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/* i915_drv.h -- Private header for the I915 driver -*- linux-c -*-
*/
/*
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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 TUNGSTEN GRAPHICS 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.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/drm/i915_drv.h 229157 2011-12-31 20:42:34Z mdf $");
#ifndef _I915_DRV_H_
#define _I915_DRV_H_
#include "dev/drm/drm_mm.h"
#include "dev/drm/i915_reg.h"
/* General customization:
*/
#define DRIVER_AUTHOR "Tungsten Graphics, Inc."
#define DRIVER_NAME "i915"
#define DRIVER_DESC "Intel Graphics"
#define DRIVER_DATE "20080730"
enum pipe {
PIPE_A = 0,
PIPE_B,
};
#define I915_NUM_PIPE 2
/* Interface history:
*
* 1.1: Original.
* 1.2: Add Power Management
* 1.3: Add vblank support
* 1.4: Fix cmdbuffer path, add heap destroy
* 1.5: Add vblank pipe configuration
* 1.6: - New ioctl for scheduling buffer swaps on vertical blank
* - Support vertical blank on secondary display pipe
*/
#define DRIVER_MAJOR 1
#define DRIVER_MINOR 6
#define DRIVER_PATCHLEVEL 0
#define WATCH_COHERENCY 0
#define WATCH_BUF 0
#define WATCH_EXEC 0
#define WATCH_LRU 0
#define WATCH_RELOC 0
#define WATCH_INACTIVE 0
#define WATCH_PWRITE 0
typedef struct _drm_i915_ring_buffer {
int tail_mask;
unsigned long Size;
u8 *virtual_start;
int head;
int tail;
int space;
drm_local_map_t map;
struct drm_gem_object *ring_obj;
} drm_i915_ring_buffer_t;
struct mem_block {
struct mem_block *next;
struct mem_block *prev;
int start;
int size;
struct drm_file *file_priv; /* NULL: free, -1: heap, other: real files */
};
struct opregion_header;
struct opregion_acpi;
struct opregion_swsci;
struct opregion_asle;
struct intel_opregion {
struct opregion_header *header;
struct opregion_acpi *acpi;
struct opregion_swsci *swsci;
struct opregion_asle *asle;
int enabled;
};
typedef struct drm_i915_private {
struct drm_device *dev;
drm_local_map_t *sarea;
drm_local_map_t *mmio_map;
drm_i915_sarea_t *sarea_priv;
drm_i915_ring_buffer_t ring;
drm_dma_handle_t *status_page_dmah;
void *hw_status_page;
dma_addr_t dma_status_page;
uint32_t counter;
unsigned int status_gfx_addr;
drm_local_map_t hws_map;
struct drm_gem_object *hws_obj;
unsigned int cpp;
int back_offset;
int front_offset;
int current_page;
int page_flipping;
wait_queue_head_t irq_queue;
/** Protects user_irq_refcount and irq_mask_reg */
DRM_SPINTYPE user_irq_lock;
/** Refcount for i915_user_irq_get() versus i915_user_irq_put(). */
int user_irq_refcount;
/** Cached value of IER to avoid reads in updating the bitfield */
u32 irq_mask_reg;
u32 pipestat[2];
int tex_lru_log_granularity;
int allow_batchbuffer;
struct mem_block *agp_heap;
unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
int vblank_pipe;
struct intel_opregion opregion;
/* Register state */
u8 saveLBB;
u32 saveDSPACNTR;
u32 saveDSPBCNTR;
u32 saveDSPARB;
u32 saveRENDERSTANDBY;
u32 saveHWS;
u32 savePIPEACONF;
u32 savePIPEBCONF;
u32 savePIPEASRC;
u32 savePIPEBSRC;
u32 saveFPA0;
u32 saveFPA1;
