AI Trajectory

null

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "KMSANReasoning": "",
  "NeedsKMSAN": false,
  "Reasoning": "The patch modifies calibration and temperature translation logic in the NVIDIA Tegra SOCTHERM driver (drivers/thermal/tegra/), adding lower precision support for Tegra114 SoCs. This driver is specific to ARM/ARM64 Tegra SoCs and requires dedicated Tegra hardware not available in standard virtualized amd64 environments. On the target architecture (amd64), the SoC-specific configurations cannot be enabled and the driver is structurally unreachable.",
  "WorthFuzzing": false
}

null

{
  "PatchDiff": "commit d8b4979c61d11a6bf9724d39c959374c175fab31\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Tue Nov 10 03:08:21 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/drivers/thermal/tegra/soctherm-fuse.c b/drivers/thermal/tegra/soctherm-fuse.c\nindex 8d37cd8c9122b3..bba563961da745 100644\n--- a/drivers/thermal/tegra/soctherm-fuse.c\n+++ b/drivers/thermal/tegra/soctherm-fuse.c\n@@ -102,7 +102,7 @@ int tegra_calc_shared_calib(const struct tegra_soctherm_fuse *tfuse,\n \n \tshifted_cp = (val \u0026 tfuse-\u003efuse_shift_cp_mask) \u003e\u003e\n \t\t     tfuse-\u003efuse_shift_cp_shift;\n-\tshifted_cp = sign_extend32(val, 5);\n+\tshifted_cp = sign_extend32(shifted_cp, 5);\n \n \tshared-\u003eactual_temp_cp = 2 * NOMINAL_CALIB_CP + shifted_cp;\n \tshared-\u003eactual_temp_ft = 2 * tfuse-\u003enominal_calib_ft + shifted_ft;\n@@ -118,7 +118,7 @@ int tegra_calc_tsensor_calib(const struct tegra_tsensor *sensor,\n \tu32 val, calib;\n \ts32 actual_tsensor_ft, actual_tsensor_cp;\n \ts32 delta_sens, delta_temp;\n-\ts32 mult, div;\n+\ts32 mult, div, coeff;\n \ts16 therma, thermb;\n \ts64 temp;\n \tint err;\n@@ -147,11 +147,20 @@ int tegra_calc_tsensor_calib(const struct tegra_tsensor *sensor,\n \t\t((s64)actual_tsensor_cp * shared-\u003eactual_temp_ft);\n \tthermb = div64_s64_precise(temp, delta_sens);\n \n+\t/*\n+\t * With lower precision the sensors count in 1 C units, which keeps\n+\t * THERMA * capture within the 24 bits the hardware calculates with.\n+\t * Halve both coefficients in the final rounding step.\n+\t */\n+\tcoeff = CALIB_COEFFICIENT;\n+\tif (shared-\u003elower_precision)\n+\t\tcoeff *= 2;\n+\n \ttemp = (s64)therma * sensor-\u003efuse_corr_alpha;\n-\ttherma = div64_s64_precise(temp, CALIB_COEFFICIENT);\n+\ttherma = div64_s64_precise(temp, coeff);\n \n \ttemp = (s64)thermb * sensor-\u003efuse_corr_alpha + sensor-\u003efuse_corr_beta;\n-\tthermb = div64_s64_precise(temp, CALIB_COEFFICIENT);\n+\tthermb = div64_s64_precise(temp, coeff);\n \n \tcalib = ((u16)therma \u003c\u003c SENSOR_CONFIG2_THERMA_SHIFT) |\n \t\t((u16)thermb \u003c\u003c SENSOR_CONFIG2_THERMB_SHIFT);\ndiff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c\nindex f74acf13b24d23..0f6e5455ebb46e 100644\n--- a/drivers/thermal/tegra/soctherm.c\n+++ b/drivers/thermal/tegra/soctherm.c\n@@ -413,9 +413,10 @@ static void enable_tsensor(struct tegra_soctherm *tegra, unsigned int i)\n  *   TTTTTTTT H______N\n  * where T's contain the temperature in Celsius,\n  * H denotes an addition of 0.5 Celsius and N denotes negation\n- * of the final value.\n+ * of the final value. With lower precision all of this is in\n+ * units of 2 Celsius.\n  */\n-static int translate_temp(u16 val)\n+static int translate_temp(const struct tegra_soctherm *ts, u16 val)\n {\n \tint t;\n \n@@ -424,6 +425,8 @@ static int translate_temp(u16 val)\n \t\tt += 500;\n \tif (val \u0026 READBACK_NEGATE)\n \t\tt *= -1;\n+\tif (ts-\u003esoc-\u003elower_precision)\n+\t\tt *= 2;\n \n \treturn t;\n }\n@@ -435,7 +438,7 @@ static int tegra_thermctl_get_temp(struct thermal_zone_device *tz, int *out_temp\n \n \tval = readl(zone-\u003ereg);\n \tval = REG_GET_MASK(val, zone-\u003esg-\u003esensor_temp_mask);\n-\t*out_temp = translate_temp(val);\n+\t*out_temp = translate_temp(zone-\u003ets, val);\n \n \treturn 0;\n }\n@@ -1287,7 +1290,7 @@ static int regs_show(struct seq_file *s, void *data)\n \t\tstate = REG_GET_MASK(r, SENSOR_STATUS1_TEMP_VALID_MASK);\n \t\tseq_printf(s, \"Temp(%d/\", state);\n \t\tstate = REG_GET_MASK(r, SENSOR_STATUS1_TEMP_MASK);\n-\t\tseq_printf(s, \"%d) \", translate_temp(state));\n+\t\tseq_printf(s, \"%d) \", translate_temp(ts, state));\n \n \t\tr = readl(ts-\u003eregs + tsensors[i].base + SENSOR_STATUS0);\n \t\tstate = REG_GET_MASK(r, SENSOR_STATUS0_VALID_MASK);\n@@ -1325,14 +1328,14 @@ static int regs_show(struct seq_file *s, void *data)\n \n \tr = readl(ts-\u003eregs + SENSOR_TEMP1);\n \tstate = REG_GET_MASK(r, SENSOR_TEMP1_CPU_TEMP_MASK);\n-\tseq_printf(s, \"Temperatures: CPU(%d) \", translate_temp(state));\n+\tseq_printf(s, \"Temperatures: CPU(%d) \", translate_temp(ts, state));\n \tstate = REG_GET_MASK(r, SENSOR_TEMP1_GPU_TEMP_MASK);\n-\tseq_printf(s, \" GPU(%d) \", translate_temp(state));\n+\tseq_printf(s, \" GPU(%d) \", translate_temp(ts, state));\n \tr = readl(ts-\u003eregs + SENSOR_TEMP2);\n \tstate = REG_GET_MASK(r, SENSOR_TEMP2_PLLX_TEMP_MASK);\n-\tseq_printf(s, \" PLLX(%d) \", translate_temp(state));\n+\tseq_printf(s, \" PLLX(%d) \", translate_temp(ts, state));\n \tstate = REG_GET_MASK(r, SENSOR_TEMP2_MEM_TEMP_MASK);\n-\tseq_printf(s, \" MEM(%d)\\n\", translate_temp(state));\n+\tseq_printf(s, \" MEM(%d)\\n\", translate_temp(ts, state));\n \n \tfor (i = 0; i \u003c ts-\u003esoc-\u003enum_ttgs; i++) {\n \t\tseq_printf(s, \"%s:\\n\", ttgs[i]-\u003ename);\n@@ -2159,6 +2162,8 @@ static int tegra_soctherm_probe(struct platform_device *pdev)\n \tif (err)\n \t\treturn err;\n \n+\tshared_calib.lower_precision = soc-\u003elower_precision;\n+\n \t/* calculate tsensor calibration data */\n \tfor (i = 0; i \u003c soc-\u003enum_tsensors; ++i) {\n \t\terr = tegra_calc_tsensor_calib(\u0026soc-\u003etsensors[i],\ndiff --git a/drivers/thermal/tegra/soctherm.h b/drivers/thermal/tegra/soctherm.h\nindex aa4af9268b05d8..67d4ca149e591d 100644\n--- a/drivers/thermal/tegra/soctherm.h\n+++ b/drivers/thermal/tegra/soctherm.h\n@@ -122,6 +122,7 @@ struct tegra_soctherm_fuse {\n struct tsensor_shared_calib {\n \tu32 base_cp, base_ft;\n \tu32 actual_temp_cp, actual_temp_ft;\n+\tbool lower_precision;\n };\n \n struct tegra_soctherm_soc {\n@@ -133,6 +134,11 @@ struct tegra_soctherm_soc {\n \tconst int thresh_grain;\n \tconst unsigned int bptt;\n \tconst bool use_ccroc;\n+\t/*\n+\t * Sensors count in 1 C instead of 0.5 C units: the readback and\n+\t * the thresholds are in 2 C steps then.\n+\t */\n+\tconst bool lower_precision;\n \tstruct tsensor_group_thermtrips *thermtrips;\n };\n \ndiff --git a/drivers/thermal/tegra/tegra114-soctherm.c b/drivers/thermal/tegra/tegra114-soctherm.c\nindex 688104f2805280..0a30103c3f749c 100644\n--- a/drivers/thermal/tegra/tegra114-soctherm.c\n+++ b/drivers/thermal/tegra/tegra114-soctherm.c\n@@ -23,7 +23,8 @@\n #define TEGRA114_THERMCTL_LVL0_UP_THRESH_MASK\t(0xff \u003c\u003c 17)\n #define TEGRA114_THERMCTL_LVL0_DN_THRESH_MASK\t(0xff \u003c\u003c 9)\n \n-#define TEGRA114_THRESH_GRAIN\t\t\t1000\n+/* thresholds are in 2 C steps because of the lower precision */\n+#define TEGRA114_THRESH_GRAIN\t\t\t2000\n #define TEGRA114_BPTT\t\t\t\t8\n \n static const struct tegra_tsensor_configuration tegra114_tsensor_config = {\n@@ -206,4 +207,5 @@ const struct tegra_soctherm_soc tegra114_soctherm = {\n \t.thresh_grain = TEGRA114_THRESH_GRAIN,\n \t.bptt = TEGRA114_BPTT,\n \t.use_ccroc = false,\n+\t.lower_precision = true,\n };\n"
}

core

null

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch modifies calibration and temperature translation logic in the NVIDIA Tegra SOCTHERM driver (drivers/thermal/tegra/), adding lower precision support for Tegra114 SoCs. This driver is specific to ARM/ARM64 Tegra SoCs and requires dedicated Tegra hardware not available in standard virtualized amd64 environments. On the target architecture (amd64), the SoC-specific configurations cannot be enabled and the driver is structurally unreachable.",
  "WorthFuzzing": false
}

You are an expert Linux kernel maintainer and security engineer.
Your job is to review a provided patch series and evaluate whether it warrants fuzzing with syzkaller.

IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in
your workspace. Do NOT rely on internal assumptions. You must actively use your code access
tools to inspect the actual source code, callers, and surrounding context.

================================================================================
1. CORE TRIAGE PHILOSOPHY
================================================================================
The goal of patch fuzzing is to discover crashes, regressions, exposed latent bugs,
and newly triggered assertions introduced by the patch series.

- REACHABILITY IS THE PRIMARY GATE:
  Fuzzing can only discover bugs in code that can actually execute in standard virtualized
  environments (GCE or QEMU, utilizing software-emulated devices like USB gadgets, netdev, tun/tap).
  If the modified code is structurally unreachable (see Section 2), it MUST NOT be fuzzed,
  regardless of whether it adds assertions or complex logic.

- DO NOT BLINDLY TRUST "NO FUNCTIONAL CHANGE" (NFCI) OR "REFACTORING" CLAIMS:
  Patch authors routinely label changes as "cleanups", "refactorings", or state
  "No functional change intended". Do NOT take these claims at face value.
  Code refactorings that rearrange logic, introduce helper functions, or alter state management
  in core subsystems frequently introduce subtle semantic shifts or uncover latent kernel bugs.
  If reachable executable code is modified or refactored, it MUST be fuzzed.

- NEW OR MODIFIED ASSERTIONS IN REACHABLE CODE MUST BE FUZZED:
  When a patch introduces or modifies runtime checks or assertions (e.g., WARN_ON*, VM_WARN_ON*,
  BUG_ON*, lockdep_assert*) in reachable code paths, it enforces new or stricter invariants.
  Even if the author believes the invariant always holds, fuzzing is essential to verify whether
  an unusual sequence of operations can violate it.

================================================================================
2. WHEN TO RETURN WorthFuzzing=false (NEGATIVE CRITERIA)
================================================================================
Return WorthFuzzing=false ONLY IF all modified code falls strictly into one or more of these categories:

- Non-kernel and non-executable changes:
  * Modifications to Documentation/, comments, or spelling fixes.
  * User-space directories, self-tests, samples, or scripts (e.g., tools/, samples/, scripts/, usr/)
    that do not affect the compiled kernel image (vmlinux) or kernel modules.
  * Purely decorative logging (e.g., message strings in pr_err, printk, dev_info) or tracepoints
    that do not alter control flow or data structures.
  * Build system or Kconfig changes that do not alter compiled C logic.
- Structurally unreachable hardware:
  * Vendor-specific PCIe switches, SmartNICs, or GPU drivers (e.g., mlxsw, pds_core, qed,
    ionic, amdgpu) requiring physical ASIC/PCIe cards not emulated in standard QEMU.
- Unreachable execution paths:
  * Driver teardown callbacks (.remove, .shutdown, pci_unregister_driver) executed only during
    physical PCI hot-unplug or manual sysfs driver unbinding.
  * Code paths exclusive to architectures other than the target architecture.

================================================================================
3. WHEN TO RETURN WorthFuzzing=true (POSITIVE CRITERIA)
================================================================================
Return WorthFuzzing=true whenever the patch touches reachable executable code, including:
- Core Subsystems:
  * Any logic modifications in memory management (mm/), synchronization/locking (kernel/locking/),
    BPF, scheduler, core networking, VFS, or syscall handling.
- Refactorings and Code Cleanups:
  * Any restructuring of reachable data structures, helper abstractions, or algorithm flows.
- Runtime Assertions and Defensive Checks:
  * Any introduction or alteration of assertions (WARN_ON*, VM_WARN_ON*, BUG_ON*, etc.) in reachable paths.
- Reachable Drivers and Protocols:
  * Drivers accessible via virtual buses (virtio, USB gadget, loopback, netlink, binder, sockets, etc.).

================================================================================
4. EXTRACTING FocusSymbols (PREVENTING DILUTION)
================================================================================
When WorthFuzzing=true, you must extract specific kernel functions into FocusSymbols to guide the fuzzer:

- AVOID UBIQUITOUS LIFECYCLE HOT-PATHS:
  Do NOT list generic, ubiquitous functions called by almost every program in the corpus
  (including, but not limited to: general memory allocators and deallocators, page fault
  and trap handlers, or core synchronization primitives; this is not an exhaustive list).
  Listing ubiquitous functions causes the fuzzer to classify thousands of unrelated tests as "focused",
  which severely dilutes fuzzing effort away from the actual changes.

- TARGET SPECIFIC FEATURE LOGIC AND ENTRYPOINTS:
  List functions that specifically implement the logic being added or altered, or direct API entrypoints
  for the subsystem feature under review.

- HANDLING STATIC INLINE FUNCTIONS IN HEADERS (.h):
  Compiler-inlined static functions (such as static inlines in mm/*.h or include/linux/*.h) lack
  distinct symbol addresses in vmlinux and cannot be targeted directly by symbol coverage filters.
  If the changes are primarily in static inline helpers, identify non-static, feature-specific caller
  functions in .c files that exercise them (avoiding ubiquitous lifecycle wrappers).

================================================================================
5. IDENTIFYING EnableConfigs
================================================================================
Identify any specific CONFIG_ options required to properly compile and reach the modified code:
- Inspect Kconfig files and #ifdef guards; do not make assumptions.
- Check "depends on" lines in Kconfig to include any non-standard parent subsystem configs needed.
- Strip any 'CONFIG_' prefix (e.g., return "NET_IPV4" instead of "CONFIG_NET_IPV4").
Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Target architecture: amd64

For your convenience, here is the diff of the changes:
commit d8b4979c61d11a6bf9724d39c959374c175fab31
Author: syz-cluster <triage@syzkaller.com>
Date:   Tue Nov 10 03:08:21 2026 +0000

    syz-cluster: applied patch under review

diff --git a/drivers/thermal/tegra/soctherm-fuse.c b/drivers/thermal/tegra/soctherm-fuse.c
index 8d37cd8c9122b3..bba563961da745 100644
--- a/drivers/thermal/tegra/soctherm-fuse.c
+++ b/drivers/thermal/tegra/soctherm-fuse.c
@@ -102,7 +102,7 @@ int tegra_calc_shared_calib(const struct tegra_soctherm_fuse *tfuse,
 
 	shifted_cp = (val & tfuse->fuse_shift_cp_mask) >>
 		     tfuse->fuse_shift_cp_shift;
-	shifted_cp = sign_extend32(val, 5);
+	shifted_cp = sign_extend32(shifted_cp, 5);
 
 	shared->actual_temp_cp = 2 * NOMINAL_CALIB_CP + shifted_cp;
 	shared->actual_temp_ft = 2 * tfuse->nominal_calib_ft + shifted_ft;
@@ -118,7 +118,7 @@ int tegra_calc_tsensor_calib(const struct tegra_tsensor *sensor,
 	u32 val, calib;
 	s32 actual_tsensor_ft, actual_tsensor_cp;
 	s32 delta_sens, delta_temp;
-	s32 mult, div;
+	s32 mult, div, coeff;
 	s16 therma, thermb;
 	s64 temp;
 	int err;
@@ -147,11 +147,20 @@ int tegra_calc_tsensor_calib(const struct tegra_tsensor *sensor,
 		((s64)actual_tsensor_cp * shared->actual_temp_ft);
 	thermb = div64_s64_precise(temp, delta_sens);
 
+	/*
+	 * With lower precision the sensors count in 1 C units, which keeps
+	 * THERMA * capture within the 24 bits the hardware calculates with.
+	 * Halve both coefficients in the final rounding step.
+	 */
+	coeff = CALIB_COEFFICIENT;
+	if (shared->lower_precision)
+		coeff *= 2;
+
 	temp = (s64)therma * sensor->fuse_corr_alpha;
-	therma = div64_s64_precise(temp, CALIB_COEFFICIENT);
+	therma = div64_s64_precise(temp, coeff);
 
 	temp = (s64)thermb * sensor->fuse_corr_alpha + sensor->fuse_corr_beta;
-	thermb = div64_s64_precise(temp, CALIB_COEFFICIENT);
+	thermb = div64_s64_precise(temp, coeff);
 
 	calib = ((u16)therma << SENSOR_CONFIG2_THERMA_SHIFT) |
 		((u16)thermb << SENSOR_CONFIG2_THERMB_SHIFT);
diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c
index f74acf13b24d23..0f6e5455ebb46e 100644
--- a/drivers/thermal/tegra/soctherm.c
+++ b/drivers/thermal/tegra/soctherm.c
@@ -413,9 +413,10 @@ static void enable_tsensor(struct tegra_soctherm *tegra, unsigned int i)
  *   TTTTTTTT H______N
  * where T's contain the temperature in Celsius,
  * H denotes an addition of 0.5 Celsius and N denotes negation
- * of the final value.
+ * of the final value. With lower precision all of this is in
+ * units of 2 Celsius.
  */
-static int translate_temp(u16 val)
+static int translate_temp(const struct tegra_soctherm *ts, u16 val)
 {
 	int t;
 
