[igt-dev] [PATCH i-g-t] debugger: Remove shader debugger
Arkadiusz Hiler
arkadiusz.hiler at intel.com
Mon Apr 8 12:26:46 UTC 2019
Compilation support was dropped in January 2019, since then it's just a
dead code in the repo and no one seems to be missing it.
Anyway, it can always be reintroduced from the chasms of git history.
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: Petri Latvala <petri.latvala at intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler at intel.com>
---
README.md | 10 -
debugger/.gitignore | 2 -
debugger/debug_rdata.c | 142 ------
debugger/eudb.c | 602 -----------------------
debugger/system_routine/.gitignore | 10 -
debugger/system_routine/eviction_macro.c | 48 --
debugger/system_routine/pre_cpp.py | 126 -----
debugger/system_routine/sr.g4a | 277 -----------
debugger/system_routine/test.g4a | 64 ---
9 files changed, 1281 deletions(-)
delete mode 100644 debugger/.gitignore
delete mode 100644 debugger/debug_rdata.c
delete mode 100644 debugger/eudb.c
delete mode 100644 debugger/system_routine/.gitignore
delete mode 100644 debugger/system_routine/eviction_macro.c
delete mode 100755 debugger/system_routine/pre_cpp.py
delete mode 100644 debugger/system_routine/sr.g4a
delete mode 100644 debugger/system_routine/test.g4a
diff --git a/README.md b/README.md
index 2d583095..9be840c8 100644
--- a/README.md
+++ b/README.md
@@ -107,16 +107,6 @@ people debugging the driver.
These tools generally must be run as root, except for the ones that just
decode dumps.
-**debugger/**
-
-This tool is to be used to do shader debugging. It acts like a
-debug server accepting connections from debug clients such as
-mesa. The connections is made with unix domain sockets, and at some
-point it would be nice if this directory contained a library for
-initiating connections with debug clients..
-
-The debugger must be run as root: "sudo debugger/eudb"
-
**docs/**
Contains the automatically generated igt-gpu-tools libraries
diff --git a/debugger/.gitignore b/debugger/.gitignore
deleted file mode 100644
index 873cd273..00000000
--- a/debugger/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-debug_rdata
-eudb
diff --git a/debugger/debug_rdata.c b/debugger/debug_rdata.c
deleted file mode 100644
index 61d82d9e..00000000
--- a/debugger/debug_rdata.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * Copyright © 2011 Intel Corporation
- *
- * 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
- * THE AUTHORS OR COPYRIGHT HOLDERS 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:
- * Ben Widawsky <ben at bwidawsk.net>
- *
- */
-
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "intel_io.h"
-#include "intel_chipset.h"
-
-struct eu_rdata {
- union {
- struct {
- uint8_t sendc_dep : 1;
- uint8_t swh_dep : 1;
- uint8_t pwc_dep : 1;
- uint8_t n2_dep : 1;
- uint8_t n1_dep : 1;
- uint8_t n0_dep : 1;
- uint8_t flag1_dep : 1;
- uint8_t flag0_dep : 1;
- uint8_t indx_dep : 1;
- uint8_t mrf_dep : 1;
- uint8_t dst_dep : 1;
- uint8_t src2_dep : 1;
- uint8_t src1_dep : 1;
- uint8_t src0_dep : 1;
- uint8_t mp_dep_pin : 1;
- uint8_t sp_dep_pin : 1;
- uint8_t fftid : 8;
- uint8_t ffid : 4;
- uint8_t instruction_valid : 1;
- uint8_t thread_status : 3;
- };
- uint32_t dword;
- } ud0;
-
- union {
- struct {
- uint8_t mrf_addr : 4;
- uint8_t dst_addr : 7;
- uint8_t src2_addr : 7;
- uint8_t src1_addr : 7;
- uint8_t src0_addr : 7;
- };
- uint32_t dword;
- } ud1;
-
- union {
- struct {
- uint16_t exip : 12;
- uint8_t opcode : 7;
- uint8_t pwc : 8;
- uint8_t instruction_valid : 1;
- uint8_t mbz : 4;
- };
- uint32_t dword;
- } ud2;
-};
-
-const char *thread_status[] =
- {"INVALID", "invalid/no thread", "standby (dependency)", "INVALID", "Executing",
- "INVALID" , "INVALID" , "INVALID"};
-
-static struct eu_rdata
-collect_rdata(int eu, int tid) {
- struct eu_rdata rdata;
-
- intel_register_write(0x7800, eu << 16 | (3 * tid) << 8);
- rdata.ud0.dword = intel_register_read(0x7840);
-
- intel_register_write(0x7800, eu << 16 | (3 * tid + 1) << 8);
- rdata.ud1.dword = intel_register_read(0x7840);
-
- intel_register_write(0x7800, eu << 16 | (3 * tid + 2) << 8);
- rdata.ud2.dword = intel_register_read(0x7840);
-
- return rdata;
-}
-static void
-print_rdata(struct eu_rdata rdata) {
- printf("\t%s\n", thread_status[rdata.ud0.thread_status]);
- printf("\tn1_dep: %d\n", rdata.ud0.n1_dep);
