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drm/etnaviv: add further minor features and varyings count 

Export further minor feature bitmasks and the varyings count from
the GPU specifications registers to userspace.

Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
This commit is contained in:
Russell King 2016-01-24 17:36:04 +00:00 committed by Lucas Stach
parent 472f79dcf2
commit 602eb48966
3 changed files with 73 additions and 1 deletions
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62
drivers/gpu/drm/etnaviv/etnaviv_gpu.c
View File

@ -72,6 +72,14 @@ int etnaviv_gpu_get_param(struct etnaviv_gpu *gpu, u32 param, u64 *value)
*value = gpu->identity.minor_features3;
break;
case ETNAVIV_PARAM_GPU_FEATURES_5:
*value = gpu->identity.minor_features4;
break;
case ETNAVIV_PARAM_GPU_FEATURES_6:
*value = gpu->identity.minor_features5;
break;
case ETNAVIV_PARAM_GPU_STREAM_COUNT:
*value = gpu->identity.stream_count;
break;
@ -112,6 +120,10 @@ int etnaviv_gpu_get_param(struct etnaviv_gpu *gpu, u32 param, u64 *value)
*value = gpu->identity.num_constants;
break;
case ETNAVIV_PARAM_GPU_NUM_VARYINGS:
*value = gpu->identity.varyings_count;
break;
default:
DBG("%s: invalid param: %u", dev_name(gpu->dev), param);
return -EINVAL;
@ -131,10 +143,13 @@ static void etnaviv_hw_specs(struct etnaviv_gpu *gpu)
{
if (gpu->identity.minor_features0 &
chipMinorFeatures0_MORE_MINOR_FEATURES) {
u32 specs[2];
u32 specs[4];
unsigned int streams;
specs[0] = gpu_read(gpu, VIVS_HI_CHIP_SPECS);
specs[1] = gpu_read(gpu, VIVS_HI_CHIP_SPECS_2);
specs[2] = gpu_read(gpu, VIVS_HI_CHIP_SPECS_3);
specs[3] = gpu_read(gpu, VIVS_HI_CHIP_SPECS_4);
gpu->identity.stream_count = etnaviv_field(specs[0],
VIVS_HI_CHIP_SPECS_STREAM_COUNT);
@ -158,6 +173,15 @@ static void etnaviv_hw_specs(struct etnaviv_gpu *gpu)
VIVS_HI_CHIP_SPECS_2_INSTRUCTION_COUNT);
gpu->identity.num_constants = etnaviv_field(specs[1],
VIVS_HI_CHIP_SPECS_2_NUM_CONSTANTS);
gpu->identity.varyings_count = etnaviv_field(specs[2],
VIVS_HI_CHIP_SPECS_3_VARYINGS_COUNT);
/* This overrides the value from older register if non-zero */
streams = etnaviv_field(specs[3],
VIVS_HI_CHIP_SPECS_4_STREAM_COUNT);
if (streams)
gpu->identity.stream_count = streams;
}
/* Fill in the stream count if not specified */
@ -239,6 +263,30 @@ static void etnaviv_hw_specs(struct etnaviv_gpu *gpu)
if (gpu->identity.num_constants == 0)
gpu->identity.num_constants = 168;
if (gpu->identity.varyings_count == 0) {
if (gpu->identity.minor_features1 & chipMinorFeatures1_HALTI0)
gpu->identity.varyings_count = 12;
else
gpu->identity.varyings_count = 8;
}
/*
* For some cores, two varyings are consumed for position, so the
* maximum varying count needs to be reduced by one.
*/
if (etnaviv_is_model_rev(gpu, GC5000, 0x5434) ||
etnaviv_is_model_rev(gpu, GC4000, 0x5222) ||
etnaviv_is_model_rev(gpu, GC4000, 0x5245) ||
etnaviv_is_model_rev(gpu, GC4000, 0x5208) ||
etnaviv_is_model_rev(gpu, GC3000, 0x5435) ||
etnaviv_is_model_rev(gpu, GC2200, 0x5244) ||
etnaviv_is_model_rev(gpu, GC2100, 0x5108) ||
etnaviv_is_model_rev(gpu, GC2000, 0x5108) ||
etnaviv_is_model_rev(gpu, GC1500, 0x5246) ||
etnaviv_is_model_rev(gpu, GC880, 0x5107) ||
etnaviv_is_model_rev(gpu, GC880, 0x5106))
gpu->identity.varyings_count -= 1;
}
static void etnaviv_hw_identify(struct etnaviv_gpu *gpu)
@ -305,6 +353,8 @@ static void etnaviv_hw_identify(struct etnaviv_gpu *gpu)
gpu->identity.minor_features1 = 0;
gpu->identity.minor_features2 = 0;
gpu->identity.minor_features3 = 0;
gpu->identity.minor_features4 = 0;
gpu->identity.minor_features5 = 0;
} else
gpu->identity.minor_features0 =
gpu_read(gpu, VIVS_HI_CHIP_MINOR_FEATURE_0);
@ -317,6 +367,10 @@ static void etnaviv_hw_identify(struct etnaviv_gpu *gpu)
gpu_read(gpu, VIVS_HI_CHIP_MINOR_FEATURE_2);
gpu->identity.minor_features3 =
gpu_read(gpu, VIVS_HI_CHIP_MINOR_FEATURE_3);
gpu->identity.minor_features4 =
gpu_read(gpu, VIVS_HI_CHIP_MINOR_FEATURE_4);
gpu->identity.minor_features5 =
gpu_read(gpu, VIVS_HI_CHIP_MINOR_FEATURE_5);
}
/* GC600 idle register reports zero bits where modules aren't present */
@ -645,6 +699,10 @@ int etnaviv_gpu_debugfs(struct etnaviv_gpu *gpu, struct seq_file *m)
gpu->identity.minor_features2);
seq_printf(m, "\t minor_features3: 0x%08x\n",
gpu->identity.minor_features3);
seq_printf(m, "\t minor_features4: 0x%08x\n",
gpu->identity.minor_features4);
seq_printf(m, "\t minor_features5: 0x%08x\n",
gpu->identity.minor_features5);
seq_puts(m, "\tspecs\n");
seq_printf(m, "\t stream_count: %d\n",
@ -667,6 +725,8 @@ int etnaviv_gpu_debugfs(struct etnaviv_gpu *gpu, struct seq_file *m)
gpu->identity.instruction_count);
seq_printf(m, "\t num_constants: %d\n",
gpu->identity.num_constants);
seq_printf(m, "\t varyings_count: %d\n",
gpu->identity.varyings_count);
seq_printf(m, "\taxi: 0x%08x\n", axi);
seq_printf(m, "\tidle: 0x%08x\n", idle);

