[RFC PATCH 1/2] drm/i915: Use generic fbdev
Jouni Högander
jouni.hogander at intel.com
Wed Feb 2 12:49:45 UTC 2022
Use generic fbdev emulation Instead of implementing own. Remove
all i915_fbdev code.
Signed-off-by: Jouni Högander <jouni.hogander at intel.com>
---
drivers/gpu/drm/i915/Makefile | 2 -
drivers/gpu/drm/i915/display/intel_display.c | 21 +-
drivers/gpu/drm/i915/display/intel_fbdev.c | 682 -------------------
drivers/gpu/drm/i915/display/intel_fbdev.h | 53 --
drivers/gpu/drm/i915/i915_driver.c | 15 +-
5 files changed, 9 insertions(+), 764 deletions(-)
delete mode 100644 drivers/gpu/drm/i915/display/intel_fbdev.c
delete mode 100644 drivers/gpu/drm/i915/display/intel_fbdev.h
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index a26e6736bebb..ac6ee8ec0d5c 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -242,8 +242,6 @@ i915-y += \
i915-$(CONFIG_ACPI) += \
display/intel_acpi.o \
display/intel_opregion.o
-i915-$(CONFIG_DRM_FBDEV_EMULATION) += \
- display/intel_fbdev.o
# modesetting output/encoder code
i915-y += \
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 75de794185b2..f855e76dd0b2 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -89,7 +89,6 @@
#include "intel_dp_link_training.h"
#include "intel_dpt.h"
#include "intel_fbc.h"
-#include "intel_fbdev.h"
#include "intel_fdi.h"
#include "intel_fifo_underrun.h"
#include "intel_frontbuffer.h"
@@ -9400,7 +9399,7 @@ intel_mode_valid_max_plane_size(struct drm_i915_private *dev_priv,
static const struct drm_mode_config_funcs intel_mode_funcs = {
.fb_create = intel_user_framebuffer_create,
.get_format_info = intel_fb_get_format_info,
- .output_poll_changed = intel_fbdev_output_poll_changed,
+ .output_poll_changed = drm_fb_helper_output_poll_changed,
.mode_valid = intel_mode_valid,
.atomic_check = intel_atomic_check,
.atomic_commit = intel_atomic_commit,
@@ -9912,10 +9911,6 @@ int intel_modeset_init(struct drm_i915_private *i915)
intel_overlay_setup(i915);
- ret = intel_fbdev_init(&i915->drm);
- if (ret)
- return ret;
-
/* Only enable hotplug handling once the fbdev is fully set up. */
intel_hpd_init(i915);
intel_hpd_poll_disable(i915);
@@ -10785,9 +10780,6 @@ void intel_modeset_driver_remove_noirq(struct drm_i915_private *i915)
*/
intel_dp_mst_suspend(i915);
- /* poll work can call into fbdev, hence clean that up afterwards */
- intel_fbdev_fini(i915);
-
intel_unregister_dsm_handler();
intel_fbc_global_disable(i915);
@@ -10855,16 +10847,6 @@ void intel_display_driver_register(struct drm_i915_private *i915)
intel_audio_init(i915);
- /*
- * Some ports require correctly set-up hpd registers for
- * detection to work properly (leading to ghost connected
- * connector status), e.g. VGA on gm45. Hence we can only set
- * up the initial fbdev config after hpd irqs are fully
- * enabled. We do it last so that the async config cannot run
- * before the connectors are registered.
