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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Nov 2025 12:57:15.1065 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 26a73ceb-675d-43c6-3255-08de2c22286e 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: AM4PEPF00027A66.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI0PR08MB11514 Content-Type: text/plain; charset="utf-8" Add support for Mali-G1 GPUs (CSF architecture v14), introducing a new panthor_hw_arch_v14 entry with reset and L2 power management operations via the PWR_CONTROL block. Mali-G1 introduces a dedicated PWR_CONTROL block for managing resets and power domains. panthor_gpu_info_init() is updated to use this block for L2, tiler, and shader domain present register reads. Reviewed-by: Steven Price Signed-off-by: Karunika Choo --- v4: * Picked up R-b from Steve. v3: * Fixed some includes. v2: * Removed feature bits usage. * Check panthor_hw_has_pwr_ctrl() to read the correct *_PRESENT registers instead of reading reserved registers on newer GPUs. --- drivers/gpu/drm/panthor/panthor_fw.c | 1 + drivers/gpu/drm/panthor/panthor_hw.c | 35 ++++++++++++++++++++++++---- 2 files changed, 32 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/panthor/panthor_fw.c b/drivers/gpu/drm/panthor= /panthor_fw.c index 0fb33489069a..1a5e3c1a27fb 100644 --- a/drivers/gpu/drm/panthor/panthor_fw.c +++ b/drivers/gpu/drm/panthor/panthor_fw.c @@ -1503,3 +1503,4 @@ MODULE_FIRMWARE("arm/mali/arch10.12/mali_csffw.bin"); MODULE_FIRMWARE("arm/mali/arch11.8/mali_csffw.bin"); MODULE_FIRMWARE("arm/mali/arch12.8/mali_csffw.bin"); MODULE_FIRMWARE("arm/mali/arch13.8/mali_csffw.bin"); +MODULE_FIRMWARE("arm/mali/arch14.8/mali_csffw.bin"); diff --git a/drivers/gpu/drm/panthor/panthor_hw.c b/drivers/gpu/drm/panthor= /panthor_hw.c index 5d220a0e2c22..87ebb7ae42c4 100644 --- a/drivers/gpu/drm/panthor/panthor_hw.c +++ b/drivers/gpu/drm/panthor/panthor_hw.c @@ -6,6 +6,7 @@ #include "panthor_device.h" #include "panthor_gpu.h" #include "panthor_hw.h" +#include "panthor_pwr.h" #include "panthor_regs.h" #define GPU_PROD_ID_MAKE(arch_major, prod_major) \ @@ -31,12 +32,25 @@ static struct panthor_hw panthor_hw_arch_v10 =3D { }, }; +static struct panthor_hw panthor_hw_arch_v14 =3D { + .ops =3D { + .soft_reset =3D panthor_pwr_reset_soft, + .l2_power_off =3D panthor_pwr_l2_power_off, + .l2_power_on =3D panthor_pwr_l2_power_on, + }, +}; + static struct panthor_hw_entry panthor_hw_match[] =3D { { .arch_min =3D 10, .arch_max =3D 13, .hwdev =3D &panthor_hw_arch_v10, }, + { + .arch_min =3D 14, + .arch_max =3D 14, + .hwdev =3D &panthor_hw_arch_v14, + }, }; static char *get_gpu_model_name(struct panthor_device *ptdev) @@ -84,6 +98,12 @@ static char *get_gpu_model_name(struct panthor_device *p= tdev) fallthrough; case GPU_PROD_ID_MAKE(13, 1): return "Mali-G625"; + case GPU_PROD_ID_MAKE(14, 0): + return "Mali-G1-Ultra"; + case GPU_PROD_ID_MAKE(14, 1): + return "Mali-G1-Premium"; + case GPU_PROD_ID_MAKE(14, 3): + return "Mali-G1-Pro"; } return "(Unknown Mali GPU)"; @@ -110,12 +130,19 @@ static void panthor_gpu_info_init(struct panthor_devi= ce *ptdev) ptdev->gpu_info.as_present =3D gpu_read(ptdev, GPU_AS_PRESENT); - ptdev->gpu_info.shader_present =3D gpu_read64(ptdev, GPU_SHADER_PRESENT); - ptdev->gpu_info.tiler_present =3D gpu_read64(ptdev, GPU_TILER_PRESENT); - ptdev->gpu_info.l2_present =3D gpu_read64(ptdev, GPU_L2_PRESENT); - /* Introduced in arch 11.x */ ptdev->gpu_info.gpu_features =3D gpu_read64(ptdev, GPU_FEATURES); + + if (panthor_hw_has_pwr_ctrl(ptdev)) { + /* Introduced in arch 14.x */ + ptdev->gpu_info.l2_present =3D gpu_read64(ptdev, PWR_L2_PRESENT); + ptdev->gpu_info.tiler_present =3D gpu_read64(ptdev, PWR_TILER_PRESENT); + ptdev->gpu_info.shader_present =3D gpu_read64(ptdev, PWR_SHADER_PRESENT); + } else { + ptdev->gpu_info.shader_present =3D gpu_read64(ptdev, GPU_SHADER_PRESENT); + ptdev->gpu_info.tiler_present =3D gpu_read64(ptdev, GPU_TILER_PRESENT); + ptdev->gpu_info.l2_present =3D gpu_read64(ptdev, GPU_L2_PRESENT); + } } static void panthor_hw_info_init(struct panthor_device *ptdev) -- 2.49.0