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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Jul 2025 08:54:03.0971 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 43edd881-3f0d-4ce3-a8a0-08ddca8fa3b1 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[4.158.2.129];Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: AMS0EPF000001AC.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR08MB5646 On 24/07/2025 06:40, Chia-I Wu wrote: > On Mon, Jul 21, 2025 at 3:13 PM Karunika Choo wrote: >> >> Mali-Gx15 introduces a new GPU_FEATURES register that provides >> information about GPU-wide supported features. The register value will >> be passed on to userspace via gpu_info. >> >> Additionally, Mali-Gx15 presents an 'Immortalis' naming variant >> depending on the shader core count and presence of Ray Intersection >> feature support. >> >> This patch adds: >> - support for correctly identifying the model names for Mali-Gx15 GPUs. >> - arch 11.8 FW binary support >> >> Reviewed-by: Liviu Dudau >> Signed-off-by: Karunika Choo >> --- >> drivers/gpu/drm/panthor/panthor_fw.c | 1 + >> drivers/gpu/drm/panthor/panthor_hw.c | 15 +++++++++++++++ >> drivers/gpu/drm/panthor/panthor_regs.h | 3 +++ >> include/uapi/drm/panthor_drm.h | 3 +++ >> 4 files changed, 22 insertions(+) >> >> diff --git a/drivers/gpu/drm/panthor/panthor_fw.c b/drivers/gpu/drm/panthor/panthor_fw.c >> index b7b454d16f12..fa6e0b48a0b2 100644 >> --- a/drivers/gpu/drm/panthor/panthor_fw.c >> +++ b/drivers/gpu/drm/panthor/panthor_fw.c >> @@ -1404,3 +1404,4 @@ int panthor_fw_init(struct panthor_device *ptdev) >> MODULE_FIRMWARE("arm/mali/arch10.8/mali_csffw.bin"); >> MODULE_FIRMWARE("arm/mali/arch10.10/mali_csffw.bin"); >> MODULE_FIRMWARE("arm/mali/arch10.12/mali_csffw.bin"); >> +MODULE_FIRMWARE("arm/mali/arch11.8/mali_csffw.bin"); >> diff --git a/drivers/gpu/drm/panthor/panthor_hw.c b/drivers/gpu/drm/panthor/panthor_hw.c >> index 7f138974d43b..a7583342d797 100644 >> --- a/drivers/gpu/drm/panthor/panthor_hw.c >> +++ b/drivers/gpu/drm/panthor/panthor_hw.c >> @@ -13,6 +13,9 @@ static char *get_gpu_model_name(struct panthor_device *ptdev) >> const u32 gpu_id = ptdev->gpu_info.gpu_id; >> const u32 product_id = GPU_PROD_ID_MAKE(GPU_ARCH_MAJOR(gpu_id), >> GPU_PROD_MAJOR(gpu_id)); >> + const bool ray_intersection = !!(ptdev->gpu_info.gpu_features & >> + GPU_FEATURES_RAY_INTERSECTION); >> + const u8 shader_core_count = hweight64(ptdev->gpu_info.shader_present); >> >> switch (product_id) { >> case GPU_PROD_ID_MAKE(10, 2): >> @@ -23,6 +26,15 @@ static char *get_gpu_model_name(struct panthor_device *ptdev) >> return "Mali-G510"; >> case GPU_PROD_ID_MAKE(10, 4): >> return "Mali-G310"; >> + case GPU_PROD_ID_MAKE(11, 2): >> + if (shader_core_count > 10 && ray_intersection) >> + return "Mali-G715-Immortalis"; >> + else if (shader_core_count >= 7) >> + return "Mali-G715"; >> + >> + fallthrough; >> + case GPU_PROD_ID_MAKE(11, 3): >> + return "Mali-G615"; >> } >> >> return "(Unknown Mali GPU)"; >> @@ -53,6 +65,9 @@ static void panthor_gpu_info_init(struct panthor_device *ptdev) >> ptdev->gpu_info.shader_present = gpu_read64(ptdev, GPU_SHADER_PRESENT); >> ptdev->gpu_info.tiler_present = gpu_read64(ptdev, GPU_TILER_PRESENT); >> ptdev->gpu_info.l2_present = gpu_read64(ptdev, GPU_L2_PRESENT); >> + >> + /* Introduced in arch 11.x */ >> + ptdev->gpu_info.gpu_features = gpu_read64(ptdev, GPU_FEATURES); > Is this guaranteed to be 0 prior to v11? > Hi, This is guaranteed to be zero as it was a reserved register prior to v11. Kind regards, Karunika>> } >> >> static void panthor_hw_info_init(struct panthor_device *ptdev) >> diff --git a/drivers/gpu/drm/panthor/panthor_regs.h b/drivers/gpu/drm/panthor/panthor_regs.h >> index 48bbfd40138c..8bee76d01bf8 100644 >> --- a/drivers/gpu/drm/panthor/panthor_regs.h >> +++ b/drivers/gpu/drm/panthor/panthor_regs.h >> @@ -70,6 +70,9 @@ >> #define GPU_PWR_OVERRIDE0 0x54 >> #define GPU_PWR_OVERRIDE1 0x58 >> >> +#define GPU_FEATURES 0x60 >> +#define GPU_FEATURES_RAY_INTERSECTION BIT(2) >> + >> #define GPU_TIMESTAMP_OFFSET 0x88 >> #define GPU_CYCLE_COUNT 0x90 >> #define GPU_TIMESTAMP 0x98 >> diff --git a/include/uapi/drm/panthor_drm.h b/include/uapi/drm/panthor_drm.h >> index e1f43deb7eca..467d365ed7ba 100644 >> --- a/include/uapi/drm/panthor_drm.h >> +++ b/include/uapi/drm/panthor_drm.h >> @@ -327,6 +327,9 @@ struct drm_panthor_gpu_info { >> >> /** @pad: MBZ. */ >> __u32 pad; >> + >> + /** @gpu_features: Bitmask describing supported GPU-wide features */ >> + __u64 gpu_features; >> }; >> >> /** >> -- >> 2.49.0 >>