1 files changed, 0 insertions, 449 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_plane_initial.c b/drivers/gpu/drm/i915/display/intel_plane_initial.c
deleted file mode 100644
index 6789b7f14095..000000000000
--- a/drivers/gpu/drm/i915/display/intel_plane_initial.c
+++ /dev/null
@@ -1,449 +0,0 @@
-// SPDX-License-Identifier: MIT
-/*
- * Copyright © 2021 Intel Corporation
- */
-
-#include "gem/i915_gem_lmem.h"
-#include "gem/i915_gem_region.h"
-#include "i915_drv.h"
-#include "intel_atomic_plane.h"
-#include "intel_crtc.h"
-#include "intel_display.h"
-#include "intel_display_types.h"
-#include "intel_fb.h"
-#include "intel_frontbuffer.h"
-#include "intel_plane_initial.h"
-
-static bool
-intel_reuse_initial_plane_obj(struct intel_crtc *this,
-			      const struct intel_initial_plane_config plane_configs[],
-			      struct drm_framebuffer **fb,
-			      struct i915_vma **vma)
-{
-	struct intel_display *display = to_intel_display(this);
-	struct intel_crtc *crtc;
-
-	for_each_intel_crtc(display->drm, crtc) {
-		struct intel_plane *plane =
-			to_intel_plane(crtc->base.primary);
-		const struct intel_plane_state *plane_state =
-			to_intel_plane_state(plane->base.state);
-		const struct intel_crtc_state *crtc_state =
-			to_intel_crtc_state(crtc->base.state);
-
-		if (!crtc_state->uapi.active)
-			continue;
-
-		if (!plane_state->ggtt_vma)
-			continue;
-
-		if (plane_configs[this->pipe].base == plane_configs[crtc->pipe].base) {
-			*fb = plane_state->hw.fb;
-			*vma = plane_state->ggtt_vma;
-			return true;
-		}
-	}
-
-	return false;
-}
-
-static bool
-initial_plane_phys_lmem(struct intel_display *display,
-			struct intel_initial_plane_config *plane_config)
-{
-	struct drm_i915_private *i915 = to_i915(display->drm);
-	gen8_pte_t __iomem *gte = to_gt(i915)->ggtt->gsm;
-	struct intel_memory_region *mem;
-	dma_addr_t dma_addr;
-	gen8_pte_t pte;
-	u32 base;
-
-	base = round_down(plane_config->base, I915_GTT_MIN_ALIGNMENT);
-
-	gte += base / I915_GTT_PAGE_SIZE;
-
-	pte = ioread64(gte);
-	if (!(pte & GEN12_GGTT_PTE_LM)) {
-		drm_err(display->drm,
-			"Initial plane programming missing PTE_LM bit\n");
-		return false;
-	}
-
-	dma_addr = pte & GEN12_GGTT_PTE_ADDR_MASK;
-
-	if (IS_DGFX(i915))
-		mem = i915->mm.regions[INTEL_REGION_LMEM_0];
-	else
-		mem = i915->mm.stolen_region;
-	if (!mem) {
-		drm_dbg_kms(display->drm,
-			    "Initial plane memory region not initialized\n");
-		return false;
-	}
-
-	/*
-	 * On lmem we don't currently expect this to
-	 * ever be placed in the stolen portion.
-	 */
-	if (dma_addr < mem->region.start || dma_addr > mem->region.end) {
-		drm_err(display->drm,
-			"Initial plane programming using invalid range, dma_addr=%pa (%s [%pa-%pa])\n",
-			&dma_addr, mem->region.name, &mem->region.start, &mem->region.end);
-		return false;
-	}
-
-	drm_dbg(display->drm,
-		"Using dma_addr=%pa, based on initial plane programming\n",
-		&dma_addr);
-
-	plane_config->phys_base = dma_addr - mem->region.start;
-	plane_config->mem = mem;
-
-	return true;
-}
-
-static bool
-initial_plane_phys_smem(struct intel_display *display,
-			struct intel_initial_plane_config *plane_config)
-{
-	struct drm_i915_private *i915 = to_i915(display->drm);
-	struct intel_memory_region *mem;
-	u32 base;
-
-	base = round_down(plane_config->base, I915_GTT_MIN_ALIGNMENT);
-
-	mem = i915->mm.stolen_region;
-	if (!mem) {
-		drm_dbg_kms(display->drm,
-			    "Initial plane memory region not initialized\n");
-		return false;
-	}
-
-	/* FIXME get and validate the dma_addr from the PTE */
-	plane_config->phys_base = base;
-	plane_config->mem = mem;
-
-	return true;
-}
-
-static bool
-initial_plane_phys(struct intel_display *display,
-		   struct intel_initial_plane_config *plane_config)
-{
-	struct drm_i915_private *i915 = to_i915(display->drm);
-
-	if (IS_DGFX(i915) || HAS_LMEMBAR_SMEM_STOLEN(i915))
-		return initial_plane_phys_lmem(display, plane_config);
-	else
-		return initial_plane_phys_smem(display, plane_config);
-}
-
-static struct i915_vma *
-initial_plane_vma(struct intel_display *display,
-		  struct intel_initial_plane_config *plane_config)
-{
-	struct drm_i915_private *i915 = to_i915(display->drm);
-	struct intel_memory_region *mem;
-	struct drm_i915_gem_object *obj;
