RE: [PATCH] drm/amdgpu: add codes to clear AccVGPR for arcturus

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[AMD Official Use Only - Internal Distribution Only]

Per offline discussion, we can re-use the existing logical, gpr_reg_size = compute_dim_x / 16 + 6; For vega20, totally 10 configuration registers, while for Arcturus, totally 14 configuration registers. That's fine.

We just need to create a separate vgpr_init _registers that specific for Arcturus since the shader requires different settings than vega20 one.

Please create a v2 to re-use code as much as possible. Thanks.

Regards,
Hawking

-----Original Message-----
From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Zhang, Hawking
Sent: Thursday, March 12, 2020 22:11
To: Li, Dennis <Dennis.Li@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx; Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Zhou1, Tao <Tao.Zhou1@xxxxxxx>; Chen, Guchun <Guchun.Chen@xxxxxxx>
Cc: Li, Dennis <Dennis.Li@xxxxxxx>
Subject: RE: [PATCH] drm/amdgpu: add codes to clear AccVGPR for arcturus

[AMD Official Use Only - Internal Distribution Only]

Since we separated MI100 vgpr shader program configuration register list from Vega20 ones, it's better to remove SE4 ~ SE7 thread registers from vega20 list.

Other than that, the patch is

Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>

Regards,
Hawking
-----Original Message-----
From: Dennis Li <Dennis.Li@xxxxxxx> 
Sent: Thursday, March 12, 2020 22:02
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx; Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Zhou1, Tao <Tao.Zhou1@xxxxxxx>; Zhang, Hawking <Hawking.Zhang@xxxxxxx>; Chen, Guchun <Guchun.Chen@xxxxxxx>
Cc: Li, Dennis <Dennis.Li@xxxxxxx>
Subject: [PATCH] drm/amdgpu: add codes to clear AccVGPR for arcturus

AccVGPRs are newly added in arcturus. Before reading these registers, they should be initialized. Otherwise edc error happens, when RAS is enabled.

Change-Id: I4ed384f0cc4b781a10cfd6ad1e3a132445bdc261
Signed-off-by: Dennis Li <Dennis.Li@xxxxxxx>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
old mode 100644
new mode 100755
index c78ffdc51373..d5dd754bfb85
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -4144,6 +4144,101 @@ static const u32 sgpr_init_compute_shader[] =
 	0xbe800080, 0xbf810000,
 };
 
