From: Wenhui Sheng <Wenhui.Sheng@xxxxxxx>
Only read first 4K data instead of whole TMR block,
so we can reduce the time in full access mode.
Signed-off-by: Wenhui Sheng <Wenhui.Sheng@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h | 3 ++-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index b5d6274952a5..82c048766745 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -133,7 +133,7 @@ static int hw_id_map[MAX_HWIP] = {
static int amdgpu_discovery_read_binary(struct amdgpu_device *adev, uint8_t *binary)
{
uint64_t vram_size = (uint64_t)RREG32(mmRCC_CONFIG_MEMSIZE) << 20;
- uint64_t pos = vram_size - adev->discovery_tmr_size;
+ uint64_t pos = vram_size - DISCOVERY_TMR_OFFSET;
amdgpu_device_vram_access(adev, pos, (uint32_t *)binary,
adev->discovery_tmr_size, false);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h
index d50d597c45ed..8f6183801cb3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h
@@ -24,7 +24,8 @@
#ifndef __AMDGPU_DISCOVERY__
#define __AMDGPU_DISCOVERY__
-#define DISCOVERY_TMR_SIZE (64 << 10)
+#define DISCOVERY_TMR_SIZE (4 << 10)
+#define DISCOVERY_TMR_OFFSET (64 << 10)
void amdgpu_discovery_fini(struct amdgpu_device *adev);
int amdgpu_discovery_reg_base_init(struct amdgpu_device *adev);
--
2.17.1
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