diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4499-drm-amdgpu-Add-SOC15_WAIT_ON_RREG-macro-define.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4499-drm-amdgpu-Add-SOC15_WAIT_ON_RREG-macro-define.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4499-drm-amdgpu-Add-SOC15_WAIT_ON_RREG-macro-define.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4499-drm-amdgpu-Add-SOC15_WAIT_ON_RREG-macro-define.patch new file mode 100644 index 00000000..b5f35ad6 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4499-drm-amdgpu-Add-SOC15_WAIT_ON_RREG-macro-define.patch @@ -0,0 +1,41 @@ +From 3552ed5de7c5230aece29c49a3ab7c8063268dee Mon Sep 17 00:00:00 2001 +From: Rex Zhu <Rex.Zhu@amd.com> +Date: Thu, 17 May 2018 15:58:53 +0800 +Subject: [PATCH 4499/5725] drm/amdgpu: Add SOC15_WAIT_ON_RREG macro define + +Change-Id: Ic44aa31a34e24b07d9f18a17301b8969c01de321 +Reviewed-by: Alex Deucher <alexander.deucher@amd.com> +Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/soc15_common.h | 15 +++++++++++++++ + 1 file changed, 15 insertions(+) + +diff --git a/drivers/gpu/drm/amd/amdgpu/soc15_common.h b/drivers/gpu/drm/amd/amdgpu/soc15_common.h +index def8650..0942f49 100644 +--- a/drivers/gpu/drm/amd/amdgpu/soc15_common.h ++++ b/drivers/gpu/drm/amd/amdgpu/soc15_common.h +@@ -47,6 +47,21 @@ + #define WREG32_SOC15_OFFSET(ip, inst, reg, offset, value) \ + WREG32((adev->reg_offset[ip##_HWIP][inst][reg##_BASE_IDX] + reg) + offset, value) + ++#define SOC15_WAIT_ON_RREG(ip, inst, reg, expected_value, mask, ret) \ ++ do { \ ++ uint32_t tmp_ = RREG32(adev->reg_offset[ip##_HWIP][inst][reg##_BASE_IDX] + reg); \ ++ uint32_t loop = adev->usec_timeout; \ ++ while ((tmp_ & (mask)) != (expected_value)) { \ ++ udelay(2); \ ++ tmp_ = RREG32(adev->reg_offset[ip##_HWIP][inst][reg##_BASE_IDX] + reg); \ ++ loop--; \ ++ if (!loop) { \ ++ ret = -ETIMEDOUT; \ ++ break; \ ++ } \ ++ } \ ++ } while (0) ++ + #endif + + +-- +2.7.4 + |