- printf("\tpwc_dep: %d\n", rdata.ud0.pwc_dep);
- printf("\tswh_dep: %d\n", rdata.ud0.swh_dep);
- printf("\tsource 0 %x\n", rdata.ud1.src0_addr);
- printf("\tsource 1 %x\n", rdata.ud1.src1_addr);
- printf("\tsource 2 %x\n", rdata.ud1.src2_addr);
- printf("\tdest %x\n", rdata.ud1.dst_addr);
- printf("\tmrf %x\n", rdata.ud1.mrf_addr);
- printf("\tIP: %x\n", rdata.ud2.exip);
- printf("\topcode: %x\n", rdata.ud2.opcode);
-}
-
-static void
-find_stuck_threads(void)
-{
- int i, j;
- for (i = 0; i < 15; i++)
- for (j = 0; j < 5; j++) {
- struct eu_rdata rdata;
- rdata = collect_rdata(i, j);
- if (rdata.ud0.thread_status == 2 ||
- rdata.ud0.thread_status == 4) {
- printf("%d %d:\n", i, j);
- print_rdata(rdata);
- }
- }
-}
-
-int main(int argc, char *argv[]) {
- struct pci_device *pci_dev;
- pci_dev = intel_get_pci_device();
-
- intel_register_access_init(pci_dev, 1);
- find_stuck_threads();
-// collect_rdata(atoi(argv[1]), atoi(argv[2]));
- return 0;
-}
diff --git a/debugger/eudb.c b/debugger/eudb.c
deleted file mode 100644
index 866d4b52..00000000
--- a/debugger/eudb.c
+++ /dev/null
@@ -1,602 +0,0 @@
-/*
- * Copyright © 2011 Intel Corporation
- *
- * 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
- * THE AUTHORS OR COPYRIGHT HOLDERS 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:
- * Ben Widawsky <ben at bwidawsk.net>
- *
- * Notes:
- *
- */
-
-#include <signal.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <string.h>
-#include <strings.h>
-#include <assert.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-#include <sys/un.h>
-#include <sys/socket.h>
-#include "drm.h"
-#include "i915_drm.h"
-#include "drmtest.h"
-#include "intel_chipset.h"
-#include "intel_bufmgr.h"
-#include "intel_io.h"
-#include "intel_batchbuffer.h"
-#include "intel_debug.h"
-#include "debug.h"
-
-#define EU_ATT 0x7810
-#define EU_ATT_CLR 0x7830
-
-#define RSVD_EU -1
-#define RSVD_THREAD -1
-#define RSVD_ID EUID(-1, -1, -1)
-
-enum {
- EBAD_SHMEM,
- EBAD_PROTOCOL,
- EBAD_MAGIC,
- EBAD_WRITE
-};
-
-struct debuggee {
- int euid;
- int tid;
- int fd;
- int clr;
- uint32_t reg;
-};
-
-struct debugger {
- struct debuggee *debuggees;
- int num_threads;
- int real_num_threads;
- int threads_per_eu;
-} *eu_info;
-
-drm_intel_bufmgr *bufmgr;
-struct intel_batchbuffer *batch;
-drm_intel_bo *scratch_bo;
-
-int handle;
-int drm_fd;
-int debug_fd = 0;
-const char *debug_file = "dump_debug.bin";
-int debug;
-int clear_waits;
-int shutting_down = 0;
-struct intel_debug_handshake dh;
-int force_clear = 0;
-uint32_t old_td_ctl;
-
-/*
- * The docs are wrong about the attention clear bits. The clear bits are
- * provided as part of the structure in case they change in future generations.
- */
-#define EUID(eu, td, clear) \
- { .euid = eu, .tid = td, .reg = EU_ATT, .fd = -1, .clr = clear }
-#define EUID2(eu, td, clear) \
- { .euid = eu, .tid = td, .reg = EU_ATT + 4, .fd = -1, .clr = clear }
-struct debuggee gt1_debug_ids[] = {
- RSVD_ID, RSVD_ID,
- RSVD_ID, EUID(6, 3, 28), EUID(6, 2, 27), EUID(6, 1, 26), EUID(6, 0, 25),
- RSVD_ID, EUID(5, 3, 23), EUID(5, 2, 22), EUID(5, 1, 21), EUID(5, 0, 20),
- RSVD_ID, EUID(4, 3, 18), EUID(4, 2, 17), EUID(4, 1, 16), EUID(4, 0, 15),
- RSVD_ID, EUID(2, 3, 13), EUID(2, 2, 12), EUID(2, 1, 11), EUID(2, 0, 10),
- RSVD_ID, EUID(1, 3, 8), EUID(1, 2, 7), EUID(1, 1, 6), EUID(1, 0, 5),
- RSVD_ID, EUID(0, 3, 3), EUID(0, 2, 2), EUID(0, 1, 1), EUID(0, 0, 0)
-};
-
-struct debuggee gt2_debug_ids[] = {
- EUID(8, 1, 31), EUID(8, 0, 30),
- EUID(6, 4, 29), EUID(6, 3, 28), EUID(6, 2, 27), EUID(6, 1, 26), EUID(6, 0, 25),
- EUID(5, 4, 24), EUID(5, 3, 23), EUID(5, 2, 22), EUID(5, 1, 21), EUID(5, 0, 20),
- EUID(4, 4, 19), EUID(4, 3, 18), EUID(4, 2, 17), EUID(4, 1, 16), EUID(4, 0, 15),
- EUID(2, 4, 14), EUID(2, 3, 13), EUID(2, 2, 12), EUID(2, 1, 11), EUID(2, 0, 10),
- EUID(1, 4, 9), EUID(1, 3, 8), EUID(1, 2, 7), EUID(1, 1, 6), EUID(1, 0, 5),
- EUID(0, 4, 4), EUID(0, 3, 3), EUID(0, 2, 2), EUID(0, 1, 1), EUID(0, 0, 0),
- RSVD_ID, RSVD_ID, RSVD_ID, RSVD_ID,
- EUID2(14, 4, 27), EUID2(14, 3, 26), EUID2(14, 2, 25), EUID2(14, 1, 24), EUID2(14, 0, 23),
- EUID2(13, 4, 22), EUID2(13, 3, 21), EUID2(13, 2, 20), EUID2(13, 1, 19), EUID2(13, 0, 18),
- EUID2(12, 4, 17), EUID2(12, 3, 16), EUID2(12, 2, 15), EUID2(12, 1, 14), EUID2(12, 0, 13),
- EUID2(10, 4, 12), EUID2(10, 3, 11), EUID2(10, 2, 10), EUID2(10, 1, 9), EUID2(10, 0, 8),
