Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 5db08c8..c8a8ae2 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -36,23 +36,13 @@
#include <drm/drm_crtc.h>
#include <drm/drm_device.h>
#include <linux/kgdb.h>
+#include <linux/vgaarb.h>
enum mode_set_atomic {
LEAVE_ATOMIC_MODE_SET,
ENTER_ATOMIC_MODE_SET,
};
-struct drm_fb_offset {
- int x, y;
-};
-
-struct drm_fb_helper_crtc {
- struct drm_mode_set mode_set;
- struct drm_display_mode *desired_mode;
- int x, y;
- int rotation;
-};
-
/**
* struct drm_fb_helper_surface_size - describes fbdev size and scanout surface size
* @fb_width: fbdev width
@@ -67,10 +57,8 @@
* according to the largest width/height (so it is large enough for all CRTCs
* to scanout). But the fbdev width/height is sized to the minimum width/
* height of all the displays. This ensures that fbcon fits on the smallest
- * of the attached displays.
- *
- * So what is passed to drm_fb_helper_fill_var() should be fb_width/fb_height,
- * rather than the surface size.
+ * of the attached displays. fb_width/fb_height is used by
+ * drm_fb_helper_fill_info() to fill out the &fb_info.var structure.
*/
struct drm_fb_helper_surface_size {
u32 fb_width;
@@ -103,43 +91,12 @@
*/
int (*fb_probe)(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes);
-
- /**
- * @initial_config:
- *
- * Driver callback to setup an initial fbdev display configuration.
- * Drivers can use this callback to tell the fbdev emulation what the
- * preferred initial configuration is. This is useful to implement
- * smooth booting where the fbdev (and subsequently all userspace) never
- * changes the mode, but always inherits the existing configuration.
- *
- * This callback is optional.
- *
- * RETURNS:
- *
- * The driver should return true if a suitable initial configuration has
- * been filled out and false when the fbdev helper should fall back to
- * the default probing logic.
- */
- bool (*initial_config)(struct drm_fb_helper *fb_helper,
- struct drm_fb_helper_crtc **crtcs,
- struct drm_display_mode **modes,
- struct drm_fb_offset *offsets,
- bool *enabled, int width, int height);
-};
-
-struct drm_fb_helper_connector {
- struct drm_connector *connector;
};
/**
* struct drm_fb_helper - main structure to emulate fbdev on top of KMS
* @fb: Scanout framebuffer object
* @dev: DRM device
- * @crtc_count: number of possible CRTCs
- * @crtc_info: per-CRTC helper state (mode, x/y offset, etc)
- * @connector_count: number of connected connectors
- * @connector_info_alloc_count: size of connector_info
* @funcs: driver callbacks for fb helper
* @fbdev: emulated fbdev device info struct
* @pseudo_palette: fake palette of 16 colors
@@ -171,24 +128,6 @@
struct drm_framebuffer *fb;
struct drm_device *dev;
- int crtc_count;
- struct drm_fb_helper_crtc *crtc_info;
- int connector_count;
- int connector_info_alloc_count;
- /**
- * @sw_rotations:
- * Bitmask of all rotations requested for panel-orientation which
- * could not be handled in hardware. If only one bit is set
- * fbdev->fbcon_rotate_hint gets set to the requested rotation.
- */
- int sw_rotations;
- /**
- * @connector_info:
- *
- * Array of per-connector information. Do not iterate directly, but use
- * drm_fb_helper_for_each_connector.
