[Intel-gfx] [PATCH v29 4/6] drm/i915: Add TGL+ SAGV support
Stanislav Lisovskiy
stanislav.lisovskiy at intel.com
Wed May 13 09:38:14 UTC 2020
Starting from TGL we need to have a separate wm0
values for SAGV and non-SAGV which affects
how calculations are done.
v2: Remove long lines
v3: Removed COLOR_PLANE enum references
v4, v5, v6: Fixed rebase conflict
v7: - Removed skl_plane_wm_level accessor from skl_allocate_pipe_ddb(Ville)
- Removed sagv_uv_wm0(Ville)
- can_sagv->use_sagv_wm(Ville)
v8: - Moved tgl_crtc_can_enable_sagv function up(Ville)
- Changed comment regarding pipe_wm usage(Ville)
- Call intel_can_enable_sagv and tgl_compute_sagv_wm only
for Gen12(Ville)
- Some sagv debugs removed(Ville)
- skl_print_wm_changes improvements(Ville)
- Do assignment instead of memcpy in
skl_pipe_wm_get_hw_state(Ville)
Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 8 +-
.../drm/i915/display/intel_display_types.h | 2 +
drivers/gpu/drm/i915/intel_pm.c | 112 +++++++++++++++---
3 files changed, 103 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index fd6d63b03489..be5741cb7595 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -13961,7 +13961,9 @@ static void verify_wm_state(struct intel_crtc *crtc,
/* Watermarks */
for (level = 0; level <= max_level; level++) {
if (skl_wm_level_equals(&hw_plane_wm->wm[level],
- &sw_plane_wm->wm[level]))
+ &sw_plane_wm->wm[level]) ||
+ (level == 0 && skl_wm_level_equals(&hw_plane_wm->wm[level],
+ &sw_plane_wm->sagv_wm0)))
continue;
drm_err(&dev_priv->drm,
@@ -14016,7 +14018,9 @@ static void verify_wm_state(struct intel_crtc *crtc,
/* Watermarks */
for (level = 0; level <= max_level; level++) {
if (skl_wm_level_equals(&hw_plane_wm->wm[level],
- &sw_plane_wm->wm[level]))
+ &sw_plane_wm->wm[level]) ||
+ (level == 0 && skl_wm_level_equals(&hw_plane_wm->wm[level],
+ &sw_plane_wm->sagv_wm0)))
continue;
drm_err(&dev_priv->drm,
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 9488449e4b94..8cede29c9562 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -688,11 +688,13 @@ struct skl_plane_wm {
struct skl_wm_level wm[8];
struct skl_wm_level uv_wm[8];
struct skl_wm_level trans_wm;
+ struct skl_wm_level sagv_wm0;
bool is_planar;
};
struct skl_pipe_wm {
struct skl_plane_wm planes[I915_MAX_PLANES];
+ bool use_sagv_wm;
};
enum vlv_wm_level {
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index de0f8cede59c..1f253db3b7c0 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3853,9 +3853,39 @@ static bool skl_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state)
return true;
}
+static bool tgl_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state)
+{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ enum plane_id plane_id;
+
+ if (!crtc_state->hw.active)
+ return true;
+
+ for_each_plane_id_on_crtc(crtc, plane_id) {
+ const struct skl_ddb_entry *plane_alloc =
+ &crtc_state->wm.skl.plane_ddb_y[plane_id];
+ const struct skl_plane_wm *wm =
+ &crtc_state->wm.skl.optimal.planes[plane_id];
+
+ if (skl_ddb_entry_size(plane_alloc) < wm->sagv_wm0.min_ddb_alloc)
+ return false;
+ }
+
+ return true;
+}
+
static bool intel_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state)
{
- return skl_crtc_can_enable_sagv(crtc_state);
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ bool can_sagv;
+
+ if (INTEL_GEN(dev_priv) >= 12)
+ can_sagv = tgl_crtc_can_enable_sagv(crtc_state);
+ else
+ can_sagv = skl_crtc_can_enable_sagv(crtc_state);
+
+ return can_sagv;
}
bool intel_can_enable_sagv(struct drm_i915_private *dev_priv,
@@ -3873,7 +3903,7 @@ static int intel_compute_sagv_mask(struct intel_atomic_state *state)
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
int ret;
struct intel_crtc *crtc;
- const struct intel_crtc_state *new_crtc_state;
+ struct intel_crtc_state *new_crtc_state;
struct intel_bw_state *new_bw_state = NULL;