u32 saveDPLL_A;
u32 saveDPLL_A_MD;
u32 saveHTOTAL_A;
u32 saveHBLANK_A;
u32 saveHSYNC_A;
u32 saveVTOTAL_A;
u32 saveVBLANK_A;
u32 saveVSYNC_A;
u32 saveBCLRPAT_A;
u32 savePIPEASTAT;
u32 saveDSPASTRIDE;
u32 saveDSPASIZE;
u32 saveDSPAPOS;
u32 saveDSPAADDR;
u32 saveDSPASURF;
u32 saveDSPATILEOFF;
u32 savePFIT_PGM_RATIOS;
u32 saveBLC_PWM_CTL;
u32 saveBLC_PWM_CTL2;
u32 saveFPB0;
u32 saveFPB1;
u32 saveDPLL_B;
u32 saveDPLL_B_MD;
u32 saveHTOTAL_B;
u32 saveHBLANK_B;
u32 saveHSYNC_B;
u32 saveVTOTAL_B;
u32 saveVBLANK_B;
u32 saveVSYNC_B;
u32 saveBCLRPAT_B;
u32 savePIPEBSTAT;
u32 saveDSPBSTRIDE;
u32 saveDSPBSIZE;
u32 saveDSPBPOS;
u32 saveDSPBADDR;
u32 saveDSPBSURF;
u32 saveDSPBTILEOFF;
u32 saveVGA0;
u32 saveVGA1;
u32 saveVGA_PD;
u32 saveVGACNTRL;
u32 saveADPA;
u32 saveLVDS;
u32 savePP_ON_DELAYS;
u32 savePP_OFF_DELAYS;
u32 saveDVOA;
u32 saveDVOB;
u32 saveDVOC;
u32 savePP_ON;
u32 savePP_OFF;
u32 savePP_CONTROL;
u32 savePP_DIVISOR;
u32 savePFIT_CONTROL;
u32 save_palette_a[256];
u32 save_palette_b[256];
u32 saveFBC_CFB_BASE;
u32 saveFBC_LL_BASE;
u32 saveFBC_CONTROL;
u32 saveFBC_CONTROL2;
u32 saveIER;
u32 saveIIR;
u32 saveIMR;
u32 saveCACHE_MODE_0;
u32 saveD_STATE;
u32 saveCG_2D_DIS;
u32 saveMI_ARB_STATE;
u32 saveSWF0[16];
u32 saveSWF1[16];
u32 saveSWF2[3];
u8 saveMSR;
u8 saveSR[8];
u8 saveGR[25];
u8 saveAR_INDEX;
u8 saveAR[21];
u8 saveDACMASK;
u8 saveCR[37];
struct {
struct drm_mm gtt_space;
/**
* List of objects currently involved in rendering from the
* ringbuffer.
*
* A reference is held on the buffer while on this list.
*/
struct list_head active_list;
/**
* List of objects which are not in the ringbuffer but which
* still have a write_domain which needs to be flushed before
* unbinding.
*
* A reference is held on the buffer while on this list.
*/
struct list_head flushing_list;
/**
* LRU list of objects which are not in the ringbuffer and
* are ready to unbind, but are still in the GTT.
*
* A reference is not held on the buffer while on this list,
* as merely being GTT-bound shouldn't prevent its being
* freed, and we'll pull it off the list in the free path.
*/
struct list_head inactive_list;
/**
* List of breadcrumbs associated with GPU requests currently
* outstanding.
*/
struct list_head request_list;
#ifdef __linux__
/**
* We leave the user IRQ off as much as possible,
* but this means that requests will finish and never
* be retired once the system goes idle. Set a timer to
* fire periodically while the ring is running. When it
* fires, go retire requests.
*/
struct delayed_work retire_work;
#endif
uint32_t next_gem_seqno;
/**
* Waiting sequence number, if any
*/
uint32_t waiting_gem_seqno;
/**
* Last seq seen at irq time
*/
uint32_t irq_gem_seqno;
/**
* Flag if the X Server, and thus DRM, is not currently in
* control of the device.
*
* This is set between LeaveVT and EnterVT. It needs to be
* replaced with a semaphore. It also needs to be
* transitioned away from for kernel modesetting.
*/
int suspended;
/**
* Flag if the hardware appears to be wedged.
*
* This is set when attempts to idle the device timeout.