- */
- intel_fbdev_initial_config_async(&i915->drm);
-
/*
* We need to coordinate the hotplugs with the asynchronous
* fbdev configuration, for which we use the
@@ -10878,7 +10860,6 @@ void intel_display_driver_unregister(struct drm_i915_private *i915)
if (!HAS_DISPLAY(i915))
return;
- intel_fbdev_unregister(i915);
intel_audio_deinit(i915);
/*
diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c
deleted file mode 100644
index 41d279db2be6..000000000000
--- a/drivers/gpu/drm/i915/display/intel_fbdev.c
+++ /dev/null
@@ -1,682 +0,0 @@
-/*
- * Copyright © 2007 David Airlie
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * David Airlie
- */
-
-#include <linux/async.h>
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/sysrq.h>
-#include <linux/tty.h>
-#include <linux/vga_switcheroo.h>
-
-#include <drm/drm_crtc.h>
-#include <drm/drm_fb_helper.h>
-#include <drm/drm_fourcc.h>
-
-#include "gem/i915_gem_lmem.h"
-
-#include "i915_drv.h"
-#include "intel_display_types.h"
-#include "intel_fb.h"
-#include "intel_fb_pin.h"
-#include "intel_fbdev.h"
-#include "intel_frontbuffer.h"
-
-static struct intel_frontbuffer *to_frontbuffer(struct intel_fbdev *ifbdev)
-{
- return ifbdev->fb->frontbuffer;
-}
-
-static void intel_fbdev_invalidate(struct intel_fbdev *ifbdev)
-{
- intel_frontbuffer_invalidate(to_frontbuffer(ifbdev), ORIGIN_CPU);
-}
-
-static int intel_fbdev_set_par(struct fb_info *info)
-{
- struct drm_fb_helper *fb_helper = info->par;
- struct intel_fbdev *ifbdev =
- container_of(fb_helper, struct intel_fbdev, helper);
- int ret;
-
- ret = drm_fb_helper_set_par(info);
- if (ret == 0)
- intel_fbdev_invalidate(ifbdev);
-
- return ret;
-}
-
-static int intel_fbdev_blank(int blank, struct fb_info *info)
-{
- struct drm_fb_helper *fb_helper = info->par;
- struct intel_fbdev *ifbdev =
- container_of(fb_helper, struct intel_fbdev, helper);
- int ret;
-
- ret = drm_fb_helper_blank(blank, info);
- if (ret == 0)
- intel_fbdev_invalidate(ifbdev);
-
- return ret;
-}
-
-static int intel_fbdev_pan_display(struct fb_var_screeninfo *var,
- struct fb_info *info)
-{
- struct drm_fb_helper *fb_helper = info->par;
- struct intel_fbdev *ifbdev =
- container_of(fb_helper, struct intel_fbdev, helper);
- int ret;
-
- ret = drm_fb_helper_pan_display(var, info);
- if (ret == 0)
- intel_fbdev_invalidate(ifbdev);
-
- return ret;
-}
-
-static const struct fb_ops intelfb_ops = {
- .owner = THIS_MODULE,
- DRM_FB_HELPER_DEFAULT_OPS,
- .fb_set_par = intel_fbdev_set_par,
- .fb_fillrect = drm_fb_helper_cfb_fillrect,
- .fb_copyarea = drm_fb_helper_cfb_copyarea,
- .fb_imageblit = drm_fb_helper_cfb_imageblit,
- .fb_pan_display = intel_fbdev_pan_display,
- .fb_blank = intel_fbdev_blank,
-};
-
-static int intelfb_alloc(struct drm_fb_helper *helper,
- struct drm_fb_helper_surface_size *sizes)
-{
- struct intel_fbdev *ifbdev =
- container_of(helper, struct intel_fbdev, helper);
- struct drm_framebuffer *fb;
- struct drm_device *dev = helper->dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct drm_mode_fb_cmd2 mode_cmd = {};
- struct drm_i915_gem_object *obj;
- int size;
-
- /* we don't do packed 24bpp */
- if (sizes->surface_bpp == 24)
- sizes->surface_bpp = 32;
-
- mode_cmd.width = sizes->surface_width;
- mode_cmd.height = sizes->surface_height;
-
- mode_cmd.pitches[0] = ALIGN(mode_cmd.width *
- DIV_ROUND_UP(sizes->surface_bpp, 8), 64);
- mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
- sizes->surface_depth);
-
- size = mode_cmd.pitches[0] * mode_cmd.height;
- size = PAGE_ALIGN(size);
-
- obj = ERR_PTR(-ENODEV);
- if (HAS_LMEM(dev_priv)) {
- obj = i915_gem_object_create_lmem(dev_priv, size,
- I915_BO_ALLOC_CONTIGUOUS);
- } else {
- /*
- * 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 (size * 2 < dev_priv->stolen_usable_size)
