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drm/amdgpu: remove SRIOV VF FB location programming

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For SRIOV VF, FB location is programmed by host driver, no need to
program it in guest driver.

v2: squash in unused variable removal

Signed-off-by: Zhigang Luo <Zhigang.Luo@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Zhigang Luo 2023-07-06 12:05:40 -04:00 committed by Alex Deucher
parent c7ddc0a800
commit 66353ec433
2 changed files with 0 additions and 28 deletions
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16
drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c
View File

@ -402,22 +402,6 @@ static void gfxhub_v1_2_xcc_program_invalidation(struct amdgpu_device *adev,
static int gfxhub_v1_2_xcc_gart_enable(struct amdgpu_device *adev,
uint32_t xcc_mask)
{
int i;
/*
* MC_VM_FB_LOCATION_BASE/TOP is NULL for VF, because they are
* VF copy registers so vbios post doesn't program them, for
* SRIOV driver need to program them
*/
if (amdgpu_sriov_vf(adev)) {
for_each_inst(i, xcc_mask) {
WREG32_SOC15_RLC(GC, GET_INST(GC, i), regMC_VM_FB_LOCATION_BASE,
adev->gmc.vram_start >> 24);
WREG32_SOC15_RLC(GC, GET_INST(GC, i), regMC_VM_FB_LOCATION_TOP,
adev->gmc.vram_end >> 24);
}
}
/* GART Enable. */
gfxhub_v1_2_xcc_init_gart_aperture_regs(adev, xcc_mask);
gfxhub_v1_2_xcc_init_system_aperture_regs(adev, xcc_mask);

12
drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c
View File

@ -413,18 +413,6 @@ static void mmhub_v1_8_program_invalidation(struct amdgpu_device *adev)
static int mmhub_v1_8_gart_enable(struct amdgpu_device *adev)
{
if (amdgpu_sriov_vf(adev)) {
/*
* MC_VM_FB_LOCATION_BASE/TOP is NULL for VF, becuase they are
* VF copy registers so vbios post doesn't program them, for
* SRIOV driver need to program them
*/
WREG32_SOC15(MMHUB, 0, regMC_VM_FB_LOCATION_BASE,
adev->gmc.vram_start >> 24);
WREG32_SOC15(MMHUB, 0, regMC_VM_FB_LOCATION_TOP,
adev->gmc.vram_end >> 24);
}
/* GART Enable. */
mmhub_v1_8_init_gart_aperture_regs(adev);
mmhub_v1_8_init_system_aperture_regs(adev);