- EUID2(9, 4, 7), EUID2(9, 3, 6), EUID2(9, 2, 5), EUID2(9, 1, 4), EUID2(9, 0, 3),
- EUID2(8, 4, 2), EUID2(8, 3, 1), EUID2(8, 2, 0)
-};
-
-struct debugger gt1 = {
- .debuggees = gt1_debug_ids,
- .num_threads = 32,
- .real_num_threads = 24,
- .threads_per_eu = 4
-};
-
-struct debugger gt2 = {
- .debuggees = gt2_debug_ids,
- .num_threads = 64,
- .real_num_threads = 60,
- .threads_per_eu = 5
-};
-
-static void
-dump_debug(void *buf, size_t count) {
- if (!debug_fd)
- debug_fd = open(debug_file, O_CREAT | O_WRONLY | O_TRUNC, S_IRWXO);
-
- if (write(debug_fd, buf, count) == -1)
- fprintf(stderr, "Error writing to debug file: %s\n",
- strerror(errno));
-}
-
-static volatile void *
-map_debug_buffer(void) {
- int ret;
-
- ret = drm_intel_bo_map(scratch_bo, 0);
- assert(ret == 0);
- return scratch_bo->virtual;
-}
-
-static void
-unmap_debug_buffer(void) {
- drm_intel_bo_unmap(scratch_bo);
-}
-
-static int
-wait_for_attn(int timeout, int *out_bits) {
- int step = 1;
- int eus_waiting = 0;
- int i,j;
-
- if (timeout <= 0) {
- timeout = 1;
- step = 0;
- }
-
- for (i = 0; i < timeout; i += step) {
- for (j = 0; j < 8; j += 4) {
- uint32_t attn = intel_register_read(EU_ATT + j);
- if (attn) {
- int bit = 0;
- while( (bit = ffs(attn)) != 0) {
- bit--; // ffs is 1 based
- assert(bit >= 0);
- out_bits[eus_waiting] = bit + (j * 8);
- attn &= ~(1 << bit);
- eus_waiting++;
- }
- }
- }
-
- if (intel_register_read(EU_ATT + 8) ||
- intel_register_read(EU_ATT + 0xc)) {
- fprintf(stderr, "Unknown attention bits\n");
- }
-
- if (eus_waiting || shutting_down)
- break;
- }
-
- return eus_waiting;
-}
-
-#define eu_fd(bit) eu_info->debuggees[bit].fd
-#define eu_id(bit) eu_info->debuggees[bit].euid
-#define eu_tid(bit) eu_info->debuggees[bit].tid
-static struct eu_state *
-find_eu_shmem(int bit, volatile uint8_t *buf) {
- struct eu_state *eu;
- int mem_tid, mem_euid, i;
-
- for(i = 0; i < eu_info->num_threads; i++) {
- eu = (struct eu_state *)(buf + i * dh.per_thread_scratch);
- mem_tid = eu->sr0 & 0x7;
- mem_euid = (eu->sr0 >> 8) & 0xf;
- if (mem_tid == eu_tid(bit) && mem_euid == eu_id(bit))
- break;
- eu = NULL;
- }
-
- return eu;
-}
-
-#define GRF_CMP(a, b) memcmp(a, b, sizeof(grf))
-#define GRF_CPY(a, b) memcpy(a, b, sizeof(grf))
-static int
-verify(struct eu_state *eu) {
- if (GRF_CMP(eu->version, protocol_version)) {
- if (debug) {
- printf("Bad EU protocol version %x %x\n",
- ((uint32_t *)&eu->version)[0],
- DEBUG_PROTOCOL_VERSION);
- dump_debug((void *)eu, sizeof(*eu));
- }
- return -EBAD_PROTOCOL;
- }
-
- if (GRF_CMP(eu->state_magic, eu_msg)) {
- if (debug) {
- printf("Bad EU state magic %x %x\n",
- ((uint32_t *)&eu->state_magic)[0],
- ((uint32_t *)&eu->state_magic)[1]);
- dump_debug((void *)eu, sizeof(*eu));
- }
- return -EBAD_MAGIC;
- } else {
- GRF_CPY(eu->state_magic, cpu_ack);
- }
-
- eu->sr0 = RSVD_EU << 8 | RSVD_THREAD;
- return 0;
-}
-
-static int
-collect_data(int bit, volatile uint8_t *buf) {
- struct eu_state *eu;
- ssize_t num;
- int ret;
-
- assert(eu_id(bit) != RSVD_EU);
-
- if (eu_fd(bit) == -1) {
- char name[128];
- sprintf(name, "dump_eu_%02d_%d.bin", eu_id(bit), eu_tid(bit));
- eu_fd(bit) = open(name, O_CREAT | O_WRONLY | O_TRUNC, S_IRWXO);
- if (eu_fd(bit) == -1)
- return -1;
- }
-
- eu = find_eu_shmem(bit, buf);
-
- if (eu == NULL) {
- if (debug)
- printf("Bad offset %d %d\n", eu_id(bit), eu_tid(bit));
- return -EBAD_SHMEM;
- }
-
- ret = verify(eu);
- if (ret)
- return ret;
-
- num = write(eu_fd(bit), (void *)eu, sizeof(*eu));
- if (num != sizeof(*eu)) {
- perror("unhandled write failure");
- return EBAD_WRITE;
- }
-
-
- return 0;
-}
-
-static void
-clear_attn(int bit) {
-#if 0
-/*
- * This works but doesn't allow for easily changed clearing bits
- */
-static void
-clear_attn_old(int bit) {
- int bit_to_clear = bit % 32;
- bit_to_clear = 31 - bit_to_clear;
- intel_register_write(0x7830 + (bit/32) * 4, 0);
- intel_register_write(0x7830 + (bit/32) * 4, 1 << bit_to_clear);
-}
-#else
- if (!force_clear) {
- int bit_to_clear;
- bit_to_clear = eu_info->debuggees[bit].clr;
- intel_register_write(EU_ATT_CLR + (bit/32) * 4, 0);
- intel_register_write(EU_ATT_CLR + (bit/32) * 4, 1 << bit_to_clear);
- } else {
- intel_register_write(EU_ATT_CLR + 0, 0);
- intel_register_write(EU_ATT_CLR + 4, 0);
- intel_register_write(EU_ATT_CLR + 0, 0xffffffff);
- intel_register_write(EU_ATT_CLR + 4, 0xffffffff);
- }
