fourcc);
- DPU_DEBUG_VIDENC(vid_enc, "fmt_fourcc 0x%X\n", fmt_fourcc);
+ DPU_DEBUG_VIDENC(phys_enc, "fmt_fourcc 0x%X\n", fmt_fourcc);

- intf_cfg.intf = vid_enc->hw_intf->idx;
+ intf_cfg.intf = phys_enc->hw_intf->idx;
intf_cfg.intf_mode_sel = DPU_CTL_MODE_SEL_VID;
intf_cfg.stream_sel = 0; /* Don't care value for video mode */
intf_cfg.mode_3d = dpu_encoder_helper_get_3d_blend_mode(phys_enc);

spin_lock_irqsave(phys_enc->enc_spinlock, lock_flags);
- vid_enc->hw_intf->ops.setup_timing_gen(vid_enc->hw_intf,
+ phys_enc->hw_intf->ops.setup_timing_gen(phys_enc->hw_intf,
&timing_params, fmt);
phys_enc->hw_ctl->ops.setup_intf_cfg(phys_enc->hw_ctl, &intf_cfg);
spin_unlock_irqrestore(phys_enc->enc_spinlock, lock_flags);
@@ -396,19 +394,15 @@ static void dpu_encoder_phys_vid_mode_set(
struct drm_display_mode *mode,
struct drm_display_mode *adj_mode)
{
- struct dpu_encoder_phys_vid *vid_enc;
-
if (!phys_enc || !phys_enc->dpu_kms) {
DPU_ERROR("invalid encoder/kms\n");
return;
}

- vid_enc = to_dpu_encoder_phys_vid(phys_enc);
-
if (adj_mode) {
phys_enc->cached_mode = *adj_mode;
drm_mode_debug_printmodeline(adj_mode);
- DPU_DEBUG_VIDENC(vid_enc, "caching mode:\n");
+ DPU_DEBUG_VIDENC(phys_enc, "caching mode:\n");
}

_dpu_encoder_phys_vid_setup_irq_hw_idx(phys_enc);
@@ -419,7 +413,6 @@ static int dpu_encoder_phys_vid_control_vblank_irq(
bool enable)
{
int ret = 0;
- struct dpu_encoder_phys_vid *vid_enc;
int refcount;

if (!phys_enc) {
@@ -428,7 +421,6 @@ static int dpu_encoder_phys_vid_control_vblank_irq(
}

refcount = atomic_read(&phys_enc->vblank_refcount);
- vid_enc = to_dpu_encoder_phys_vid(phys_enc);

/* Slave encoders don't report vblank */
if (!dpu_encoder_phys_vid_is_master(phys_enc))
@@ -453,7 +445,7 @@ static int dpu_encoder_phys_vid_control_vblank_irq(
if (ret) {
DRM_ERROR("failed: id:%u intf:%d ret:%d enable:%d refcnt:%d\n",
DRMID(phys_enc->parent),
- vid_enc->hw_intf->idx - INTF_0, ret, enable,
+ phys_enc->hw_intf->idx - INTF_0, ret, enable,
refcount);
}
return ret;
@@ -462,7 +454,6 @@ static int dpu_encoder_phys_vid_control_vblank_irq(
static void dpu_encoder_phys_vid_enable(struct dpu_encoder_phys *phys_enc)
{
struct msm_drm_private *priv;
- struct dpu_encoder_phys_vid *vid_enc;
struct dpu_rm_hw_iter iter;
struct dpu_hw_ctl *ctl;
u32 flush_mask = 0;
@@ -474,7 +465,6 @@ static void dpu_encoder_phys_vid_enable(struct dpu_encoder_phys *phys_enc)
}
priv = phys_enc->parent->dev->dev_private;

- vid_enc = to_dpu_encoder_phys_vid(phys_enc);
ctl = phys_enc->hw_ctl;

dpu_rm_init_hw_iter(&iter, phys_enc->parent->base.id, DPU_HW_BLK_INTF);
@@ -482,22 +472,22 @@ static void dpu_encoder_phys_vid_enable(struct dpu_encoder_phys *phys_enc)
struct dpu_hw_intf *hw_intf = (struct dpu_hw_intf *)iter.hw;

if (hw_intf->idx == phys_enc->intf_idx) {
- vid_enc->hw_intf = hw_intf;
+ phys_enc->hw_intf = hw_intf;
break;
}
}

- if (!vid_enc->hw_intf) {
+ if (!phys_enc->hw_intf) {
DPU_ERROR("hw_intf not assigned\n");
return;
}

- DPU_DEBUG_VIDENC(vid_enc, "\n");
+ DPU_DEBUG_VIDENC(phys_enc, "\n");

- if (WARN_ON(!vid_enc->hw_intf->ops.enable_timing))
+ if (WARN_ON(!phys_enc->hw_intf->ops.enable_timing))
return;

