/* radeon_cp.c -- CP support for Radeon -*- linux-c -*- */
/*
* Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
* Copyright 2000 VA Linux Systems, Inc., Fremont, California.
* Copyright 2007 Advanced Micro Devices, Inc.
* 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:
* Kevin E. Martin <martin@valinux.com>
* Gareth Hughes <gareth@valinux.com>
*/
#include "drmP.h"
#include "drm.h"
#include "radeon_drm.h"
#include "radeon_drv.h"
#include "r300_reg.h"
#include "radeon_microcode.h"
#define RADEON_FIFO_DEBUG 0
static int radeon_do_cleanup_cp(struct drm_device * dev);
static void radeon_do_cp_start(drm_radeon_private_t * dev_priv);
static u32 R500_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
{
u32 ret;
RADEON_WRITE(R520_MC_IND_INDEX, 0x7f0000 | (addr & 0xff));
ret = RADEON_READ(R520_MC_IND_DATA);
RADEON_WRITE(R520_MC_IND_INDEX, 0);
return ret;
}
static u32 RS480_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
{
u32 ret;
RADEON_WRITE(RS480_NB_MC_INDEX, addr & 0xff);
ret = RADEON_READ(RS480_NB_MC_DATA);
RADEON_WRITE(RS480_NB_MC_INDEX, 0xff);
return ret;
}
static u32 RS690_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
{
u32 ret;
RADEON_WRITE(RS690_MC_INDEX, (addr & RS690_MC_INDEX_MASK));
ret = RADEON_READ(RS690_MC_DATA);
RADEON_WRITE(RS690_MC_INDEX, RS690_MC_INDEX_MASK);
return ret;
}
static u32 IGP_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
{
if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690)
return RS690_READ_MCIND(dev_priv, addr);
else
return RS480_READ_MCIND(dev_priv, addr);
}
u32 radeon_read_fb_location(drm_radeon_private_t *dev_priv)
{
if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
return R500_READ_MCIND(dev_priv, RV515_MC_FB_LOCATION);
else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690)
return RS690_READ_MCIND(dev_priv, RS690_MC_FB_LOCATION);
else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
return R500_READ_MCIND(dev_priv, R520_MC_FB_LOCATION);
else
return RADEON_READ(RADEON_MC_FB_LOCATION);
}
static void radeon_write_fb_location(drm_radeon_private_t *dev_priv, u32 fb_loc)
{
if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
R500_WRITE_MCIND(RV515_MC_FB_LOCATION, fb_loc);
else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690)
RS690_WRITE_MCIND(RS690_MC_FB_LOCATION, fb_loc);
else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
R500_WRITE_MCIND(R520_MC_FB_LOCATION, fb_loc);
else
RADEON_WRITE(RADEON_MC_FB_LOCATION, fb_loc);
}
static void radeon_write_agp_location(drm_radeon_private_t *dev_priv, u32 agp_loc)
{
if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
R500_WRITE_MCIND(RV515_MC_AGP_LOCATION, agp_loc);
else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690)
RS690_WRITE_MCIND(RS690_MC_AGP_LOCATION, agp_loc);
else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
R500_WRITE_MCIND(R520_MC_AGP_LOCATION, agp_loc);
else
RADEON_WRITE(RADEON_MC_AGP_LOCATION, agp_loc);
}
static void radeon_write_agp_base(drm_radeon_private_t *dev_priv, u64 agp_base)
{
u32 agp_base_hi = upper_32_bits(agp_base);
u32 agp_base_lo = agp_base & 0xffffffff;
if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515) {
R500_WRITE_MCIND(RV515_MC_AGP_BASE, agp_base_lo);
R500_WRITE_MCIND(RV515_MC_AGP_BASE_2, agp_base_hi);
} else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) {
RS690_WRITE_MCIND(RS690_MC_AGP_BASE, agp_base_lo);
RS690_WRITE_MCIND(RS690_MC_AGP_BASE_2, agp_base_hi);
} else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515) {
R500_WRITE_MCIND(R520_MC_AGP_BASE, agp_base_lo);
R500_WRITE_MCIND(R520_MC_AGP_BASE_2, agp_base_hi);
} else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS480) {
RADEON_WRITE(RADEON_AGP_BASE, agp_base_lo);
RADEON_WRITE(RS480_AGP_BASE_2, 0);
} else {
RADEON_WRITE(RADEON_AGP_BASE, agp_base_lo);
if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R200)
RADEON_WRITE(RADEON_AGP_BASE_2, agp_base_hi);
}
}
static int RADEON_READ_PLL(struct drm_device * dev, int addr)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
RADEON_WRITE8(RADEON_CLOCK_CNTL_INDEX, addr & 0x1f);
return RADEON_READ(RADEON_CLOCK_CNTL_DATA);
}
static u32 RADEON_READ_PCIE(drm_radeon_private_t *dev_priv, int addr)
{
RADEON_WRITE8(RADEON_PCIE_INDEX, addr & 0xff);
return RADEON_READ(RADEON_PCIE_DATA);
}
#if RADEON_FIFO_DEBUG
static void radeon_status(drm_radeon_private_t * dev_priv)
{
printk("%s:\n", __func__);
printk("RBBM_STATUS = 0x%08x\n",
(unsigned int)RADEON_READ(RADEON_RBBM_STATUS));
printk("CP_RB_RTPR = 0x%08x\n",
(unsigned int)RADEON_READ(RADEON_CP_RB_RPTR));
printk("CP_RB_WTPR = 0x%08x\n",
(unsigned int)RADEON_READ(RADEON_CP_RB_WPTR));
printk("AIC_CNTL = 0x%08x\n",
(unsigned int)RADEON_READ(RADEON_AIC_CNTL));
printk("AIC_STAT = 0x%08x\n",
(unsigned int)RADEON_READ(RADEON_AIC_STAT));
printk("AIC_PT_BASE = 0x%08x\n",
(unsigned int)RADEON_READ(RADEON_AIC_PT_BASE));
printk("TLB_ADDR = 0x%08x\n",
(unsigned int)RADEON_READ(RADEON_AIC_TLB_ADDR));
printk("TLB_DATA = 0x%08x\n",
(unsigned int)RADEON_READ(RADEON_AIC_TLB_DATA));
}
#endif
/* ================================================================
* Engine, FIFO control
*/
static int radeon_do_pixcache_flush(drm_radeon_private_t * dev_priv)
{
u32 tmp;
int i;
dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV280) {
tmp = RADEON_READ(RADEON_RB3D_DSTCACHE_CTLSTAT);
tmp |= RADEON_RB3D_DC_FLUSH_ALL;
RADEON_WRITE(RADEON_RB3D_DSTCACHE_CTLSTAT, tmp);
for (i = 0; i < dev_priv->usec_timeout; i++) {
if (!(RADEON_READ(RADEON_RB3D_DSTCACHE_CTLSTAT)
& RADEON_RB3D_DC_BUSY)) {
return 0;
}
DRM_UDELAY(1);
}
} else {
/* don't flush or purge cache here or lockup */
return 0;
}
#if RADEON_FIFO_DEBUG
DRM_ERROR("failed!\n");
radeon_status(dev_priv);
#endif
return -EBUSY;
}
static int radeon_do_wait_for_fifo(drm_radeon_private_t * dev_priv, int entries)
{
int i;
dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
for (i = 0; i < dev_priv->usec_timeout; i++) {
int slots = (RADEON_READ(RADEON_RBBM_STATUS)
& RADEON_RBBM_FIFOCNT_MASK);
if (slots >= entries)
return 0;
DRM_UDELAY(1);
}
DRM_DEBUG("wait for fifo failed status : 0x%08X 0x%08X\n",
RADEON_READ(RADEON_RBBM_STATUS),
RADEON_READ(R300_VAP_CNTL_STATUS));
#if RADEON_FIFO_DEBUG
DRM_ERROR("failed!\n");
radeon_status(dev_priv);
#endif
return -EBUSY;
}
static int radeon_do_wait_for_idle(drm_radeon_private_t * dev_priv)
{
int i, ret;
dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
