/* * 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
*/
int rs690_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(R_000090_MC_SYSTEM_STATUS); if (G_000090_MC_SYSTEM_IDLE(tmp)) return 0;
udelay(1);
} return -1;
}
staticvoid rs690_gpu_init(struct radeon_device *rdev)
{ /* FIXME: is this correct ? */
r420_pipes_init(rdev); if (rs690_mc_wait_for_idle(rdev)) {
pr_warn("Failed to wait MC idle while programming pipes. Bad things might happen.\n");
}
}
union igp_info { struct _ATOM_INTEGRATED_SYSTEM_INFO info; struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_v2;
};
void rs690_pm_info(struct radeon_device *rdev)
{ int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo); union igp_info *info;
uint16_t data_offset;
uint8_t frev, crev;
fixed20_12 tmp;
if (atom_parse_data_header(rdev->mode_info.atom_context, index, NULL,
&frev, &crev, &data_offset)) {
info = (union igp_info *)(rdev->mode_info.atom_context->bios + data_offset);
/* Get various system informations from bios */ switch (crev) { case 1:
tmp.full = dfixed_const(100);
rdev->pm.igp_sideport_mclk.full = dfixed_const(le32_to_cpu(info->info.ulBootUpMemoryClock));
rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp); if (le16_to_cpu(info->info.usK8MemoryClock))
rdev->pm.igp_system_mclk.full = dfixed_const(le16_to_cpu(info->info.usK8MemoryClock)); elseif (rdev->clock.default_mclk) {
rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk);
rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp);
} else
rdev->pm.igp_system_mclk.full = dfixed_const(400);
rdev->pm.igp_ht_link_clk.full = dfixed_const(le16_to_cpu(info->info.usFSBClock));
rdev->pm.igp_ht_link_width.full = dfixed_const(info->info.ucHTLinkWidth); break; case 2:
tmp.full = dfixed_const(100);
rdev->pm.igp_sideport_mclk.full = dfixed_const(le32_to_cpu(info->info_v2.ulBootUpSidePortClock));
rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp); if (le32_to_cpu(info->info_v2.ulBootUpUMAClock))
rdev->pm.igp_system_mclk.full = dfixed_const(le32_to_cpu(info->info_v2.ulBootUpUMAClock)); elseif (rdev->clock.default_mclk)
rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk); else
rdev->pm.igp_system_mclk.full = dfixed_const(66700);
rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp);
rdev->pm.igp_ht_link_clk.full = dfixed_const(le32_to_cpu(info->info_v2.ulHTLinkFreq));
rdev->pm.igp_ht_link_clk.full = dfixed_div(rdev->pm.igp_ht_link_clk, tmp);
rdev->pm.igp_ht_link_width.full = dfixed_const(le16_to_cpu(info->info_v2.usMinHTLinkWidth)); break; default: /* We assume the slower possible clock ie worst case */
rdev->pm.igp_sideport_mclk.full = dfixed_const(200);
rdev->pm.igp_system_mclk.full = dfixed_const(200);
rdev->pm.igp_ht_link_clk.full = dfixed_const(1000);
rdev->pm.igp_ht_link_width.full = dfixed_const(8);
DRM_ERROR("No integrated system info for your GPU, using safe default\n"); break;
}
} else { /* We assume the slower possible clock ie worst case */
rdev->pm.igp_sideport_mclk.full = dfixed_const(200);
rdev->pm.igp_system_mclk.full = dfixed_const(200);
rdev->pm.igp_ht_link_clk.full = dfixed_const(1000);
rdev->pm.igp_ht_link_width.full = dfixed_const(8);
DRM_ERROR("No integrated system info for your GPU, using safe default\n");
} /* Compute various bandwidth */ /* k8_bandwidth = (memory_clk / 2) * 2 * 8 * 0.5 = memory_clk * 4 */
tmp.full = dfixed_const(4);
rdev->pm.k8_bandwidth.full = dfixed_mul(rdev->pm.igp_system_mclk, tmp); /* ht_bandwidth = ht_clk * 2 * ht_width / 8 * 0.8 * = ht_clk * ht_width / 5
*/
tmp.full = dfixed_const(5);
rdev->pm.ht_bandwidth.full = dfixed_mul(rdev->pm.igp_ht_link_clk,
rdev->pm.igp_ht_link_width);
rdev->pm.ht_bandwidth.full = dfixed_div(rdev->pm.ht_bandwidth, tmp); if (tmp.full < rdev->pm.max_bandwidth.full) { /* HT link is a limiting factor */
rdev->pm.max_bandwidth.full = tmp.full;
} /* sideport_bandwidth = (sideport_clk / 2) * 2 * 2 * 0.7 * = (sideport_clk * 14) / 10
*/
tmp.full = dfixed_const(14);
rdev->pm.sideport_bandwidth.full = dfixed_mul(rdev->pm.igp_sideport_mclk, tmp);
tmp.full = dfixed_const(10);
rdev->pm.sideport_bandwidth.full = dfixed_div(rdev->pm.sideport_bandwidth, tmp);
}
rs400_gart_adjust_size(rdev);
rdev->mc.vram_is_ddr = true;
rdev->mc.vram_width = 128;
rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
rdev->mc.visible_vram_size = rdev->mc.aper_size;
base = RREG32_MC(R_000100_MCCFG_FB_LOCATION);
base = G_000100_MC_FB_START(base) << 16;
rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev); /* Some boards seem to be configured for 128MB of sideport memory, * but really only have 64MB. Just skip the sideport and use * UMA memory.
