Trigger Huang 6b1ff3ddc6 drm/amdgpu: add basic func for RLC program reg
New feature for RLC, some registers can be programmed by
RLC interface under SR-IOV VF:

WREG32_SOC15_RLC_SHADOW:
	1, for GRBM_GFX_CNTL, firstly the new register value should be be
		programmed to SCRATCH_REG2
	1, for GRBM_GFX_INDEX, firstly the new register value should be be
		programmed to SCRATCH_REG3

WREG32_RLC:
	for registers supported to be programmed by RLC interface, the
	following sequence should be used:
		1, write the value to SCRATCH_REG0
		2, write reg | 0x80000000 to SCRATCH_REG1
		3, write 0x1 to RLC_SPARE_INT to notify RLC
		4, polling SCRATCH_REG1 to check if finished

Signed-off-by: Trigger Huang <Trigger.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-24 12:20:51 -05:00
2019-05-16 15:51:55 -07:00
2019-05-19 15:47:09 -07:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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