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    • 2. 发明授权
    • System and method for controlling mode switches in hardware
    • 用于在硬件中控制模式开关的系统和方法
    • US08234488B1
    • 2012-07-31
    • US11945218
    • 2007-11-26
    • Duncan A. RiachMichael A. OgrincLeslie E. Neft
    • Duncan A. RiachMichael A. OgrincLeslie E. Neft
    • G06F1/24G06F9/00
    • G06F1/3228G09G5/363G09G2320/06G09G2360/121G09G2370/04
    • One embodiment of the present invention sets forth a technique for controlling mode switches in hardware. The resource manager includes an “is mode possible” function that evaluates a given mode in conjunction with the limitations of the hardware to determine if the given mode is feasible. The display driver is configured to call this function to validate a proposed mode before generating commands specifying the state changes for the display heads. The display software interface hardware module within the GPU processes these commands and follows a standard sequence of steps to implement the mode switch. The steps may include interrupts to the resource manager to re-validate the proposed mode, again calling the “is mode possible” function, or perform operations that are not yet supported in the hardware. Advantageously, controlling mode switches in hardware enables less error-prone, more efficient, and more discerning mode switches relative to controlling mode switches in software.
    • 本发明的一个实施例提出了一种用于控制硬件中的模式切换的技术。 资源管理器包括一个“可能的模式”功能,其结合硬件的限制来评估给定的模式,以确定给定模式是否可行。 显示驱动器被配置为在生成指定显示器头的状态改变的命令之前调用该功能来验证所提出的模式。 GPU内的显示软件接口硬件模块处理这些命令,并按照标准的步骤顺序执行模式切换。 这些步骤可以包括资源管理器的中断以重新验证所提出的模式,再次调用“可能的模式”功能,或执行硬件中尚未支持的操作。 有利地,与软件中的控制模式切换相比,硬件中的控制模式切换使得相对于控制模式切换更少的易错,更有效和更挑剔的模式切换。
    • 5. 发明申请
    • Work Based Clock Management for Display Sub-System
    • 显示子系统的基于工作的时钟管理
    • US20070250728A1
    • 2007-10-25
    • US11690093
    • 2007-03-22
    • Duncan A. RiachMichael A. OgrincLeslie E. Neft
    • Duncan A. RiachMichael A. OgrincLeslie E. Neft
    • G06F1/04G06F1/00
    • G06F1/3203G06F1/3237Y02D10/128Y02D50/20
    • A system and method for enabling or disabling clocks to one or more portions of hardware circuitry, for example a display sub-system of a personal computer. A processor generates a command or data to a first circuit configured to perform a function based at least on the command or data. A clock generator selectively supplies clocks to the first circuit and a second circuit configured to perform a second function. A software interface circuit coupled to the processor and the clock generator autonomously determines based at least on the command or data whether the second circuit will perform the second function or be idle in an upcoming period and disables one or more of the clocks to the second circuit if the second circuit will be idle in the upcoming period.
    • 一种用于启用或禁用时钟到硬件电路的一个或多个部分的系统和方法,例如个人计算机的显示子系统。 处理器生成命令或数据至配置为至少基于命令或数据执行功能的第一电路。 时钟发生器选择性地向第一电路提供时钟,并且配置成执行第二功能的第二电路。 耦合到处理器和时钟发生器的软件接口电路至少基于命令或数据自主地确定第二电路是否将执行第二功能或在即将到来的时段中处于空闲状态,并且将一个或多个时钟禁用到第二电路 如果第二个电路在即将到来的时间内将处于空闲状态。
    • 6. 发明授权
    • System and method for controlling mode switches in hardware
    • 用于在硬件中控制模式开关的系统和方法
    • US09292069B1
    • 2016-03-22
    • US11945217
    • 2007-11-26
    • Duncan A. RiachMichael A. OgrincLeslie E. Neft
    • Duncan A. RiachMichael A. OgrincLeslie E. Neft
    • G06F17/00G06F1/32
    • G06F1/3228G09G5/363G09G2320/06G09G2360/121G09G2370/04
    • One embodiment of the present invention sets forth a technique for controlling mode switches in hardware. The resource manager includes an “is mode possible” function that evaluates a given mode in conjunction with the limitations of the hardware to determine if the given mode is feasible. The display driver is configured to call this function to validate a proposed mode before generating commands specifying the state changes for the display heads. The display software interface hardware module within the GPU processes these commands and follows a standard sequence of steps to implement the mode switch. The steps may include interrupts to the resource manager to re-validate the proposed mode, again calling the “is mode possible” function, or perform operations that are not yet supported in the hardware. Advantageously, controlling mode switches in hardware enables less error-prone, more efficient, and more discerning mode switches relative to controlling mode switches in software.
    • 本发明的一个实施例提出了一种用于控制硬件中的模式切换的技术。 资源管理器包括一个“可能的模式”功能,其结合硬件的限制来评估给定的模式,以确定给定模式是否可行。 显示驱动器被配置为在生成指定显示器头的状态改变的命令之前调用该功能来验证所提出的模式。 GPU内的显示软件接口硬件模块处理这些命令,并按照标准的步骤顺序执行模式切换。 这些步骤可以包括资源管理器的中断以重新验证所提出的模式,再次调用“可能的模式”功能,或执行硬件中尚未支持的操作。 有利地,与软件中的控制模式切换相比,硬件中的控制模式切换使得相对于控制模式切换更少的易错,更有效和更挑剔的模式切换。
    • 7. 发明授权
    • Work based clock management for display sub-system
    • 用于显示子系统的基于工作的时钟管理
    • US07882380B2
    • 2011-02-01
    • US11690093
    • 2007-03-22
    • Duncan A. RiachMichael A. OgrincLeslie E. Neft
    • Duncan A. RiachMichael A. OgrincLeslie E. Neft
    • G06F1/00
    • G06F1/3203G06F1/3237Y02D10/128Y02D50/20
    • A system and method for enabling or disabling clocks to one or more portions of hardware circuitry, for example a display sub-system of a personal computer. A processor generates a command or data to a first circuit configured to perform a function based at least on the command or data. A clock generator selectively supplies clocks to the first circuit and a second circuit configured to perform a second function. A software interface circuit coupled to the processor and the clock generator autonomously determines based at least on the command or data whether the second circuit will perform the second function or be idle in an upcoming period and disables one or more of the clocks to the second circuit if the second circuit will be idle in the upcoming period.
    • 一种用于启用或禁用时钟到硬件电路的一个或多个部分的系统和方法,例如个人计算机的显示子系统。 处理器生成命令或数据至配置为至少基于命令或数据执行功能的第一电路。 时钟发生器选择性地向第一电路提供时钟,并且配置成执行第二功能的第二电路。 耦合到处理器和时钟发生器的软件接口电路至少基于命令或数据自主地确定第二电路是否将执行第二功能或在即将到来的时段中处于空闲状态,并且将一个或多个时钟禁用到第二电路 如果第二个电路在即将到来的时间内将处于空闲状态。