On Mon, Oct 7, 2019 at 12:08 PM Messinger, Ori <Ori.Messinger@xxxxxxx> wrote:
>
> 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.
>
> v2: Use correct bit masking, and cache vram_vendor in gmc
> v3: Drop unused functions for vram width, type, and vendor
>
> Change-Id: Iaa3ccf3f483ee6536281fe777772ba241a6e0d43
> Signed-off-by: Ori Messinger <ori.messinger@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
> ---
> .../gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 14 +++++-
> .../gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h | 2 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 1 +
> drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 43 +++++++++++++++++++
> drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 6 ++-
> drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 6 ++-
> 6 files changed, 65 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..39fd8ae5a822 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) & 0xF;
> + 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) & 0xF;
> + if (vram_vendor)
> + *vram_vendor = mem_vendor;
> break;
> default:
> return -EINVAL;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
> index 82819f03e444..53449fc7baf4 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
> @@ -30,7 +30,7 @@ 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_info(struct amdgpu_device *adev,
> - int *vram_width, int *vram_type);
> + int *vram_width, int *vram_type, int *vram_vendor);
> 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_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
> index d591b375d1df..555d8e57fae9 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
> @@ -157,6 +157,7 @@ struct amdgpu_gmc {
> uint32_t fw_version;
> struct amdgpu_irq_src vm_fault;
> uint32_t vram_type;
> + uint8_t vram_vendor;
> uint32_t srbm_soft_reset;
> bool prt_warning;
> uint64_t stolen_size;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
> index 8887b3964e43..82a3299e53c0 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 (adev->gmc.vram_vendor) {
> + 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..fb48622c2abd 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);
> @@ -632,13 +632,15 @@ 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
> adev->gmc.vram_width = 1 * 128; /* numchan * chansize */
>
> adev->gmc.vram_type = vram_type;
> + adev->gmc.vram_vendor = vram_vendor;
> switch (adev->asic_type) {
> case CHIP_NAVI10:
> case CHIP_NAVI14:
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index 4b11f7e61004..defeb6afcb5d 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
> @@ -965,6 +966,7 @@ static int gmc_v9_0_sw_init(void *handle)
> }
>
> adev->gmc.vram_type = vram_type;
> + adev->gmc.vram_vendor = vram_vendor;
> switch (adev->asic_type) {
> case CHIP_RAVEN:
> adev->num_vmhubs = 2;
> --
> 2.17.1
>
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