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linux-nvgpu/drivers/gpu/nvgpu/gk20a/gr_ctx_gk20a.c
Vijayakumar 30d399de30 gpu: nvgpu: load secure gpccs using dma 
bug 200080684

use new cmd defined in ucode for loading
GR falcons. flip PRIV load flag in lsb
header to indicate using dma. use pmu msg
as cmd completion for new cmd instead of
polling fecs mailbox. also move
check for using dma in non secure boot path
to hal.

Change-Id: I22582a705bd1ae0603f858e1fe200d72e6794a81
Signed-off-by: Vijayakumar <vsubbu@nvidia.com>
Reviewed-on: http://git-master/r/761625
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
2015-06-26 13:14:53 -07:00

350 lines
9.7 KiB
C
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/*
* drivers/video/tegra/host/gk20a/gr_ctx_gk20a.c
*
* GK20A Graphics Context
*
* Copyright (c) 2011-2015, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <linux/firmware.h>
#include "gk20a.h"
#include "gr_ctx_gk20a.h"
#include "hw_gr_gk20a.h"
static int gr_gk20a_alloc_load_netlist_u32(u32 *src, u32 len,
struct u32_list_gk20a *u32_list)
{
u32_list->count = (len + sizeof(u32) - 1) / sizeof(u32);
if (!alloc_u32_list_gk20a(u32_list))
return -ENOMEM;
memcpy(u32_list->l, src, len);
return 0;
}
static int gr_gk20a_alloc_load_netlist_av(u32 *src, u32 len,
struct av_list_gk20a *av_list)
{
av_list->count = len / sizeof(struct av_gk20a);
if (!alloc_av_list_gk20a(av_list))
return -ENOMEM;
memcpy(av_list->l, src, len);
return 0;
}
static int gr_gk20a_alloc_load_netlist_aiv(u32 *src, u32 len,
struct aiv_list_gk20a *aiv_list)
{
aiv_list->count = len / sizeof(struct aiv_gk20a);
if (!alloc_aiv_list_gk20a(aiv_list))
return -ENOMEM;
memcpy(aiv_list->l, src, len);
return 0;
}
static int gr_gk20a_get_netlist_name(int index, char *name)
{
switch (index) {
#ifdef GK20A_NETLIST_IMAGE_FW_NAME
case NETLIST_FINAL:
sprintf(name, GK20A_NETLIST_IMAGE_FW_NAME);
return 0;
#endif
#ifdef GK20A_NETLIST_IMAGE_A
case NETLIST_SLOT_A:
sprintf(name, GK20A_NETLIST_IMAGE_A);
return 0;
#endif
#ifdef GK20A_NETLIST_IMAGE_B
case NETLIST_SLOT_B:
sprintf(name, GK20A_NETLIST_IMAGE_B);
return 0;
#endif
#ifdef GK20A_NETLIST_IMAGE_C
case NETLIST_SLOT_C:
sprintf(name, GK20A_NETLIST_IMAGE_C);
return 0;
#endif
#ifdef GK20A_NETLIST_IMAGE_D
case NETLIST_SLOT_D:
sprintf(name, GK20A_NETLIST_IMAGE_D);
return 0;
#endif
default:
return -1;
}
return -1;
}
static bool gr_gk20a_is_firmware_defined(void)
{
#ifdef GK20A_NETLIST_IMAGE_FW_NAME
return true;
#else
return false;
#endif
}
static int gr_gk20a_init_ctx_vars_fw(struct gk20a *g, struct gr_gk20a *gr)
{
struct device *d = dev_from_gk20a(g);
const struct firmware *netlist_fw;
struct netlist_image *netlist = NULL;
char name[MAX_NETLIST_NAME];
u32 i, major_v = ~0, major_v_hw, netlist_num;
int net, max, err = -ENOENT;
gk20a_dbg_fn("");
if (g->ops.gr_ctx.is_fw_defined()) {
net = NETLIST_FINAL;
max = 0;
major_v_hw = ~0;
g->gr.ctx_vars.dynamic = false;
} else {
net = NETLIST_SLOT_A;
max = MAX_NETLIST;
major_v_hw = gk20a_readl(g,
gr_fecs_ctx_state_store_major_rev_id_r());
g->gr.ctx_vars.dynamic = true;
}
