/* * Copyright 2008 Advanced Micro Devices, Inc. * Copyright 2008 Red Hat Inc. * Copyright 2009 Jerome Glisse. * * 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 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 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Dave Airlie * Alex Deucher * Jerome Glisse */ #include #include #include #include "rv515d.h" #include "radeon.h" #include "radeon_asic.h" #include "atom.h" #include "rv515_reg_safe.h" /* This files gather functions specifics to: rv515 */ static int rv515_debugfs_pipes_info_init(struct radeon_device *rdev); static int rv515_debugfs_ga_info_init(struct radeon_device *rdev); static void rv515_gpu_init(struct radeon_device *rdev); int rv515_mc_wait_for_idle(struct radeon_device *rdev); static const u32 crtc_offsets[2] = { 0, AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL }; void rv515_debugfs(struct radeon_device *rdev) { if (r100_debugfs_rbbm_init(rdev)) { DRM_ERROR("Failed to register debugfs file for RBBM !\n"); } if (rv515_debugfs_pipes_info_init(rdev)) { DRM_ERROR("Failed to register debugfs file for pipes !\n"); } if (rv515_debugfs_ga_info_init(rdev)) { DRM_ERROR("Failed to register debugfs file for pipes !\n"); } } void rv515_ring_start(struct radeon_device *rdev, struct radeon_ring *ring) { int r; r = radeon_ring_lock(rdev, ring, 64); if (r) { return; } radeon_ring_write(ring, PACKET0(ISYNC_CNTL, 0)); radeon_ring_write(ring, ISYNC_ANY2D_IDLE3D | ISYNC_ANY3D_IDLE2D | ISYNC_WAIT_IDLEGUI | ISYNC_CPSCRATCH_IDLEGUI); radeon_ring_write(ring, PACKET0(WAIT_UNTIL, 0)); radeon_ring_write(ring, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN); radeon_ring_write(ring, PACKET0(R300_DST_PIPE_CONFIG, 0)); radeon_ring_write(ring, R300_PIPE_AUTO_CONFIG); radeon_ring_write(ring, PACKET0(GB_SELECT, 0)); radeon_ring_write(ring, 0); radeon_ring_write(ring, PACKET0(GB_ENABLE, 0)); radeon_ring_write(ring, 0); radeon_ring_write(ring, PACKET0(R500_SU_REG_DEST, 0)); radeon_ring_write(ring, (1 << rdev->num_gb_pipes) - 1); radeon_ring_write(ring, PACKET0(VAP_INDEX_OFFSET, 0)); radeon_ring_write(ring, 0); radeon_ring_write(ring, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0)); radeon_ring_write(ring, RB3D_DC_FLUSH | RB3D_DC_FREE); radeon_ring_write(ring, PACKET0(ZB_ZCACHE_CTLSTAT, 0)); radeon_ring_write(ring, ZC_FLUSH | ZC_FREE); radeon_ring_write(ring, PACKET0(WAIT_UNTIL, 0)); radeon_ring_write(ring, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN); radeon_ring_write(ring, PACKET0(GB_AA_CONFIG, 0)); radeon_ring_write(ring, 0); radeon_ring_write(ring, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0)); radeon_ring_write(ring, RB3D_DC_FLUSH | RB3D_DC_FREE); radeon_ring_write(ring, PACKET0(ZB_ZCACHE_CTLSTAT, 0)); radeon_ring_write(ring, ZC_FLUSH | ZC_FREE); radeon_ring_write(ring, PACKET0(GB_MSPOS0, 0)); radeon_ring_write(ring, ((6 << MS_X0_SHIFT) | (6 << MS_Y0_SHIFT) | (6 << MS_X1_SHIFT) | (6 << MS_Y1_SHIFT) | (6 << MS_X2_SHIFT) | (6 << MS_Y2_SHIFT) | (6 << MSBD0_Y_SHIFT) | (6 << MSBD0_X_SHIFT))); radeon_ring_write(ring, PACKET0(GB_MSPOS1, 0)); radeon_ring_write(ring, ((6 << MS_X3_SHIFT) | (6 << MS_Y3_SHIFT) | (6 << MS_X4_SHIFT) | (6 << MS_Y4_SHIFT) | (6 << MS_X5_SHIFT) | (6 << MS_Y5_SHIFT) | (6 << MSBD1_SHIFT))); radeon_ring_write(ring, PACKET0(GA_ENHANCE, 0)); radeon_ring_write(ring, GA_DEADLOCK_CNTL | GA_FASTSYNC_CNTL); radeon_ring_write(ring, PACKET0(GA_POLY_MODE, 0)); radeon_ring_write(ring, FRONT_PTYPE_TRIANGE | BACK_PTYPE_TRIANGE); radeon_ring_write(ring, PACKET0(GA_ROUND_MODE, 0)); radeon_ring_write(ring, GEOMETRY_ROUND_NEAREST | COLOR_ROUND_NEAREST); radeon_ring_write(ring, PACKET0(0x20C8, 0)); radeon_ring_write(ring, 0); radeon_ring_unlock_commit(rdev, ring, false); } int rv515_mc_wait_for_idle(struct radeon_device *rdev) { unsigned i; uint32_t tmp; for (i = 0; i < rdev->usec_timeout; i++) { /* read MC_STATUS */ tmp = RREG32_MC(MC_STATUS); if (tmp & MC_STATUS_IDLE) { return 0; } DRM_UDELAY(1); } return -1; } void rv515_vga_render_disable(struct radeon_device *rdev) { WREG32(R_000300_VGA_RENDER_CONTROL, RREG32(R_000300_VGA_RENDER_CONTROL) & C_000300_VGA_VSTATUS_CNTL); } static void rv515_gpu_init(struct radeon_device *rdev) { unsigned pipe_select_current, gb_pipe_select, tmp; if (r100_gui_wait_for_idle(rdev)) { printk(KERN_WARNING "Failed to wait GUI idle while " "resetting GPU. Bad things might happen.