duggasco/bc250-40cu-unlock
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Improve patch: use stable context anchors for cross-version compatibility

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The patch now uses amdgpu_gfx_parse_disable_cu + mutex_lock as context
anchors instead of line numbers. These function calls are present in
gfx_v10_0_get_cu_info() across all kernel versions (6.1+).

Removed fake git index hashes. Replaced em-dash with -- for ASCII safety.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
root
2026-05-18 21:27:34 +00:00
parent 956cee126c
commit 5f147a89ff
1 changed files with 3 additions and 3 deletions
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6
patch/bc250-40cu-amdgpu.patch
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@@ -37,7 +37,6 @@ Signed-off-by: duggasco <duggasco@gmail.com>
1 file changed, 46 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index abcdef012345..abcdef012346 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -26,6 +26,13 @@
@@ -54,11 +53,12 @@ index abcdef012345..abcdef012346 100644
#include "amdgpu.h"
#include "amdgpu_gfx.h"
#include "amdgpu_psp.h"
@@ -10129,6 +10136,45 @@ static int gfx_v10_0_get_cu_info(struct amdgpu_device *adev,
@@ -10127,6 +10134,39 @@
amdgpu_gfx_parse_disable_cu(disable_masks, 4, 2);
mutex_lock(&adev->grbm_idx_mutex);
+
+ /* BC-250: unlock harvested CUs — CC (enumeration) + SPI (dispatch) + RLC (power) */
+ /* BC-250: unlock harvested CUs -- CC (enumeration) + SPI (dispatch) + RLC (power) */
+ if (bc250_cc_write_mode > 0 && adev->pdev->device == BC250_PCI_DEVICE_ID) {
+ int bc_se, bc_sh;
+ for (bc_se = 0; bc_se < adev->gfx.config.max_shader_engines; bc_se++) {