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amdgpu: add IB sharing support v2 

A new 'offset' flag is added to the amdgpu_cs_ib_info structure,
which can be used to specify location of PM4 packets to execute
in the IB buffer object

v2: remove the shared IB flag, etc

Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
main
Jammy Zhou 2015-05-21 04:17:48 +08:00 committed by Alex Deucher
parent 7c50f0d984
commit 60e221c925
2 changed files with 14 additions and 1 deletions
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3
amdgpu/amdgpu.h
View File

@ -342,6 +342,9 @@ struct amdgpu_cs_ib_info {
* - Could be 0
*/
uint32_t size;
/** Offset in the IB buffer object (in unit of dwords) */
uint32_t offset_dw;
};
/**

12
amdgpu/amdgpu_cs.c
View File

@ -316,8 +316,17 @@ static void amdgpu_cs_add_pending(amdgpu_context_handle context,
uint32_t ring)
{
struct list_head *head;
struct amdgpu_ib *next;
struct amdgpu_ib *s;
pthread_mutex_lock(&context->pendings_mutex);
head = &context->pendings[ip][ip_instance][ring];
LIST_FOR_EACH_ENTRY_SAFE(next, s, head, list_node)
if (next == ib) {
pthread_mutex_unlock(&context->pendings_mutex);
return;
}
LIST_ADDTAIL(&ib->list_node, head);
pthread_mutex_unlock(&context->pendings_mutex);
return;
@ -694,7 +703,8 @@ static int amdgpu_cs_submit_one(amdgpu_context_handle context,
ib = &ibs_request->ibs[i];
chunk_data[i].ib_data.handle = ib->ib_handle->buf_handle->handle;
chunk_data[i].ib_data.va_start = ib->ib_handle->virtual_mc_base_address;
chunk_data[i].ib_data.va_start = ib->ib_handle->virtual_mc_base_address
+ ib->offset_dw * 4;
chunk_data[i].ib_data.ib_bytes = ib->size * 4;
chunk_data[i].ib_data.ip_type = ibs_request->ip_type;
chunk_data[i].ib_data.ip_instance = ibs_request->ip_instance;