@@ -424,6 +425,8 @@ static int translate_temp(u16 val)
 		t += 500;
 	if (val & READBACK_NEGATE)
 		t *= -1;
+	if (ts->soc->lower_precision)
+		t *= 2;
 
 	return t;
 }
@@ -435,7 +438,7 @@ static int tegra_thermctl_get_temp(struct thermal_zone_device *tz, int *out_temp
 
 	val = readl(zone->reg);
 	val = REG_GET_MASK(val, zone->sg->sensor_temp_mask);
-	*out_temp = translate_temp(val);
+	*out_temp = translate_temp(zone->ts, val);
 
 	return 0;
 }
@@ -1287,7 +1290,7 @@ static int regs_show(struct seq_file *s, void *data)
 		state = REG_GET_MASK(r, SENSOR_STATUS1_TEMP_VALID_MASK);
 		seq_printf(s, "Temp(%d/", state);
 		state = REG_GET_MASK(r, SENSOR_STATUS1_TEMP_MASK);
-		seq_printf(s, "%d) ", translate_temp(state));
+		seq_printf(s, "%d) ", translate_temp(ts, state));
 
 		r = readl(ts->regs + tsensors[i].base + SENSOR_STATUS0);
 		state = REG_GET_MASK(r, SENSOR_STATUS0_VALID_MASK);
@@ -1325,14 +1328,14 @@ static int regs_show(struct seq_file *s, void *data)
 
 	r = readl(ts->regs + SENSOR_TEMP1);
 	state = REG_GET_MASK(r, SENSOR_TEMP1_CPU_TEMP_MASK);
-	seq_printf(s, "Temperatures: CPU(%d) ", translate_temp(state));
+	seq_printf(s, "Temperatures: CPU(%d) ", translate_temp(ts, state));
 	state = REG_GET_MASK(r, SENSOR_TEMP1_GPU_TEMP_MASK);
-	seq_printf(s, " GPU(%d) ", translate_temp(state));
+	seq_printf(s, " GPU(%d) ", translate_temp(ts, state));
 	r = readl(ts->regs + SENSOR_TEMP2);
 	state = REG_GET_MASK(r, SENSOR_TEMP2_PLLX_TEMP_MASK);
-	seq_printf(s, " PLLX(%d) ", translate_temp(state));
+	seq_printf(s, " PLLX(%d) ", translate_temp(ts, state));
 	state = REG_GET_MASK(r, SENSOR_TEMP2_MEM_TEMP_MASK);
-	seq_printf(s, " MEM(%d)\n", translate_temp(state));
+	seq_printf(s, " MEM(%d)\n", translate_temp(ts, state));
 
 	for (i = 0; i < ts->soc->num_ttgs; i++) {
 		seq_printf(s, "%s:\n", ttgs[i]->name);
@@ -2159,6 +2162,8 @@ static int tegra_soctherm_probe(struct platform_device *pdev)
 	if (err)
 		return err;
 
+	shared_calib.lower_precision = soc->lower_precision;
+
 	/* calculate tsensor calibration data */
 	for (i = 0; i < soc->num_tsensors; ++i) {
 		err = tegra_calc_tsensor_calib(&soc->tsensors[i],
diff --git a/drivers/thermal/tegra/soctherm.h b/drivers/thermal/tegra/soctherm.h
index aa4af9268b05d8..67d4ca149e591d 100644
--- a/drivers/thermal/tegra/soctherm.h
+++ b/drivers/thermal/tegra/soctherm.h
@@ -122,6 +122,7 @@ struct tegra_soctherm_fuse {
 struct tsensor_shared_calib {
 	u32 base_cp, base_ft;
 	u32 actual_temp_cp, actual_temp_ft;
+	bool lower_precision;
 };
 
 struct tegra_soctherm_soc {
@@ -133,6 +134,11 @@ struct tegra_soctherm_soc {
 	const int thresh_grain;
 	const unsigned int bptt;
 	const bool use_ccroc;
+	/*
+	 * Sensors count in 1 C instead of 0.5 C units: the readback and
+	 * the thresholds are in 2 C steps then.
+	 */
+	const bool lower_precision;
 	struct tsensor_group_thermtrips *thermtrips;
 };
 
diff --git a/drivers/thermal/tegra/tegra114-soctherm.c b/drivers/thermal/tegra/tegra114-soctherm.c
index 688104f2805280..0a30103c3f749c 100644
--- a/drivers/thermal/tegra/tegra114-soctherm.c
+++ b/drivers/thermal/tegra/tegra114-soctherm.c
@@ -23,7 +23,8 @@
 #define TEGRA114_THERMCTL_LVL0_UP_THRESH_MASK	(0xff << 17)
 #define TEGRA114_THERMCTL_LVL0_DN_THRESH_MASK	(0xff << 9)
 
-#define TEGRA114_THRESH_GRAIN			1000
+/* thresholds are in 2 C steps because of the lower precision */
+#define TEGRA114_THRESH_GRAIN			2000
 #define TEGRA114_BPTT				8
 
 static const struct tegra_tsensor_configuration tegra114_tsensor_config = {
@@ -206,4 +207,5 @@ const struct tegra_soctherm_soc tegra114_soctherm = {
 	.thresh_grain = TEGRA114_THRESH_GRAIN,
 	.bptt = TEGRA114_BPTT,
 	.use_ccroc = false,
+	.lower_precision = true,
 };

gemini-3.8-flash

null

null

							input: 5509
							output: 32
							thoughts: 183
						

Okay, here's my take on this – I'm thinking through this patch context.

**Initial Assessment: Tegra Thermal Driver Patch**

Alright, let's break this down. First things first, I see we're dealing with a patch, and the target architecture is amd64. My initial reaction is: *intriguing*. The changes are concentrated in the Tegra thermal driver files: `soctherm-fuse.c`, `soctherm.c`, `soctherm.h`, and `tegra114-soctherm.c`. Those file names trigger some immediate flags.

My next step is to nail down the hardware context. *Tegra*… specifically, the `soctherm` thermal driver. That screams NVIDIA's Tegra SoCs. Right, and Tegra is typically ARM or ARM64-based. Wait a sec… we're targeting *amd64* in the patch. Is this a cross-compilation thing, or something else entirely? I need to verify whether `tegra soctherm` is even *meant* to compile or run on amd64. That raises serious flags right away.

To resolve this, I'm going to jump into the Kconfig files for drivers/thermal/tegra and see what conditional compilation options are defined. This will quickly tell me if there's any pathway, however unlikely, for this code to be enabled on a non-Tegra architecture. It also helps to determine if there is an effort to make it support other architectures. I would assume this is not the case because it uses the tegra prefix.

{
  "Expression": "TEGRA_SOCTHERM",
  "PathPrefixes": [
    "drivers/thermal/"
  ]
}

{
  "Output": "drivers/thermal/tegra/Kconfig=3=depends on ARCH_TEGRA || COMPILE_TEST\ndrivers/thermal/tegra/Kconfig-4-\ndrivers/thermal/tegra/Kconfig:5:config TEGRA_SOCTHERM\ndrivers/thermal/tegra/Kconfig-6-\ttristate \"Tegra SOCTHERM thermal management\"\n--\ndrivers/thermal/tegra/Makefile-1-# SPDX-License-Identifier: GPL-2.0\ndrivers/thermal/tegra/Makefile:2:obj-$(CONFIG_TEGRA_SOCTHERM)\t\t+= tegra-soctherm.o\ndrivers/thermal/tegra/Makefile-3-obj-$(CONFIG_TEGRA_BPMP_THERMAL)\t+= tegra-bpmp-thermal.o\n--\ndrivers/thermal/tegra/soctherm.c=1616=static int soctherm_throt_cfg_parse(struct device *dev,\n--\ndrivers/thermal/tegra/soctherm.c-1635-\t\tif (ts-\u003esoc-\u003euse_ccroc \u0026\u0026\ndrivers/thermal/tegra/soctherm.c:1636:\t\t    val \u003c= TEGRA_SOCTHERM_THROT_LEVEL_HIGH)\ndrivers/thermal/tegra/soctherm.c-1637-\t\t\tstc-\u003ecpu_throt_level = val;\n--\ndrivers/thermal/tegra/soctherm.c-1646-\tret = of_property_read_u32(np, \"nvidia,gpu-throt-level\", \u0026val);\ndrivers/thermal/tegra/soctherm.c:1647:\tif (!ret \u0026\u0026 val \u003c= TEGRA_SOCTHERM_THROT_LEVEL_HIGH)\ndrivers/thermal/tegra/soctherm.c-1648-\t\tstc-\u003egpu_throt_level = val;\n--\ndrivers/thermal/tegra/soctherm.c=1743=static void throttlectl_cpu_level_cfg(struct tegra_soctherm *ts, int level)\n--\ndrivers/thermal/tegra/soctherm.c-1748-\tswitch (level) {\ndrivers/thermal/tegra/soctherm.c:1749:\tcase TEGRA_SOCTHERM_THROT_LEVEL_LOW:\ndrivers/thermal/tegra/soctherm.c-1750-\t\tdepth = 50;\ndrivers/thermal/tegra/soctherm.c-1751-\t\tbreak;\ndrivers/thermal/tegra/soctherm.c:1752:\tcase TEGRA_SOCTHERM_THROT_LEVEL_MED:\ndrivers/thermal/tegra/soctherm.c-1753-\t\tdepth = 75;\ndrivers/thermal/tegra/soctherm.c-1754-\t\tbreak;\ndrivers/thermal/tegra/soctherm.c:1755:\tcase TEGRA_SOCTHERM_THROT_LEVEL_HIGH:\ndrivers/thermal/tegra/soctherm.c-1756-\t\tdepth = 80;\ndrivers/thermal/tegra/soctherm.c-1757-\t\tbreak;\ndrivers/thermal/tegra/soctherm.c:1758:\tcase TEGRA_SOCTHERM_THROT_LEVEL_NONE:\ndrivers/thermal/tegra/soctherm.c-1759-\t\treturn;\n--\ndrivers/thermal/tegra/soctherm.c=1791=static void throttlectl_cpu_level_select(struct tegra_soctherm *ts,\n--\ndrivers/thermal/tegra/soctherm.c-1797-\tswitch (ts-\u003ethrot_cfgs[throt].cpu_throt_level) {\ndrivers/thermal/tegra/soctherm.c:1798:\tcase TEGRA_SOCTHERM_THROT_LEVEL_LOW:\ndrivers/thermal/tegra/soctherm.c-1799-\t\tthrot_vect = THROT_VECT_LOW;\ndrivers/thermal/tegra/soctherm.c-1800-\t\tbreak;\ndrivers/thermal/tegra/soctherm.c:1801:\tcase TEGRA_SOCTHERM_THROT_LEVEL_MED:\ndrivers/thermal/tegra/soctherm.c-1802-\t\tthrot_vect = THROT_VECT_MED;\ndrivers/thermal/tegra/soctherm.c-1803-\t\tbreak;\ndrivers/thermal/tegra/soctherm.c:1804:\tcase TEGRA_SOCTHERM_THROT_LEVEL_HIGH:\ndrivers/thermal/tegra/soctherm.c-1805-\t\tthrot_vect = THROT_VECT_HIGH;\n--\ndrivers/thermal/tegra/soctherm.c=1945=static void tegra_soctherm_throttle(struct device *dev)\n--\ndrivers/thermal/tegra/soctherm.c-1952-\tif (ts-\u003esoc-\u003euse_ccroc) {\ndrivers/thermal/tegra/soctherm.c:1953:\t\tthrottlectl_cpu_level_cfg(ts, TEGRA_SOCTHERM_THROT_LEVEL_LOW);\ndrivers/thermal/tegra/soctherm.c:1954:\t\tthrottlectl_cpu_level_cfg(ts, TEGRA_SOCTHERM_THROT_LEVEL_MED);\ndrivers/thermal/tegra/soctherm.c:1955:\t\tthrottlectl_cpu_level_cfg(ts, TEGRA_SOCTHERM_THROT_LEVEL_HIGH);\ndrivers/thermal/tegra/soctherm.c-1956-\t}\n--\ndrivers/thermal/tegra/soctherm.h-15-\ndrivers/thermal/tegra/soctherm.h:16:#ifndef __DRIVERS_THERMAL_TEGRA_SOCTHERM_H\ndrivers/thermal/tegra/soctherm.h:17:#define __DRIVERS_THERMAL_TEGRA_SOCTHERM_H\ndrivers/thermal/tegra/soctherm.h-18-\n"
}