ret = radeon_do_wait_for_fifo(dev_priv, 64);
if (ret)
return ret;
for (i = 0; i < dev_priv->usec_timeout; i++) {
if (!(RADEON_READ(RADEON_RBBM_STATUS)
& RADEON_RBBM_ACTIVE)) {
radeon_do_pixcache_flush(dev_priv);
return 0;
}
DRM_UDELAY(1);
}
DRM_DEBUG("wait idle failed status : 0x%08X 0x%08X\n",
RADEON_READ(RADEON_RBBM_STATUS),
RADEON_READ(R300_VAP_CNTL_STATUS));
#if RADEON_FIFO_DEBUG
DRM_ERROR("failed!\n");
radeon_status(dev_priv);
#endif
return -EBUSY;
}
static void radeon_init_pipes(drm_radeon_private_t *dev_priv)
{
uint32_t gb_tile_config, gb_pipe_sel = 0;
/* RS4xx/RS6xx/R4xx/R5xx */
if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R420) {
gb_pipe_sel = RADEON_READ(R400_GB_PIPE_SELECT);
dev_priv->num_gb_pipes = ((gb_pipe_sel >> 12) & 0x3) + 1;
} else {
/* R3xx */
if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R300) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R350)) {
dev_priv->num_gb_pipes = 2;
} else {
/* R3Vxx */
dev_priv->num_gb_pipes = 1;
}
}
DRM_INFO("Num pipes: %d\n", dev_priv->num_gb_pipes);
gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16 /*| R300_SUBPIXEL_1_16*/);
switch (dev_priv->num_gb_pipes) {
case 2: gb_tile_config |= R300_PIPE_COUNT_R300; break;
case 3: gb_tile_config |= R300_PIPE_COUNT_R420_3P; break;
case 4: gb_tile_config |= R300_PIPE_COUNT_R420; break;
default:
case 1: gb_tile_config |= R300_PIPE_COUNT_RV350; break;
}
if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV515) {
RADEON_WRITE_PLL(R500_DYN_SCLK_PWMEM_PIPE, (1 | ((gb_pipe_sel >> 8) & 0xf) << 4));
RADEON_WRITE(R500_SU_REG_DEST, ((1 << dev_priv->num_gb_pipes) - 1));
}
RADEON_WRITE(R300_GB_TILE_CONFIG, gb_tile_config);
radeon_do_wait_for_idle(dev_priv);
RADEON_WRITE(R300_DST_PIPE_CONFIG, RADEON_READ(R300_DST_PIPE_CONFIG) | R300_PIPE_AUTO_CONFIG);
RADEON_WRITE(R300_RB2D_DSTCACHE_MODE, (RADEON_READ(R300_RB2D_DSTCACHE_MODE) |
R300_DC_AUTOFLUSH_ENABLE |
R300_DC_DC_DISABLE_IGNORE_PE));
}
/* ================================================================
* CP control, initialization
*/
/* Load the microcode for the CP */
static void radeon_cp_load_microcode(drm_radeon_private_t * dev_priv)
{
int i;
DRM_DEBUG("\n");
radeon_do_wait_for_idle(dev_priv);
RADEON_WRITE(RADEON_CP_ME_RAM_ADDR, 0);
if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R100) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV100) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV200) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS100) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS200)) {
DRM_INFO("Loading R100 Microcode\n");
for (i = 0; i < 256; i++) {
RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
R100_cp_microcode[i][1]);
RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
R100_cp_microcode[i][0]);
}
} else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R200) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV250) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV280) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS300)) {
DRM_INFO("Loading R200 Microcode\n");
for (i = 0; i < 256; i++) {
RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
R200_cp_microcode[i][1]);
RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
R200_cp_microcode[i][0]);
}
} else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R300) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R350) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV350) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV380) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS480)) {
DRM_INFO("Loading R300 Microcode\n");
for (i = 0; i < 256; i++) {
RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
R300_cp_microcode[i][1]);
RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
R300_cp_microcode[i][0]);
}
} else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R420) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV410)) {
DRM_INFO("Loading R400 Microcode\n");
for (i = 0; i < 256; i++) {
RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
R420_cp_microcode[i][1]);
RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
R420_cp_microcode[i][0]);
}
} else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) {
DRM_INFO("Loading RS690 Microcode\n");
for (i = 0; i < 256; i++) {
RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
RS690_cp_microcode[i][1]);
RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
RS690_cp_microcode[i][0]);
}
} else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R520) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV530) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R580) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV560) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV570)) {
DRM_INFO("Loading R500 Microcode\n");
for (i = 0; i < 256; i++) {
RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
R520_cp_microcode[i][1]);
RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
R520_cp_microcode[i][0]);
}
}
}
/* Flush any pending commands to the CP. This should only be used just
* prior to a wait for idle, as it informs the engine that the command
* stream is ending.
*/
static void radeon_do_cp_flush(drm_radeon_private_t * dev_priv)
{
DRM_DEBUG("\n");
#if 0
u32 tmp;
tmp = RADEON_READ(RADEON_CP_RB_WPTR) | (1 << 31);
RADEON_WRITE(RADEON_CP_RB_WPTR, tmp);
#endif
}
/* Wait for the CP to go idle.
*/
int radeon_do_cp_idle(drm_radeon_private_t * dev_priv)
{
RING_LOCALS;
DRM_DEBUG("\n");
BEGIN_RING(6);
RADEON_PURGE_CACHE();
RADEON_PURGE_ZCACHE();
RADEON_WAIT_UNTIL_IDLE();
ADVANCE_RING();
COMMIT_RING();
return radeon_do_wait_for_idle(dev_priv);
}
/* Start the Command Processor.
*/
static void radeon_do_cp_start(drm_radeon_private_t * dev_priv)
{
RING_LOCALS;
DRM_DEBUG("\n");
radeon_do_wait_for_idle(dev_priv);
RADEON_WRITE(RADEON_CP_CSQ_CNTL, dev_priv->cp_mode);
dev_priv->cp_running = 1;
BEGIN_RING(8);
/* isync can only be written through cp on r5xx write it here */
OUT_RING(CP_PACKET0(RADEON_ISYNC_CNTL, 0));
OUT_RING(RADEON_ISYNC_ANY2D_IDLE3D |
RADEON_ISYNC_ANY3D_IDLE2D |
RADEON_ISYNC_WAIT_IDLEGUI |
RADEON_ISYNC_CPSCRATCH_IDLEGUI);
RADEON_PURGE_CACHE();
RADEON_PURGE_ZCACHE();
RADEON_WAIT_UNTIL_IDLE();
ADVANCE_RING();
COMMIT_RING();
dev_priv->track_flush |= RADEON_FLUSH_EMITED | RADEON_PURGE_EMITED;
}
/* Reset the Command Processor. This will not flush any pending
* commands, so you must wait for the CP command stream to complete
* before calling this routine.
