drm/vmwgfx: Add DRM driver for VMware Virtual GPU
This commit adds the vmwgfx driver for the VWware Virtual GPU aka SVGA.
The driver is under staging the same as Nouveau and Radeon KMS. Hopefully
the 2D ioctls are bug free and don't need changing, so that part of the
API should be stable. But there there is a pretty big chance that the 3D API
will change in the future.
Signed-off-by: Thomas Hellström <thellstrom@vmware.com>
Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
new file mode 100644
index 0000000..43546d0
--- /dev/null
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -0,0 +1,511 @@
+/**************************************************************************
+ *
+ * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+#ifndef _VMWGFX_DRV_H_
+#define _VMWGFX_DRV_H_
+
+#include "vmwgfx_reg.h"
+#include "drmP.h"
+#include "vmwgfx_drm.h"
+#include "drm_hashtab.h"
+#include "ttm/ttm_bo_driver.h"
+#include "ttm/ttm_object.h"
+#include "ttm/ttm_lock.h"
+#include "ttm/ttm_execbuf_util.h"
+#include "ttm/ttm_module.h"
+
+#define VMWGFX_DRIVER_DATE "20090724"
+#define VMWGFX_DRIVER_MAJOR 0
+#define VMWGFX_DRIVER_MINOR 1
+#define VMWGFX_DRIVER_PATCHLEVEL 2
+#define VMWGFX_FILE_PAGE_OFFSET 0x00100000
+#define VMWGFX_FIFO_STATIC_SIZE (1024*1024)
+#define VMWGFX_MAX_RELOCATIONS 2048
+#define VMWGFX_MAX_GMRS 2048
+
+struct vmw_fpriv {
+ struct drm_master *locked_master;
+ struct ttm_object_file *tfile;
+};
+
+struct vmw_dma_buffer {
+ struct ttm_buffer_object base;
+ struct list_head validate_list;
+ struct list_head gmr_lru;
+ uint32_t gmr_id;
+ bool gmr_bound;
+ uint32_t cur_validate_node;
+ bool on_validate_list;
+};
+
+struct vmw_resource {
+ struct kref kref;
+ struct vmw_private *dev_priv;
+ struct idr *idr;
+ int id;
+ enum ttm_object_type res_type;
+ bool avail;
+ void (*hw_destroy) (struct vmw_resource *res);
+ void (*res_free) (struct vmw_resource *res);
+
+ /* TODO is a generic snooper needed? */
+#if 0
+ void (*snoop)(struct vmw_resource *res,
+ struct ttm_object_file *tfile,
+ SVGA3dCmdHeader *header);
+ void *snoop_priv;
+#endif
+};
+
+struct vmw_cursor_snooper {
+ struct drm_crtc *crtc;
+ size_t age;
+ uint32_t *image;
+};
+
+struct vmw_surface {
+ struct vmw_resource res;
+ uint32_t flags;
+ uint32_t format;
+ uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
+ struct drm_vmw_size *sizes;
+ uint32_t num_sizes;
+
+ /* TODO so far just a extra pointer */
+ struct vmw_cursor_snooper snooper;
+};
+
+struct vmw_fifo_state {
+ unsigned long reserved_size;
+ __le32 *dynamic_buffer;
+ __le32 *static_buffer;
+ __le32 *last_buffer;
+ uint32_t last_data_size;
+ uint32_t last_buffer_size;
+ bool last_buffer_add;
+ unsigned long static_buffer_size;
+ bool using_bounce_buffer;
+ uint32_t capabilities;
+ struct rw_semaphore rwsem;
+};
+
+struct vmw_relocation {
+ SVGAGuestPtr *location;
+ uint32_t index;
+};
+
+struct vmw_sw_context{
+ struct ida bo_list;
+ uint32_t last_cid;
+ bool cid_valid;
+ uint32_t last_sid;
+ bool sid_valid;
+ struct ttm_object_file *tfile;
+ struct list_head validate_nodes;
+ struct vmw_relocation relocs[VMWGFX_MAX_RELOCATIONS];
+ uint32_t cur_reloc;
+ struct ttm_validate_buffer val_bufs[VMWGFX_MAX_GMRS];
+ uint32_t cur_val_buf;
+};
+
+struct vmw_legacy_display;
+struct vmw_overlay;
+
+struct vmw_master {
+ struct ttm_lock lock;
+};
+
+struct vmw_private {
+ struct ttm_bo_device bdev;
+ struct ttm_bo_global_ref bo_global_ref;
+ struct ttm_global_reference mem_global_ref;
+
+ struct vmw_fifo_state fifo;
+
+ struct drm_device *dev;
+ unsigned long vmw_chipset;
+ unsigned int io_start;
+ uint32_t vram_start;
+ uint32_t vram_size;
+ uint32_t mmio_start;
+ uint32_t mmio_size;
+ uint32_t fb_max_width;
+ uint32_t fb_max_height;
+ __le32 __iomem *mmio_virt;
+ int mmio_mtrr;
+ uint32_t capabilities;
+ uint32_t max_gmr_descriptors;
+ uint32_t max_gmr_ids;
+ struct mutex hw_mutex;
+
+ /*
+ * VGA registers.