gemini-3.8-flash

null

null

							input: 7635
							output: 35
							thoughts: 15
						

Okay, here's my take on those thoughts, tailored for an expert audience:

**Kernel Configuration Hunting**

Alright, let's dive in. My immediate thought is to zero in on the thermal configuration for Tegra devices. So, I need to start poking around in the kernel's Kconfig files. Specifically, I'm going to navigate to `drivers/thermal/tegra/Kconfig`. That's the logical place to begin digging for the relevant thermal management options, features, and dependencies for the Tegra platform. I need to understand what's enabled, disabled, what variables I can manipulate, and where these settings are tied to other sub-systems. This is the starting point for exploring thermal regulation on the target platform.

{
  "File": "drivers/thermal/tegra/Kconfig",
  "FirstLine": 1,
  "LineCount": 40
}

{
  "Contents": "   1:\t# SPDX-License-Identifier: GPL-2.0-only\n   2:\tmenu \"NVIDIA Tegra thermal drivers\"\n   3:\tdepends on ARCH_TEGRA || COMPILE_TEST\n   4:\t\n   5:\tconfig TEGRA_SOCTHERM\n   6:\t\ttristate \"Tegra SOCTHERM thermal management\"\n   7:\t\thelp\n   8:\t\t  Enable this option for integrated thermal management support on NVIDIA\n   9:\t\t  Tegra systems-on-chip. The driver supports four thermal zones\n  10:\t\t  (CPU, GPU, MEM, PLLX). Cooling devices can be bound to the thermal\n  11:\t\t  zones to manage temperatures. This option is also required for the\n  12:\t\t  emergency thermal reset (thermtrip) feature to function.\n  13:\t\n  14:\tconfig TEGRA_BPMP_THERMAL\n  15:\t\ttristate \"Tegra BPMP thermal sensing\"\n  16:\t\tdepends on TEGRA_BPMP || COMPILE_TEST\n  17:\t\thelp\n  18:\t\t  Enable this option for support for sensing system temperature of NVIDIA\n  19:\t\t  Tegra systems-on-chip with the BPMP coprocessor (Tegra186).\n  20:\t\n  21:\tconfig TEGRA30_TSENSOR\n  22:\t\ttristate \"Tegra30 Thermal Sensor\"\n  23:\t\tdepends on ARCH_TEGRA_3x_SOC || COMPILE_TEST\n  24:\t\thelp\n  25:\t\t  Enable this option to support thermal management of NVIDIA Tegra30\n  26:\t\t  system-on-chip.\n  27:\t\n  28:\tendmenu\n"
}

gemini-3.8-flash

null

null

							input: 8264
							output: 45
							thoughts: 43
						

Okay, let's dive into this `tegra-soctherm` instantiation. My initial thought is to figure out how this is set up. Is this going to be a platform driver? If so, I need to check the code in `drivers/thermal/tegra/soctherm.c`. I expect to find the driver registration and probe function there. That's the logical place to start digging for the core initialization sequence and how it's integrated with the rest of the thermal management framework. From there I can understand its relationships with device tree and any other supporting modules.

{
  "Expression": "module_platform_driver|platform_driver_register",
  "PathPrefixes": [
    "drivers/thermal/tegra/soctherm.c"
  ]
}

{
  "Output": "drivers/thermal/tegra/soctherm.c=2282=static struct platform_driver tegra_soctherm_driver = {\n--\ndrivers/thermal/tegra/soctherm.c-2290-};\ndrivers/thermal/tegra/soctherm.c:2291:module_platform_driver(tegra_soctherm_driver);\ndrivers/thermal/tegra/soctherm.c-2292-\n"
}

gemini-3.8-flash

null

null

							input: 8603
							output: 42
							thoughts: 32
						

Okay, here's my take on those thoughts, tailored for an expert audience, and written as if they were my own:

**Analyzing the Tegra SoC Thermal Driver**

Right, let's dive into this `tegra_soctherm_driver`. As a platform driver, I know I need to quickly ascertain how it's identifying the specific hardware it's meant to manage. So, the first thing I'm going to look at is that `of_device_id` match table. I need to understand what device tree nodes this driver is claiming to be responsible for. Is it based on a compatible string match? Are there any specific properties it's looking for? This match table is going to tell the story of the devices supported, the hardware variants it's been designed for, and give me a quick window into its expected configuration. It's the starting point for really digging into how this thing functions. Let's see what we've got.

{
  "File": "drivers/thermal/tegra/soctherm.c",
  "FirstLine": 2260,
  "LineCount": 35
}

{
  "Contents": "2260:\t\t\treturn err;\n2261:\t\t}\n2262:\t\n2263:\t\tsoctherm_init(pdev);\n2264:\t\n2265:\t\tfor (i = 0; i \u003c soc-\u003enum_ttgs; ++i) {\n2266:\t\t\tstruct thermal_zone_device *tz;\n2267:\t\n2268:\t\t\ttz = tegra-\u003ethermctl_tzs[soc-\u003ettgs[i]-\u003eid];\n2269:\t\t\terr = tegra_soctherm_set_hwtrips(dev, soc-\u003ettgs[i], tz);\n2270:\t\t\tif (err) {\n2271:\t\t\t\tdev_err(\u0026pdev-\u003edev,\n2272:\t\t\t\t\t\"Resume failed: set hwtrips failed\\n\");\n2273:\t\t\t\treturn err;\n2274:\t\t\t}\n2275:\t\t}\n2276:\t\n2277:\t\treturn 0;\n2278:\t}\n2279:\t\n2280:\tstatic SIMPLE_DEV_PM_OPS(tegra_soctherm_pm, soctherm_suspend, soctherm_resume);\n2281:\t\n2282:\tstatic struct platform_driver tegra_soctherm_driver = {\n2283:\t\t.probe = tegra_soctherm_probe,\n2284:\t\t.remove = tegra_soctherm_remove,\n2285:\t\t.driver = {\n2286:\t\t\t.name = \"tegra_soctherm\",\n2287:\t\t\t.pm = \u0026tegra_soctherm_pm,\n2288:\t\t\t.of_match_table = tegra_soctherm_of_match,\n2289:\t\t},\n2290:\t};\n2291:\tmodule_platform_driver(tegra_soctherm_driver);\n2292:\t\n2293:\tMODULE_AUTHOR(\"Mikko Perttunen \u003cmperttunen@nvidia.com\u003e\");\n2294:\tMODULE_DESCRIPTION(\"NVIDIA Tegra SOCTHERM thermal management driver\");\n"
}

gemini-3.8-flash

null

null

							input: 9444
							output: 45
							thoughts: 17
						

Okay, here's my attempt at summarizing that thought process, tailored for an expert audience:

**Checking `tegra_soctherm_of_match`**

Right, let's dive into this. I'm going to quickly check `tegra_soctherm_of_match`. It's pretty straightforward, but I want to be certain about its implications. Need to be sure it's the right place to start debugging the thermal regulation on this Tegra system. Gotta make sure the device tree binding is correct, and that we have the proper match to the thermal driver. Let's make sure there isn't some obscure override or quirk in another part of the code that's going to bite us later. Just want to confirm that the `of_match` table is doing its job and selecting the right thermal control algorithm. Okay, let's see what we've got. Should be simple, but always good to confirm assumptions up front. Time to verify.

