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From 8a506d87d40632dd9d40d4815f0388b28ac6614b Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Fri, 20 Sep 2019 14:43:44 -0500
Subject: [PATCH 3919/4256] drm/amdgpu/atomfirmware: use proper index for
querying vram type (v3)
The index is stored in scratch register 4 after asic init. Use
that index. No functional change since all asics in a family
use the same type of vram (G5, G6, HBM) and that is all we use
at the monent, but if we ever need to query other info, we will
now have the proper index.
v2: module array is variable sized, handle that.
v3: fix off by one in array handling
Reviewed-by: Xiaojie Yuan <xiaojie.yuan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
.../gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 158 ++++++++++--------
1 file changed, 88 insertions(+), 70 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
index 606ed819f355..e0e67a53fb3c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -120,65 +120,14 @@ union vram_info {
struct atom_vram_info_header_v2_3 v23;
struct atom_vram_info_header_v2_4 v24;
};
-/*
- * Return vram width from integrated system info table, if available,
- * or 0 if not.
- */
-int amdgpu_atomfirmware_get_vram_width(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 vram_info *vram_info;
- u32 mem_channel_number;
- u32 mem_channel_width;
- u8 frev, crev;
-
- 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,
- vram_info);
-
- /* get any igp specific overrides */
- 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_channel_number = igp_info->v11.umachannelnumber;
- /* channel width is 64 */
- return mem_channel_number * 64;
- default:
- return 0;
- }
- } else {
- vram_info = (union vram_info *)
- (mode_info->atom_context->bios + data_offset);
- switch (crev) {
- case 3:
- mem_channel_number = vram_info->v23.vram_module[0].channel_num;
- mem_channel_width = vram_info->v23.vram_module[0].channel_width;
- return mem_channel_number * (1 << mem_channel_width);
- case 4:
- mem_channel_number = vram_info->v24.vram_module[0].channel_num;
- mem_channel_width = vram_info->v24.vram_module[0].channel_width;
- return mem_channel_number * (1 << mem_channel_width);
- default:
- return 0;
- }
- }
- }
- return 0;
-}
+union vram_module {
+ struct atom_vram_module_v9 v9;
+ struct atom_vram_module_v10 v10;
+};
-static int convert_atom_mem_type_to_vram_type (struct amdgpu_device *adev,
- int atom_mem_type)
+static int convert_atom_mem_type_to_vram_type(struct amdgpu_device *adev,
+ int atom_mem_type)
{
int vram_type;
@@ -219,19 +168,23 @@ static int convert_atom_mem_type_to_vram_type (struct amdgpu_device *adev,
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)
+
+static int
+amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev,
+ int *vram_width, int *vram_type)
{
struct amdgpu_mode_info *mode_info = &adev->mode_info;
- int index;
+ int index, i = 0;
u16 data_offset, size;
union igp_info *igp_info;
union vram_info *vram_info;
+ union vram_module *vram_module;
u8 frev, crev;
u8 mem_type;
+ u32 mem_channel_number;
+ u32 mem_channel_width;
+ u32 module_id;
+
if (adev->flags & AMD_IS_APU)
index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
@@ -239,6 +192,7 @@ int amdgpu_atomfirmware_get_vram_type(struct amdgpu_device *adev)
else
index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
vram_info);
+
if (amdgpu_atom_parse_data_header(mode_info->atom_context,
index, &size,
&frev, &crev, &data_offset)) {
@@ -247,30 +201,94 @@ int amdgpu_atomfirmware_get_vram_type(struct amdgpu_device *adev)
(mode_info->atom_context->bios + data_offset);
switch (crev) {
case 11:
+ mem_channel_number = igp_info->v11.umachannelnumber;
+ /* channel width is 64 */
+ if (vram_width)
+ *vram_width = mem_channel_number * 64;
mem_type = igp_info->v11.memorytype;
- return convert_atom_mem_type_to_vram_type(adev, mem_type);
+ if (vram_type)
+ *vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
+ break;
default:
- return 0;
+ return -EINVAL;
}
} else {
vram_info = (union vram_info *)
(mode_info->atom_context->bios + data_offset);
+ module_id = (RREG32(adev->bios_scratch_reg_offset + 4) & 0x00ff0000) >> 16;
switch (crev) {
case 3:
- mem_type = vram_info->v23.vram_module[0].memory_type;
- return convert_atom_mem_type_to_vram_type(adev, mem_type);
+ if (module_id > vram_info->v23.vram_module_num)
+ module_id = 0;
+ vram_module = (union vram_module *)vram_info->v23.vram_module;
+ while (i < module_id) {
+ vram_module = (union vram_module *)
+ ((u8 *)vram_module + vram_module->v9.vram_module_size);
+ i++;
+ }
+ mem_type = vram_module->v9.memory_type;
+ if (vram_type)
+ *vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
+ mem_channel_number = vram_module->v9.channel_num;
+ mem_channel_width = vram_module->v9.channel_width;
+ if (vram_width)
+ *vram_width = mem_channel_number * (1 << mem_channel_width);
+ break;
case 4:
- mem_type = vram_info->v24.vram_module[0].memory_type;
- return convert_atom_mem_type_to_vram_type(adev, mem_type);
+ if (module_id > vram_info->v24.vram_module_num)
+ module_id = 0;
+ vram_module = (union vram_module *)vram_info->v24.vram_module;
+ while (i < module_id) {
+ vram_module = (union vram_module *)
+ ((u8 *)vram_module + vram_module->v10.vram_module_size);
+ i++;
+ }
+ mem_type = vram_module->v10.memory_type;
+ if (vram_type)
+ *vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
+ mem_channel_number = vram_module->v10.channel_num;
+ mem_channel_width = vram_module->v10.channel_width;
+ if (vram_width)
+ *vram_width = mem_channel_number * (1 << mem_channel_width);
+ break;
default:
- return 0;
+ return -EINVAL;
}
}
+
}
return 0;
}
+/*
+ * Return vram width from integrated system info table, if available,
+ * or 0 if not.
+ */
+int amdgpu_atomfirmware_get_vram_width(struct amdgpu_device *adev)
+{
+ int vram_width = 0, vram_type = 0;
+ int r = amdgpu_atomfirmware_get_vram_info(adev, &vram_width, &vram_type);
+ if (r)
+ return 0;
+
+ return vram_width;
+}
+
+/*
+ * 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)
+{
+ int vram_width = 0, vram_type = 0;
+ int r = amdgpu_atomfirmware_get_vram_info(adev, &vram_width, &vram_type);
+ if (r)
+ return 0;
+
+ return vram_type;
+}
+
/*
* Return true if vbios enabled ecc by default, if umc info table is available
* or false if ecc is not enabled or umc info table is not available
--
2.17.1
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