-#endif
-}
-
-static void
-db_shutdown(int sig) {
- shutting_down = 1;
- printf("Shutting down...\n");
-}
-
-static void __attribute__((noreturn))
-die(int reason) {
- int i = 0;
-
- intel_register_write(EU_ATT_CLR, 0);
- intel_register_write(EU_ATT_CLR + 4, 0);
-
- if (debug_fd)
- close(debug_fd);
-
- for (i = 0; i < eu_info->num_threads; i++) {
- if (eu_info->debuggees[i].fd != -1)
- close(eu_info->debuggees[i].fd);
- }
-
- unmap_debug_buffer();
-
- if (old_td_ctl)
- intel_register_write(TD_CTL, old_td_ctl);
- intel_register_access_fini();
- exit(reason);
-}
-
-static int
-identify_device(int devid) {
- if (!IS_SANDYBRIDGE(devid))
- return -ENODEV;
-
- switch (intel_gt(devid)) {
- case 0:
- eu_info = >1;
- break;
- case 1:
- eu_info = >2;
- break;
- default:
- return 1;
- }
-
- return 0;
-}
-
-static void
-parse_data(const char *file_name) {
- struct eu_state *eu_state = NULL;
- struct stat st;
- int fd = -1;
- int ret, i, elements;
-
- fd = open(file_name, O_RDONLY);
- if (fd == -1) {
- perror("open");
- goto out;
- }
-
- ret = fstat(fd, &st);
- if (ret == -1) {
- perror("fstat");
- goto out;
- }
-
- elements = st.st_size / sizeof(struct eu_state);
- if (elements == 0) {
- fprintf(stderr, "File not big enough for 1 entry\n");
- goto out;
- }
-
- eu_state = mmap(0, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
- if (eu_state == MAP_FAILED) {
- perror("mmap");
- goto out;
- }
-
- for(i = 0; i < elements; i++) {
- printf("AIP: ");
- printf("%x\n", ((uint32_t *)eu_state[i].cr0)[2]);
- }
-out:
- if (eu_state)
- munmap(eu_state, st.st_size);
- if (fd != -1)
- close(fd);
-}
-
-static int
-wait_for_scratch_bo(void) {
- struct sockaddr_un addr;
- uint32_t version;
- int fd, ret, dh_handle = -1;
-
- assert(sizeof(version) == sizeof(dh.version));
-
- fd = socket(AF_UNIX, SOCK_STREAM, 0);
- if (fd == -1)
- return -1;
-
- /* Clean up previous runs */
- remove(SHADER_DEBUG_SOCKET);
-
- memset(&addr, 0, sizeof(addr));
- addr.sun_family = AF_UNIX;
- strncpy(addr.sun_path, SHADER_DEBUG_SOCKET, sizeof(addr.sun_path) - 1);
-
- ret = bind(fd, (const struct sockaddr *)&addr, sizeof(addr));
- if (ret == -1) {
- perror("listen");
- return -1;
- }
-
- ret = listen(fd, 1);
- if (ret == -1) {
- perror("listen");
- goto done;
- }
-
- while(1) {
- int client_fd;
- size_t count;
- char ack[] = DEBUG_HANDSHAKE_ACK;
-
- client_fd = accept(fd, NULL, NULL);
- if (client_fd == -1) {
- perror("accept");
- goto done;
- }
-
- count = read(client_fd, &version, sizeof(version));
- if (count != sizeof(version)) {
- perror("read version");
- goto loop_out;
- }
-
- if (version != DEBUG_HANDSHAKE_VERSION) {
- fprintf(stderr, "Bad debug handshake\n");
- goto loop_out;
- }
-
- count = read(client_fd, ((char *)&dh) + 1, sizeof(dh) - 1);
- if (count != sizeof(dh) - 1) {
- perror("read handshake");
- goto loop_out;
- }
-
- count = write(client_fd, ack, sizeof(ack));
- if (count != sizeof(ack)) {
- perror("write ack");
- goto loop_out;
- }
- dh_handle = dh.flink_handle;
- if (debug > 0) {
- printf("Handshake completed successfully\n"
- "\tprotocol version = %d\n"
- "\tflink handle = %d\n"
- "\tper thread scratch = %x\n", version,
- dh.flink_handle, dh.per_thread_scratch);
- }
-
- loop_out:
- close(client_fd);
- break;
- }
-
-done:
- close(fd);
- return dh_handle;
-}
-
-static void
-setup_hw_bits(void)
-{
- intel_register_write(INST_PM, GEN6_GLOBAL_DEBUG_ENABLE |
- GEN6_GLOBAL_DEBUG_ENABLE << 16);
- old_td_ctl = intel_register_read(GEN6_TD_CTL);
- intel_register_write(GEN6_TD_CTL, GEN6_TD_CTL_FORCE_TD_BKPT);
-}
-
-int main(int argc, char* argv[]) {
- struct pci_device *pci_dev;
- volatile uint8_t *scratch = NULL;
- int bits[64];
- int devid = -1, opt;
-
- while ((opt = getopt(argc, argv, "cdr:pf?h")) != -1) {
- switch (opt) {
- case 'c':
- clear_waits = 1;
- break;
- case 'd':
- debug = 1;
- break;
- case 'r':
- parse_data(optarg);
- exit(0);
- break;
- case 'p':
- devid = atoi(optarg);
- break;
- case 'f':
- force_clear = 1;
- break;
- case '?':
- case 'h':
- default:
- exit(0);
- }
- }
-
- pci_dev = intel_get_pci_device();
- if (devid == -1)
- devid = pci_dev->device_id;
- if (identify_device(devid)) {
- abort();
- }
-
- assert(intel_register_access_init(pci_dev, 1) == 0);
-
- memset(bits, -1, sizeof(bits));
- /*
- * These events have to occur before the SR runs, or we need
- * non-blocking versions of the functions.