+static const u32 vgpr_init_compute_shader_arcturus[] = {
+	0xd3d94000, 0x18000080, 0xd3d94001, 0x18000080, 0xd3d94002, 0x18000080,
+	0xd3d94003, 0x18000080, 0xd3d94004, 0x18000080, 0xd3d94005, 0x18000080,
+	0xd3d94006, 0x18000080, 0xd3d94007, 0x18000080, 0xd3d94008, 0x18000080,
+	0xd3d94009, 0x18000080, 0xd3d9400a, 0x18000080, 0xd3d9400b, 0x18000080,
+	0xd3d9400c, 0x18000080, 0xd3d9400d, 0x18000080, 0xd3d9400e, 0x18000080,
+	0xd3d9400f, 0x18000080, 0xd3d94010, 0x18000080, 0xd3d94011, 0x18000080,
+	0xd3d94012, 0x18000080, 0xd3d94013, 0x18000080, 0xd3d94014, 0x18000080,
+	0xd3d94015, 0x18000080, 0xd3d94016, 0x18000080, 0xd3d94017, 0x18000080,
+	0xd3d94018, 0x18000080, 0xd3d94019, 0x18000080, 0xd3d9401a, 0x18000080,
+	0xd3d9401b, 0x18000080, 0xd3d9401c, 0x18000080, 0xd3d9401d, 0x18000080,
+	0xd3d9401e, 0x18000080, 0xd3d9401f, 0x18000080, 0xd3d94020, 0x18000080,
+	0xd3d94021, 0x18000080, 0xd3d94022, 0x18000080, 0xd3d94023, 0x18000080,
+	0xd3d94024, 0x18000080, 0xd3d94025, 0x18000080, 0xd3d94026, 0x18000080,
+	0xd3d94027, 0x18000080, 0xd3d94028, 0x18000080, 0xd3d94029, 0x18000080,
+	0xd3d9402a, 0x18000080, 0xd3d9402b, 0x18000080, 0xd3d9402c, 0x18000080,
+	0xd3d9402d, 0x18000080, 0xd3d9402e, 0x18000080, 0xd3d9402f, 0x18000080,
+	0xd3d94030, 0x18000080, 0xd3d94031, 0x18000080, 0xd3d94032, 0x18000080,
+	0xd3d94033, 0x18000080, 0xd3d94034, 0x18000080, 0xd3d94035, 0x18000080,
+	0xd3d94036, 0x18000080, 0xd3d94037, 0x18000080, 0xd3d94038, 0x18000080,
+	0xd3d94039, 0x18000080, 0xd3d9403a, 0x18000080, 0xd3d9403b, 0x18000080,
+	0xd3d9403c, 0x18000080, 0xd3d9403d, 0x18000080, 0xd3d9403e, 0x18000080,
+	0xd3d9403f, 0x18000080, 0xd3d94040, 0x18000080, 0xd3d94041, 0x18000080,
+	0xd3d94042, 0x18000080, 0xd3d94043, 0x18000080, 0xd3d94044, 0x18000080,
+	0xd3d94045, 0x18000080, 0xd3d94046, 0x18000080, 0xd3d94047, 0x18000080,
+	0xd3d94048, 0x18000080, 0xd3d94049, 0x18000080, 0xd3d9404a, 0x18000080,
+	0xd3d9404b, 0x18000080, 0xd3d9404c, 0x18000080, 0xd3d9404d, 0x18000080,
+	0xd3d9404e, 0x18000080, 0xd3d9404f, 0x18000080, 0xd3d94050, 0x18000080,
+	0xd3d94051, 0x18000080, 0xd3d94052, 0x18000080, 0xd3d94053, 0x18000080,
+	0xd3d94054, 0x18000080, 0xd3d94055, 0x18000080, 0xd3d94056, 0x18000080,
+	0xd3d94057, 0x18000080, 0xd3d94058, 0x18000080, 0xd3d94059, 0x18000080,
+	0xd3d9405a, 0x18000080, 0xd3d9405b, 0x18000080, 0xd3d9405c, 0x18000080,
+	0xd3d9405d, 0x18000080, 0xd3d9405e, 0x18000080, 0xd3d9405f, 0x18000080,
+	0xd3d94060, 0x18000080, 0xd3d94061, 0x18000080, 0xd3d94062, 0x18000080,
+	0xd3d94063, 0x18000080, 0xd3d94064, 0x18000080, 0xd3d94065, 0x18000080,
+	0xd3d94066, 0x18000080, 0xd3d94067, 0x18000080, 0xd3d94068, 0x18000080,
+	0xd3d94069, 0x18000080, 0xd3d9406a, 0x18000080, 0xd3d9406b, 0x18000080,
+	0xd3d9406c, 0x18000080, 0xd3d9406d, 0x18000080, 0xd3d9406e, 0x18000080,
+	0xd3d9406f, 0x18000080, 0xd3d94070, 0x18000080, 0xd3d94071, 0x18000080,
+	0xd3d94072, 0x18000080, 0xd3d94073, 0x18000080, 0xd3d94074, 0x18000080,
+	0xd3d94075, 0x18000080, 0xd3d94076, 0x18000080, 0xd3d94077, 0x18000080,
+	0xd3d94078, 0x18000080, 0xd3d94079, 0x18000080, 0xd3d9407a, 0x18000080,
+	0xd3d9407b, 0x18000080, 0xd3d9407c, 0x18000080, 0xd3d9407d, 0x18000080,
+	0xd3d9407e, 0x18000080, 0xd3d9407f, 0x18000080, 0xd3d94080, 0x18000080,
+	0xd3d94081, 0x18000080, 0xd3d94082, 0x18000080, 0xd3d94083, 0x18000080,
+	0xd3d94084, 0x18000080, 0xd3d94085, 0x18000080, 0xd3d94086, 0x18000080,
+	0xd3d94087, 0x18000080, 0xd3d94088, 0x18000080, 0xd3d94089, 0x18000080,
+	0xd3d9408a, 0x18000080, 0xd3d9408b, 0x18000080, 0xd3d9408c, 0x18000080,
+	0xd3d9408d, 0x18000080, 0xd3d9408e, 0x18000080, 0xd3d9408f, 0x18000080,
+	0xd3d94090, 0x18000080, 0xd3d94091, 0x18000080, 0xd3d94092, 0x18000080,
+	0xd3d94093, 0x18000080, 0xd3d94094, 0x18000080, 0xd3d94095, 0x18000080,
+	0xd3d94096, 0x18000080, 0xd3d94097, 0x18000080, 0xd3d94098, 0x18000080,
+	0xd3d94099, 0x18000080, 0xd3d9409a, 0x18000080, 0xd3d9409b, 0x18000080,
+	0xd3d9409c, 0x18000080, 0xd3d9409d, 0x18000080, 0xd3d9409e, 0x18000080,
+	0xd3d9409f, 0x18000080, 0xd3d940a0, 0x18000080, 0xd3d940a1, 0x18000080,
+	0xd3d940a2, 0x18000080, 0xd3d940a3, 0x18000080, 0xd3d940a4, 0x18000080,
+	0xd3d940a5, 0x18000080, 0xd3d940a6, 0x18000080, 0xd3d940a7, 0x18000080,
+	0xd3d940a8, 0x18000080, 0xd3d940a9, 0x18000080, 0xd3d940aa, 0x18000080,
+	0xd3d940ab, 0x18000080, 0xd3d940ac, 0x18000080, 0xd3d940ad, 0x18000080,
+	0xd3d940ae, 0x18000080, 0xd3d940af, 0x18000080, 0xd3d940b0, 0x18000080,
+	0xd3d940b1, 0x18000080, 0xd3d940b2, 0x18000080, 0xd3d940b3, 0x18000080,
+	0xd3d940b4, 0x18000080, 0xd3d940b5, 0x18000080, 0xd3d940b6, 0x18000080,
+	0xd3d940b7, 0x18000080, 0xd3d940b8, 0x18000080, 0xd3d940b9, 0x18000080,
+	0xd3d940ba, 0x18000080, 0xd3d940bb, 0x18000080, 0xd3d940bc, 0x18000080,
+	0xd3d940bd, 0x18000080, 0xd3d940be, 0x18000080, 0xd3d940bf, 0x18000080,
+	0xd3d940c0, 0x18000080, 0xd3d940c1, 0x18000080, 0xd3d940c2, 0x18000080,
+	0xd3d940c3, 0x18000080, 0xd3d940c4, 0x18000080, 0xd3d940c5, 0x18000080,
+	0xd3d940c6, 0x18000080, 0xd3d940c7, 0x18000080, 0xd3d940c8, 0x18000080,
+	0xd3d940c9, 0x18000080, 0xd3d940ca, 0x18000080, 0xd3d940cb, 0x18000080,
+	0xd3d940cc, 0x18000080, 0xd3d940cd, 0x18000080, 0xd3d940ce, 0x18000080,
+	0xd3d940cf, 0x18000080, 0xd3d940d0, 0x18000080, 0xd3d940d1, 0x18000080,
+	0xd3d940d2, 0x18000080, 0xd3d940d3, 0x18000080, 0xd3d940d4, 0x18000080,
+	0xd3d940d5, 0x18000080, 0xd3d940d6, 0x18000080, 0xd3d940d7, 0x18000080,
+	0xd3d940d8, 0x18000080, 0xd3d940d9, 0x18000080, 0xd3d940da, 0x18000080,
+	0xd3d940db, 0x18000080, 0xd3d940dc, 0x18000080, 0xd3d940dd, 0x18000080,
+	0xd3d940de, 0x18000080, 0xd3d940df, 0x18000080, 0xd3d940e0, 0x18000080,
+	0xd3d940e1, 0x18000080, 0xd3d940e2, 0x18000080, 0xd3d940e3, 0x18000080,
+	0xd3d940e4, 0x18000080, 0xd3d940e5, 0x18000080, 0xd3d940e6, 0x18000080,
+	0xd3d940e7, 0x18000080, 0xd3d940e8, 0x18000080, 0xd3d940e9, 0x18000080,
+	0xd3d940ea, 0x18000080, 0xd3d940eb, 0x18000080, 0xd3d940ec, 0x18000080,
+	0xd3d940ed, 0x18000080, 0xd3d940ee, 0x18000080, 0xd3d940ef, 0x18000080,
+	0xd3d940f0, 0x18000080, 0xd3d940f1, 0x18000080, 0xd3d940f2, 0x18000080,
+	0xd3d940f3, 0x18000080, 0xd3d940f4, 0x18000080, 0xd3d940f5, 0x18000080,
+	0xd3d940f6, 0x18000080, 0xd3d940f7, 0x18000080, 0xd3d940f8, 0x18000080,
+	0xd3d940f9, 0x18000080, 0xd3d940fa, 0x18000080, 0xd3d940fb, 0x18000080,
+	0xd3d940fc, 0x18000080, 0xd3d940fd, 0x18000080, 0xd3d940fe, 0x18000080,
+	0xd3d940ff, 0x18000080, 0xb07c0000, 0xbe8a00ff, 0x000000f8, 0xbf11080a,
+	0x7e000280, 0x7e020280, 0x7e040280, 0x7e060280, 0x7e080280, 0x7e0a0280,
+	0x7e0c0280, 0x7e0e0280, 0x808a880a, 0xbe80320a, 0xbf84fff5, 0xbf9c0000,
+	0xd28c0001, 0x0001007f, 0xd28d0001, 0x0002027e, 0x10020288, 0xb88b0904,
+	0xb78b4000, 0xd1196a01, 0x00001701, 0xbe8a0087, 0xbefc00c1, 0xd89c4000,
+	0x00020201, 0xd89cc080, 0x00040401, 0x320202ff, 0x00000800, 0x808a810a,
+	0xbf84fff8, 0xbf810000,
+};
+
 /* When below register arrays changed, please update gpr_reg_size,
   and sec_ded_counter_reg_size in function gfx_v9_0_do_edc_gpr_workarounds,
   to cover all gfx9 ASICs */
@@ -4164,6 +4259,23 @@ static const struct soc15_reg_entry vgpr_init_regs[] = {
    { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_STATIC_THREAD_MGMT_SE7), 0xffffffff },  };
 
