[Intel-gfx] [PATCH 03/14] drm/i915: Eliminate usage of pipe_wm_parameters from ILK-style WM (v2)
Matt Roper
matthew.d.roper at intel.com
Mon Sep 14 19:19:19 PDT 2015
Just pull the info out of the CRTC state structure rather than staging
it in an additional structure.
Note that we use cstate->active rather than intel_crtc->active which may
appear to be a change in behavior. However since we're no longer trying
to recalculate watermarks during the "pipe off" stage of a modeset,
intel_crtc->active and cstate->active should always be identical when
watermarks are calculated (at least for ILK-style platforms).
v2: Clarify reasoning for cstate->active and add a WARN_ON to the code
to assert that it really is always identical to intel_crtc->active
as expected.
Signed-off-by: Matt Roper <matthew.d.roper at intel.com>
---
drivers/gpu/drm/i915/intel_pm.c | 84 ++++++++++++++---------------------------
1 file changed, 29 insertions(+), 55 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 442a1f6..0caabce 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -1795,12 +1795,6 @@ struct skl_pipe_wm_parameters {
struct intel_plane_wm_parameters cursor;
};
-struct ilk_pipe_wm_parameters {
- bool active;
- uint32_t pipe_htotal;
- uint32_t pixel_rate;
-};
-
struct ilk_wm_maximums {
uint16_t pri;
uint16_t spr;
@@ -1819,7 +1813,7 @@ struct intel_wm_config {
* For both WM_PIPE and WM_LP.
* mem_value must be in 0.1us units.
*/
-static uint32_t ilk_compute_pri_wm(const struct ilk_pipe_wm_parameters *params,
+static uint32_t ilk_compute_pri_wm(const struct intel_crtc_state *cstate,
const struct intel_plane_state *pstate,
uint32_t mem_value,
bool is_lp)
@@ -1827,16 +1821,16 @@ static uint32_t ilk_compute_pri_wm(const struct ilk_pipe_wm_parameters *params,
int bpp = pstate->base.fb ? pstate->base.fb->bits_per_pixel / 8 : 0;
uint32_t method1, method2;
- if (!params->active || !pstate->visible)
+ if (!cstate->base.active || !pstate->visible)
return 0;
- method1 = ilk_wm_method1(params->pixel_rate, bpp, mem_value);
+ method1 = ilk_wm_method1(ilk_pipe_pixel_rate(cstate), bpp, mem_value);
if (!is_lp)
return method1;
- method2 = ilk_wm_method2(params->pixel_rate,
- params->pipe_htotal,
+ method2 = ilk_wm_method2(ilk_pipe_pixel_rate(cstate),
+ cstate->base.adjusted_mode.crtc_htotal,
drm_rect_width(&pstate->dst),
bpp,
mem_value);
@@ -1848,19 +1842,19 @@ static uint32_t ilk_compute_pri_wm(const struct ilk_pipe_wm_parameters *params,
* For both WM_PIPE and WM_LP.
* mem_value must be in 0.1us units.
*/
-static uint32_t ilk_compute_spr_wm(const struct ilk_pipe_wm_parameters *params,
+static uint32_t ilk_compute_spr_wm(const struct intel_crtc_state *cstate,
const struct intel_plane_state *pstate,
uint32_t mem_value)
{
int bpp = pstate->base.fb ? pstate->base.fb->bits_per_pixel / 8 : 0;
uint32_t method1, method2;
- if (!params->active || !pstate->visible)
+ if (!cstate->base.active || !pstate->visible)
return 0;
- method1 = ilk_wm_method1(params->pixel_rate, bpp, mem_value);
- method2 = ilk_wm_method2(params->pixel_rate,
- params->pipe_htotal,
+ method1 = ilk_wm_method1(ilk_pipe_pixel_rate(cstate), bpp, mem_value);
+ method2 = ilk_wm_method2(ilk_pipe_pixel_rate(cstate),
+ cstate->base.adjusted_mode.crtc_htotal,
drm_rect_width(&pstate->dst),
bpp,
mem_value);
@@ -1871,30 +1865,30 @@ static uint32_t ilk_compute_spr_wm(const struct ilk_pipe_wm_parameters *params,
* For both WM_PIPE and WM_LP.
