linux/drivers/gpu/drm/amd, branch v3.19

drm/amdkfd: Don't create BUG due to incorrect user parameter

2015-02-02T07:45:24Z

This patch changes a BUG_ON() statement to pr_debug, in case the user tries to update a non-existing queue. Signed-off-by: Oded Gabbay Reviewed-by: Ben Goz Reviewed-by: Jammy Zhou Reviewed-by: Alex Deucher

drm/amdkfd: max num of queues can't be 0

2015-02-02T07:45:24Z

Signed-off-by: Oded Gabbay Reviewed-by: Jammy Zhou Reviewed-by: Alex Deucher

drm/amdkfd: Fix bug in accounting of queues

2015-02-02T07:45:24Z

Signed-off-by: Oded Gabbay Reviewed-by: Jammy Zhou Reviewed-by: Alex Deucher

drm/amdkfd: Fix bug in call to init_pipelines()

2015-01-22T10:50:37Z

This patch fixes a bug where the first_pipe index passed into init_pipelines() was a #define instead of the value that is passed into amdkfd by radeon Signed-off-by: Oded Gabbay Reviewed-by: Alex Deucher Reviewed-by: Jammy Zhou

drm/amdkfd: Fix bug in pipelines initialization

2015-01-22T09:03:42Z

This patch fixes a bug when calling to init_pipeline() interface. The index that was passed to that function didn't take into account the first_pipe value, which represents the first pipe index that is under amdkfd's responsibility. Signed-off-by: Oded Gabbay Reviewed-by: Alex Deucher Reviewed-by: Jammy Zhou

drm/amdkfd: Allow user to limit only queues per device

2015-01-18T11:18:01Z

This patch replaces the two current amdkfd module parameters with a new one. The current parameters that are being replaced are: - Maximum number of HSA processes - Maximum number of queues per process The new parameter that replaces them is called "Maximum queues per device" This replacement achieves two goals: - Allows the user to have as many HSA processes as it wants (until a maximum of 512 HSA processes in Kaveri). - Removes the limitation the user had on maximum number of queues per HSA process. E.g. the user can now have processes which only have one queue and other processes which have hundreds of queues, while before the user couldn't have more than 128 queues per process (as default). The default value of the new parameter is 4096 (32 * 128, which were the defaults of the old parameters). There is almost no additional GART memory required for the default case. As a reminder, this amount of queues requires a little bit below 4MB of GART memory. v2: In addition, This patch defines a new counter for queues accounting in the DQM structure. This is done because the current counter only counts active queues which allows the user to create more queues than the max_num_of_queues_per_device module parameter allows. However, we need the current counter for the runlist packet build process, so the solution is to have a dedicated counter for this accounting. Signed-off-by: Oded Gabbay Reviewed-by: Ben Goz

drm/amdkfd: PQM handle queue creation fault

2015-01-15T15:14:47Z

If the first queue created was failed on DQM then PQM should unregister the process from DQM. Signed-off-by: Ben Goz Signed-off-by: Oded Gabbay

drm/amdkfd: Fix sparse warning (different address space)

2015-01-08T14:46:16Z

Signed-off-by: Oded Gabbay

drm/amdkfd: Drop interrupt SW ring buffer

2015-01-08T04:27:15Z

The work queue couldn't reliably prevent the SW ring buffer from overflowing, so dmesg was spammed by kfd kfd: Interrupt ring overflow, dropping interrupt. messages when running e.g. the Atlantis Substance demo from https://wiki.unrealengine.com/Linux_Demos on Kaveri. Since the SW ring buffer doesn't actually do anything at this point, just remove it for now. When actual interrupt processing code is added to amdkfd, it should try to do things immediately and only defer to work queues when necessary. Signed-off-by: Michel Dänzer Reviewed-by: Christian König Signed-off-by: Oded Gabbay

drm/amdkfd: rewrite kfd_ioctl() according to drm_ioctl()

2015-01-06T17:44:36Z

This patch changes kfd_ioctl() to be very similar to drm_ioctl(). The patch defines an array of amdkfd_ioctls, which maps IOCTL definition to the ioctl function. The kfd_ioctl() uses that mapping to call the appropriate ioctl function, through a function pointer. This patch also declares a new typedef for the ioctl function pointer. v2: Renamed KFD_COMMAND_(START|END) to AMDKFD_... Signed-off-by: Oded Gabbay Acked-by: Christian König