- obj = i915_gem_object_create_stolen(dev_priv, size);
- if (IS_ERR(obj))
- obj = i915_gem_object_create_shmem(dev_priv, size);
- }
-
- if (IS_ERR(obj)) {
- drm_err(&dev_priv->drm, "failed to allocate framebuffer\n");
- return PTR_ERR(obj);
- }
-
- fb = intel_framebuffer_create(obj, &mode_cmd);
- i915_gem_object_put(obj);
- if (IS_ERR(fb))
- return PTR_ERR(fb);
-
- ifbdev->fb = to_intel_framebuffer(fb);
- return 0;
-}
-
-static int intelfb_create(struct drm_fb_helper *helper,
- struct drm_fb_helper_surface_size *sizes)
-{
- struct intel_fbdev *ifbdev =
- container_of(helper, struct intel_fbdev, helper);
- struct intel_framebuffer *intel_fb = ifbdev->fb;
- struct drm_device *dev = helper->dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
- struct i915_ggtt *ggtt = to_gt(dev_priv)->ggtt;
- const struct i915_ggtt_view view = {
- .type = I915_GGTT_VIEW_NORMAL,
- };
- intel_wakeref_t wakeref;
- struct fb_info *info;
- struct i915_vma *vma;
- unsigned long flags = 0;
- bool prealloc = false;
- void __iomem *vaddr;
- struct drm_i915_gem_object *obj;
- int ret;
-
- if (intel_fb &&
- (sizes->fb_width > intel_fb->base.width ||
- sizes->fb_height > intel_fb->base.height)) {
- drm_dbg_kms(&dev_priv->drm,
- "BIOS fb too small (%dx%d), we require (%dx%d),"
- " releasing it\n",
- intel_fb->base.width, intel_fb->base.height,
- sizes->fb_width, sizes->fb_height);
- drm_framebuffer_put(&intel_fb->base);
- intel_fb = ifbdev->fb = NULL;
- }
- if (!intel_fb || drm_WARN_ON(dev, !intel_fb_obj(&intel_fb->base))) {
- drm_dbg_kms(&dev_priv->drm,
- "no BIOS fb, allocating a new one\n");
- ret = intelfb_alloc(helper, sizes);
- if (ret)
- return ret;
- intel_fb = ifbdev->fb;
- } else {
- drm_dbg_kms(&dev_priv->drm, "re-using BIOS fb\n");
- prealloc = true;
- sizes->fb_width = intel_fb->base.width;
- sizes->fb_height = intel_fb->base.height;
- }
-
- wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
-
- /* Pin the GGTT vma for our access via info->screen_base.
- * This also validates that any existing fb inherited from the
- * BIOS is suitable for own access.
- */
- vma = intel_pin_and_fence_fb_obj(&ifbdev->fb->base, false,
- &view, false, &flags);
- if (IS_ERR(vma)) {
- ret = PTR_ERR(vma);
- goto out_unlock;
- }
-
- info = drm_fb_helper_alloc_fbi(helper);
- if (IS_ERR(info)) {
- drm_err(&dev_priv->drm, "Failed to allocate fb_info\n");
- ret = PTR_ERR(info);
- goto out_unpin;
- }
-
- ifbdev->helper.fb = &ifbdev->fb->base;
-
- info->fbops = &intelfb_ops;
-
- /* setup aperture base/size for vesafb takeover */
- obj = intel_fb_obj(&intel_fb->base);
- if (i915_gem_object_is_lmem(obj)) {
- struct intel_memory_region *mem = obj->mm.region;
-
- info->apertures->ranges[0].base = mem->io_start;
- info->apertures->ranges[0].size = mem->total;
-
- /* Use fbdev's framebuffer from lmem for discrete */
- info->fix.smem_start =
- (unsigned long)(mem->io_start +
- i915_gem_object_get_dma_address(obj, 0));
- info->fix.smem_len = obj->base.size;
- } else {
- info->apertures->ranges[0].base = ggtt->gmadr.start;
- info->apertures->ranges[0].size = ggtt->mappable_end;
-
- /* Our framebuffer is the entirety of fbdev's system memory */
- info->fix.smem_start =
- (unsigned long)(ggtt->gmadr.start + vma->node.start);
- info->fix.smem_len = vma->node.size;
- }
-
- vaddr = i915_vma_pin_iomap(vma);
- if (IS_ERR(vaddr)) {
- drm_err(&dev_priv->drm,
- "Failed to remap framebuffer into virtual memory\n");
- ret = PTR_ERR(vaddr);
- goto out_unpin;
- }
- info->screen_base = vaddr;
- info->screen_size = vma->node.size;
-
- drm_fb_helper_fill_info(info, &ifbdev->helper, sizes);
-
- /* If the object is shmemfs backed, it will have given us zeroed pages.
- * If the object is stolen however, it will be full of whatever
- * garbage was left in there.