- dpu_encoder_helper_split_config(phys_enc, vid_enc->hw_intf->idx);
+ dpu_encoder_helper_split_config(phys_enc, phys_enc->hw_intf->idx);

dpu_encoder_phys_vid_setup_timing_engine(phys_enc);

@@ -510,12 +500,13 @@ static void dpu_encoder_phys_vid_enable(struct dpu_encoder_phys *phys_enc)
!dpu_encoder_phys_vid_is_master(phys_enc))
goto skip_flush;

- ctl->ops.get_bitmask_intf(ctl, &flush_mask, vid_enc->hw_intf->idx);
+ ctl->ops.get_bitmask_intf(ctl, &flush_mask, phys_enc->hw_intf->idx);
ctl->ops.update_pending_flush(ctl, flush_mask);

skip_flush:
- DPU_DEBUG_VIDENC(vid_enc, "update pending flush ctl %d flush_mask %x\n",
- ctl->idx - CTL_0, flush_mask);
+ DPU_DEBUG_VIDENC(phys_enc,
+ "update pending flush ctl %d flush_mask %x\n",
+ ctl->idx - CTL_0, flush_mask);

/* ctl_flush & timing engine enable will be triggered by framework */
if (phys_enc->enable_state == DPU_ENC_DISABLED)
@@ -532,7 +523,7 @@ static void dpu_encoder_phys_vid_destroy(struct dpu_encoder_phys *phys_enc)
}

vid_enc = to_dpu_encoder_phys_vid(phys_enc);
- DPU_DEBUG_VIDENC(vid_enc, "\n");
+ DPU_DEBUG_VIDENC(phys_enc, "\n");
kfree(vid_enc);
}

@@ -590,7 +581,6 @@ static void dpu_encoder_phys_vid_prepare_for_kickoff(
struct dpu_encoder_phys *phys_enc,
struct dpu_encoder_kickoff_params *params)
{
- struct dpu_encoder_phys_vid *vid_enc;
struct dpu_hw_ctl *ctl;
int rc;

@@ -598,7 +588,6 @@ static void dpu_encoder_phys_vid_prepare_for_kickoff(
DPU_ERROR("invalid encoder/parameters\n");
return;
}
- vid_enc = to_dpu_encoder_phys_vid(phys_enc);

ctl = phys_enc->hw_ctl;
if (!ctl || !ctl->ops.wait_reset_status)
@@ -610,7 +599,7 @@ static void dpu_encoder_phys_vid_prepare_for_kickoff(
*/
rc = ctl->ops.wait_reset_status(ctl);
if (rc) {
- DPU_ERROR_VIDENC(vid_enc, "ctl %d reset failure: %d\n",
+ DPU_ERROR_VIDENC(phys_enc, "ctl %d reset failure: %d\n",
ctl->idx, rc);
dpu_encoder_helper_unregister_irq(phys_enc, INTR_IDX_VSYNC);
}
@@ -619,7 +608,6 @@ static void dpu_encoder_phys_vid_prepare_for_kickoff(
static void dpu_encoder_phys_vid_disable(struct dpu_encoder_phys *phys_enc)
{
struct msm_drm_private *priv;
- struct dpu_encoder_phys_vid *vid_enc;
unsigned long lock_flags;
int ret;

@@ -630,16 +618,13 @@ static void dpu_encoder_phys_vid_disable(struct dpu_encoder_phys *phys_enc)
}
priv = phys_enc->parent->dev->dev_private;

- vid_enc = to_dpu_encoder_phys_vid(phys_enc);
- if (!vid_enc->hw_intf || !phys_enc->hw_ctl) {
+ if (!phys_enc->hw_intf || !phys_enc->hw_ctl) {
DPU_ERROR("invalid hw_intf %d hw_ctl %d\n",
- vid_enc->hw_intf != 0, phys_enc->hw_ctl != 0);
+ phys_enc->hw_intf != 0, phys_enc->hw_ctl != 0);
return;
}

- DPU_DEBUG_VIDENC(vid_enc, "\n");
-
- if (WARN_ON(!vid_enc->hw_intf->ops.enable_timing))
+ if (WARN_ON(!phys_enc->hw_intf->ops.enable_timing))
return;

if (phys_enc->enable_state == DPU_ENC_DISABLED) {
@@ -648,7 +633,7 @@ static void dpu_encoder_phys_vid_disable(struct dpu_encoder_phys *phys_enc)
}

spin_lock_irqsave(phys_enc->enc_spinlock, lock_flags);
- vid_enc->hw_intf->ops.enable_timing(vid_enc->hw_intf, 0);
+ phys_enc->hw_intf->ops.enable_timing(phys_enc->hw_intf, 0);
if (dpu_encoder_phys_vid_is_master(phys_enc))
dpu_encoder_phys_inc_pending(phys_enc);
spin_unlock_irqrestore(phys_enc->enc_spinlock, lock_flags);
@@ -667,7 +652,7 @@ static void dpu_encoder_phys_vid_disable(struct dpu_encoder_phys *phys_enc)
atomic_set(&phys_enc->pending_kickoff_cnt, 0);
DRM_ERROR("wait disable failed: id:%u intf:%d ret:%d\n",
DRMID(phys_enc->parent),
- vid_enc->hw_intf->idx - INTF_0, ret);
+ phys_enc->hw_intf->idx - INTF_0, ret);
}
}

