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drm/amdgpu: Program GC registers through RLCG interface in gfx_v11/gmc_v11 

[Why]
L1 blocks most of GC registers accessing by MMIO.

[How]
Use RLCG interface to program GC registers under SRIOV VF in full access time.

Signed-off-by: Yifan Zha <Yifan.Zha@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yifan Zha 2022-09-07 14:13:02 +08:00 коммит произвёл Alex Deucher
Родитель e688ba3e27
Коммит 97a3d6090f
3 изменённых файлов: 13 добавлений и 9 удалений
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v11.c
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@ -111,7 +111,7 @@ static int init_interrupts_v11(struct amdgpu_device *adev, uint32_t pipe_id)
lock_srbm(adev, mec, pipe, 0, 0);
WREG32(SOC15_REG_OFFSET(GC, 0, regCPC_INT_CNTL),
WREG32_SOC15(GC, 0, regCPC_INT_CNTL,
CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK |
CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK);

2
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
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@ -1571,7 +1571,7 @@ static void gfx_v11_0_init_compute_vmid(struct amdgpu_device *adev)
WREG32_SOC15(GC, 0, regSH_MEM_BASES, sh_mem_bases);
/* Enable trap for each kfd vmid. */
data = RREG32(SOC15_REG_OFFSET(GC, 0, regSPI_GDBG_PER_VMID_CNTL));
data = RREG32_SOC15(GC, 0, regSPI_GDBG_PER_VMID_CNTL);
data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, TRAP_EN, 1);
}
soc21_grbm_select(adev, 0, 0, 0, 0);

18
drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
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@ -186,6 +186,10 @@ static void gmc_v11_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid,
/* Use register 17 for GART */
const unsigned eng = 17;
unsigned int i;
unsigned char hub_ip = 0;
hub_ip = (vmhub == AMDGPU_GFXHUB_0) ?
GC_HWIP : MMHUB_HWIP;
spin_lock(&adev->gmc.invalidate_lock);
/*
@ -199,8 +203,8 @@ static void gmc_v11_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid,
if (use_semaphore) {
for (i = 0; i < adev->usec_timeout; i++) {
/* a read return value of 1 means semaphore acuqire */
tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_sem +
hub->eng_distance * eng);
tmp = RREG32_RLC_NO_KIQ(hub->vm_inv_eng0_sem +
hub->eng_distance * eng, hub_ip);
if (tmp & 0x1)
break;
udelay(1);
@ -210,12 +214,12 @@ static void gmc_v11_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid,
DRM_ERROR("Timeout waiting for sem acquire in VM flush!\n");
}
WREG32_NO_KIQ(hub->vm_inv_eng0_req + hub->eng_distance * eng, inv_req);
WREG32_RLC_NO_KIQ(hub->vm_inv_eng0_req + hub->eng_distance * eng, inv_req, hub_ip);
/* Wait for ACK with a delay.*/
for (i = 0; i < adev->usec_timeout; i++) {
tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack +
hub->eng_distance * eng);
tmp = RREG32_RLC_NO_KIQ(hub->vm_inv_eng0_ack +
hub->eng_distance * eng, hub_ip);
tmp &= 1 << vmid;
if (tmp)
break;
@ -229,8 +233,8 @@ static void gmc_v11_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid,
* add semaphore release after invalidation,
* write with 0 means semaphore release
*/
WREG32_NO_KIQ(hub->vm_inv_eng0_sem +
hub->eng_distance * eng, 0);
WREG32_RLC_NO_KIQ(hub->vm_inv_eng0_sem +
hub->eng_distance * eng, 0, hub_ip);
/* Issue additional private vm invalidation to MMHUB */
if ((vmhub != AMDGPU_GFXHUB_0) &&