Regards,
Christian.
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 6 ++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 2 ++
drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c | 6 ++++++
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 6 ++++++
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 14 ++++++++++++++
include/uapi/drm/amdgpu_drm.h | 1 +
6 files changed, 35 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 1ad3f08..cdc2b2a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -869,6 +869,10 @@ struct amdgpu_gfx_funcs {
void (*read_wave_sgprs)(struct amdgpu_device *adev, uint32_t
simd,
uint32_t wave, uint32_t start, uint32_t size, uint32_t *dst);
};
+struct amdgpu_gfx_cap {
+ uint32_t gc_double_offchip_lds_buf; };
+
struct amdgpu_gfx {
struct mutex gpu_clock_mutex;
struct amdgpu_gca_config config;
@@ -911,6 +915,8 @@ struct amdgpu_gfx {
/* reset mask */
uint32_t grbm_soft_reset;
uint32_t srbm_soft_reset;
+
+ struct amdgpu_gfx_cap cap;
};
int amdgpu_ib_get(struct amdgpu_device *adev, struct amdgpu_vm
*vm, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 7f59608..e7aa382 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -618,6 +618,8 @@ static int amdgpu_info_ioctl(struct drm_device
*dev,
void *data, struct drm_file
cap.flag |= AMDGPU_CAPABILITY_DIRECT_GMA_FLAG;
cap.direct_gma_size = amdgpu_direct_gma_size;
}
+ cap.gc_double_offchip_lds_buf =
+ adev->gfx.cap.gc_double_offchip_lds_buf;
return copy_to_user(out, &cap,
min((size_t)size, sizeof(cap))) ? -EFAULT :
0;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
index ce75d46..a1e221b 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
@@ -1534,6 +1534,11 @@ static void gfx_v6_0_setup_spi(struct
amdgpu_device *adev,
mutex_unlock(&adev->grbm_idx_mutex);
}
+static void gfx_v6_0_cap_init(struct amdgpu_device *adev) {
+ adev->gfx.cap.gc_double_offchip_lds_buf = 1; }
+
static void gfx_v6_0_gpu_init(struct amdgpu_device *adev)
{
u32 gb_addr_config = 0;
@@ -1692,6 +1697,7 @@ static void gfx_v6_0_gpu_init(struct
amdgpu_device
*adev)
adev->gfx.config.max_cu_per_sh);
gfx_v6_0_get_cu_info(adev);
+ gfx_v6_0_cap_init(adev);
WREG32(mmCP_QUEUE_THRESHOLDS, ((0x16 <<
CP_QUEUE_THRESHOLDS__ROQ_IB1_START__SHIFT) |
(0x2b <<
CP_QUEUE_THRESHOLDS__ROQ_IB2_START__SHIFT)));
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index aaf66fe..e1e97ae 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -1876,6 +1876,11 @@ static void gmc_v7_0_init_compute_vmid(struct
amdgpu_device *adev)
mutex_unlock(&adev->srbm_mutex);
}
+static void gfx_v7_0_cap_init(struct amdgpu_device *adev) {
+ adev->gfx.cap.gc_double_offchip_lds_buf = 1; }
+
/**
* gfx_v7_0_gpu_init - setup the 3D engine
*
@@ -1900,6 +1905,7 @@ static void gfx_v7_0_gpu_init(struct
amdgpu_device *adev)
gfx_v7_0_setup_rb(adev);
gfx_v7_0_get_cu_info(adev);
+ gfx_v7_0_cap_init(adev);
/* set HW defaults for 3D engine */
WREG32(mmCP_MEQ_THRESHOLDS,
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index ce05e38..934fc71 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -3826,6 +3826,19 @@ static void gfx_v8_0_init_compute_vmid(struct
amdgpu_device *adev)
mutex_unlock(&adev->srbm_mutex);
}
+static void gfx_v8_0_cap_init(struct amdgpu_device *adev) {
+ switch (adev->asic_type) {
+ default:
+ adev->gfx.cap.gc_double_offchip_lds_buf = 1;
+ break;
+ case CHIP_CARRIZO:
+ case CHIP_STONEY:
+ adev->gfx.cap.gc_double_offchip_lds_buf = 0;
+ break;
+ }
+}
+
static void gfx_v8_0_gpu_init(struct amdgpu_device *adev)
{
u32 tmp, sh_static_mem_cfg;
@@ -3839,6 +3852,7 @@ static void gfx_v8_0_gpu_init(struct
amdgpu_device
*adev)
gfx_v8_0_tiling_mode_table_init(adev);
gfx_v8_0_setup_rb(adev);
gfx_v8_0_get_cu_info(adev);
+ gfx_v8_0_cap_init(adev);
/* XXX SH_MEM regs */
/* where to put LDS, scratch, GPUVM in FSA64 space */ diff --git
a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index 04daab3..7064fdc 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -853,6 +853,7 @@ struct drm_amdgpu_virtual_range {
struct drm_amdgpu_capability {
__u32 flag;
__u32 direct_gma_size;
+ __u32 gc_double_offchip_lds_buf;
};
/*