- */
- if (!i915_gem_object_is_shmem(vma->obj) && !prealloc)
- memset_io(info->screen_base, 0, info->screen_size);
-
- /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
-
- drm_dbg_kms(&dev_priv->drm, "allocated %dx%d fb: 0x%08x\n",
- ifbdev->fb->base.width, ifbdev->fb->base.height,
- i915_ggtt_offset(vma));
- ifbdev->vma = vma;
- ifbdev->vma_flags = flags;
-
- intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
- vga_switcheroo_client_fb_set(pdev, info);
- return 0;
-
-out_unpin:
- intel_unpin_fb_vma(vma, flags);
-out_unlock:
- intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
- return ret;
-}
-
-static const struct drm_fb_helper_funcs intel_fb_helper_funcs = {
- .fb_probe = intelfb_create,
-};
-
-static void intel_fbdev_destroy(struct intel_fbdev *ifbdev)
-{
- /* We rely on the object-free to release the VMA pinning for
- * the info->screen_base mmaping. Leaking the VMA is simpler than
- * trying to rectify all the possible error paths leading here.
- */
-
- drm_fb_helper_fini(&ifbdev->helper);
-
- if (ifbdev->vma)
- intel_unpin_fb_vma(ifbdev->vma, ifbdev->vma_flags);
-
- if (ifbdev->fb)
- drm_framebuffer_remove(&ifbdev->fb->base);
-
- kfree(ifbdev);
-}
-
-/*
- * Build an intel_fbdev struct using a BIOS allocated framebuffer, if possible.
- * The core display code will have read out the current plane configuration,
- * so we use that to figure out if there's an object for us to use as the
- * fb, and if so, we re-use it for the fbdev configuration.
- *
- * Note we only support a single fb shared across pipes for boot (mostly for
- * fbcon), so we just find the biggest and use that.
- */
-static bool intel_fbdev_init_bios(struct drm_device *dev,
- struct intel_fbdev *ifbdev)
-{
- struct drm_i915_private *i915 = to_i915(dev);
- struct intel_framebuffer *fb = NULL;
- struct intel_crtc *crtc;
- unsigned int max_size = 0;
-
- /* Find the largest fb */
- for_each_intel_crtc(dev, 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);
- struct drm_i915_gem_object *obj =
- intel_fb_obj(plane_state->uapi.fb);
-
- if (!crtc_state->uapi.active) {
- drm_dbg_kms(&i915->drm,
- "[CRTC:%d:%s] not active, skipping\n",
- crtc->base.base.id, crtc->base.name);
- continue;
- }
-
- if (!obj) {
- drm_dbg_kms(&i915->drm,
- "[PLANE:%d:%s] no fb, skipping\n",
- plane->base.base.id, plane->base.name);
- continue;
- }
-
- if (obj->base.size > max_size) {
- drm_dbg_kms(&i915->drm,
- "found possible fb from [PLANE:%d:%s]\n",
- plane->base.base.id, plane->base.name);
- fb = to_intel_framebuffer(plane_state->uapi.fb);
- max_size = obj->base.size;
- }
- }
-
- if (!fb) {
- drm_dbg_kms(&i915->drm,
- "no active fbs found, not using BIOS config\n");
- goto out;
- }
-
- /* Now make sure all the pipes will fit into it */
- for_each_intel_crtc(dev, crtc) {
- struct intel_crtc_state *crtc_state =
- to_intel_crtc_state(crtc->base.state);
- struct intel_plane *plane =
- to_intel_plane(crtc->base.primary);
- unsigned int cur_size;
-
- if (!crtc_state->uapi.active) {
- drm_dbg_kms(&i915->drm,
- "[CRTC:%d:%s] not active, skipping\n",
- crtc->base.base.id, crtc->base.name);
- continue;
- }
-
- drm_dbg_kms(&i915->drm, "checking [PLANE:%d:%s] for BIOS fb\n",
- plane->base.base.id, plane->base.name);
-
- /*
- * See if the plane fb we found above will fit on this
- * pipe. Note we need to use the selected fb's pitch and bpp
- * rather than the current pipe's, since they differ.
