drivers/gpu/drm/i915/display/intel_dsb_regs.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/i915/display/intel_dsb_regs.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/i915/display/intel_dsb_regs.h
Extension
.h
Size
5109 bytes
Lines
101
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.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __INTEL_DSB_REGS_H__
#define __INTEL_DSB_REGS_H__

#include "intel_display_reg_defs.h"

/* This register controls the Display State Buffer (DSB) engines. */
#define _DSBSL_INSTANCE_BASE		0x70B00
#define DSBSL_INSTANCE(pipe, id)	(_DSBSL_INSTANCE_BASE + \
					 (pipe) * 0x1000 + (id) * 0x100)
#define DSB_HEAD(pipe, id)		_MMIO(DSBSL_INSTANCE(pipe, id) + 0x0)
#define DSB_TAIL(pipe, id)		_MMIO(DSBSL_INSTANCE(pipe, id) + 0x4)
#define DSB_CTRL(pipe, id)		_MMIO(DSBSL_INSTANCE(pipe, id) + 0x8)
#define   DSB_ENABLE			REG_BIT(31)
#define   DSB_BUF_REITERATE		REG_BIT(29)
#define   DSB_WAIT_FOR_VBLANK		REG_BIT(28)
#define   DSB_WAIT_FOR_LINE_IN		REG_BIT(27)
#define   DSB_HALT			REG_BIT(16)
#define   DSB_NON_POSTED		REG_BIT(8)
#define   DSB_STATUS_BUSY		REG_BIT(0)
#define DSB_MMIOCTRL(pipe, id)		_MMIO(DSBSL_INSTANCE(pipe, id) + 0xc)
#define   DSB_MMIO_DEAD_CLOCKS_ENABLE	REG_BIT(31)
#define   DSB_MMIO_DEAD_CLOCKS_COUNT_MASK	REG_GENMASK(15, 8)
#define   DSB_MMIO_DEAD_CLOCKS_COUNT(x)	REG_FIELD_PREP(DSB_MMIO_DEAD_CLOCK_COUNT_MASK, (x))
#define   DSB_MMIO_CYCLES_MASK		REG_GENMASK(7, 0)
#define   DSB_MMIO_CYCLES(x)		REG_FIELD_PREP(DSB_MMIO_CYCLES_MASK, (x))
#define DSB_POLLFUNC(pipe, id)		_MMIO(DSBSL_INSTANCE(pipe, id) + 0x10)
#define   DSB_POLL_ENABLE		REG_BIT(31)
#define   DSB_POLL_WAIT_MASK		REG_GENMASK(30, 23)
#define   DSB_POLL_WAIT(x)		REG_FIELD_PREP(DSB_POLL_WAIT_MASK, (x)) /* usec */
#define   DSB_POLL_COUNT_MASK		REG_GENMASK(22, 15)
#define   DSB_POLL_COUNT(x)		REG_FIELD_PREP(DSB_POLL_COUNT_MASK, (x))
#define DSB_DEBUG(pipe, id)		_MMIO(DSBSL_INSTANCE(pipe, id) + 0x14)
#define DSB_POLLMASK(pipe, id)		_MMIO(DSBSL_INSTANCE(pipe, id) + 0x1c)
#define DSB_STATUS(pipe, id)		_MMIO(DSBSL_INSTANCE(pipe, id) + 0x24)
#define   DSB_HP_IDLE_STATUS		REG_BIT(31)
#define   DSB_DEWAKE_STATUS		REG_BIT(30)
#define   DSB_REQARB_SM_STATE_MASK	REG_GENMASK(29, 27)
#define   DSB_SAFE_WINDOW_LIVE		REG_BIT(26)
#define   DSB_VTDFAULT_ARB_SM_STATE_MASK	REG_GENMASK(25, 23)
#define   DSB_TLBTRANS_SM_STATE_MASK	REG_GENMASK(21, 20)
#define   DSB_SAFE_WINDOW		REG_BIT(19)
#define   DSB_POINTERS_SM_STATE_MASK	REG_GENMASK(18, 17)
#define   DSB_BUSY_DURING_DELAYED_VBLANK	REG_BIT(16)
#define   DSB_MMIO_ARB_SM_STATE_MASK	REG_GENMASK(15, 13)
