From: Thomas Zimmermann Date: Thu, 16 Mar 2023 09:37:38 +0000 (+0100) Subject: drm/radeon: Only build fbdev if DRM_FBDEV_EMULATION is set X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9b926bcf26369ffbe347b9e76977f8425dd10f8b;p=linux.git drm/radeon: Only build fbdev if DRM_FBDEV_EMULATION is set Make building fbdev emulation depend on DRM_FBDEV_EMULATION. Also rename the source file to radeon_fbdev.c to align with other fbdev files. Reviewed-by: Alex Deucher Signed-off-by: Thomas Zimmermann Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile index bb4e56f2f1708..a8734b7d04859 100644 --- a/drivers/gpu/drm/radeon/Makefile +++ b/drivers/gpu/drm/radeon/Makefile @@ -36,7 +36,7 @@ radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \ atom.o radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \ radeon_legacy_crtc.o radeon_legacy_encoders.o radeon_connectors.o \ radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.o \ - radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \ + radeon_clocks.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \ radeon_cs.o radeon_bios.o radeon_benchmark.o r100.o r300.o r420.o \ rs400.o rs600.o rs690.o rv515.o r520.o r600.o rv770.o radeon_test.o \ r200.o radeon_legacy_tv.o r600_cs.o \ @@ -76,6 +76,7 @@ radeon-y += \ vce_v1_0.o \ vce_v2_0.o +radeon-$(CONFIG_DRM_FBDEV_EMULATION) += radeon_fbdev.o radeon-$(CONFIG_VGA_SWITCHEROO) += radeon_atpx_handler.o radeon-$(CONFIG_ACPI) += radeon_acpi.o diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c deleted file mode 100644 index fe76e29910efa..0000000000000 --- a/drivers/gpu/drm/radeon/radeon_fb.c +++ /dev/null @@ -1,422 +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 -#include -#include - -#include -#include -#include -#include -#include -#include - -#include "radeon.h" - -static void radeon_fbdev_destroy_pinned_object(struct drm_gem_object *gobj) -{ - struct radeon_bo *rbo = gem_to_radeon_bo(gobj); - int ret; - - ret = radeon_bo_reserve(rbo, false); - if (likely(ret == 0)) { - radeon_bo_kunmap(rbo); - radeon_bo_unpin(rbo); - radeon_bo_unreserve(rbo); - } - drm_gem_object_put(gobj); -} - -static int radeon_fbdev_create_pinned_object(struct drm_fb_helper *fb_helper, - struct drm_mode_fb_cmd2 *mode_cmd, - struct drm_gem_object **gobj_p) -{ - const struct drm_format_info *info; - struct radeon_device *rdev = fb_helper->dev->dev_private; - struct drm_gem_object *gobj = NULL; - struct radeon_bo *rbo = NULL; - bool fb_tiled = false; /* useful for testing */ - u32 tiling_flags = 0; - int ret; - int aligned_size, size; - int height = mode_cmd->height; - u32 cpp; - - info = drm_get_format_info(rdev->ddev, mode_cmd); - cpp = info->cpp[0]; - - /* need to align pitch with crtc limits */ - mode_cmd->pitches[0] = radeon_align_pitch(rdev, mode_cmd->width, cpp, - fb_tiled); - - if (rdev->family >= CHIP_R600) - height = ALIGN(mode_cmd->height, 8); - size = mode_cmd->pitches[0] * height; - aligned_size = ALIGN(size, PAGE_SIZE); - ret = radeon_gem_object_create(rdev, aligned_size, 0, - RADEON_GEM_DOMAIN_VRAM, - 0, true, &gobj); - if (ret) { - pr_err("failed to allocate framebuffer (%d)\n", aligned_size); - return -ENOMEM; - } - rbo = gem_to_radeon_bo(gobj); - - if (fb_tiled) - tiling_flags = RADEON_TILING_MACRO; - -#ifdef __BIG_ENDIAN - switch (cpp) { - case 4: - tiling_flags |= RADEON_TILING_SWAP_32BIT; - break; - case 