- */
- cur_size = crtc_state->uapi.adjusted_mode.crtc_hdisplay;
- cur_size = cur_size * fb->base.format->cpp[0];
- if (fb->base.pitches[0] < cur_size) {
- drm_dbg_kms(&i915->drm,
- "fb not wide enough for [PLANE:%d:%s] (%d vs %d)\n",
- plane->base.base.id, plane->base.name,
- cur_size, fb->base.pitches[0]);
- fb = NULL;
- break;
- }
-
- cur_size = crtc_state->uapi.adjusted_mode.crtc_vdisplay;
- cur_size = intel_fb_align_height(&fb->base, 0, cur_size);
- cur_size *= fb->base.pitches[0];
- drm_dbg_kms(&i915->drm,
- "[CRTC:%d:%s] area: %dx%d, bpp: %d, size: %d\n",
- crtc->base.base.id, crtc->base.name,
- crtc_state->uapi.adjusted_mode.crtc_hdisplay,
- crtc_state->uapi.adjusted_mode.crtc_vdisplay,
- fb->base.format->cpp[0] * 8,
- cur_size);
-
- if (cur_size > max_size) {
- drm_dbg_kms(&i915->drm,
- "fb not big enough for [PLANE:%d:%s] (%d vs %d)\n",
- plane->base.base.id, plane->base.name,
- cur_size, max_size);
- fb = NULL;
- break;
- }
-
- drm_dbg_kms(&i915->drm,
- "fb big enough [PLANE:%d:%s] (%d >= %d)\n",
- plane->base.base.id, plane->base.name,
- max_size, cur_size);
- }
-
- if (!fb) {
- drm_dbg_kms(&i915->drm,
- "BIOS fb not suitable for all pipes, not using\n");
- goto out;
- }
-
- ifbdev->preferred_bpp = fb->base.format->cpp[0] * 8;
- ifbdev->fb = fb;
-
- drm_framebuffer_get(&ifbdev->fb->base);
-
- /* Final pass to check if any active pipes don't have fbs */
- for_each_intel_crtc(dev, 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;
-
- drm_WARN(dev, !plane_state->uapi.fb,
- "re-used BIOS config but lost an fb on [PLANE:%d:%s]\n",
- plane->base.base.id, plane->base.name);
- }
-
-
- drm_dbg_kms(&i915->drm, "using BIOS fb for initial console\n");
- return true;
-
-out:
-
- return false;
-}
-
-static void intel_fbdev_suspend_worker(struct work_struct *work)
-{
- intel_fbdev_set_suspend(&container_of(work,
- struct drm_i915_private,
- fbdev_suspend_work)->drm,
- FBINFO_STATE_RUNNING,
- true);
-}
-
-int intel_fbdev_init(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct intel_fbdev *ifbdev;
- int ret;
-
- if (drm_WARN_ON(dev, !HAS_DISPLAY(dev_priv)))
- return -ENODEV;
-
- ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL);
- if (ifbdev == NULL)
- return -ENOMEM;
-
- mutex_init(&ifbdev->hpd_lock);
- drm_fb_helper_prepare(dev, &ifbdev->helper, &intel_fb_helper_funcs);
-
- if (!intel_fbdev_init_bios(dev, ifbdev))
- ifbdev->preferred_bpp = 32;
-
- ret = drm_fb_helper_init(dev, &ifbdev->helper);
- if (ret) {
- kfree(ifbdev);
- return ret;
- }
-
- dev_priv->fbdev = ifbdev;
- INIT_WORK(&dev_priv->fbdev_suspend_work, intel_fbdev_suspend_worker);
-
- return 0;
-}
-
-static void intel_fbdev_initial_config(void *data, async_cookie_t cookie)
-{
- struct intel_fbdev *ifbdev = data;
-
- /* Due to peculiar init order wrt to hpd handling this is separate. */
- if (drm_fb_helper_initial_config(&ifbdev->helper,
- ifbdev->preferred_bpp))
- intel_fbdev_unregister(to_i915(ifbdev->helper.dev));
-}
-
-void intel_fbdev_initial_config_async(struct drm_device *dev)
-{
- struct intel_fbdev *ifbdev = to_i915(dev)->fbdev;
-
- if (!ifbdev)
- return;
-
- ifbdev->cookie = async_schedule(intel_fbdev_initial_config, ifbdev);
-}
-
-static void intel_fbdev_sync(struct intel_fbdev *ifbdev)
-{
- if (!ifbdev->cookie)
- return;
-
- /* Only serialises with all preceding async calls, hence +1 */
- async_synchronize_cookie(ifbdev->cookie + 1);
- ifbdev->cookie = 0;
-}
-
-void intel_fbdev_unregister(struct drm_i915_private *dev_priv)
-{
- struct intel_fbdev *ifbdev = dev_priv->fbdev;
-
- if (!ifbdev)
- return;
-
- cancel_work_sync(&dev_priv->fbdev_suspend_work);
- if (!current_is_async())
- intel_fbdev_sync(ifbdev);
-
- drm_fb_helper_unregister_fbi(&ifbdev->helper);
-}
-
-void intel_fbdev_fini(struct drm_i915_private *dev_priv)
-{
- struct intel_fbdev *ifbdev = fetch_and_zero(&dev_priv->fbdev);
-
- if (!ifbdev)
- return;
-
- intel_fbdev_destroy(ifbdev);
-}
-
-/* Suspends/resumes fbdev processing of incoming HPD events. When resuming HPD
- * processing, fbdev will perform a full connector reprobe if a hotplug event
- * was received while HPD was suspended.
