[PATCH] drm/amdgpu: query vram type from atombios
Hawking Zhang
Hawking.Zhang at amd.com
Thu Mar 8 10:02:54 UTC 2018
The vram type for dGPU is stored in umc_info while sys mem type
for APU is stored in integratedsysteminfo
Change-Id: Iec14a0cac407f3da37245786c8f1b688968f8726
Signed-off-by: Hawking Zhang <Hawking.Zhang at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 95 +++++++++++++++++++++++-
drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h | 1 +
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 4 +-
include/uapi/drm/amdgpu_drm.h | 1 +
4 files changed, 94 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
index ff8efd0..a0f48cb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -114,6 +114,9 @@ union igp_info {
struct atom_integrated_system_info_v1_11 v11;
};
+union umc_info {
+ struct atom_umc_info_v3_1 v31;
+};
/*
* Return vram width from integrated system info table, if available,
* or 0 if not.
@@ -143,6 +146,94 @@ int amdgpu_atomfirmware_get_vram_width(struct amdgpu_device *adev)
return 0;
}
+static int convert_atom_mem_type_to_vram_type (struct amdgpu_device *adev,
+ int atom_mem_type)
+{
+ int vram_type;
+
+ if (adev->flags & AMD_IS_APU) {
+ switch (atom_mem_type) {
+ case Ddr2MemType:
+ case LpDdr2MemType:
+ vram_type = AMDGPU_VRAM_TYPE_DDR2;
+ break;
+ case Ddr3MemType:
+ case LpDdr3MemType:
+ vram_type = AMDGPU_VRAM_TYPE_DDR3;
+ break;
+ case Ddr4MemType:
+ case LpDdr4MemType:
+ vram_type = AMDGPU_VRAM_TYPE_DDR4;
+ break;
+ default:
+ vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
+ break;
+ }
+ } else {
+ switch (atom_mem_type) {
+ case ATOM_DGPU_VRAM_TYPE_GDDR5:
+ vram_type = AMDGPU_VRAM_TYPE_GDDR5;
+ break;
+ case ATOM_DGPU_VRAM_TYPE_HBM:
+ vram_type = AMDGPU_VRAM_TYPE_HBM;
+ break;
+ default:
+ vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
+ break;
+ }
+ }
+
+ return vram_type;
+}
+/*
+ * Return vram type from either integrated system info table
+ * or umc info table, if available, or 0 (TYPE_UNKNOWN) if not
+ */
+int amdgpu_atomfirmware_get_vram_type(struct amdgpu_device *adev)
+{
+ struct amdgpu_mode_info *mode_info = &adev->mode_info;
+ int index;
+ u16 data_offset, size;
+ union igp_info *igp_info;
+ union umc_info *umc_info;
+ u8 frev, crev;
+ u8 mem_type;
+
+ if (adev->flags & AMD_IS_APU)
+ index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
+ integratedsysteminfo);
+ else
+ index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
+ umc_info);
+ if (amdgpu_atom_parse_data_header(mode_info->atom_context,
+ index, &size,
+ &frev, &crev, &data_offset)) {
+ if (adev->flags & AMD_IS_APU) {
+ igp_info = (union igp_info *)
+ (mode_info->atom_context->bios + data_offset);
+ switch (crev) {
+ case 11:
+ mem_type = igp_info->v11.memorytype;
+ return convert_atom_mem_type_to_vram_type(adev, mem_type);
+ default:
+ return 0;
+ }
+ } else {
+ umc_info = (union umc_info *)
+ (mode_info->atom_context->bios + data_offset);
+ switch (crev) {
+ case 1:
+ mem_type = umc_info->v31.vram_type;
+ return convert_atom_mem_type_to_vram_type(adev, mem_type);
+ default:
+ return 0;
+ }
+ }
+ }
+
+ return 0;
+}
+
union firmware_info {
struct atom_firmware_info_v3_1 v31;
};
@@ -151,10 +242,6 @@ union smu_info {
struct atom_smu_info_v3_1 v31;
};
-union umc_info {
- struct atom_umc_info_v3_1 v31;
-};
-
int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev)
{
struct amdgpu_mode_info *mode_info = &adev->mode_info;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
index 288b97e..7689c96 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
@@ -28,6 +28,7 @@ bool amdgpu_atomfirmware_gpu_supports_virtualization(struct amdgpu_device *adev)
void amdgpu_atomfirmware_scratch_regs_init(struct amdgpu_device *adev);
int amdgpu_atomfirmware_allocate_fb_scratch(struct amdgpu_device *adev);
int amdgpu_atomfirmware_get_vram_width(struct amdgpu_device *adev);
+int amdgpu_atomfirmware_get_vram_type(struct amdgpu_device *adev);
int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev);
#endif
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 67cd1fe..ceab14f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -836,9 +836,9 @@ static int gmc_v9_0_sw_init(void *handle)
spin_lock_init(&adev->gmc.invalidate_lock);
+ adev->gmc.vram_type = amdgpu_atomfirmware_get_vram_type(adev);
switch (adev->asic_type) {
case CHIP_RAVEN:
- adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
if (adev->rev_id == 0x0 || adev->rev_id == 0x1) {
amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
} else {
@@ -849,8 +849,6 @@ static int gmc_v9_0_sw_init(void *handle)
}
break;
case CHIP_VEGA10:
- /* XXX Don't know how to get VRAM type yet. */
- adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM;
/*
* To fulfill 4-level page support,
* vm size is 256TB (48bit), maximum size of Vega10,
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index fe17b67..393d183 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -809,6 +809,7 @@ struct drm_amdgpu_info_firmware {
#define AMDGPU_VRAM_TYPE_GDDR5 5
#define AMDGPU_VRAM_TYPE_HBM 6
#define AMDGPU_VRAM_TYPE_DDR3 7
+#define AMDGPU_VRAM_TYPE_DDR4 8
struct drm_amdgpu_info_device {
/** PCI Device ID */
--
2.7.4
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