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c060d198e3
freebsd-skq/sys/dev/drm/r128_drv.h
eadler 44c01df173 Fix undefined behavior: (1 << 31) is not defined as 1 is an int and this 
shifts into the sign bit.  Instead use (1U << 31) which gets the
expected result.

This fix is not ideal as it assumes a 32 bit int, but does fix the issue
for most cases.

A similar change was made in OpenBSD.

Discussed with:	-arch, rdivacky
Reviewed by:	cperciva
2013-11-30 22:17:27 +00:00

530 lines
17 KiB
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/* r128_drv.h -- Private header for r128 driver -*- linux-c -*-
* Created: Mon Dec 13 09:51:11 1999 by faith@precisioninsight.com
*/
/*-
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
* 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, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* PRECISION INSIGHT 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.
*
* Authors:
* Rickard E. (Rik) Faith <faith@valinux.com>
* Kevin E. Martin <martin@valinux.com>
* Gareth Hughes <gareth@valinux.com>
* Michel D<>zer <daenzerm@student.ethz.ch>
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifndef __R128_DRV_H__
#define __R128_DRV_H__
/* General customization:
*/
#define DRIVER_AUTHOR "Gareth Hughes, VA Linux Systems Inc."
#define DRIVER_NAME "r128"
#define DRIVER_DESC "ATI Rage 128"
#define DRIVER_DATE "20030725"
/* Interface history:
*
* ?? - ??
* 2.4 - Add support for ycbcr textures (no new ioctls)
* 2.5 - Add FLIP ioctl, disable FULLSCREEN.
*/
#define DRIVER_MAJOR 2
#define DRIVER_MINOR 5
#define DRIVER_PATCHLEVEL 0
#define GET_RING_HEAD(dev_priv) R128_READ( R128_PM4_BUFFER_DL_RPTR )
typedef struct drm_r128_freelist {
unsigned int age;
struct drm_buf *buf;
struct drm_r128_freelist *next;
struct drm_r128_freelist *prev;
} drm_r128_freelist_t;
typedef struct drm_r128_ring_buffer {
u32 *start;
u32 *end;
int size;
int size_l2qw;
u32 tail;
u32 tail_mask;
int space;
int high_mark;
} drm_r128_ring_buffer_t;
typedef struct drm_r128_private {
drm_r128_ring_buffer_t ring;
drm_r128_sarea_t *sarea_priv;
int cce_mode;
int cce_fifo_size;
int cce_running;
drm_r128_freelist_t *head;
drm_r128_freelist_t *tail;
int usec_timeout;
int is_pci;
unsigned long cce_buffers_offset;
atomic_t idle_count;
int page_flipping;
int current_page;
u32 crtc_offset;
u32 crtc_offset_cntl;
atomic_t vbl_received;
u32 color_fmt;
unsigned int front_offset;
unsigned int front_pitch;
unsigned int back_offset;
unsigned int back_pitch;
u32 depth_fmt;
unsigned int depth_offset;
unsigned int depth_pitch;
unsigned int span_offset;
u32 front_pitch_offset_c;
u32 back_pitch_offset_c;
u32 depth_pitch_offset_c;
u32 span_pitch_offset_c;
drm_local_map_t *sarea;
drm_local_map_t *mmio;
drm_local_map_t *cce_ring;
drm_local_map_t *ring_rptr;
drm_local_map_t *agp_textures;
struct drm_ati_pcigart_info gart_info;
} drm_r128_private_t;
typedef struct drm_r128_buf_priv {
u32 age;
int prim;
int discard;
int dispatched;
drm_r128_freelist_t *list_entry;
} drm_r128_buf_priv_t;
extern struct drm_ioctl_desc r128_ioctls[];
extern int r128_max_ioctl;
/* r128_cce.c */
extern int r128_cce_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int r128_cce_start(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int r128_cce_stop(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int r128_cce_reset(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int r128_cce_idle(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int r128_engine_reset(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int r128_fullscreen(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int r128_cce_buffers(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern void r128_freelist_reset(struct drm_device * dev);
extern int r128_wait_ring(drm_r128_private_t * dev_priv, int n);
extern int r128_do_cce_idle(drm_r128_private_t * dev_priv);
extern int r128_do_cleanup_cce(struct drm_device * dev);
extern int r128_enable_vblank(struct drm_device *dev, int crtc);
extern void r128_disable_vblank(struct drm_device *dev, int crtc);
extern u32 r128_get_vblank_counter(struct drm_device *dev, int crtc);
extern irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS);
extern void r128_driver_irq_preinstall(struct drm_device * dev);
extern int r128_driver_irq_postinstall(struct drm_device * dev);
extern void r128_driver_irq_uninstall(struct drm_device * dev);
extern void r128_driver_lastclose(struct drm_device * dev);
extern int r128_driver_load(struct drm_device * dev, unsigned long flags);
extern void r128_driver_preclose(struct drm_device * dev,
struct drm_file *file_priv);
extern long r128_compat_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg);
/* Register definitions, register access macros and drmAddMap constants
* for Rage 128 kernel driver.