@@ -678,25 +663,21 @@ static void dpu_encoder_phys_vid_handle_post_kickoff(
struct dpu_encoder_phys *phys_enc)
{
unsigned long lock_flags;
- struct dpu_encoder_phys_vid *vid_enc;

if (!phys_enc) {
DPU_ERROR("invalid encoder\n");
return;
}

- vid_enc = to_dpu_encoder_phys_vid(phys_enc);
- DPU_DEBUG_VIDENC(vid_enc, "enable_state %d\n", phys_enc->enable_state);
-
/*
* Video mode must flush CTL before enabling timing engine
* Video encoders need to turn on their interfaces now
*/
if (phys_enc->enable_state == DPU_ENC_ENABLING) {
trace_dpu_enc_phys_vid_post_kickoff(DRMID(phys_enc->parent),
- vid_enc->hw_intf->idx - INTF_0);
+ phys_enc->hw_intf->idx - INTF_0);
spin_lock_irqsave(phys_enc->enc_spinlock, lock_flags);
- vid_enc->hw_intf->ops.enable_timing(vid_enc->hw_intf, 1);
+ phys_enc->hw_intf->ops.enable_timing(phys_enc->hw_intf, 1);
spin_unlock_irqrestore(phys_enc->enc_spinlock, lock_flags);
phys_enc->enable_state = DPU_ENC_ENABLED;
}
@@ -705,16 +686,13 @@ static void dpu_encoder_phys_vid_handle_post_kickoff(
static void dpu_encoder_phys_vid_irq_control(struct dpu_encoder_phys *phys_enc,
bool enable)
{
- struct dpu_encoder_phys_vid *vid_enc;
int ret;

if (!phys_enc)
return;

- vid_enc = to_dpu_encoder_phys_vid(phys_enc);
-
trace_dpu_enc_phys_vid_irq_ctrl(DRMID(phys_enc->parent),
- vid_enc->hw_intf->idx - INTF_0,
+ phys_enc->hw_intf->idx - INTF_0,
enable,
atomic_read(&phys_enc->vblank_refcount));

@@ -733,19 +711,16 @@ static void dpu_encoder_phys_vid_irq_control(struct dpu_encoder_phys *phys_enc,
static int dpu_encoder_phys_vid_get_line_count(
struct dpu_encoder_phys *phys_enc)
{
- struct dpu_encoder_phys_vid *vid_enc;
-
if (!phys_enc)
return -EINVAL;

if (!dpu_encoder_phys_vid_is_master(phys_enc))
return -EINVAL;

- vid_enc = to_dpu_encoder_phys_vid(phys_enc);
- if (!vid_enc->hw_intf || !vid_enc->hw_intf->ops.get_line_count)
+ if (!phys_enc->hw_intf || !phys_enc->hw_intf->ops.get_line_count)
return -EINVAL;

- return vid_enc->hw_intf->ops.get_line_count(vid_enc->hw_intf);
+ return phys_enc->hw_intf->ops.get_line_count(phys_enc->hw_intf);
}

static void dpu_encoder_phys_vid_init_ops(struct dpu_encoder_phys_ops *ops)
@@ -792,7 +767,7 @@ struct dpu_encoder_phys *dpu_encoder_phys_vid_init(
phys_enc->hw_mdptop = p->dpu_kms->hw_mdp;
phys_enc->intf_idx = p->intf_idx;

- DPU_DEBUG_VIDENC(vid_enc, "\n");
+ DPU_DEBUG_VIDENC(phys_enc, "\n");

dpu_encoder_phys_vid_init_ops(&phys_enc->ops);
phys_enc->parent = p->parent;
@@ -826,7 +801,7 @@ struct dpu_encoder_phys *dpu_encoder_phys_vid_init(
init_waitqueue_head(&phys_enc->pending_kickoff_wq);
phys_enc->enable_state = DPU_ENC_DISABLED;

- DPU_DEBUG_VIDENC(vid_enc, "created intf idx:%d\n", p->intf_idx);
+ DPU_DEBUG_VIDENC(phys_enc, "created intf idx:%d\n", p->intf_idx);

return phys_enc;

--
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