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drm/amdgpu: Get supported memory partition modes 

Expand the interface to get supported memory partition modes also along
with the current memory partition mode.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Le Ma <le.ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar 2023-02-17 09:32:44 +05:30 committed by Alex Deucher
parent b6f90baafe
commit 0f2e1d620e
3 changed files with 19 additions and 4 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h
View File

@ -97,7 +97,8 @@ struct amdgpu_nbio_funcs {
void (*clear_doorbell_interrupt)(struct amdgpu_device *adev);
u32 (*get_rom_offset)(struct amdgpu_device *adev);
int (*get_compute_partition_mode)(struct amdgpu_device *adev);
u32 (*get_memory_partition_mode)(struct amdgpu_device *adev);
u32 (*get_memory_partition_mode)(struct amdgpu_device *adev,
u32 *supp_modes);
void (*set_compute_partition_mode)(struct amdgpu_device *adev,
enum amdgpu_gfx_partition mode);
};

11
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
View File

@ -1331,16 +1331,23 @@ static unsigned gmc_v9_0_get_vbios_fb_size(struct amdgpu_device *adev)
}
static enum amdgpu_memory_partition
gmc_v9_0_query_memory_partition(struct amdgpu_device *adev)
gmc_v9_0_get_memory_partition(struct amdgpu_device *adev, u32 *supp_modes)
{
enum amdgpu_memory_partition mode = UNKNOWN_MEMORY_PARTITION_MODE;
if (adev->nbio.funcs->get_memory_partition_mode)
mode = adev->nbio.funcs->get_memory_partition_mode(adev);
mode = adev->nbio.funcs->get_memory_partition_mode(adev,
supp_modes);
return mode;
}
static enum amdgpu_memory_partition
gmc_v9_0_query_memory_partition(struct amdgpu_device *adev)
{
return gmc_v9_0_get_memory_partition(adev, NULL);
}
static const struct amdgpu_gmc_funcs gmc_v9_0_gmc_funcs = {
.flush_gpu_tlb = gmc_v9_0_flush_gpu_tlb,
.flush_gpu_tlb_pasid = gmc_v9_0_flush_gpu_tlb_pasid,

9
drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c
View File

@ -408,12 +408,19 @@ static void nbio_v7_9_set_compute_partition_mode(struct amdgpu_device *adev,
WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_PARTITION_COMPUTE_STATUS, tmp);
}
static enum amdgpu_memory_partition nbio_v7_9_get_memory_partition_mode(struct amdgpu_device *adev)
static enum amdgpu_memory_partition
nbio_v7_9_get_memory_partition_mode(struct amdgpu_device *adev, u32 *supp_modes)
{
u32 tmp;
tmp = RREG32_SOC15(NBIO, 0, regBIF_BX_PF0_PARTITION_MEM_STATUS);
tmp = REG_GET_FIELD(tmp, BIF_BX_PF0_PARTITION_MEM_STATUS, NPS_MODE);
if (supp_modes) {
*supp_modes =
RREG32_SOC15(NBIO, 0, regBIF_BX_PF0_PARTITION_MEM_CAP);
}
return ffs(tmp);
}