drivers/gpu/drm/i915/i915_perf_oa_regs.h
Source file repositories/reference/linux-study-clean/drivers/gpu/drm/i915/i915_perf_oa_regs.h
File Facts
- System
- Linux kernel
- Corpus path
drivers/gpu/drm/i915/i915_perf_oa_regs.h- Extension
.h- Size
- 8238 bytes
- Lines
- 216
- Domain
- Driver Families
- Bucket
- drivers/gpu
- Inferred role
- Driver Families: implementation source
- Status
- source implementation candidate
Why This File Exists
Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
Dependency Surface
i915_reg_defs.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#ifndef __INTEL_PERF_OA_REGS__
#define __INTEL_PERF_OA_REGS__
#include "i915_reg_defs.h"
#define GEN7_OACONTROL _MMIO(0x2360)
#define GEN7_OACONTROL_CTX_MASK 0xFFFFF000
#define GEN7_OACONTROL_TIMER_PERIOD_MASK 0x3F
#define GEN7_OACONTROL_TIMER_PERIOD_SHIFT 6
#define GEN7_OACONTROL_TIMER_ENABLE (1 << 5)
#define GEN7_OACONTROL_FORMAT_A13 (0 << 2)
#define GEN7_OACONTROL_FORMAT_A29 (1 << 2)
#define GEN7_OACONTROL_FORMAT_A13_B8_C8 (2 << 2)
#define GEN7_OACONTROL_FORMAT_A29_B8_C8 (3 << 2)
#define GEN7_OACONTROL_FORMAT_B4_C8 (4 << 2)
#define GEN7_OACONTROL_FORMAT_A45_B8_C8 (5 << 2)
#define GEN7_OACONTROL_FORMAT_B4_C8_A16 (6 << 2)
#define GEN7_OACONTROL_FORMAT_C4_B8 (7 << 2)
#define GEN7_OACONTROL_FORMAT_SHIFT 2
#define GEN7_OACONTROL_PER_CTX_ENABLE (1 << 1)
#define GEN7_OACONTROL_ENABLE (1 << 0)
#define GEN8_OACTXID _MMIO(0x2364)
#define GEN8_OA_DEBUG _MMIO(0x2B04)
#define GEN9_OA_DEBUG_DISABLE_CLK_RATIO_REPORTS (1 << 5)
#define GEN9_OA_DEBUG_INCLUDE_CLK_RATIO (1 << 6)
#define GEN9_OA_DEBUG_DISABLE_GO_1_0_REPORTS (1 << 2)
#define GEN9_OA_DEBUG_DISABLE_CTX_SWITCH_REPORTS (1 << 1)
#define GEN8_OACONTROL _MMIO(0x2B00)
#define GEN8_OA_REPORT_FORMAT_A12 (0 << 2)
#define GEN8_OA_REPORT_FORMAT_A12_B8_C8 (2 << 2)
#define GEN8_OA_REPORT_FORMAT_A36_B8_C8 (5 << 2)
#define GEN8_OA_REPORT_FORMAT_C4_B8 (7 << 2)
#define GEN8_OA_REPORT_FORMAT_SHIFT 2
#define GEN8_OA_SPECIFIC_CONTEXT_ENABLE (1 << 1)
#define GEN8_OA_COUNTER_ENABLE (1 << 0)
#define GEN8_OACTXCONTROL _MMIO(0x2360)
#define GEN8_OA_TIMER_PERIOD_MASK 0x3F
#define GEN8_OA_TIMER_PERIOD_SHIFT 2
#define GEN8_OA_TIMER_ENABLE (1 << 1)
#define GEN8_OA_COUNTER_RESUME (1 << 0)
#define GEN7_OABUFFER _MMIO(0x23B0) /* R/W */
#define GEN7_OABUFFER_OVERRUN_DISABLE (1 << 3)
#define GEN7_OABUFFER_EDGE_TRIGGER (1 << 2)
#define GEN7_OABUFFER_STOP_RESUME_ENABLE (1 << 1)
#define GEN7_OABUFFER_RESUME (1 << 0)
#define GEN8_OABUFFER_UDW _MMIO(0x23b4)
#define GEN8_OABUFFER _MMIO(0x2b14)
#define GEN8_OABUFFER_MEM_SELECT_GGTT (1 << 0) /* 0: PPGTT, 1: GGTT */
#define GEN7_OASTATUS1 _MMIO(0x2364)
#define GEN7_OASTATUS1_TAIL_MASK 0xffffffc0
#define GEN7_OASTATUS1_COUNTER_OVERFLOW (1 << 2)
#define GEN7_OASTATUS1_OABUFFER_OVERFLOW (1 << 1)
#define GEN7_OASTATUS1_REPORT_LOST (1 << 0)
#define GEN7_OASTATUS2 _MMIO(0x2368)
#define GEN7_OASTATUS2_HEAD_MASK 0xffffffc0
#define GEN7_OASTATUS2_MEM_SELECT_GGTT (1 << 0) /* 0: PPGTT, 1: GGTT */
#define GEN8_OASTATUS _MMIO(0x2b08)
#define GEN8_OASTATUS_TAIL_POINTER_WRAP (1 << 17)
#define GEN8_OASTATUS_HEAD_POINTER_WRAP (1 << 16)
#define GEN8_OASTATUS_OVERRUN_STATUS (1 << 3)
#define GEN8_OASTATUS_COUNTER_OVERFLOW (1 << 2)
#define GEN8_OASTATUS_OABUFFER_OVERFLOW (1 << 1)
#define GEN8_OASTATUS_REPORT_LOST (1 << 0)
#define GEN8_OAHEADPTR _MMIO(0x2B0C)
#define GEN8_OAHEADPTR_MASK 0xffffffc0
#define GEN8_OATAILPTR _MMIO(0x2B10)
#define GEN8_OATAILPTR_MASK 0xffffffc0
#define OABUFFER_SIZE_128K (0 << 3)
#define OABUFFER_SIZE_256K (1 << 3)
#define OABUFFER_SIZE_512K (2 << 3)
#define OABUFFER_SIZE_1M (3 << 3)
#define OABUFFER_SIZE_2M (4 << 3)
#define OABUFFER_SIZE_4M (5 << 3)
#define OABUFFER_SIZE_8M (6 << 3)
#define OABUFFER_SIZE_16M (7 << 3)
#define GEN12_OA_TLB_INV_CR _MMIO(0xceec)
/* Gen12 OAR unit */
Annotation
- Immediate include surface: `i915_reg_defs.h`.
- Atlas domain: Driver Families / drivers/gpu.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.