* mem_value must be in 0.1us units.
*/
-static uint32_t ilk_compute_cur_wm(const struct ilk_pipe_wm_parameters *params,
+static uint32_t ilk_compute_cur_wm(const struct intel_crtc_state *cstate,
const struct intel_plane_state *pstate,
uint32_t mem_value)
{
int bpp = pstate->base.fb ? pstate->base.fb->bits_per_pixel / 8 : 0;
- if (!params->active || !pstate->visible)
+ if (!cstate->base.active || !pstate->visible)
return 0;
- return ilk_wm_method2(params->pixel_rate,
- params->pipe_htotal,
+ return ilk_wm_method2(ilk_pipe_pixel_rate(cstate),
+ cstate->base.adjusted_mode.crtc_htotal,
drm_rect_width(&pstate->dst),
bpp,
mem_value);
}
/* Only for WM_LP. */
-static uint32_t ilk_compute_fbc_wm(const struct ilk_pipe_wm_parameters *params,
+static uint32_t ilk_compute_fbc_wm(const struct intel_crtc_state *cstate,
const struct intel_plane_state *pstate,
uint32_t pri_val)
{
int bpp = pstate->base.fb ? pstate->base.fb->bits_per_pixel / 8 : 0;
- if (!params->active || !pstate->visible)
+ if (!cstate->base.active || !pstate->visible)
return 0;
return ilk_wm_fbc(pri_val, drm_rect_width(&pstate->dst), bpp);
@@ -2064,7 +2058,7 @@ static bool ilk_validate_wm_level(int level,
static void ilk_compute_wm_level(const struct drm_i915_private *dev_priv,
const struct intel_crtc *intel_crtc,
int level,
- const struct ilk_pipe_wm_parameters *p,
+ struct intel_crtc_state *cstate,
struct intel_wm_level *result)
{
struct intel_plane *intel_plane;
@@ -2085,18 +2079,18 @@ static void ilk_compute_wm_level(const struct drm_i915_private *dev_priv,
switch (intel_plane->base.type) {
case DRM_PLANE_TYPE_PRIMARY:
- result->pri_val = ilk_compute_pri_wm(p, pstate,
+ result->pri_val = ilk_compute_pri_wm(cstate, pstate,
pri_latency,
level);
- result->fbc_val = ilk_compute_fbc_wm(p, pstate,
+ result->fbc_val = ilk_compute_fbc_wm(cstate, pstate,
result->pri_val);
break;
case DRM_PLANE_TYPE_OVERLAY:
- result->spr_val = ilk_compute_spr_wm(p, pstate,
+ result->spr_val = ilk_compute_spr_wm(cstate, pstate,
spr_latency);
break;
case DRM_PLANE_TYPE_CURSOR:
- result->cur_val = ilk_compute_cur_wm(p, pstate,
+ result->cur_val = ilk_compute_cur_wm(cstate, pstate,
cur_latency);
break;
}
@@ -2360,19 +2354,6 @@ static void skl_setup_wm_latency(struct drm_device *dev)
intel_print_wm_latency(dev, "Gen9 Plane", dev_priv->wm.skl_latency);
}
-static void ilk_compute_wm_parameters(struct drm_crtc *crtc,
- struct ilk_pipe_wm_parameters *p)
-{
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-
- if (!intel_crtc->active)
- return;
-
- p->active = true;
- p->pipe_htotal = intel_crtc->config->base.adjusted_mode.crtc_htotal;
- p->pixel_rate = ilk_pipe_pixel_rate(intel_crtc->config);
-}
-
static void ilk_compute_wm_config(struct drm_device *dev,
struct intel_wm_config *config)
{
@@ -2392,10 +2373,10 @@ static void ilk_compute_wm_config(struct drm_device *dev,