- */
-static void intel_fbdev_hpd_set_suspend(struct drm_i915_private *i915, int state)
-{
- struct intel_fbdev *ifbdev = i915->fbdev;
- bool send_hpd = false;
-
- mutex_lock(&ifbdev->hpd_lock);
- ifbdev->hpd_suspended = state == FBINFO_STATE_SUSPENDED;
- send_hpd = !ifbdev->hpd_suspended && ifbdev->hpd_waiting;
- ifbdev->hpd_waiting = false;
- mutex_unlock(&ifbdev->hpd_lock);
-
- if (send_hpd) {
- drm_dbg_kms(&i915->drm, "Handling delayed fbcon HPD event\n");
- drm_fb_helper_hotplug_event(&ifbdev->helper);
- }
-}
-
-void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
-{
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct intel_fbdev *ifbdev = dev_priv->fbdev;
- struct fb_info *info;
-
- if (!ifbdev || !ifbdev->vma)
- return;
-
- info = ifbdev->helper.fbdev;
-
- if (synchronous) {
- /* Flush any pending work to turn the console on, and then
- * wait to turn it off. It must be synchronous as we are
- * about to suspend or unload the driver.
- *
- * Note that from within the work-handler, we cannot flush
- * ourselves, so only flush outstanding work upon suspend!
- */
- if (state != FBINFO_STATE_RUNNING)
- flush_work(&dev_priv->fbdev_suspend_work);
-
- console_lock();
- } else {
- /*
- * The console lock can be pretty contented on resume due
- * to all the printk activity. Try to keep it out of the hot
- * path of resume if possible.
- */
- drm_WARN_ON(dev, state != FBINFO_STATE_RUNNING);
- if (!console_trylock()) {
- /* Don't block our own workqueue as this can
- * be run in parallel with other i915.ko tasks.
- */
- schedule_work(&dev_priv->fbdev_suspend_work);
- return;
- }
- }
-
- /* On resume from hibernation: If the object is shmemfs backed, it has
- * been restored from swap. If the object is stolen however, it will be
- * full of whatever garbage was left in there.
- */
- if (state == FBINFO_STATE_RUNNING &&
- !i915_gem_object_is_shmem(intel_fb_obj(&ifbdev->fb->base)))
- memset_io(info->screen_base, 0, info->screen_size);
-
- drm_fb_helper_set_suspend(&ifbdev->helper, state);
- console_unlock();
-
- intel_fbdev_hpd_set_suspend(dev_priv, state);
-}
-
-void intel_fbdev_output_poll_changed(struct drm_device *dev)
-{
- struct intel_fbdev *ifbdev = to_i915(dev)->fbdev;
- bool send_hpd;
-
- if (!ifbdev)
- return;
-
- intel_fbdev_sync(ifbdev);
-
- mutex_lock(&ifbdev->hpd_lock);
- send_hpd = !ifbdev->hpd_suspended;
- ifbdev->hpd_waiting = true;
- mutex_unlock(&ifbdev->hpd_lock);
-
- if (send_hpd && (ifbdev->vma || ifbdev->helper.deferred_setup))
- drm_fb_helper_hotplug_event(&ifbdev->helper);
-}
-
-void intel_fbdev_restore_mode(struct drm_device *dev)
-{
- struct intel_fbdev *ifbdev = to_i915(dev)->fbdev;
-
- if (!ifbdev)
- return;
-
- intel_fbdev_sync(ifbdev);
- if (!ifbdev->vma)
- return;
-
- if (drm_fb_helper_restore_fbdev_mode_unlocked(&ifbdev->helper) == 0)
- intel_fbdev_invalidate(ifbdev);
-}
diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.h b/drivers/gpu/drm/i915/display/intel_fbdev.h
deleted file mode 100644
index de7c84250eb5..000000000000
--- a/drivers/gpu/drm/i915/display/intel_fbdev.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/* SPDX-License-Identifier: MIT */
-/*