+ */
+
+ uint32_t vga_width;
+ uint32_t vga_height;
+ uint32_t vga_depth;
+ uint32_t vga_bpp;
+ uint32_t vga_pseudo;
+ uint32_t vga_red_mask;
+ uint32_t vga_blue_mask;
+ uint32_t vga_green_mask;
+
+ /*
+ * Framebuffer info.
+ */
+
+ void *fb_info;
+ struct vmw_legacy_display *ldu_priv;
+ struct vmw_overlay *overlay_priv;
+
+ /*
+ * Context and surface management.
+ */
+
+ rwlock_t resource_lock;
+ struct idr context_idr;
+ struct idr surface_idr;
+ struct idr stream_idr;
+
+ /*
+ * Block lastclose from racing with firstopen.
+ */
+
+ struct mutex init_mutex;
+
+ /*
+ * A resource manager for kernel-only surfaces and
+ * contexts.
+ */
+
+ struct ttm_object_device *tdev;
+
+ /*
+ * Fencing and IRQs.
+ */
+
+ uint32_t fence_seq;
+ wait_queue_head_t fence_queue;
+ wait_queue_head_t fifo_queue;
+ atomic_t fence_queue_waiters;
+ atomic_t fifo_queue_waiters;
+ uint32_t last_read_sequence;
+ spinlock_t irq_lock;
+
+ /*
+ * Device state
+ */
+
+ uint32_t traces_state;
+ uint32_t enable_state;
+ uint32_t config_done_state;
+
+ /**
+ * Execbuf
+ */
+ /**
+ * Protected by the cmdbuf mutex.
+ */
+
+ struct vmw_sw_context ctx;
+ uint32_t val_seq;
+ struct mutex cmdbuf_mutex;
+
+ /**
+ * GMR management. Protected by the lru spinlock.
+ */
+
+ struct ida gmr_ida;
+ struct list_head gmr_lru;
+
+
+ /**
+ * Operating mode.
+ */
+
+ bool stealth;
+ bool is_opened;
+
+ /**
+ * Master management.
