xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/panfrost: Export all GPU feature registers

Browse Source 
Midgard/Bifrost GPUs have a bunch of feature registers providing details
of what the hardware supports. Panfrost already reads these, this patch
exports them all to user space so that the jobs created by the user space
driver can be tuned for the particular hardware implementation.

Signed-off-by: Steven Price <steven.price@arm.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190724105626.53552-1-steven.price@arm.com
This commit is contained in:
Steven Price
2019-07-24 11:56:26 +01:00
committed by Rob Herring
parent a1b27e9922
commit 4bced8bea0
4 changed files with 77 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
drivers/gpu/drm/panfrost/panfrost_drv.c
View File

@@ -32,10 +32,42 @@ static int panfrost_ioctl_get_param(struct drm_device *ddev, void *data, struct
if (param->pad != 0)
return -EINVAL;
#define PANFROST_FEATURE(name, member) \
case DRM_PANFROST_PARAM_ ## name: \
param->value = pfdev->features.member; \
break
#define PANFROST_FEATURE_ARRAY(name, member, max) \
case DRM_PANFROST_PARAM_ ## name ## 0 ... \
DRM_PANFROST_PARAM_ ## name ## max: \
param->value = pfdev->features.member[param->param - \
DRM_PANFROST_PARAM_ ## name ## 0]; \
break
switch (param->param) {
case DRM_PANFROST_PARAM_GPU_PROD_ID:
param->value = pfdev->features.id;
break;
PANFROST_FEATURE(GPU_PROD_ID, id);
PANFROST_FEATURE(GPU_REVISION, revision);
PANFROST_FEATURE(SHADER_PRESENT, shader_present);
PANFROST_FEATURE(TILER_PRESENT, tiler_present);
PANFROST_FEATURE(L2_PRESENT, l2_present);
PANFROST_FEATURE(STACK_PRESENT, stack_present);
PANFROST_FEATURE(AS_PRESENT, as_present);
PANFROST_FEATURE(JS_PRESENT, js_present);
PANFROST_FEATURE(L2_FEATURES, l2_features);
PANFROST_FEATURE(CORE_FEATURES, core_features);
PANFROST_FEATURE(TILER_FEATURES, tiler_features);
PANFROST_FEATURE(MEM_FEATURES, mem_features);
PANFROST_FEATURE(MMU_FEATURES, mmu_features);
PANFROST_FEATURE(THREAD_FEATURES, thread_features);
PANFROST_FEATURE(MAX_THREADS, max_threads);
PANFROST_FEATURE(THREAD_MAX_WORKGROUP_SZ,
thread_max_workgroup_sz);
PANFROST_FEATURE(THREAD_MAX_BARRIER_SZ,
thread_max_barrier_sz);
PANFROST_FEATURE(COHERENCY_FEATURES, coherency_features);
PANFROST_FEATURE_ARRAY(TEXTURE_FEATURES, texture_features, 3);
PANFROST_FEATURE_ARRAY(JS_FEATURES, js_features, 15);
PANFROST_FEATURE(NR_CORE_GROUPS, nr_core_groups);
PANFROST_FEATURE(THREAD_TLS_ALLOC, thread_tls_alloc);
default:
return -EINVAL;
}