[Intel-gfx] [PATCH 4/8] drm/i915/display: refactor initial plane config to a separate file
Dave Airlie
airlied at gmail.com
Tue Oct 12 04:34:58 UTC 2021
From: Dave Airlie <airlied at redhat.com>
This moves this functionality out of intel_display.c to separate
self-contained file.
Signed-off-by: Dave Airlie <airlied at redhat.com>
---
drivers/gpu/drm/i915/Makefile | 1 +
drivers/gpu/drm/i915/display/intel_display.c | 279 +----------------
drivers/gpu/drm/i915/display/intel_display.h | 2 +
.../drm/i915/display/intel_plane_initial.c | 283 ++++++++++++++++++
.../drm/i915/display/intel_plane_initial.h | 13 +
5 files changed, 302 insertions(+), 276 deletions(-)
create mode 100644 drivers/gpu/drm/i915/display/intel_plane_initial.c
create mode 100644 drivers/gpu/drm/i915/display/intel_plane_initial.h
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index c36c8a4f0716..5d9794d80bc2 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -225,6 +225,7 @@ i915-y += \
display/intel_hotplug.o \
display/intel_lpe_audio.o \
display/intel_overlay.o \
+ display/intel_plane_initial.o \
display/intel_psr.o \
display/intel_quirks.o \
display/intel_sprite.o \
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 39a7b24135c9..b0684537f987 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -95,6 +95,7 @@
#include "intel_overlay.h"
#include "intel_panel.h"
#include "intel_pipe_crc.h"
+#include "intel_plane_initial.h"
#include "intel_pm.h"
#include "intel_pps.h"
#include "intel_psr.h"
@@ -1238,123 +1239,6 @@ u32 intel_plane_fb_max_stride(struct drm_i915_private *dev_priv,
DRM_MODE_ROTATE_0);
}
-static struct i915_vma *
-initial_plane_vma(struct drm_i915_private *i915,
- struct intel_initial_plane_config *plane_config)
-{
- struct drm_i915_gem_object *obj;
- struct i915_vma *vma;
- u32 base, size;
-
- if (plane_config->size == 0)
- return NULL;
-
- base = round_down(plane_config->base,
- I915_GTT_MIN_ALIGNMENT);
- size = round_up(plane_config->base + plane_config->size,
- I915_GTT_MIN_ALIGNMENT);
- size -= base;
-
- /*
- * If the FB is too big, just don't use it since fbdev is not very
- * important and we should probably use that space with FBC or other
- * features.
- */
- if (IS_ENABLED(CONFIG_FRAMEBUFFER_CONSOLE) &&
- size * 2 > i915->stolen_usable_size)
- return NULL;
-
- obj = i915_gem_object_create_stolen_for_preallocated(i915, base, size);
- if (IS_ERR(obj))
- return NULL;
-
- /*
- * Mark it WT ahead of time to avoid changing the
- * cache_level during fbdev initialization. The
- * unbind there would get stuck waiting for rcu.
- */
- i915_gem_object_set_cache_coherency(obj, HAS_WT(i915) ?
- I915_CACHE_WT : I915_CACHE_NONE);
-
- switch (plane_config->tiling) {
- case I915_TILING_NONE:
- break;
- case I915_TILING_X:
- case I915_TILING_Y:
- obj->tiling_and_stride =
- plane_config->fb->base.pitches[0] |
- plane_config->tiling;
- break;
- default:
- MISSING_CASE(plane_config->tiling);
- goto err_obj;
- }
-
- vma = i915_vma_instance(obj, &i915->ggtt.vm, NULL);
- if (IS_ERR(vma))
- goto err_obj;
-
- if (i915_ggtt_pin(vma, NULL, 0, PIN_MAPPABLE | PIN_OFFSET_FIXED | base))
- goto err_obj;
-
- if (i915_gem_object_is_tiled(obj) &&
- !i915_vma_is_map_and_fenceable(vma))
- goto err_obj;
-
- return vma;
-
-err_obj:
- i915_gem_object_put(obj);
- return NULL;
-}
-
-static bool
-intel_alloc_initial_plane_obj(struct intel_crtc *crtc,
- struct intel_initial_plane_config *plane_config)
-{
- struct drm_device *dev = crtc->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct drm_mode_fb_cmd2 mode_cmd = { 0 };
- struct drm_framebuffer *fb = &plane_config->fb->base;
