From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB

---
 kernel/drivers/gpu/drm/qxl/qxl_drv.h |  154 +++++++++++++++------------------------------------
 1 files changed, 45 insertions(+), 109 deletions(-)

diff --git a/kernel/drivers/gpu/drm/qxl/qxl_drv.h b/kernel/drivers/gpu/drm/qxl/qxl_drv.h
index 01220d3..aae90a9 100644
--- a/kernel/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/kernel/drivers/gpu/drm/qxl/qxl_drv.h
@@ -23,7 +23,6 @@
  *          Alon Levy
  */
 
-
 #ifndef QXL_DRV_H
 #define QXL_DRV_H
 
@@ -32,21 +31,22 @@
  */
 
 #include <linux/dma-fence.h>
-#include <linux/workqueue.h>
 #include <linux/firmware.h>
 #include <linux/platform_device.h>
+#include <linux/workqueue.h>
 
 #include <drm/drm_crtc.h>
 #include <drm/drm_encoder.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_gem_ttm_helper.h>
+#include <drm/drm_ioctl.h>
 #include <drm/drm_gem.h>
-#include <drm/drmP.h>
+#include <drm/qxl_drm.h>
 #include <drm/ttm/ttm_bo_api.h>
 #include <drm/ttm/ttm_bo_driver.h>
-/* just for ttm_validate_buffer */
 #include <drm/ttm/ttm_execbuf_util.h>
 #include <drm/ttm/ttm_module.h>
 #include <drm/ttm/ttm_placement.h>
-#include <drm/qxl_drm.h>
 
 #include "qxl_dev.h"
 
@@ -65,9 +65,6 @@
 extern int qxl_num_crtc;
 extern int qxl_max_ioctls;
 
-#define DRM_FILE_OFFSET 0x100000000ULL
-#define DRM_FILE_PAGE_OFFSET (DRM_FILE_OFFSET >> PAGE_SHIFT)
-
 #define QXL_INTERRUPT_MASK (\
 	QXL_INTERRUPT_DISPLAY |\
 	QXL_INTERRUPT_CURSOR |\
@@ -75,28 +72,29 @@
 	QXL_INTERRUPT_CLIENT_MONITORS_CONFIG)
 
 struct qxl_bo {
+	struct ttm_buffer_object	tbo;
+
 	/* Protected by gem.mutex */
 	struct list_head		list;
 	/* Protected by tbo.reserved */
 	struct ttm_place		placements[3];
 	struct ttm_placement		placement;
-	struct ttm_buffer_object	tbo;
 	struct ttm_bo_kmap_obj		kmap;
-	unsigned			pin_count;
+	unsigned int pin_count;
 	void				*kptr;
+	unsigned int                    map_count;
 	int                             type;
 
 	/* Constant after initialization */
-	struct drm_gem_object		gem_base;
-	bool is_primary; /* is this now a primary surface */
-	bool is_dumb;
+	unsigned int is_primary:1; /* is this now a primary surface */
+	unsigned int is_dumb:1;
 	struct qxl_bo *shadow;
-	bool hw_surf_alloc;
+	unsigned int hw_surf_alloc:1;
 	struct qxl_surface surf;
 	uint32_t surface_id;
 	struct qxl_release *surf_create;
 };
-#define gem_to_qxl_bo(gobj) container_of((gobj), struct qxl_bo, gem_base)
+#define gem_to_qxl_bo(gobj) container_of((gobj), struct qxl_bo, tbo.base)
 #define to_qxl_bo(tobj) container_of((tobj), struct qxl_bo, tbo)
 
 struct qxl_gem {
@@ -121,35 +119,20 @@
 	struct drm_encoder enc;
 };
 
-struct qxl_framebuffer {
-	struct drm_framebuffer base;
-	struct drm_gem_object *obj;
-};
-
 #define to_qxl_crtc(x) container_of(x, struct qxl_crtc, base)
 #define drm_connector_to_qxl_output(x) container_of(x, struct qxl_output, base)
 #define drm_encoder_to_qxl_output(x) container_of(x, struct qxl_output, enc)
-#define to_qxl_framebuffer(x) container_of(x, struct qxl_framebuffer, base)
 
 struct qxl_mman {
-	struct ttm_bo_global_ref        bo_global_ref;
-	struct drm_global_reference	mem_global_ref;
-	bool				mem_global_referenced;
 	struct ttm_bo_device		bdev;
 };
 