+static const struct soc15_reg_entry vgpr_init_regs_arcturus[] = {
+   { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_RESOURCE_LIMITS), 0x0000000 },
+   { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_NUM_THREAD_X), 0x40 },
+   { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_NUM_THREAD_Y), 4 },
+   { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_NUM_THREAD_Z), 1 },
+   { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_PGM_RSRC1), 0x81 },
+   { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_PGM_RSRC2), 0x400000 },  /* 64KB LDS */
+   { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_STATIC_THREAD_MGMT_SE0), 0xffffffff },
+   { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_STATIC_THREAD_MGMT_SE1), 0xffffffff },
+   { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_STATIC_THREAD_MGMT_SE2), 0xffffffff },
+   { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_STATIC_THREAD_MGMT_SE3), 0xffffffff },
+   { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_STATIC_THREAD_MGMT_SE4), 0xffffffff },
+   { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_STATIC_THREAD_MGMT_SE5), 0xffffffff },
+   { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_STATIC_THREAD_MGMT_SE6), 0xffffffff },
+   { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_STATIC_THREAD_MGMT_SE7), 
+0xffffffff }, };
+
 static const struct soc15_reg_entry sgpr1_init_regs[] = {
    { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_RESOURCE_LIMITS), 0x0000000 },
    { SOC15_REG_ENTRY(GC, 0, mmCOMPUTE_NUM_THREAD_X), 0x40 }, @@ -4294,7 +4406,9 @@ static int gfx_v9_0_do_edc_gpr_workarounds(struct amdgpu_device *adev)
 						adev->gfx.config.max_cu_per_sh *
 						adev->gfx.config.max_sh_per_se;
 	int sgpr_work_group_size = 5;
-	int gpr_reg_size = compute_dim_x / 16 + 6;
+	int vgpr_reg_size, vgpr_init_shader_size;
+	const u32 *vgpr_init_shader_ptr;
+	const struct soc15_reg_entry *vgpr_init_regs_ptr;
 