- struct i915_vma *vma;
-
- switch (fb->modifier) {
- case DRM_FORMAT_MOD_LINEAR:
- case I915_FORMAT_MOD_X_TILED:
- case I915_FORMAT_MOD_Y_TILED:
- break;
- default:
- drm_dbg(&dev_priv->drm,
- "Unsupported modifier for initial FB: 0x%llx\n",
- fb->modifier);
- return false;
- }
-
- vma = initial_plane_vma(dev_priv, plane_config);
- if (!vma)
- return false;
-
- mode_cmd.pixel_format = fb->format->format;
- mode_cmd.width = fb->width;
- mode_cmd.height = fb->height;
- mode_cmd.pitches[0] = fb->pitches[0];
- mode_cmd.modifier[0] = fb->modifier;
- mode_cmd.flags = DRM_MODE_FB_MODIFIERS;
-
- if (intel_framebuffer_init(to_intel_framebuffer(fb),
- vma->obj, &mode_cmd)) {
- drm_dbg_kms(&dev_priv->drm, "intel fb init failed\n");
- goto err_vma;
- }
-
- plane_config->vma = vma;
- return true;
-
-err_vma:
- i915_vma_put(vma);
- return false;
-}
-
static void
intel_set_plane_visible(struct intel_crtc_state *crtc_state,
struct intel_plane_state *plane_state,
@@ -1390,8 +1274,8 @@ static void fixup_plane_bitmasks(struct intel_crtc_state *crtc_state)
}
}
-static void intel_plane_disable_noatomic(struct intel_crtc *crtc,
- struct intel_plane *plane)
+void intel_plane_disable_noatomic(struct intel_crtc *crtc,
+ struct intel_plane *plane)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
struct intel_crtc_state *crtc_state =
@@ -1436,123 +1320,6 @@ static void intel_plane_disable_noatomic(struct intel_crtc *crtc,
intel_wait_for_vblank(dev_priv, crtc->pipe);
}
-static bool
-intel_reuse_initial_plane_obj(struct drm_i915_private *i915,
- const struct intel_initial_plane_config *plane_config,
- struct drm_framebuffer **fb,
- struct i915_vma **vma)
-{
- struct intel_crtc *crtc;
-
- for_each_intel_crtc(&i915->drm, crtc) {
- struct intel_crtc_state *crtc_state =
- to_intel_crtc_state(crtc->base.state);
- struct intel_plane *plane =
- to_intel_plane(crtc->base.primary);
- struct intel_plane_state *plane_state =
- to_intel_plane_state(plane->base.state);
-
- if (!crtc_state->uapi.active)
- continue;
-
- if (!plane_state->ggtt_vma)
- continue;
-
- if (intel_plane_ggtt_offset(plane_state) == plane_config->base) {
- *fb = plane_state->hw.fb;
- *vma = plane_state->ggtt_vma;
- return true;
- }
- }
-
- return false;
-}
-
-static void
-intel_find_initial_plane_obj(struct intel_crtc *crtc,
- struct intel_initial_plane_config *plane_config)
-{
- struct drm_device *dev = crtc->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct intel_crtc_state *crtc_state =
- to_intel_crtc_state(crtc->base.state);
- struct intel_plane *plane =
- to_intel_plane(crtc->base.primary);
- struct intel_plane_state *plane_state =
- to_intel_plane_state(plane->base.state);
- struct drm_framebuffer *fb;
- struct i915_vma *vma;
-
- /*
- * TODO:
- * Disable planes if get_initial_plane_config() failed.
- * Make sure things work if the surface base is not page aligned.
- */
- if (!plane_config->fb)
- return;
-
- if (intel_alloc_initial_plane_obj(crtc, plane_config)) {
- fb = &plane_config->fb->base;
- vma = plane_config->vma;
- goto valid_fb;
- }
-
- /*
- * Failed to alloc the obj, check to see if we should share
- * an fb with another CRTC instead
- */
- if (intel_reuse_initial_plane_obj(dev_priv, plane_config, &fb, &vma))
- goto valid_fb;
-
- /*
- * We've failed to reconstruct the BIOS FB. Current display state
- * indicates that the primary plane is visible, but has a NULL FB,
- * which will lead to problems later if we don't fix it up. The
- * simplest solution is to just disable the primary plane now and
- * pretend the BIOS never had it enabled.