*/
static void radeon_do_cp_reset(drm_radeon_private_t * dev_priv)
{
u32 cur_read_ptr;
DRM_DEBUG("\n");
cur_read_ptr = RADEON_READ(RADEON_CP_RB_RPTR);
RADEON_WRITE(RADEON_CP_RB_WPTR, cur_read_ptr);
SET_RING_HEAD(dev_priv, cur_read_ptr);
dev_priv->ring.tail = cur_read_ptr;
}
/* Stop the Command Processor. This will not flush any pending
* commands, so you must flush the command stream and wait for the CP
* to go idle before calling this routine.
*/
static void radeon_do_cp_stop(drm_radeon_private_t * dev_priv)
{
DRM_DEBUG("\n");
RADEON_WRITE(RADEON_CP_CSQ_CNTL, RADEON_CSQ_PRIDIS_INDDIS);
dev_priv->cp_running = 0;
}
/* Reset the engine. This will stop the CP if it is running.
*/
static int radeon_do_engine_reset(struct drm_device * dev)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
u32 clock_cntl_index = 0, mclk_cntl = 0, rbbm_soft_reset;
DRM_DEBUG("\n");
radeon_do_pixcache_flush(dev_priv);
if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV410) {
/* may need something similar for newer chips */
clock_cntl_index = RADEON_READ(RADEON_CLOCK_CNTL_INDEX);
mclk_cntl = RADEON_READ_PLL(dev, RADEON_MCLK_CNTL);
RADEON_WRITE_PLL(RADEON_MCLK_CNTL, (mclk_cntl |
RADEON_FORCEON_MCLKA |
RADEON_FORCEON_MCLKB |
RADEON_FORCEON_YCLKA |
RADEON_FORCEON_YCLKB |
RADEON_FORCEON_MC |
RADEON_FORCEON_AIC));
}
rbbm_soft_reset = RADEON_READ(RADEON_RBBM_SOFT_RESET);
RADEON_WRITE(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset |
RADEON_SOFT_RESET_CP |
RADEON_SOFT_RESET_HI |
RADEON_SOFT_RESET_SE |
RADEON_SOFT_RESET_RE |
RADEON_SOFT_RESET_PP |
RADEON_SOFT_RESET_E2 |
RADEON_SOFT_RESET_RB));
RADEON_READ(RADEON_RBBM_SOFT_RESET);
RADEON_WRITE(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset &
~(RADEON_SOFT_RESET_CP |
RADEON_SOFT_RESET_HI |
RADEON_SOFT_RESET_SE |
RADEON_SOFT_RESET_RE |
RADEON_SOFT_RESET_PP |
RADEON_SOFT_RESET_E2 |
RADEON_SOFT_RESET_RB)));
RADEON_READ(RADEON_RBBM_SOFT_RESET);
if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV410) {
RADEON_WRITE_PLL(RADEON_MCLK_CNTL, mclk_cntl);
RADEON_WRITE(RADEON_CLOCK_CNTL_INDEX, clock_cntl_index);
RADEON_WRITE(RADEON_RBBM_SOFT_RESET, rbbm_soft_reset);
}
/* setup the raster pipes */
if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R300)
radeon_init_pipes(dev_priv);
/* Reset the CP ring */
radeon_do_cp_reset(dev_priv);
/* The CP is no longer running after an engine reset */
dev_priv->cp_running = 0;
/* Reset any pending vertex, indirect buffers */
radeon_freelist_reset(dev);
return 0;
}
static void radeon_cp_init_ring_buffer(struct drm_device * dev,
drm_radeon_private_t * dev_priv)
{
u32 ring_start, cur_read_ptr;
u32 tmp;
/* Initialize the memory controller. With new memory map, the fb location
* is not changed, it should have been properly initialized already. Part
* of the problem is that the code below is bogus, assuming the GART is
* always appended to the fb which is not necessarily the case
*/
if (!dev_priv->new_memmap)
radeon_write_fb_location(dev_priv,
((dev_priv->gart_vm_start - 1) & 0xffff0000)
| (dev_priv->fb_location >> 16));
#if __OS_HAS_AGP
if (dev_priv->flags & RADEON_IS_AGP) {
radeon_write_agp_base(dev_priv, dev->agp->base);
radeon_write_agp_location(dev_priv,
(((dev_priv->gart_vm_start - 1 +
dev_priv->gart_size) & 0xffff0000) |
(dev_priv->gart_vm_start >> 16)));
ring_start = (dev_priv->cp_ring->offset
- dev->agp->base
+ dev_priv->gart_vm_start);
} else
#endif
ring_start = (dev_priv->cp_ring->offset
- (unsigned long)dev->sg->virtual
+ dev_priv->gart_vm_start);
RADEON_WRITE(RADEON_CP_RB_BASE, ring_start);
/* Set the write pointer delay */
RADEON_WRITE(RADEON_CP_RB_WPTR_DELAY, 0);
/* Initialize the ring buffer's read and write pointers */
cur_read_ptr = RADEON_READ(RADEON_CP_RB_RPTR);
RADEON_WRITE(RADEON_CP_RB_WPTR, cur_read_ptr);
SET_RING_HEAD(dev_priv, cur_read_ptr);
dev_priv->ring.tail = cur_read_ptr;
#if __OS_HAS_AGP
if (dev_priv->flags & RADEON_IS_AGP) {
RADEON_WRITE(RADEON_CP_RB_RPTR_ADDR,
dev_priv->ring_rptr->offset
- dev->agp->base + dev_priv->gart_vm_start);
} else
#endif
{
struct drm_sg_mem *entry = dev->sg;
unsigned long tmp_ofs, page_ofs;
tmp_ofs = dev_priv->ring_rptr->offset -
(unsigned long)dev->sg->virtual;
page_ofs = tmp_ofs >> PAGE_SHIFT;
RADEON_WRITE(RADEON_CP_RB_RPTR_ADDR, entry->busaddr[page_ofs]);
DRM_DEBUG("ring rptr: offset=0x%08lx handle=0x%08lx\n",
(unsigned long)entry->busaddr[page_ofs],
entry->handle + tmp_ofs);
}
/* Set ring buffer size */
#ifdef __BIG_ENDIAN
RADEON_WRITE(RADEON_CP_RB_CNTL,
RADEON_BUF_SWAP_32BIT |
(dev_priv->ring.fetch_size_l2ow << 18) |
(dev_priv->ring.rptr_update_l2qw << 8) |
dev_priv->ring.size_l2qw);
#else
RADEON_WRITE(RADEON_CP_RB_CNTL,
(dev_priv->ring.fetch_size_l2ow << 18) |
(dev_priv->ring.rptr_update_l2qw << 8) |
dev_priv->ring.size_l2qw);
#endif
/* Initialize the scratch register pointer. This will cause
* the scratch register values to be written out to memory
* whenever they are updated.
