diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_cp.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_cp.c | 1773 |
1 files changed, 1773 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c new file mode 100644 index 0000000..e53158f --- /dev/null +++ b/drivers/gpu/drm/radeon/radeon_cp.c @@ -0,0 +1,1773 @@ +/* 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 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 { + /* 3D */ + tmp = RADEON_READ(R300_RB3D_DSTCACHE_CTLSTAT); + tmp |= RADEON_RB3D_DC_FLUSH_ALL; + RADEON_WRITE(R300_RB3D_DSTCACHE_CTLSTAT, tmp); + + /* 2D */ + tmp = RADEON_READ(R300_DSTCACHE_CTLSTAT); + tmp |= RADEON_RB3D_DC_FLUSH_ALL; + RADEON_WRITE(R300_DSTCACHE_CTLSTAT, tmp); + + for (i = 0; i < dev_priv->usec_timeout; i++) { + if (!(RADEON_READ(R300_DSTCACHE_CTLSTAT) + & RADEON_RB3D_DC_BUSY)) { + return 0; + } + DRM_UDELAY(1); + } + } + +#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); + } + +#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); + } + +#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(6); + + RADEON_PURGE_CACHE(); + RADEON_PURGE_ZCACHE(); + RADEON_WAIT_UNTIL_IDLE(); + + ADVANCE_RING(); + COMMIT_RING(); +} + +/* 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 + + /* Start with assuming that writeback doesn't work */ + dev_priv->writeback_works = 0; + + /* 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; + + /* 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(&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_enable_interrupt(dev); + + 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; +} |