* It prevents command submission from occuring and makes
* every pending request fail
*/
int wedged;
/** Bit 6 swizzling required for X tiling */
uint32_t bit_6_swizzle_x;
/** Bit 6 swizzling required for Y tiling */
uint32_t bit_6_swizzle_y;
} mm;
} drm_i915_private_t;
enum intel_chip_family {
CHIP_I8XX = 0x01,
CHIP_I9XX = 0x02,
CHIP_I915 = 0x04,
CHIP_I965 = 0x08,
};
/** driver private structure attached to each drm_gem_object */
struct drm_i915_gem_object {
struct drm_gem_object *obj;
/** Current space allocated to this object in the GTT, if any. */
struct drm_mm_node *gtt_space;
/** This object's place on the active/flushing/inactive lists */
struct list_head list;
/**
* This is set if the object is on the active or flushing lists
* (has pending rendering), and is not set if it's on inactive (ready
* to be unbound).
*/
int active;
/**
* This is set if the object has been written to since last bound
* to the GTT
*/
int dirty;
/** AGP memory structure for our GTT binding. */
DRM_AGP_MEM *agp_mem;
struct page **page_list;
/**
* Current offset of the object in GTT space.
*
* This is the same as gtt_space->start
*/
uint32_t gtt_offset;
/** Boolean whether this object has a valid gtt offset. */
int gtt_bound;
/** How many users have pinned this object in GTT space */
int pin_count;
/** Breadcrumb of last rendering to the buffer. */
uint32_t last_rendering_seqno;
/** Current tiling mode for the object. */
uint32_t tiling_mode;
/** AGP mapping type (AGP_USER_MEMORY or AGP_USER_CACHED_MEMORY */
uint32_t agp_type;
/**
* Flagging of which individual pages are valid in GEM_DOMAIN_CPU when
* GEM_DOMAIN_CPU is not in the object's read domain.
*/
uint8_t *page_cpu_valid;
};
/**
* Request queue structure.
*
* The request queue allows us to note sequence numbers that have been emitted
* and may be associated with active buffers to be retired.
*
* By keeping this list, we can avoid having to do questionable
* sequence-number comparisons on buffer last_rendering_seqnos, and associate
* an emission time with seqnos for tracking how far ahead of the GPU we are.
*/
struct drm_i915_gem_request {
/** GEM sequence number associated with this request. */
uint32_t seqno;
/** Time at which this request was emitted, in jiffies. */
unsigned long emitted_jiffies;
/** Cache domains that were flushed at the start of the request. */
uint32_t flush_domains;
struct list_head list;
};
struct drm_i915_file_private {
struct {
uint32_t last_gem_seqno;
uint32_t last_gem_throttle_seqno;
} mm;
};
extern struct drm_ioctl_desc i915_ioctls[];
extern int i915_max_ioctl;
/* i915_dma.c */
extern void i915_kernel_lost_context(struct drm_device * dev);
extern int i915_driver_load(struct drm_device *, unsigned long flags);
extern int i915_driver_unload(struct drm_device *);
extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
extern void i915_driver_lastclose(struct drm_device * dev);
extern void i915_driver_preclose(struct drm_device *dev,
struct drm_file *file_priv);
extern void i915_driver_postclose(struct drm_device *dev,
struct drm_file *file_priv);
extern int i915_driver_device_is_agp(struct drm_device * dev);
extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg);
extern int i915_emit_box(struct drm_device *dev,
struct drm_clip_rect __user *boxes,
int i, int DR1, int DR4);
/* i915_irq.c */
extern int i915_irq_emit(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int i915_irq_wait(struct drm_device *dev, void *data,
struct drm_file *file_priv);
void i915_user_irq_get(struct drm_device *dev);
void i915_user_irq_put(struct drm_device *dev);
extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS);
extern void i915_driver_irq_preinstall(struct drm_device * dev);
extern int i915_driver_irq_postinstall(struct drm_device *dev);
extern void i915_driver_irq_uninstall(struct drm_device * dev);
extern int i915_vblank_pipe_set(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int i915_vblank_pipe_get(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int i915_enable_vblank(struct drm_device *dev, int crtc);
extern void i915_disable_vblank(struct drm_device *dev, int crtc);
extern u32 i915_get_vblank_counter(struct drm_device *dev, int crtc);
extern u32 g45_get_vblank_counter(struct drm_device *dev, int crtc);
extern int i915_vblank_swap(struct drm_device *dev, void *data,
struct drm_file *file_priv);
void
i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
void