#define   DSB_MMIO_INST_SM_STATE_MASK	REG_GENMASK(11, 7)
#define   DSB_RESET_SM_STATE_MASK	REG_GENMASK(5, 4)
#define   DSB_RUN_SM_STATE_MASK		REG_GENMASK(2, 0)
#define DSB_INTERRUPT(pipe, id)		_MMIO(DSBSL_INSTANCE(pipe, id) + 0x28)
#define   DSB_GOSUB_INT_EN		REG_BIT(21) /* ptl+ */
#define   DSB_ATS_FAULT_INT_EN		REG_BIT(20) /* mtl+ */
#define   DSB_GTT_FAULT_INT_EN		REG_BIT(19)
#define   DSB_RSPTIMEOUT_INT_EN		REG_BIT(18)
#define   DSB_POLL_ERR_INT_EN		REG_BIT(17)
#define   DSB_PROG_INT_EN		REG_BIT(16)
#define   DSB_GOSUB_INT_STATUS		REG_BIT(5) /* ptl+ */
#define   DSB_ATS_FAULT_INT_STATUS	REG_BIT(4) /* mtl+ */
#define   DSB_GTT_FAULT_INT_STATUS	REG_BIT(3)
#define   DSB_RSPTIMEOUT_INT_STATUS	REG_BIT(2)
#define   DSB_POLL_ERR_INT_STATUS	REG_BIT(1)
#define   DSB_PROG_INT_STATUS		REG_BIT(0)
#define DSB_CURRENT_HEAD(pipe, id)	_MMIO(DSBSL_INSTANCE(pipe, id) + 0x2c)
#define DSB_RM_TIMEOUT(pipe, id)	_MMIO(DSBSL_INSTANCE(pipe, id) + 0x30)
#define   DSB_RM_CLAIM_TIMEOUT		REG_BIT(31)
#define   DSB_RM_READY_TIMEOUT		REG_BIT(30)
#define   DSB_RM_CLAIM_TIMEOUT_COUNT_MASK	REG_GENMASK(23, 16)
#define   DSB_RM_CLAIM_TIMEOUT_COUNT(x)	REG_FIELD_PREP(DSB_RM_CLAIM_TIMEOUT_COUNT_MASK, (x)) /* clocks */
#define   DSB_RM_READY_TIMEOUT_VALUE_MASK	REG_GENMASK(15, 0)
#define   DSB_RM_READY_TIMEOUT_VALUE(x)	REG_FIELD_PREP(DSB_RM_READY_TIMEOUT_VALUE, (x)) /* usec */
#define DSB_RMTIMEOUTREG_CAPTURE(pipe, id)	_MMIO(DSBSL_INSTANCE(pipe, id) + 0x34)
#define DSB_PMCTRL(pipe, id)		_MMIO(DSBSL_INSTANCE(pipe, id) + 0x38)
#define   DSB_ENABLE_DEWAKE		REG_BIT(31)
#define   DSB_SCANLINE_FOR_DEWAKE_MASK	REG_GENMASK(30, 0)
#define   DSB_SCANLINE_FOR_DEWAKE(x)	REG_FIELD_PREP(DSB_SCANLINE_FOR_DEWAKE_MASK, (x))
#define DSB_PMCTRL_2(pipe, id)		_MMIO(DSBSL_INSTANCE(pipe, id) + 0x3c)
#define   DSB_MMIOGEN_DEWAKE_DIS	REG_BIT(31)
#define   DSB_FORCE_DEWAKE		REG_BIT(23)
#define   DSB_BLOCK_DEWAKE_EXTENSION	REG_BIT(15)
#define   DSB_OVERRIDE_DC5_DC6_OK	REG_BIT(7)
#define DSB_PF_LN_LOWER(pipe, id)	_MMIO(DSBSL_INSTANCE(pipe, id) + 0x40)
#define DSB_PF_LN_UPPER(pipe, id)	_MMIO(DSBSL_INSTANCE(pipe, id) + 0x44)
#define DSB_BUFRPT_CNT(pipe, id)	_MMIO(DSBSL_INSTANCE(pipe, id) + 0x48)
#define DSB_CHICKEN(pipe, id)		_MMIO(DSBSL_INSTANCE(pipe, id) + 0xf0)
#define   DSB_FORCE_DMA_SYNC_RESET	REG_BIT(31)
#define   DSB_FORCE_VTD_ENGIE_RESET	REG_BIT(30)
#define   DSB_DISABLE_IPC_DEMOTE	REG_BIT(29)
#define   DSB_SKIP_WAITS_EN		REG_BIT(23)
#define   DSB_EXTEND_HP_IDLE		REG_BIT(16)
#define   DSB_CTRL_WAIT_SAFE_WINDOW	REG_BIT(15)
#define   DSB_CTRL_NO_WAIT_VBLANK	REG_BIT(14)
#define   DSB_INST_WAIT_SAFE_WINDOW	REG_BIT(7)

Annotation

Implementation Notes