- * Copyright © 2019 Intel Corporation
- */
-
-#ifndef __INTEL_FBDEV_H__
-#define __INTEL_FBDEV_H__
-
-#include <linux/types.h>
-
-struct drm_device;
-struct drm_i915_private;
-
-#ifdef CONFIG_DRM_FBDEV_EMULATION
-int intel_fbdev_init(struct drm_device *dev);
-void intel_fbdev_initial_config_async(struct drm_device *dev);
-void intel_fbdev_unregister(struct drm_i915_private *dev_priv);
-void intel_fbdev_fini(struct drm_i915_private *dev_priv);
-void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous);
-void intel_fbdev_output_poll_changed(struct drm_device *dev);
-void intel_fbdev_restore_mode(struct drm_device *dev);
-#else
-static inline int intel_fbdev_init(struct drm_device *dev)
-{
- return 0;
-}
-
-static inline void intel_fbdev_initial_config_async(struct drm_device *dev)
-{
-}
-
-static inline void intel_fbdev_unregister(struct drm_i915_private *dev_priv)
-{
-}
-
-static inline void intel_fbdev_fini(struct drm_i915_private *dev_priv)
-{
-}
-
-static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
-{
-}
-
-static inline void intel_fbdev_output_poll_changed(struct drm_device *dev)
-{
-}
-
-static inline void intel_fbdev_restore_mode(struct drm_device *dev)
-{
-}
-#endif
-
-#endif /* __INTEL_FBDEV_H__ */
diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index 3d41f532a5d6..2793ca7bae66 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -52,7 +52,6 @@
#include "display/intel_dmc.h"
#include "display/intel_dp.h"
#include "display/intel_dpt.h"
-#include "display/intel_fbdev.h"
#include "display/intel_hotplug.h"
#include "display/intel_overlay.h"
#include "display/intel_pch_refclk.h"
@@ -701,6 +700,8 @@ static void i915_driver_register(struct drm_i915_private *dev_priv)
return;
}
+ drm_fbdev_generic_setup(&dev_priv->drm, 32);
+
i915_debugfs_register(dev_priv);
i915_setup_sysfs(dev_priv);
@@ -1011,8 +1012,6 @@ static void i915_driver_lastclose(struct drm_device *dev)
{
struct drm_i915_private *i915 = to_i915(dev);
- intel_fbdev_restore_mode(dev);
-
if (HAS_DISPLAY(i915))
vga_switcheroo_process_delayed_switch();
}
@@ -1128,6 +1127,9 @@ static int i915_drm_suspend(struct drm_device *dev)
struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
pci_power_t opregion_target_state;
+ drm_fb_helper_set_suspend_unlocked(dev->fb_helper,
+ true);
+
disable_rpm_wakeref_asserts(&dev_priv->runtime_pm);
/* We do a lot of poking in a lot of registers, make sure they work
@@ -1158,8 +1160,6 @@ static int i915_drm_suspend(struct drm_device *dev)
opregion_target_state = suspend_to_idle(dev_priv) ? PCI_D1 : PCI_D3cold;
intel_opregion_suspend(dev_priv, opregion_target_state);
- intel_fbdev_set_suspend(dev, FBINFO_STATE_SUSPENDED, true);
-
dev_priv->suspend_count++;
intel_dmc_ucode_suspend(dev_priv);
@@ -1317,14 +1317,15 @@ static int i915_drm_resume(struct drm_device *dev)
intel_opregion_resume(dev_priv);
- intel_fbdev_set_suspend(dev, FBINFO_STATE_RUNNING, false);
-
intel_power_domains_enable(dev_priv);
intel_gvt_resume(dev_priv);
enable_rpm_wakeref_asserts(&dev_priv->runtime_pm);
+ drm_fb_helper_set_suspend_unlocked(dev->fb_helper,
+ false);
+
return 0;
}
--
2.25.1
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