i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
/* i915_mem.c */
extern int i915_mem_alloc(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int i915_mem_free(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int i915_mem_init_heap(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int i915_mem_destroy_heap(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern void i915_mem_takedown(struct mem_block **heap);
extern void i915_mem_release(struct drm_device * dev,
struct drm_file *file_priv, struct mem_block *heap);
#ifdef I915_HAVE_GEM
/* i915_gem.c */
int i915_gem_init_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_create_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_execbuffer(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_set_tiling(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_get_tiling(struct drm_device *dev, void *data,
struct drm_file *file_priv);
void i915_gem_load(struct drm_device *dev);
int i915_gem_proc_init(struct drm_minor *minor);
void i915_gem_proc_cleanup(struct drm_minor *minor);
int i915_gem_init_object(struct drm_gem_object *obj);
void i915_gem_free_object(struct drm_gem_object *obj);
int i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment);
void i915_gem_object_unpin(struct drm_gem_object *obj);
void i915_gem_lastclose(struct drm_device *dev);
uint32_t i915_get_gem_seqno(struct drm_device *dev);
void i915_gem_retire_requests(struct drm_device *dev);
void i915_gem_retire_work_handler(struct work_struct *work);
void i915_gem_clflush_object(struct drm_gem_object *obj);
/* i915_gem_tiling.c */
void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
/* i915_gem_debug.c */
void i915_gem_dump_object(struct drm_gem_object *obj, int len,
const char *where, uint32_t mark);
#if WATCH_INACTIVE
void i915_verify_inactive(struct drm_device *dev, char *file, int line);
#else
#define i915_verify_inactive(dev, file, line)
#endif
void i915_gem_object_check_coherency(struct drm_gem_object *obj, int handle);
void i915_gem_dump_object(struct drm_gem_object *obj, int len,
const char *where, uint32_t mark);
void i915_dump_lru(struct drm_device *dev, const char *where);
#endif /* I915_HAVE_GEM */
/* i915_suspend.c */
extern int i915_save_state(struct drm_device *dev);
extern int i915_restore_state(struct drm_device *dev);
/* i915_opregion.c */
extern int intel_opregion_init(struct drm_device *dev);
extern void intel_opregion_free(struct drm_device *dev);
extern void opregion_asle_intr(struct drm_device *dev);
extern void opregion_enable_asle(struct drm_device *dev);
/**
* Lock test for when it's just for synchronization of ring access.
*
* In that case, we don't need to do it when GEM is initialized as nobody else
* has access to the ring.
*/
#define RING_LOCK_TEST_WITH_RETURN(dev, file_priv) do { \
if (((drm_i915_private_t *)dev->dev_private)->ring.ring_obj == NULL) \
LOCK_TEST_WITH_RETURN(dev, file_priv); \
} while (0)
#if defined(__FreeBSD__) && !defined(__bool_true_false_are_defined)
typedef boolean_t bool;
#endif
#define I915_READ(reg) DRM_READ32(dev_priv->mmio_map, (reg))
#define I915_WRITE(reg,val) DRM_WRITE32(dev_priv->mmio_map, (reg), (val))
#define I915_READ16(reg) DRM_READ16(dev_priv->mmio_map, (reg))
#define I915_WRITE16(reg,val) DRM_WRITE16(dev_priv->mmio_map, (reg), (val))
#define I915_READ8(reg) DRM_READ8(dev_priv->mmio_map, (reg))
#define I915_WRITE8(reg,val) DRM_WRITE8(dev_priv->mmio_map, (reg), (val))
#define I915_VERBOSE 0
#define RING_LOCALS unsigned int outring, ringmask, outcount; \
volatile char *virt;
#define BEGIN_LP_RING(n) do { \
if (I915_VERBOSE) \
DRM_DEBUG("BEGIN_LP_RING(%d)\n", (n)); \
if (dev_priv->ring.space < (n)*4) \
i915_wait_ring(dev, (n)*4, __func__); \
outcount = 0; \
outring = dev_priv->ring.tail; \
ringmask = dev_priv->ring.tail_mask; \
virt = dev_priv->ring.virtual_start; \
} while (0)
#define OUT_RING(n) do { \
if (I915_VERBOSE) DRM_DEBUG(" OUT_RING %x\n", (int)(n)); \
*(volatile unsigned int *)(virt + outring) = (n); \
outcount++; \
outring += 4; \
outring &= ringmask; \
} while (0)
#define ADVANCE_LP_RING() do { \
if (I915_VERBOSE) DRM_DEBUG("ADVANCE_LP_RING %x\n", outring); \
dev_priv->ring.tail = outring; \
dev_priv->ring.space -= outcount * 4; \
I915_WRITE(PRB0_TAIL, outring); \
} while(0)
/**
* Reads a dword out of the status page, which is written to from the command
* queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or
* MI_STORE_DATA_IMM.
