#include <drm/drm_fourcc.h>
#include <drm/drm_gem_framebuffer_helper.h>
-#include "gem/i915_gem_lmem.h"
#include "gem/i915_gem_mman.h"
#include "i915_drv.h"
#include "intel_fb.h"
#include "intel_fb_pin.h"
#include "intel_fbdev.h"
+#include "intel_fbdev_fb.h"
#include "intel_frontbuffer.h"
struct intel_fbdev {
.fb_mmap = intel_fbdev_mmap,
};
-static int intelfb_alloc(struct drm_fb_helper *helper,
- struct drm_fb_helper_surface_size *sizes)
-{
- struct intel_fbdev *ifbdev = to_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 |
- I915_BO_ALLOC_USER);
- } 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.
- *
- * Also skip stolen on MTL as Wa_22018444074 mitigation.
- */
- if (!(IS_METEORLAKE(dev_priv)) && size * 2 < dev_priv->dsm.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 (%pe)\n", obj);
- 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 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_gtt_view view = {
.type = I915_GTT_VIEW_NORMAL,
};
struct i915_vma *vma;
unsigned long flags = 0;
bool prealloc = false;
- void __iomem *vaddr;
struct drm_i915_gem_object *obj;
- struct i915_gem_ww_ctx ww;
int ret;
mutex_lock(&ifbdev->hpd_lock);
intel_fb = ifbdev->fb = NULL;
}
if (!intel_fb || drm_WARN_ON(dev, !intel_fb_obj(&intel_fb->base))) {
+ struct drm_framebuffer *fb;
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;
+ fb = intel_fbdev_fb_alloc(helper, sizes);
+ if (IS_ERR(fb))
+ return PTR_ERR(fb);
+ intel_fb = ifbdev->fb = to_intel_framebuffer(fb);
} else {
drm_dbg_kms(&dev_priv->drm, "re-using BIOS fb\n");
prealloc = true;
info->fbops = &intelfb_ops;
obj = intel_fb_obj(&intel_fb->base);
- if (i915_gem_object_is_lmem(obj)) {
- struct intel_memory_region *mem = obj->mm.region;
-
- /* 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 {
- /* Our framebuffer is the entirety of fbdev's system memory */
- info->fix.smem_start =
- (unsigned long)(ggtt->gmadr.start + i915_ggtt_offset(vma));
- info->fix.smem_len = vma->size;
- }
-
- for_i915_gem_ww(&ww, ret, false) {
- ret = i915_gem_object_lock(vma->obj, &ww);
-
- if (ret)
- continue;
-
- vaddr = i915_vma_pin_iomap(vma);
- if (IS_ERR(vaddr)) {
- drm_err(&dev_priv->drm,
- "Failed to remap framebuffer into virtual memory (%pe)\n", vaddr);
- ret = PTR_ERR(vaddr);
- continue;
- }
- }
+ ret = intel_fbdev_fb_fill_info(dev_priv, info, obj, vma);
if (ret)
goto out_unpin;
- info->screen_base = vaddr;
- info->screen_size = vma->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)
+ if (!i915_gem_object_is_shmem(obj) && !prealloc)
memset_io(info->screen_base, 0, info->screen_size);
/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
--- /dev/null
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include <drm/drm_fb_helper.h>
+
+#include "gem/i915_gem_lmem.h"
+
+#include "i915_drv.h"
+#include "intel_display_types.h"
+#include "intel_fbdev_fb.h"
+
+struct drm_framebuffer *intel_fbdev_fb_alloc(struct drm_fb_helper *helper,
+ struct drm_fb_helper_surface_size *sizes)
+{
+ 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 |
+ I915_BO_ALLOC_USER);
+ } 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.
+ *
+ * Also skip stolen on MTL as Wa_22018444074 mitigation.
+ */
+ if (!(IS_METEORLAKE(dev_priv)) && size * 2 < dev_priv->dsm.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 (%pe)\n", obj);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ fb = intel_framebuffer_create(obj, &mode_cmd);
+ i915_gem_object_put(obj);
+
+ return fb;
+}
+
+int intel_fbdev_fb_fill_info(struct drm_i915_private *i915, struct fb_info *info,
+ struct drm_i915_gem_object *obj, struct i915_vma *vma)
+{
+ struct i915_gem_ww_ctx ww;
+ void __iomem *vaddr;
+ int ret;
+
+ if (i915_gem_object_is_lmem(obj)) {
+ struct intel_memory_region *mem = obj->mm.region;
+
+ /* 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 {
+ struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
+
+ /* Our framebuffer is the entirety of fbdev's system memory */
+ info->fix.smem_start =
+ (unsigned long)(ggtt->gmadr.start + i915_ggtt_offset(vma));
+ info->fix.smem_len = vma->size;
+ }
+
+ for_i915_gem_ww(&ww, ret, false) {
+ ret = i915_gem_object_lock(vma->obj, &ww);
+
+ if (ret)
+ continue;
+
+ vaddr = i915_vma_pin_iomap(vma);
+ if (IS_ERR(vaddr)) {
+ drm_err(&i915->drm,
+ "Failed to remap framebuffer into virtual memory (%pe)\n", vaddr);
+ ret = PTR_ERR(vaddr);
+ continue;
+ }
+ }
+
+ if (ret)
+ return ret;
+
+ info->screen_base = vaddr;
+ info->screen_size = intel_bo_to_drm_bo(obj)->size;
+
+ return 0;
+}
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