Mercurial > hg > truffle
annotate src/os_gpu/linux_ptx/vm/gpu_linux.cpp @ 13705:ac5b0f31f7a2
Truffle API-change: FrameDescriptors are now stored in the RootNode in a final field instead of the CallTarget.
| author | Christian Humer <christian.humer@gmail.com> |
|---|---|
| date | Fri, 17 Jan 2014 17:06:08 +0100 |
| parents | 5465ba051280 |
| children |
| rev | line source |
|---|---|
| 10879 | 1 /* |
| 2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 #include "runtime/gpu.hpp" | |
| 26 #include "utilities/ostream.hpp" | |
| 27 | |
| 28 void gpu::probe_gpu() { | |
| 29 set_available(gpu::Linux::probe_gpu()); | |
| 30 if (TraceGPUInteraction) { | |
| 31 tty->print_cr("gpu_linux::probe_gpu(): %d", gpu::is_available()); | |
| 32 } | |
| 33 } | |
| 34 | |
| 35 /* | |
| 36 * Probe for CUDA device on PCI bus using /proc/bus/pci/devices. Do | |
| 37 * not rely on CUDA tool kit being installed. We will check if CUDA | |
| 38 * library is installed later. | |
| 39 */ | |
| 40 | |
| 41 static unsigned int nvidia_vendor_id = 0x10de; | |
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42 static unsigned int amd_vendor_id = 0x1002; |
| 10879 | 43 |
| 44 bool gpu::Linux::probe_gpu() { | |
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45 |
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46 /* |
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47 * The simulator only depends on shared libraries. |
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48 * That linkage is checked in a later step. |
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49 */ |
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50 if (UseHSAILSimulator) { |
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51 set_target_il_type(gpu::HSAIL); |
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Doug Simon <doug.simon@oracle.com>
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52 if (TraceGPUInteraction) { |
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53 tty->print_cr("Setup HSAIL Simulator"); |
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parents:
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54 } |
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55 return true; |
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parents:
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56 } |
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more HSAIL support in the C++ layer for executing HSAIL code on the simulator
Doug Simon <doug.simon@oracle.com>
parents:
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changeset
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57 |
| 10879 | 58 /* |
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Create runtime object based on GPUIL type newly added to gpu class; some code refactoring.
bharadwaj
parents:
11485
diff
changeset
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59 * Open /proc/bus/pci/devices to look for the first GPU device. For |
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4f69a5189e77
Create runtime object based on GPUIL type newly added to gpu class; some code refactoring.
bharadwaj
parents:
11485
diff
changeset
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60 * now, we will just find the first GPU device. Will need to revisit |
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4f69a5189e77
Create runtime object based on GPUIL type newly added to gpu class; some code refactoring.
bharadwaj
parents:
11485
diff
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61 * this to support execution on multiple GPU devices, if they exist. |
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Defer PTX on Mac probe to the CUDA driver initialization call
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62 */ |
| 10879 | 63 FILE *pci_devices = fopen("/proc/bus/pci/devices", "r"); |
| 64 char contents[4096]; | |
| 65 unsigned int bus_num_devfn_ign; | |
| 66 unsigned int vendor; | |
| 67 unsigned int device; | |
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bharadwaj
parents:
11485
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68 bool gpu_device_exists = false; |
| 10879 | 69 if (pci_devices == NULL) { |
| 70 tty->print_cr("*** Failed to open /proc/bus/pci/devices"); | |
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4f69a5189e77
Create runtime object based on GPUIL type newly added to gpu class; some code refactoring.
bharadwaj
parents:
11485
diff
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71 return gpu_device_exists; |
| 10879 | 72 } |
| 73 | |
| 74 while (fgets(contents, sizeof(contents)-1, pci_devices)) { | |
| 75 sscanf(contents, "%04x%04x%04x", &bus_num_devfn_ign, &vendor, &device); | |
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4f69a5189e77
Create runtime object based on GPUIL type newly added to gpu class; some code refactoring.
bharadwaj
parents:
11485
diff
changeset
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76 /* Break after finding the first GPU device. */ |
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49bb1bc983c6
Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
bharadwaj
parents:
11292
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77 if (vendor == nvidia_vendor_id) { |
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11606
4f69a5189e77
Create runtime object based on GPUIL type newly added to gpu class; some code refactoring.
bharadwaj
parents:
11485
diff
changeset
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78 gpu_device_exists = true; |
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4f69a5189e77
Create runtime object based on GPUIL type newly added to gpu class; some code refactoring.
bharadwaj
parents:
11485
diff
changeset
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79 set_target_il_type(gpu::PTX); |
| 10879 | 80 if (TraceGPUInteraction) { |
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11606
4f69a5189e77
Create runtime object based on GPUIL type newly added to gpu class; some code refactoring.