\n"); } rv515_vga_render_disable(rdev); r420_pipes_init(rdev); gb_pipe_select = RREG32(R400_GB_PIPE_SELECT); tmp = RREG32(R300_DST_PIPE_CONFIG); pipe_select_current = (tmp >> 2) & 3; tmp = (1 << pipe_select_current) | (((gb_pipe_select >> 8) & 0xF) << 4); WREG32_PLL(0x000D, tmp); if (r100_gui_wait_for_idle(rdev)) { printk(KERN_WARNING "Failed to wait GUI idle while " "resetting GPU. Bad things might happen.\n"); } if (rv515_mc_wait_for_idle(rdev)) { printk(KERN_WARNING "Failed to wait MC idle while " "programming pipes. Bad things might happen.\n"); } } static void rv515_vram_get_type(struct radeon_device *rdev) { uint32_t tmp; rdev->mc.vram_width = 128; rdev->mc.vram_is_ddr = true; tmp = RREG32_MC(RV515_MC_CNTL) & MEM_NUM_CHANNELS_MASK; switch (tmp) { case 0: rdev->mc.vram_width = 64; break; case 1: rdev->mc.vram_width = 128; break; default: rdev->mc.vram_width = 128; break; } } static void rv515_mc_init(struct radeon_device *rdev) { rv515_vram_get_type(rdev); r100_vram_init_sizes(rdev); radeon_vram_location(rdev, &rdev->mc, 0); rdev->mc.gtt_base_align = 0; if (!(rdev->flags & RADEON_IS_AGP)) radeon_gtt_location(rdev, &rdev->mc); radeon_update_bandwidth_info(rdev); } uint32_t rv515_mc_rreg(struct radeon_device *rdev, uint32_t reg) { unsigned long flags; uint32_t r; spin_lock_irqsave(&rdev->mc_idx_lock, flags); WREG32(MC_IND_INDEX, 0x7f0000 | (reg & 0xffff)); r = RREG32(MC_IND_DATA); WREG32(MC_IND_INDEX, 0); spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); return r; } void rv515_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) { unsigned long flags; spin_lock_irqsave(&rdev->mc_idx_lock, flags); WREG32(MC_IND_INDEX, 0xff0000 | ((reg) & 0xffff)); WREG32(MC_IND_DATA, (v)); WREG32(MC_IND_INDEX, 0); spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); } #if defined(CONFIG_DEBUG_FS) static int rv515_debugfs_pipes_info(struct seq_file *m, void *data) { struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; struct radeon_device *rdev = dev->dev_private; uint32_t tmp; tmp = RREG32(GB_PIPE_SELECT); seq_printf(m, "GB_PIPE_SELECT 0x%08x\n", tmp); tmp = RREG32(SU_REG_DEST); seq_printf(m, "SU_REG_DEST 0x%08x\n", tmp); tmp = RREG32(GB_TILE_CONFIG); seq_printf(m, "GB_TILE_CONFIG 0x%08x\n", tmp); tmp = RREG32(DST_PIPE_CONFIG); seq_printf(m, "DST_PIPE_CONFIG 0x%08x\n", tmp); return 0; } static int rv515_debugfs_ga_info(struct seq_file *m, void *data) { struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; struct radeon_device *rdev = dev->dev_private; uint32_t tmp; tmp = RREG32(0x2140); seq_printf(m, "VAP_CNTL_STATUS 0x%08x\n", tmp); radeon_asic_reset(rdev); tmp = RREG32(0x425C); seq_printf(m, "GA_IDLE 0x%08x\n", tmp); return 0; } static struct drm_info_list rv515_pipes_info_list[] = { {"rv515_pipes_info", rv515_debugfs_pipes_info, 0, NULL}, }; static struct drm_info_list rv515_ga_info_list[] = { {"rv515_ga_info", rv515_debugfs_ga_info, 0, NULL}, }; #endif static int rv515_debugfs_pipes_info_init(struct radeon_device *rdev) { #if defined(CONFIG_DEBUG_FS) return radeon_debugfs_add_files(rdev, rv515_pipes_info_list, 1); #else return 0; #endif } static int rv515_debugfs_ga_info_init(struct radeon_device *rdev) { #if defined(CONFIG_DEBUG_FS) return radeon_debugfs_add_files(rdev, rv515_ga_info_list, 1); #else return 0; #endif } void rv515_mc_stop(struct radeon_device *rdev, struct rv515_mc_save *save) { u32 crtc_enabled, tmp, frame_count, blackout; int i, j; save->vga_render_control = RREG32(R_000300_VGA_RENDER_CONTROL); save->vga_hdp_control = RREG32(R_000328_VGA_HDP_CONTROL); /* disable VGA render */ WREG32(R_000300_VGA_RENDER_CONTROL, 0); /* blank the display controllers */ for (i = 0; i < rdev->num_crtc; i++) { crtc_enabled = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]) & AVIVO_CRTC_EN; if (crtc_enabled) { save->crtc_enabled[i] = true; tmp = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]); if (!(tmp & AVIVO_CRTC_DISP_READ_REQUEST_DISABLE)) { radeon_wait_for_vblank(rdev, i); WREG32(AVIVO_D1CRTC_UPDATE_LOCK + crtc_offsets[i], 1); tmp |= AVIVO_CRTC_DISP_READ_REQUEST_DISABLE; WREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i], tmp); WREG32(AVIVO_D1CRTC_UPDATE_LOCK + crtc_offsets[i], 0); } /* wait for the next frame */ frame_count = radeon_get_vblank_counter(rdev, i); for (j = 0; j < rdev->usec_timeout; j++) { if (radeon_get_vblank_counter(rdev, i) != frame_count) break; udelay(1); } /* XXX this is a hack to avoid strange behavior with EFI on certain systems */ WREG32(AVIVO_D1CRTC_UPDATE_LOCK + crtc_offsets[i], 1); tmp = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]); tmp &= ~AVIVO_CRTC_EN; WREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i], tmp); WREG32(AVIVO_D1CRTC_UPDATE_LOCK + crtc_offsets[i], 0); save->crtc_enabled[i] = false; /* ***** */ } else { save->crtc_enabled[i] = false; } } radeon_mc_wait_for_idle(rdev); if (rdev->family >= CHIP_R600) { if (rdev->family >= CHIP_RV770) blackout = RREG32(R700_MC_CITF_CNTL); else blackout = RREG32(R600_CITF_CNTL); if ((blackout & R600_BLACKOUT_MASK) != R600_BLACKOUT_MASK) { /* Block CPU access */ WREG32(R600_BIF_FB_EN, 0); /* blackout the MC */ blackout |= R600_BLACKOUT_MASK; if (rdev->family >= CHIP_RV770) WREG32(R700_MC_CITF_CNTL, blackout); else WREG32(R600_CITF_CNTL, blackout); } } /* wait for the MC to settle */ udelay(100); /* lock double buffered regs */ for (i = 0; i < rdev->num_crtc; i++) { if (save->crtc_enabled[i]) { tmp = RREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i]); if (!(tmp & AVIVO_D1GRPH_UPDATE_LOCK)) { tmp |= AVIVO_D1GRPH_UPDATE_LOCK; WREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i], tmp); } tmp = RREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i]); if (!(tmp & 1)) { tmp |= 1; WREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i], tmp); } } } } void rv515_mc_resume(struct radeon_device *rdev, struct rv515_mc_save *save) { u32 tmp, frame_count; int i, j; /* update crtc base addresses */ for (i = 0; i < rdev->num_crtc; i++) { if (rdev->family >= CHIP_RV770) { if (i == 0) { WREG32(R700_D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(rdev->mc.vram_start)); WREG32(R700_D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(rdev->mc.vram_start)); } else { WREG32(R700_D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(rdev->mc.vram_start)); WREG32(R700_D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(rdev->mc.vram_start)); } } WREG32(R_006110_D1GRPH_PRIMARY_SURFACE_ADDRESS + crtc_offsets[i], (u32)rdev->mc.vram_start); WREG32(R_006118_D1GRPH_SECONDARY_SURFACE_ADDRESS + crtc_offsets[i], (u32)rdev->mc.vram_start); } WREG32(R_000310_VGA_MEMORY_BASE_ADDRESS, (u32)rdev->mc.vram_start); /* unlock regs and wait for update */ for (i = 0; i < rdev->num_crtc; i++) { if (save->crtc_enabled[i]) { tmp = RREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + crtc_offsets[i]); if ((tmp & 0x7) != 3) { tmp &= ~0x7; tmp |= 0x3; WREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + crtc_offsets[i], tmp); } tmp = RREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i]); if (tmp & AVIVO_D1GRPH_UPDATE_LOCK) { tmp &= ~AVIVO_D1GRPH_UPDATE_LOCK; WREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i], tmp); } tmp = RREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i]); if (tmp & 1) { tmp &= ~1; WREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i], tmp); } for (j = 0; j < rdev->usec_timeout; j++) { tmp = RREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i]); if ((tmp & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING) == 0) break; udelay(1); } } } if (rdev->family >= CHIP_R600) { /* unblackout the MC */ if (rdev->family >= CHIP_RV770) tmp = RREG32(R700_MC_CITF_CNTL); else tmp = RREG32(R600_CITF_CNTL); tmp &= ~R600_BLACKOUT_MASK; if (rdev->family >= CHIP_RV770) WREG32(R700_MC_CITF_CNTL, tmp); else WREG32(R600_CITF_CNTL, tmp); /* allow CPU access */ WREG32(R600_BIF_FB_EN, R600_FB_READ_EN | R600_FB_WRITE_EN); } for (i = 0; i < rdev->num_crtc; i++) { if (save->crtc_enabled[i]) { tmp = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]); tmp &= ~AVIVO_CRTC_DISP_READ_REQUEST_DISABLE; WREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i], tmp); /* wait for the next frame */ frame_count = radeon_get_vblank_counter(rdev, i); for (j = 0; j < rdev->usec_timeout; j++) { if (radeon_get_vblank_counter(rdev, i) != frame_count) break; udelay(1); } } } /* Unlock vga access */ WREG32(R_000328_VGA_HDP_CONTROL, save->vga_hdp_control); mdelay(1); WREG32(R_000300_VGA_RENDER_CONTROL, save->vga_render_control); } static void rv515_mc_program(struct radeon_device *rdev) { struct rv515_mc_save save; /* Stops all mc clients */ rv515_mc_stop(rdev, &save); /* Wait for mc idle */ if (rv515_mc_wait_for_idle(rdev)) dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n"); /* Write VRAM size in case we are limiting it */ WREG32(R_0000F8_CONFIG_MEMSIZE, rdev->mc.real_vram_size); /* Program MC, should be a 32bits limited address space */ WREG32_MC(R_000001_MC_FB_LOCATION, S_000001_MC_FB_START(rdev->mc.vram_start >> 16) | S_000001_MC_FB_TOP(rdev->mc.vram_end >> 16)); WREG32(R_000134_HDP_FB_LOCATION, S_000134_HDP_FB_START(rdev->mc.vram_start >> 16)); if (rdev->flags & RADEON_IS_AGP) { WREG32_MC(R_000002_MC_AGP_LOCATION, S_000002_MC_AGP_START(rdev->mc.gtt_start >> 16) | S_000002_MC_AGP_TOP(rdev->mc.gtt_end >> 16)); WREG32_MC(R_000003_MC_AGP_BASE, lower_32_bits(rdev->mc.agp_base)); WREG32_MC(R_000004_MC_AGP_BASE_2, S_000004_AGP_BASE_ADDR_2(upper_32_bits(rdev->mc.agp_base))); } else { WREG32_MC(R_000002_MC_AGP_LOCATION, 0xFFFFFFFF); WREG32_MC(R_000003_MC_AGP_BASE, 0); WREG32_MC(R_000004_MC_AGP_BASE_2, 0); } rv515_mc_resume(rdev, &save); } void rv515_clock_startup(struct radeon_device *rdev) { if (radeon_dynclks != -1 && radeon_dynclks) radeon_atom_set_clock_gating(rdev, 1); /* We need to force on some of the block */ WREG32_PLL(R_00000F_CP_DYN_CNTL, RREG32_PLL(R_00000F_CP_DYN_CNTL) | S_00000F_CP_FORCEON(1)); WREG32_PLL(R_000011_E2_DYN_CNTL, RREG32_PLL(R_000011_E2_DYN_CNTL) | S_000011_E2_FORCEON(1)); WREG32_PLL(R_000013_IDCT_DYN_CNTL, RREG32_PLL(R_000013_IDCT_DYN_CNTL) | S_000013_IDCT_FORCEON(1)); } static int rv515_startup(struct radeon_device *rdev) { int r; rv515_mc_program(rdev); /* Resume clock */ rv515_clock_startup(rdev); /* Initialize GPU configuration (# pipes, ...) */ rv515_gpu_init(rdev); /* Initialize GART (initialize after TTM so we can allocate * memory through TTM but finalize after TTM) */ if (rdev->flags & RADEON_IS_PCIE) { r = rv370_pcie_gart_enable(rdev); if (r) return r; } /* allocate wb buffer */ r = radeon_wb_init(rdev); if (r) return r; r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX); if (r) { dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r); return r; } /* Enable IRQ */ if (!rdev->irq.installed) { r = radeon_irq_kms_init(rdev); if (r) return r; } rs600_irq_set(rdev); rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL); /* 1M ring buffer */ r = r100_cp_init(rdev, 1024 * 1024); if (r) { dev_err(rdev->dev, "failed initializing CP (%d).\n", r); return r; } r = radeon_ib_pool_init(rdev); if (r) { dev_err(rdev->dev, "IB initialization failed (%d).\n", r); return r; } return 0; } void rv515_set_safe_registers(struct radeon_device *rdev) { rdev->config.r300.reg_safe_bm = rv515_reg_safe_bm; rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(rv515_reg_safe_bm); } int rv515_init(struct radeon_device *rdev) { int r; /* Initialize scratch registers */ radeon_scratch_init(rdev); /* Initialize surface registers */ radeon_surface_init(rdev); /* TODO: disable VGA need to use VGA request */ /* restore some register to sane defaults */ r100_restore_sanity(rdev); /* BIOS*/ if (!radeon_get_bios(rdev)) { if (ASIC_IS_AVIVO(rdev)) return -EINVAL; } if (rdev->is_atom_bios) { r = radeon_atombios_init(rdev); if (r) return r; } else { dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n"); return -EINVAL; } /* Reset gpu before posting otherwise ATOM will enter infinite loop */ if (radeon_asic_reset(rdev)) { dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n", RREG32(R_000E40_RBBM_STATUS), RREG32(R_0007C0_CP_STAT)); } /* check if cards are posted or not */ if (radeon_boot_test_post_card(rdev) == false) return -EINVAL; /* Initialize clocks */ radeon_get_clock_info(rdev->ddev); /* initialize AGP */ if (rdev->flags & RADEON_IS_AGP) { r = radeon_agp_init(rdev); if (r) { radeon_agp_disable(rdev); } } /* initialize memory controller */ rv515_mc_init(rdev); rv515_debugfs(rdev); /* Fence driver */ r = radeon_fence_driver_init(rdev); if (r) return r; /* Memory manager */ r = radeon_bo_init(rdev); if (r) return r; r = rv370_pcie_gart_init(rdev); if (r) return r; rv515_set_safe_registers(rdev); /* Initialize power management */ radeon_pm_init(rdev); rdev->accel_working = true; r = rv515_startup(rdev); if (r) { /* Somethings want wront with the accel init stop accel */ dev_err(rdev->dev, "Disabling GPU acceleration\n"); rdev->accel_working = false; } return 0; } void atom_rv515_force_tv_scaler(struct radeon_device *rdev, struct radeon_crtc *crtc) { int index_reg = 0x6578 + crtc->crtc_offset; int data_reg = 0x657c + crtc->crtc_offset; WREG32(0x659C + crtc->crtc_offset, 0x0); WREG32(0x6594 + crtc->crtc_offset, 0x705); WREG32(0x65A4 + crtc->crtc_offset, 0x10001); WREG32(0x65D8 + crtc->crtc_offset, 0x0); WREG32(0x65B0 + crtc->crtc_offset, 0x0); WREG32(0x65C0 + crtc->crtc_offset, 0x0); WREG32(0x65D4 + crtc->crtc_offset, 0x0); WREG32(index_reg, 0x0); WREG32(data_reg, 0x841880A8); WREG32(index_reg, 0x1); WREG32(data_reg, 0x84208680); WREG32(index_reg, 0x2); WREG32(data_reg, 0xBFF880B0); WREG32(index_reg, 0x100); WREG32(data_reg, 0x83D88088); WREG32(index_reg, 0x101); WREG32(data_reg, 0x84608680); WREG32(index_reg, 0x102); WREG32(data_reg, 0xBFF080D0); WREG32(index_reg, 