*/
#define R128_AUX_SC_CNTL 0x1660
# define R128_AUX1_SC_EN (1 << 0)
# define R128_AUX1_SC_MODE_OR (0 << 1)
# define R128_AUX1_SC_MODE_NAND (1 << 1)
# define R128_AUX2_SC_EN (1 << 2)
# define R128_AUX2_SC_MODE_OR (0 << 3)
# define R128_AUX2_SC_MODE_NAND (1 << 3)
# define R128_AUX3_SC_EN (1 << 4)
# define R128_AUX3_SC_MODE_OR (0 << 5)
# define R128_AUX3_SC_MODE_NAND (1 << 5)
#define R128_AUX1_SC_LEFT 0x1664
#define R128_AUX1_SC_RIGHT 0x1668
#define R128_AUX1_SC_TOP 0x166c
#define R128_AUX1_SC_BOTTOM 0x1670
#define R128_AUX2_SC_LEFT 0x1674
#define R128_AUX2_SC_RIGHT 0x1678
#define R128_AUX2_SC_TOP 0x167c
#define R128_AUX2_SC_BOTTOM 0x1680
#define R128_AUX3_SC_LEFT 0x1684
#define R128_AUX3_SC_RIGHT 0x1688
#define R128_AUX3_SC_TOP 0x168c
#define R128_AUX3_SC_BOTTOM 0x1690
#define R128_BRUSH_DATA0 0x1480
#define R128_BUS_CNTL 0x0030
# define R128_BUS_MASTER_DIS (1 << 6)
#define R128_CLOCK_CNTL_INDEX 0x0008
#define R128_CLOCK_CNTL_DATA 0x000c
# define R128_PLL_WR_EN (1 << 7)
#define R128_CONSTANT_COLOR_C 0x1d34
#define R128_CRTC_OFFSET 0x0224
#define R128_CRTC_OFFSET_CNTL 0x0228
# define R128_CRTC_OFFSET_FLIP_CNTL (1 << 16)
#define R128_DP_GUI_MASTER_CNTL 0x146c
# define R128_GMC_SRC_PITCH_OFFSET_CNTL (1 << 0)
# define R128_GMC_DST_PITCH_OFFSET_CNTL (1 << 1)
# define R128_GMC_BRUSH_SOLID_COLOR (13 << 4)
# define R128_GMC_BRUSH_NONE (15 << 4)
# define R128_GMC_DST_16BPP (4 << 8)
# define R128_GMC_DST_24BPP (5 << 8)
# define R128_GMC_DST_32BPP (6 << 8)
# define R128_GMC_DST_DATATYPE_SHIFT 8
# define R128_GMC_SRC_DATATYPE_COLOR (3 << 12)
# define R128_DP_SRC_SOURCE_MEMORY (2 << 24)
# define R128_DP_SRC_SOURCE_HOST_DATA (3 << 24)
# define R128_GMC_CLR_CMP_CNTL_DIS (1 << 28)
# define R128_GMC_AUX_CLIP_DIS (1 << 29)
# define R128_GMC_WR_MSK_DIS (1 << 30)
# define R128_ROP3_S 0x00cc0000
# define R128_ROP3_P 0x00f00000
#define R128_DP_WRITE_MASK 0x16cc
#define R128_DST_PITCH_OFFSET_C 0x1c80
# define R128_DST_TILE (1U << 31)
#define R128_GEN_INT_CNTL 0x0040
# define R128_CRTC_VBLANK_INT_EN (1 << 0)
#define R128_GEN_INT_STATUS 0x0044
# define R128_CRTC_VBLANK_INT (1 << 0)
# define R128_CRTC_VBLANK_INT_AK (1 << 0)
#define R128_GEN_RESET_CNTL 0x00f0
# define R128_SOFT_RESET_GUI (1 << 0)
#define R128_GUI_SCRATCH_REG0 0x15e0
#define R128_GUI_SCRATCH_REG1 0x15e4
#define R128_GUI_SCRATCH_REG2 0x15e8
#define R128_GUI_SCRATCH_REG3 0x15ec
#define R128_GUI_SCRATCH_REG4 0x15f0
#define R128_GUI_SCRATCH_REG5 0x15f4
#define R128_GUI_STAT 0x1740
# define R128_GUI_FIFOCNT_MASK 0x0fff
# define R128_GUI_ACTIVE (1U << 31)
#define R128_MCLK_CNTL 0x000f
# define R128_FORCE_GCP (1 << 16)
# define R128_FORCE_PIPE3D_CP (1 << 17)
# define R128_FORCE_RCP (1 << 18)
#define R128_PC_GUI_CTLSTAT 0x1748
#define R128_PC_NGUI_CTLSTAT 0x0184