bharadwaj
parents:
11485
diff
changeset
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81 tty->print_cr("Found supported nVidia GPU device vendor : 0x%04x device 0x%04x", vendor, device); |
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4f69a5189e77
Create runtime object based on GPUIL type newly added to gpu class; some code refactoring.
bharadwaj
parents:
11485
diff
changeset
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82 } |
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4f69a5189e77
Create runtime object based on GPUIL type newly added to gpu class; some code refactoring.
bharadwaj
parents:
11485
diff
changeset
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83 break; |
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13114
5465ba051280
HSAIL: removed AMD GPU detection until a) clashing AMD CPU and GPU vendor ID issue is resolved and b) HSA port is more complete
Doug Simon <doug.simon@oracle.com>
parents:
12743
diff
changeset
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84 /* |
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5465ba051280
HSAIL: removed AMD GPU detection until a) clashing AMD CPU and GPU vendor ID issue is resolved and b) HSA port is more complete
Doug Simon <doug.simon@oracle.com>
parents:
12743
diff
changeset
|
85 * Remove AMD detection until we decide how to detect real HSA hardware. |
|
5465ba051280
HSAIL: removed AMD GPU detection until a) clashing AMD CPU and GPU vendor ID issue is resolved and b) HSA port is more complete
Doug Simon <doug.simon@oracle.com>
parents:
12743
diff
changeset
|
86 * In the current form this check does not work correctly on AMD CPU system with |
|
5465ba051280
HSAIL: removed AMD GPU detection until a) clashing AMD CPU and GPU vendor ID issue is resolved and b) HSA port is more complete
Doug Simon <doug.simon@oracle.com>
parents:
12743
diff
changeset
|
87 * Nvidia GPU. |
|
5465ba051280
HSAIL: removed AMD GPU detection until a) clashing AMD CPU and GPU vendor ID issue is resolved and b) HSA port is more complete
Doug Simon <doug.simon@oracle.com>
parents:
12743
diff
changeset
|
88 * |
|
5465ba051280
HSAIL: removed AMD GPU detection until a) clashing AMD CPU and GPU vendor ID issue is resolved and b) HSA port is more complete
Doug Simon <doug.simon@oracle.com>
parents:
12743
diff
changeset
|
89 * } else if (vendor == amd_vendor_id) { |
|
5465ba051280
HSAIL: removed AMD GPU detection until a) clashing AMD CPU and GPU vendor ID issue is resolved and b) HSA port is more complete
Doug Simon <doug.simon@oracle.com>
parents:
12743
diff
changeset
|
90 * gpu_device_exists = true; |
|
5465ba051280
HSAIL: removed AMD GPU detection until a) clashing AMD CPU and GPU vendor ID issue is resolved and b) HSA port is more complete
Doug Simon <doug.simon@oracle.com>
parents:
12743
diff
changeset
|
91 * set_target_il_type(gpu::HSAIL); |
|
5465ba051280
HSAIL: removed AMD GPU detection until a) clashing AMD CPU and GPU vendor ID issue is resolved and b) HSA port is more complete
Doug Simon <doug.simon@oracle.com>
parents:
12743
diff
changeset
|
92 * if (TraceGPUInteraction) { |
|
5465ba051280
HSAIL: removed AMD GPU detection until a) clashing AMD CPU and GPU vendor ID issue is resolved and b) HSA port is more complete
Doug Simon <doug.simon@oracle.com>
parents:
12743
diff
changeset
|
93 * tty->print_cr("Found supported AMD GPU device vendor : 0x%04x device 0x%04x", vendor, device); |
|
5465ba051280
HSAIL: removed AMD GPU detection until a) clashing AMD CPU and GPU vendor ID issue is resolved and b) HSA port is more complete
Doug Simon <doug.simon@oracle.com>
parents:
12743
diff
changeset
|
94 * } |
|
5465ba051280
HSAIL: removed AMD GPU detection until a) clashing AMD CPU and GPU vendor ID issue is resolved and b) HSA port is more complete
Doug Simon <doug.simon@oracle.com>
parents:
12743
diff
changeset
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95 * break; |
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5465ba051280
HSAIL: removed AMD GPU detection until a) clashing AMD CPU and GPU vendor ID issue is resolved and b) HSA port is more complete
Doug Simon <doug.simon@oracle.com>
parents:
12743
diff
changeset
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96 */ |
| 10879 | 97 } |
| 98 } | |
| 99 | |
| 100 // Close file pointer. | |
| 101 fclose(pci_devices); | |
| 102 | |
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4f69a5189e77
Create runtime object based on GPUIL type newly added to gpu class; some code refactoring.
bharadwaj
parents:
11485
diff
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103 return gpu_device_exists; |
| 10879 | 104 } |