for (; net < max; net++) {
if (g->ops.gr_ctx.get_netlist_name(net, name) != 0) {
gk20a_warn(d, "invalid netlist index %d", net);
continue;
}
netlist_fw = gk20a_request_firmware(g, name);
if (!netlist_fw) {
gk20a_warn(d, "failed to load netlist %s", name);
continue;
}
netlist = (struct netlist_image *)netlist_fw->data;
for (i = 0; i < netlist->header.regions; i++) {
u32 *src = (u32 *)((u8 *)netlist + netlist->regions[i].data_offset);
u32 size = netlist->regions[i].data_size;
switch (netlist->regions[i].region_id) {
case NETLIST_REGIONID_FECS_UCODE_DATA:
gk20a_dbg_info("NETLIST_REGIONID_FECS_UCODE_DATA");
err = gr_gk20a_alloc_load_netlist_u32(
src, size, &g->gr.ctx_vars.ucode.fecs.data);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_FECS_UCODE_INST:
gk20a_dbg_info("NETLIST_REGIONID_FECS_UCODE_INST");
err = gr_gk20a_alloc_load_netlist_u32(
src, size, &g->gr.ctx_vars.ucode.fecs.inst);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_GPCCS_UCODE_DATA:
gk20a_dbg_info("NETLIST_REGIONID_GPCCS_UCODE_DATA");
err = gr_gk20a_alloc_load_netlist_u32(
src, size, &g->gr.ctx_vars.ucode.gpccs.data);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_GPCCS_UCODE_INST:
gk20a_dbg_info("NETLIST_REGIONID_GPCCS_UCODE_INST");
err = gr_gk20a_alloc_load_netlist_u32(
src, size, &g->gr.ctx_vars.ucode.gpccs.inst);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_SW_BUNDLE_INIT:
gk20a_dbg_info("NETLIST_REGIONID_SW_BUNDLE_INIT");
err = gr_gk20a_alloc_load_netlist_av(
src, size, &g->gr.ctx_vars.sw_bundle_init);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_SW_METHOD_INIT:
gk20a_dbg_info("NETLIST_REGIONID_SW_METHOD_INIT");
err = gr_gk20a_alloc_load_netlist_av(
src, size, &g->gr.ctx_vars.sw_method_init);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_SW_CTX_LOAD:
gk20a_dbg_info("NETLIST_REGIONID_SW_CTX_LOAD");
err = gr_gk20a_alloc_load_netlist_aiv(
src, size, &g->gr.ctx_vars.sw_ctx_load);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_SW_NON_CTX_LOAD:
gk20a_dbg_info("NETLIST_REGIONID_SW_NON_CTX_LOAD");
err = gr_gk20a_alloc_load_netlist_av(
src, size, &g->gr.ctx_vars.sw_non_ctx_load);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_CTXREG_SYS:
gk20a_dbg_info("NETLIST_REGIONID_CTXREG_SYS");
err = gr_gk20a_alloc_load_netlist_aiv(
src, size, &g->gr.ctx_vars.ctxsw_regs.sys);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_CTXREG_GPC:
gk20a_dbg_info("NETLIST_REGIONID_CTXREG_GPC");
err = gr_gk20a_alloc_load_netlist_aiv(
src, size, &g->gr.ctx_vars.ctxsw_regs.gpc);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_CTXREG_TPC:
gk20a_dbg_info("NETLIST_REGIONID_CTXREG_TPC");
err = gr_gk20a_alloc_load_netlist_aiv(
src, size, &g->gr.ctx_vars.ctxsw_regs.tpc);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_CTXREG_ZCULL_GPC:
gk20a_dbg_info("NETLIST_REGIONID_CTXREG_ZCULL_GPC");
err = gr_gk20a_alloc_load_netlist_aiv(
src, size, &g->gr.ctx_vars.ctxsw_regs.zcull_gpc);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_CTXREG_PPC:
gk20a_dbg_info("NETLIST_REGIONID_CTXREG_PPC");
err = gr_gk20a_alloc_load_netlist_aiv(