- */
- intel_plane_disable_noatomic(crtc, plane);
- if (crtc_state->bigjoiner) {
- struct intel_crtc *slave =
- crtc_state->bigjoiner_linked_crtc;
- intel_plane_disable_noatomic(slave, to_intel_plane(slave->base.primary));
- }
-
- return;
-
-valid_fb:
- plane_state->uapi.rotation = plane_config->rotation;
- intel_fb_fill_view(to_intel_framebuffer(fb),
- plane_state->uapi.rotation, &plane_state->view);
-
- __i915_vma_pin(vma);
- plane_state->ggtt_vma = i915_vma_get(vma);
- if (intel_plane_uses_fence(plane_state) &&
- i915_vma_pin_fence(vma) == 0 && vma->fence)
- plane_state->flags |= PLANE_HAS_FENCE;
-
- plane_state->uapi.src_x = 0;
- plane_state->uapi.src_y = 0;
- plane_state->uapi.src_w = fb->width << 16;
- plane_state->uapi.src_h = fb->height << 16;
-
- plane_state->uapi.crtc_x = 0;
- plane_state->uapi.crtc_y = 0;
- plane_state->uapi.crtc_w = fb->width;
- plane_state->uapi.crtc_h = fb->height;
-
- if (plane_config->tiling)
- dev_priv->preserve_bios_swizzle = true;
-
- plane_state->uapi.fb = fb;
- drm_framebuffer_get(fb);
-
- plane_state->uapi.crtc = &crtc->base;
- intel_plane_copy_uapi_to_hw_state(plane_state, plane_state, crtc);
-
- atomic_or(plane->frontbuffer_bit, &to_intel_frontbuffer(fb)->bits);
-}
-
unsigned int
intel_plane_fence_y_offset(const struct intel_plane_state *plane_state)
{
@@ -11373,22 +11140,6 @@ static void intel_mode_config_cleanup(struct drm_i915_private *i915)
drm_mode_config_cleanup(&i915->drm);
}
-static void plane_config_fini(struct intel_initial_plane_config *plane_config)
-{
- if (plane_config->fb) {
- struct drm_framebuffer *fb = &plane_config->fb->base;
-
- /* We may only have the stub and not a full framebuffer */
- if (drm_framebuffer_read_refcount(fb))
- drm_framebuffer_put(fb);
- else
- kfree(fb);
- }
-
- if (plane_config->vma)
- i915_vma_put(plane_config->vma);
-}
-
/* part #1: call before irq install */
int intel_modeset_init_noirq(struct drm_i915_private *i915)
{
@@ -11460,30 +11211,6 @@ int intel_modeset_init_noirq(struct drm_i915_private *i915)
return ret;
}
-static void
-intel_crtc_initial_plane_config(struct intel_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- struct intel_initial_plane_config plane_config = {};
-
- /*
- * Note that reserving the BIOS fb up front prevents us
- * from stuffing other stolen allocations like the ring
- * on top. This prevents some ugliness at boot time, and
- * can even allow for smooth boot transitions if the BIOS
- * fb is large enough for the active pipe configuration.
- */
- dev_priv->display->get_initial_plane_config(crtc, &plane_config);
-
- /*
- * If the fb is shared between multiple heads, we'll
- * just get the first one.
- */
- intel_find_initial_plane_obj(crtc, &plane_config);
-
- plane_config_fini(&plane_config);
-}
-
/* part #2: call after irq install, but before gem init */
int intel_modeset_init_nogem(struct drm_i915_private *i915)
{
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index d655d996d465..38afc758d7d4 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -625,6 +625,8 @@ void intel_plane_unpin_fb(struct intel_plane_state *old_plane_state);
struct intel_encoder *
intel_get_crtc_new_encoder(const struct intel_atomic_state *state,
const struct intel_crtc_state *crtc_state);
+void intel_plane_disable_noatomic(struct intel_crtc *crtc,
+ struct intel_plane *plane);
void intel_display_driver_register(struct drm_i915_private *i915);
void intel_display_driver_unregister(struct drm_i915_private *i915);
diff --git a/drivers/gpu/drm/i915/display/intel_plane_initial.c b/drivers/gpu/drm/i915/display/intel_plane_initial.c
new file mode 100644
index 000000000000..dcd698a02da2
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_plane_initial.c
@@ -0,0 +1,283 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2021 Intel Corporation
+ */
+
+#include "intel_display_types.h"
+#include "intel_plane_initial.h"
+#include "intel_atomic_plane.h"
+#include "intel_display.h"
+#include "intel_fb.h"
+
+static bool
+intel_reuse_initial_plane_obj(struct drm_i915_private *i915,
+ const struct intel_initial_plane_config *plane_config,
+ struct drm_framebuffer **fb,
+ struct i915_vma **vma)
+{
+ struct intel_crtc *crtc;
+
+ for_each_intel_crtc(&i915->drm, crtc) {
+ struct intel_crtc_state *crtc_state =
+ to_intel_crtc_state(crtc->base.state);
+ struct intel_plane *plane =
+ to_intel_plane(crtc->base.primary);
+ struct intel_plane_state *plane_state =
+ to_intel_plane_state(plane->base.state);
+
+ if (!crtc_state->uapi.active)
+ continue;
+
+ if (!plane_state->ggtt_vma)
+ continue;
+
+ if (intel_plane_ggtt_offset(plane_state) == plane_config->base) {
+ *fb = plane_state->hw.fb;
+ *vma = plane_state->ggtt_vma;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static struct i915_vma *
+initial_plane_vma(struct drm_i915_private *i915,
+ struct intel_initial_plane_config *plane_config)
+{
+ struct drm_i915_gem_object *obj;
+ struct i915_vma *vma;
+ u32 base, size;
+
+ if (plane_config->size == 0)
+ return NULL;
+
+ base = round_down(plane_config->base,
+ I915_GTT_MIN_ALIGNMENT);
+ size = round_up(plane_config->base + plane_config->size,
+ I915_GTT_MIN_ALIGNMENT);
+ size -= base;
+
+ /*
+ * If the FB is too big, just don't use it since fbdev is not very
+ * important and we should probably use that space with FBC or other
+ * features.