2: - tiling_flags |= RADEON_TILING_SWAP_16BIT; - break; - default: - break; - } -#endif - - if (tiling_flags) { - ret = radeon_bo_set_tiling_flags(rbo, - tiling_flags | RADEON_TILING_SURFACE, - mode_cmd->pitches[0]); - if (ret) - dev_err(rdev->dev, "FB failed to set tiling flags\n"); - } - - ret = radeon_bo_reserve(rbo, false); - if (unlikely(ret != 0)) - goto err_radeon_fbdev_destroy_pinned_object; - /* Only 27 bit offset for legacy CRTC */ - ret = radeon_bo_pin_restricted(rbo, RADEON_GEM_DOMAIN_VRAM, - ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27, - NULL); - if (ret) { - radeon_bo_unreserve(rbo); - goto err_radeon_fbdev_destroy_pinned_object; - } - if (fb_tiled) - radeon_bo_check_tiling(rbo, 0, 0); - ret = radeon_bo_kmap(rbo, NULL); - radeon_bo_unreserve(rbo); - if (ret) - goto err_radeon_fbdev_destroy_pinned_object; - - *gobj_p = gobj; - return 0; - -err_radeon_fbdev_destroy_pinned_object: - radeon_fbdev_destroy_pinned_object(gobj); - *gobj_p = NULL; - return ret; -} - -/* - * Fbdev ops and struct fb_ops - */ - -static int radeon_fbdev_fb_open(struct fb_info *info, int user) -{ - struct drm_fb_helper *fb_helper = info->par; - struct radeon_device *rdev = fb_helper->dev->dev_private; - int ret; - - ret = pm_runtime_get_sync(rdev->ddev->dev); - if (ret < 0 && ret != -EACCES) - goto err_pm_runtime_mark_last_busy; - - return 0; - -err_pm_runtime_mark_last_busy: - pm_runtime_mark_last_busy(rdev->ddev->dev); - pm_runtime_put_autosuspend(rdev->ddev->dev); - return ret; -} - -static int radeon_fbdev_fb_release(struct fb_info *info, int user) -{ - struct drm_fb_helper *fb_helper = info->par; - struct radeon_device *rdev = fb_helper->dev->dev_private; - - pm_runtime_mark_last_busy(rdev->ddev->dev); - pm_runtime_put_autosuspend(rdev->ddev->dev); - - return 0; -} - -static void radeon_fbdev_fb_destroy(struct fb_info *info) -{ - struct drm_fb_helper *fb_helper = info->par; - struct drm_framebuffer *fb = fb_helper->fb; - struct drm_gem_object *gobj = drm_gem_fb_get_obj(fb, 0); - - drm_fb_helper_fini(fb_helper); - - drm_framebuffer_unregister_private(fb); - drm_framebuffer_cleanup(fb); - kfree(fb); - radeon_fbdev_destroy_pinned_object(gobj); - - drm_client_release(&fb_helper->client); - drm_fb_helper_unprepare(fb_helper); - kfree(fb_helper); -} - -static const struct fb_ops radeon_fbdev_fb_ops = { - .owner = THIS_MODULE, - DRM_FB_HELPER_DEFAULT_OPS, - .fb_open = radeon_fbdev_fb_open, - .fb_release = radeon_fbdev_fb_release, - .fb_read = drm_fb_helper_cfb_read, - .fb_write = drm_fb_helper_cfb_write, - .fb_fillrect = drm_fb_helper_cfb_fillrect, - .fb_copyarea = drm_fb_helper_cfb_copyarea, - .fb_imageblit = drm_fb_helper_cfb_imageblit, - .fb_destroy = radeon_fbdev_fb_destroy, -}; - -/* - * Fbdev helpers and struct drm_fb_helper_funcs - */ - -static int radeon_fbdev_fb_helper_fb_probe(struct drm_fb_helper *fb_helper, - struct drm_fb_helper_surface_size *sizes) -{ - struct radeon_device *rdev = fb_helper->dev->dev_private; - struct drm_mode_fb_cmd2 mode_cmd = { }; - struct fb_info *info; - struct drm_gem_object *gobj; - struct radeon_bo *rbo; - struct drm_framebuffer *fb; - int ret; - unsigned long tmp; - - mode_cmd.width = sizes->surface_width; - mode_cmd.height = sizes->surface_height; - - /* avivo can't scanout real 24bpp */ - if ((sizes->surface_bpp == 24) && ASIC_IS_AVIVO(rdev)) - sizes->surface_bpp = 32; - - mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, - sizes->surface_depth); - - ret = radeon_fbdev_create_pinned_object(fb_helper, &mode_cmd, &gobj); - if (ret) { - DRM_ERROR("failed to create fbcon object %d\n", ret); - return ret; - } - rbo = gem_to_radeon_bo(gobj); - - fb = kzalloc(sizeof(*fb), GFP_KERNEL); - if (!fb) { - ret = -ENOMEM; - goto err_radeon_fbdev_destroy_pinned_object; - } - ret = radeon_framebuffer_init(rdev->ddev, fb, &mode_cmd, gobj); - if (ret) { - DRM_ERROR("failed to initialize framebuffer %d\n", ret); - goto err_kfree; - } - - /* setup helper */ - fb_helper->fb = fb; - - /* okay we have an object now allocate the framebuffer */ - info = drm_fb_helper_alloc_info(fb_helper); - if (IS_ERR(info)) { - ret = PTR_ERR(info); - goto err_drm_framebuffer_unregister_private; - } - - info->fbops = &radeon_fbdev_fb_ops; - info->flags = FBINFO_DEFAULT; - /* radeon resume is fragile and needs a vt switch to help it along */ - info->skip_vt_switch = false; - - drm_fb_helper_fill_info(info, fb_helper, sizes); - - tmp = radeon_bo_gpu_offset(rbo) - rdev->mc.vram_start; - info->fix.smem_start = rdev->mc.aper_base + tmp; - info->fix.smem_len = radeon_bo_size(rbo); - info->screen_base = (__force void __iomem *)rbo->kptr; - info->screen_size = radeon_bo_size(rbo); - - memset_io(info->screen_base, 0, info->screen_size); - - /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ - - DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start); - DRM_INFO("vram apper at 0x%lX\n", (unsigned long)rdev->mc.aper_base); - DRM_INFO("size %lu\n", (unsigned long)radeon_bo_size(rbo)); - DRM_INFO("fb depth is %d\n", fb->format->depth); - DRM_INFO(" pitch is %d\n", fb->pitches[0]); - - return 0; - -err_drm_framebuffer_unregister_private: - fb_helper->fb = NULL; - drm_framebuffer_unregister_private(fb); - drm_framebuffer_cleanup(fb); -err_kfree: - kfree(fb); -err_radeon_fbdev_destroy_pinned_object: - radeon_fbdev_destroy_pinned_object(gobj); - return ret; -} - -static const struct drm_fb_helper_funcs radeon_fbdev_fb_helper_funcs = { - .fb_probe = radeon_fbdev_fb_helper_fb_probe, -}; - -/* - * Fbdev client and struct drm_client_funcs - */ - -static void radeon_fbdev_client_unregister(struct drm_client_dev *client) -{ - struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); - struct drm_device *dev = fb_helper->dev; - struct radeon_device *rdev = dev->dev_private; - - if (fb_helper->info) { - vga_switcheroo_client_fb_set(rdev->pdev, NULL); - drm_fb_helper_unregister_info(fb_helper); - } else { - drm_client_release(&fb_helper->client); - drm_fb_helper_unprepare(fb_helper); - kfree(fb_helper); - } -} - -static int radeon_fbdev_client_restore(struct drm_client_dev *client) -{ - drm_fb_helper_lastclose(client->dev); - vga_switcheroo_process_delayed_switch(); - - return 0; -} - -static int radeon_fbdev_client_hotplug(struct drm_client_dev *client) -{ - struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); - struct drm_device *dev = client->dev; - struct radeon_device *rdev = dev->dev_private; - int ret; - - if (dev->fb_helper) - return drm_fb_helper_hotplug_event(dev->fb_helper); - - ret = drm_fb_helper_init(dev, fb_helper); - if (ret) - goto err_drm_err; - - if (!drm_drv_uses_atomic_modeset(dev)) - drm_helper_disable_unused_functions(dev); - - ret = drm_fb_helper_initial_config(fb_helper); - if (ret) - goto err_drm_fb_helper_fini; - - vga_switcheroo_client_fb_set(rdev->pdev, fb_helper->info); - - return 0; - -err_drm_fb_helper_fini: - drm_fb_helper_fini(fb_helper); -err_drm_err: - drm_err(dev, "Failed to setup radeon fbdev emulation (ret=%d)\n", ret); - return ret; -} - -static const struct drm_client_funcs radeon_fbdev_client_funcs = { - .owner = THIS_MODULE, - .unregister = radeon_fbdev_client_unregister, - .restore = radeon_fbdev_client_restore, - .hotplug = radeon_fbdev_client_hotplug, -}; - -void radeon_fbdev_setup(struct radeon_device *rdev) -{ - struct drm_fb_helper *fb_helper; - int bpp_sel = 32; - int ret; - - if (rdev->mc.real_vram_size <= (8 * 1024 * 1024)) - bpp_sel = 8; - else if (ASIC_IS_RN50(rdev) || rdev->mc.real_vram_size <= (32 * 1024 * 1024)) - bpp_sel = 16; - - fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL); - if (!fb_helper) - return; - drm_fb_helper_prepare(rdev->ddev, fb_helper, bpp_sel, &radeon_fbdev_fb_helper_funcs); - - ret = drm_client_init(rdev->ddev, &fb_helper->client, "radeon-fbdev", - &radeon_fbdev_client_funcs); - if (ret) { - drm_err(rdev->ddev, "Failed to register client: %d\n", ret); - goto err_drm_client_init; - } - - ret = radeon_fbdev_client_hotplug(&fb_helper->client); - if (ret) - drm_dbg_kms(rdev->ddev, "client hotplug ret=%d\n", ret); - - drm_client_register(&fb_helper->client); - - return; - -err_drm_client_init: - drm_fb_helper_unprepare(fb_helper); - kfree(fb_helper); -} - -void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state) -{ - if (rdev->ddev->fb_helper) - drm_fb_helper_set_suspend(rdev->ddev->fb_helper, state); -} - -bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj) -{ - struct drm_fb_helper *fb_helper = rdev->ddev->fb_helper; - struct drm_gem_object *gobj; - - if (!fb_helper) - return false; - - gobj = drm_gem_fb_get_obj(fb_helper->fb, 0); - if (!gobj) - return false; - if (gobj != &robj->tbo.base) - return false; - - return true; -} diff --git a/drivers/gpu/drm/radeon/radeon_fbdev.c b/drivers/gpu/drm/radeon/radeon_fbdev.c new file mode 100644 index 0000000000000..fe76e29910efa --- /dev/null +++ b/drivers/gpu/drm/radeon/radeon_fbdev.c @@ -0,0 +1,422 @@ +/* + * 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 +#include +#include + +#include +#include +#include +#include +#include +#include + +#include "radeon.h" + +static void radeon_fbdev_destroy_pinned_object(struct drm_gem_object *gobj) +{ + struct radeon_bo *rbo = gem_to_radeon_bo(gobj); + int ret; + + ret = radeon_bo_reserve(rbo, false); + if (likely(ret == 0)) { + radeon_bo_kunmap(rbo); + radeon_bo_unpin(rbo); + radeon_bo_unreserve(rbo); + } + drm_gem_object_put(gobj); +} + +static int radeon_fbdev_create_pinned_object(struct drm_fb_helper *fb_helper, + struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object **gobj_p) +{ + const struct drm_format_info *info; + struct radeon_device *rdev = fb_helper->dev->dev_private; + struct drm_gem_object *gobj = NULL; + struct radeon_bo *rbo = NULL; + bool fb_tiled = false; /* useful for testing */ + u32 tiling_flags = 0; + int ret; + int aligned_size, size; + int height = mode_cmd->height; + u32 cpp; + + info = drm_get_format_info(rdev->ddev, mode_cmd); + cpp = info->cpp[0]; + + /* need to align pitch with crtc limits */ + mode_cmd->pitches[0] = radeon_align_pitch(rdev, mode_cmd->width, cpp, + fb_tiled); + + if (rdev->family >= CHIP_R600) + height = ALIGN(mode_cmd->height, 8); + size = mode_cmd->pitches[0] * height; + aligned_size = ALIGN(size, PAGE_SIZE); + ret = radeon_gem_object_create(rdev, aligned_size, 0, + RADEON_GEM_DOMAIN_VRAM, + 0, true, &gobj); + if (ret) { + pr_err("failed to allocate framebuffer (%d)\n", aligned_size); + return -ENOMEM; + } + rbo = gem_to_radeon_bo(gobj); + + if (fb_tiled) + tiling_flags = RADEON_TILING_MACRO; + +#ifdef __BIG_ENDIAN + switch (cpp) { + case 4: + tiling_flags |= RADEON_TILING_SWAP_32BIT; + break; + case 2: + tiling_flags |= RADEON_TILING_SWAP_16BIT; + break; + default: + break; + } +#endif + + if (tiling_flags) { + ret = radeon_bo_set_tiling_flags(rbo, + tiling_flags | RADEON_TILING_SURFACE, + mode_cmd->pitches[0]); + if (ret) + dev_err(rdev->dev, "FB failed to set tiling flags\n"); + } + + ret = radeon_bo_reserve(rbo, false); + if (unlikely(ret != 0)) + goto err_radeon_fbdev_destroy_pinned_object; + /* Only 27 bit offset for legacy CRTC */ + ret = radeon_bo_pin_restricted(rbo, RADEON_GEM_DOMAIN_VRAM, + ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27, + NULL); + if (ret) { + radeon_bo_unreserve(rbo); + goto err_radeon_fbdev_destroy_pinned_object; + } + if (fb_tiled) + radeon_bo_check_tiling(rbo, 0, 0); + ret = radeon_bo_kmap(rbo, NULL); + radeon_bo_unreserve(rbo); + if (ret) + goto err_radeon_fbdev_destroy_pinned_object; + + *gobj_p = gobj; + return 0; + +err_radeon_fbdev_destroy_pinned_object: + radeon_fbdev_destroy_pinned_object(gobj); + *gobj_p = NULL; + return ret; +} + +/* + * Fbdev ops and struct fb_ops + */ + +static int radeon_fbdev_fb_open(struct fb_info *info, int user) +{ + struct drm_fb_helper *fb_helper = info->par; + struct radeon_device *rdev = fb_helper->dev->dev_private; + int ret; + + ret = pm_runtime_get_sync(rdev->ddev->dev); + if (ret < 0 && ret != -EACCES) + goto err_pm_runtime_mark_last_busy; + + return 0; + +err_pm_runtime_mark_last_busy: + pm_runtime_mark_last_busy(rdev->ddev->dev); + pm_runtime_put_autosuspend(rdev->ddev->dev); + return ret; +} + +static int radeon_fbdev_fb_release(struct fb_info *info, int user) +{ + struct drm_fb_helper *fb_helper = info->par; + struct radeon_device *rdev = fb_helper->dev->dev_private; + + pm_runtime_mark_last_busy(rdev->ddev->dev); + pm_runtime_put_autosuspend(rdev->ddev->dev); + + return 0; +} + +static void radeon_fbdev_fb_destroy(struct fb_info *info) +{ + struct drm_fb_helper *fb_helper = info->par; + struct drm_framebuffer *fb = fb_helper->fb; + struct drm_gem_object *gobj = drm_gem_fb_get_obj(fb, 0); + + drm_fb_helper_fini(fb_helper); + + drm_framebuffer_unregister_private(fb); + drm_framebuffer_cleanup(fb); + kfree(fb); + radeon_fbdev_destroy_pinned_object(gobj); + + drm_client_release(&fb_helper->client); + drm_fb_helper_unprepare(fb_helper); + kfree(fb_helper); +} + +static const struct fb_ops radeon_fbdev_fb_ops = { + .owner = THIS_MODULE, + DRM_FB_HELPER_DEFAULT_OPS, + .fb_open = radeon_fbdev_fb_open, + .fb_release = radeon_fbdev_fb_release, + .fb_read = drm_fb_helper_cfb_read, + .fb_write = drm_fb_helper_cfb_write, + .fb_fillrect = drm_fb_helper_cfb_fillrect, + .fb_copyarea = drm_fb_helper_cfb_copyarea, + .fb_imageblit = drm_fb_helper_cfb_imageblit, + .fb_destroy = radeon_fbdev_fb_destroy, +}; + +/* + * Fbdev helpers and struct drm_fb_helper_funcs + */ + +static