-struct qxl_mode_info {
-	bool mode_config_initialized;
-
-	/* pointer to fbdev info structure */
-	struct qxl_fbdev *qfbdev;
-};
-
-
 struct qxl_memslot {
+	int             index;
+	const char      *name;
 	uint8_t		generation;
 	uint64_t	start_phys_addr;
-	uint64_t	end_phys_addr;
+	uint64_t	size;
 	uint64_t	high_bits;
 };
 
@@ -203,15 +186,10 @@
  */
 struct qxl_debugfs {
 	struct drm_info_list	*files;
-	unsigned		num_files;
+	unsigned int num_files;
 };
 
-int qxl_debugfs_add_files(struct qxl_device *rdev,
-			     struct drm_info_list *files,
-			     unsigned nfiles);
 int qxl_debugfs_fence_init(struct qxl_device *rdev);
-
-struct qxl_device;
 
 struct qxl_device {
 	struct drm_device ddev;
@@ -232,10 +210,7 @@
 	void *ram;
 	struct qxl_mman		mman;
 	struct qxl_gem		gem;
-	struct qxl_mode_info mode_info;
 
-	struct fb_info			*fbdev_info;
-	struct qxl_framebuffer	*fbdev_qfb;
 	void *ram_physical;
 
 	struct qxl_ring *release_ring;
@@ -244,16 +219,12 @@
 
 	struct qxl_ram_header *ram_header;
 
-	bool primary_created;
+	struct qxl_bo *primary_bo;
+	struct qxl_bo *dumb_shadow_bo;
+	struct qxl_head *dumb_heads;
 
-	struct qxl_memslot	*mem_slots;
-	uint8_t		n_mem_slots;
-
-	uint8_t		main_mem_slot;
-	uint8_t		surfaces_mem_slot;
-	uint8_t		slot_id_bits;
-	uint8_t		slot_gen_bits;
-	uint64_t	va_slot_mask;
+	struct qxl_memslot main_slot;
+	struct qxl_memslot surfaces_slot;
 
 	spinlock_t	release_lock;
 	struct idr	release_idr;
@@ -267,7 +238,7 @@
 	atomic_t irq_received_display;
 	atomic_t irq_received_cursor;
 	atomic_t irq_received_io_cmd;
-	unsigned irq_received_error;
+	unsigned int irq_received_error;
 	wait_queue_head_t display_event;
 	wait_queue_head_t cursor_event;
 	wait_queue_head_t io_cmd_event;
@@ -275,7 +246,7 @@
 
 	/* debugfs */
 	struct qxl_debugfs	debugfs[QXL_DEBUGFS_MAX_COMPONENTS];
-	unsigned		debugfs_count;
+	unsigned int debugfs_count;
 
 	struct mutex		update_area_mutex;
 
@@ -299,11 +270,12 @@
 	int monitors_config_height;
 };
 
+#define to_qxl(dev) container_of(dev, struct qxl_device, ddev)
+
 extern const struct drm_ioctl_desc qxl_ioctls[];
 extern int qxl_max_ioctl;
 
-int qxl_device_init(struct qxl_device *qdev, struct drm_driver *drv,
-		    struct pci_dev *pdev);
+int qxl_device_init(struct qxl_device *qdev, struct pci_dev *pdev);
 void qxl_device_fini(struct qxl_device *qdev);
 
 int qxl_modeset_init(struct qxl_device *qdev);
@@ -326,42 +298,20 @@
 void qxl_ring_init_hdr(struct qxl_ring *ring);
 int qxl_check_idle(struct qxl_ring *ring);
 
-static inline void *
-qxl_fb_virtual_address(struct qxl_device *qdev, unsigned long physical)
-{
-	DRM_DEBUG_DRIVER("not implemented (%lu)\n", physical);
-	return 0;
-}
-
 static inline uint64_t
 qxl_bo_physical_address(struct qxl_device *qdev, struct qxl_bo *bo,
 			unsigned long offset)
 {
-	int slot_id = bo->type == QXL_GEM_DOMAIN_VRAM ? qdev->main_mem_slot : qdev->surfaces_mem_slot;
-	struct qxl_memslot *slot = &(qdev->mem_slots[slot_id]);
+	struct qxl_memslot *slot =
+		(bo->tbo.mem.mem_type == TTM_PL_VRAM)
+		? &qdev->main_slot : &qdev->surfaces_slot;
 
-	/* TODO - need to hold one of the locks to read tbo.offset */
-	return slot->high_bits | (bo->tbo.offset + offset);
+       /* TODO - need to hold one of the locks to read bo->tbo.mem.start */
+
+	return slot->high_bits | ((bo->tbo.mem.start << PAGE_SHIFT) + offset);
 }
 
