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authorOak Zeng <ozeng@amd.com>2018-11-20 00:59:53 +0300
committerAlex Deucher <alexander.deucher@amd.com>2018-11-28 23:55:32 +0300
commitc93aa77586c2ffe328cca32b40fc988bde8318b2 (patch)
treea6e52fb5a450268c336c5a13fd04aaef6109ae06 /drivers/gpu/drm/amd/amdgpu/amdgpu.h
parent4e2c1ac2027d1ad99109b676450db8759779222c (diff)
downloadlinux-c93aa77586c2ffe328cca32b40fc988bde8318b2.tar.xz
drm/amdgpu: Doorbell layout for vega20 and future asic
This introduces new doorbell layout for vega20 and future asics v2: Use enum definition instead of hardcoded value Signed-off-by: Oak Zeng <ozeng@amd.com> Suggested-by: Felix Kuehling <Felix.Kuehling@amd.com> Suggested-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 7e9d9b97183a..9ec5f5a6ac39 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -392,6 +392,56 @@ struct amdgpu_doorbell {
u32 num_doorbells; /* Number of doorbells actually reserved for amdgpu. */
};
+typedef enum _AMDGPU_VEGA20_DOORBELL_ASSIGNMENT
+{
+ /* Compute + GFX: 0~255 */
+ AMDGPU_VEGA20_DOORBELL_KIQ = 0x000,
+ AMDGPU_VEGA20_DOORBELL_HIQ = 0x001,
+ AMDGPU_VEGA20_DOORBELL_DIQ = 0x002,
+ AMDGPU_VEGA20_DOORBELL_MEC_RING0 = 0x003,
+ AMDGPU_VEGA20_DOORBELL_MEC_RING1 = 0x004,
+ AMDGPU_VEGA20_DOORBELL_MEC_RING2 = 0x005,
+ AMDGPU_VEGA20_DOORBELL_MEC_RING3 = 0x006,
+ AMDGPU_VEGA20_DOORBELL_MEC_RING4 = 0x007,
+ AMDGPU_VEGA20_DOORBELL_MEC_RING5 = 0x008,
+ AMDGPU_VEGA20_DOORBELL_MEC_RING6 = 0x009,
+ AMDGPU_VEGA20_DOORBELL_MEC_RING7 = 0x00A,
+ AMDGPU_VEGA20_DOORBELL_USERQUEUE_START = 0x00B,
+ AMDGPU_VEGA20_DOORBELL_USERQUEUE_END = 0x08A,
+ AMDGPU_VEGA20_DOORBELL_GFX_RING0 = 0x08B,
+ /* SDMA:256~335*/
+ AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE0 = 0x100,
+ AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE1 = 0x10A,
+ AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE2 = 0x114,
+ AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE3 = 0x11E,
+ AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE4 = 0x128,
+ AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE5 = 0x132,
+ AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE6 = 0x13C,
+ AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE7 = 0x146,
+ /* IH: 376~391 */
+ AMDGPU_VEGA20_DOORBELL_IH = 0x178,
+ /* MMSCH: 392~407
+ * overlap the doorbell assignment with VCN as they are mutually exclusive
+ * VCE engine's doorbell is 32 bit and two VCE ring share one QWORD
+ */
+ AMDGPU_VEGA20_DOORBELL64_VCN0_1 = 0x188, /* lower 32 bits for VNC0 and upper 32 bits for VNC1 */
+ AMDGPU_VEGA20_DOORBELL64_VCN2_3 = 0x189,
+ AMDGPU_VEGA20_DOORBELL64_VCN4_5 = 0x18A,
+ AMDGPU_VEGA20_DOORBELL64_VCN6_7 = 0x18B,
+
+ AMDGPU_VEGA20_DOORBELL64_UVD_RING0_1 = 0x188,
+ AMDGPU_VEGA20_DOORBELL64_UVD_RING2_3 = 0x189,
+ AMDGPU_VEGA20_DOORBELL64_UVD_RING4_5 = 0x18A,
+ AMDGPU_VEGA20_DOORBELL64_UVD_RING6_7 = 0x18B,
+
+ AMDGPU_VEGA20_DOORBELL64_VCE_RING0_1 = 0x18C,
+ AMDGPU_VEGA20_DOORBELL64_VCE_RING2_3 = 0x18D,
+ AMDGPU_VEGA20_DOORBELL64_VCE_RING4_5 = 0x18E,
+ AMDGPU_VEGA20_DOORBELL64_VCE_RING6_7 = 0x18F,
+ AMDGPU_VEGA20_DOORBELL_MAX_ASSIGNMENT = 0x18F,
+ AMDGPU_VEGA20_DOORBELL_INVALID = 0xFFFF
+} AMDGPU_VEGA20_DOORBELL_ASSIGNMENT;
+
/*
* 64bit doorbell, offset are in QWORD, occupy 2KB doorbell space
*/