+ */
+ if (IS_ENABLED(CONFIG_FRAMEBUFFER_CONSOLE) &&
+ size * 2 > i915->stolen_usable_size)
+ return NULL;
+
+ obj = i915_gem_object_create_stolen_for_preallocated(i915, base, size);
+ if (IS_ERR(obj))
+ return NULL;
+
+ /*
+ * Mark it WT ahead of time to avoid changing the
+ * cache_level during fbdev initialization. The
+ * unbind there would get stuck waiting for rcu.
+ */
+ i915_gem_object_set_cache_coherency(obj, HAS_WT(i915) ?
+ I915_CACHE_WT : I915_CACHE_NONE);
+
+ switch (plane_config->tiling) {
+ case I915_TILING_NONE:
+ break;
+ case I915_TILING_X:
+ case I915_TILING_Y:
+ obj->tiling_and_stride =
+ plane_config->fb->base.pitches[0] |
+ plane_config->tiling;
+ break;
+ default:
+ MISSING_CASE(plane_config->tiling);
+ goto err_obj;
+ }
+
+ vma = i915_vma_instance(obj, &i915->ggtt.vm, NULL);
+ if (IS_ERR(vma))
+ goto err_obj;
+
+ if (i915_ggtt_pin(vma, NULL, 0, PIN_MAPPABLE | PIN_OFFSET_FIXED | base))
+ goto err_obj;
+
+ if (i915_gem_object_is_tiled(obj) &&
+ !i915_vma_is_map_and_fenceable(vma))
+ goto err_obj;
+
+ return vma;
+
+err_obj:
+ i915_gem_object_put(obj);
+ return NULL;
+}
+
+static bool
+intel_alloc_initial_plane_obj(struct intel_crtc *crtc,
+ struct intel_initial_plane_config *plane_config)
+{
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ struct drm_mode_fb_cmd2 mode_cmd = { 0 };
+ struct drm_framebuffer *fb = &plane_config->fb->base;
+ struct i915_vma *vma;
+
+ switch (fb->modifier) {
+ case DRM_FORMAT_MOD_LINEAR:
+ case I915_FORMAT_MOD_X_TILED:
+ case I915_FORMAT_MOD_Y_TILED:
+ break;
+ default:
+ drm_dbg(&dev_priv->drm,
+ "Unsupported modifier for initial FB: 0x%llx\n",
+ fb->modifier);
+ return false;
+ }
+
+ vma = initial_plane_vma(dev_priv, plane_config);
+ if (!vma)
+ return false;
+
+ mode_cmd.pixel_format = fb->format->format;
+ mode_cmd.width = fb->width;
+ mode_cmd.height = fb->height;
+ mode_cmd.pitches[0] = fb->pitches[0];
+ mode_cmd.modifier[0] = fb->modifier;
+ mode_cmd.flags = DRM_MODE_FB_MODIFIERS;
+
+ if (intel_framebuffer_init(to_intel_framebuffer(fb),
+ vma->obj, &mode_cmd)) {
+ drm_dbg_kms(&dev_priv->drm, "intel fb init failed\n");
+ goto err_vma;
+ }
+
+ plane_config->vma = vma;
+ return true;
+
+err_vma:
+ i915_vma_put(vma);
+ return false;
+}
+
+static void
+intel_find_initial_plane_obj(struct intel_crtc *crtc,
+ struct intel_initial_plane_config *plane_config)
+{
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ struct intel_crtc_state *crtc_state =
+ to_intel_crtc_state(crtc->base.state);
+ struct intel_plane *plane =
+ to_intel_plane(crtc->base.primary);
+ struct intel_plane_state *plane_state =
+ to_intel_plane_state(plane->base.state);
+ struct drm_framebuffer *fb;
+ struct i915_vma *vma;
+
+ /*
+ * TODO:
+ * Disable planes if get_initial_plane_config() failed.