*
* We simply put this behind the ring read pointer, this works
* with PCI GART as well as (whatever kind of) AGP GART
*/
RADEON_WRITE(RADEON_SCRATCH_ADDR, RADEON_READ(RADEON_CP_RB_RPTR_ADDR)
+ RADEON_SCRATCH_REG_OFFSET);
dev_priv->scratch = ((__volatile__ u32 *)
dev_priv->ring_rptr->handle +
(RADEON_SCRATCH_REG_OFFSET / sizeof(u32)));
RADEON_WRITE(RADEON_SCRATCH_UMSK, 0x7);
/* Turn on bus mastering */
tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
RADEON_WRITE(RADEON_BUS_CNTL, tmp);
dev_priv->sarea_priv->last_frame = dev_priv->scratch[0] = 0;
RADEON_WRITE(RADEON_LAST_FRAME_REG, dev_priv->sarea_priv->last_frame);
dev_priv->sarea_priv->last_dispatch = dev_priv->scratch[1] = 0;
RADEON_WRITE(RADEON_LAST_DISPATCH_REG,
dev_priv->sarea_priv->last_dispatch);
dev_priv->sarea_priv->last_clear = dev_priv->scratch[2] = 0;
RADEON_WRITE(RADEON_LAST_CLEAR_REG, dev_priv->sarea_priv->last_clear);
radeon_do_wait_for_idle(dev_priv);
/* Sync everything up */
RADEON_WRITE(RADEON_ISYNC_CNTL,
(RADEON_ISYNC_ANY2D_IDLE3D |
RADEON_ISYNC_ANY3D_IDLE2D |
RADEON_ISYNC_WAIT_IDLEGUI |
RADEON_ISYNC_CPSCRATCH_IDLEGUI));
}
static void radeon_test_writeback(drm_radeon_private_t * dev_priv)
{
u32 tmp;
/* Start with assuming that writeback doesn't work */
dev_priv->writeback_works = 0;
/* Writeback doesn't seem to work everywhere, test it here and possibly
* enable it if it appears to work
*/
DRM_WRITE32(dev_priv->ring_rptr, RADEON_SCRATCHOFF(1), 0);
RADEON_WRITE(RADEON_SCRATCH_REG1, 0xdeadbeef);
for (tmp = 0; tmp < dev_priv->usec_timeout; tmp++) {
if (DRM_READ32(dev_priv->ring_rptr, RADEON_SCRATCHOFF(1)) ==
0xdeadbeef)
break;
DRM_UDELAY(1);
}
if (tmp < dev_priv->usec_timeout) {
dev_priv->writeback_works = 1;
DRM_INFO("writeback test succeeded in %d usecs\n", tmp);
} else {
dev_priv->writeback_works = 0;
DRM_INFO("writeback test failed\n");
}
if (radeon_no_wb == 1) {
dev_priv->writeback_works = 0;
DRM_INFO("writeback forced off\n");
}
if (!dev_priv->writeback_works) {
/* Disable writeback to avoid unnecessary bus master transfer */
RADEON_WRITE(RADEON_CP_RB_CNTL, RADEON_READ(RADEON_CP_RB_CNTL) |
RADEON_RB_NO_UPDATE);
RADEON_WRITE(RADEON_SCRATCH_UMSK, 0);
}
}
/* Enable or disable IGP GART on the chip */
static void radeon_set_igpgart(drm_radeon_private_t * dev_priv, int on)
{
u32 temp;
if (on) {
DRM_DEBUG("programming igp gart %08X %08lX %08X\n",
dev_priv->gart_vm_start,
(long)dev_priv->gart_info.bus_addr,
dev_priv->gart_size);
temp = IGP_READ_MCIND(dev_priv, RS480_MC_MISC_CNTL);
if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690)
IGP_WRITE_MCIND(RS480_MC_MISC_CNTL, (RS480_GART_INDEX_REG_EN |
RS690_BLOCK_GFX_D3_EN));
else
IGP_WRITE_MCIND(RS480_MC_MISC_CNTL, RS480_GART_INDEX_REG_EN);
IGP_WRITE_MCIND(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN |
RS480_VA_SIZE_32MB));
temp = IGP_READ_MCIND(dev_priv, RS480_GART_FEATURE_ID);
IGP_WRITE_MCIND(RS480_GART_FEATURE_ID, (RS480_HANG_EN |
RS480_TLB_ENABLE |
RS480_GTW_LAC_EN |
RS480_1LEVEL_GART));
temp = dev_priv->gart_info.bus_addr & 0xfffff000;
temp |= (upper_32_bits(dev_priv->gart_info.bus_addr) & 0xff) << 4;
IGP_WRITE_MCIND(RS480_GART_BASE, temp);
temp = IGP_READ_MCIND(dev_priv, RS480_AGP_MODE_CNTL);
IGP_WRITE_MCIND(RS480_AGP_MODE_CNTL, ((1 << RS480_REQ_TYPE_SNOOP_SHIFT) |
RS480_REQ_TYPE_SNOOP_DIS));
radeon_write_agp_base(dev_priv, dev_priv->gart_vm_start);
dev_priv->gart_size = 32*1024*1024;
temp = (((dev_priv->gart_vm_start - 1 + dev_priv->gart_size) &
0xffff0000) | (dev_priv->gart_vm_start >> 16));
radeon_write_agp_location(dev_priv, temp);
temp = IGP_READ_MCIND(dev_priv, RS480_AGP_ADDRESS_SPACE_SIZE);
IGP_WRITE_MCIND(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN |
RS480_VA_SIZE_32MB));
do {
temp = IGP_READ_MCIND(dev_priv, RS480_GART_CACHE_CNTRL);
if ((temp & RS480_GART_CACHE_INVALIDATE) == 0)
break;
DRM_UDELAY(1);
} while (1);
IGP_WRITE_MCIND(RS480_GART_CACHE_CNTRL,
RS480_GART_CACHE_INVALIDATE);
do {
temp = IGP_READ_MCIND(dev_priv, RS480_GART_CACHE_CNTRL);
if ((temp & RS480_GART_CACHE_INVALIDATE) == 0)
break;
DRM_UDELAY(1);
} while (1);
IGP_WRITE_MCIND(RS480_GART_CACHE_CNTRL, 0);
} else {
IGP_WRITE_MCIND(RS480_AGP_ADDRESS_SPACE_SIZE, 0);
}
}
static void radeon_set_pciegart(drm_radeon_private_t * dev_priv, int on)
{
u32 tmp = RADEON_READ_PCIE(dev_priv, RADEON_PCIE_TX_GART_CNTL);
if (on) {
DRM_DEBUG("programming pcie %08X %08lX %08X\n",
dev_priv->gart_vm_start,
(long)dev_priv->gart_info.bus_addr,
dev_priv->gart_size);
RADEON_WRITE_PCIE(RADEON_PCIE_TX_DISCARD_RD_ADDR_LO,
dev_priv->gart_vm_start);
RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_BASE,
dev_priv->gart_info.bus_addr);
RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_START_LO,
dev_priv->gart_vm_start);
RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_END_LO,
dev_priv->gart_vm_start +
dev_priv->gart_size - 1);
radeon_write_agp_location(dev_priv, 0xffffffc0); /* ?? */
RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_CNTL,
RADEON_PCIE_TX_GART_EN);
} else {
RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_CNTL,
tmp & ~RADEON_PCIE_TX_GART_EN);
}
}
/* Enable or disable PCI GART on the chip */
static void radeon_set_pcigart(drm_radeon_private_t * dev_priv, int on)
{
u32 tmp;
if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
(dev_priv->flags & RADEON_IS_IGPGART)) {
radeon_set_igpgart(dev_priv, on);
return;
}
if (dev_priv->flags & RADEON_IS_PCIE) {
radeon_set_pciegart(dev_priv, on);
return;
}
tmp = RADEON_READ(RADEON_AIC_CNTL);
if (on) {
RADEON_WRITE(RADEON_AIC_CNTL,
tmp | RADEON_PCIGART_TRANSLATE_EN);
/* set PCI GART page-table base address
*/
RADEON_WRITE(RADEON_AIC_PT_BASE, dev_priv->gart_info.bus_addr);
/* set address range for PCI address translate
*/
RADEON_WRITE(RADEON_AIC_LO_ADDR, dev_priv->gart_vm_start);
RADEON_WRITE(RADEON_AIC_HI_ADDR, dev_priv->gart_vm_start
+ dev_priv->gart_size - 1);
/* Turn off AGP aperture -- is this required for PCI GART?