- */
- if (!clear_waits) {
- int dh_handle;
- drm_fd = drm_open_driver(DRIVER_INTEL);
- bufmgr = drm_intel_bufmgr_gem_init(drm_fd, 4096);
-
- setup_hw_bits();
-
- /* We are probably root, make files world friendly */
- umask(0);
- dh_handle = wait_for_scratch_bo();
- if (dh_handle == -1) {
- printf("No handle from mesa, please enter manually: ");
- if (fscanf(stdin, "%1d", &dh_handle) == 0)
- exit(1);
- }
- scratch_bo = intel_bo_gem_create_from_name(bufmgr, "scratch", dh_handle);
- if (scratch_bo == NULL) {
- fprintf(stderr, "Couldn't flink buffer\n");
- abort();
- }
- signal(SIGINT, db_shutdown);
- printf("Press Ctrl-C to stop\n");
- } else {
- int time = force_clear ? 0 : 20000;
- while (wait_for_attn(time, bits)) {
- clear_attn(bits[0]);
- memset(bits, -1, sizeof(bits));
- }
- die(0);
- }
-
- scratch = map_debug_buffer();
- while (shutting_down == 0) {
- int num_events, i;
-
- memset(bits, -1, sizeof(bits));
- num_events = wait_for_attn(-1, bits);
- if (num_events == 0)
- break;
-
- for (i = 0; i < num_events; i++) {
- assert(bits[i] < 64 && bits[i] >= 0);
- if (collect_data(bits[i], scratch)) {
- bits[i] = -1;
- continue;
- }
- clear_attn(bits[i]);
- }
- }
-
- die(0);
- return 0;
-}
diff --git a/debugger/system_routine/.gitignore b/debugger/system_routine/.gitignore
deleted file mode 100644
index d19500cf..00000000
--- a/debugger/system_routine/.gitignore
+++ /dev/null
@@ -1,10 +0,0 @@
-evict.h
-eviction_macro
-sr
-sr.asm
-sr.c
-sr.cpp
-tiny
-tiny.asm
-tiny.c
-tiny.cpp
diff --git a/debugger/system_routine/eviction_macro.c b/debugger/system_routine/eviction_macro.c
deleted file mode 100644
index 1da22332..00000000
--- a/debugger/system_routine/eviction_macro.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright © 2011 Intel Corporation
- *
- * 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
- * THE AUTHORS OR COPYRIGHT HOLDERS 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:
- * Ben Widawsky <ben at bwidawsk.net>
- *
- */
-
-#include <stdio.h>
-
-#define START 0x100
-#define END ((128 << 10) / 4)
-
-int main(int argc, char *argv[]) {
- int i;
- printf("#ifdef SANDYBRIDGE\n");
- printf("#define EVICT_CACHE \\\n");
- printf("\tmov (1) m0.5:ud g0.5:ud FLAGS; \\\n");
- for (i = START; i < END - 8; i+=0x8) {
- printf("\tmov (1) m0.2:ud 0x%04x:ud FLAGS; \\\n", i);
- printf("\tWRITE_SCRATCH4(m0); \\\n");
- }
-
- printf("\tmov (1) m0.2:ud 0x%04x:ud FLAGS; \\\n", i);
- printf("\tWRITE_SCRATCH4(m0)\n");
- printf("#else\n");
- printf("#define EVICT_CACHE\n");
- printf("#endif\n");
-}
diff --git a/debugger/system_routine/pre_cpp.py b/debugger/system_routine/pre_cpp.py
deleted file mode 100755
index 584d2af0..00000000
--- a/debugger/system_routine/pre_cpp.py
+++ /dev/null
@@ -1,126 +0,0 @@
-#!/usr/bin/env python3
-
-# Copyright © 2011 Intel Corporation
-#
-# 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 THE
-# AUTHORS OR COPYRIGHT HOLDERS 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:
-# Ben Widawsky <ben at bwidawsk.net>
-
-#very limited C-like preprocessor
-
-#limitations:
-# no macro substitutions
-# no multiline definitions
-# divide operator is //
-
-import sys,re
-
-# make sure both input file and stdout are handled as utf-8 text, regardless
-# of current locale (eg. LANG=C which tells python to use ascii encoding)
-sys.stdout = open(sys.__stdout__.fileno(), "a", encoding="utf-8")
-file = open(sys.argv[1], "r", encoding="utf-8")
-
-lines = file.readlines()
-len(lines)
-out = dict()
-defines = dict()
-
-count = 0
-#create a dict for our output
-for line in lines:
- out[count] = line
- count = count + 1
-
-#done is considered #define <name> <number>
-def is_done(string):
- m = re.match("#define\s+(\w+?)\s+([a-fA-F0-9\-]+?)\s*$", string)
- return m
-
-#skip macros, the real cpp will handle it
-def skip(string):
- #macro
- m = re.match("#define\s+\w+\(.+", string)
- return m != None
-
-#put contants which are done being evaluated into the dictionary
-def easy_constants():
- ret = 0
- for lineno, string in out.items():
- if skip(string):
- continue
- m = is_done(string)
- if m != None:
- key = m.group(1)
- value = m.group(2)
- if not key in defines:
- defines[key] = int(eval(value))
- ret = 1