- */
- struct drm_fb_helper_connector **connector_info;
const struct drm_fb_helper_funcs *funcs;
struct fb_info *fbdev;
u32 pseudo_palette[17];
@@ -288,10 +227,9 @@
struct fb_info *drm_fb_helper_alloc_fbi(struct drm_fb_helper *fb_helper);
void drm_fb_helper_unregister_fbi(struct drm_fb_helper *fb_helper);
-void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
- uint32_t fb_width, uint32_t fb_height);
-void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
- uint32_t depth);
+void drm_fb_helper_fill_info(struct fb_info *info,
+ struct drm_fb_helper *fb_helper,
+ struct drm_fb_helper_surface_size *sizes);
void drm_fb_helper_unlink_fbi(struct drm_fb_helper *fb_helper);
@@ -329,18 +267,8 @@
int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
-int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
int drm_fb_helper_debug_enter(struct fb_info *info);
int drm_fb_helper_debug_leave(struct fb_info *info);
-struct drm_display_mode *
-drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector,
- int width, int height);
-struct drm_display_mode *
-drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn);
-
-int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_connector *connector);
-int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
- struct drm_connector *connector);
int drm_fb_helper_fbdev_setup(struct drm_device *dev,
struct drm_fb_helper *fb_helper,
@@ -417,14 +345,10 @@
{
}
-static inline void drm_fb_helper_fill_var(struct fb_info *info,
- struct drm_fb_helper *fb_helper,
- uint32_t fb_width, uint32_t fb_height)
-{
-}
-
-static inline void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
- uint32_t depth)
+static inline void
+drm_fb_helper_fill_info(struct fb_info *info,
+ struct drm_fb_helper *fb_helper,
+ struct drm_fb_helper_surface_size *sizes)
{
}
@@ -519,12 +443,6 @@
return 0;
}
-static inline int
-drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
-{
- return 0;
-}
-
static inline int drm_fb_helper_debug_enter(struct fb_info *info)
{
return 0;
@@ -535,34 +453,6 @@
return 0;
}
-static inline struct drm_display_mode *
-drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector,
- int width, int height)
-{
- return NULL;
-}
-
-static inline struct drm_display_mode *
-drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn,
- int width, int height)
-{
- return NULL;
-}
-
-static inline int
-drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,
- struct drm_connector *connector)
-{
- return 0;
-}
-
-static inline int
-drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
- struct drm_connector *connector)
-{
- return 0;
-}
-
static inline int
drm_fb_helper_fbdev_setup(struct drm_device *dev,
struct drm_fb_helper *fb_helper,
@@ -604,6 +494,37 @@
#endif
+/* TODO: There's a todo entry to remove these three */
+static inline int
+drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
+{
+ return 0;
+}
+
+static inline int
+drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,
+ struct drm_connector *connector)
+{
+ return 0;
+}
+
+static inline int
+drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
+ struct drm_connector *connector)
+{
+ return 0;
+}
+
+/**
+ * drm_fb_helper_remove_conflicting_framebuffers - remove firmware-configured framebuffers
+ * @a: memory range, users of which are to be removed
+ * @name: requesting driver name
+ * @primary: also kick vga16fb if present
+ *
+ * This function removes framebuffer devices (initialized by firmware/bootloader)
+ * which use memory range described by @a. If @a is NULL all such devices are
+ * removed.
+ */
static inline int
drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
const char *name, bool primary)
@@ -615,4 +536,35 @@
#endif
}
+/**
+ * drm_fb_helper_remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices
+ * @pdev: PCI device
+ * @resource_id: index of PCI BAR configuring framebuffer memory
+ * @name: requesting driver name
+ *
+ * This function removes framebuffer devices (eg. initialized by firmware)
+ * using memory range configured for @pdev's BAR @resource_id.
+ *
+ * The function assumes that PCI device with shadowed ROM drives a primary
+ * display and so kicks out vga16fb.
+ */
+static inline int
+drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
+ int resource_id,
+ const char *name)
+{
+ int ret = 0;
+
+ /*
+ * WARNING: Apparently we must kick fbdev drivers before vgacon,
+ * otherwise the vga fbdev driver falls over.
+ */
+#if IS_REACHABLE(CONFIG_FB)
+ ret = remove_conflicting_pci_framebuffers(pdev, resource_id, name);
+#endif
+ if (ret == 0)
+ ret = vga_remove_vgacon(pdev);
+ return ret;
+}
+
#endif