[Intel-gfx] [PATCH 02/14] drm/i915: Track plane fifo sizes under intel_crtc
ville.syrjala at linux.intel.com
ville.syrjala at linux.intel.com
Mon Dec 12 20:35:18 UTC 2016
From: Ville Syrjälä <ville.syrjala at linux.intel.com>
Track the plane fifo sizes under intel_crtc instead of under each
intel_plane. Avoids looping over the planes in a bunch of places,
and later we'll move this tracking into the crtc state properly.
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
drivers/gpu/drm/i915/intel_drv.h | 7 ++-
drivers/gpu/drm/i915/intel_pm.c | 115 ++++++++++++++++-----------------------
2 files changed, 54 insertions(+), 68 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 20ba8f48bc3b..69b6f45e3eed 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -683,6 +683,10 @@ struct vlv_wm_state {
bool cxsr;
};
+struct vlv_fifo_state {
+ uint16_t plane[I915_MAX_PLANES];
+};
+
struct intel_crtc {
struct drm_crtc base;
enum pipe pipe;
@@ -732,6 +736,8 @@ struct intel_crtc {
/* allow CxSR on this pipe */
bool cxsr_allowed;
+
+ struct vlv_fifo_state fifo_state;
} wm;
int scanline_offset;
@@ -765,7 +771,6 @@ struct intel_plane_wm_parameters {
bool scaled;
u64 tiling;
unsigned int rotation;
- uint16_t fifo_size;
};
struct intel_plane {
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 06e55967f180..26af87f82608 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -393,15 +393,14 @@ static const int pessimal_latency_ns = 5000;
#define VLV_FIFO_START(dsparb, dsparb2, lo_shift, hi_shift) \
((((dsparb) >> (lo_shift)) & 0xff) | ((((dsparb2) >> (hi_shift)) & 0x1) << 8))
-static int vlv_get_fifo_size(struct intel_plane *plane)
+static void vlv_get_fifo_size(struct intel_crtc *crtc)
{
- struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
- int sprite0_start, sprite1_start, size;
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ struct vlv_fifo_state *fifo_state = &crtc->wm.fifo_state;
+ enum pipe pipe = crtc->pipe;
+ int sprite0_start, sprite1_start;
- if (plane->id == PLANE_CURSOR)
- return 63;
-
- switch (plane->pipe) {
+ switch (pipe) {
uint32_t dsparb, dsparb2, dsparb3;
case PIPE_A:
dsparb = I915_READ(DSPARB);
@@ -422,26 +421,21 @@ static int vlv_get_fifo_size(struct intel_plane *plane)
sprite1_start = VLV_FIFO_START(dsparb3, dsparb2, 8, 20);
break;
default:
- return 0;
+ MISSING_CASE(pipe);
+ return;
}
- switch (plane->id) {
- case PLANE_PRIMARY:
- size = sprite0_start;
- break;
- case PLANE_SPRITE0:
- size = sprite1_start - sprite0_start;
- break;
- case PLANE_SPRITE1:
- size = 512 - 1 - sprite1_start;
- break;
- default:
- return 0;
- }
-
- DRM_DEBUG_KMS("%s FIFO size: %d\n", plane->base.name, size);
+ fifo_state->plane[PLANE_PRIMARY] = sprite0_start;
+ fifo_state->plane[PLANE_SPRITE0] = sprite1_start - sprite0_start;
+ fifo_state->plane[PLANE_SPRITE1] = 511 - sprite1_start;
+ fifo_state->plane[PLANE_CURSOR] = 63;
- return size;
+ DRM_DEBUG_KMS("Pipe %c FIFO size: %d/%d/%d/%d\n",
+ pipe_name(pipe),
+ fifo_state->plane[PLANE_PRIMARY],
+ fifo_state->plane[PLANE_SPRITE0],
+ fifo_state->plane[PLANE_SPRITE1],
+ fifo_state->plane[PLANE_CURSOR]);
}
static int i9xx_get_fifo_size(struct drm_i915_private *dev_priv, int plane)
@@ -1019,8 +1013,9 @@ static uint16_t vlv_compute_wm_level(const struct intel_crtc_state *crtc_state,
static void vlv_compute_fifo(struct intel_crtc *crtc)
{
- struct drm_device *dev = crtc->base.dev;
struct vlv_wm_state *wm_state = &crtc->wm_state;
+ struct vlv_fifo_state *fifo_state = &crtc->wm.fifo_state;
+ struct drm_device *dev = crtc->base.dev;
struct intel_plane *plane;
unsigned int total_rate = 0;
const int fifo_size = 512 - 1;
@@ -1030,7 +1025,7 @@ static void vlv_compute_fifo(struct intel_crtc *crtc)
struct intel_plane_state *state =
to_intel_plane_state(plane->base.state);
- if (plane->base.type == DRM_PLANE_TYPE_CURSOR)
+ if (plane->id == PLANE_CURSOR)
continue;
if (state->base.visible) {
@@ -1044,19 +1039,19 @@ static void vlv_compute_fifo(struct intel_crtc *crtc)
to_intel_plane_state(plane->base.state);
unsigned int rate;
- if (plane->base.type == DRM_PLANE_TYPE_CURSOR) {
- plane->wm.fifo_size = 63;
+ if (plane->id == PLANE_CURSOR) {
+ fifo_state->plane[plane->id] = 63;
continue;
}
if (!state->base.visible) {
- plane->wm.fifo_size = 0;
+ fifo_state->plane[plane->id] = 0;
continue;
}