*/
radeon_write_agp_location(dev_priv, 0xffffffc0);
RADEON_WRITE(RADEON_AGP_COMMAND, 0); /* clear AGP_COMMAND */
} else {
RADEON_WRITE(RADEON_AIC_CNTL,
tmp & ~RADEON_PCIGART_TRANSLATE_EN);
}
}
static int radeon_do_init_cp(struct drm_device * dev, drm_radeon_init_t * init)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
DRM_DEBUG("\n");
/* if we require new memory map but we don't have it fail */
if ((dev_priv->flags & RADEON_NEW_MEMMAP) && !dev_priv->new_memmap) {
DRM_ERROR("Cannot initialise DRM on this card\nThis card requires a new X.org DDX for 3D\n");
radeon_do_cleanup_cp(dev);
return -EINVAL;
}
if (init->is_pci && (dev_priv->flags & RADEON_IS_AGP)) {
DRM_DEBUG("Forcing AGP card to PCI mode\n");
dev_priv->flags &= ~RADEON_IS_AGP;
} else if (!(dev_priv->flags & (RADEON_IS_AGP | RADEON_IS_PCI | RADEON_IS_PCIE))
&& !init->is_pci) {
DRM_DEBUG("Restoring AGP flag\n");
dev_priv->flags |= RADEON_IS_AGP;
}
if ((!(dev_priv->flags & RADEON_IS_AGP)) && !dev->sg) {
DRM_ERROR("PCI GART memory not allocated!\n");
radeon_do_cleanup_cp(dev);
return -EINVAL;
}
dev_priv->usec_timeout = init->usec_timeout;
if (dev_priv->usec_timeout < 1 ||
dev_priv->usec_timeout > RADEON_MAX_USEC_TIMEOUT) {
DRM_DEBUG("TIMEOUT problem!\n");
radeon_do_cleanup_cp(dev);
return -EINVAL;
}
/* Enable vblank on CRTC1 for older X servers
*/
dev_priv->vblank_crtc = DRM_RADEON_VBLANK_CRTC1;
switch(init->func) {
case RADEON_INIT_R200_CP:
dev_priv->microcode_version = UCODE_R200;
break;
case RADEON_INIT_R300_CP:
dev_priv->microcode_version = UCODE_R300;
break;
default:
dev_priv->microcode_version = UCODE_R100;
}
dev_priv->do_boxes = 0;
dev_priv->cp_mode = init->cp_mode;
/* We don't support anything other than bus-mastering ring mode,
* but the ring can be in either AGP or PCI space for the ring
* read pointer.
*/
if ((init->cp_mode != RADEON_CSQ_PRIBM_INDDIS) &&
(init->cp_mode != RADEON_CSQ_PRIBM_INDBM)) {
DRM_DEBUG("BAD cp_mode (%x)!\n", init->cp_mode);
radeon_do_cleanup_cp(dev);
return -EINVAL;
}
switch (init->fb_bpp) {
case 16:
dev_priv->color_fmt = RADEON_COLOR_FORMAT_RGB565;
break;
case 32:
default:
dev_priv->color_fmt = RADEON_COLOR_FORMAT_ARGB8888;
break;
}
dev_priv->front_offset = init->front_offset;
dev_priv->front_pitch = init->front_pitch;
dev_priv->back_offset = init->back_offset;
dev_priv->back_pitch = init->back_pitch;
switch (init->depth_bpp) {
case 16:
dev_priv->depth_fmt = RADEON_DEPTH_FORMAT_16BIT_INT_Z;
break;
case 32:
default:
dev_priv->depth_fmt = RADEON_DEPTH_FORMAT_24BIT_INT_Z;
break;
}
dev_priv->depth_offset = init->depth_offset;
dev_priv->depth_pitch = init->depth_pitch;
/* Hardware state for depth clears. Remove this if/when we no
* longer clear the depth buffer with a 3D rectangle. Hard-code
* all values to prevent unwanted 3D state from slipping through
* and screwing with the clear operation.
*/
dev_priv->depth_clear.rb3d_cntl = (RADEON_PLANE_MASK_ENABLE |
(dev_priv->color_fmt << 10) |
(dev_priv->microcode_version ==
UCODE_R100 ? RADEON_ZBLOCK16 : 0));
dev_priv->depth_clear.rb3d_zstencilcntl =
(dev_priv->depth_fmt |
RADEON_Z_TEST_ALWAYS |
RADEON_STENCIL_TEST_ALWAYS |
RADEON_STENCIL_S_FAIL_REPLACE |
RADEON_STENCIL_ZPASS_REPLACE |
RADEON_STENCIL_ZFAIL_REPLACE | RADEON_Z_WRITE_ENABLE);
dev_priv->depth_clear.se_cntl = (RADEON_FFACE_CULL_CW |
RADEON_BFACE_SOLID |
RADEON_FFACE_SOLID |
RADEON_FLAT_SHADE_VTX_LAST |
RADEON_DIFFUSE_SHADE_FLAT |
RADEON_ALPHA_SHADE_FLAT |
RADEON_SPECULAR_SHADE_FLAT |
RADEON_FOG_SHADE_FLAT |
RADEON_VTX_PIX_CENTER_OGL |
RADEON_ROUND_MODE_TRUNC |
RADEON_ROUND_PREC_8TH_PIX);
dev_priv->ring_offset = init->ring_offset;
dev_priv->ring_rptr_offset = init->ring_rptr_offset;
dev_priv->buffers_offset = init->buffers_offset;
dev_priv->gart_textures_offset = init->gart_textures_offset;
dev_priv->sarea = drm_getsarea(dev);
if (!dev_priv->sarea) {
DRM_ERROR("could not find sarea!\n");
radeon_do_cleanup_cp(dev);
return -EINVAL;
}
dev_priv->cp_ring = drm_core_findmap(dev, init->ring_offset);
if (!dev_priv->cp_ring) {
DRM_ERROR("could not find cp ring region!\n");
radeon_do_cleanup_cp(dev);
return -EINVAL;
}
dev_priv->ring_rptr = drm_core_findmap(dev, init->ring_rptr_offset);
if (!dev_priv->ring_rptr) {
DRM_ERROR("could not find ring read pointer!\n");
radeon_do_cleanup_cp(dev);
return -EINVAL;
}
dev->agp_buffer_token = init->buffers_offset;
dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
if (!dev->agp_buffer_map) {
DRM_ERROR("could not find dma buffer region!\n");
radeon_do_cleanup_cp(dev);
return -EINVAL;
}
if (init->gart_textures_offset) {
dev_priv->gart_textures =
drm_core_findmap(dev, init->gart_textures_offset);
if (!dev_priv->gart_textures) {
DRM_ERROR("could not find GART texture region!\n");
radeon_do_cleanup_cp(dev);
return -EINVAL;
}
}
dev_priv->sarea_priv =
(drm_radeon_sarea_t *) ((u8 *) dev_priv->sarea->handle +
init->sarea_priv_offset);
#if __OS_HAS_AGP
if (dev_priv->flags & RADEON_IS_AGP) {
drm_core_ioremap(dev_priv->cp_ring, dev);
drm_core_ioremap(dev_priv->ring_rptr, dev);
drm_core_ioremap(dev->agp_buffer_map, dev);
if (!dev_priv->cp_ring->handle ||
!dev_priv->ring_rptr->handle ||
!dev->agp_buffer_map->handle) {
DRM_ERROR("could not find ioremap agp regions!\n");
radeon_do_cleanup_cp(dev);
return -EINVAL;
}
} else
#endif
{
dev_priv->cp_ring->handle = (void *)dev_priv->cp_ring->offset;
dev_priv->ring_rptr->handle =
(void *)dev_priv->ring_rptr->offset;
dev->agp_buffer_map->handle =
(void *)dev->agp_buffer_map->offset;
DRM_DEBUG("dev_priv->cp_ring->handle %p\n",
dev_priv->cp_ring->handle);
DRM_DEBUG("dev_priv->ring_rptr->handle %p\n",
dev_priv->ring_rptr->handle);
DRM_DEBUG("dev->agp_buffer_map->handle %p\n",
dev->agp_buffer_map->handle);
}
dev_priv->fb_location = (radeon_read_fb_location(dev_priv) & 0xffff) << 16;
dev_priv->fb_size =
((radeon_read_fb_location(dev_priv) & 0xffff0000u) + 0x10000)
- dev_priv->fb_location;
dev_priv->front_pitch_offset = (((dev_priv->front_pitch / 64) << 22) |
((dev_priv->front_offset
+ dev_priv->fb_location) >> 10));
dev_priv->back_pitch_offset = (((dev_priv->back_pitch / 64) << 22) |
((dev_priv->back_offset
+ dev_priv->fb_location) >> 10));
dev_priv->depth_pitch_offset = (((dev_priv->depth_pitch / 64) << 22) |
((dev_priv->depth_offset
+ dev_priv->fb_location) >> 10));
dev_priv->gart_size = init->gart_size;
/* New let's set the memory map ... */
if (dev_priv->new_memmap) {
u32 base = 0;
DRM_INFO("Setting GART location based on new memory map\n");
/* If using AGP, try to locate the AGP aperture at the same
* location in the card and on the bus, though we have to
* align it down.