{
  "Expression": "tegra_soctherm_of_match",
  "PathPrefixes": [
    "drivers/thermal/tegra/soctherm.c"
  ]
}

{
  "Output": "drivers/thermal/tegra/soctherm.c=2029=static void soctherm_init(struct platform_device *pdev)\n--\ndrivers/thermal/tegra/soctherm.c-2059-\ndrivers/thermal/tegra/soctherm.c:2060:static const struct of_device_id tegra_soctherm_of_match[] = {\ndrivers/thermal/tegra/soctherm.c-2061-#ifdef CONFIG_ARCH_TEGRA_114_SOC\n--\ndrivers/thermal/tegra/soctherm.c-2086-};\ndrivers/thermal/tegra/soctherm.c:2087:MODULE_DEVICE_TABLE(of, tegra_soctherm_of_match);\ndrivers/thermal/tegra/soctherm.c-2088-\ndrivers/thermal/tegra/soctherm.c=2089=static int tegra_soctherm_probe(struct platform_device *pdev)\n--\ndrivers/thermal/tegra/soctherm.c-2098-\ndrivers/thermal/tegra/soctherm.c:2099:\tmatch = of_match_node(tegra_soctherm_of_match, pdev-\u003edev.of_node);\ndrivers/thermal/tegra/soctherm.c-2100-\tif (!match)\n--\ndrivers/thermal/tegra/soctherm.c=2282=static struct platform_driver tegra_soctherm_driver = {\n--\ndrivers/thermal/tegra/soctherm.c-2287-\t\t.pm = \u0026tegra_soctherm_pm,\ndrivers/thermal/tegra/soctherm.c:2288:\t\t.of_match_table = tegra_soctherm_of_match,\ndrivers/thermal/tegra/soctherm.c-2289-\t},\n"
}

gemini-3.8-flash

null

null

							input: 10218
							output: 42
							thoughts: 29
						

Okay, here's my interpretation of those thoughts, tailored for an expert audience, presented in the first person:

**Diving into Tegra SoCTherm Initialization**

Alright, let's get down to brass tacks. I need to take a look at how this `tegra_soctherm` driver kicks off, and the first things that catch my eye are the `tegra_soctherm_probe` and `tegra_soctherm_of_match` functions. Naturally, I want to understand how the system identifies the device and then sets it up. I’m thinking about the standard driver probe flow – how the device tree data is parsed, how the hardware resources are mapped, and what initializations are performed based on that. I'm assuming that the `of_match` will likely contain the specific device IDs and compatible strings used for matching the Tegra SoCTherm devices in the device tree. Then the probe function itself is where the real work happens – resource allocation, clocking, interrupts, and setting up the control structures. I need to scrutinize these functions to fully grasp the SoCTherm architecture and ensure proper integration within my system.

{
  "File": "drivers/thermal/tegra/soctherm.c",
  "FirstLine": 2058,
  "LineCount": 45
}

{
  "Contents": "2058:\t}\n2059:\t\n2060:\tstatic const struct of_device_id tegra_soctherm_of_match[] = {\n2061:\t#ifdef CONFIG_ARCH_TEGRA_114_SOC\n2062:\t\t{\n2063:\t\t\t.compatible = \"nvidia,tegra114-soctherm\",\n2064:\t\t\t.data = \u0026tegra114_soctherm,\n2065:\t\t},\n2066:\t#endif\n2067:\t#ifdef CONFIG_ARCH_TEGRA_124_SOC\n2068:\t\t{\n2069:\t\t\t.compatible = \"nvidia,tegra124-soctherm\",\n2070:\t\t\t.data = \u0026tegra124_soctherm,\n2071:\t\t},\n2072:\t#endif\n2073:\t#ifdef CONFIG_ARCH_TEGRA_132_SOC\n2074:\t\t{\n2075:\t\t\t.compatible = \"nvidia,tegra132-soctherm\",\n2076:\t\t\t.data = \u0026tegra132_soctherm,\n2077:\t\t},\n2078:\t#endif\n2079:\t#ifdef CONFIG_ARCH_TEGRA_210_SOC\n2080:\t\t{\n2081:\t\t\t.compatible = \"nvidia,tegra210-soctherm\",\n2082:\t\t\t.data = \u0026tegra210_soctherm,\n2083:\t\t},\n2084:\t#endif\n2085:\t\t{ },\n2086:\t};\n2087:\tMODULE_DEVICE_TABLE(of, tegra_soctherm_of_match);\n2088:\t\n2089:\tstatic int tegra_soctherm_probe(struct platform_device *pdev)\n2090:\t{\n2091:\t\tconst struct of_device_id *match;\n2092:\t\tstruct tegra_soctherm *tegra;\n2093:\t\tstruct thermal_zone_device *z;\n2094:\t\tstruct tsensor_shared_calib shared_calib;\n2095:\t\tstruct tegra_soctherm_soc *soc;\n2096:\t\tunsigned int i;\n2097:\t\tint err;\n2098:\t\n2099:\t\tmatch = of_match_node(tegra_soctherm_of_match, pdev-\u003edev.of_node);\n2100:\t\tif (!match)\n2101:\t\t\treturn -ENODEV;\n2102:\t\n"
}

gemini-3.8-flash

null

null

							input: 11238
							output: 24
							thoughts: 123
						

**Investigating Tegra Thermal Driver Reachability**

Wait a minute! My initial assumption about the Tegra thermal driver's availability on `amd64` needs immediate checking. It doesn't seem right. Let me look at the `tegra_soctherm_of_match` structure within the code.

Okay, I see a series of `#ifdef CONFIG_ARCH_TEGRA_..._SOC` conditional compilation blocks. So, the inclusion of this driver appears to be architecture-specific, based on those preprocessor definitions. I see blocks for `TEGRA_114`, `TEGRA_124`, `TEGRA_132`, and `TEGRA_210`. The question is: Where are these `CONFIG_ARCH_TEGRA_*` macros defined? That's the key to understanding if this driver even *can* be compiled for a platform other than Tegra. I need to track down the definition of those macros next.

