drm/amdgpu: Support new arcturus mtype

Arcturus repurposed mtype WC to RW. Modify gmc functions
to support the new mtype

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index b4eead9..420dcdd 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -607,6 +607,9 @@ static uint64_t gmc_v9_0_get_vm_pte_flags(struct amdgpu_device *adev,
        case AMDGPU_VM_MTYPE_WC:
                pte_flag |= AMDGPU_PTE_MTYPE_VG10(MTYPE_WC);
                break;
+       case AMDGPU_VM_MTYPE_RW:
+               pte_flag |= AMDGPU_PTE_MTYPE_VG10(MTYPE_RW);
+               break;
        case AMDGPU_VM_MTYPE_CC:
                pte_flag |= AMDGPU_PTE_MTYPE_VG10(MTYPE_CC);
                break;

diff --git a/drivers/gpu/drm/amd/include/vega10_enum.h b/drivers/gpu/drm/amd/include/vega10_enum.h
index c14ba65..adf1b75 100644 (file)
--- a/drivers/gpu/drm/amd/include/vega10_enum.h
+++ b/drivers/gpu/drm/amd/include/vega10_enum.h
@@ -1037,6 +1037,7 @@ TCC_CACHE_POLICY_STREAM                  = 0x00000001,
 typedef enum MTYPE {
 MTYPE_NC                                 = 0x00000000,
 MTYPE_WC                                 = 0x00000001,
+MTYPE_RW                                 = 0x00000001,
 MTYPE_CC                                 = 0x00000002,
 MTYPE_UC                                 = 0x00000003,
 } MTYPE;