src, size, &g->gr.ctx_vars.ctxsw_regs.ppc);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_CTXREG_PM_SYS:
gk20a_dbg_info("NETLIST_REGIONID_CTXREG_PM_SYS");
err = gr_gk20a_alloc_load_netlist_aiv(
src, size, &g->gr.ctx_vars.ctxsw_regs.pm_sys);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_CTXREG_PM_GPC:
gk20a_dbg_info("NETLIST_REGIONID_CTXREG_PM_GPC");
err = gr_gk20a_alloc_load_netlist_aiv(
src, size, &g->gr.ctx_vars.ctxsw_regs.pm_gpc);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_CTXREG_PM_TPC:
gk20a_dbg_info("NETLIST_REGIONID_CTXREG_PM_TPC");
err = gr_gk20a_alloc_load_netlist_aiv(
src, size, &g->gr.ctx_vars.ctxsw_regs.pm_tpc);
if (err)
goto clean_up;
break;
case NETLIST_REGIONID_BUFFER_SIZE:
g->gr.ctx_vars.buffer_size = *src;
gk20a_dbg_info("NETLIST_REGIONID_BUFFER_SIZE : %d",
g->gr.ctx_vars.buffer_size);
break;
case NETLIST_REGIONID_CTXSW_REG_BASE_INDEX:
g->gr.ctx_vars.regs_base_index = *src;
gk20a_dbg_info("NETLIST_REGIONID_CTXSW_REG_BASE_INDEX : %d",
g->gr.ctx_vars.regs_base_index);
break;
case NETLIST_REGIONID_MAJORV:
major_v = *src;
gk20a_dbg_info("NETLIST_REGIONID_MAJORV : %d",
major_v);
break;
case NETLIST_REGIONID_NETLIST_NUM:
netlist_num = *src;
gk20a_dbg_info("NETLIST_REGIONID_NETLIST_NUM : %d",
netlist_num);
break;
case NETLIST_REGIONID_CTXREG_PMPPC:
gk20a_dbg_info("NETLIST_REGIONID_CTXREG_PMPPC skipped");
break;
default:
gk20a_dbg_info("unrecognized region %d skipped", i);
break;
}
}
if (net != NETLIST_FINAL && major_v != major_v_hw) {
gk20a_dbg_info("skip %s: major_v 0x%08x doesn't match hw 0x%08x",
name, major_v, major_v_hw);
goto clean_up;
}
g->gr.ctx_vars.valid = true;
g->gr.netlist = net;
release_firmware(netlist_fw);
gk20a_dbg_fn("done");
goto done;
clean_up:
kfree(g->gr.ctx_vars.ucode.fecs.inst.l);
kfree(g->gr.ctx_vars.ucode.fecs.data.l);
kfree(g->gr.ctx_vars.ucode.gpccs.inst.l);
kfree(g->gr.ctx_vars.ucode.gpccs.data.l);
kfree(g->gr.ctx_vars.sw_bundle_init.l);
kfree(g->gr.ctx_vars.sw_method_init.l);
kfree(g->gr.ctx_vars.sw_ctx_load.l);
kfree(g->gr.ctx_vars.sw_non_ctx_load.l);
kfree(g->gr.ctx_vars.ctxsw_regs.sys.l);
kfree(g->gr.ctx_vars.ctxsw_regs.gpc.l);
kfree(g->gr.ctx_vars.ctxsw_regs.tpc.l);
kfree(g->gr.ctx_vars.ctxsw_regs.zcull_gpc.l);
kfree(g->gr.ctx_vars.ctxsw_regs.ppc.l);
kfree(g->gr.ctx_vars.ctxsw_regs.pm_sys.l);
kfree(g->gr.ctx_vars.ctxsw_regs.pm_gpc.l);
kfree(g->gr.ctx_vars.ctxsw_regs.pm_tpc.l);
release_firmware(netlist_fw);
err = -ENOENT;
}
done:
if (g->gr.ctx_vars.valid) {
gk20a_dbg_info("netlist image %s loaded", name);
return 0;
} else {
gk20a_err(d, "failed to load netlist image!!");
return err;
}
}
int gr_gk20a_init_ctx_vars(struct gk20a *g, struct gr_gk20a *gr)
{
if (tegra_platform_is_linsim())
return gr_gk20a_init_ctx_vars_sim(g, gr);
else
return gr_gk20a_init_ctx_vars_fw(g, gr);
}
void gk20a_init_gr_ctx(struct gpu_ops *gops)
{
gops->gr_ctx.get_netlist_name = gr_gk20a_get_netlist_name;
gops->gr_ctx.is_fw_defined = gr_gk20a_is_firmware_defined;
gops->gr_ctx.use_dma_for_fw_bootstrap = true;
}
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