{
  "Expression": "ARCH_TEGRA_114_SOC"
}

{
  "Output": "arch/arm/boot/dts/nvidia/Makefile-1-# SPDX-License-Identifier: GPL-2.0\narch/arm/boot/dts/nvidia/Makefile:2:dtb-$(CONFIG_ARCH_TEGRA_114_SOC) += \\\narch/arm/boot/dts/nvidia/Makefile-3-\ttegra114-asus-tf701t.dtb \\\n--\narch/arm/mach-tegra/Makefile=14=obj-$(CONFIG_HOTPLUG_CPU)               += hotplug.o\narch/arm/mach-tegra/Makefile-15-\narch/arm/mach-tegra/Makefile:16:obj-$(CONFIG_ARCH_TEGRA_114_SOC)\t+= pm-tegra30.o\narch/arm/mach-tegra/Makefile-17-obj-$(CONFIG_ARCH_TEGRA_124_SOC)\t+= pm-tegra30.o\n--\narch/arm/mach-tegra/hotplug.c=55=static int __init tegra_hotplug_init(void)\n--\narch/arm/mach-tegra/hotplug.c-66-\t\ttegra_hotplug_shutdown = tegra30_hotplug_shutdown;\narch/arm/mach-tegra/hotplug.c:67:\tif (IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) \u0026\u0026 tegra_get_chip_id() == TEGRA114)\narch/arm/mach-tegra/hotplug.c-68-\t\ttegra_hotplug_shutdown = tegra30_hotplug_shutdown;\n--\narch/arm/mach-tegra/platsmp.c=158=static int tegra_boot_secondary(unsigned int cpu,\n--\narch/arm/mach-tegra/platsmp.c-164-\t\treturn tegra30_boot_secondary(cpu, idle);\narch/arm/mach-tegra/platsmp.c:165:\tif (IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) \u0026\u0026 tegra_get_chip_id() == TEGRA114)\narch/arm/mach-tegra/platsmp.c-166-\t\treturn tegra114_boot_secondary(cpu, idle);\n--\narch/arm/mach-tegra/pm.c=48=static void tegra_tear_down_cpu_init(void)\n--\narch/arm/mach-tegra/pm.c-58-\t\tif (IS_ENABLED(CONFIG_ARCH_TEGRA_3x_SOC) ||\narch/arm/mach-tegra/pm.c:59:\t\t    IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) ||\narch/arm/mach-tegra/pm.c-60-\t\t    IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC))\n--\narch/arm/mach-tegra/pm.c=264=static bool tegra_lp1_iram_hook(void)\n--\narch/arm/mach-tegra/pm.c-274-\t\tif (IS_ENABLED(CONFIG_ARCH_TEGRA_3x_SOC) ||\narch/arm/mach-tegra/pm.c:275:\t\t    IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) ||\narch/arm/mach-tegra/pm.c-276-\t\t    IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC))\n--\narch/arm/mach-tegra/pm.c=294=static bool tegra_sleep_core_init(void)\n--\narch/arm/mach-tegra/pm.c-304-\t\tif (IS_ENABLED(CONFIG_ARCH_TEGRA_3x_SOC) ||\narch/arm/mach-tegra/pm.c:305:\t\t    IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) ||\narch/arm/mach-tegra/pm.c-306-\t\t    IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC))\n--\ndrivers/clk/tegra/Kconfig=6=config TEGRA_CLK_DFLL\ndrivers/clk/tegra/Kconfig:7:\tdepends on ARCH_TEGRA_114_SOC || ARCH_TEGRA_124_SOC || ARCH_TEGRA_210_SOC\ndrivers/clk/tegra/Kconfig-8-\tselect PM_OPP\n--\ndrivers/clk/tegra/Makefile=22=obj-$(CONFIG_ARCH_TEGRA_3x_SOC)\t\t+= clk-tegra20-emc.o\ndrivers/clk/tegra/Makefile:23:obj-$(CONFIG_ARCH_TEGRA_114_SOC)\t+= clk-tegra114.o\ndrivers/clk/tegra/Makefile-24-obj-$(CONFIG_ARCH_TEGRA_124_SOC)\t+= clk-tegra124.o\n--\ndrivers/clk/tegra/clk-pll.c=1226=static int _calc_dynamic_ramp_rate(struct clk_hw *hw,\n--\ndrivers/clk/tegra/clk-pll.c-1254-\ndrivers/clk/tegra/clk-pll.c:1255:#if defined(CONFIG_ARCH_TEGRA_114_SOC) || \\\ndrivers/clk/tegra/clk-pll.c-1256-\tdefined(CONFIG_ARCH_TEGRA_124_SOC) || \\\n--\ndrivers/clk/tegra/clk-pll.c=1987=struct clk *tegra_clk_register_pllu(const char *name, const char *parent_name,\n--\ndrivers/clk/tegra/clk-pll.c-2007-\ndrivers/clk/tegra/clk-pll.c:2008:#if defined(CONFIG_ARCH_TEGRA_114_SOC) || \\\ndrivers/clk/tegra/clk-pll.c-2009-\tdefined(CONFIG_ARCH_TEGRA_124_SOC) || \\\n--\ndrivers/clk/tegra/clk-tegra-super-gen4.c=165=static void __init tegra_super_clk_init(void __iomem *clk_base,\n--\ndrivers/clk/tegra/clk-tegra-super-gen4.c-222-\ndrivers/clk/tegra/clk-tegra-super-gen4.c:223:#if defined(CONFIG_ARCH_TEGRA_114_SOC) || \\\ndrivers/clk/tegra/clk-tegra-super-gen4.c-224-    defined(CONFIG_ARCH_TEGRA_124_SOC) || \\\n--\ndrivers/devfreq/Kconfig=121=config ARM_TEGRA_DEVFREQ\ndrivers/devfreq/Kconfig-122-\ttristate \"NVIDIA Tegra30/114/124/210 DEVFREQ Driver\"\ndrivers/devfreq/Kconfig:123:\tdepends on ARCH_TEGRA_3x_SOC || ARCH_TEGRA_114_SOC || \\\ndrivers/devfreq/Kconfig-124-\t\tARCH_TEGRA_132_SOC || ARCH_TEGRA_124_SOC || \\\n--\ndrivers/memory/tegra/Kconfig=40=config TEGRA114_EMC\ndrivers/memory/tegra/Kconfig-41-\ttristate \"NVIDIA Tegra114 External Memory Controller driver\"\ndrivers/memory/tegra/Kconfig:42:\tdefault ARCH_TEGRA_114_SOC\ndrivers/memory/tegra/Kconfig:43:\tdepends on ARCH_TEGRA_114_SOC || COMPILE_TEST\ndrivers/memory/tegra/Kconfig-44-\tselect TEGRA124_CLK_EMC if ARCH_TEGRA\n--\ndrivers/memory/tegra/Makefile=5=tegra-mc-$(CONFIG_ARCH_TEGRA_3x_SOC)  += tegra30.o\ndrivers/memory/tegra/Makefile:6:tegra-mc-$(CONFIG_ARCH_TEGRA_114_SOC) += tegra114.o\ndrivers/memory/tegra/Makefile-7-tegra-mc-$(CONFIG_ARCH_TEGRA_124_SOC) += tegra124.o\n--\ndrivers/memory/tegra/mc.c=30=static const struct of_device_id tegra_mc_of_match[] = {\n--\ndrivers/memory/tegra/mc.c-36-#endif\ndrivers/memory/tegra/mc.c:37:#ifdef CONFIG_ARCH_TEGRA_114_SOC\ndrivers/memory/tegra/mc.c-38-\t{ .compatible = \"nvidia,tegra114-mc\", .data = \u0026tegra114_mc_soc },\n--\ndrivers/memory/tegra/mc.c=410=const irq_handler_t tegra30_mc_irq_handlers[] = {\n--\ndrivers/memory/tegra/mc.c-414-#if defined(CONFIG_ARCH_TEGRA_3x_SOC) || \\\ndrivers/memory/tegra/mc.c:415:    defined(CONFIG_ARCH_TEGRA_114_SOC) || \\\ndrivers/memory/tegra/mc.c-416-    defined(CONFIG_ARCH_TEGRA_124_SOC) || \\\n--\ndrivers/memory/tegra/mc.h=249=extern const struct tegra_mc_soc tegra30_mc_soc;\n--\ndrivers/memory/tegra/mc.h-251-\ndrivers/memory/tegra/mc.h:252:#ifdef CONFIG_ARCH_TEGRA_114_SOC\ndrivers/memory/tegra/mc.h-253-extern const struct tegra_mc_soc tegra114_mc_soc;\n--\ndrivers/memory/tegra/mc.h=289=extern const struct tegra_mc_soc tegra264_mc_soc;\n--\ndrivers/memory/tegra/mc.h-292-#if defined(CONFIG_ARCH_TEGRA_3x_SOC) || \\\ndrivers/memory/tegra/mc.h:293:    defined(CONFIG_ARCH_TEGRA_114_SOC) || \\\ndrivers/memory/tegra/mc.h-294-    defined(CONFIG_ARCH_TEGRA_124_SOC) || \\\n--\ndrivers/soc/tegra/Kconfig=25=config ARCH_TEGRA_3x_SOC\n--\ndrivers/soc/tegra/Kconfig-39-\ndrivers/soc/tegra/Kconfig:40:config ARCH_TEGRA_114_SOC\ndrivers/soc/tegra/Kconfig-41-\tbool \"Enable support for Tegra114 family\"\n--\ndrivers/soc/tegra/fuse/Makefile=7=obj-$(CONFIG_ARCH_TEGRA_3x_SOC)\t\t+= speedo-tegra30.o\ndrivers/soc/tegra/fuse/Makefile:8:obj-$(CONFIG_ARCH_TEGRA_114_SOC)\t+= speedo-tegra114.o\ndrivers/soc/tegra/fuse/Makefile-9-obj-$(CONFIG_ARCH_TEGRA_124_SOC)\t+= speedo-tegra124.o\n--\ndrivers/soc/tegra/fuse/fuse-tegra.c=68=static const struct of_device_id tegra_fuse_match[] = {\n--\ndrivers/soc/tegra/fuse/fuse-tegra.c-89-#endif\ndrivers/soc/tegra/fuse/fuse-tegra.c:90:#ifdef CONFIG_ARCH_TEGRA_114_SOC\ndrivers/soc/tegra/fuse/fuse-tegra.c-91-\t{ .compatible = \"nvidia,tegra114-efuse\", .data = \u0026tegra114_fuse_soc },\n--\ndrivers/soc/tegra/fuse/fuse-tegra.c=485=static int __init tegra_init_fuse(void)\n--\ndrivers/soc/tegra/fuse/fuse-tegra.c-523-\ndrivers/soc/tegra/fuse/fuse-tegra.c:524:#ifdef CONFIG_ARCH_TEGRA_114_SOC\ndrivers/soc/tegra/fuse/fuse-tegra.c-525-\t\t\tcase TEGRA114:\n--\ndrivers/soc/tegra/fuse/fuse-tegra30.c-34-#if defined(CONFIG_ARCH_TEGRA_3x_SOC) || \\\ndrivers/soc/tegra/fuse/fuse-tegra30.c:35:    defined(CONFIG_ARCH_TEGRA_114_SOC) || \\\ndrivers/soc/tegra/fuse/fuse-tegra30.c-36-    defined(CONFIG_ARCH_TEGRA_124_SOC) || \\\n--\ndrivers/soc/tegra/fuse/fuse-tegra30.c=87=const struct tegra_fuse_soc tegra30_fuse_soc = {\n--\ndrivers/soc/tegra/fuse/fuse-tegra30.c-95-\ndrivers/soc/tegra/fuse/fuse-tegra30.c:96:#ifdef CONFIG_ARCH_TEGRA_114_SOC\ndrivers/soc/tegra/fuse/fuse-tegra30.c-97-static const struct nvmem_cell_info tegra114_fuse_cells[] = {\n--\ndrivers/soc/tegra/fuse/fuse.h=87=void tegra30_init_speedo_data(struct tegra_sku_info *sku_info);\n--\ndrivers/soc/tegra/fuse/fuse.h-89-\ndrivers/soc/tegra/fuse/fuse.h:90:#ifdef CONFIG_ARCH_TEGRA_114_SOC\ndrivers/soc/tegra/fuse/fuse.h-91-void tegra114_init_speedo_data(struct tegra_sku_info *sku_info);\n--\ndrivers/soc/tegra/fuse/fuse.h=107=extern const struct tegra_fuse_soc tegra30_fuse_soc;\n--\ndrivers/soc/tegra/fuse/fuse.h-109-\ndrivers/soc/tegra/fuse/fuse.h:110:#ifdef CONFIG_ARCH_TEGRA_114_SOC\ndrivers/soc/tegra/fuse/fuse.h-111-extern const struct tegra_fuse_soc tegra114_fuse_soc;\n--\ndrivers/thermal/tegra/Makefile=6=tegra-soctherm-y\t\t\t\t:= soctherm.o soctherm-fuse.o\ndrivers/thermal/tegra/Makefile:7:tegra-soctherm-$(CONFIG_ARCH_TEGRA_114_SOC)\t+= tegra114-soctherm.o\ndrivers/thermal/tegra/Makefile-8-tegra-soctherm-$(CONFIG_ARCH_TEGRA_124_SOC)\t+= tegra124-soctherm.o\n--\ndrivers/thermal/tegra/soctherm.c=2060=static const struct of_device_id tegra_soctherm_of_match[] = {\ndrivers/thermal/tegra/soctherm.c:2061:#ifdef CONFIG_ARCH_TEGRA_114_SOC\ndrivers/thermal/tegra/soctherm.c-2062-\t{\n--\ndrivers/thermal/tegra/soctherm.h=147=int tegra_calc_tsensor_calib(const struct tegra_tsensor *sensor,\n--\ndrivers/thermal/tegra/soctherm.h-150-\ndrivers/thermal/tegra/soctherm.h:151:#ifdef CONFIG_ARCH_TEGRA_114_SOC\ndrivers/thermal/tegra/soctherm.h-152-extern const struct tegra_soctherm_soc tegra114_soctherm;\n"
}

gemini-3.8-flash

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							input: 15574
							output: 35
							thoughts: 39
						

Okay, here's my take on those thoughts, tailored for an expert audience:

**Investigating Tegra SoC Configuration Dependencies**

Alright, let's dive in. My immediate thought is to check the `drivers/soc/tegra/Kconfig` file. That's the logical place to find the dependencies and build options for the Tegra system-on-chip support within the kernel. Specifically, I'm after the interrelationships of `ARCH_TEGRA_114_SOC` and `ARCH_TEGRA`. I need to understand if `ARCH_TEGRA_114_SOC` is a sub-option of, or dependent upon, `ARCH_TEGRA`, or if they are separate but potentially related branches in the SoC configuration tree. Knowing this is critical to ensure proper build configuration and target the correct Tegra hardware. I have a feeling the answer lies in understanding the Kconfig logic.