- return ret
-
-#replace names with dictionary values
-def simple_replace():
- ret = 0
- for lineno, string in out.items():
- if skip(string):
- continue
- for key, value in defines.items():
- if is_done(string):
- continue
- s = re.subn(key, repr(value), string)
- if s[1] > 0:
- out[lineno] = s[0]
- ret = s[1]
- return ret
-
-#evaluate expressions to try to simplify them
-def collapse_constants():
- ret = 0
- for lineno, string in out.items():
- if skip(string):
- continue
- if is_done(string):
- continue
- m = re.match("#define\s+(.+?)\s+(.+)$", string)
- if m != None:
- try:
- out[lineno] = "#define " + m.group(1) + " " + repr(eval(m.group(2)))
- ret = 1
- except NameError as ne:
- #this happens before a variable is resolved in simple_replace
- continue
- except SyntaxError:
- #this happens with something like #define foo bar, which the
- #regular cpp can handle
- continue
- except:
- raise KeyboardInterrupt
- return ret;
-
-while True:
- ret = 0
- ret += easy_constants()
- ret += simple_replace()
- ret += collapse_constants()
- if ret == 0:
- break;
-
-for lineno, string in out.items():
- print(string.rstrip())
diff --git a/debugger/system_routine/sr.g4a b/debugger/system_routine/sr.g4a
deleted file mode 100644
index a70e7712..00000000
--- a/debugger/system_routine/sr.g4a
+++ /dev/null
@@ -1,277 +0,0 @@
-/*
- * Copyright © 2011 Intel Corporation
- *
- * 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
- * THE AUTHORS OR COPYRIGHT HOLDERS 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:
- * Ben Widawsky <ben at bwidawsk.net>
- *
- */
-
-#include "debug.h"
-#include "evict.h"
-
-#define CR0_0_ME_STATE_CTRL (1 << 31)
-#define CR0_0_BP_SUPPRESS (1 << 15)
-#define CR0_0_SPF_EN (1 << 2)
-#define CR0_0_ACC_DIS (1 << 1)
-#define CR0_1_BES_CTRL (1 << 31)
-#define CR0_1_HALT_CTRL (1 << 30)
-#define CR0_1_SOFT_EXCEPTION_CTRL (1 << 29)
-#define CR0_1_ILLGL_OP_STS (1 << 28)
-#define CR0_1_STACK_OVRFLW_STS (1 << 27)
-
-#define CR0_0_ENTRY_UNMASK (CR0_0_SPF_EN | CR0_0_ACC_DIS)
-// TODO: Need to fix this for non breakpoint case
-#define CR0_1_ENTRY_UNMASK ~(CR0_1_BES_CTRL)
-#define CR0_0_RETURN_MASK ~(CR0_0_ME_STATE_CTRL | CR0_0_SPF_EN | CR0_0_ACC_DIS)
-
-// TODO: not sure how to make this not hardcoded
-#define PER_THREAD_SCRATCH_SIZE (1 << 20)
-#define PER_THREAD_QWORDS (PER_THREAD_SCRATCH_SIZE >> 4)
-
-/* Should get this from brw_defines.h */
-#define BRW_DATAPORT_OWORD_BLOCK_2_OWORDS 2
-#define BRW_DATAPORT_OWORD_BLOCK_4_OWORDS 3
-#define BRW_DATAPORT_OWORD_BLOCK_8_OWORDS 4
-#define GEN6_DATAPORT_WRITE_MESSAGE_OWORD_BLOCK_WRITE 8
-#define BRW_DATAPORT_READ_MESSAGE_OWORD_BLOCK_READ 0
-
-/* desc field, ie. dword3 6.3.66.2 and 2.11.2.1.4 */
-#define SEND_MLEN_5 (5<<25)
-#define SEND_MLEN_3 (3<<25)
-#define SEND_MLEN_2 (2<<25)
-#define SEND_MLEN_1 (1<<25)
-#define SEND_RLEN_1 (1<<20)
-#define SEND_RLEN_0 (0<<20)
-#define SEND_HEADER_PRESENT (1<<19)
-#define SEND_WRITE_COMMIT (1<<17)
-#define SEND_TYPE_WRITE (GEN6_DATAPORT_WRITE_MESSAGE_OWORD_BLOCK_WRITE<<13)
-#define SEND_TYPE_READ (BRW_DATAPORT_READ_MESSAGE_OWORD_BLOCK_READ<<13)
-#define SEND_BLOCK_SIZE1 (BRW_DATAPORT_OWORD_BLOCK_2_OWORDS<<8)
-#define SEND_BLOCK_SIZE2 (BRW_DATAPORT_OWORD_BLOCK_4_OWORDS<<8)
-#define SEND_BLOCK_SIZE4 (BRW_DATAPORT_OWORD_BLOCK_8_OWORDS<<8)
-#define SEND_BINDING_TABLE (255<<0)
-// No write commit
-#define WRITE_DESC1_XXX SEND_BINDING_TABLE | SEND_BLOCK_SIZE1 | SEND_TYPE_WRITE | SEND_HEADER_PRESENT | SEND_MLEN_2
-#define WRITE_DESC1_WC SEND_BINDING_TABLE | SEND_BLOCK_SIZE1 | SEND_TYPE_WRITE | SEND_HEADER_PRESENT | SEND_MLEN_2 | SEND_WRITE_COMMIT
-#define WRITE_DESC2 SEND_BINDING_TABLE | SEND_BLOCK_SIZE2 | SEND_TYPE_WRITE | SEND_HEADER_PRESENT | SEND_MLEN_3
-#define WRITE_DESC4 SEND_BINDING_TABLE | SEND_BLOCK_SIZE4 | SEND_TYPE_WRITE | SEND_HEADER_PRESENT | SEND_MLEN_5
-#define RECV_DESC1 SEND_BINDING_TABLE | SEND_BLOCK_SIZE1 | SEND_TYPE_READ | SEND_HEADER_PRESENT | SEND_MLEN_1 | SEND_RLEN_1
-//#define SEND_DESC1 0x40902FF
-#define SEND_DESC1_WC 0x40b02FF
-
-/* ex_desc field 6.3.66.2 */
-#define SEND_DP_RENDER_CACHE (5<<0)
-#define SEND_EOT (1<<5)
-#define SEND_EX_DESC SEND_DP_RENDER_CACHE
-
-/**
- * WRITE_SCRATCH1 - Write 2 owords.
