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drm/amdkfd: Use functions from amdgpu to invalidate vmid in kfd

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As part of the change, we stop taking the srbm lock, and start to use
the same invalidation engine and software lock as amdgpu.

Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yong Zhao 2018-10-12 17:23:09 -04:00 committed by Alex Deucher
parent 2a79d86897
commit afd545f673
1 changed files with 1 additions and 36 deletions
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37
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c
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@ -48,17 +48,6 @@
#include "soc15d.h"
#include "gmc_v9_0.h"
/* HACK: MMHUB and GC both have VM-related register with the same
* names but different offsets. Define the MMHUB register we need here
* with a prefix. A proper solution would be to move the functions
* programming these registers into gfx_v9_0.c and mmhub_v1_0.c
* respectively.
*/
#define mmMMHUB_VM_INVALIDATE_ENG16_REQ 0x06f3
#define mmMMHUB_VM_INVALIDATE_ENG16_REQ_BASE_IDX 0
#define mmMMHUB_VM_INVALIDATE_ENG16_ACK 0x0705
#define mmMMHUB_VM_INVALIDATE_ENG16_ACK_BASE_IDX 0
#define V9_PIPE_PER_MEC (4)
#define V9_QUEUES_PER_PIPE_MEC (8)
@ -742,15 +731,6 @@ static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid)
{
struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
uint32_t req = (1 << vmid) |
(0 << VM_INVALIDATE_ENG16_REQ__FLUSH_TYPE__SHIFT) | /* legacy */
VM_INVALIDATE_ENG16_REQ__INVALIDATE_L2_PTES_MASK |
VM_INVALIDATE_ENG16_REQ__INVALIDATE_L2_PDE0_MASK |
VM_INVALIDATE_ENG16_REQ__INVALIDATE_L2_PDE1_MASK |
VM_INVALIDATE_ENG16_REQ__INVALIDATE_L2_PDE2_MASK |
VM_INVALIDATE_ENG16_REQ__INVALIDATE_L1_PTES_MASK;
mutex_lock(&adev->srbm_mutex);
/* Use legacy mode tlb invalidation.
*
@ -767,22 +747,7 @@ static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid)
* TODO 2: support range-based invalidation, requires kfg2kgd
* interface change
*/
WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG16_REQ), req);
WREG32(SOC15_REG_OFFSET(MMHUB, 0, mmMMHUB_VM_INVALIDATE_ENG16_REQ),
req);
while (!(RREG32(SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG16_ACK)) &
(1 << vmid)))
cpu_relax();
while (!(RREG32(SOC15_REG_OFFSET(MMHUB, 0,
mmMMHUB_VM_INVALIDATE_ENG16_ACK)) &
(1 << vmid)))
cpu_relax();
mutex_unlock(&adev->srbm_mutex);
amdgpu_gmc_flush_gpu_tlb(adev, vmid, 0);
}
static int invalidate_tlbs_with_kiq(struct amdgpu_device *adev, uint16_t pasid)