*/ if (rdev->mc.igp_sideport_enabled &&
(rdev->mc.real_vram_size == (384 * 1024 * 1024))) {
base += 128 * 1024 * 1024;
rdev->mc.real_vram_size -= 128 * 1024 * 1024;
rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
}
/* Use K8 direct mapping for fast fb access. */
rdev->fastfb_working = false;
h_addr = G_00005F_K8_ADDR_EXT(RREG32_MC(R_00005F_MC_MISC_UMA_CNTL));
l_addr = RREG32_MC(R_00001E_K8_FB_LOCATION);
k8_addr = ((unsignedlonglong)h_addr) << 32 | l_addr; #ifdefined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE) if (k8_addr + rdev->mc.visible_vram_size < 0x100000000ULL) #endif
{ /* FastFB shall be used with UMA memory. Here it is simply disabled when sideport * memory is present.
*/ if (!rdev->mc.igp_sideport_enabled && radeon_fastfb == 1) {
DRM_INFO("Direct mapping: aper base at 0x%llx, replaced by direct mapping base 0x%llx.\n",
(unsignedlonglong)rdev->mc.aper_base, k8_addr);
rdev->mc.aper_base = (resource_size_t)k8_addr;
rdev->fastfb_working = true;
}
}
/* Guess line buffer size to be 8192 pixels */
u32 lb_size = 8192;
/* * Line Buffer Setup * There is a single line buffer shared by both display controllers. * R_006520_DC_LB_MEMORY_SPLIT controls how that line buffer is shared between * the display controllers. The paritioning can either be done * manually or via one of four preset allocations specified in bits 1:0: * 0 - line buffer is divided in half and shared between crtc * 1 - D1 gets 3/4 of the line buffer, D2 gets 1/4 * 2 - D1 gets the whole buffer * 3 - D1 gets 1/4 of the line buffer, D2 gets 3/4 * Setting bit 2 of R_006520_DC_LB_MEMORY_SPLIT controls switches to manual * allocation mode. In manual allocation mode, D1 always starts at 0, * D1 end/2 is specified in bits 14:4; D2 allocation follows D1.