*/
#if __OS_HAS_AGP
if (dev_priv->flags & RADEON_IS_AGP) {
base = dev->agp->base;
/* Check if valid */
if ((base + dev_priv->gart_size - 1) >= dev_priv->fb_location &&
base < (dev_priv->fb_location + dev_priv->fb_size - 1)) {
DRM_INFO("Can't use AGP base @0x%08lx, won't fit\n",
dev->agp->base);
base = 0;
}
}
#endif
/* If not or if AGP is at 0 (Macs), try to put it elsewhere */
if (base == 0) {
base = dev_priv->fb_location + dev_priv->fb_size;
if (base < dev_priv->fb_location ||
((base + dev_priv->gart_size) & 0xfffffffful) < base)
base = dev_priv->fb_location
- dev_priv->gart_size;
}
dev_priv->gart_vm_start = base & 0xffc00000u;
if (dev_priv->gart_vm_start != base)
DRM_INFO("GART aligned down from 0x%08x to 0x%08x\n",
base, dev_priv->gart_vm_start);
} else {
DRM_INFO("Setting GART location based on old memory map\n");
dev_priv->gart_vm_start = dev_priv->fb_location +
RADEON_READ(RADEON_CONFIG_APER_SIZE);
}
#if __OS_HAS_AGP
if (dev_priv->flags & RADEON_IS_AGP)
dev_priv->gart_buffers_offset = (dev->agp_buffer_map->offset
- dev->agp->base
+ dev_priv->gart_vm_start);
else
#endif
dev_priv->gart_buffers_offset = (dev->agp_buffer_map->offset
- (unsigned long)dev->sg->virtual
+ dev_priv->gart_vm_start);
DRM_DEBUG("dev_priv->gart_size %d\n", dev_priv->gart_size);
DRM_DEBUG("dev_priv->gart_vm_start 0x%x\n", dev_priv->gart_vm_start);
DRM_DEBUG("dev_priv->gart_buffers_offset 0x%lx\n",
dev_priv->gart_buffers_offset);
dev_priv->ring.start = (u32 *) dev_priv->cp_ring->handle;
dev_priv->ring.end = ((u32 *) dev_priv->cp_ring->handle
+ init->ring_size / sizeof(u32));
dev_priv->ring.size = init->ring_size;
dev_priv->ring.size_l2qw = drm_order(init->ring_size / 8);
dev_priv->ring.rptr_update = /* init->rptr_update */ 4096;
dev_priv->ring.rptr_update_l2qw = drm_order( /* init->rptr_update */ 4096 / 8);
dev_priv->ring.fetch_size = /* init->fetch_size */ 32;
dev_priv->ring.fetch_size_l2ow = drm_order( /* init->fetch_size */ 32 / 16);
dev_priv->ring.tail_mask = (dev_priv->ring.size / sizeof(u32)) - 1;
dev_priv->ring.high_mark = RADEON_RING_HIGH_MARK;
#if __OS_HAS_AGP
if (dev_priv->flags & RADEON_IS_AGP) {
/* Turn off PCI GART */
radeon_set_pcigart(dev_priv, 0);
} else
#endif
{
dev_priv->gart_info.table_mask = DMA_BIT_MASK(32);
/* if we have an offset set from userspace */
if (dev_priv->pcigart_offset_set) {
dev_priv->gart_info.bus_addr =
dev_priv->pcigart_offset + dev_priv->fb_location;
dev_priv->gart_info.mapping.offset =
dev_priv->pcigart_offset + dev_priv->fb_aper_offset;
dev_priv->gart_info.mapping.size =
dev_priv->gart_info.table_size;
drm_core_ioremap_wc(&dev_priv->gart_info.mapping, dev);
dev_priv->gart_info.addr =
dev_priv->gart_info.mapping.handle;
if (dev_priv->flags & RADEON_IS_PCIE)
dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCIE;
else
dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
dev_priv->gart_info.gart_table_location =
DRM_ATI_GART_FB;
DRM_DEBUG("Setting phys_pci_gart to %p %08lX\n",
dev_priv->gart_info.addr,
dev_priv->pcigart_offset);
} else {
if (dev_priv->flags & RADEON_IS_IGPGART)
dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_IGP;
else
dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
dev_priv->gart_info.gart_table_location =
DRM_ATI_GART_MAIN;
dev_priv->gart_info.addr = NULL;
dev_priv->gart_info.bus_addr = 0;
if (dev_priv->flags & RADEON_IS_PCIE) {
DRM_ERROR
("Cannot use PCI Express without GART in FB memory\n");
radeon_do_cleanup_cp(dev);
return -EINVAL;
}
}
if (!drm_ati_pcigart_init(dev, &dev_priv->gart_info)) {
DRM_ERROR("failed to init PCI GART!\n");
radeon_do_cleanup_cp(dev);
return -ENOMEM;
}
/* Turn on PCI GART */
radeon_set_pcigart(dev_priv, 1);
}
radeon_cp_load_microcode(dev_priv);
radeon_cp_init_ring_buffer(dev, dev_priv);
dev_priv->last_buf = 0;
radeon_do_engine_reset(dev);
radeon_test_writeback(dev_priv);
return 0;
}
static int radeon_do_cleanup_cp(struct drm_device * dev)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
DRM_DEBUG("\n");
/* Make sure interrupts are disabled here because the uninstall ioctl
* may not have been called from userspace and after dev_private
* is freed, it's too late.
