Commit Graph

10 Commits

Author SHA1 Message Date
Nicolas Frattaroli
c40b50c3cf drm/panthor: Implement reading shader_present from nvmem
On some platforms, notably MediaTek MT8196, the shader_present bitmask
in the Mali GPU register for it has cores enabled that may be faulty.
The true shader_present bitmask is found in an efuse instead.

Implement reading shader_present from an nvmem cell if one is present,
falling back to the Mali register if it's absent. The error codes are
trickled up through to the probe function so that probe deferral works.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patch.msgid.link/20251220-mt8196-shader-present-v2-3-45b1ff1dfab0@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
2026-01-13 17:06:15 +01:00
Karunika Choo
ab3490493c drm/panthor: Add support for Mali-G1 GPUs
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 <steven.price@arm.com>
Signed-off-by: Karunika Choo <karunika.choo@arm.com>
Link: https://patch.msgid.link/20251125125548.3282320-9-karunika.choo@arm.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
2025-11-26 10:56:19 +01:00
Karunika Choo
7d334f5c0b drm/panthor: Add architecture-specific function operations
Introduce architecture-specific function pointers to support
architecture-dependent behaviours. This patch adds the following
function pointers and updates their usage accordingly:

- soft_reset
- l2_power_on
- l2_power_off

Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Karunika Choo <karunika.choo@arm.com>
Link: https://patch.msgid.link/20251125125548.3282320-3-karunika.choo@arm.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
2025-11-26 10:56:18 +01:00
Karunika Choo
b1075ae1a3 drm/panthor: Add arch-specific panthor_hw binding
This patch adds the framework for binding to a specific panthor_hw
structure based on the architecture major value parsed from the GPU_ID
register. This is in preparation of enabling architecture-specific
behaviours based on GPU_ID. As such, it also splits the GPU_ID register
read operation into its own helper function.

This framework allows a single panthor_hw structure to be shared across
multiple architectures should there be minimal changes between them via
the arch_min and arch_max field of the panthor_hw_entry structure,
instead of duplicating the structure across multiple architectures.

Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Karunika Choo <karunika.choo@arm.com>
Link: https://patch.msgid.link/20251125125548.3282320-2-karunika.choo@arm.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
2025-11-26 10:56:18 +01:00
Jani Nikula
f6e8dc9edf drm: include drm_print.h where needed
There are a gazillion files that depend on drm_print.h being indirectly
included via drm_buddy.h, drm_mm.h, or ttm/ttm_resource.h. In
preparation for removing those includes, explicitly include drm_print.h
where needed.

Cc: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://lore.kernel.org/r/5fe67395907be33eb5199ea6d540e29fddee71c8.1761734313.git.jani.nikula@intel.com
2025-10-31 10:34:52 +02:00
Karunika Choo
f9c67b019b drm/panthor: Add support for Mali-Gx20 and Mali-Gx25 GPUs
This patch adds firmware binary and GPU model naming support for
Mali-Gx20 and Mali-Gx25 GPUs.

Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Karunika Choo <karunika.choo@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250807162633.3666310-8-karunika.choo@arm.com
2025-08-15 10:53:21 +01:00
Karunika Choo
3b1dc21d6d drm/panthor: Add support for Mali-Gx15 family of GPUs
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: Steven Price <steven.price@arm.com>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Karunika Choo <karunika.choo@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250807162633.3666310-5-karunika.choo@arm.com
2025-08-15 10:51:24 +01:00
Karunika Choo
2c0d0a81c0 drm/panthor: Add support for Mali-G710, Mali-G510 and Mali-G310
This patch adds GPU model name and FW binary support for Mali-G710,
Mali-G510, and Mali-G310.

Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Karunika Choo <karunika.choo@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250807162633.3666310-4-karunika.choo@arm.com
2025-08-15 10:51:08 +01:00
Karunika Choo
c012663b17 drm/panthor: Simplify getting the GPU model name
This patch replaces the panthor_model structure with a simple switch
case based on the product_id which is in the format of:
        ((arch_major << 24) | product_major)

This simplifies comparison and allows extending of the function to
accommodate naming differences based on supported GPU features.

Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Karunika Choo <karunika.choo@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250807162633.3666310-3-karunika.choo@arm.com
2025-08-15 10:50:56 +01:00
Karunika Choo
94332524b5 drm/panthor: Add panthor_hw and move gpu_info initialization into it
This patch introduces panthor_hw and moves the initialization of the
gpu_info struct into panthor_hw.c in preparation of handling future GPU
register and naming changes.

Future GPU support can be added by extending panthor_gpu_info_init()
with the necessary register reads behind GPU architecture version guards
if the change is minor. For more complex changes, the function can be
forked and the appropriate function will need to be called based on the
GPU architecture version.

Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Karunika Choo <karunika.choo@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250807162633.3666310-2-karunika.choo@arm.com
2025-08-15 10:50:43 +01:00