# define R128_PC_FLUSH_GUI (3 << 0)
# define R128_PC_RI_GUI (1 << 2)
# define R128_PC_FLUSH_ALL 0x00ff
# define R128_PC_BUSY (1U << 31)
#define R128_PCI_GART_PAGE 0x017c
#define R128_PRIM_TEX_CNTL_C 0x1cb0
#define R128_SCALE_3D_CNTL 0x1a00
#define R128_SEC_TEX_CNTL_C 0x1d00
#define R128_SEC_TEXTURE_BORDER_COLOR_C 0x1d3c
#define R128_SETUP_CNTL 0x1bc4
#define R128_STEN_REF_MASK_C 0x1d40
#define R128_TEX_CNTL_C 0x1c9c
# define R128_TEX_CACHE_FLUSH (1 << 23)
#define R128_WAIT_UNTIL 0x1720
# define R128_EVENT_CRTC_OFFSET (1 << 0)
#define R128_WINDOW_XY_OFFSET 0x1bcc
/* CCE registers
*/
#define R128_PM4_BUFFER_OFFSET 0x0700
#define R128_PM4_BUFFER_CNTL 0x0704
# define R128_PM4_MASK (15 << 28)
# define R128_PM4_NONPM4 (0 << 28)
# define R128_PM4_192PIO (1 << 28)
# define R128_PM4_192BM (2 << 28)
# define R128_PM4_128PIO_64INDBM (3 << 28)
# define R128_PM4_128BM_64INDBM (4 << 28)
# define R128_PM4_64PIO_128INDBM (5 << 28)
# define R128_PM4_64BM_128INDBM (6 << 28)
# define R128_PM4_64PIO_64VCBM_64INDBM (7 << 28)
# define R128_PM4_64BM_64VCBM_64INDBM (8 << 28)
# define R128_PM4_64PIO_64VCPIO_64INDPIO (15 << 28)
# define R128_PM4_BUFFER_CNTL_NOUPDATE (1 << 27)
#define R128_PM4_BUFFER_WM_CNTL 0x0708
# define R128_WMA_SHIFT 0
# define R128_WMB_SHIFT 8
# define R128_WMC_SHIFT 16
# define R128_WB_WM_SHIFT 24
#define R128_PM4_BUFFER_DL_RPTR_ADDR 0x070c
#define R128_PM4_BUFFER_DL_RPTR 0x0710
#define R128_PM4_BUFFER_DL_WPTR 0x0714
# define R128_PM4_BUFFER_DL_DONE (1U << 31)
#define R128_PM4_VC_FPU_SETUP 0x071c
#define R128_PM4_IW_INDOFF 0x0738
#define R128_PM4_IW_INDSIZE 0x073c
#define R128_PM4_STAT 0x07b8
# define R128_PM4_FIFOCNT_MASK 0x0fff
# define R128_PM4_BUSY (1 << 16)
# define R128_PM4_GUI_ACTIVE (1U << 31)
#define R128_PM4_MICROCODE_ADDR 0x07d4
#define R128_PM4_MICROCODE_RADDR 0x07d8
#define R128_PM4_MICROCODE_DATAH 0x07dc
#define R128_PM4_MICROCODE_DATAL 0x07e0
#define R128_PM4_BUFFER_ADDR 0x07f0
#define R128_PM4_MICRO_CNTL 0x07fc
# define R128_PM4_MICRO_FREERUN (1 << 30)
#define R128_PM4_FIFO_DATA_EVEN 0x1000
#define R128_PM4_FIFO_DATA_ODD 0x1004
/* CCE command packets
*/
#define R128_CCE_PACKET0 0x00000000
#define R128_CCE_PACKET1 0x40000000
#define R128_CCE_PACKET2 0x80000000
#define R128_CCE_PACKET3 0xC0000000
# define R128_CNTL_HOSTDATA_BLT 0x00009400
# define R128_CNTL_PAINT_MULTI 0x00009A00
# define R128_CNTL_BITBLT_MULTI 0x00009B00
# define R128_3D_RNDR_GEN_INDX_PRIM 0x00002300
#define R128_CCE_PACKET_MASK 0xC0000000
#define R128_CCE_PACKET_COUNT_MASK 0x3fff0000
#define R128_CCE_PACKET0_REG_MASK 0x000007ff
#define R128_CCE_PACKET1_REG0_MASK 0x000007ff
#define R128_CCE_PACKET1_REG1_MASK 0x003ff800
#define R128_CCE_VC_CNTL_PRIM_TYPE_NONE 0x00000000
