diff options
Diffstat (limited to 'drivers/gpu/drm/xe/display/xe_plane_initial.c')
| -rw-r--r-- | drivers/gpu/drm/xe/display/xe_plane_initial.c | 321 |
1 files changed, 0 insertions, 321 deletions
diff --git a/drivers/gpu/drm/xe/display/xe_plane_initial.c b/drivers/gpu/drm/xe/display/xe_plane_initial.c deleted file mode 100644 index 01c105a93bb9..000000000000 --- a/drivers/gpu/drm/xe/display/xe_plane_initial.c +++ /dev/null @@ -1,321 +0,0 @@ -// SPDX-License-Identifier: MIT -/* - * Copyright © 2021 Intel Corporation - */ - -/* for ioread64 */ -#include <linux/io-64-nonatomic-lo-hi.h> - -#include "regs/xe_gtt_defs.h" -#include "xe_ggtt.h" -#include "xe_mmio.h" - -#include "i915_vma.h" -#include "intel_crtc.h" -#include "intel_display.h" -#include "intel_display_core.h" -#include "intel_display_regs.h" -#include "intel_display_types.h" -#include "intel_fb.h" -#include "intel_fb_pin.h" -#include "intel_frontbuffer.h" -#include "intel_plane.h" -#include "intel_plane_initial.h" -#include "xe_bo.h" -#include "xe_vram_types.h" -#include "xe_wa.h" - -#include <generated/xe_device_wa_oob.h> - -void intel_plane_initial_vblank_wait(struct intel_crtc *crtc) -{ - /* Early xe has no irq */ - struct xe_device *xe = to_xe_device(crtc->base.dev); - struct xe_reg pipe_frmtmstmp = XE_REG(i915_mmio_reg_offset(PIPE_FRMTMSTMP(crtc->pipe))); - u32 timestamp; - int ret; - - timestamp = xe_mmio_read32(xe_root_tile_mmio(xe), pipe_frmtmstmp); - - ret = xe_mmio_wait32_not(xe_root_tile_mmio(xe), pipe_frmtmstmp, ~0U, timestamp, 40000U, ×tamp, false); - if (ret < 0) - drm_warn(&xe->drm, "waiting for early vblank failed with %i\n", ret); -} - -static bool -intel_reuse_initial_plane_obj(struct intel_crtc *this, - const struct intel_initial_plane_config plane_configs[], - struct drm_framebuffer **fb) -{ - struct xe_device *xe = to_xe_device(this->base.dev); - struct intel_crtc *crtc; - - for_each_intel_crtc(&xe->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->hw.active) - continue; - - if (!plane_state->ggtt_vma) - continue; - - if (plane_configs[this->pipe].base == plane_configs[crtc->pipe].base) { - *fb = plane_state->hw.fb; - return true; - } - } - - return false; -} - -static struct xe_bo * -initial_plane_bo(struct xe_device *xe, - struct intel_initial_plane_config *plane_config) -{ - struct xe_tile *tile0 = xe_device_get_root_tile(xe); - struct xe_bo *bo; - resource_size_t phys_base; - u32 base, size, flags; - u64 page_size = xe->info.vram_flags & XE_VRAM_FLAGS_NEED64K ? SZ_64K : SZ_4K; - - if (plane_config->size == 0) - return NULL; - - flags = XE_BO_FLAG_SCANOUT | XE_BO_FLAG_GGTT; - - base = round_down(plane_config->base, page_size); - if (IS_DGFX(xe)) { - u64 pte = xe_ggtt_read_pte(tile0->mem.ggtt, base); - - if (!(pte & XE_GGTT_PTE_DM)) { - drm_err(&xe->drm, - "Initial plane programming missing DM bit\n"); - return NULL; - } - - phys_base = pte & ~(page_size - 1); - flags |= XE_BO_FLAG_VRAM0; - - /* - * We don't currently expect this to ever be placed in the - * stolen portion. - */ - if (phys_base >= xe_vram_region_usable_size(tile0->mem.vram)) { - drm_err(&xe->drm, - "Initial plane programming using invalid range, phys_base=%pa\n", - &phys_base); - return NULL; - } - - drm_dbg(&xe->drm, - "Using phys_base=%pa, based on initial plane programming\n", - &phys_base); - } else { - struct ttm_resource_manager *stolen = ttm_manager_type(&xe->ttm, XE_PL_STOLEN); - - if (!stolen) - return NULL; - phys_base = base; - flags |= XE_BO_FLAG_STOLEN; - - if (XE_DEVICE_WA(xe, 22019338487_display)) - return NULL; - - /* - * 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) && - plane_config->size * 2 >> PAGE_SHIFT >= stolen->size) - return NULL; - } - - size = round_up(plane_config->base + plane_config->size, - page_size); - size -= base; - - bo = xe_bo_create_pin_map_at_novm(xe, tile0, size, phys_base, - ttm_bo_type_kernel, flags, 0, false); - if (IS_ERR(bo)) { - drm_dbg(&xe->drm, - "Failed to create bo phys_base=%pa size %u with flags %x: %li\n", - &phys_base, size, flags, PTR_ERR(bo)); - return NULL; - } - - return bo; -} - -static bool -intel_alloc_initial_plane_obj(struct intel_crtc *crtc, - struct intel_initial_plane_config *plane_config) -{ - struct xe_device *xe = to_xe_device(crtc->base.dev); - struct drm_mode_fb_cmd2 mode_cmd = { 0 }; - struct drm_framebuffer *fb = &plane_config->fb->base; - struct xe_bo *bo; - - 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_kms(&xe->drm, - "Unsupported modifier for initial FB: 0x%llx\n", - fb->modifier); - 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; - - bo = initial_plane_bo(xe, plane_config); - if (!bo) - return false; - - if (intel_framebuffer_init(to_intel_framebuffer(fb), - &bo->ttm.base, fb->format, &mode_cmd)) { - drm_dbg_kms(&xe->drm, "intel fb init failed\n"); - goto err_bo; - } - /* Reference handed over to fb */ - xe_bo_put(bo); - - return true; - -err_bo: - xe_bo_unpin_map_no_vm(bo); - return false; -} - -static void -intel_find_initial_plane_obj(struct intel_crtc *crtc, - struct intel_initial_plane_config plane_configs[]) -{ - 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; - else if (!intel_reuse_initial_plane_obj(crtc, plane_configs, &fb)) - goto nofb; - - plane_state->uapi.rotation = plane_config->rotation; - intel_fb_fill_view(to_intel_framebuffer(fb), - plane_state->uapi.rotation, &plane_state->view); - - vma = intel_fb_pin_to_ggtt(fb, &plane_state->view.gtt, - 0, 0, 0, false, &plane_state->flags); - if (IS_ERR(vma)) - goto nofb; - - plane_state->ggtt_vma = vma; - - plane_state->surf = i915_ggtt_offset(plane_state->ggtt_vma); - - 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; - - 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); - - plane_config->vma = vma; - return; - -nofb: - /* - * 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); -} - -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); - } -} - -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) { - const struct intel_crtc_state *crtc_state = - to_intel_crtc_state(crtc->base.state); - struct intel_initial_plane_config *plane_config = - &plane_configs[crtc->pipe]; - - if (!crtc_state->hw.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_plane_initial_vblank_wait(crtc); - - plane_config_fini(plane_config); - } -} |