linux/drivers/gpu/drm/amd/include/kgd_kfd_interface.h, branch v4.9

drm/amdkfd: Track when module's init is complete

2016-02-27T20:52:40Z

Current dependencies between amdkfd and radeon/amdgpu force the loading of amdkfd _before_ radeon and/or amdgpu are loaded. When all these kernel drivers are built as modules, this ordering is enforced by the kernel built-in mechanism of loading dependent modules. However, there is no such mechanism in case where all these drivers are compiled inside the kernel image (not as modules). The current way to enforce loading of amdkfd before radeon/amdgpu, is to put amdkfd before radeon/amdgpu in the drm Makefile, but that method is way too fragile. In addition, there is no kernel mechanism to check whether a kernel driver that is built inside the kernel image, has already been loaded. To solve this, this patch adds to kfd_module.c a new static variable, amdkfd_init_completed, that is set to 1 only when amdkfd's module initialization function has been completed (successfully). kgd2kfd_init(), which is the initialization function of the kgd-->kfd interface, and which is the first function in amdkfd called by radeon/amdgpu, will return successfully only if amdkfd_init_completed is equal 1. If amdkfd_init_completed is not equal to 1, kgd2kfd_init() will return -EPROBE_DEFER to signal radeon/amdgpu they need to defer their loading until amdkfd is loaded. Signed-off-by: Oded Gabbay Reviewed-by: Alex Deucher

drm/radeon: Modify kgd_engine_type enum to match CZ

2015-07-20T06:16:47Z

This patch splits the KGD_ENGINE_SDMA to KGD_ENGINE_SDMA1 and KGD_ENGINE_SDMA2 to match CZ definitions. Signed-off-by: Oded Gabbay

drm/radeon: Add ATC VMID<-->PASID functions to kfd->kgd

2015-06-03T08:34:46Z

This patch adds three new interfaces to kfd2kgd interface file of radeon. The interfaces are: - Check if a specific VMID has a valid PASID mapping - Retrieve the PASID which is mapped to a specific VMID - Issue a VMID invalidation request to the ATC Signed-off-by: Alexey Skidanov Signed-off-by: Oded Gabbay

drm/radeon: Add H/W debugger kfd->kgd functions

2015-06-03T08:31:12Z

This patch adds new interface functions to the kfd2kgd interface file. The new functions allow to perform H/W debugger operations by writing to GPU registers. Signed-off-by: Yair Shachar Signed-off-by: Oded Gabbay

drm/radeon: Add init interrupt kfd->kgd interface

2015-05-19T09:13:39Z

This patch adds a new interface function to the kfd->kgd interface. The function is kgd_init_interrupts() and its function is to initialize a pipe's interrupts. The function currently enables the timestamp interrupt and the bad opcode interrupt. Signed-off-by: Oded Gabbay

drm/amdkfd: Add multiple kgd support

2015-03-25T12:02:05Z

The current code can only support one kgd instance. We have to support multiple kgd instances in one system. i.e two amdgpu or two radeon or one amdgpu + one radeon or more than two kgd instances. Signed-off-by: Xihan Zhang Signed-off-by: Oded Gabbay

Merge remote-tracking branch 'origin/master' into drm-next

2015-01-22T00:44:41Z

Backmerge Linus tree after rc5 + drm-fixes went in. There were a few amdkfd conflicts I wanted to avoid, and Ben requested this for nouveau also. Conflicts: drivers/gpu/drm/amd/amdkfd/Makefile drivers/gpu/drm/amd/amdkfd/kfd_chardev.c drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c drivers/gpu/drm/amd/amdkfd/kfd_priv.h drivers/gpu/drm/amd/include/kgd_kfd_interface.h drivers/gpu/drm/i915/intel_runtime_pm.c drivers/gpu/drm/radeon/radeon_kfd.c

drm/amd: Fixing typos in kfd<->kgd interface

2014-12-09T10:00:09Z

Signed-off-by: Ben Goz Signed-off-by: Oded Gabbay

drm/amd: Add get_fw_version to kfd-->kgd interface

2014-11-09T10:42:22Z

This patch adds a new interface to the kfd-->kgd interface. The new interface function retrieves the firmware version that is currently in use by the MEC engine. The firmware was uploaded to the MEC engine by the kgd (radeon). v2: Added parameter of engine type to interface function Signed-off-by: Oded Gabbay Reviewed-by: Alex Deucher

drm/radeon: Initialize compute vmid

2015-01-02T21:43:19Z

This patch moves to radeon the initialization of compute vmid. That initializations was done in kfd-->kgd interface, but doing it in radeon as part of radeon's H/W initialization routines is more appropriate. In addition, this simplifies the kfd-->kgd interface. The patch removes the function from the interface file and from the interface declaration file. The function initializes memory apertures to fixed base/limit address and non cached memory types. Signed-off-by: Ben Goz Signed-off-by: Oded Gabbay Reviewed-by: Alex Deucher