1 /* i915_drv.h -- Private header for the I915 driver -*- linux-c -*-
5 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sub license, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
16 * The above copyright notice and this permission notice (including the
17 * next paragraph) shall be included in all copies or substantial portions
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
23 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
24 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
35 /* General customization:
38 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
40 #define DRIVER_NAME "i915"
41 #define DRIVER_DESC "Intel Graphics"
42 #define DRIVER_DATE "20060119"
52 * 1.2: Add Power Management
53 * 1.3: Add vblank support
54 * 1.4: Fix cmdbuffer path, add heap destroy
55 * 1.5: Add vblank pipe configuration
56 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
57 * - Support vertical blank on secondary display pipe
59 #define DRIVER_MAJOR 1
60 #define DRIVER_MINOR 6
61 #define DRIVER_PATCHLEVEL 0
63 typedef struct _drm_i915_ring_buffer {
73 } drm_i915_ring_buffer_t;
76 struct mem_block *next;
77 struct mem_block *prev;
80 struct drm_file *file_priv; /* NULL: free, -1: heap, other: real files */
83 typedef struct _drm_i915_vbl_swap {
84 struct list_head head;
85 drm_drawable_t drw_id;
87 unsigned int sequence;
88 } drm_i915_vbl_swap_t;
90 struct opregion_header;
92 struct opregion_swsci;
95 struct intel_opregion {
96 struct opregion_header *header;
97 struct opregion_acpi *acpi;
98 struct opregion_swsci *swsci;
99 struct opregion_asle *asle;
103 typedef struct drm_i915_private {
104 drm_local_map_t *sarea;
105 drm_local_map_t *mmio_map;
107 drm_i915_sarea_t *sarea_priv;
108 drm_i915_ring_buffer_t ring;
110 drm_dma_handle_t *status_page_dmah;
111 void *hw_status_page;
112 dma_addr_t dma_status_page;
114 unsigned int status_gfx_addr;
115 drm_local_map_t hws_map;
123 wait_queue_head_t irq_queue;
124 atomic_t irq_received;
125 atomic_t irq_emitted;
126 /** Protects user_irq_refcount and irq_mask_reg */
127 spinlock_t user_irq_lock;
128 /** Refcount for i915_user_irq_get() versus i915_user_irq_put(). */
129 int user_irq_refcount;
130 /** Cached value of IMR to avoid reads in updating the bitfield */
133 int tex_lru_log_granularity;
134 int allow_batchbuffer;
135 struct mem_block *agp_heap;
136 unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
139 spinlock_t swaps_lock;
140 drm_i915_vbl_swap_t vbl_swaps;
141 unsigned int swaps_pending;
143 struct intel_opregion opregion;
172 u32 savePFIT_PGM_RATIOS;
174 u32 saveBLC_PWM_CTL2;
199 u32 savePP_ON_DELAYS;
200 u32 savePP_OFF_DELAYS;
208 u32 savePFIT_CONTROL;
209 u32 save_palette_a[256];
210 u32 save_palette_b[256];
211 u32 saveFBC_CFB_BASE;
214 u32 saveFBC_CONTROL2;
218 u32 saveCACHE_MODE_0;
221 u32 saveMI_ARB_STATE;
231 u8 saveDACDATA[256*3]; /* 256 3-byte colors */
233 } drm_i915_private_t;
235 extern struct drm_ioctl_desc i915_ioctls[];
236 extern int i915_max_ioctl;
239 extern void i915_kernel_lost_context(struct drm_device * dev);
240 extern int i915_driver_load(struct drm_device *, unsigned long flags);
241 extern int i915_driver_unload(struct drm_device *);
242 extern void i915_driver_lastclose(struct drm_device * dev);
243 extern void i915_driver_preclose(struct drm_device *dev,
244 struct drm_file *file_priv);
245 extern int i915_driver_device_is_agp(struct drm_device * dev);
246 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
250 extern int i915_irq_emit(struct drm_device *dev, void *data,
251 struct drm_file *file_priv);
252 extern int i915_irq_wait(struct drm_device *dev, void *data,
253 struct drm_file *file_priv);
255 extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS);
256 extern void i915_driver_irq_preinstall(struct drm_device * dev);
257 extern int i915_driver_irq_postinstall(struct drm_device *dev);
258 extern void i915_driver_irq_uninstall(struct drm_device * dev);
259 extern int i915_vblank_pipe_set(struct drm_device *dev, void *data,
260 struct drm_file *file_priv);
261 extern int i915_vblank_pipe_get(struct drm_device *dev, void *data,
262 struct drm_file *file_priv);
263 extern int i915_enable_vblank(struct drm_device *dev, int crtc);
264 extern void i915_disable_vblank(struct drm_device *dev, int crtc);
265 extern u32 i915_get_vblank_counter(struct drm_device *dev, int crtc);
266 extern int i915_vblank_swap(struct drm_device *dev, void *data,
267 struct drm_file *file_priv);
268 extern void i915_enable_irq(drm_i915_private_t *dev_priv, u32 mask);
271 extern int i915_mem_alloc(struct drm_device *dev, void *data,