- * cdst.2 - offset
- * cdst.5 - per thread scratch base, relative to gsba??
- * cdst+1 - data to be written.
- */
-#define WRITE_SCRATCH1(cdst) \
- send (16) null cdst SEND_EX_DESC WRITE_DESC1_XXX FLAGS
-#define WRITE_SCRATCH1_WC(cdst) \
- send (16) g1 cdst SEND_EX_DESC WRITE_DESC1_WC FLAGS
-#define WRITE_SCRATCH2(cdst) \
- send (16) null cdst SEND_EX_DESC WRITE_DESC2 FLAGS
-#define WRITE_SCRATCH4(cdst) \
- send (16) null cdst SEND_EX_DESC WRITE_DESC4 FLAGS
-
-/**
- * READ_SCRATCH1 - Read 2 owords.
- * cdst.2 - offset
- * cdst.5 - per thread scratch base, relative to gsba??
- * grf - register where read data is populated.
- */
-#define READ_SCRATCH1(grf, cdst) \
- send (16) grf:ud cdst SEND_EX_DESC RECV_DESC1 FLAGS
-
-/**
- * SET_OFFSET - setup mrf for the given offset prior to a send instruction.
- * mrf - message register to be used as the header.
- * offset - offset.
- *
- * If a WRITE_SCRATCH follows, mrf+1 -> mrf+1+n should contain the data to be
- * written.
- */
-#define SET_OFFSET(mrf, offset) \
- mov (1) mrf.5:ud g0.5:ud FLAGS; \
- mov (1) mrf.2:ud offset:ud FLAGS
-
-/**
- * SAVE_CRF - save the control register
- * clobbers: m0.2, m0.5
- */
-#define CR_OFFSET 0x40
-#define SAVE_CRF \
- SET_OFFSET(m0, CR_OFFSET); \
- mov (8) m1:ud 0xdeadbeef:ud FLAGS; \
- mov (1) m1.0:ud cr0.0 FLAGS; \
- mov (1) m1.1:ud cr0.1 FLAGS; \
- mov (1) m1.2:ud cr0.2 FLAGS; \
- mov (1) m1.3:ud sr0:ud FLAGS; \
- WRITE_SCRATCH1(m0)
-
-/*
- * clobbers: m0.2, m0.5
- */
-#define STORE_GRF(grf, offset) \
- SET_OFFSET(m0, offset); \
- mov (8) m1:ud grf:ud FLAGS; \
- WRITE_SCRATCH1(m0)
-
-/*
- * clobbers: m0.2, m0.5
- */
-#define LOAD_GRF(grf, offset) \
- SET_OFFSET(m0, offset); \
- READ_SCRATCH1(grf, m0)
-
-/*
- * clobbers: mrf.2 mrf.5
- */
-#define STORE_MRF(mrf, offset) \
- SET_OFFSET(mrf, offset); \
- WRITE_SCRATCH1(mrf)
-
-/*
- * non-quirky semantics, unlike STORE_MRF
- * clobbers: g1
- */
-#define LOAD_MRF(mrf, offset) \
- LOAD_GRF(g1, offset); \
- mov (8) mrf:ud g1:ud FLAGS
-
-#define SAVE_ALL_MRF \
- /* m1 is saved already */ \
- STORE_MRF(m1, 0x2); \
- STORE_MRF(m2, 0x4); \
- STORE_MRF(m3, 0x6); \
- STORE_MRF(m4, 0x8); \
- STORE_MRF(m5, 0xa); \
- STORE_MRF(m6, 0xc); \
- STORE_MRF(m7, 0xe); \
- STORE_MRF(m8, 0x10); \
- STORE_MRF(m9, 0x12); \
- STORE_MRF(m10, 0x14); \
- STORE_MRF(m11, 0x16); \
- STORE_MRF(m12, 0x18); \
- STORE_MRF(m13, 0x1a); \
- STORE_MRF(m14, 0x1c)
-
-#define RESTORE_ALL_MRF \
- LOAD_MRF(m15, 0x1c); \
- LOAD_MRF(m14, 0x1a); \
- LOAD_MRF(m13, 0x18); \
- LOAD_MRF(m12, 0x16); \
- LOAD_MRF(m11, 0x14); \
- LOAD_MRF(m10, 0x12); \
- LOAD_MRF(m9, 0x10); \
- LOAD_MRF(m8, 0xe); \
- LOAD_MRF(m7, 0xc); \
- LOAD_MRF(m6, 0xa); \
- LOAD_MRF(m5, 0x8); \
- LOAD_MRF(m4, 0x6); \
- LOAD_MRF(m3, 0x4); \
- LOAD_MRF(m2, 0x2); \
- LOAD_MRF(m1, 0x0)
-
-#ifndef SANDYBRIDGE
- #error Only SandyBridge is supported
-#endif
-
-/* Default flags for an instruction */
-#define FLAGS { ALIGN1, SWITCH, MASK_DISABLE, ACCWRCTRL}
-
-/*
- * We can clobber m0, and g0.4, everything else must be saved.