}
/* Compute new watermarks for the pipe */
-static bool intel_compute_pipe_wm(struct drm_crtc *crtc,
- const struct ilk_pipe_wm_parameters *params,
+static bool intel_compute_pipe_wm(struct intel_crtc_state *cstate,
struct intel_pipe_wm *pipe_wm)
{
+ struct drm_crtc *crtc = cstate->base.crtc;
struct drm_device *dev = crtc->dev;
const struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
@@ -2420,8 +2401,7 @@ static bool intel_compute_pipe_wm(struct drm_crtc *crtc,
(drm_rect_width(&sprstate->dst) != drm_rect_width(&sprstate->src) >> 16 ||
drm_rect_height(&sprstate->dst) != drm_rect_height(&sprstate->src) >> 16);
-
- pipe_wm->pipe_enabled = params->active;
+ pipe_wm->pipe_enabled = cstate->base.active;
pipe_wm->sprites_enabled = sprstate->visible;
pipe_wm->sprites_scaled = config.sprites_scaled;
@@ -2433,7 +2413,7 @@ static bool intel_compute_pipe_wm(struct drm_crtc *crtc,
if (config.sprites_scaled)
max_level = 0;
- ilk_compute_wm_level(dev_priv, intel_crtc, 0, params, &pipe_wm->wm[0]);
+ ilk_compute_wm_level(dev_priv, intel_crtc, 0, cstate, &pipe_wm->wm[0]);
if (IS_HASWELL(dev) || IS_BROADWELL(dev))
pipe_wm->linetime = hsw_compute_linetime_wm(dev, crtc);
@@ -2450,7 +2430,7 @@ static bool intel_compute_pipe_wm(struct drm_crtc *crtc,
for (level = 1; level <= max_level; level++) {
struct intel_wm_level wm = {};
- ilk_compute_wm_level(dev_priv, intel_crtc, level, params, &wm);
+ ilk_compute_wm_level(dev_priv, intel_crtc, level, cstate, &wm);
/*
* Disable any watermark level that exceeds the
@@ -3757,19 +3737,19 @@ skl_update_sprite_wm(struct drm_plane *plane, struct drm_crtc *crtc,
static void ilk_update_wm(struct drm_crtc *crtc)
{
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct ilk_wm_maximums max;
- struct ilk_pipe_wm_parameters params = {};
struct ilk_wm_values results = {};
enum intel_ddb_partitioning partitioning;
struct intel_pipe_wm pipe_wm = {};
struct intel_pipe_wm lp_wm_1_2 = {}, lp_wm_5_6 = {}, *best_lp_wm;
struct intel_wm_config config = {};
- ilk_compute_wm_parameters(crtc, ¶ms);
+ WARN_ON(cstate->base.active != intel_crtc->active);
- intel_compute_pipe_wm(crtc, ¶ms, &pipe_wm);
+ intel_compute_pipe_wm(cstate, &pipe_wm);
if (!memcmp(&intel_crtc->wm.active, &pipe_wm, sizeof(pipe_wm)))
return;
@@ -3809,12 +3789,6 @@ ilk_update_sprite_wm(struct drm_plane *plane,
struct drm_device *dev = plane->dev;
struct intel_plane *intel_plane = to_intel_plane(plane);
- intel_plane->wm.enabled = enabled;
- intel_plane->wm.scaled = scaled;
- intel_plane->wm.horiz_pixels = sprite_width;
- intel_plane->wm.vert_pixels = sprite_width;
- intel_plane->wm.bytes_per_pixel = pixel_size;
-
/*
* IVB workaround: must disable low power watermarks for at least
* one frame before enabling scaling. LP watermarks can be re-enabled
--
2.1.4
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