*
* The following dwords have a reserved meaning:
* 0x00: ISR copy, updated when an ISR bit not set in the HWSTAM changes.
* 0x04: ring 0 head pointer
* 0x05: ring 1 head pointer (915-class)
* 0x06: ring 2 head pointer (915-class)
* 0x10-0x1b: Context status DWords (GM45)
* 0x1f: Last written status offset. (GM45)
*
* The area from dword 0x20 to 0x3ff is available for driver usage.
*/
#define READ_HWSP(dev_priv, reg) (((volatile u32*)(dev_priv->hw_status_page))[reg])
#define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, I915_BREADCRUMB_INDEX)
#define I915_GEM_HWS_INDEX 0x20
#define I915_BREADCRUMB_INDEX 0x21
extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
#define IS_I830(dev) ((dev)->pci_device == 0x3577)
#define IS_845G(dev) ((dev)->pci_device == 0x2562)
#define IS_I85X(dev) ((dev)->pci_device == 0x3582)
#define IS_I855(dev) ((dev)->pci_device == 0x3582)
#define IS_I865G(dev) ((dev)->pci_device == 0x2572)
#define IS_I915G(dev) ((dev)->pci_device == 0x2582 || (dev)->pci_device == 0x258a)
#define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
#define IS_I945G(dev) ((dev)->pci_device == 0x2772)
#define IS_I945GM(dev) ((dev)->pci_device == 0x27A2 ||\
(dev)->pci_device == 0x27AE)
#define IS_I965G(dev) ((dev)->pci_device == 0x2972 || \
(dev)->pci_device == 0x2982 || \
(dev)->pci_device == 0x2992 || \
(dev)->pci_device == 0x29A2 || \
(dev)->pci_device == 0x2A02 || \
(dev)->pci_device == 0x2A12 || \
(dev)->pci_device == 0x2A42 || \
(dev)->pci_device == 0x2E02 || \
(dev)->pci_device == 0x2E12 || \
(dev)->pci_device == 0x2E22 || \
(dev)->pci_device == 0x2E32)
#define IS_I965GM(dev) ((dev)->pci_device == 0x2A02)
#define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
#define IS_G4X(dev) ((dev)->pci_device == 0x2E02 || \
(dev)->pci_device == 0x2E12 || \
(dev)->pci_device == 0x2E22 || \
(dev)->pci_device == 0x2E32 || \
IS_GM45(dev))
#define IS_IGDG(dev) ((dev)->pci_device == 0xa001)
#define IS_IGDGM(dev) ((dev)->pci_device == 0xa011)
#define IS_IGD(dev) (IS_IGDG(dev) || IS_IGDGM(dev))
#define IS_G33(dev) ((dev)->pci_device == 0x29C2 || \
(dev)->pci_device == 0x29B2 || \
(dev)->pci_device == 0x29D2 || \
IS_IGD(dev))
#define IS_I9XX(dev) (IS_I915G(dev) || IS_I915GM(dev) || IS_I945G(dev) || \
IS_I945GM(dev) || IS_I965G(dev) || IS_G33(dev))
#define IS_MOBILE(dev) (IS_I830(dev) || IS_I85X(dev) || IS_I915GM(dev) || \
IS_I945GM(dev) || IS_I965GM(dev) || IS_GM45(dev) || \
IS_IGD(dev))
#define I915_NEED_GFX_HWS(dev) (IS_G33(dev) || IS_GM45(dev) || IS_G4X(dev))
#define PRIMARY_RINGBUFFER_SIZE (128*1024)
#endif