*/
if (dev->irq_enabled)
drm_irq_uninstall(dev);
#if __OS_HAS_AGP
if (dev_priv->flags & RADEON_IS_AGP) {
if (dev_priv->cp_ring != NULL) {
drm_core_ioremapfree(dev_priv->cp_ring, dev);
dev_priv->cp_ring = NULL;
}
if (dev_priv->ring_rptr != NULL) {
drm_core_ioremapfree(dev_priv->ring_rptr, dev);
dev_priv->ring_rptr = NULL;
}
if (dev->agp_buffer_map != NULL) {
drm_core_ioremapfree(dev->agp_buffer_map, dev);
dev->agp_buffer_map = NULL;
}
} else
#endif
{
if (dev_priv->gart_info.bus_addr) {
/* Turn off PCI GART */
radeon_set_pcigart(dev_priv, 0);
if (!drm_ati_pcigart_cleanup(dev, &dev_priv->gart_info))
DRM_ERROR("failed to cleanup PCI GART!\n");
}
if (dev_priv->gart_info.gart_table_location == DRM_ATI_GART_FB)
{
drm_core_ioremapfree(&dev_priv->gart_info.mapping, dev);
dev_priv->gart_info.addr = 0;
}
}
/* only clear to the start of flags */
memset(dev_priv, 0, offsetof(drm_radeon_private_t, flags));
return 0;
}
/* This code will reinit the Radeon CP hardware after a resume from disc.
* AFAIK, it would be very difficult to pickle the state at suspend time, so
* here we make sure that all Radeon hardware initialisation is re-done without
* affecting running applications.
*
* Charl P. Botha <http://cpbotha.net>
*/
static int radeon_do_resume_cp(struct drm_device * dev)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
if (!dev_priv) {
DRM_ERROR("Called with no initialization\n");
return -EINVAL;
}
DRM_DEBUG("Starting radeon_do_resume_cp()\n");
#if __OS_HAS_AGP
if (dev_priv->flags & RADEON_IS_AGP) {
/* Turn off PCI GART */
radeon_set_pcigart(dev_priv, 0);
} else
#endif
{
/* Turn on PCI GART */
radeon_set_pcigart(dev_priv, 1);
}
radeon_cp_load_microcode(dev_priv);
radeon_cp_init_ring_buffer(dev, dev_priv);
radeon_do_engine_reset(dev);
radeon_irq_set_state(dev, RADEON_SW_INT_ENABLE, 1);
DRM_DEBUG("radeon_do_resume_cp() complete\n");
return 0;
}
int radeon_cp_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_radeon_init_t *init = data;
LOCK_TEST_WITH_RETURN(dev, file_priv);
if (init->func == RADEON_INIT_R300_CP)
r300_init_reg_flags(dev);
switch (init->func) {
case RADEON_INIT_CP:
case RADEON_INIT_R200_CP:
case RADEON_INIT_R300_CP:
return radeon_do_init_cp(dev, init);
case RADEON_CLEANUP_CP:
return radeon_do_cleanup_cp(dev);
}
return -EINVAL;
}
int radeon_cp_start(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
DRM_DEBUG("\n");
LOCK_TEST_WITH_RETURN(dev, file_priv);
if (dev_priv->cp_running) {
DRM_DEBUG("while CP running\n");
return 0;
}
if (dev_priv->cp_mode == RADEON_CSQ_PRIDIS_INDDIS) {
DRM_DEBUG("called with bogus CP mode (%d)\n",
dev_priv->cp_mode);
return 0;
}
radeon_do_cp_start(dev_priv);
return 0;
}
/* Stop the CP. The engine must have been idled before calling this
* routine.
*/
int radeon_cp_stop(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
drm_radeon_cp_stop_t *stop = data;
int ret;
DRM_DEBUG("\n");
LOCK_TEST_WITH_RETURN(dev, file_priv);
if (!dev_priv->cp_running)
return 0;
/* Flush any pending CP commands. This ensures any outstanding
* commands are exectuted by the engine before we turn it off.
*/
if (stop->flush) {
radeon_do_cp_flush(dev_priv);
}
/* If we fail to make the engine go idle, we return an error
* code so that the DRM ioctl wrapper can try again.
*/
if (stop->idle) {
ret = radeon_do_cp_idle(dev_priv);
if (ret)
return ret;
}
/* Finally, we can turn off the CP. If the engine isn't idle,
* we will get some dropped triangles as they won't be fully
* rendered before the CP is shut down.
*/
radeon_do_cp_stop(dev_priv);
/* Reset the engine */
radeon_do_engine_reset(dev);
return 0;
}
void radeon_do_release(struct drm_device * dev)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
int i, ret;
if (dev_priv) {
if (dev_priv->cp_running) {
/* Stop the cp */
while ((ret = radeon_do_cp_idle(dev_priv)) != 0) {
DRM_DEBUG("radeon_do_cp_idle %d\n", ret);
#ifdef __linux__
schedule();
#else
tsleep(&ret, PZERO, "rdnrel", 1);
#endif
}
radeon_do_cp_stop(dev_priv);
radeon_do_engine_reset(dev);
}
/* Disable *all* interrupts */
if (dev_priv->mmio) /* remove this after permanent addmaps */
RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
if (dev_priv->mmio) { /* remove all surfaces */
for (i = 0; i < RADEON_MAX_SURFACES; i++) {
RADEON_WRITE(RADEON_SURFACE0_INFO + 16 * i, 0);
RADEON_WRITE(RADEON_SURFACE0_LOWER_BOUND +
16 * i, 0);
RADEON_WRITE(RADEON_SURFACE0_UPPER_BOUND +
16 * i, 0);
}
}
/* Free memory heap structures */
radeon_mem_takedown(&(dev_priv->gart_heap));
radeon_mem_takedown(&(dev_priv->fb_heap));
/* deallocate kernel resources */
radeon_do_cleanup_cp(dev);
}
}
/* Just reset the CP ring. Called as part of an X Server engine reset.
*/
int radeon_cp_reset(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
DRM_DEBUG("\n");
LOCK_TEST_WITH_RETURN(dev, file_priv);
if (!dev_priv) {
DRM_DEBUG("called before init done\n");
return -EINVAL;
}
radeon_do_cp_reset(dev_priv);
/* The CP is no longer running after an engine reset */
dev_priv->cp_running = 0;
return 0;
}
int radeon_cp_idle(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
DRM_DEBUG("\n");
LOCK_TEST_WITH_RETURN(dev, file_priv);
return radeon_do_cp_idle(dev_priv);
}
/* Added by Charl P. Botha to call radeon_do_resume_cp().
*/
int radeon_cp_resume(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
return radeon_do_resume_cp(dev);
}
int radeon_engine_reset(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
DRM_DEBUG("\n");
LOCK_TEST_WITH_RETURN(dev, file_priv);
return radeon_do_engine_reset(dev);
}
/* ================================================================
* Fullscreen mode
*/
/* KW: Deprecated to say the least:
*/
int radeon_fullscreen(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
return 0;
}
/* ================================================================
* Freelist management
*/
/* Original comment: FIXME: ROTATE_BUFS is a hack to cycle through
* bufs until freelist code is used. Note this hides a problem with
* the scratch register * (used to keep track of last buffer
* completed) being written to before * the last buffer has actually
* completed rendering.
*
* KW: It's also a good way to find free buffers quickly.
*
* KW: Ideally this loop wouldn't exist, and freelist_get wouldn't
* sleep. However, bugs in older versions of radeon_accel.c mean that
* we essentially have to do this, else old clients will break.
*
* However, it does leave open a potential deadlock where all the
* buffers are held by other clients, which can't release them because
* they can't get the lock.