rate = drm_format_plane_cpp(state->base.fb->pixel_format, 0);
- plane->wm.fifo_size = fifo_size * rate / total_rate;
- fifo_left -= plane->wm.fifo_size;
+ fifo_state->plane[plane->id] = fifo_size * rate / total_rate;
+ fifo_left -= fifo_state->plane[plane->id];
}
fifo_extra = DIV_ROUND_UP(fifo_left, wm_state->num_active_planes ?: 1);
@@ -1068,16 +1063,16 @@ static void vlv_compute_fifo(struct intel_crtc *crtc)
if (fifo_left == 0)
break;
- if (plane->base.type == DRM_PLANE_TYPE_CURSOR)
+ if (plane->id == PLANE_CURSOR)
continue;
/* give it all to the first plane if none are active */
- if (plane->wm.fifo_size == 0 &&
+ if (fifo_state->plane[plane->id] == 0 &&
wm_state->num_active_planes)
continue;
plane_extra = min(fifo_extra, fifo_left);
- plane->wm.fifo_size += plane_extra;
+ fifo_state->plane[plane->id] += plane_extra;
fifo_left -= plane_extra;
}
@@ -1099,9 +1094,10 @@ static void vlv_invert_wms(struct intel_crtc *crtc)
for (level = 0; level < wm_state->num_levels; level++) {
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ const struct vlv_fifo_state *fifo_state = &crtc->wm.fifo_state;
const int sr_fifo_size =
INTEL_INFO(dev_priv)->num_pipes * 512 - 1;
- struct intel_plane *plane;
+ enum plane_id plane_id;
wm_state->sr[level].plane =
vlv_invert_wm_value(wm_state->sr[level].plane,
@@ -1110,10 +1106,10 @@ static void vlv_invert_wms(struct intel_crtc *crtc)
vlv_invert_wm_value(wm_state->sr[level].cursor,
63);
- for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, plane) {
- wm_state->wm[level].plane[plane->id] =
- vlv_invert_wm_value(wm_state->wm[level].plane[plane->id],
- plane->wm.fifo_size);
+ for_each_plane_id_on_crtc(crtc, plane_id) {
+ wm_state->wm[level].plane[plane_id] =
+ vlv_invert_wm_value(wm_state->wm[level].plane[plane_id],
+ fifo_state->plane[plane_id]);
}
}
}
@@ -1122,6 +1118,7 @@ static void vlv_compute_wm(struct intel_crtc *crtc)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
struct vlv_wm_state *wm_state = &crtc->wm_state;
+ const struct vlv_fifo_state *fifo_state = &crtc->wm.fifo_state;
struct intel_plane *plane;
int level;
@@ -1148,7 +1145,7 @@ static void vlv_compute_wm(struct intel_crtc *crtc)
/* normal watermarks */
for (level = 0; level < wm_state->num_levels; level++) {
int wm = vlv_compute_wm_level(crtc->config, state, level);
- int max_wm = plane->wm.fifo_size;
+ int max_wm = fifo_state->plane[plane->id];
/* hack */
if (WARN_ON(level == 0 && wm > max_wm))
@@ -1192,32 +1189,16 @@ static void vlv_compute_wm(struct intel_crtc *crtc)
static void vlv_pipe_set_fifo_size(struct intel_crtc *crtc)
{
- struct drm_device *dev = crtc->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct intel_plane *plane;
- int sprite0_start = 0, sprite1_start = 0, fifo_size = 0;
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ const struct vlv_fifo_state *fifo_state = &crtc->wm.fifo_state;
+ int sprite0_start, sprite1_start, fifo_size;
- for_each_intel_plane_on_crtc(dev, crtc, plane) {
- switch (plane->id) {
- case PLANE_PRIMARY:
- sprite0_start = plane->wm.fifo_size;
- break;
- case PLANE_SPRITE0:
- sprite1_start = sprite0_start + plane->wm.fifo_size;
- break;
- case PLANE_SPRITE1:
- fifo_size = sprite1_start + plane->wm.fifo_size;
- break;
- case PLANE_CURSOR:
- WARN_ON(plane->wm.fifo_size != 63);
- break;
- default:
- MISSING_CASE(plane->id);
- break;
- }
- }
+ sprite0_start = fifo_state->plane[PLANE_PRIMARY];
+ sprite1_start = fifo_state->plane[PLANE_SPRITE0] + sprite0_start;
+ fifo_size = fifo_state->plane[PLANE_SPRITE1] + sprite1_start;
- WARN_ON(fifo_size != 512 - 1);
+ WARN_ON(fifo_state->plane[PLANE_CURSOR] != 63);
+ WARN_ON(fifo_size != 511);
DRM_DEBUG_KMS("Pipe %c FIFO split %d / %d / %d\n",
pipe_name(crtc->pipe), sprite0_start,
@@ -4532,14 +4513,14 @@ void vlv_wm_get_hw_state(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = to_i915(dev);
struct vlv_wm_values *wm = &dev_priv->wm.vlv;
- struct intel_plane *plane;
+ struct intel_crtc *crtc;
enum pipe pipe;
u32 val;
vlv_read_wm_values(dev_priv, wm);
- for_each_intel_plane(dev, plane)
- plane->wm.fifo_size = vlv_get_fifo_size(plane);
+ for_each_intel_crtc(dev, crtc)
+ vlv_get_fifo_size(crtc);
wm->cxsr = I915_READ(FW_BLC_SELF_VLV) & FW_CSPWRDWNEN;
wm->level = VLV_WM_LEVEL_PM2;
--
2.7.4
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