#define R128_CCE_VC_CNTL_PRIM_TYPE_POINT 0x00000001
#define R128_CCE_VC_CNTL_PRIM_TYPE_LINE 0x00000002
#define R128_CCE_VC_CNTL_PRIM_TYPE_POLY_LINE 0x00000003
#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_LIST 0x00000004
#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_FAN 0x00000005
#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_STRIP 0x00000006
#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2 0x00000007
#define R128_CCE_VC_CNTL_PRIM_WALK_IND 0x00000010
#define R128_CCE_VC_CNTL_PRIM_WALK_LIST 0x00000020
#define R128_CCE_VC_CNTL_PRIM_WALK_RING 0x00000030
#define R128_CCE_VC_CNTL_NUM_SHIFT 16
#define R128_DATATYPE_VQ 0
#define R128_DATATYPE_CI4 1
#define R128_DATATYPE_CI8 2
#define R128_DATATYPE_ARGB1555 3
#define R128_DATATYPE_RGB565 4
#define R128_DATATYPE_RGB888 5
#define R128_DATATYPE_ARGB8888 6
#define R128_DATATYPE_RGB332 7
#define R128_DATATYPE_Y8 8
#define R128_DATATYPE_RGB8 9
#define R128_DATATYPE_CI16 10
#define R128_DATATYPE_YVYU422 11
#define R128_DATATYPE_VYUY422 12
#define R128_DATATYPE_AYUV444 14
#define R128_DATATYPE_ARGB4444 15
/* Constants */
#define R128_AGP_OFFSET 0x02000000
#define R128_WATERMARK_L 16
#define R128_WATERMARK_M 8
#define R128_WATERMARK_N 8
#define R128_WATERMARK_K 128
#define R128_MAX_USEC_TIMEOUT 100000 /* 100 ms */
#define R128_LAST_FRAME_REG R128_GUI_SCRATCH_REG0
#define R128_LAST_DISPATCH_REG R128_GUI_SCRATCH_REG1
#define R128_MAX_VB_AGE 0x7fffffff
#define R128_MAX_VB_VERTS (0xffff)
#define R128_RING_HIGH_MARK 128
#define R128_PERFORMANCE_BOXES 0
#define R128_PCIGART_TABLE_SIZE 32768
#define R128_READ(reg) DRM_READ32( dev_priv->mmio, (reg) )
#define R128_WRITE(reg,val) DRM_WRITE32( dev_priv->mmio, (reg), (val) )
#define R128_READ8(reg) DRM_READ8( dev_priv->mmio, (reg) )
#define R128_WRITE8(reg,val) DRM_WRITE8( dev_priv->mmio, (reg), (val) )
#define R128_WRITE_PLL(addr,val) \
do { \
R128_WRITE8(R128_CLOCK_CNTL_INDEX, \
((addr) & 0x1f) | R128_PLL_WR_EN); \
R128_WRITE(R128_CLOCK_CNTL_DATA, (val)); \
} while (0)
#define CCE_PACKET0( reg, n ) (R128_CCE_PACKET0 | \
((n) << 16) | ((reg) >> 2))
#define CCE_PACKET1( reg0, reg1 ) (R128_CCE_PACKET1 | \
(((reg1) >> 2) << 11) | ((reg0) >> 2))
#define CCE_PACKET2() (R128_CCE_PACKET2)
#define CCE_PACKET3( pkt, n ) (R128_CCE_PACKET3 | \
(pkt) | ((n) << 16))
static __inline__ void r128_update_ring_snapshot(drm_r128_private_t * dev_priv)
{
drm_r128_ring_buffer_t *ring = &dev_priv->ring;
ring->space = (GET_RING_HEAD(dev_priv) - ring->tail) * sizeof(u32);
if (ring->space <= 0)
ring->space += ring->size;
}
/* ================================================================
* Misc helper macros
*/
#define RING_SPACE_TEST_WITH_RETURN( dev_priv ) \
do { \
drm_r128_ring_buffer_t *ring = &dev_priv->ring; int i; \