int radeon_fbdev_fb_helper_fb_probe(struct drm_fb_helper *fb_helper, + struct drm_fb_helper_surface_size *sizes) +{ + struct radeon_device *rdev = fb_helper->dev->dev_private; + struct drm_mode_fb_cmd2 mode_cmd = { }; + struct fb_info *info; + struct drm_gem_object *gobj; + struct radeon_bo *rbo; + struct drm_framebuffer *fb; + int ret; + unsigned long tmp; + + mode_cmd.width = sizes->surface_width; + mode_cmd.height = sizes->surface_height; + + /* avivo can't scanout real 24bpp */ + if ((sizes->surface_bpp == 24) && ASIC_IS_AVIVO(rdev)) + sizes->surface_bpp = 32; + + mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, + sizes->surface_depth); + + ret = radeon_fbdev_create_pinned_object(fb_helper, &mode_cmd, &gobj); + if (ret) { + DRM_ERROR("failed to create fbcon object %d\n", ret); + return ret; + } + rbo = gem_to_radeon_bo(gobj); + + fb = kzalloc(sizeof(*fb), GFP_KERNEL); + if (!fb) { + ret = -ENOMEM; + goto err_radeon_fbdev_destroy_pinned_object; + } + ret = radeon_framebuffer_init(rdev->ddev, fb, &mode_cmd, gobj); + if (ret) { + DRM_ERROR("failed to initialize framebuffer %d\n", ret); + goto err_kfree; + } + + /* setup helper */ + fb_helper->fb = fb; + + /* okay we have an object now allocate the framebuffer */ + info = drm_fb_helper_alloc_info(fb_helper); + if (IS_ERR(info)) { + ret = PTR_ERR(info); + goto err_drm_framebuffer_unregister_private; + } + + info->fbops = &radeon_fbdev_fb_ops; + info->flags = FBINFO_DEFAULT; + /* radeon resume is fragile and needs a vt switch to help it along */ + info->skip_vt_switch = false; + + drm_fb_helper_fill_info(info, fb_helper, sizes); + + tmp = radeon_bo_gpu_offset(rbo) - rdev->mc.vram_start; + info->fix.smem_start = rdev->mc.aper_base + tmp; + info->fix.smem_len = radeon_bo_size(rbo); + info->screen_base = (__force void __iomem *)rbo->kptr; + info->screen_size = radeon_bo_size(rbo); + + memset_io(info->screen_base, 0, info->screen_size); + + /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ + + DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start); + DRM_INFO("vram apper at 0x%lX\n", (unsigned long)rdev->mc.aper_base); + DRM_INFO("size %lu\n", (unsigned long)radeon_bo_size(rbo)); + DRM_INFO("fb depth is %d\n", fb->format->depth); + DRM_INFO(" pitch is %d\n", fb->pitches[0]); + + return 0; + +err_drm_framebuffer_unregister_private: + fb_helper->fb = NULL; + drm_framebuffer_unregister_private(fb); + drm_framebuffer_cleanup(fb); +err_kfree: + kfree(fb); +err_radeon_fbdev_destroy_pinned_object: + radeon_fbdev_destroy_pinned_object(gobj); + return ret; +} + +static const struct drm_fb_helper_funcs radeon_fbdev_fb_helper_funcs = { + .fb_probe = radeon_fbdev_fb_helper_fb_probe, +}; + +/* + * Fbdev client and struct drm_client_funcs + */ + +static void radeon_fbdev_client_unregister(struct drm_client_dev *client) +{ + struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); + struct drm_device *dev = fb_helper->dev; + struct radeon_device *rdev = dev->dev_private; + + if (fb_helper->info) { + vga_switcheroo_client_fb_set(rdev->pdev, NULL); + drm_fb_helper_unregister_info(fb_helper); + } else { + drm_client_release(&fb_helper->client); + drm_fb_helper_unprepare(fb_helper); + kfree(fb_helper); + } +} + +static int radeon_fbdev_client_restore(struct drm_client_dev *client) +{ + drm_fb_helper_lastclose(client->dev); + vga_switcheroo_process_delayed_switch(); + + return 