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

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 <oded.gabbay@gmail.com>

1 files changed, 20 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_kfd.c b/drivers/gpu/drm/radeon/radeon_kfd.c
index 3db23007cdf4..813a416db538 100644
--- a/drivers/gpu/drm/radeon/radeon_kfd.c
+++ b/drivers/gpu/drm/radeon/radeon_kfd.c
@@ -66,7 +66,7 @@ static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
 
 static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
 				uint32_t hpd_size, uint64_t hpd_gpu_addr);
-
+static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id);
 static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
 			uint32_t queue_id, uint32_t __user *wptr);
 static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd);
@@ -89,6 +89,7 @@ static const struct kfd2kgd_calls kfd2kgd = {
 	.program_sh_mem_settings = kgd_program_sh_mem_settings,
 	.set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping,
 	.init_pipeline = kgd_init_pipeline,
+	.init_interrupts = kgd_init_interrupts,
 	.hqd_load = kgd_hqd_load,
 	.hqd_sdma_load = kgd_hqd_sdma_load,
 	.hqd_is_occupied = kgd_hqd_is_occupied,
@@ -407,6 +408,24 @@ static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
 	return 0;
 }
 
+static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id)
+{
+	uint32_t mec;
+	uint32_t pipe;
+
+	mec = (pipe_id / CIK_PIPE_PER_MEC) + 1;
+	pipe = (pipe_id % CIK_PIPE_PER_MEC);
+
+	lock_srbm(kgd, mec, pipe, 0, 0);
+
+	write_register(kgd, CPC_INT_CNTL,
+			TIME_STAMP_INT_ENABLE | OPCODE_ERROR_INT_ENABLE);
+
+	unlock_srbm(kgd);
+
+	return 0;
+}
+
 static inline uint32_t get_sdma_base_addr(struct cik_sdma_rlc_registers *m)
 {
 	uint32_t retval;