-	struct drm_mm_node orig_mm = {};
-	struct i915_vma *vma;
-	resource_size_t phys_base;
-	u32 base, size;
-	u64 pinctl;
-
-	if (plane_config->size == 0)
-		return NULL;
-
-	if (!initial_plane_phys(display, plane_config))
-		return NULL;
-
-	phys_base = plane_config->phys_base;
-	mem = plane_config->mem;
-
-	base = round_down(plane_config->base, I915_GTT_MIN_ALIGNMENT);
-	size = round_up(plane_config->base + plane_config->size,
-			mem->min_page_size);
-	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) &&
-	    mem == i915->mm.stolen_region &&
-	    size * 2 > i915->dsm.usable_size) {
-		drm_dbg_kms(display->drm, "Initial FB size exceeds half of stolen, discarding\n");
-		return NULL;
-	}
-
-	obj = i915_gem_object_create_region_at(mem, phys_base, size,
-					       I915_BO_ALLOC_USER |
-					       I915_BO_PREALLOC);
-	if (IS_ERR(obj)) {
-		drm_dbg_kms(display->drm, "Failed to preallocate initial FB in %s\n",
-			    mem->region.name);
-		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;
-	}
-
-	/*
-	 * MTL GOP likes to place the framebuffer high up in ggtt,
-	 * which can cause problems for ggtt_reserve_guc_top().
-	 * Try to pin it to a low ggtt address instead to avoid that.
-	 */
-	base = 0;
-
-	if (base != plane_config->base) {
-		struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
-		int ret;
-
-		/*
-		 * Make sure the original and new locations
-		 * can't overlap. That would corrupt the original
-		 * PTEs which are still being used for scanout.
-		 */
-		ret = i915_gem_gtt_reserve(&ggtt->vm, NULL, &orig_mm,
-					   size, plane_config->base,
-					   I915_COLOR_UNEVICTABLE, PIN_NOEVICT);
-		if (ret)
-			goto err_obj;
-	}
-
-	vma = i915_vma_instance(obj, &to_gt(i915)->ggtt->vm, NULL);
-	if (IS_ERR(vma))
-		goto err_obj;
-
-retry:
-	pinctl = PIN_GLOBAL | PIN_OFFSET_FIXED | base;
-	if (!i915_gem_object_is_lmem(obj))
-		pinctl |= PIN_MAPPABLE;
-	if (i915_vma_pin(vma, 0, 0, pinctl)) {
-		if (drm_mm_node_allocated(&orig_mm)) {
-			drm_mm_remove_node(&orig_mm);
-			/*
-			 * Try again, but this time pin
-			 * it to its original location.
-			 */
-			base = plane_config->base;
-			goto retry;
-		}
-		goto err_obj;
-	}
-
-	if (i915_gem_object_is_tiled(obj) &&
-	    !i915_vma_is_map_and_fenceable(vma))
-		goto err_obj;
-
-	if (drm_mm_node_allocated(&orig_mm))
-		drm_mm_remove_node(&orig_mm);
-
-	drm_dbg_kms(display->drm,
-		    "Initial plane fb bound to 0x%x in the ggtt (original 0x%x)\n",
-		    i915_ggtt_offset(vma), plane_config->base);
-
-	return vma;
-
-err_obj:
-	if (drm_mm_node_allocated(&orig_mm))
-		drm_mm_remove_node(&orig_mm);
-	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 intel_display *display = to_intel_display(crtc);
-	struct drm_mode_fb_cmd2 mode_cmd = {};
-	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:
-	case I915_FORMAT_MOD_4_TILED:
-		break;
-	default:
-		drm_dbg(display->drm,
-			"Unsupported modifier for initial FB: 0x%llx\n",
-			fb->modifier);
-		return false;
-	}
-
-	vma = initial_plane_vma(display, 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),
-				   intel_bo_to_drm_bo(vma->obj), &mode_cmd)) {
-		drm_dbg_kms(display->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_configs[])
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	struct intel_initial_plane_config *plane_config =
-		&plane_configs[crtc->pipe];
-	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(crtc, plane_configs, &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);
-
-	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_initial_plane_config(struct intel_display *display)
-{
-	struct intel_initial_plane_config plane_configs[I915_MAX_PIPES] = {};
-	struct intel_crtc *crtc;
-
-	for_each_intel_crtc(display->drm, crtc) {
-		struct intel_initial_plane_config *plane_config =
-			&plane_configs[crtc->pipe];
-
-		if (!to_intel_crtc_state(crtc->base.state)->uapi.active)
-			continue;
-
-		/*
-		 * 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.
-		 */
-		display->funcs.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_configs);
-
-		if (display->funcs.display->fixup_initial_plane_config(crtc, plane_config))
-			intel_crtc_wait_for_next_vblank(crtc);
-
-		plane_config_fini(plane_config);
-	}
-}