+ * Make sure things work if the surface base is not page aligned.
+ */
+ if (!plane_config->fb)
+ return;
+
+ if (intel_alloc_initial_plane_obj(crtc, plane_config)) {
+ fb = &plane_config->fb->base;
+ vma = plane_config->vma;
+ goto valid_fb;
+ }
+
+ /*
+ * Failed to alloc the obj, check to see if we should share
+ * an fb with another CRTC instead
+ */
+ if (intel_reuse_initial_plane_obj(dev_priv, plane_config, &fb, &vma))
+ goto valid_fb;
+
+ /*
+ * We've failed to reconstruct the BIOS FB. Current display state
+ * indicates that the primary plane is visible, but has a NULL FB,
+ * which will lead to problems later if we don't fix it up. The
+ * simplest solution is to just disable the primary plane now and
+ * pretend the BIOS never had it enabled.
+ */
+ intel_plane_disable_noatomic(crtc, plane);
+ if (crtc_state->bigjoiner) {
+ struct intel_crtc *slave =
+ crtc_state->bigjoiner_linked_crtc;
+ intel_plane_disable_noatomic(slave, to_intel_plane(slave->base.primary));
+ }
+
+ return;
+
+valid_fb:
+ plane_state->uapi.rotation = plane_config->rotation;
+ intel_fb_fill_view(to_intel_framebuffer(fb),
+ plane_state->uapi.rotation, &plane_state->view);
+
+ __i915_vma_pin(vma);
+ plane_state->ggtt_vma = i915_vma_get(vma);
+ if (intel_plane_uses_fence(plane_state) &&
+ i915_vma_pin_fence(vma) == 0 && vma->fence)
+ plane_state->flags |= PLANE_HAS_FENCE;
+
+ plane_state->uapi.src_x = 0;
+ plane_state->uapi.src_y = 0;
+ plane_state->uapi.src_w = fb->width << 16;
+ plane_state->uapi.src_h = fb->height << 16;
+
+ plane_state->uapi.crtc_x = 0;
+ plane_state->uapi.crtc_y = 0;
+ plane_state->uapi.crtc_w = fb->width;
+ plane_state->uapi.crtc_h = fb->height;
+
+ if (plane_config->tiling)
+ dev_priv->preserve_bios_swizzle = true;
+
+ plane_state->uapi.fb = fb;
+ drm_framebuffer_get(fb);
+
+ plane_state->uapi.crtc = &crtc->base;
+ intel_plane_copy_uapi_to_hw_state(plane_state, plane_state, crtc);
+
+ atomic_or(plane->frontbuffer_bit, &to_intel_frontbuffer(fb)->bits);
+}
+
+static void plane_config_fini(struct intel_initial_plane_config *plane_config)
+{
+ if (plane_config->fb) {
+ struct drm_framebuffer *fb = &plane_config->fb->base;
+
+ /* We may only have the stub and not a full framebuffer */
+ if (drm_framebuffer_read_refcount(fb))
+ drm_framebuffer_put(fb);
+ else
+ kfree(fb);
+ }
+
+ if (plane_config->vma)
+ i915_vma_put(plane_config->vma);
+}
+
+void intel_crtc_initial_plane_config(struct intel_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ struct intel_initial_plane_config plane_config = {};
+
+ /*
+ * Note that reserving the BIOS fb up front prevents us
+ * from stuffing other stolen allocations like the ring
+ * on top. This prevents some ugliness at boot time, and
+ * can even allow for smooth boot transitions if the BIOS
+ * fb is large enough for the active pipe configuration.
+ */
+ dev_priv->display->get_initial_plane_config(crtc, &plane_config);
+
+ /*
+ * If the fb is shared between multiple heads, we'll
+ * just get the first one.
+ */
+ intel_find_initial_plane_obj(crtc, &plane_config);
+
+ plane_config_fini(&plane_config);
+}
diff --git a/drivers/gpu/drm/i915/display/intel_plane_initial.h b/drivers/gpu/drm/i915/display/intel_plane_initial.h
new file mode 100644
index 000000000000..c7e35ab3182b
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_plane_initial.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2021 Intel Corporation
+ */
+
+#ifndef __INTEL_PLANE_INITIAL_H__
+#define __INTEL_PLANE_INITIAL_H__
+
+struct intel_crtc;
+
+void intel_crtc_initial_plane_config(struct intel_crtc *crtc);
+
+#endif
--
2.25.4
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