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drm/amdgpu: Add SDMA v4.4.2 XCP funcs

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Add functions required to suspend/resume instances of SDMA which
are part of an XCP.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar
2022-09-23 15:40:15 +05:30
committed by Alex Deucher
parent dfdd6f89c4
commit 3446cb78f3
1 changed files with 36 additions and 0 deletions
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36
drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
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@@ -27,6 +27,7 @@
#include <linux/pci.h>
#include "amdgpu.h"
#include "amdgpu_xcp.h"
#include "amdgpu_ucode.h"
#include "amdgpu_trace.h"
@@ -2025,3 +2026,38 @@ const struct amdgpu_ip_block_version sdma_v4_4_2_ip_block = {
.rev = 0,
.funcs = &sdma_v4_4_2_ip_funcs,
};
static int sdma_v4_4_2_xcp_resume(void *handle, uint32_t inst_mask)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int r;
if (!amdgpu_sriov_vf(adev))
sdma_v4_4_2_inst_init_golden_registers(adev, inst_mask);
r = sdma_v4_4_2_inst_start(adev, inst_mask);
return r;
}
static int sdma_v4_4_2_xcp_suspend(void *handle, uint32_t inst_mask)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
uint32_t tmp_mask = inst_mask;
int i;
for_each_inst(i, tmp_mask) {
amdgpu_irq_put(adev, &adev->sdma.ecc_irq,
AMDGPU_SDMA_IRQ_INSTANCE0 + i);
}
sdma_v4_4_2_inst_ctx_switch_enable(adev, false, inst_mask);
sdma_v4_4_2_inst_enable(adev, false, inst_mask);
return 0;
}
struct amdgpu_xcp_ip_funcs sdma_v4_4_2_xcp_funcs = {
.suspend = &sdma_v4_4_2_xcp_suspend,
.resume = &sdma_v4_4_2_xcp_resume
};