*/
struct drm_buf *radeon_freelist_get(struct drm_device * dev)
{
struct drm_device_dma *dma = dev->dma;
drm_radeon_private_t *dev_priv = dev->dev_private;
drm_radeon_buf_priv_t *buf_priv;
struct drm_buf *buf;
int i, t;
int start;
if (++dev_priv->last_buf >= dma->buf_count)
dev_priv->last_buf = 0;
start = dev_priv->last_buf;
for (t = 0; t < dev_priv->usec_timeout; t++) {
u32 done_age = GET_SCRATCH(1);
DRM_DEBUG("done_age = %d\n", done_age);
for (i = start; i < dma->buf_count; i++) {
buf = dma->buflist[i];
buf_priv = buf->dev_private;
if (buf->file_priv == NULL || (buf->pending &&
buf_priv->age <=
done_age)) {
dev_priv->stats.requested_bufs++;
buf->pending = 0;
return buf;
}
start = 0;
}
if (t) {
DRM_UDELAY(1);
dev_priv->stats.freelist_loops++;
}
}
DRM_DEBUG("returning NULL!\n");
return NULL;
}
#if 0
struct drm_buf *radeon_freelist_get(struct drm_device * dev)
{
struct drm_device_dma *dma = dev->dma;
drm_radeon_private_t *dev_priv = dev->dev_private;
drm_radeon_buf_priv_t *buf_priv;
struct drm_buf *buf;
int i, t;
int start;
u32 done_age = DRM_READ32(dev_priv->ring_rptr, RADEON_SCRATCHOFF(1));
if (++dev_priv->last_buf >= dma->buf_count)
dev_priv->last_buf = 0;
start = dev_priv->last_buf;
dev_priv->stats.freelist_loops++;
for (t = 0; t < 2; t++) {
for (i = start; i < dma->buf_count; i++) {
buf = dma->buflist[i];
buf_priv = buf->dev_private;
if (buf->file_priv == 0 || (buf->pending &&
buf_priv->age <=
done_age)) {
dev_priv->stats.requested_bufs++;
buf->pending = 0;
return buf;
}
}
start = 0;
}
return NULL;
}
#endif
void radeon_freelist_reset(struct drm_device * dev)
{
struct drm_device_dma *dma = dev->dma;
drm_radeon_private_t *dev_priv = dev->dev_private;
int i;
dev_priv->last_buf = 0;
for (i = 0; i < dma->buf_count; i++) {
struct drm_buf *buf = dma->buflist[i];
drm_radeon_buf_priv_t *buf_priv = buf->dev_private;
buf_priv->age = 0;
}
}
/* ================================================================
* CP command submission
*/
int radeon_wait_ring(drm_radeon_private_t * dev_priv, int n)
{
drm_radeon_ring_buffer_t *ring = &dev_priv->ring;
int i;
u32 last_head = GET_RING_HEAD(dev_priv);
for (i = 0; i < dev_priv->usec_timeout; i++) {
u32 head = GET_RING_HEAD(dev_priv);
ring->space = (head - ring->tail) * sizeof(u32);
if (ring->space <= 0)
ring->space += ring->size;
if (ring->space > n)
return 0;
dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
if (head != last_head)
i = 0;
last_head = head;
DRM_UDELAY(1);
}
/* FIXME: This return value is ignored in the BEGIN_RING macro! */
#if RADEON_FIFO_DEBUG
radeon_status(dev_priv);
DRM_ERROR("failed!\n");
#endif
return -EBUSY;
}
static int radeon_cp_get_buffers(struct drm_device *dev,
struct drm_file *file_priv,
struct drm_dma * d)
{
int i;
struct drm_buf *buf;
for (i = d->granted_count; i < d->request_count; i++) {
buf = radeon_freelist_get(dev);
if (!buf)
return -EBUSY; /* NOTE: broken client */
buf->file_priv = file_priv;
if (DRM_COPY_TO_USER(&d->request_indices[i], &buf->idx,
sizeof(buf->idx)))
return -EFAULT;
if (DRM_COPY_TO_USER(&d->request_sizes[i], &buf->total,
sizeof(buf->total)))
return -EFAULT;
d->granted_count++;
}
return 0;
}
int radeon_cp_buffers(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
struct drm_device_dma *dma = dev->dma;
int ret = 0;
struct drm_dma *d = data;
LOCK_TEST_WITH_RETURN(dev, file_priv);
/* Please don't send us buffers.
*/
if (d->send_count != 0) {
DRM_ERROR("Process %d trying to send %d buffers via drmDMA\n",
DRM_CURRENTPID, d->send_count);
return -EINVAL;
}
/* We'll send you buffers.
*/
if (d->request_count < 0 || d->request_count > dma->buf_count) {
DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n",
DRM_CURRENTPID, d->request_count, dma->buf_count);
return -EINVAL;
}
d->granted_count = 0;
if (d->request_count) {
ret = radeon_cp_get_buffers(dev, file_priv, d);
}
return ret;
}
int radeon_driver_load(struct drm_device *dev, unsigned long flags)
{
drm_radeon_private_t *dev_priv;
int ret = 0;
dev_priv = drm_alloc(sizeof(drm_radeon_private_t), DRM_MEM_DRIVER);
if (dev_priv == NULL)
return -ENOMEM;
memset(dev_priv, 0, sizeof(drm_radeon_private_t));
dev->dev_private = (void *)dev_priv;
dev_priv->flags = flags;
switch (flags & RADEON_FAMILY_MASK) {
case CHIP_R100:
case CHIP_RV200:
case CHIP_R200:
case CHIP_R300:
case CHIP_R350:
case CHIP_R420:
case CHIP_RV410:
case CHIP_RV515:
case CHIP_R520:
case CHIP_RV570:
case CHIP_R580:
dev_priv->flags |= RADEON_HAS_HIERZ;
break;
default:
/* all other chips have no hierarchical z buffer */
break;
}
if (drm_device_is_agp(dev))
dev_priv->flags |= RADEON_IS_AGP;
else if (drm_device_is_pcie(dev))
dev_priv->flags |= RADEON_IS_PCIE;
else
dev_priv->flags |= RADEON_IS_PCI;
DRM_DEBUG("%s card detected\n",
((dev_priv->flags & RADEON_IS_AGP) ? "AGP" : (((dev_priv->flags & RADEON_IS_PCIE) ? "PCIE" : "PCI"))));
return ret;
}
/* Create mappings for registers and framebuffer so userland doesn't necessarily
* have to find them.
*/
int radeon_driver_firstopen(struct drm_device *dev)
{
int ret;
drm_local_map_t *map;
drm_radeon_private_t *dev_priv = dev->dev_private;
dev_priv->gart_info.table_size = RADEON_PCIGART_TABLE_SIZE;
ret = drm_addmap(dev, drm_get_resource_start(dev, 2),
drm_get_resource_len(dev, 2), _DRM_REGISTERS,
_DRM_READ_ONLY, &dev_priv->mmio);
if (ret != 0)
return ret;
dev_priv->fb_aper_offset = drm_get_resource_start(dev, 0);
ret = drm_addmap(dev, dev_priv->fb_aper_offset,
drm_get_resource_len(dev, 0), _DRM_FRAME_BUFFER,
_DRM_WRITE_COMBINING, &map);
if (ret != 0)
return ret;
return 0;
}
int radeon_driver_unload(struct drm_device *dev)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
DRM_DEBUG("\n");
drm_free(dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER);
dev->dev_private = NULL;
return 0;
}
