diff options
Diffstat (limited to 'drivers/gpu/drm/panthor/panthor_gpu.c')
| -rw-r--r-- | drivers/gpu/drm/panthor/panthor_gpu.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/drivers/gpu/drm/panthor/panthor_gpu.c b/drivers/gpu/drm/panthor/panthor_gpu.c index db69449a5be0..eda670229184 100644 --- a/drivers/gpu/drm/panthor/panthor_gpu.c +++ b/drivers/gpu/drm/panthor/panthor_gpu.c @@ -15,6 +15,7 @@ #include <drm/drm_drv.h> #include <drm/drm_managed.h> +#include <drm/drm_print.h> #include "panthor_device.h" #include "panthor_gpu.h" @@ -52,6 +53,28 @@ static void panthor_gpu_coherency_set(struct panthor_device *ptdev) ptdev->coherent ? GPU_COHERENCY_PROT_BIT(ACE_LITE) : GPU_COHERENCY_NONE); } +static void panthor_gpu_l2_config_set(struct panthor_device *ptdev) +{ + const struct panthor_soc_data *data = ptdev->soc_data; + u32 l2_config; + u32 i; + + if (!data || !data->asn_hash_enable) + return; + + if (GPU_ARCH_MAJOR(ptdev->gpu_info.gpu_id) < 11) { + drm_err(&ptdev->base, "Custom ASN hash not supported by the device"); + return; + } + + for (i = 0; i < ARRAY_SIZE(data->asn_hash); i++) + gpu_write(ptdev, GPU_ASN_HASH(i), data->asn_hash[i]); + + l2_config = gpu_read(ptdev, GPU_L2_CONFIG); + l2_config |= GPU_L2_CONFIG_ASN_HASH_ENABLE; + gpu_write(ptdev, GPU_L2_CONFIG, l2_config); +} + static void panthor_gpu_irq_handler(struct panthor_device *ptdev, u32 status) { gpu_write(ptdev, GPU_INT_CLEAR, status); @@ -241,8 +264,9 @@ int panthor_gpu_l2_power_on(struct panthor_device *ptdev) hweight64(ptdev->gpu_info.shader_present)); } - /* Set the desired coherency mode before the power up of L2 */ + /* Set the desired coherency mode and L2 config before the power up of L2 */ panthor_gpu_coherency_set(ptdev); + panthor_gpu_l2_config_set(ptdev); return panthor_gpu_power_on(ptdev, L2, 1, 20000); } |