272 struct drm_file *file_priv);
273 extern int i915_mem_free(struct drm_device *dev, void *data,
274 struct drm_file *file_priv);
275 extern int i915_mem_init_heap(struct drm_device *dev, void *data,
276 struct drm_file *file_priv);
277 extern int i915_mem_destroy_heap(struct drm_device *dev, void *data,
278 struct drm_file *file_priv);
279 extern void i915_mem_takedown(struct mem_block **heap);
280 extern void i915_mem_release(struct drm_device * dev,
281 struct drm_file *file_priv, struct mem_block *heap);
284 extern int i915_save_state(struct drm_device *dev);
285 extern int i915_restore_state(struct drm_device *dev);
288 extern int i915_save_state(struct drm_device *dev);
289 extern int i915_restore_state(struct drm_device *dev);
291 /* i915_opregion.c */
292 extern int intel_opregion_init(struct drm_device *dev);
293 extern void intel_opregion_free(struct drm_device *dev);
294 extern void opregion_asle_intr(struct drm_device *dev);
295 extern void opregion_enable_asle(struct drm_device *dev);
297 #define I915_READ(reg) DRM_READ32(dev_priv->mmio_map, (reg))
298 #define I915_WRITE(reg,val) DRM_WRITE32(dev_priv->mmio_map, (reg), (val))
299 #define I915_READ16(reg) DRM_READ16(dev_priv->mmio_map, (reg))
300 #define I915_WRITE16(reg,val) DRM_WRITE16(dev_priv->mmio_map, (reg), (val))
301 #define I915_READ8(reg) DRM_READ8(dev_priv->mmio_map, (reg))
302 #define I915_WRITE8(reg,val) DRM_WRITE8(dev_priv->mmio_map, (reg), (val))
304 #define I915_VERBOSE 0
306 #define RING_LOCALS unsigned int outring, ringmask, outcount; \
309 #define BEGIN_LP_RING(n) do { \
311 DRM_DEBUG("BEGIN_LP_RING(%d)\n", (n)); \
312 if (dev_priv->ring.space < (n)*4) \
313 i915_wait_ring(dev, (n)*4, __func__); \
315 outring = dev_priv->ring.tail; \
316 ringmask = dev_priv->ring.tail_mask; \
317 virt = dev_priv->ring.virtual_start; \
320 #define OUT_RING(n) do { \
321 if (I915_VERBOSE) DRM_DEBUG(" OUT_RING %x\n", (int)(n)); \
322 *(volatile unsigned int *)(virt + outring) = (n); \
325 outring &= ringmask; \
328 #define ADVANCE_LP_RING() do { \
329 if (I915_VERBOSE) DRM_DEBUG("ADVANCE_LP_RING %x\n", outring); \
330 dev_priv->ring.tail = outring; \
331 dev_priv->ring.space -= outcount * 4; \
332 I915_WRITE(PRB0_TAIL, outring); \
336 * Reads a dword out of the status page, which is written to from the command
337 * queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or
340 * The following dwords have a reserved meaning:
341 * 0: ISR copy, updated when an ISR bit not set in the HWSTAM changes.
342 * 4: ring 0 head pointer
343 * 5: ring 1 head pointer (915-class)
344 * 6: ring 2 head pointer (915-class)
346 * The area from dword 0x10 to 0x3ff is available for driver usage.
348 #define READ_HWSP(dev_priv, reg) (((volatile u32*)(dev_priv->hw_status_page))[reg])
349 #define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, 5)
351 extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
353 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
354 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
355 #define IS_I85X(dev) ((dev)->pci_device == 0x3582)
356 #define IS_I855(dev) ((dev)->pci_device == 0x3582)
357 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
359 #define IS_I915G(dev) ((dev)->pci_device == 0x2582 || (dev)->pci_device == 0x258a)
360 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
361 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
362 #define IS_I945GM(dev) ((dev)->pci_device == 0x27A2 ||\
363 (dev)->pci_device == 0x27AE)
364 #define IS_I965G(dev) ((dev)->pci_device == 0x2972 || \
365 (dev)->pci_device == 0x2982 || \
366 (dev)->pci_device == 0x2992 || \
367 (dev)->pci_device == 0x29A2 || \
368 (dev)->pci_device == 0x2A02 || \
369 (dev)->pci_device == 0x2A12 || \
370 (dev)->pci_device == 0x2A42 || \
371 (dev)->pci_device == 0x2E02 || \
372 (dev)->pci_device == 0x2E12 || \
373 (dev)->pci_device == 0x2E22)
375 #define IS_I965GM(dev) ((dev)->pci_device == 0x2A02)
377 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
379 #define IS_G4X(dev) ((dev)->pci_device == 0x2E02 || \
380 (dev)->pci_device == 0x2E12 || \
381 (dev)->pci_device == 0x2E22)
383 #define IS_G33(dev) ((dev)->pci_device == 0x29C2 || \
384 (dev)->pci_device == 0x29B2 || \
385 (dev)->pci_device == 0x29D2)
387 #define IS_I9XX(dev) (IS_I915G(dev) || IS_I915GM(dev) || IS_I945G(dev) || \
388 IS_I945GM(dev) || IS_I965G(dev) || IS_G33(dev))
390 #define IS_MOBILE(dev) (IS_I830(dev) || IS_I85X(dev) || IS_I915GM(dev) || \
391 IS_I945GM(dev) || IS_I965GM(dev) || IS_GM45(dev))
393 #define I915_NEED_GFX_HWS(dev) (IS_G33(dev) || IS_GM45(dev) || IS_G4X(dev))
395 #define PRIMARY_RINGBUFFER_SIZE (128*1024)