9
drivers/gpu/drm/etnaviv/etnaviv_gpu.h
View File

@ -46,6 +46,12 @@ struct etnaviv_chip_identity {
/* Supported minor feature 3 fields. */
u32 minor_features3;
/* Supported minor feature 4 fields. */
u32 minor_features4;
/* Supported minor feature 5 fields. */
u32 minor_features5;
/* Number of streams supported. */
u32 stream_count;
@ -75,6 +81,9 @@ struct etnaviv_chip_identity {
/* Buffer size */
u32 buffer_size;
/* Number of varyings */
u8 varyings_count;
};
struct etnaviv_event {

3
include/uapi/drm/etnaviv_drm.h
View File

@ -48,6 +48,8 @@ struct drm_etnaviv_timespec {
#define ETNAVIV_PARAM_GPU_FEATURES_2 0x05
#define ETNAVIV_PARAM_GPU_FEATURES_3 0x06
#define ETNAVIV_PARAM_GPU_FEATURES_4 0x07
#define ETNAVIV_PARAM_GPU_FEATURES_5 0x08
#define ETNAVIV_PARAM_GPU_FEATURES_6 0x09
#define ETNAVIV_PARAM_GPU_STREAM_COUNT 0x10
#define ETNAVIV_PARAM_GPU_REGISTER_MAX 0x11
@ -59,6 +61,7 @@ struct drm_etnaviv_timespec {
#define ETNAVIV_PARAM_GPU_BUFFER_SIZE 0x17
#define ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT 0x18
#define ETNAVIV_PARAM_GPU_NUM_CONSTANTS 0x19
#define ETNAVIV_PARAM_GPU_NUM_VARYINGS 0x1a
#define ETNA_MAX_PIPES 4