const struct intel_bw_state *old_bw_state = NULL;
int i;
@@ -3904,6 +3934,20 @@ static int intel_compute_sagv_mask(struct intel_atomic_state *state)
return ret;
}
+ for_each_new_intel_crtc_in_state(state, crtc,
+ new_crtc_state, i) {
+ struct skl_pipe_wm *pipe_wm = &new_crtc_state->wm.skl.optimal;
+
+ /*
+ * We store use_sagv_wm in the crtc state rather than relying on
+ * that bw state since we have no convenient way to get at the
+ * latter from the plane commit hooks (especially in the legacy
+ * cursor case)
+ */
+ pipe_wm->use_sagv_wm = INTEL_GEN(dev_priv) >= 12 &&
+ intel_can_enable_sagv(dev_priv, new_bw_state);
+ }
+
if (intel_can_enable_sagv(dev_priv, new_bw_state) != intel_can_enable_sagv(dev_priv, old_bw_state)) {
ret = intel_atomic_serialize_global_state(&new_bw_state->base);
if (ret)
@@ -4646,8 +4690,11 @@ skl_plane_wm_level(const struct intel_crtc_state *crtc_state,
enum plane_id plane_id,
int level)
{
- const struct skl_plane_wm *wm =
- &crtc_state->wm.skl.optimal.planes[plane_id];
+ const struct skl_pipe_wm *pipe_wm = &crtc_state->wm.skl.optimal;
+ const struct skl_plane_wm *wm = &pipe_wm->planes[plane_id];
+
+ if (level == 0 && pipe_wm->use_sagv_wm)
+ return &wm->sagv_wm0;
return &wm->wm[level];
}
@@ -4688,7 +4735,6 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *crtc_state)
plane_data_rate,
uv_plane_data_rate);
-
skl_ddb_get_pipe_allocation_limits(dev_priv, crtc_state, total_data_rate,
alloc, &num_active);
alloc_size = skl_ddb_entry_size(alloc);
@@ -5223,6 +5269,22 @@ skl_compute_wm_levels(const struct intel_crtc_state *crtc_state,
}
}
+static void tgl_compute_sagv_wm(const struct intel_crtc_state *crtc_state,
+ const struct skl_wm_params *wm_params,
+ struct skl_plane_wm *plane_wm)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
+ struct skl_wm_level *sagv_wm = &plane_wm->sagv_wm0;
+ struct skl_wm_level *levels = plane_wm->wm;
+
+ u32 latency = dev_priv->wm.skl_latency[0];
+
+ latency += dev_priv->sagv_block_time_us;
+ skl_compute_plane_wm(crtc_state, 0, latency,
+ wm_params, &levels[0],
+ sagv_wm);
+}
+
static void skl_compute_transition_wm(const struct intel_crtc_state *crtc_state,
const struct skl_wm_params *wp,
struct skl_plane_wm *wm)
@@ -5290,6 +5352,8 @@ static int skl_build_plane_wm_single(struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state,
enum plane_id plane_id, int color_plane)
{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
struct skl_plane_wm *wm = &crtc_state->wm.skl.optimal.planes[plane_id];
struct skl_wm_params wm_params;
int ret;
@@ -5300,6 +5364,10 @@ static int skl_build_plane_wm_single(struct intel_crtc_state *crtc_state,
return ret;
skl_compute_wm_levels(crtc_state, &wm_params, wm->wm);
+
+ if (INTEL_GEN(dev_priv) >= 12)
+ tgl_compute_sagv_wm(crtc_state, &wm_params, wm);
+
skl_compute_transition_wm(crtc_state, &wm_params, wm);
return 0;
@@ -5666,23 +5734,25 @@ skl_print_wm_changes(struct intel_atomic_state *state)
continue;
drm_dbg_kms(&dev_priv->drm,
- "[PLANE:%d:%s] level %cwm0,%cwm1,%cwm2,%cwm3,%cwm4,%cwm5,%cwm6,%cwm7,%ctwm"
- " -> %cwm0,%cwm1,%cwm2,%cwm3,%cwm4,%cwm5,%cwm6,%cwm7,%ctwm\n",
+ "[PLANE:%d:%s] level %cwm0,%cwm1,%cwm2,%cwm3,%cwm4,%cwm5,%cwm6,%cwm7,%ctwm,%cswm"
+ " -> %cwm0,%cwm1,%cwm2,%cwm3,%cwm4,%cwm5,%cwm6,%cwm7,%ctwm,%cswm\n",
plane->base.base.id, plane->base.name,
enast(old_wm->wm[0].plane_en), enast(old_wm->wm[1].plane_en),
enast(old_wm->wm[2].plane_en), enast(old_wm->wm[3].plane_en),
enast(old_wm->wm[4].plane_en), enast(old_wm->wm[5].plane_en),
enast(old_wm->wm[6].plane_en), enast(old_wm->wm[7].plane_en),
enast(old_wm->trans_wm.plane_en),
+ enast(old_wm->sagv_wm0.plane_en),
enast(new_wm->wm[0].plane_en), enast(new_wm->wm[1].plane_en),
enast(new_wm->wm[2].plane_en), enast(new_wm->wm[3].plane_en),
enast(new_wm->wm[4].plane_en), enast(new_wm->wm[5].plane_en),
enast(new_wm->wm[6].plane_en), enast(new_wm->wm[7].plane_en),