- */
-Enter:
- nop;
-
- or (1) cr0.0 cr0.0 CR0_0_ENTRY_UNMASK:ud FLAGS;
-
- /*
- * g0.5 has the per thread scratch space when running in FS or VS.
- * If we don't have a valid g0.5, we can calculate a per thread scratch offset
- * using the system registers. The problem is we do not have a good way to know
- * the offset from GSBA. The system routine will have to be hardcoded or
- * dynamically patched with the correct offset.
- * TID is in sr0.0[2:0]
- * EUID is in sr0.0[11:8]
- */
-
-#ifdef GPGPU
- mov (1) g0.4:ud 0:ud FLAGS;
-#if 0
- /* This should work according to the docs, the add blows up */
- shr (1) g0.8:uw sr0.0:uw 5 FLAGS;
- add (1) g0.16:ub gr0.16:ub sr0.0:ub FLAGS;
-#else
- shr (1) g0.8:uw sr0.0:uw 5 FLAGS;
- mov (1) g0.9:uw sr0.0:uw FLAGS;
- and (1) g0.9:uw g0.9:uw 0x7:uw FLAGS;
- add (1) g0.8:uw g0.8:uw g0.9:uw FLAGS;
- mov (1) g0.9:uw 0:uw FLAGS;
- mul (1) g0.4:ud g0.4:ud PER_THREAD_QWORDS FLAGS;
-#endif
-#endif
-
- mov (8) m0:ud 0:ud FLAGS;
-
- /* Saves must occur in order so as not to clobber the next register */
- STORE_MRF(m0, 0);
- STORE_GRF(g0, 0x20);
- STORE_GRF(g1, 0x22);
- SAVE_ALL_MRF;
-
- mov (8) g1:ud STATE_EU_MSG:ud FLAGS;
- STORE_GRF(g1, STATE_QWORD);
-
- mov (8) g1:ud DEBUG_PROTOCOL_VERSION:ud FLAGS;
- STORE_GRF(g1, COMMUNICATION_QWORD);
-
- SAVE_CRF;
-
- EVICT_CACHE;
- wait n1:ud;
- EVICT_CACHE;
-
- /* Using this to try to keep coherency */
- LOAD_GRF(g1, CR_OFFSET);
- LOAD_GRF(g1, COMMUNICATION_QWORD);
- LOAD_GRF(g1, STATE_QWORD);
-
- RESTORE_ALL_MRF;
- LOAD_GRF(g1, 0x22);
- LOAD_GRF(g0, 0x20);
-
- /* Clear breakpoint status */
- and (1) cr0.1 cr0.1 CR0_1_ENTRY_UNMASK:ud FLAGS;
-
- /* set breakpoint suppress this should be conditional on bes */
- or (1) cr0.0 cr0.0 CR0_0_BP_SUPPRESS:ud FLAGS;
-
- and (1) cr0.0 cr0.0 CR0_0_RETURN_MASK:ud FLAGS;
- nop;
diff --git a/debugger/system_routine/test.g4a b/debugger/system_routine/test.g4a
deleted file mode 100644
index e4296e01..00000000
--- a/debugger/system_routine/test.g4a
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright © 2011 Intel Corporation
- *
- * 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
- * THE AUTHORS OR COPYRIGHT HOLDERS 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:
- * Ben Widawsky <ben at bwidawsk.net>
- *
- */
-
-#include "debug.h"
-
-#define CR0_0_ME_STATE_CTRL (1 << 31)
-#define CR0_0_BP_SUPPRESS (1 << 15)
-#define CR0_0_SPF_EN (1 << 2)
-#define CR0_0_ACC_DIS (1 << 1)
-#define CR0_1_BES_CTRL (1 << 31)
-#define CR0_1_HALT_CTRL (1 << 30)
-#define CR0_1_SOFT_EXCEPTION_CTRL (1 << 29)
-#define CR0_1_ILLGL_OP_STS (1 << 28)
-#define CR0_1_STACK_OVRFLW_STS (1 << 27)
-
-#define CR0_0_ENTRY_UNMASK (CR0_0_SPF_EN | CR0_0_ACC_DIS)
-// TODO: Need to fix this for non breakpoint case
-#define CR0_1_ENTRY_UNMASK ~(CR0_1_BES_CTRL)
-#define CR0_0_RETURN_MASK ~(CR0_0_ME_STATE_CTRL | CR0_0_SPF_EN | CR0_0_ACC_DIS)
-
-#ifndef SANDYBRIDGE
- #error Only SandyBridge is supported
-#endif
-
-/* Default flags for an instruction */
-#define FLAGS { ALIGN1, SWITCH, MASK_DISABLE, ACCWRCTRL}
-
-Enter:
- nop;
-
- or (1) cr0.0 cr0.0 CR0_0_ENTRY_UNMASK:ud FLAGS;
-
- /* Clear breakpoint status */
- and (1) cr0.1 cr0.1 CR0_1_ENTRY_UNMASK:ud FLAGS;
-
- /* set breakpoint suppress this should be conditional on bes */
- or (1) cr0.0 cr0.0 CR0_0_BP_SUPPRESS:ud FLAGS;
-
- and (1) cr0.0 cr0.0 CR0_0_RETURN_MASK:ud FLAGS;
- nop;
--
2.20.1
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