+ */
+
+ struct vmw_master *active_master;
+ struct vmw_master fbdev_master;
+};
+
+static inline struct vmw_private *vmw_priv(struct drm_device *dev)
+{
+ return (struct vmw_private *)dev->dev_private;
+}
+
+static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv)
+{
+ return (struct vmw_fpriv *)file_priv->driver_priv;
+}
+
+static inline struct vmw_master *vmw_master(struct drm_master *master)
+{
+ return (struct vmw_master *) master->driver_priv;
+}
+
+static inline void vmw_write(struct vmw_private *dev_priv,
+ unsigned int offset, uint32_t value)
+{
+ outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
+ outl(value, dev_priv->io_start + VMWGFX_VALUE_PORT);
+}
+
+static inline uint32_t vmw_read(struct vmw_private *dev_priv,
+ unsigned int offset)
+{
+ uint32_t val;
+
+ outl(offset, dev_priv->io_start + VMWGFX_INDEX_PORT);
+ val = inl(dev_priv->io_start + VMWGFX_VALUE_PORT);
+ return val;
+}
+
+/**
+ * GMR utilities - vmwgfx_gmr.c
+ */
+
+extern int vmw_gmr_bind(struct vmw_private *dev_priv,
+ struct ttm_buffer_object *bo);
+extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);
+
+/**
+ * Resource utilities - vmwgfx_resource.c
+ */
+
+extern struct vmw_resource *vmw_context_alloc(struct vmw_private *dev_priv);
+extern void vmw_resource_unreference(struct vmw_resource **p_res);
+extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
+extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int vmw_context_check(struct vmw_private *dev_priv,
+ struct ttm_object_file *tfile,
+ int id);
+extern void vmw_surface_res_free(struct vmw_resource *res);
+extern int vmw_surface_init(struct vmw_private *dev_priv,
+ struct vmw_surface *srf,
+ void (*res_free) (struct vmw_resource *res));
+extern int vmw_user_surface_lookup(struct vmw_private *dev_priv,
+ struct ttm_object_file *tfile,
+ int sid, struct vmw_surface **out);
+extern int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int vmw_surface_check(struct vmw_private *dev_priv,
+ struct ttm_object_file *tfile,
+ int id);
+extern void vmw_dmabuf_bo_free(struct ttm_buffer_object *bo);
+extern int vmw_dmabuf_init(struct vmw_private *dev_priv,
+ struct vmw_dma_buffer *vmw_bo,
+ size_t size, struct ttm_placement *placement,
+ bool interuptable,
+ void (*bo_free) (struct ttm_buffer_object *bo));
+extern int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int vmw_dmabuf_unref_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern uint32_t vmw_dmabuf_validate_node(struct ttm_buffer_object *bo,
+ uint32_t cur_validate_node);
+extern void vmw_dmabuf_validate_clear(struct ttm_buffer_object *bo);
+extern int vmw_user_dmabuf_lookup(struct ttm_object_file *tfile,
+ uint32_t id, struct vmw_dma_buffer **out);
+extern uint32_t vmw_dmabuf_gmr(struct ttm_buffer_object *bo);
+extern void vmw_dmabuf_set_gmr(struct ttm_buffer_object *bo, uint32_t id);
+extern int vmw_gmr_id_alloc(struct vmw_private *dev_priv, uint32_t *p_id);
+extern int vmw_dmabuf_to_start_of_vram(struct vmw_private *vmw_priv,
+ struct vmw_dma_buffer *bo);
+extern int vmw_dmabuf_from_vram(struct vmw_private *vmw_priv,
+ struct vmw_dma_buffer *bo);
+extern int vmw_stream_claim_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int vmw_stream_unref_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int vmw_user_stream_lookup(struct vmw_private *dev_priv,
+ struct ttm_object_file *tfile,
+ uint32_t *inout_id,
+ struct vmw_resource **out);
+
+
+/**
+ * Misc Ioctl functionality - vmwgfx_ioctl.c
+ */
+
+extern int vmw_getparam_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int vmw_fifo_debug_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+/**
+ * Fifo utilities - vmwgfx_fifo.c
+ */
+
+extern int vmw_fifo_init(struct vmw_private *dev_priv,
+ struct vmw_fifo_state *fifo);
+extern void vmw_fifo_release(struct vmw_private *dev_priv,
+ struct vmw_fifo_state *fifo);