- enast(new_wm->trans_wm.plane_en));
+ enast(new_wm->trans_wm.plane_en),
+ enast(new_wm->sagv_wm0.plane_en));
drm_dbg_kms(&dev_priv->drm,
- "[PLANE:%d:%s] lines %c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d"
- " -> %c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d\n",
+ "[PLANE:%d:%s] lines %c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d"
+ " -> %c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d\n",
plane->base.base.id, plane->base.name,
enast(old_wm->wm[0].ignore_lines), old_wm->wm[0].plane_res_l,
enast(old_wm->wm[1].ignore_lines), old_wm->wm[1].plane_res_l,
@@ -5693,6 +5763,7 @@ skl_print_wm_changes(struct intel_atomic_state *state)
enast(old_wm->wm[6].ignore_lines), old_wm->wm[6].plane_res_l,
enast(old_wm->wm[7].ignore_lines), old_wm->wm[7].plane_res_l,
enast(old_wm->trans_wm.ignore_lines), old_wm->trans_wm.plane_res_l,
+ enast(old_wm->sagv_wm0.ignore_lines), old_wm->sagv_wm0.plane_res_l,
enast(new_wm->wm[0].ignore_lines), new_wm->wm[0].plane_res_l,
enast(new_wm->wm[1].ignore_lines), new_wm->wm[1].plane_res_l,
@@ -5702,37 +5773,42 @@ skl_print_wm_changes(struct intel_atomic_state *state)
enast(new_wm->wm[5].ignore_lines), new_wm->wm[5].plane_res_l,
enast(new_wm->wm[6].ignore_lines), new_wm->wm[6].plane_res_l,
enast(new_wm->wm[7].ignore_lines), new_wm->wm[7].plane_res_l,
- enast(new_wm->trans_wm.ignore_lines), new_wm->trans_wm.plane_res_l);
+ enast(new_wm->trans_wm.ignore_lines), new_wm->trans_wm.plane_res_l,
+ enast(new_wm->sagv_wm0.ignore_lines), new_wm->sagv_wm0.plane_res_l);
drm_dbg_kms(&dev_priv->drm,
- "[PLANE:%d:%s] blocks %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d"
- " -> %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d\n",
+ "[PLANE:%d:%s] blocks %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d"
+ " -> %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d\n",
plane->base.base.id, plane->base.name,
old_wm->wm[0].plane_res_b, old_wm->wm[1].plane_res_b,
old_wm->wm[2].plane_res_b, old_wm->wm[3].plane_res_b,
old_wm->wm[4].plane_res_b, old_wm->wm[5].plane_res_b,
old_wm->wm[6].plane_res_b, old_wm->wm[7].plane_res_b,
old_wm->trans_wm.plane_res_b,
+ old_wm->sagv_wm0.plane_res_b,
new_wm->wm[0].plane_res_b, new_wm->wm[1].plane_res_b,
new_wm->wm[2].plane_res_b, new_wm->wm[3].plane_res_b,
new_wm->wm[4].plane_res_b, new_wm->wm[5].plane_res_b,
new_wm->wm[6].plane_res_b, new_wm->wm[7].plane_res_b,
- new_wm->trans_wm.plane_res_b);
+ new_wm->trans_wm.plane_res_b,
+ new_wm->sagv_wm0.plane_res_b);
drm_dbg_kms(&dev_priv->drm,
- "[PLANE:%d:%s] min_ddb %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d"
- " -> %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d\n",
+ "[PLANE:%d:%s] min_ddb %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d"
+ " -> %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d\n",
plane->base.base.id, plane->base.name,
old_wm->wm[0].min_ddb_alloc, old_wm->wm[1].min_ddb_alloc,
old_wm->wm[2].min_ddb_alloc, old_wm->wm[3].min_ddb_alloc,
old_wm->wm[4].min_ddb_alloc, old_wm->wm[5].min_ddb_alloc,
old_wm->wm[6].min_ddb_alloc, old_wm->wm[7].min_ddb_alloc,
old_wm->trans_wm.min_ddb_alloc,
+ old_wm->sagv_wm0.min_ddb_alloc,
new_wm->wm[0].min_ddb_alloc, new_wm->wm[1].min_ddb_alloc,
new_wm->wm[2].min_ddb_alloc, new_wm->wm[3].min_ddb_alloc,
new_wm->wm[4].min_ddb_alloc, new_wm->wm[5].min_ddb_alloc,
new_wm->wm[6].min_ddb_alloc, new_wm->wm[7].min_ddb_alloc,
- new_wm->trans_wm.min_ddb_alloc);
+ new_wm->trans_wm.min_ddb_alloc,
+ new_wm->sagv_wm0.min_ddb_alloc);
}
}
}
@@ -6025,6 +6101,8 @@ void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc,
skl_wm_level_from_reg_val(val, &wm->wm[level]);
}
+ wm->sagv_wm0 = wm->wm[0];
+
if (plane_id != PLANE_CURSOR)
val = I915_READ(PLANE_WM_TRANS(pipe, plane_id));
else
--
2.24.1.485.gad05a3d8e5
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