 	/* only support when RAS is enabled */
 	if (!amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__GFX)) @@ -4304,15 +4418,27 @@ static int gfx_v9_0_do_edc_gpr_workarounds(struct amdgpu_device *adev)
 	if (!ring->sched.ready)
 		return 0;
 
+	if (adev->asic_type == CHIP_ARCTURUS) {
+		vgpr_init_shader_ptr = vgpr_init_compute_shader_arcturus;
+		vgpr_init_shader_size = sizeof(vgpr_init_compute_shader_arcturus);
+		vgpr_init_regs_ptr = vgpr_init_regs_arcturus;
+		vgpr_reg_size = ARRAY_SIZE(vgpr_init_regs_arcturus);
+	} else {
+		vgpr_init_shader_ptr = vgpr_init_compute_shader;
+		vgpr_init_shader_size = sizeof(vgpr_init_compute_shader);
+		vgpr_init_regs_ptr = vgpr_init_regs;
+		vgpr_reg_size = ARRAY_SIZE(vgpr_init_regs);
+	}
+
 	total_size =
-		(gpr_reg_size * 3 + 4 + 5 + 2) * 4; /* VGPRS */
+		(vgpr_reg_size * 3 + 4 + 5 + 2) * 4; /* VGPRS */
 	total_size +=
-		(gpr_reg_size * 3 + 4 + 5 + 2) * 4; /* SGPRS1 */
+		(ARRAY_SIZE(sgpr1_init_regs) * 3 + 4 + 5 + 2) * 4; /* SGPRS1 */
 	total_size +=
-		(gpr_reg_size * 3 + 4 + 5 + 2) * 4; /* SGPRS2 */
+		(ARRAY_SIZE(sgpr2_init_regs) * 3 + 4 + 5 + 2) * 4; /* SGPRS2 */
 	total_size = ALIGN(total_size, 256);
 	vgpr_offset = total_size;
-	total_size += ALIGN(sizeof(vgpr_init_compute_shader), 256);
+	total_size += ALIGN(vgpr_init_shader_size, 256);
 	sgpr_offset = total_size;
 	total_size += sizeof(sgpr_init_compute_shader);
 