0x200); WREG32(data_reg, 0x83988068); WREG32(index_reg, 0x201); WREG32(data_reg, 0x84A08680); WREG32(index_reg, 0x202); WREG32(data_reg, 0xBFF080F8); WREG32(index_reg, 0x300); WREG32(data_reg, 0x83588058); WREG32(index_reg, 0x301); WREG32(data_reg, 0x84E08660); WREG32(index_reg, 0x302); WREG32(data_reg, 0xBFF88120); WREG32(index_reg, 0x400); WREG32(data_reg, 0x83188040); WREG32(index_reg, 0x401); WREG32(data_reg, 0x85008660); WREG32(index_reg, 0x402); WREG32(data_reg, 0xBFF88150); WREG32(index_reg, 0x500); WREG32(data_reg, 0x82D88030); WREG32(index_reg, 0x501); WREG32(data_reg, 0x85408640); WREG32(index_reg, 0x502); WREG32(data_reg, 0xBFF88180); WREG32(index_reg, 0x600); WREG32(data_reg, 0x82A08018); WREG32(index_reg, 0x601); WREG32(data_reg, 0x85808620); WREG32(index_reg, 0x602); WREG32(data_reg, 0xBFF081B8); WREG32(index_reg, 0x700); WREG32(data_reg, 0x82608010); WREG32(index_reg, 0x701); WREG32(data_reg, 0x85A08600); WREG32(index_reg, 0x702); WREG32(data_reg, 0x800081F0); WREG32(index_reg, 0x800); WREG32(data_reg, 0x8228BFF8); WREG32(index_reg, 0x801); WREG32(data_reg, 0x85E085E0); WREG32(index_reg, 0x802); WREG32(data_reg, 0xBFF88228); WREG32(index_reg, 0x10000); WREG32(data_reg, 0x82A8BF00); WREG32(index_reg, 0x10001); WREG32(data_reg, 0x82A08CC0); WREG32(index_reg, 0x10002); WREG32(data_reg, 0x8008BEF8); WREG32(index_reg, 0x10100); WREG32(data_reg, 0x81F0BF28); WREG32(index_reg, 0x10101); WREG32(data_reg, 0x83608CA0); WREG32(index_reg, 0x10102); WREG32(data_reg, 0x8018BED0); WREG32(index_reg, 0x10200); WREG32(data_reg, 0x8148BF38); WREG32(index_reg, 0x10201); WREG32(data_reg, 0x84408C80); WREG32(index_reg, 0x10202); WREG32(data_reg, 0x8008BEB8); WREG32(index_reg, 0x10300); WREG32(data_reg, 0x80B0BF78); WREG32(index_reg, 0x10301); WREG32(data_reg, 0x85008C20); WREG32(index_reg, 0x10302); WREG32(data_reg, 0x8020BEA0); WREG32(index_reg, 0x10400); WREG32(data_reg, 0x8028BF90); WREG32(index_reg, 0x10401); WREG32(data_reg, 0x85E08BC0); WREG32(index_reg, 0x10402); WREG32(data_reg, 0x8018BE90); WREG32(index_reg, 0x10500); WREG32(data_reg, 0xBFB8BFB0); WREG32(index_reg, 0x10501); WREG32(data_reg, 0x86C08B40); WREG32(index_reg, 0x10502); WREG32(data_reg, 0x8010BE90); WREG32(index_reg, 0x10600); WREG32(data_reg, 0xBF58BFC8); WREG32(index_reg, 0x10601); WREG32(data_reg, 0x87A08AA0); WREG32(index_reg, 0x10602); WREG32(data_reg, 0x8010BE98); WREG32(index_reg, 0x10700); WREG32(data_reg, 0xBF10BFF0); WREG32(index_reg, 0x10701); WREG32(data_reg, 0x886089E0); WREG32(index_reg, 0x10702); WREG32(data_reg, 0x8018BEB0); WREG32(index_reg, 0x10800); WREG32(data_reg, 0xBED8BFE8); WREG32(index_reg, 0x10801); WREG32(data_reg, 0x89408940); WREG32(index_reg, 0x10802); WREG32(data_reg, 0xBFE8BED8); WREG32(index_reg, 0x20000); WREG32(data_reg, 0x80008000); WREG32(index_reg, 0x20001); WREG32(data_reg, 0x90008000); WREG32(index_reg, 0x20002); WREG32(data_reg, 0x80008000); WREG32(index_reg, 0x20003); WREG32(data_reg, 0x80008000); WREG32(index_reg, 0x20100); WREG32(data_reg, 0x80108000); WREG32(index_reg, 0x20101); WREG32(data_reg, 0x8FE0BF70); WREG32(index_reg, 0x20102); WREG32(data_reg, 0xBFE880C0); WREG32(index_reg, 0x20103); WREG32(data_reg, 0x80008000); WREG32(index_reg, 0x20200); WREG32(data_reg, 0x8018BFF8); WREG32(index_reg, 0x20201); WREG32(data_reg, 0x8F80BF08); WREG32(index_reg, 0x20202); WREG32(data_reg, 0xBFD081A0); WREG32(index_reg, 0x20203); WREG32(data_reg, 0xBFF88000); WREG32(index_reg, 0x20300); WREG32(data_reg, 0x80188000); WREG32(index_reg, 0x20301); WREG32(data_reg, 0x8EE0BEC0); WREG32(index_reg, 0x20302); WREG32(data_reg, 0xBFB082A0); WREG32(index_reg, 0x20303); WREG32(data_reg, 0x80008000); WREG32(index_reg, 0x20400); WREG32(data_reg, 0x80188000); WREG32(index_reg, 0x20401); WREG32(data_reg, 0x8E00BEA0); WREG32(index_reg, 0x20402); WREG32(data_reg, 0xBF8883C0); WREG32(index_reg, 0x20403); WREG32(data_reg, 0x80008000); WREG32(index_reg, 0x20500); WREG32(data_reg, 0x80188000); WREG32(index_reg, 0x20501); WREG32(data_reg, 0x8D00BE90); WREG32(index_reg, 0x20502); WREG32(data_reg, 0xBF588500); WREG32(index_reg, 0x20503); WREG32(data_reg, 0x80008008); WREG32(index_reg, 0x20600); WREG32(data_reg, 0x80188000); WREG32(index_reg, 0x20601); WREG32(data_reg, 0x8BC0BE98); WREG32(index_reg, 0x20602); WREG32(data_reg, 0xBF308660); WREG32(index_reg, 0x20603); WREG32(data_reg, 0x80008008); WREG32(index_reg, 0x20700); WREG32(data_reg, 0x80108000); WREG32(index_reg, 0x20701); WREG32(data_reg, 0x8A80BEB0); WREG32(index_reg, 0x20702); WREG32(data_reg, 0xBF0087C0); WREG32(index_reg, 