[PATCH 54/88] drm/amdgpu: allow unaligned memory access (v2)
Alex Deucher
alexdeucher at gmail.com
Tue May 26 20:19:53 PDT 2015
From: Jack Xiao <Jack.Xiao at amd.com>
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 at amd.com>
Reviewed-by: Monk Liu <monk.liu at amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou at amd.com>
---
drivers/gpu/drm/amd/amdgpu/cik_sdma.c | 6 +++++-
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 6 +++++-
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 4 ++++
drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c | 5 ++++-
drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 5 ++++-
5 files changed, 22 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
index ae2bb26..037e3db 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
@@ -33,6 +33,8 @@
#include "bif/bif_4_1_sh_mask.h"
#include "gca/gfx_7_2_d.h"
+#include "gca/gfx_7_2_enum.h"
+#include "gca/gfx_7_2_sh_mask.h"
#include "gmc/gmc_7_1_d.h"
#include "gmc/gmc_7_1_sh_mask.h"
@@ -837,6 +839,8 @@ static void cik_sdma_ring_emit_vm_flush(struct amdgpu_ring *ring,
{
u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(0) |
SDMA_POLL_REG_MEM_EXTRA_FUNC(0)); /* always */
+ u32 sh_mem_cfg = REG_SET_FIELD(0, SH_MEM_CONFIG, ALIGNMENT_MODE,
+ SH_MEM_ALIGNMENT_MODE_UNALIGNED);
amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
if (vm_id < 8) {
@@ -857,7 +861,7 @@ static void cik_sdma_ring_emit_vm_flush(struct amdgpu_ring *ring,
amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
amdgpu_ring_write(ring, mmSH_MEM_CONFIG);
- amdgpu_ring_write(ring, 0);
+ amdgpu_ring_write(ring, sh_mem_cfg);
amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
amdgpu_ring_write(ring, mmSH_MEM_APE1_BASE);
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 675b096..26df23e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -2022,6 +2022,7 @@ static void gfx_v7_0_gpu_init(struct amdgpu_device *adev)
u32 gb_addr_config;
u32 mc_shared_chmap, mc_arb_ramcfg;
u32 dimm00_addr_map, dimm01_addr_map, dimm10_addr_map, dimm11_addr_map;
+ u32 sh_mem_cfg;
u32 tmp;
int i;
@@ -2214,11 +2215,14 @@ static void gfx_v7_0_gpu_init(struct amdgpu_device *adev)
/* XXX SH_MEM regs */
/* where to put LDS, scratch, GPUVM in FSA64 space */
+ sh_mem_cfg = REG_SET_FIELD(0, SH_MEM_CONFIG, ALIGNMENT_MODE,
+ SH_MEM_ALIGNMENT_MODE_UNALIGNED);
+
mutex_lock(&adev->srbm_mutex);
for (i = 0; i < 16; i++) {
cik_srbm_select(adev, 0, 0, 0, i);
/* CP and shaders */
- WREG32(mmSH_MEM_CONFIG, 0);
+ WREG32(mmSH_MEM_CONFIG, sh_mem_cfg);
WREG32(mmSH_MEM_APE1_BASE, 1);
WREG32(mmSH_MEM_APE1_LIMIT, 0);
WREG32(mmSH_MEM_BASES, 0);
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index a8397dd..3762998 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -2050,10 +2050,14 @@ static void gfx_v8_0_gpu_init(struct amdgpu_device *adev)
if (i == 0) {
tmp = REG_SET_FIELD(0, SH_MEM_CONFIG, DEFAULT_MTYPE, MTYPE_UC);
tmp = REG_SET_FIELD(tmp, SH_MEM_CONFIG, APE1_MTYPE, MTYPE_UC);
+ tmp = REG_SET_FIELD(tmp, SH_MEM_CONFIG, ALIGNMENT_MODE,
+ SH_MEM_ALIGNMENT_MODE_UNALIGNED);
WREG32(mmSH_MEM_CONFIG, tmp);
} else {
tmp = REG_SET_FIELD(0, SH_MEM_CONFIG, DEFAULT_MTYPE, MTYPE_NC);
tmp = REG_SET_FIELD(tmp, SH_MEM_CONFIG, APE1_MTYPE, MTYPE_NC);
+ tmp = REG_SET_FIELD(tmp, SH_MEM_CONFIG, ALIGNMENT_MODE,
+ SH_MEM_ALIGNMENT_MODE_UNALIGNED);
WREG32(mmSH_MEM_CONFIG, tmp);
}
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
index a83029d..389509a 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.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"
@@ -900,6 +901,8 @@ static void sdma_v2_4_ring_emit_vm_flush(struct amdgpu_ring *ring,
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));
@@ -925,7 +928,7 @@ static void sdma_v2_4_ring_emit_vm_flush(struct amdgpu_ring *ring,
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));
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 @@ static void sdma_v3_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
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 @@ static void sdma_v3_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
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));
--
1.8.3.1
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