+extern void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes);
+extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes);
+extern int vmw_fifo_send_fence(struct vmw_private *dev_priv,
+ uint32_t *sequence);
+extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
+extern int vmw_fifo_mmap(struct file *filp, struct vm_area_struct *vma);
+
+/**
+ * TTM glue - vmwgfx_ttm_glue.c
+ */
+
+extern int vmw_ttm_global_init(struct vmw_private *dev_priv);
+extern void vmw_ttm_global_release(struct vmw_private *dev_priv);
+extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);
+
+/**
+ * TTM buffer object driver - vmwgfx_buffer.c
+ */
+
+extern struct ttm_placement vmw_vram_placement;
+extern struct ttm_placement vmw_vram_ne_placement;
+extern struct ttm_placement vmw_sys_placement;
+extern struct ttm_bo_driver vmw_bo_driver;
+extern int vmw_dma_quiescent(struct drm_device *dev);
+
+/**
+ * Command submission - vmwgfx_execbuf.c
+ */
+
+extern int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+/**
+ * IRQs and wating - vmwgfx_irq.c
+ */
+
+extern irqreturn_t vmw_irq_handler(DRM_IRQ_ARGS);
+extern int vmw_wait_fence(struct vmw_private *dev_priv, bool lazy,
+ uint32_t sequence, bool interruptible,
+ unsigned long timeout);
+extern void vmw_irq_preinstall(struct drm_device *dev);
+extern int vmw_irq_postinstall(struct drm_device *dev);
+extern void vmw_irq_uninstall(struct drm_device *dev);
+extern bool vmw_fence_signaled(struct vmw_private *dev_priv,
+ uint32_t sequence);
+extern int vmw_fence_wait_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int vmw_fallback_wait(struct vmw_private *dev_priv,
+ bool lazy,
+ bool fifo_idle,
+ uint32_t sequence,
+ bool interruptible,
+ unsigned long timeout);
+
+/**
+ * Kernel framebuffer - vmwgfx_fb.c
+ */
+
+int vmw_fb_init(struct vmw_private *vmw_priv);
+int vmw_fb_close(struct vmw_private *dev_priv);
+int vmw_fb_off(struct vmw_private *vmw_priv);
+int vmw_fb_on(struct vmw_private *vmw_priv);
+
+/**
+ * Kernel modesetting - vmwgfx_kms.c
+ */
+
+int vmw_kms_init(struct vmw_private *dev_priv);
+int vmw_kms_close(struct vmw_private *dev_priv);
+int vmw_kms_save_vga(struct vmw_private *vmw_priv);
+int vmw_kms_restore_vga(struct vmw_private *vmw_priv);
+int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv);
+void vmw_kms_cursor_snoop(struct vmw_surface *srf,
+ struct ttm_object_file *tfile,
+ struct ttm_buffer_object *bo,
+ SVGA3dCmdHeader *header);
+
+/**
+ * Overlay control - vmwgfx_overlay.c
+ */
+
+int vmw_overlay_init(struct vmw_private *dev_priv);
+int vmw_overlay_close(struct vmw_private *dev_priv);
+int vmw_overlay_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+int vmw_overlay_stop_all(struct vmw_private *dev_priv);
+int vmw_overlay_resume_all(struct vmw_private *dev_priv);
+int vmw_overlay_pause_all(struct vmw_private *dev_priv);
+int vmw_overlay_claim(struct vmw_private *dev_priv, uint32_t *out);
+int vmw_overlay_unref(struct vmw_private *dev_priv, uint32_t stream_id);
+int vmw_overlay_num_overlays(struct vmw_private *dev_priv);
+int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);
+
+/**
+ * Inline helper functions
+ */
+
+static inline void vmw_surface_unreference(struct vmw_surface **srf)
+{
+ struct vmw_surface *tmp_srf = *srf;
+ struct vmw_resource *res = &tmp_srf->res;
+ *srf = NULL;
+
+ vmw_resource_unreference(&res);
+}
+
+static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
+{
+ (void) vmw_resource_reference(&srf->res);
+ return srf;
+}
+
+static inline void vmw_dmabuf_unreference(struct vmw_dma_buffer **buf)
+{
+ struct vmw_dma_buffer *tmp_buf = *buf;
+ struct ttm_buffer_object *bo = &tmp_buf->base;
+ *buf = NULL;
+
+ ttm_bo_unref(&bo);
+}
+
+static inline struct vmw_dma_buffer *vmw_dmabuf_reference(struct vmw_dma_buffer *buf)
+{
+ if (ttm_bo_reference(&buf->base))
+ return buf;
+ return NULL;
+}
+
+#endif