0x20703); WREG32(data_reg, 0x80008008); WREG32(index_reg, 0x20800); WREG32(data_reg, 0x80108000); WREG32(index_reg, 0x20801); WREG32(data_reg, 0x8920BED0); WREG32(index_reg, 0x20802); WREG32(data_reg, 0xBED08920); WREG32(index_reg, 0x20803); WREG32(data_reg, 0x80008010); WREG32(index_reg, 0x30000); WREG32(data_reg, 0x90008000); WREG32(index_reg, 0x30001); WREG32(data_reg, 0x80008000); WREG32(index_reg, 0x30100); WREG32(data_reg, 0x8FE0BF90); WREG32(index_reg, 0x30101); WREG32(data_reg, 0xBFF880A0); WREG32(index_reg, 0x30200); WREG32(data_reg, 0x8F60BF40); WREG32(index_reg, 0x30201); WREG32(data_reg, 0xBFE88180); WREG32(index_reg, 0x30300); WREG32(data_reg, 0x8EC0BF00); WREG32(index_reg, 0x30301); WREG32(data_reg, 0xBFC88280); WREG32(index_reg, 0x30400); WREG32(data_reg, 0x8DE0BEE0); WREG32(index_reg, 0x30401); WREG32(data_reg, 0xBFA083A0); WREG32(index_reg, 0x30500); WREG32(data_reg, 0x8CE0BED0); WREG32(index_reg, 0x30501); WREG32(data_reg, 0xBF7884E0); WREG32(index_reg, 0x30600); WREG32(data_reg, 0x8BA0BED8); WREG32(index_reg, 0x30601); WREG32(data_reg, 0xBF508640); WREG32(index_reg, 0x30700); WREG32(data_reg, 0x8A60BEE8); WREG32(index_reg, 0x30701); WREG32(data_reg, 0xBF2087A0); WREG32(index_reg, 0x30800); WREG32(data_reg, 0x8900BF00); WREG32(index_reg, 0x30801); WREG32(data_reg, 0xBF008900); } struct rv515_watermark { u32 lb_request_fifo_depth; fixed20_12 num_line_pair; fixed20_12 estimated_width; fixed20_12 worst_case_latency; fixed20_12 consumption_rate; fixed20_12 active_time; fixed20_12 dbpp; fixed20_12 priority_mark_max; fixed20_12 priority_mark; fixed20_12 sclk; }; static void rv515_crtc_bandwidth_compute(struct radeon_device *rdev, struct radeon_crtc *crtc, struct rv515_watermark *wm, bool low) { struct drm_display_mode *mode = &crtc->base.mode; fixed20_12 a, b, c; fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width; fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency; fixed20_12 sclk; u32 selected_sclk; if (!crtc->base.enabled) { /* FIXME: wouldn't it better to set priority mark to maximum */ wm->lb_request_fifo_depth = 4; return; } /* rv6xx, rv7xx */ if ((rdev->family >= CHIP_RV610) && (rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) selected_sclk = radeon_dpm_get_sclk(rdev, low); else selected_sclk = rdev->pm.current_sclk; /* sclk in Mhz */ a.full = dfixed_const(100); sclk.full = dfixed_const(selected_sclk); sclk.full = dfixed_div(sclk, a); if (crtc->vsc.full > dfixed_const(2)) wm->num_line_pair.full = dfixed_const(2); else wm->num_line_pair.full = dfixed_const(1); b.full = dfixed_const(mode->crtc_hdisplay); c.full = dfixed_const(256); a.full = dfixed_div(b, c); request_fifo_depth.full = dfixed_mul(a, wm->num_line_pair); request_fifo_depth.full = dfixed_ceil(request_fifo_depth); if (a.full < dfixed_const(4)) { wm->lb_request_fifo_depth = 4; } else { wm->lb_request_fifo_depth = dfixed_trunc(request_fifo_depth); } /* Determine consumption rate * pclk = pixel clock period(ns) = 1000 / (mode.clock / 1000) * vtaps = number of vertical taps, * vsc = vertical scaling ratio, defined as source/destination * hsc = horizontal scaling ration, defined as source/destination */ a.full = dfixed_const(mode->clock); b.full = dfixed_const(1000); a.full = dfixed_div(a, b); pclk.full = dfixed_div(b, a); if (crtc->rmx_type != RMX_OFF) { b.full = dfixed_const(2); if (crtc->vsc.full > b.full) b.full = crtc->vsc.full; b.full = dfixed_mul(b, crtc->hsc); c.full = dfixed_const(2); b.full = dfixed_div(b, c); consumption_time.full = dfixed_div(pclk, b); } else { consumption_time.full = pclk.full; } a.full = dfixed_const(1); wm->consumption_rate.full = dfixed_div(a, consumption_time); /* Determine line time * LineTime = total time for one line of displayhtotal * LineTime = total number of horizontal pixels * pclk = pixel clock period(ns) */ a.full = dfixed_const(crtc->base.mode.crtc_htotal); line_time.full = dfixed_mul(a, pclk); /* Determine active time * ActiveTime = time of active region of display within one line, * hactive = total number of horizontal active pixels * htotal = total number of horizontal pixels */ a.full = dfixed_const(crtc->base.mode.crtc_htotal); b.full = dfixed_const(crtc->base.mode.crtc_hdisplay); wm->active_time.full = dfixed_mul(line_time, b); wm->active_time.full = dfixed_div(wm->active_time, a); /* Determine chunk time * ChunkTime = the time it takes the DCP to send one chunk of data * to the LB which consists of pipeline delay and inter chunk gap * sclk = system clock(Mhz) */ a.full = dfixed_const(600 * 1000); chunk_time.full = dfixed_div(a, sclk); read_delay_latency.full = dfixed_const(1000); /* Determine the worst case latency * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines) * WorstCaseLatency = worst case time from urgent to when the MC starts * to return data * READ_DELAY_IDLE_MAX = constant of 1us * ChunkTime = time it takes the DCP to send one chunk of data to the LB * which consists of pipeline delay and inter chunk gap */ if (dfixed_trunc(wm->num_line_pair) > 1) { a.full = dfixed_const(3); wm->worst_case_latency.full = dfixed_mul(a, chunk_time); wm->worst_case_latency.full += read_delay_latency.full; } else { wm->worst_case_latency.full = chunk_time.full + read_delay_latency.full; } /* Determine the tolerable latency * TolerableLatency = Any given request has only 1 line time * for the data to be returned * LBRequestFifoDepth = Number of chunk requests the LB can * put into the request FIFO for a display * LineTime = total time for one line of display * ChunkTime = the time it takes the DCP to send one chunk * of data to the LB which consists of * pipeline delay and inter chunk gap */ if ((2+wm->lb_request_fifo_depth) >= dfixed_trunc(request_fifo_depth)) { tolerable_latency.full = line_time.full; } else { tolerable_latency.full = dfixed_const(wm->lb_request_fifo_depth - 2); tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full; tolerable_latency.full = dfixed_mul(tolerable_latency, chunk_time); tolerable_latency.full = line_time.full - tolerable_latency.full; } /* We assume worst case 32bits (4 bytes) */ wm->dbpp.full = dfixed_const(2 * 16); /* Determine the maximum priority mark * width = viewport width in pixels */ a.full = dfixed_const(16); wm->priority_mark_max.full = dfixed_const(crtc->base.mode.crtc_hdisplay); wm->priority_mark_max.full = dfixed_div(wm->priority_mark_max, a); wm->priority_mark_max.full = dfixed_ceil(wm->priority_mark_max); /* Determine estimated width */ estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full; estimated_width.full = dfixed_div(estimated_width, consumption_time); if (dfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) { wm->priority_mark.full = wm->priority_mark_max.full; } else { a.full = dfixed_const(16); wm->priority_mark.full = dfixed_div(estimated_width, a); wm->priority_mark.full = dfixed_ceil(wm->priority_mark); wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full; } } static void rv515_compute_mode_priority(struct radeon_device *rdev, struct rv515_watermark *wm0, struct rv515_watermark *wm1, struct drm_display_mode *mode0, struct drm_display_mode *mode1, u32 *d1mode_priority_a_cnt, u32 *d2mode_priority_a_cnt) { fixed20_12 priority_mark02, priority_mark12, fill_rate; fixed20_12 a, b; *d1mode_priority_a_cnt = MODE_PRIORITY_OFF; *d2mode_priority_a_cnt = MODE_PRIORITY_OFF; if (mode0 && mode1) { if (dfixed_trunc(wm0->dbpp) > 64) a.full = dfixed_div(wm0->dbpp, wm0->num_line_pair); else a.full = wm0->num_line_pair.full; if (dfixed_trunc(wm1->dbpp) > 64) b.full = dfixed_div(wm1->dbpp, wm1->num_line_pair); else b.full = wm1->num_line_pair.full; a.full += b.full; fill_rate.full = dfixed_div(wm0->sclk, a); if (wm0->consumption_rate.full > fill_rate.full) { b.full = wm0->consumption_rate.full - fill_rate.full; b.full = dfixed_mul(b, wm0->active_time); a.full = dfixed_const(16); b.full = dfixed_div(b, a); a.full = dfixed_mul(wm0->worst_case_latency, wm0->consumption_rate); priority_mark02.full = a.full + b.full; } else { a.full = dfixed_mul(wm0->worst_case_latency, wm0->consumption_rate); b.full = dfixed_const(16 * 1000); priority_mark02.full = dfixed_div(a, b); } if (wm1->consumption_rate.full > fill_rate.full) { b.full = wm1->consumption_rate.full - fill_rate.full; b.full = dfixed_mul(b, wm1->active_time); a.full = dfixed_const(16); b.full = dfixed_div(b, a); a.full = dfixed_mul(wm1->worst_case_latency, wm1->consumption_rate); priority_mark12.full = a.full + b.full; } else { a.full = dfixed_mul(wm1->worst_case_latency, wm1->consumption_rate); b.full = dfixed_const(16 * 1000); priority_mark12.full = dfixed_div(a, b); } if (wm0->priority_mark.full > priority_mark02.full) priority_mark02.full = wm0->priority_mark.full; if (wm0->priority_mark_max.full > priority_mark02.full) priority_mark02.full = wm0->priority_mark_max.full; if (wm1->priority_mark.full > priority_mark12.full) priority_mark12.full = wm1->priority_mark.full; if (wm1->priority_mark_max.full > priority_mark12.full) priority_mark12.full = wm1->priority_mark_max.full; *d1mode_priority_a_cnt = dfixed_trunc(priority_mark02); *d2mode_priority_a_cnt = dfixed_trunc(priority_mark12); if (rdev->disp_priority == 2) { *d1mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON; *d2mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON; } } else if (mode0) { if (dfixed_trunc(wm0->dbpp) > 64) a.full = dfixed_div(wm0->dbpp, wm0->num_line_pair); else a.full = wm0->num_line_pair.full; fill_rate.full = dfixed_div(wm0->sclk, a); if (wm0->consumption_rate.full > fill_rate.full) { b.full = wm0->consumption_rate.full - fill_rate.full; b.full = dfixed_mul(b, wm0->active_time); a.full = dfixed_const(16); b.full = dfixed_div(b, a); a.full = dfixed_mul(wm0->worst_case_latency, wm0->consumption_rate); priority_mark02.full = a.full + b.full; } else { a.full = dfixed_mul(wm0->worst_case_latency, wm0->consumption_rate); b.full = dfixed_const(16); priority_mark02.full = dfixed_div(a, b); } if (wm0->priority_mark.full > priority_mark02.full) priority_mark02.full = wm0->priority_mark.full; if (wm0->priority_mark_max.full > priority_mark02.full) priority_mark02.full = wm0->priority_mark_max.full; *d1mode_priority_a_cnt = dfixed_trunc(priority_mark02); if (rdev->disp_priority == 2) *d1mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON; } else if (mode1) { if (dfixed_trunc(wm1->dbpp) > 64) a.full = dfixed_div(wm1->dbpp, wm1->num_line_pair); else a.full = wm1->num_line_pair.full; fill_rate.full = dfixed_div(wm1->sclk, a); if (wm1->consumption_rate.full > fill_rate.full) { b.full = wm1->consumption_rate.full - fill_rate.full; b.full = dfixed_mul(b, wm1->active_time); a.full = dfixed_const(16); b.full = dfixed_div(b, a); a.full = dfixed_mul(wm1->worst_case_latency, wm1->consumption_rate); priority_mark12.full = a.full + b.full; } else { a.full = dfixed_mul(wm1->worst_case_latency, wm1->consumption_rate); b.full = dfixed_const(16 * 1000); priority_mark12.full = dfixed_div(a, b); } if (wm1->priority_mark.full > priority_mark12.full) priority_mark12.full = wm1->priority_mark.full; if (wm1->priority_mark_max.full > priority_mark12.full) priority_mark12.full = wm1->priority_mark_max.full; *d2mode_priority_a_cnt = dfixed_trunc(priority_mark12); if (rdev->disp_priority == 2) *d2mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON; } } void rv515_bandwidth_avivo_update(struct radeon_device *rdev) { struct drm_display_mode *mode0 = NULL; struct drm_display_mode *mode1 = NULL; struct rv515_watermark wm0_high, wm0_low; struct rv515_watermark wm1_high, wm1_low; u32 tmp; u32 d1mode_priority_a_cnt, d1mode_priority_b_cnt; u32 d2mode_priority_a_cnt, d2mode_priority_b_cnt; if (rdev->mode_info.crtcs[0]->base.enabled) mode0 = &rdev->mode_info.crtcs[0]->base.mode; if (rdev->mode_info.crtcs[1]->base.enabled) mode1 = &rdev->mode_info.crtcs[1]->base.mode; rs690_line_buffer_adjust(rdev, mode0, mode1); rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0_high, false); rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1_high, false); rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0_low, false); rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1_low, false); tmp = wm0_high.lb_request_fifo_depth; tmp |= wm1_high.lb_request_fifo_depth << 16; WREG32(LB_MAX_REQ_OUTSTANDING, tmp); rv515_compute_mode_priority(rdev, &wm0_high, &wm1_high, mode0, mode1, &d1mode_priority_a_cnt, &d2mode_priority_a_cnt); rv515_compute_mode_priority(rdev, &wm0_low, &wm1_low, mode0, mode1, &d1mode_priority_b_cnt, &d2mode_priority_b_cnt); WREG32(D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt); WREG32(D1MODE_PRIORITY_B_CNT, d1mode_priority_b_cnt); WREG32(D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt); WREG32(D2MODE_PRIORITY_B_CNT, d2mode_priority_b_cnt); } void rv515_bandwidth_update(struct radeon_device *rdev) { uint32_t tmp; struct drm_display_mode *mode0 = NULL; struct drm_display_mode *mode1 = NULL; if (!rdev->mode_info.mode_config_initialized) return; radeon_update_display_priority(rdev); if (rdev->mode_info.crtcs[0]->base.enabled) mode0 = &rdev->mode_info.crtcs[0]->base.mode; if (rdev->mode_info.crtcs[1]->base.enabled) mode1 = &rdev->mode_info.crtcs[1]->base.mode; /* * Set display0/1 priority up in the memory controller for * modes if the user specifies HIGH for displaypriority * option. */ if ((rdev->disp_priority == 2) && (rdev->family == CHIP_RV515)) { tmp = RREG32_MC(MC_MISC_LAT_TIMER); tmp &= ~MC_DISP1R_INIT_LAT_MASK; tmp &= ~MC_DISP0R_INIT_LAT_MASK; if (mode1) tmp |= (1 << MC_DISP1R_INIT_LAT_SHIFT); if (mode0) tmp |= (1 << MC_DISP0R_INIT_LAT_SHIFT); WREG32_MC(MC_MISC_LAT_TIMER, tmp); } rv515_bandwidth_avivo_update(rdev); }