drm/amdgpu: allow unaligned memory access (v2)
Set up the CP and SDMA for proper unaligned memory access.
Required for OpenCL 2.x
v2: udpate commit message
Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
index dd547c7f..d3eda31 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
@@ -36,6 +36,7 @@
#include "gmc/gmc_8_1_sh_mask.h"
#include "gca/gfx_8_0_d.h"
+#include "gca/gfx_8_0_enum.h"
#include "gca/gfx_8_0_sh_mask.h"
#include "bif/bif_5_0_d.h"
@@ -963,6 +964,8 @@
unsigned vm_id, uint64_t pd_addr)
{
u32 srbm_gfx_cntl = 0;
+ u32 sh_mem_cfg = REG_SET_FIELD(0, SH_MEM_CONFIG, ALIGNMENT_MODE,
+ SH_MEM_ALIGNMENT_MODE_UNALIGNED);
amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
@@ -988,7 +991,7 @@
amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
amdgpu_ring_write(ring, mmSH_MEM_CONFIG);
- amdgpu_ring_write(ring, 0);
+ amdgpu_ring_write(ring, sh_mem_cfg);
amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));