*/
tmp = RREG32(R_006520_DC_LB_MEMORY_SPLIT) & C_006520_DC_LB_MEMORY_SPLIT;
tmp &= ~C_006520_DC_LB_MEMORY_SPLIT_MODE; /* auto */ if (mode1 && mode2) { if (mode1->hdisplay > mode2->hdisplay) { if (mode1->hdisplay > 2560)
tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_3Q_D2_1Q; else
tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
} elseif (mode2->hdisplay > mode1->hdisplay) { if (mode2->hdisplay > 2560)
tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q; else
tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
} else
tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
} elseif (mode1) {
tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_ONLY;
} elseif (mode2) {
tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
}
WREG32(R_006520_DC_LB_MEMORY_SPLIT, tmp);
/* Save number of lines the linebuffer leads before the scanout */ if (mode1)
rdev->mode_info.crtcs[0]->lb_vblank_lead_lines = DIV_ROUND_UP(lb_size, mode1->crtc_hdisplay);
if (mode2)
rdev->mode_info.crtcs[1]->lb_vblank_lead_lines = DIV_ROUND_UP(lb_size, mode2->crtc_hdisplay);
}
/* 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);
/* Maximun bandwidth is the minimun bandwidth of all component */
max_bandwidth = core_bandwidth; if (rdev->mc.igp_sideport_enabled) { if (max_bandwidth.full > rdev->pm.sideport_bandwidth.full &&
rdev->pm.sideport_bandwidth.full)
max_bandwidth = rdev->pm.sideport_bandwidth;
read_delay_latency.full = dfixed_const(370 * 800);
a.full = dfixed_const(1000);
b.full = dfixed_div(rdev->pm.igp_sideport_mclk, a);
read_delay_latency.full = dfixed_div(read_delay_latency, b);
read_delay_latency.full = dfixed_mul(read_delay_latency, a);
} else { if (max_bandwidth.full > rdev->pm.k8_bandwidth.full &&
rdev->pm.k8_bandwidth.full)
max_bandwidth = rdev->pm.k8_bandwidth; if (max_bandwidth.full > rdev->pm.ht_bandwidth.full &&
rdev->pm.ht_bandwidth.full)
max_bandwidth = rdev->pm.ht_bandwidth;
read_delay_latency.full = dfixed_const(5000);
}
/* sclk = system clocks(ns) = 1000 / max_bandwidth / 16 */
a.full = dfixed_const(16);
sclk.full = dfixed_mul(max_bandwidth, a);
a.full = dfixed_const(1000);
sclk.full = dfixed_div(a, sclk); /* 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(ns)
*/
a.full = dfixed_const(256 * 13);
chunk_time.full = dfixed_mul(sclk, a);
a.full = dfixed_const(10);
chunk_time.full = dfixed_div(chunk_time, a);
/* 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 {
a.full = dfixed_const(2);
wm->worst_case_latency.full = dfixed_mul(a, chunk_time);
wm->worst_case_latency.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(4 * 8);
/* 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);
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_RS690) || (rdev->family == CHIP_RS740))) {
tmp = RREG32_MC(R_000104_MC_INIT_MISC_LAT_TIMER);
tmp &= C_000104_MC_DISP0R_INIT_LAT;
tmp &= C_000104_MC_DISP1R_INIT_LAT; if (mode0)
tmp |= S_000104_MC_DISP0R_INIT_LAT(1); if (mode1)
tmp |= S_000104_MC_DISP1R_INIT_LAT(1);
WREG32_MC(R_000104_MC_INIT_MISC_LAT_TIMER, tmp);
}
rs690_line_buffer_adjust(rdev, mode0, mode1);
if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740))
WREG32(R_006C9C_DCP_CONTROL, 0); if ((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880))
WREG32(R_006C9C_DCP_CONTROL, 2);
/* Stops all mc clients */
rv515_mc_stop(rdev, &save);
/* Wait for mc idle */ if (rs690_mc_wait_for_idle(rdev))
dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n"); /* Program MC, should be a 32bits limited address space */
WREG32_MC(R_000100_MCCFG_FB_LOCATION,
S_000100_MC_FB_START(rdev->mc.vram_start >> 16) |
S_000100_MC_FB_TOP(rdev->mc.vram_end >> 16));
WREG32(R_000134_HDP_FB_LOCATION,
S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
rv515_mc_resume(rdev, &save);
}
staticint rs690_startup(struct radeon_device *rdev)
{ int r;
rs690_mc_program(rdev); /* Resume clock */
rv515_clock_startup(rdev); /* Initialize GPU configuration (# pipes, ...) */
rs690_gpu_init(rdev); /* Initialize GART (initialize after TTM so we can allocate
* memory through TTM but finalize after TTM) */
r = rs400_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;
}
r = radeon_audio_init(rdev); if (r) {
dev_err(rdev->dev, "failed initializing audio\n"); return r;
}
return 0;
}
int rs690_resume(struct radeon_device *rdev)
{ int r;
/* Make sur GART are not working */
rs400_gart_disable(rdev); /* Resume clock before doing reset */
rv515_clock_startup(rdev); /* 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));
} /* post */
atom_asic_init(rdev->mode_info.atom_context); /* Resume clock after posting */
rv515_clock_startup(rdev); /* Initialize surface registers */
radeon_surface_init(rdev);
rdev->accel_working = true;
r = rs690_startup(rdev); if (r) {
rdev->accel_working = false;
} return r;
}
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