The vram vendor can be found as a separate sysfs file at:
/sys/class/drm/card[X]/device/mem_info_vram_vendor
The vram vendor is displayed as a string value.

Change-Id: Iaa3ccf3f483ee6536281fe777772ba241a6e0d43
Signed-off-by: Ori Messinger <ori.messin...@amd.com>
---
 .../gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c  | 63 ++++++++++++++++++-
 .../gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h  |  5 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c  | 43 +++++++++++++
 drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c        |  5 +-
 drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c         |  5 +-
 5 files changed, 114 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
index 19913c39588b..59009726494b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -169,8 +169,11 @@ static int convert_atom_mem_type_to_vram_type(struct 
amdgpu_device *adev,
        return vram_type;
 }
 
-int amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev,
-                                     int *vram_width, int *vram_type)
+
+int
+amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev,
+                                 int *vram_width, int *vram_type,
+                                 int *vram_vendor)
 {
        struct amdgpu_mode_info *mode_info = &adev->mode_info;
        int index, i = 0;
@@ -180,6 +183,7 @@ int amdgpu_atomfirmware_get_vram_info(struct amdgpu_device 
*adev,
        union vram_module *vram_module;
        u8 frev, crev;
        u8 mem_type;
+       u8 mem_vendor;
        u32 mem_channel_number;
        u32 mem_channel_width;
        u32 module_id;
@@ -231,6 +235,9 @@ int amdgpu_atomfirmware_get_vram_info(struct amdgpu_device 
*adev,
                                mem_channel_width = 
vram_module->v9.channel_width;
                                if (vram_width)
                                        *vram_width = mem_channel_number * (1 
<< mem_channel_width);
+                               mem_vendor = vram_module->v9.vender_rev_id;
+                               if (vram_vendor)
+                                       *vram_vendor = mem_vendor;
                                break;
                        case 4:
                                if (module_id > vram_info->v24.vram_module_num)
@@ -248,6 +255,9 @@ int amdgpu_atomfirmware_get_vram_info(struct amdgpu_device 
*adev,
                                mem_channel_width = 
vram_module->v10.channel_width;
                                if (vram_width)
                                        *vram_width = mem_channel_number * (1 
<< mem_channel_width);
+                               mem_vendor = vram_module->v10.vender_rev_id;
+                               if (vram_vendor)
+                                       *vram_vendor = mem_vendor;
                                break;
                        default:
                                return -EINVAL;
@@ -259,6 +269,55 @@ int amdgpu_atomfirmware_get_vram_info(struct amdgpu_device 
*adev,
        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, vram_vendor = 0;
+       int r = amdgpu_atomfirmware_get_vram_info(adev,
+       &vram_width, &vram_type, &vram_vendor);
+
+       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, vram_vendor = 0;
+       int r = amdgpu_atomfirmware_get_vram_info(adev,
+       &vram_width, &vram_type, &vram_vendor);
+
+       if (r)
+               return 0;
+
+       return vram_type;
+}
+
+/*
+ * Return vram vendor from either integrated system info table
+ * or umc info table, if available, or 0 (TYPE_UNKNOWN) if not
+ */
+int amdgpu_atomfirmware_get_vram_vendor(struct amdgpu_device *adev)
+{
+       int vram_width = 0, vram_type = 0, vram_vendor = 0;
+       int r = amdgpu_atomfirmware_get_vram_info(adev,
+       &vram_width, &vram_type, &vram_vendor);
+
+       if (r)
+               return 0;
+
+       return vram_vendor;
+
+}
+
 /*
  * 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
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
index 82819f03e444..738e538ee26c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
@@ -30,7 +30,10 @@ 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_info(struct amdgpu_device *adev,
-                                     int *vram_width, int *vram_type);
+       int *vram_width, int *vram_type, int *vram_vendor);
+int amdgpu_atomfirmware_get_vram_width(struct amdgpu_device *adev);
+int amdgpu_atomfirmware_get_vram_type(struct amdgpu_device *adev);
+int amdgpu_atomfirmware_get_vram_vendor(struct amdgpu_device *adev);
 int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev);
 int amdgpu_atomfirmware_get_gfx_info(struct amdgpu_device *adev);
 bool amdgpu_atomfirmware_mem_ecc_supported(struct amdgpu_device *adev);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
index 8887b3964e43..1e8dffe3323a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
@@ -24,6 +24,8 @@
 
 #include "amdgpu.h"
 #include "amdgpu_vm.h"
+#include "amdgpu_atomfirmware.h"
+#include "atom.h"
 
 struct amdgpu_vram_mgr {
        struct drm_mm mm;
@@ -102,6 +104,39 @@ static ssize_t amdgpu_mem_info_vis_vram_used_show(struct 
device *dev,
                amdgpu_vram_mgr_vis_usage(&adev->mman.bdev.man[TTM_PL_VRAM]));
 }
 