{
  "File": "drivers/soc/tegra/Kconfig",
  "FirstLine": 1,
  "LineCount": 55
}

{
  "Contents": "   1:\t# SPDX-License-Identifier: GPL-2.0-only\n   2:\tif ARCH_TEGRA\n   3:\t\n   4:\t# 32-bit ARM SoCs\n   5:\tif ARM\n   6:\t\n   7:\tconfig ARCH_TEGRA_2x_SOC\n   8:\t\tbool \"Enable support for Tegra20 family\"\n   9:\t\tdefault ARCH_TEGRA\n  10:\t\tselect ARCH_NEEDS_CPU_IDLE_COUPLED if SMP\n  11:\t\tselect ARM_ERRATA_720789\n  12:\t\tselect ARM_ERRATA_754327 if SMP\n  13:\t\tselect ARM_ERRATA_764369 if SMP\n  14:\t\tselect PINCTRL_TEGRA20\n  15:\t\tselect PL310_ERRATA_727915 if CACHE_L2X0\n  16:\t\tselect PL310_ERRATA_769419 if CACHE_L2X0\n  17:\t\tselect SOC_TEGRA_FLOWCTRL\n  18:\t\tselect SOC_TEGRA_PMC\n  19:\t\tselect SOC_TEGRA20_VOLTAGE_COUPLER if REGULATOR\n  20:\t\tselect TEGRA_TIMER\n  21:\t\thelp\n  22:\t\t  Support for NVIDIA Tegra AP20 and T20 processors, based on the\n  23:\t\t  ARM CortexA9MP CPU and the ARM PL310 L2 cache controller\n  24:\t\n  25:\tconfig ARCH_TEGRA_3x_SOC\n  26:\t\tbool \"Enable support for Tegra30 family\"\n  27:\t\tdefault ARCH_TEGRA\n  28:\t\tselect ARM_ERRATA_754322\n  29:\t\tselect ARM_ERRATA_764369 if SMP\n  30:\t\tselect PINCTRL_TEGRA30\n  31:\t\tselect PL310_ERRATA_769419 if CACHE_L2X0\n  32:\t\tselect SOC_TEGRA_FLOWCTRL\n  33:\t\tselect SOC_TEGRA_PMC\n  34:\t\tselect SOC_TEGRA30_VOLTAGE_COUPLER if REGULATOR\n  35:\t\tselect TEGRA_TIMER\n  36:\t\thelp\n  37:\t\t  Support for NVIDIA Tegra T30 processor family, based on the\n  38:\t\t  ARM CortexA9MP CPU and the ARM PL310 L2 cache controller\n  39:\t\n  40:\tconfig ARCH_TEGRA_114_SOC\n  41:\t\tbool \"Enable support for Tegra114 family\"\n  42:\t\tdefault ARCH_TEGRA\n  43:\t\tselect ARM_ERRATA_798181 if SMP\n  44:\t\tselect HAVE_ARM_ARCH_TIMER\n  45:\t\tselect PINCTRL_TEGRA114\n  46:\t\tselect SOC_TEGRA_FLOWCTRL\n  47:\t\tselect SOC_TEGRA_PMC\n  48:\t\tselect TEGRA_TIMER\n  49:\t\thelp\n  50:\t\t  Support for NVIDIA Tegra T114 processor family, based on the\n  51:\t\t  ARM CortexA15MP CPU\n  52:\t\n  53:\tconfig ARCH_TEGRA_124_SOC\n  54:\t\tbool \"Enable support for Tegra124 family\"\n  55:\t\tdefault ARCH_TEGRA\n"
}

gemini-3.8-flash

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							input: 16703
							output: 21
							thoughts: 69
						

Here's my take on those thoughts:

**Navigating the Tegra Kernel Configuration**

Okay, let's dive into this `drivers/soc/tegra/Kconfig` file. I see a conditional statement there: `if ARCH_TEGRA`. Right, that's expected. We're looking at a Tegra-specific configuration. And then, nested within that, there's another condition: `if ARM`. Makes sense; it's targeting 32-bit ARM SoCs. Fine, all as expected so far. And a specific configuration for a `ARCH_TEGRA_114_SOC` exists.

But wait a minute... where *exactly* is `ARCH_TEGRA` defined? I need to know under what circumstances it's considered valid. Gotta find the definition for `ARCH_TEGRA` to understand the whole picture. Time to track it down. Gotta understand the conditional logic, otherwise I'm just guessing! Let's go digging.

{
  "Expression": "config ARCH_TEGRA\\b"
}

{
  "Output": "arch/arm/mach-tegra/Kconfig-1-# SPDX-License-Identifier: GPL-2.0\narch/arm/mach-tegra/Kconfig:2:menuconfig ARCH_TEGRA\narch/arm/mach-tegra/Kconfig-3-\tbool \"NVIDIA Tegra\"\n--\narch/arm64/Kconfig.platforms=402=config ARCH_SYNQUACER\n--\narch/arm64/Kconfig.platforms-405-\narch/arm64/Kconfig.platforms:406:config ARCH_TEGRA\narch/arm64/Kconfig.platforms-407-\tbool \"NVIDIA Tegra SoC Family\"\n"
}

gemini-3.8-flash

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							input: 17175
							output: 36
							thoughts: 382
						

**Investigating the Potential for Unexpected Compilation**

Okay, so I'm looking at this configuration situation, and it seems like `ARCH_TEGRA` is *only* defined within `arch/arm/mach-tegra/Kconfig` and `arch/arm64/Kconfig.platforms`. And further, `ARCH_TEGRA_114_SOC` is strictly conditional; it's only enabled under the `ARCH_TEGRA` and `ARM` conditions. Now, the target architecture is `amd64`, which immediately raises a flag: could `CONFIG_TEGRA_SOCTHERM` be enabled on `amd64` somehow, perhaps via `COMPILE_TEST`?

Let me investigate. The thermal drivers are potentially compiled with `COMPILE_TEST`. Looking at `drivers/thermal/tegra/Kconfig`, I see:

Aha! So, on `amd64` with `COMPILE_TEST` enabled, it *is* possible that `TEGRA_SOCTHERM` is compiled. But that's just the compilation; what about execution?

The critical question now is whether `CONFIG_ARCH_TEGRA_114_SOC` would be set on `amd64` if `COMPILE_TEST` is enabled. It shouldn't be, because `CONFIG_ARCH_TEGRA_114_SOC` is:

So, on `amd64`, `ARCH_TEGRA` is false and `ARM` is also false. Even with `COMPILE_TEST` turned on, `ARCH_TEGRA_114_SOC` can't be set!

But what about other Tegra SoCs? Let's check `drivers/soc/tegra/Kconfig` for the other architectures, like Tegra124/132/210.

{
  "File": "drivers/soc/tegra/Kconfig",
  "FirstLine": 50,
  "LineCount": 50
}

{
  "Contents": "  50:\t\t  Support for NVIDIA Tegra T114 processor family, based on the\n  51:\t\t  ARM CortexA15MP CPU\n  52:\t\n  53:\tconfig ARCH_TEGRA_124_SOC\n  54:\t\tbool \"Enable support for Tegra124 family\"\n  55:\t\tdefault ARCH_TEGRA\n  56:\t\tselect HAVE_ARM_ARCH_TIMER\n  57:\t\tselect PINCTRL_TEGRA124\n  58:\t\tselect SOC_TEGRA_FLOWCTRL\n  59:\t\tselect SOC_TEGRA_PMC\n  60:\t\tselect TEGRA_TIMER\n  61:\t\thelp\n  62:\t\t  Support for NVIDIA Tegra T124 processor family, based on the\n  63:\t\t  ARM CortexA15MP CPU\n  64:\t\n  65:\tendif\n  66:\t\n  67:\t# 64-bit ARM SoCs\n  68:\tif ARM64\n  69:\t\n  70:\tconfig ARCH_TEGRA_132_SOC\n  71:\t\tbool \"NVIDIA Tegra132 SoC\"\n  72:\t\tdefault ARCH_TEGRA\n  73:\t\tselect PINCTRL_TEGRA124\n  74:\t\tselect SOC_TEGRA_FLOWCTRL\n  75:\t\tselect SOC_TEGRA_PMC\n  76:\t\thelp\n  77:\t\t  Enable support for NVIDIA Tegra132 SoC, based on the Denver\n  78:\t\t  ARMv8 CPU.  The Tegra132 SoC is similar to the Tegra124 SoC,\n  79:\t\t  but contains an NVIDIA Denver CPU complex in place of\n  80:\t\t  Tegra124's \"4+1\" Cortex-A15 CPU complex.\n  81:\t\n  82:\tconfig ARCH_TEGRA_210_SOC\n  83:\t\tbool \"NVIDIA Tegra210 SoC\"\n  84:\t\tdefault ARCH_TEGRA\n  85:\t\tselect PINCTRL_TEGRA210\n  86:\t\tselect SOC_TEGRA_FLOWCTRL\n  87:\t\tselect SOC_TEGRA_PMC\n  88:\t\tselect TEGRA_TIMER\n  89:\t\thelp\n  90:\t\t  Enable support for the NVIDIA Tegra210 SoC. Also known as Tegra X1,\n  91:\t\t  the Tegra210 has four Cortex-A57 cores paired with four Cortex-A53\n  92:\t\t  cores in a switched configuration. It features a GPU of the Maxwell\n  93:\t\t  architecture with support for DX11, SM4, OpenGL 4.5, OpenGL ES 3.1\n  94:\t\t  and providing 256 CUDA cores. It supports hardware-accelerated en-\n  95:\t\t  and decoding of various video standards including H.265, H.264 and\n  96:\t\t  VP8 at 4K resolution and up to 60 fps.\n  97:\t\n  98:\t\t  Besides the multimedia features it also comes with a variety of I/O\n  99:\t\t  controllers, such as GPIO, I2C, SPI, SDHCI, PCIe, SATA and XHCI, to\n"
}

gemini-3.8-flash

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							input: 18786
							output: 38
							thoughts: 1131
						

**Analyzing the Impossibility of Tegra Thermal Drivers on amd64**

Okay, so I'm looking at this code and immediately see that none of the `ARCH_TEGRA_*_SOC` configurations can possibly be enabled on an amd64 system. The logic is pretty straightforward once you dig into `drivers/thermal/tegra/soctherm.c`. I see that the `tegra_soctherm_of_match` table, which is crucial for the driver's device matching, becomes effectively empty (`{ }`) if `ARCH_TEGRA` isn't defined. And of course, on amd64, it *can't* be defined. The code uses preprocessor directives (`#ifdef`) linked to those `CONFIG_ARCH_TEGRA_*_SOC` options, so even if I try to force a compile with `COMPILE_TEST`, the table will remain empty because those configurations simply won't be set.

This isn't just about a conditional compilation; it's fundamental to the architecture. The driver is designed to match on OF (Open Firmware) device tree compatible strings related to Tegra SoCs ("nvidia,tegra114-soctherm", etc.). It's a platform driver that is meant to run on Tegra, which is an ARM/ARM64 family. Furthermore, the instructions regarding unreachable hardware and code paths confirm that this driver is not intended for the target architecture, which is specifically amd64.