0; +} + +static int radeon_fbdev_client_hotplug(struct drm_client_dev *client) +{ + struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); + struct drm_device *dev = client->dev; + struct radeon_device *rdev = dev->dev_private; + int ret; + + if (dev->fb_helper) + return drm_fb_helper_hotplug_event(dev->fb_helper); + + ret = drm_fb_helper_init(dev, fb_helper); + if (ret) + goto err_drm_err; + + if (!drm_drv_uses_atomic_modeset(dev)) + drm_helper_disable_unused_functions(dev); + + ret = drm_fb_helper_initial_config(fb_helper); + if (ret) + goto err_drm_fb_helper_fini; + + vga_switcheroo_client_fb_set(rdev->pdev, fb_helper->info); + + return 0; + +err_drm_fb_helper_fini: + drm_fb_helper_fini(fb_helper); +err_drm_err: + drm_err(dev, "Failed to setup radeon fbdev emulation (ret=%d)\n", ret); + return ret; +} + +static const struct drm_client_funcs radeon_fbdev_client_funcs = { + .owner = THIS_MODULE, + .unregister = radeon_fbdev_client_unregister, + .restore = radeon_fbdev_client_restore, + .hotplug = radeon_fbdev_client_hotplug, +}; + +void radeon_fbdev_setup(struct radeon_device *rdev) +{ + struct drm_fb_helper *fb_helper; + int bpp_sel = 32; + int ret; + + if (rdev->mc.real_vram_size <= (8 * 1024 * 1024)) + bpp_sel = 8; + else if (ASIC_IS_RN50(rdev) || rdev->mc.real_vram_size <= (32 * 1024 * 1024)) + bpp_sel = 16; + + fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL); + if (!fb_helper) + return; + drm_fb_helper_prepare(rdev->ddev, fb_helper, bpp_sel, &radeon_fbdev_fb_helper_funcs); + + ret = drm_client_init(rdev->ddev, &fb_helper->client, "radeon-fbdev", + &radeon_fbdev_client_funcs); + if (ret) { + drm_err(rdev->ddev, "Failed to register client: %d\n", ret); + goto err_drm_client_init; + } + + ret = radeon_fbdev_client_hotplug(&fb_helper->client); + if (ret) + drm_dbg_kms(rdev->ddev, "client hotplug ret=%d\n", ret); + + drm_client_register(&fb_helper->client); + + return; + +err_drm_client_init: + drm_fb_helper_unprepare(fb_helper); + kfree(fb_helper); +} + +void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state) +{ + if (rdev->ddev->fb_helper) + drm_fb_helper_set_suspend(rdev->ddev->fb_helper, state); +} + +bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj) +{ + struct drm_fb_helper *fb_helper = rdev->ddev->fb_helper; + struct drm_gem_object *gobj; + + if (!fb_helper) + return false; + + gobj = drm_gem_fb_get_obj(fb_helper->fb, 0); + if (!gobj) + return false; + if (gobj != &robj->tbo.base) + return false; + + return true; +} diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h index d81f61e5a95c2..1decdcec02649 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -939,9 +939,20 @@ void dce4_program_fmt(struct drm_encoder *encoder); void dce8_program_fmt(struct drm_encoder *encoder); /* fbdev layer */ +#if defined(CONFIG_DRM_FBDEV_EMULATION) void radeon_fbdev_setup(struct radeon_device *rdev); void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state); bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj); +#else +static inline void radeon_fbdev_setup(struct radeon_device *rdev) +{ } +static inline void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state) +{ } +static inline bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj) +{ + return false; +} +#endif void radeon_crtc_handle_vblank(struct radeon_device *rdev, int crtc_id);