+static ssize_t amdgpu_mem_info_vram_vendor(struct device *dev,
+                                                struct device_attribute *attr,
+                                                char *buf)
+{
+       struct drm_device *ddev = dev_get_drvdata(dev);
+       struct amdgpu_device *adev = ddev->dev_private;
+
+       switch (amdgpu_atomfirmware_get_vram_vendor(adev)) {
+       case SAMSUNG:
+               return snprintf(buf, PAGE_SIZE, "samsung\n");
+       case INFINEON:
+               return snprintf(buf, PAGE_SIZE, "infineon\n");
+       case ELPIDA:
+               return snprintf(buf, PAGE_SIZE, "elpida\n");
+       case ETRON:
+               return snprintf(buf, PAGE_SIZE, "etron\n");
+       case NANYA:
+               return snprintf(buf, PAGE_SIZE, "nanya\n");
+       case HYNIX:
+               return snprintf(buf, PAGE_SIZE, "hynix\n");
+       case MOSEL:
+               return snprintf(buf, PAGE_SIZE, "mosel\n");
+       case WINBOND:
+               return snprintf(buf, PAGE_SIZE, "winbond\n");
+       case ESMT:
+               return snprintf(buf, PAGE_SIZE, "esmt\n");
+       case MICRON:
+               return snprintf(buf, PAGE_SIZE, "micron\n");
+       default:
+               return snprintf(buf, PAGE_SIZE, "unknown\n");
+       }
+}
+
 static DEVICE_ATTR(mem_info_vram_total, S_IRUGO,
                   amdgpu_mem_info_vram_total_show, NULL);
 static DEVICE_ATTR(mem_info_vis_vram_total, S_IRUGO,
@@ -110,6 +145,8 @@ static DEVICE_ATTR(mem_info_vram_used, S_IRUGO,
                   amdgpu_mem_info_vram_used_show, NULL);
 static DEVICE_ATTR(mem_info_vis_vram_used, S_IRUGO,
                   amdgpu_mem_info_vis_vram_used_show, NULL);
+static DEVICE_ATTR(mem_info_vram_vendor, S_IRUGO,
+                  amdgpu_mem_info_vram_vendor, NULL);
 
 /**
  * amdgpu_vram_mgr_init - init VRAM manager and DRM MM
@@ -155,6 +192,11 @@ static int amdgpu_vram_mgr_init(struct 
ttm_mem_type_manager *man,
                DRM_ERROR("Failed to create device file 
mem_info_vis_vram_used\n");
                return ret;
        }
+       ret = device_create_file(adev->dev, &dev_attr_mem_info_vram_vendor);
+       if (ret) {
+               DRM_ERROR("Failed to create device file 
mem_info_vram_vendor\n");
+               return ret;
+       }
 
        return 0;
 }
@@ -181,6 +223,7 @@ static int amdgpu_vram_mgr_fini(struct ttm_mem_type_manager 
*man)
        device_remove_file(adev->dev, &dev_attr_mem_info_vis_vram_total);
        device_remove_file(adev->dev, &dev_attr_mem_info_vram_used);
        device_remove_file(adev->dev, &dev_attr_mem_info_vis_vram_used);
+       device_remove_file(adev->dev, &dev_attr_mem_info_vram_vendor);
        return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c 
b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
index cb3f61873baa..c434483a7791 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
@@ -624,7 +624,7 @@ static unsigned gmc_v10_0_get_vbios_fb_size(struct 
amdgpu_device *adev)
 
 static int gmc_v10_0_sw_init(void *handle)
 {
-       int r, vram_width = 0, vram_type = 0;
+       int r, vram_width = 0, vram_type = 0, vram_vendor = 0;
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
        gfxhub_v2_0_init(adev);
@@ -632,7 +632,8 @@ static int gmc_v10_0_sw_init(void *handle)
 
        spin_lock_init(&adev->gmc.invalidate_lock);
 
-       r = amdgpu_atomfirmware_get_vram_info(adev, &vram_width, &vram_type);
+       r = amdgpu_atomfirmware_get_vram_info(adev,
+               &vram_width, &vram_type, &vram_vendor);
        if (!amdgpu_emu_mode)
                adev->gmc.vram_width = vram_width;
        else
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c 
b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 4b11f7e61004..bcd305813788 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -930,7 +930,7 @@ static unsigned gmc_v9_0_get_vbios_fb_size(struct 
amdgpu_device *adev)
 
 static int gmc_v9_0_sw_init(void *handle)
 {
-       int r, vram_width = 0, vram_type = 0;
+       int r, vram_width = 0, vram_type = 0, vram_vendor = 0;
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
        gfxhub_v1_0_init(adev);
@@ -941,7 +941,8 @@ static int gmc_v9_0_sw_init(void *handle)
 
        spin_lock_init(&adev->gmc.invalidate_lock);
 
-       r = amdgpu_atomfirmware_get_vram_info(adev, &vram_width, &vram_type);
+       r = amdgpu_atomfirmware_get_vram_info(adev,
+               &vram_width, &vram_type, &vram_vendor);
        if (amdgpu_sriov_vf(adev))
                /* For Vega10 SR-IOV, vram_width can't be read from ATOM as 
RAVEN,
                 * and DF related registers is not readable, seems hardcord is 
the
-- 
2.17.1

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