if ( ring->space < ring->high_mark ) { \
for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) { \
r128_update_ring_snapshot( dev_priv ); \
if ( ring->space >= ring->high_mark ) \
goto __ring_space_done; \
DRM_UDELAY(1); \
} \
DRM_ERROR( "ring space check failed!\n" ); \
return -EBUSY; \
} \
__ring_space_done: \
; \
} while (0)
#define VB_AGE_TEST_WITH_RETURN( dev_priv ) \
do { \
drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv; \
if ( sarea_priv->last_dispatch >= R128_MAX_VB_AGE ) { \
int __ret = r128_do_cce_idle( dev_priv ); \
if ( __ret ) return __ret; \
sarea_priv->last_dispatch = 0; \
r128_freelist_reset( dev ); \
} \
} while (0)
#define R128_WAIT_UNTIL_PAGE_FLIPPED() do { \
OUT_RING( CCE_PACKET0( R128_WAIT_UNTIL, 0 ) ); \
OUT_RING( R128_EVENT_CRTC_OFFSET ); \
} while (0)
/* ================================================================
* Ring control
*/
#define R128_VERBOSE 0
#define RING_LOCALS \
int write, _nr; unsigned int tail_mask; volatile u32 *ring;
#define BEGIN_RING( n ) do { \
if ( R128_VERBOSE ) { \
DRM_INFO( "BEGIN_RING( %d )\n", (n)); \
} \
if ( dev_priv->ring.space <= (n) * sizeof(u32) ) { \
COMMIT_RING(); \
r128_wait_ring( dev_priv, (n) * sizeof(u32) ); \
} \
_nr = n; dev_priv->ring.space -= (n) * sizeof(u32); \
ring = dev_priv->ring.start; \
write = dev_priv->ring.tail; \
tail_mask = dev_priv->ring.tail_mask; \
} while (0)
/* You can set this to zero if you want. If the card locks up, you'll
* need to keep this set. It works around a bug in early revs of the
* Rage 128 chipset, where the CCE would read 32 dwords past the end of
* the ring buffer before wrapping around.
*/
#define R128_BROKEN_CCE 1
#define ADVANCE_RING() do { \
if ( R128_VERBOSE ) { \
DRM_INFO( "ADVANCE_RING() wr=0x%06x tail=0x%06x\n", \
write, dev_priv->ring.tail ); \
} \
if ( R128_BROKEN_CCE && write < 32 ) { \
memcpy( dev_priv->ring.end, \
dev_priv->ring.start, \
write * sizeof(u32) ); \
} \
if (((dev_priv->ring.tail + _nr) & tail_mask) != write) { \
DRM_ERROR( \
"ADVANCE_RING(): mismatch: nr: %x write: %x line: %d\n", \
((dev_priv->ring.tail + _nr) & tail_mask), \
write, __LINE__); \
} else \
dev_priv->ring.tail = write; \
} while (0)
#define COMMIT_RING() do { \
if ( R128_VERBOSE ) { \
DRM_INFO( "COMMIT_RING() tail=0x%06x\n", \
dev_priv->ring.tail ); \
} \
DRM_MEMORYBARRIER(); \
R128_WRITE( R128_PM4_BUFFER_DL_WPTR, dev_priv->ring.tail ); \
R128_READ( R128_PM4_BUFFER_DL_WPTR ); \
} while (0)
#define OUT_RING( x ) do { \
if ( R128_VERBOSE ) { \
DRM_INFO( " OUT_RING( 0x%08x ) at 0x%x\n", \
(unsigned int)(x), write ); \
} \
ring[write++] = cpu_to_le32( x ); \
write &= tail_mask; \
} while (0)
#endif /* __R128_DRV_H__ */
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