-/* qxl_fb.c */
-#define QXLFB_CONN_LIMIT 1
-
-int qxl_fbdev_init(struct qxl_device *qdev);
-void qxl_fbdev_fini(struct qxl_device *qdev);
-int qxl_get_handle_for_primary_fb(struct qxl_device *qdev,
-				  struct drm_file *file_priv,
-				  uint32_t *handle);
-void qxl_fbdev_set_suspend(struct qxl_device *qdev, int state);
-
 /* qxl_display.c */
-void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb);
-int
-qxl_framebuffer_init(struct drm_device *dev,
-		     struct qxl_framebuffer *rfb,
-		     const struct drm_mode_fb_cmd2 *mode_cmd,
-		     struct drm_gem_object *obj,
-		     const struct drm_framebuffer_funcs *funcs);
 void qxl_display_read_client_monitors_config(struct qxl_device *qdev);
 int qxl_create_monitors_object(struct qxl_device *qdev);
 int qxl_destroy_monitors_object(struct qxl_device *qdev);
@@ -396,11 +346,11 @@
 		       struct drm_device *dev,
 		       uint32_t handle, uint64_t *offset_p);
 
-
 /* qxl ttm */
 int qxl_ttm_init(struct qxl_device *qdev);
 void qxl_ttm_fini(struct qxl_device *qdev);
-int qxl_mmap(struct file *filp, struct vm_area_struct *vma);
+int qxl_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
+			   struct ttm_resource *mem);
 
 /* qxl image */
 
@@ -422,7 +372,6 @@
 /* qxl io operations (qxl_cmd.c) */
 
 void qxl_io_create_primary(struct qxl_device *qdev,
-			   unsigned offset,
 			   struct qxl_bo *bo);
 void qxl_io_destroy_primary(struct qxl_device *qdev);
 void qxl_io_memslot_add(struct qxl_device *qdev, uint8_t id);
@@ -467,22 +416,13 @@
 			  struct qxl_bo **_bo);
 /* qxl drawing commands */
 
-void qxl_draw_opaque_fb(const struct qxl_fb_image *qxl_fb_image,
-			int stride /* filled in if 0 */);
-
 void qxl_draw_dirty_fb(struct qxl_device *qdev,
-		       struct qxl_framebuffer *qxl_fb,
+		       struct drm_framebuffer *fb,
 		       struct qxl_bo *bo,
-		       unsigned flags, unsigned color,
+		       unsigned int flags, unsigned int color,
 		       struct drm_clip_rect *clips,
-		       unsigned num_clips, int inc);
-
-void qxl_draw_fill(struct qxl_draw_fill *qxl_draw_fill_rec);
-
-void qxl_draw_copyarea(struct qxl_device *qdev,
-		       u32 width, u32 height,
-		       u32 sx, u32 sy,
-		       u32 dx, u32 dy);
+		       unsigned int num_clips, int inc,
+		       uint32_t dumb_shadow_offset);
 
 void qxl_release_free(struct qxl_device *qdev,
 		      struct qxl_release *release);
@@ -496,8 +436,8 @@
 
 /* debugfs */
 
-int qxl_debugfs_init(struct drm_minor *minor);
-int qxl_ttm_debugfs_init(struct qxl_device *qdev);
+void qxl_debugfs_init(struct drm_minor *minor);
+void qxl_ttm_debugfs_init(struct qxl_device *qdev);
 
 /* qxl_prime.c */
 int qxl_gem_prime_pin(struct drm_gem_object *obj);
@@ -515,20 +455,16 @@
 int qxl_irq_init(struct qxl_device *qdev);
 irqreturn_t qxl_irq_handler(int irq, void *arg);
 
-/* qxl_fb.c */
-bool qxl_fbdev_qobj_is_fb(struct qxl_device *qdev, struct qxl_bo *qobj);
-
-int qxl_debugfs_add_files(struct qxl_device *qdev,
-			  struct drm_info_list *files,
-			  unsigned nfiles);
+void qxl_debugfs_add_files(struct qxl_device *qdev,
+			   struct drm_info_list *files,
+			   unsigned int nfiles);
 
 int qxl_surface_id_alloc(struct qxl_device *qdev,
 			 struct qxl_bo *surf);
 void qxl_surface_id_dealloc(struct qxl_device *qdev,
 			    uint32_t surface_id);
 int qxl_hw_surface_alloc(struct qxl_device *qdev,
-			 struct qxl_bo *surf,
-			 struct ttm_mem_reg *mem);
+			 struct qxl_bo *surf);
 int qxl_hw_surface_dealloc(struct qxl_device *qdev,
 			   struct qxl_bo *surf);
 

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