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gpu: nvgpu: Dynamic betacb size

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Allow querying and setting default betacb size via debugfs. For global buffers
the value takes effect upon first boot of GPU, and has no effect after that.

Bug 1628352

Change-Id: Ib63f4299249c41eab1b36cc501b525cc54211195
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/733328
This commit is contained in:
Terje Bergstrom
2015-04-20 10:31:09 -07:00
committed by Ishan Mittal
parent 96ffe0c64d
commit d20afe7bd4
5 changed files with 23 additions and 4 deletions
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1
drivers/gpu/nvgpu/gk20a/gk20a.c
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@@ -1518,6 +1518,7 @@ static int gk20a_probe(struct platform_device *dev)
S_IRUGO|S_IWUSR,
platform->debugfs,
&gk20a->mm.disable_bigpage);
gr_gk20a_debugfs_init(gk20a);
gk20a_pmu_debugfs_init(dev);
gk20a_cde_debugfs_init(dev);
#endif

1
drivers/gpu/nvgpu/gk20a/gk20a.h
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@@ -472,6 +472,7 @@ struct gk20a {
struct dentry *debugfs_gr_idle_timeout_default;
struct dentry *debugfs_bypass_smmu;
struct dentry *debugfs_disable_bigpage;
struct dentry *debugfs_gr_default_attrib_cb_size;
#endif
struct gk20a_ctxsw_ucode_info ctxsw_ucode_info;

19
drivers/gpu/nvgpu/gk20a/gr_gk20a.c
View File

@@ -21,6 +21,7 @@
#include <linux/mm.h> /* for totalram_pages */
#include <linux/scatterlist.h>
#include <linux/tegra-soc.h>
#include <linux/debugfs.h>
#include <uapi/linux/nvgpu.h>
#include <linux/vmalloc.h>
#include <linux/dma-mapping.h>
@@ -54,6 +55,7 @@
#include "dbg_gpu_gk20a.h"
#include "debug_gk20a.h"
#include "semaphore_gk20a.h"
#include "platform_gk20a.h"
#define BLK_SIZE (256)
@@ -6909,8 +6911,9 @@ static void gr_gk20a_cb_size_default(struct gk20a *g)
{
struct gr_gk20a *gr = &g->gr;
gr->attrib_cb_default_size =
gr_gpc0_ppc0_cbm_cfg_size_default_v();
if (!gr->attrib_cb_default_size)
gr->attrib_cb_default_size =
gr_gpc0_ppc0_cbm_cfg_size_default_v();
gr->alpha_cb_default_size =
gr_gpc0_ppc0_cbm_cfg2_size_default_v();
}
@@ -7267,6 +7270,18 @@ static int gr_gk20a_dump_gr_status_regs(struct gk20a *g,
return 0;
}
int gr_gk20a_debugfs_init(struct gk20a *g)
{
struct gk20a_platform *platform = platform_get_drvdata(g->dev);
g->debugfs_gr_default_attrib_cb_size =
debugfs_create_u32("gr_default_attrib_cb_size",
S_IRUGO|S_IWUSR, platform->debugfs,
&g->gr.attrib_cb_default_size);
return 0;
}
void gk20a_init_gr_ops(struct gpu_ops *gops)
{
gops->gr.access_smpc_reg = gr_gk20a_access_smpc_reg;

1
drivers/gpu/nvgpu/gk20a/gr_gk20a.h
View File

@@ -495,5 +495,6 @@ int gr_gk20a_alloc_gr_ctx(struct gk20a *g,
void gr_gk20a_free_gr_ctx(struct gk20a *g,
struct vm_gk20a *vm, struct gr_ctx_desc *gr_ctx);
int gr_gk20a_halt_pipe(struct gk20a *g);
int gr_gk20a_debugfs_init(struct gk20a *g);
#endif /*__GR_GK20A_H__*/

5
drivers/gpu/nvgpu/gm20b/gr_gm20b.c
View File

@@ -85,8 +85,9 @@ static void gr_gm20b_cb_size_default(struct gk20a *g)
{
struct gr_gk20a *gr = &g->gr;
gr->attrib_cb_default_size =
gr_gpc0_ppc0_cbm_beta_cb_size_v_default_v();
if (!gr->attrib_cb_default_size)
gr->attrib_cb_default_size =
gr_gpc0_ppc0_cbm_beta_cb_size_v_default_v();
gr->alpha_cb_default_size =
gr_gpc0_ppc0_cbm_alpha_cb_size_v_default_v();
}