@@ -4325,8 +4451,8 @@ static int gfx_v9_0_do_edc_gpr_workarounds(struct amdgpu_device *adev)
 	}
 
 	/* load the compute shaders */
-	for (i = 0; i < ARRAY_SIZE(vgpr_init_compute_shader); i++)
-		ib.ptr[i + (vgpr_offset / 4)] = vgpr_init_compute_shader[i];
+	for (i = 0; i < vgpr_init_shader_size/sizeof(u32); i++)
+		ib.ptr[i + (vgpr_offset / 4)] = vgpr_init_shader_ptr[i];
 
 	for (i = 0; i < ARRAY_SIZE(sgpr_init_compute_shader); i++)
 		ib.ptr[i + (sgpr_offset / 4)] = sgpr_init_compute_shader[i]; @@ -4336,11 +4462,11 @@ static int gfx_v9_0_do_edc_gpr_workarounds(struct amdgpu_device *adev)
 
 	/* VGPR */
 	/* write the register state for the compute dispatch */
-	for (i = 0; i < gpr_reg_size; i++) {
+	for (i = 0; i < vgpr_reg_size; i++) {
 		ib.ptr[ib.length_dw++] = PACKET3(PACKET3_SET_SH_REG, 1);
-		ib.ptr[ib.length_dw++] = SOC15_REG_ENTRY_OFFSET(vgpr_init_regs[i])
+		ib.ptr[ib.length_dw++] = 
+SOC15_REG_ENTRY_OFFSET(vgpr_init_regs_ptr[i])
 								- PACKET3_SET_SH_REG_START;
-		ib.ptr[ib.length_dw++] = vgpr_init_regs[i].reg_value;
+		ib.ptr[ib.length_dw++] = vgpr_init_regs_ptr[i].reg_value;
 	}
 	/* write the shader start address: mmCOMPUTE_PGM_LO, mmCOMPUTE_PGM_HI */
 	gpu_addr = (ib.gpu_addr + (u64)vgpr_offset) >> 8; @@ -4352,7 +4478,7 @@ static int gfx_v9_0_do_edc_gpr_workarounds(struct amdgpu_device *adev)
 
 	/* write dispatch packet */
 	ib.ptr[ib.length_dw++] = PACKET3(PACKET3_DISPATCH_DIRECT, 3);
-	ib.ptr[ib.length_dw++] = compute_dim_x; /* x */
+	ib.ptr[ib.length_dw++] = compute_dim_x * 2; /* x */
 	ib.ptr[ib.length_dw++] = 1; /* y */
 	ib.ptr[ib.length_dw++] = 1; /* z */
 	ib.ptr[ib.length_dw++] =
@@ -4364,7 +4490,7 @@ static int gfx_v9_0_do_edc_gpr_workarounds(struct amdgpu_device *adev)
 
 	/* SGPR1 */
 	/* write the register state for the compute dispatch */
-	for (i = 0; i < gpr_reg_size; i++) {
+	for (i = 0; i < ARRAY_SIZE(sgpr1_init_regs); i++) {
 		ib.ptr[ib.length_dw++] = PACKET3(PACKET3_SET_SH_REG, 1);
 		ib.ptr[ib.length_dw++] = SOC15_REG_ENTRY_OFFSET(sgpr1_init_regs[i])
 								- PACKET3_SET_SH_REG_START;
@@ -4392,7 +4518,7 @@ static int gfx_v9_0_do_edc_gpr_workarounds(struct amdgpu_device *adev)
 
 	/* SGPR2 */
 	/* write the register state for the compute dispatch */
-	for (i = 0; i < gpr_reg_size; i++) {
+	for (i = 0; i < ARRAY_SIZE(sgpr2_init_regs); i++) {
 		ib.ptr[ib.length_dw++] = PACKET3(PACKET3_SET_SH_REG, 1);
 		ib.ptr[ib.length_dw++] = SOC15_REG_ENTRY_OFFSET(sgpr2_init_regs[i])
 								- PACKET3_SET_SH_REG_START;
--
2.17.1
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