I need to confirm that Tegra can't be emulated on x86_64 in QEMU. That is correct, Tegra is only ARM/ARM64. The details of the driver itself cement this. For example, `tegra114-soctherm.c` is for Tegra 114 (an ARM 32-bit Cortex A15, to be precise). The `Makefile` confirms this further; `tegra114-soctherm.o` will *not* be compiled if `CONFIG_ARCH_TEGRA_114_SOC` isn't set. And guess what? `CONFIG_ARCH_TEGRA_114_SOC` depends on `ARCH_TEGRA` *and* `ARM`. Neither of those exist on amd64.

Even if I were to somehow force `CONFIG_TEGRA_SOCTHERM` to compile under `COMPILE_TEST`, `tegra114-soctherm.o` would still be excluded because `CONFIG_ARCH_TEGRA_114_SOC` would be unset. In `soctherm.c`, the `tegra_soctherm_of_match` table will be empty on amd64 because none of the `CONFIG_ARCH_TEGRA_*_SOC` configurations are defined. Plus, even if it *were* compiled, we're talking about a *physical* Tegra SoC, something that can't exist in a standard virtualized amd64 QEMU/GCE environment.

I need to quickly double-check that there aren't any sneaky references to `tegra_calc_shared_calib`, `tegra_calc_tsensor_calib`, `translate_temp`, or `tegra_soctherm` elsewhere in the codebase, just to be absolutely sure, but I'm confident that this path is structurally unreachable on amd64.

{
  "Expression": "tegra_calc_shared_calib|tegra_calc_tsensor_calib|translate_temp"
}

{
  "Output": "drivers/thermal/tegra/soctherm-fuse.c=66=static s64 div64_s64_precise(s64 a, s32 b)\n--\ndrivers/thermal/tegra/soctherm-fuse.c-76-\ndrivers/thermal/tegra/soctherm-fuse.c:77:int tegra_calc_shared_calib(const struct tegra_soctherm_fuse *tfuse,\ndrivers/thermal/tegra/soctherm-fuse.c-78-\t\t\t    struct tsensor_shared_calib *shared)\n--\ndrivers/thermal/tegra/soctherm-fuse.c-112-\ndrivers/thermal/tegra/soctherm-fuse.c:113:int tegra_calc_tsensor_calib(const struct tegra_tsensor *sensor,\ndrivers/thermal/tegra/soctherm-fuse.c-114-\t\t\t     const struct tsensor_shared_calib *shared,\n--\ndrivers/thermal/tegra/soctherm.c=392=static void enable_tsensor(struct tegra_soctherm *tegra, unsigned int i)\n--\ndrivers/thermal/tegra/soctherm.c-418- */\ndrivers/thermal/tegra/soctherm.c:419:static int translate_temp(const struct tegra_soctherm *ts, u16 val)\ndrivers/thermal/tegra/soctherm.c-420-{\n--\ndrivers/thermal/tegra/soctherm.c=434=static int tegra_thermctl_get_temp(struct thermal_zone_device *tz, int *out_temp)\n--\ndrivers/thermal/tegra/soctherm.c-440-\tval = REG_GET_MASK(val, zone-\u003esg-\u003esensor_temp_mask);\ndrivers/thermal/tegra/soctherm.c:441:\t*out_temp = translate_temp(zone-\u003ets, val);\ndrivers/thermal/tegra/soctherm.c-442-\n--\ndrivers/thermal/tegra/soctherm.c=1259=static int regs_show(struct seq_file *s, void *data)\n--\ndrivers/thermal/tegra/soctherm.c-1292-\t\tstate = REG_GET_MASK(r, SENSOR_STATUS1_TEMP_MASK);\ndrivers/thermal/tegra/soctherm.c:1293:\t\tseq_printf(s, \"%d) \", translate_temp(ts, state));\ndrivers/thermal/tegra/soctherm.c-1294-\n--\ndrivers/thermal/tegra/soctherm.c-1330-\tstate = REG_GET_MASK(r, SENSOR_TEMP1_CPU_TEMP_MASK);\ndrivers/thermal/tegra/soctherm.c:1331:\tseq_printf(s, \"Temperatures: CPU(%d) \", translate_temp(ts, state));\ndrivers/thermal/tegra/soctherm.c-1332-\tstate = REG_GET_MASK(r, SENSOR_TEMP1_GPU_TEMP_MASK);\ndrivers/thermal/tegra/soctherm.c:1333:\tseq_printf(s, \" GPU(%d) \", translate_temp(ts, state));\ndrivers/thermal/tegra/soctherm.c-1334-\tr = readl(ts-\u003eregs + SENSOR_TEMP2);\ndrivers/thermal/tegra/soctherm.c-1335-\tstate = REG_GET_MASK(r, SENSOR_TEMP2_PLLX_TEMP_MASK);\ndrivers/thermal/tegra/soctherm.c:1336:\tseq_printf(s, \" PLLX(%d) \", translate_temp(ts, state));\ndrivers/thermal/tegra/soctherm.c-1337-\tstate = REG_GET_MASK(r, SENSOR_TEMP2_MEM_TEMP_MASK);\ndrivers/thermal/tegra/soctherm.c:1338:\tseq_printf(s, \" MEM(%d)\\n\", translate_temp(ts, state));\ndrivers/thermal/tegra/soctherm.c-1339-\n--\ndrivers/thermal/tegra/soctherm.c=2089=static int tegra_soctherm_probe(struct platform_device *pdev)\n--\ndrivers/thermal/tegra/soctherm.c-2160-\t/* calculate shared calibration data */\ndrivers/thermal/tegra/soctherm.c:2161:\terr = tegra_calc_shared_calib(soc-\u003etfuse, \u0026shared_calib);\ndrivers/thermal/tegra/soctherm.c-2162-\tif (err)\n--\ndrivers/thermal/tegra/soctherm.c-2168-\tfor (i = 0; i \u003c soc-\u003enum_tsensors; ++i) {\ndrivers/thermal/tegra/soctherm.c:2169:\t\terr = tegra_calc_tsensor_calib(\u0026soc-\u003etsensors[i],\ndrivers/thermal/tegra/soctherm.c-2170-\t\t\t\t\t       \u0026shared_calib,\n--\ndrivers/thermal/tegra/soctherm.h=128=struct tegra_soctherm_soc {\n--\ndrivers/thermal/tegra/soctherm.h-144-\ndrivers/thermal/tegra/soctherm.h:145:int tegra_calc_shared_calib(const struct tegra_soctherm_fuse *tfuse,\ndrivers/thermal/tegra/soctherm.h-146-\t\t\t    struct tsensor_shared_calib *shared);\ndrivers/thermal/tegra/soctherm.h:147:int tegra_calc_tsensor_calib(const struct tegra_tsensor *sensor,\ndrivers/thermal/tegra/soctherm.h-148-\t\t\t     const struct tsensor_shared_calib *shared,\n"
}

gemini-3.8-flash

null

null

							input: 22216
							output: 125
							thoughts: 537
						

**My Assessment: Code Unreachability and Fuzzing Inapplicability on amd64**

Okay, let's break this down. My focus is entirely within `drivers/thermal/tegra/`, specifically the NVIDIA Tegra SoC thermal management driver. This is a very specific, platform-dependent area. The code I'm looking at has been modified to address thermal considerations, particularly for lower precision on Tegra114 SoCs, but this directly ties into the **Tegra** architecture, which is ARM/ARM64 based.

My target here is `amd64`, and the issue is clear: This modified code cannot and will not execute on that architecture. It's not a matter of a simple configuration flag; the entire conditional structure hinges on `ARCH_TEGRA`, which is *exclusively* defined for ARM and ARM64 platforms. The driver's `CONFIG_ARCH_TEGRA_*_SOC` options, necessary for this module to engage, are fundamentally tied to ARM. I can compile-test it, but there's no way this code actually runs on `amd64` using the standard environments available to me (i.e. QEMU and GCE which do not have the required physical Tegra hardware for this). This effectively translates to structurally unreachable hardware.

Given that, `WorthFuzzing` must be `false`. There's no point in trying to fuzz code that won't ever be executed in this setup. Consequently, both `EnableConfigs` and `FocusSymbols` should remain empty, as there are no relevant configurations or symbols to enable or focus on for this architecture.

The reasoning needs to be succinct, something like: "The patch modifies calibration and temperature calculation logic in the NVIDIA Tegra SOCTHERM driver (`drivers/thermal/tegra/`), specifically adding support for lower precision on Tegra114 SoCs. This driver is specific to ARM/ARM64 Tegra SoCs and requires physical Tegra hardware. On the target architecture (amd64), the SoC configurations cannot be enabled and the driver is structurally unreachable."

Let's do a quick sanity check to make sure my logic is sound:

*   `EnableConfigs`: `[]` (Makes perfect sense)
*   `FocusSymbols`: `[]` (Nothing to target)
*   `Reasoning`: (Concise, accurate, addresses the core issue of platform exclusivity)
*   `WorthFuzzing`: `false` (Unquestionably correct given the platform restrictions)

All good. Time to execute `set-results`.

{
  "EnableConfigs": [],
  "FocusSymbols": [],
  "Reasoning": "The patch modifies calibration and temperature translation logic in the NVIDIA Tegra SOCTHERM driver (drivers/thermal/tegra/), adding lower precision support for Tegra114 SoCs. This driver is specific to ARM/ARM64 Tegra SoCs and requires dedicated Tegra hardware not available in standard virtualized amd64 environments. On the target architecture (amd64), the SoC-specific configurations cannot be enabled and the driver is structurally unreachable.",
  "WorthFuzzing": false
}

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch modifies calibration and temperature translation logic in the NVIDIA Tegra SOCTHERM driver (drivers/thermal/tegra/), adding lower precision support for Tegra114 SoCs. This driver is specific to ARM/ARM64 Tegra SoCs and requires dedicated Tegra hardware not available in standard virtualized amd64 environments. On the target architecture (amd64), the SoC-specific configurations cannot be enabled and the driver is structurally unreachable.",
  "WorthFuzzing": false
}

{
  "WorthFuzzing": false
}

null